ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Animals  (739)
  • Nature Publishing Group (NPG)  (739)
  • 2010-2014  (739)
  • 1980-1984
  • 1925-1929
  • 2011  (739)
Collection
Publisher
Years
  • 2010-2014  (739)
  • 1980-1984
  • 1925-1929
Year
  • 1
    Publication Date: 2011-03-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nekaris, K Anne-Isola -- Nijman, Vincent -- Godfrey, Laurie R -- England -- Nature. 2011 Mar 24;471(7339):448. doi: 10.1038/471448c.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21430762" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anthropology/*methods ; Culture ; Extinction, Biological ; Humans ; *Interdisciplinary Studies ; *Primates/physiology/psychology ; Tool Use Behavior
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Publication Date: 2011-02-11
    Description: Telomere dysfunction activates p53-mediated cellular growth arrest, senescence and apoptosis to drive progressive atrophy and functional decline in high-turnover tissues. The broader adverse impact of telomere dysfunction across many tissues including more quiescent systems prompted transcriptomic network analyses to identify common mechanisms operative in haematopoietic stem cells, heart and liver. These unbiased studies revealed profound repression of peroxisome proliferator-activated receptor gamma, coactivator 1 alpha and beta (PGC-1alpha and PGC-1beta, also known as Ppargc1a and Ppargc1b, respectively) and the downstream network in mice null for either telomerase reverse transcriptase (Tert) or telomerase RNA component (Terc) genes. Consistent with PGCs as master regulators of mitochondrial physiology and metabolism, telomere dysfunction is associated with impaired mitochondrial biogenesis and function, decreased gluconeogenesis, cardiomyopathy, and increased reactive oxygen species. In the setting of telomere dysfunction, enforced Tert or PGC-1alpha expression or germline deletion of p53 (also known as Trp53) substantially restores PGC network expression, mitochondrial respiration, cardiac function and gluconeogenesis. We demonstrate that telomere dysfunction activates p53 which in turn binds and represses PGC-1alpha and PGC-1beta promoters, thereby forging a direct link between telomere and mitochondrial biology. We propose that this telomere-p53-PGC axis contributes to organ and metabolic failure and to diminishing organismal fitness in the setting of telomere dysfunction.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3741661/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3741661/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sahin, Ergun -- Colla, Simona -- Liesa, Marc -- Moslehi, Javid -- Muller, Florian L -- Guo, Mira -- Cooper, Marcus -- Kotton, Darrell -- Fabian, Attila J -- Walkey, Carl -- Maser, Richard S -- Tonon, Giovanni -- Foerster, Friedrich -- Xiong, Robert -- Wang, Y Alan -- Shukla, Sachet A -- Jaskelioff, Mariela -- Martin, Eric S -- Heffernan, Timothy P -- Protopopov, Alexei -- Ivanova, Elena -- Mahoney, John E -- Kost-Alimova, Maria -- Perry, Samuel R -- Bronson, Roderick -- Liao, Ronglih -- Mulligan, Richard -- Shirihai, Orian S -- Chin, Lynda -- DePinho, Ronald A -- P30 DK046200/DK/NIDDK NIH HHS/ -- P30DK079638/DK/NIDDK NIH HHS/ -- R01 CA084628/CA/NCI NIH HHS/ -- R01 DK035914/DK/NIDDK NIH HHS/ -- R01 DK056690/DK/NIDDK NIH HHS/ -- R01 DK063356/DK/NIDDK NIH HHS/ -- R01 DK089185/DK/NIDDK NIH HHS/ -- U24 DK-59635/DK/NIDDK NIH HHS/ -- England -- Nature. 2011 Feb 17;470(7334):359-65. doi: 10.1038/nature09787. Epub 2011 Feb 9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Belfer Institute for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, Massachusetts 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21307849" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/biosynthesis ; Aging/metabolism/pathology ; Animals ; Cardiomyopathies/chemically induced/metabolism/pathology/physiopathology ; Cell Proliferation ; DNA, Mitochondrial/analysis ; Doxorubicin/toxicity ; Gluconeogenesis ; Hematopoietic Stem Cells/metabolism/pathology ; Liver/cytology/metabolism ; Mice ; Mitochondria/*metabolism/*pathology ; Myocardium/cytology/metabolism ; RNA/genetics ; Reactive Oxygen Species/metabolism ; Telomerase/deficiency/genetics ; Telomere/enzymology/genetics/*metabolism/*pathology ; Transcription Factors/antagonists & inhibitors/metabolism ; Tumor Suppressor Protein p53/deficiency/genetics/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Publication Date: 2011-04-02
    Description: Cpdm (chronic proliferative dermatitis) mice develop chronic dermatitis and an immunodeficiency with increased serum IgM, symptoms that resemble those of patients with X-linked hyper-IgM syndrome and hypohydrotic ectodermal dysplasia (XHM-ED), which is caused by mutations in NEMO (NF-kappaB essential modulator; also known as IKBKG). Spontaneous null mutations in the Sharpin (SHANK-associated RH domain interacting protein in postsynaptic density) gene are responsible for the cpdm phenotype in mice. SHARPIN shows significant similarity to HOIL-1L (also known as RBCK1), a component of linear ubiquitin chain assembly complex (LUBAC), which induces NF-kappaB activation through conjugation of linear polyubiquitin chains to NEMO. Here, we identify SHARPIN as an additional component of LUBAC. SHARPIN-containing complexes can linearly ubiquitinate NEMO and activated NF-kappaB. Thus, we re-define LUBAC as a complex containing SHARPIN, HOIL-1L, and HOIP (also known as RNF31). Deletion of SHARPIN drastically reduced the amount of LUBAC, which resulted in attenuated TNF-alpha- and CD40-mediated activation of NF-kappaB in mouse embryonic fibroblasts (MEFs) or B cells from cpdm mice. Considering the pleomorphic phenotype of cpdm mice, these results confirm the predicted role of LUBAC-mediated linear polyubiquitination in NF-kappaB activation induced by various stimuli, and strongly suggest the involvement of LUBAC-induced NF-kappaB activation in various disorders.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tokunaga, Fuminori -- Nakagawa, Tomoko -- Nakahara, Masaki -- Saeki, Yasushi -- Taniguchi, Masami -- Sakata, Shin-ichi -- Tanaka, Keiji -- Nakano, Hiroyasu -- Iwai, Kazuhiro -- England -- Nature. 2011 Mar 31;471(7340):633-6. doi: 10.1038/nature09815.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biophysics and Biochemistry, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21455180" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; CD40 Ligand/metabolism ; Carrier Proteins/metabolism ; Cells, Cultured ; HEK293 Cells ; Humans ; Intracellular Signaling Peptides and Proteins/metabolism ; Mice ; Multiprotein Complexes/*chemistry/*metabolism ; NF-kappa B/*metabolism ; Nerve Tissue Proteins/deficiency/genetics/*metabolism ; Tumor Necrosis Factor-alpha/metabolism ; Ubiquitin/*metabolism ; Ubiquitin-Protein Ligase Complexes/chemistry/metabolism ; Ubiquitin-Protein Ligases/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    Publication Date: 2011-08-05
    Description: The role of African savannahs in the evolution of early hominins has been debated for nearly a century. Resolution of this issue has been hindered by difficulty in quantifying the fraction of woody cover in the fossil record. Here we show that the fraction of woody cover in tropical ecosystems can be quantified using stable carbon isotopes in soils. Furthermore, we use fossil soils from hominin sites in the Awash and Omo-Turkana basins in eastern Africa to reconstruct the fraction of woody cover since the Late Miocene epoch (about 7 million years ago). (13)C/(12)C ratio data from 1,300 palaeosols at or adjacent to hominin sites dating to at least 6 million years ago show that woody cover was predominantly less than approximately 40% at most sites. These data point to the prevalence of open environments at the majority of hominin fossil sites in eastern Africa over the past 6 million years.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cerling, Thure E -- Wynn, Jonathan G -- Andanje, Samuel A -- Bird, Michael I -- Korir, David Kimutai -- Levin, Naomi E -- Mace, William -- Macharia, Anthony N -- Quade, Jay -- Remien, Christopher H -- England -- Nature. 2011 Aug 3;476(7358):51-6. doi: 10.1038/nature10306.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University of Utah, Salt Lake City, Utah 84112, USA. thure.cerling@utah.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21814275" target="_blank"〉PubMed〈/a〉
    Keywords: Africa, Eastern ; Animals ; *Biological Evolution ; Calibration ; Carbon Isotopes/analysis ; *Ecosystem ; Fossils ; Gait/physiology ; Hominidae/anatomy & histology/*physiology ; Paleontology ; Plant Leaves/growth & development ; Poaceae/growth & development ; Population Dynamics ; Soil/chemistry ; *Trees/growth & development ; Tropical Climate ; Wilderness ; Wood
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    Publication Date: 2011-05-13
    Description: The generation of functional hepatocytes independent of donor liver organs is of great therapeutic interest with regard to regenerative medicine and possible cures for liver disease. Induced hepatic differentiation has been achieved previously using embryonic stem cells or induced pluripotent stem cells. Particularly, hepatocytes generated from a patient's own induced pluripotent stem cells could theoretically avoid immunological rejection. However, the induction of hepatocytes from induced pluripotent stem cells is a complicated process that would probably be replaced with the arrival of improved technology. Overexpression of lineage-specific transcription factors directly converts terminally differentiated cells into some other lineages, including neurons, cardiomyocytes and blood progenitors; however, it remains unclear whether these lineage-converted cells could repair damaged tissues in vivo. Here we demonstrate the direct induction of functional hepatocyte-like (iHep) cells from mouse tail-tip fibroblasts by transduction of Gata4, Hnf1alpha and Foxa3, and inactivation of p19(Arf). iHep cells show typical epithelial morphology, express hepatic genes and acquire hepatocyte functions. Notably, transplanted iHep cells repopulate the livers of fumarylacetoacetate-hydrolase-deficient (Fah(-/-)) mice and rescue almost half of recipients from death by restoring liver functions. Our study provides a novel strategy to generate functional hepatocyte-like cells for the purpose of liver engineering and regenerative medicine.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huang, Pengyu -- He, Zhiying -- Ji, Shuyi -- Sun, Huawang -- Xiang, Dao -- Liu, Changcheng -- Hu, Yiping -- Wang, Xin -- Hui, Lijian -- England -- Nature. 2011 May 11;475(7356):386-9. doi: 10.1038/nature10116.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Cell Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy for Sciences, Yueyang Road 320, 200031 Shanghai, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21562492" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cell Differentiation/genetics ; Cell Lineage ; Cells, Cultured ; Cyclin-Dependent Kinase Inhibitor p16/deficiency/genetics ; DNA-Binding Proteins/deficiency ; Fibroblasts/*cytology/*metabolism ; GATA4 Transcription Factor/genetics/metabolism ; Gene Expression Profiling ; Hepatocyte Nuclear Factor 1-alpha/genetics/metabolism ; Hepatocyte Nuclear Factor 3-gamma/genetics/metabolism ; Hepatocytes/*cytology/*metabolism/physiology/transplantation ; Hydrolases/deficiency/genetics ; Liver/cytology/enzymology/physiology/physiopathology ; Liver Diseases/enzymology/pathology/physiopathology/therapy ; Mice ; Mice, Inbred NOD ; Mice, SCID ; Regenerative Medicine/methods ; Survival Rate ; Tail/cytology ; Tissue Engineering/methods ; Transduction, Genetic
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    Publication Date: 2011-02-26
    Description: Mammalian prions cause fatal neurodegenerative conditions including Creutzfeldt-Jakob disease in humans and scrapie and bovine spongiform encephalopathy in animals. Prion infections are typically associated with remarkably prolonged but highly consistent incubation periods followed by a rapid clinical phase. The relationship between prion propagation, generation of neurotoxic species and clinical onset has remained obscure. Prion incubation periods in experimental animals are known to vary inversely with expression level of cellular prion protein. Here we demonstrate that prion propagation in brain proceeds via two distinct phases: a clinically silent exponential phase not rate-limited by prion protein concentration which rapidly reaches a maximal prion titre, followed by a distinct switch to a plateau phase. The latter determines time to clinical onset in a manner inversely proportional to prion protein concentration. These findings demonstrate an uncoupling of infectivity and toxicity. We suggest that prions themselves are not neurotoxic but catalyse the formation of such species from PrP(C). Production of neurotoxic species is triggered when prion propagation saturates, leading to a switch from autocatalytic production of infectivity (phase 1) to a toxic (phase 2) pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sandberg, Malin K -- Al-Doujaily, Huda -- Sharps, Bernadette -- Clarke, Anthony R -- Collinge, John -- MC_U123160656/Medical Research Council/United Kingdom -- MC_U123192748/Medical Research Council/United Kingdom -- Medical Research Council/United Kingdom -- England -- Nature. 2011 Feb 24;470(7335):540-2. doi: 10.1038/nature09768.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉MRC Prion Unit and Department of Neurodegenerative Disease, UCL Institute of Neurology, Queen Square, London WC1N 3BG, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21350487" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biocatalysis ; Biological Assay ; Disease Models, Animal ; Gene Expression ; Kinetics ; Mice ; Mice, Transgenic ; Models, Biological ; PrPC Proteins/analysis/biosynthesis/genetics/metabolism ; PrPSc Proteins/biosynthesis/*metabolism/*pathogenicity/toxicity ; Prion Diseases/*metabolism/*pathology/physiopathology/transmission ; Survival Rate ; Time Factors ; Toxicity Tests
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    Publication Date: 2011-10-28
    Description: Sauropod dinosaurs were the largest vertebrates ever to walk the Earth, and as mega-herbivores they were important parts of terrestrial ecosystems. In the Late Jurassic-aged Morrison depositional basin of western North America, these animals occupied lowland river-floodplain settings characterized by a seasonally dry climate. Massive herbivores with high nutritional and water needs could periodically experience nutritional and water stress under these conditions, and thus the common occurrence of sauropods in this basin has remained a paradox. Energetic arguments and mammalian analogues have been used to suggest that migration allowed sauropods access to food and water resources over a wide region or during times of drought or both, but there has been no direct support for these hypotheses. Here we compare oxygen isotope ratios (delta(18)O) of tooth-enamel carbonate from the sauropod Camarasaurus with those of ancient soil, lake and wetland (that is, 'authigenic') carbonates that formed in lowland settings. We demonstrate that certain populations of these animals did in fact undertake seasonal migrations of several hundred kilometres from lowland to upland environments. This ability to describe patterns of sauropod movement will help to elucidate the role that migration played in the ecology and evolution of gigantism of these and associated dinosaurs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fricke, Henry C -- Hencecroth, Justin -- Hoerner, Marie E -- England -- Nature. 2011 Oct 26;480(7378):513-5. doi: 10.1038/nature10570.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Geology, Colorado College, Colorado Springs, Colorado 80903, USA. hfricke@coloradocollege.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22031326" target="_blank"〉PubMed〈/a〉
    Keywords: *Animal Migration ; Animals ; Dental Enamel/chemistry ; Dinosaurs/*physiology ; Oxygen Isotopes/analysis ; Seasons ; Soil/analysis
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 8
    Publication Date: 2011-06-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Apostolou, Effie -- Hochedlinger, Konrad -- England -- Nature. 2011 Jun 8;474(7350):165-6. doi: 10.1038/474165a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21654792" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cellular Reprogramming/genetics/immunology ; Graft Rejection/*genetics/*immunology ; Induced Pluripotent Stem Cells/cytology/*immunology/metabolism/*transplantation ; Mice ; Teratoma/genetics/immunology ; Transplantation, Homologous/immunology ; Transplantation, Isogeneic/immunology ; Up-Regulation/genetics/immunology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 9
    Publication Date: 2011-02-19
    Description: Toll-like receptors (TLRs) function as initiators of inflammation through their ability to sense pathogen-associated molecular patterns and products of tissue damage. Transcriptional activation of many TLR-responsive genes requires an initial de-repression step in which nuclear receptor co-repressor (NCoR) complexes are actively removed from the promoters of target genes to relieve basal repression. Ligand-dependent SUMOylation of liver X receptors (LXRs) has been found to suppress TLR4-induced transcription potently by preventing the NCoR clearance step, but the underlying mechanisms remain enigmatic. Here we provide evidence that coronin 2A (CORO2A), a component of the NCoR complex of previously unknown function, mediates TLR-induced NCoR turnover by a mechanism involving interaction with oligomeric nuclear actin. SUMOylated LXRs block NCoR turnover by binding to a conserved SUMO2/SUMO3-interaction motif in CORO2A and preventing actin recruitment. Intriguingly, the LXR transrepression pathway can itself be inactivated by inflammatory signals that induce calcium/calmodulin-dependent protein kinase IIgamma (CaMKIIgamma)-dependent phosphorylation of LXRs, leading to their deSUMOylation by the SUMO protease SENP3 and release from CORO2A. These findings uncover a CORO2A-actin-dependent mechanism for the de-repression of inflammatory response genes that can be differentially regulated by phosphorylation and by nuclear receptor signalling pathways that control immunity and homeostasis.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3464905/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3464905/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huang, Wendy -- Ghisletti, Serena -- Saijo, Kaoru -- Gandhi, Meghal -- Aouadi, Myriam -- Tesz, Greg J -- Zhang, Dawn X -- Yao, Joyee -- Czech, Michael P -- Goode, Bruce L -- Rosenfeld, Michael G -- Glass, Christopher K -- 1F31DK083913/DK/NIDDK NIH HHS/ -- CA52599/CA/NCI NIH HHS/ -- DK074868/DK/NIDDK NIH HHS/ -- DK085853/DK/NIDDK NIH HHS/ -- HC088093/HC/NHLBI NIH HHS/ -- P01 DK074868/DK/NIDDK NIH HHS/ -- P50 HL056989/HL/NHLBI NIH HHS/ -- R01 CA052599/CA/NCI NIH HHS/ -- R01 CA097134/CA/NCI NIH HHS/ -- R01 DK091183/DK/NIDDK NIH HHS/ -- R01 HL065445/HL/NHLBI NIH HHS/ -- R01 NS034934/NS/NINDS NIH HHS/ -- R37 DK039949/DK/NIDDK NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2011 Feb 17;470(7334):414-8. doi: 10.1038/nature09703.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cellular and Molecular Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093-0651, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21331046" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/chemistry/*metabolism ; Animals ; Calcium-Calmodulin-Dependent Protein Kinase Type 2/metabolism ; Cell Line ; *Gene Expression Regulation/drug effects ; Gene Knockdown Techniques ; HeLa Cells ; Homeostasis/genetics ; Humans ; Inflammation/*genetics ; Lipopolysaccharides/pharmacology ; Mice ; Microfilament Proteins/chemistry/deficiency/genetics/*metabolism ; Orphan Nuclear Receptors/metabolism ; Peptide Hydrolases/metabolism ; Peritonitis/chemically induced/metabolism ; Phosphorylation ; Promoter Regions, Genetic/genetics ; Protein Structure, Tertiary ; Signal Transduction ; Sumoylation ; Thioglycolates/pharmacology ; Toll-Like Receptors/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 10
    Publication Date: 2011-02-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Onslow, Mark -- Packman, Ann -- England -- Nature. 2011 Feb 24;470(7335):465; author reply 465. doi: 10.1038/470465b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21350470" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Conditioning, Operant ; Humans ; Randomized Controlled Trials as Topic ; Reproducibility of Results ; Stuttering/epidemiology/*therapy ; Treatment Outcome
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 11
    Publication Date: 2011-03-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tuveson, David -- Hanahan, Douglas -- England -- Nature. 2011 Mar 17;471(7338):316-7. doi: 10.1038/471316a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21412332" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Clinical Trials, Phase III as Topic ; *Disease Models, Animal ; *Drug Evaluation, Preclinical ; Everolimus ; Humans ; Indoles/*pharmacology/therapeutic use ; Mice ; Neuroendocrine Tumors/*drug therapy/enzymology/metabolism/pathology ; Pancreatic Neoplasms/*drug therapy/enzymology/metabolism/pathology ; Pyrroles/*pharmacology/therapeutic use ; Signal Transduction/drug effects ; Sirolimus/*analogs & derivatives/pharmacology/therapeutic use ; Survival Rate ; *Translational Medical Research
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 12
    Publication Date: 2011-09-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baker, Thomas P -- Mateczun, John M -- Rice, Charles L -- England -- Nature. 2011 Sep 21;477(7365):407. doi: 10.1038/477407a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21938054" target="_blank"〉PubMed〈/a〉
    Keywords: Academies and Institutes/*organization & administration ; Animals ; Humans ; Military Medicine/*organization & administration ; Pathology/*organization & administration ; United States Government Agencies/*organization & administration
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 13
    Publication Date: 2011-05-24
    Description: Live vaccines have long been known to trigger far more vigorous immune responses than their killed counterparts. This has been attributed to the ability of live microorganisms to replicate and express specialized virulence factors that facilitate invasion and infection of their hosts. However, protective immunization can often be achieved with a single injection of live, but not dead, attenuated microorganisms stripped of their virulence factors. Pathogen-associated molecular patterns (PAMPs), which are detected by the immune system, are present in both live and killed vaccines, indicating that certain poorly characterized aspects of live microorganisms, not incorporated in dead vaccines, are particularly effective at inducing protective immunity. Here we show that the mammalian innate immune system can directly sense microbial viability through detection of a special class of viability-associated PAMPs (vita-PAMPs). We identify prokaryotic messenger RNA as a vita-PAMP present only in viable bacteria, the recognition of which elicits a unique innate response and a robust adaptive antibody response. Notably, the innate response evoked by viability and prokaryotic mRNA was thus far considered to be reserved for pathogenic bacteria, but we show that even non-pathogenic bacteria in sterile tissues can trigger similar responses, provided that they are alive. Thus, the immune system actively gauges the infectious risk by searching PAMPs for signatures of microbial life and thus infectivity. Detection of vita-PAMPs triggers a state of alert not warranted for dead bacteria. Vaccine formulations that incorporate vita-PAMPs could thus combine the superior protection of live vaccines with the safety of dead vaccines.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3289942/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3289942/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sander, Leif E -- Davis, Michael J -- Boekschoten, Mark V -- Amsen, Derk -- Dascher, Christopher C -- Ryffel, Bernard -- Swanson, Joel A -- Muller, Michael -- Blander, J Magarian -- AI080959A/AI/NIAID NIH HHS/ -- R01 AI064668/AI/NIAID NIH HHS/ -- R01 AI095245/AI/NIAID NIH HHS/ -- R21 AI080959/AI/NIAID NIH HHS/ -- R21 AI080959-01A1/AI/NIAID NIH HHS/ -- England -- Nature. 2011 May 22;474(7351):385-9. doi: 10.1038/nature10072.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Immunology Institute, Department of Medicine, Mount Sinai School of Medicine, 1425 Madison Avenue, New York, New York 10029, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21602824" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Vesicular Transport/deficiency/immunology ; Animals ; Antibodies, Bacterial/immunology ; Bacteria/genetics/immunology/pathogenicity ; Bacterial Vaccines/genetics/immunology ; Carrier Proteins/metabolism ; Cells, Cultured ; Dendritic Cells/cytology/immunology/microbiology ; Immunity, Innate/*immunology ; Inflammasomes/immunology/metabolism ; Interferon-beta/genetics/immunology ; Macrophages/cytology/immunology/microbiology ; Mice ; Mice, Inbred C57BL ; Microbial Viability/*genetics/*immunology ; Phagocytosis ; Phagosomes/immunology/microbiology ; RNA, Bacterial/genetics/*immunology ; RNA, Messenger/genetics/*immunology ; Vaccines, Attenuated/genetics/immunology ; Vaccines, Inactivated/immunology ; Virulence Factors
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 14
    Publication Date: 2011-02-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nosengo, Nicola -- England -- Nature. 2011 Feb 24;470(7335):444-5. doi: 10.1038/470444a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21350456" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aquatic Organisms ; Ciona intestinalis/genetics ; Europe ; International Cooperation ; Marine Biology/economics/*organization & administration/*trends ; Models, Animal ; Research Support as Topic/economics/*trends
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 15
    facet.materialart.
    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2011-09-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nosonovsky, Michael -- England -- Nature. 2011 Sep 21;477(7365):412-3. doi: 10.1038/477412a.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Mechanical Engineering, College of Engineering & Applied Science, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53211, USA. nosonovs@uwm.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21938059" target="_blank"〉PubMed〈/a〉
    Keywords: Angiosperms/*chemistry ; Animals ; Biomimetic Materials/*chemistry ; Lubricants/*chemistry ; *Pressure ; *Surface Properties ; *Wettability
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 16
    Publication Date: 2011-07-08
    Description: A central challenge for predators is achieving positive energy balance when prey are spatially and temporally heterogeneous. Ecological heterogeneity produces evolutionary trade-offs in the physiological design of predators; this is because the ability to capitalize on pulses of food abundance requires high capacity for food-processing, yet maintaining such capacity imposes energetic costs that are taxing during periods of food scarcity. Recent advances in physiology show that when variation in foraging opportunities is predictable, animals may adjust energetic trade-offs by rapidly modulating their digestive system to track variation in foraging opportunities. However, it is increasingly recognized that foraging opportunities for animals are unpredictable, which should favour animals that maintain a capacity for food-processing that exceeds average levels of consumption (loads). Despite this basic principle of quantitative evolutionary design, estimates of digestive load:capacity ratios in wild animals are virtually non-existent. Here we provide an extensive assessment of load:capacity ratios for the digestive systems of predators in the wild, compiling 639 estimates across 38 species of fish. We found that piscine predators typically maintain the physiological capacity to feed at daily rates 2-3 times higher than what they experience on average. A numerical simulation of the trade-off between food-processing capacity and metabolic cost suggests that the observed level of physiological opportunism is profitable only if predator-prey encounters, and thus predator energy budgets, are far more variable in nature than currently assumed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Armstrong, Jonathan B -- Schindler, Daniel E -- England -- Nature. 2011 Jul 6;476(7358):84-7. doi: 10.1038/nature10240.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Aquatic and Fishery Sciences, Box 355020, University of Washington, Seattle, Washington 98195, USA. Jonny99@uw.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21734659" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Evolution ; Digestion/*physiology ; Energy Metabolism/*physiology ; Feeding Behavior/*physiology ; Fishes/*physiology ; Models, Biological ; *Predatory Behavior/physiology ; Starvation/*physiopathology/*veterinary ; Time Factors ; *Uncertainty
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 17
    Publication Date: 2011-08-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Orphan, Victoria J -- Hoehler, Tori M -- England -- Nature. 2011 Aug 10;476(7359):154-5. doi: 10.1038/476154a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21833075" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Atlantic Ocean ; Bivalvia/metabolism/*microbiology ; *Ecosystem ; *Energy Metabolism ; Gills/metabolism/microbiology ; Hot Springs/*chemistry/microbiology ; Hydrogen/*metabolism ; Hydrogenase/metabolism ; Seawater/chemistry/microbiology ; Sulfides/metabolism ; Symbiosis/genetics/*physiology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 18
    Publication Date: 2011-11-29
    Description: Chromatin reorganization is governed by multiple post-translational modifications of chromosomal proteins and DNA. These histone modifications are reversible, dynamic events that can regulate DNA-driven cellular processes. However, the molecular mechanisms that coordinate histone modification patterns remain largely unknown. In metazoans, reversible protein modification by O-linked N-acetylglucosamine (GlcNAc) is catalysed by two enzymes, O-GlcNAc transferase (OGT) and O-GlcNAcase (OGA). However, the significance of GlcNAcylation in chromatin reorganization remains elusive. Here we report that histone H2B is GlcNAcylated at residue S112 by OGT in vitro and in living cells. Histone GlcNAcylation fluctuated in response to extracellular glucose through the hexosamine biosynthesis pathway (HBP). H2B S112 GlcNAcylation promotes K120 monoubiquitination, in which the GlcNAc moiety can serve as an anchor for a histone H2B ubiquitin ligase. H2B S112 GlcNAc was localized to euchromatic areas on fly polytene chromosomes. In a genome-wide analysis, H2B S112 GlcNAcylation sites were observed widely distributed over chromosomes including transcribed gene loci, with some sites co-localizing with H2B K120 monoubiquitination. These findings suggest that H2B S112 GlcNAcylation is a histone modification that facilitates H2BK120 monoubiquitination, presumably for transcriptional activation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fujiki, Ryoji -- Hashiba, Waka -- Sekine, Hiroki -- Yokoyama, Atsushi -- Chikanishi, Toshihiro -- Ito, Saya -- Imai, Yuuki -- Kim, Jaehoon -- He, Housheng Hansen -- Igarashi, Katsuhide -- Kanno, Jun -- Ohtake, Fumiaki -- Kitagawa, Hirochika -- Roeder, Robert G -- Brown, Myles -- Kato, Shigeaki -- England -- Nature. 2011 Nov 27;480(7378):557-60. doi: 10.1038/nature10656.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Molecular and Cellular Biosciences, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22121020" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylglucosamine/*metabolism ; Amino Acid Sequence ; Animals ; Cell Line ; HeLa Cells ; Histones/chemistry/genetics/*metabolism ; Humans ; Models, Molecular ; Mutation ; Protein Structure, Tertiary ; Recombinant Proteins/chemistry/metabolism ; Ubiquitination
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 19
    Publication Date: 2011-06-10
    Description: Stem cells reside in a specialized regulatory microenvironment or niche, where they receive appropriate support for maintaining self-renewal and multi-lineage differentiation capacity. The niche may also protect stem cells from environmental insults including cytotoxic chemotherapy and perhaps pathogenic immunity. The testis, hair follicle and placenta are all sites of residence for stem cells and are immune-suppressive environments, called immune-privileged sites, where multiple mechanisms cooperate to prevent immune attack, even enabling prolonged survival of foreign allografts without immunosuppression. We sought to determine if somatic stem-cell niches more broadly are immune-privileged sites by examining the haematopoietic stem/progenitor cell (HSPC) niche in the bone marrow, a site where immune reactivity exists. We observed persistence of HSPCs from allogeneic donor mice (allo-HSPCs) in non-irradiated recipient mice for 30 days without immunosuppression with the same survival frequency compared to syngeneic HSPCs. These HSPCs were lost after the depletion of FoxP3 regulatory T (T(reg)) cells. High-resolution in vivo imaging over time demonstrated marked co-localization of HSPCs with T(reg) cells that accumulated on the endosteal surface in the calvarial and trabecular bone marrow. T(reg) cells seem to participate in creating a localized zone where HSPCs reside and where T(reg) cells are necessary for allo-HSPC persistence. In addition to processes supporting stem-cell function, the niche will provide a relative sanctuary from immune attack.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3725645/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3725645/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fujisaki, Joji -- Wu, Juwell -- Carlson, Alicia L -- Silberstein, Lev -- Putheti, Prabhakar -- Larocca, Rafael -- Gao, Wenda -- Saito, Toshiki I -- Lo Celso, Cristina -- Tsuyuzaki, Hitoshi -- Sato, Tatsuyuki -- Cote, Daniel -- Sykes, Megan -- Strom, Terry B -- Scadden, David T -- Lin, Charles P -- AI041521/AI/NIAID NIH HHS/ -- CA111519/CA/NCI NIH HHS/ -- HL097748/HL/NHLBI NIH HHS/ -- HL97794/HL/NHLBI NIH HHS/ -- P01 AI041521/AI/NIAID NIH HHS/ -- P01 AI073748/AI/NIAID NIH HHS/ -- P01 CA111519/CA/NCI NIH HHS/ -- P01 CA111519-05/CA/NCI NIH HHS/ -- R01 HL097748/HL/NHLBI NIH HHS/ -- R01 HL097748-02/HL/NHLBI NIH HHS/ -- R01 HL097794/HL/NHLBI NIH HHS/ -- R01 HL097794-02/HL/NHLBI NIH HHS/ -- England -- Nature. 2011 Jun 8;474(7350):216-9. doi: 10.1038/nature10160.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Advanced Microscopy Program, Center for Systems Biology and Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, USA. jfujisaki@partners.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21654805" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Survival/immunology ; Cells, Cultured ; Forkhead Transcription Factors/metabolism ; Graft Survival/*immunology ; Hematopoietic Stem Cells/cytology/*immunology ; Humans ; *Imaging, Three-Dimensional ; Interleukin-10/deficiency/genetics/immunology/metabolism ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Stem Cell Niche/cytology/*immunology ; T-Lymphocytes, Regulatory/*immunology/metabolism ; Time Factors ; Transplantation, Homologous/immunology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 20
    facet.materialart.
    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2011-12-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hughes, Virginia -- England -- Nature. 2011 Dec 14;480(7377):S48-9. doi: 10.1038/480S48a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22169803" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bone Marrow Transplantation ; Drug Resistance, Neoplasm/drug effects ; Humans ; Mice ; Mice, SCID ; Multiple Myeloma/*drug therapy/*pathology ; Neoplasm Transplantation ; Tumor Microenvironment/drug effects/*physiology ; Xenograft Model Antitumor Assays
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 21
    Publication Date: 2011-11-18
    Description: Heritable variation in behavioural traits generally has a complex genetic basis, and thus naturally occurring polymorphisms that influence behaviour have been defined only in rare instances. The isolation of wild strains of Caenorhabditis elegans has facilitated the study of natural genetic variation in this species and provided insights into its diverse microbial ecology. C. elegans responds to bacterial infection with conserved innate immune responses and, although lacking the immunological memory of vertebrate adaptive immunity, shows an aversive learning response to pathogenic bacteria. Here, we report the molecular characterization of naturally occurring coding polymorphisms in a C. elegans gene encoding a conserved HECT domain-containing E3 ubiquitin ligase, HECW-1. We show that two distinct polymorphisms in neighbouring residues of HECW-1 each affect C. elegans behavioural avoidance of a lawn of Pseudomonas aeruginosa. Neuron-specific rescue and ablation experiments and genetic interaction analysis indicate that HECW-1 functions in a pair of sensory neurons to inhibit P. aeruginosa lawn avoidance behaviour through inhibition of the neuropeptide receptor NPR-1 (ref. 10), which we have previously shown promotes P. aeruginosa lawn avoidance behaviour. Our data establish a molecular basis for natural variation in a C. elegans behaviour that may undergo adaptive changes in response to microbial pathogens.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3245782/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3245782/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chang, Howard C -- Paek, Jennifer -- Kim, Dennis H -- GM084477/GM/NIGMS NIH HHS/ -- R01 GM084477/GM/NIGMS NIH HHS/ -- R01 GM084477-05/GM/NIGMS NIH HHS/ -- England -- Nature. 2011 Nov 16;480(7378):525-9. doi: 10.1038/nature10643.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22089131" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Behavior, Animal ; *Caenorhabditis elegans/enzymology/genetics/microbiology ; Caenorhabditis elegans Proteins/*genetics/*metabolism ; Gene Expression Profiling ; Gene Expression Regulation, Enzymologic ; *Polymorphism, Genetic ; Pseudomonas aeruginosa/*physiology ; Receptors, Neuropeptide Y/metabolism ; Sensory Receptor Cells/enzymology ; Ubiquitin-Protein Ligases/*genetics/*metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 22
    facet.materialart.
    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2011-02-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sanderson, Katharine -- England -- Nature. 2011 Feb 10;470(7333):295-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21348148" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Computational Biology/education/*manpower ; *Databases, Factual/standards/trends/utilization ; *Documentation/trends ; Humans ; Job Satisfaction ; Mice ; Molecular Sequence Annotation/methods/trends ; Software
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 23
    Publication Date: 2011-01-21
    Description: Many tumours are composed of genetically diverse cells; however, little is known about how diversity evolves or the impact that diversity has on functional properties. Here, using xenografting and DNA copy number alteration (CNA) profiling of human BCR-ABL1 lymphoblastic leukaemia, we demonstrate that genetic diversity occurs in functionally defined leukaemia-initiating cells and that many diagnostic patient samples contain multiple genetically distinct leukaemia-initiating cell subclones. Reconstructing the subclonal genetic ancestry of several samples by CNA profiling demonstrated a branching multi-clonal evolution model of leukaemogenesis, rather than linear succession. For some patient samples, the predominant diagnostic clone repopulated xenografts, whereas in others it was outcompeted by minor subclones. Reconstitution with the predominant diagnosis clone was associated with more aggressive growth properties in xenografts, deletion of CDKN2A and CDKN2B, and a trend towards poorer patient outcome. Our findings link clonal diversity with leukaemia-initiating-cell function and underscore the importance of developing therapies that eradicate all intratumoral subclones.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Notta, Faiyaz -- Mullighan, Charles G -- Wang, Jean C Y -- Poeppl, Armando -- Doulatov, Sergei -- Phillips, Letha A -- Ma, Jing -- Minden, Mark D -- Downing, James R -- Dick, John E -- Canadian Institutes of Health Research/Canada -- England -- Nature. 2011 Jan 20;469(7330):362-7. doi: 10.1038/nature09733.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Stem Cell and Developmental Biology, Campbell Family Institute for Cancer Research/Ontario Cancer Institute, Toronto, Ontario M5G 1L7, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21248843" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Survival ; Clone Cells/*metabolism/*pathology ; Cyclin-Dependent Kinase Inhibitor p15/deficiency/genetics ; DNA Copy Number Variations/genetics ; Disease Progression ; *Evolution, Molecular ; Fusion Proteins, bcr-abl/*genetics ; Genes, p16 ; Humans ; Mice ; Mice, Inbred NOD ; Mice, SCID ; Models, Biological ; Neoplasm Transplantation ; Oligonucleotide Array Sequence Analysis ; Philadelphia Chromosome ; Polymorphism, Single Nucleotide/genetics ; Precursor Cell Lymphoblastic Leukemia-Lymphoma/*genetics/*pathology ; Survival Rate ; Transplantation, Heterologous
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 24
    facet.materialart.
    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2011-06-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ball, Philip -- England -- Nature. 2011 Jun 15;474(7351):272-4. doi: 10.1038/474272a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21677723" target="_blank"〉PubMed〈/a〉
    Keywords: Animal Migration ; Animals ; Birds/physiology ; *Life ; Magnetics ; Models, Biological ; Nature ; Photosynthesis/physiology ; *Quantum Theory
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 25
    Publication Date: 2011-07-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Christoffels, Vincent -- England -- Nature. 2011 Jun 29;474(7353):585-6. doi: 10.1038/474585a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21720359" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Differentiation ; Heart/*physiology ; Humans ; Myocardial Infarction/*pathology ; Myocardium/*cytology ; Pericardium/*cytology ; *Regeneration ; Stem Cells/*cytology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 26
    Publication Date: 2011-02-19
    Description: Daily oscillations of gene expression underlie circadian behaviours in multicellular organisms. While attention has been focused on transcriptional and post-translational mechanisms, other post-transcriptional modes have been less clearly delineated. Here we report mutants of a novel Drosophila gene twenty-four (tyf) that show weak behavioural rhythms. Weak rhythms are accompanied by marked reductions in the levels of the clock protein Period (PER) as well as more modest effects on Timeless (TIM). Nonetheless, PER induction in pacemaker neurons can rescue tyf mutant rhythms. TYF associates with a 5'-cap-binding complex, poly(A)-binding protein (PABP), as well as per and tim transcripts. Furthermore, TYF activates reporter expression when tethered to reporter messenger RNA even in vitro. Taken together, these data indicate that TYF potently activates PER translation in pacemaker neurons to sustain robust rhythms, revealing a new and important role for translational control in the Drosophila circadian clock.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3073513/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3073513/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lim, Chunghun -- Lee, Jongbin -- Choi, Changtaek -- Kilman, Valerie L -- Kim, Juwon -- Park, Sung Mi -- Jang, Sung Key -- Allada, Ravi -- Choe, Joonho -- R01 MH067870/MH/NIMH NIH HHS/ -- R01 MH067870-05/MH/NIMH NIH HHS/ -- R01 NS052903/NS/NINDS NIH HHS/ -- R01 NS052903-04/NS/NINDS NIH HHS/ -- R01 NS059042/NS/NINDS NIH HHS/ -- R01 NS059042-04/NS/NINDS NIH HHS/ -- R01MH067870/MH/NIMH NIH HHS/ -- R01NS052903/NS/NINDS NIH HHS/ -- R01NS059042/NS/NINDS NIH HHS/ -- England -- Nature. 2011 Feb 17;470(7334):399-403. doi: 10.1038/nature09728.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology and Physiology, Northwestern University, Evanston, Illinois 60208, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21331043" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Circadian Clocks/*genetics/physiology ; Circadian Rhythm/genetics/physiology ; Drosophila Proteins/biosynthesis/genetics/*metabolism ; Drosophila melanogaster/*genetics/*physiology ; Genes, Insect/*genetics ; Genes, Reporter/genetics ; Mutation/genetics ; Neurons/metabolism/physiology ; Period Circadian Proteins/*biosynthesis/genetics/metabolism ; Poly(A)-Binding Proteins/metabolism ; Protein Binding ; Protein Biosynthesis/genetics/*physiology ; RNA, Messenger/genetics/metabolism ; Up-Regulation
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 27
    Publication Date: 2011-06-10
    Description: Defects in insulin signalling are among the most common and earliest defects that predispose an individual to the development of type 2 diabetes. MicroRNAs have been identified as a new class of regulatory molecules that influence many biological functions, including metabolism. However, the direct regulation of insulin sensitivity by microRNAs in vivo has not been demonstrated. Here we show that the expression of microRNAs 103 and 107 (miR-103/107) is upregulated in obese mice. Silencing of miR-103/107 leads to improved glucose homeostasis and insulin sensitivity. In contrast, gain of miR-103/107 function in either liver or fat is sufficient to induce impaired glucose homeostasis. We identify caveolin-1, a critical regulator of the insulin receptor, as a direct target gene of miR-103/107. We demonstrate that caveolin-1 is upregulated upon miR-103/107 inactivation in adipocytes and that this is concomitant with stabilization of the insulin receptor, enhanced insulin signalling, decreased adipocyte size and enhanced insulin-stimulated glucose uptake. These findings demonstrate the central importance of miR-103/107 to insulin sensitivity and identify a new target for the treatment of type 2 diabetes and obesity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Trajkovski, Mirko -- Hausser, Jean -- Soutschek, Jurgen -- Bhat, Bal -- Akin, Akinc -- Zavolan, Mihaela -- Heim, Markus H -- Stoffel, Markus -- England -- Nature. 2011 Jun 8;474(7353):649-53. doi: 10.1038/nature10112.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Molecular Systems Biology, ETH Zurich, Wolfgang-Pauli Strasse 16, CH-8093 Zurich, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21654750" target="_blank"〉PubMed〈/a〉
    Keywords: Adipocytes/cytology/metabolism ; Animals ; Caveolin 1/metabolism ; Cell Size ; Diabetes Mellitus, Type 2/physiopathology ; Disease Models, Animal ; Gene Expression ; Gene Expression Regulation ; Gene Silencing ; Glucose/metabolism ; Homeostasis ; Hyperglycemia/physiopathology ; Insulin/*metabolism ; Liver/metabolism ; Male ; Mice ; Mice, Inbred C57BL ; MicroRNAs/genetics/*metabolism ; Signal Transduction ; Up-Regulation
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 28
    Publication Date: 2011-08-16
    Description: Infections localized to peripheral tissues such as the skin result in the priming of T-cell responses that act to control pathogens. Activated T cells undergo migrational imprinting within the draining lymph nodes, resulting in memory T cells that provide local and systemic protection. Combinations of migrating and resident memory T cells have been implicated in long-term peripheral immunity, especially at the surfaces that form pathogen entry points into the body. However, T-cell immunity consists of separate CD4(+) helper T cells and CD8(+) killer T cells, with distinct effector and memory programming requirements. Whether these subsets also differ in their ability to form a migrating pool involved in peripheral immunosurveillance or a separate resident population responsible for local infection control has not been explored. Here, using mice, we show key differences in the migration and tissue localization of memory CD4(+) and CD8(+) T cells following infection of the skin by herpes simplex virus. On resolution of infection, the skin contained two distinct virus-specific memory subsets; a slow-moving population of sequestered CD8(+) T cells that were resident in the epidermis and confined largely to the original site of infection, and a dynamic population of CD4(+) T cells that trafficked rapidly through the dermis as part of a wider recirculation pattern. Unique homing-molecule expression by recirculating CD4(+) T effector-memory cells mirrored their preferential skin-migratory capacity. Overall, these results identify a complexity in memory T-cell migration, illuminating previously unappreciated differences between the CD4(+) and CD8(+) subsets.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gebhardt, Thomas -- Whitney, Paul G -- Zaid, Ali -- Mackay, Laura K -- Brooks, Andrew G -- Heath, William R -- Carbone, Francis R -- Mueller, Scott N -- England -- Nature. 2011 Aug 14;477(7363):216-9. doi: 10.1038/nature10339.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, The University of Melbourne, Melbourne, Victoria 3010, Australia. gebhardt@unimelb.edu.au〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21841802" target="_blank"〉PubMed〈/a〉
    Keywords: Adoptive Transfer ; Animals ; CD4-Positive T-Lymphocytes/*cytology/immunology/metabolism ; CD8-Positive T-Lymphocytes/*cytology/immunology/metabolism ; *Cell Movement ; E-Selectin/metabolism ; Genomic Imprinting ; Herpes Simplex/immunology/virology ; *Immunologic Memory ; Immunologic Surveillance/immunology ; Ligands ; Mice ; P-Selectin/metabolism ; Simplexvirus/immunology ; Skin/cytology/immunology/virology ; T-Lymphocytes, Helper-Inducer/cytology/immunology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 29
    Publication Date: 2011-02-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Saper, Clifford B -- England -- Nature. 2011 Feb 10;470(7333):179-81. doi: 10.1038/470179a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21307926" target="_blank"〉PubMed〈/a〉
    Keywords: Aggression/drug effects/*physiology ; Animals ; Cats ; Electric Stimulation ; Female ; Gene Expression Regulation/genetics ; Genes, fos/genetics ; Humans ; Male ; Mice ; Neural Inhibition/drug effects/genetics/physiology ; Neural Pathways/drug effects/physiology ; Neurons/drug effects/physiology ; Rats ; Sex Characteristics ; Sexual Behavior, Animal/drug effects/physiology ; Time Factors ; Ventromedial Hypothalamic Nucleus/anatomy & histology/*cytology/drug ; effects/*physiology ; Violence
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 30
    Publication Date: 2011-11-15
    Description: Murine epidermal stem cells undergo alternate cycles of dormancy and activation, fuelling tissue renewal. However, only a subset of stem cells becomes active during each round of morphogenesis, indicating that stem cells coexist in heterogeneous responsive states. Using a circadian-clock reporter-mouse model, here we show that the dormant hair-follicle stem cell niche contains coexisting populations of cells at opposite phases of the clock, which are differentially predisposed to respond to homeostatic cues. The core clock protein Bmal1 modulates the expression of stem cell regulatory genes in an oscillatory manner, to create populations that are either predisposed, or less prone, to activation. Disrupting this clock equilibrium, through deletion of Bmal1 (also known as Arntl) or Per1/2, resulted in a progressive accumulation or depletion of dormant stem cells, respectively. Stem cell arrhythmia also led to premature epidermal ageing, and a reduction in the development of squamous tumours. Our results indicate that the circadian clock fine-tunes the temporal behaviour of epidermal stem cells, and that its perturbation affects homeostasis and the predisposition to tumorigenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Janich, Peggy -- Pascual, Gloria -- Merlos-Suarez, Anna -- Batlle, Eduard -- Ripperger, Jurgen -- Albrecht, Urs -- Cheng, Hai-Ying M -- Obrietan, Karl -- Di Croce, Luciano -- Benitah, Salvador Aznar -- England -- Nature. 2011 Nov 9;480(7376):209-14. doi: 10.1038/nature10649.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Genomic Regulation and UPF, 08003 Barcelona, Spain.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22080954" target="_blank"〉PubMed〈/a〉
    Keywords: ARNTL Transcription Factors/deficiency/genetics/metabolism ; Animals ; Carcinoma, Squamous Cell/genetics/pathology ; Cell Adhesion/genetics ; Cell Aging ; Cell Cycle/genetics ; Cells, Cultured ; Circadian Clocks/genetics/*physiology ; Circadian Rhythm/genetics/*physiology ; Cues ; Female ; Gene Expression Regulation/genetics ; Hair Follicle/*cytology ; Homeostasis/genetics/physiology ; Male ; Mice ; Mice, Knockout ; Skin Neoplasms/genetics/pathology ; Stem Cell Niche ; Stem Cells/*cytology/metabolism ; Transforming Growth Factor beta/genetics ; Wnt Signaling Pathway/genetics
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 31
    facet.materialart.
    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2011-04-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pala, Christopher -- England -- Nature. 2011 Mar 31;471(7340):560. doi: 10.1038/471560a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21455149" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Canada/ethnology ; Conservation of Natural Resources/economics/*trends ; Ecosystem ; Forestry/economics/*trends ; Humans ; Population Groups ; Reindeer/physiology ; Risk ; *Trees ; *Wilderness ; Wood
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 32
    facet.materialart.
    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2011-03-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schiermeier, Quirin -- England -- Nature. 2011 Mar 10;471(7337):154-6. doi: 10.1038/471154a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21390106" target="_blank"〉PubMed〈/a〉
    Keywords: Acids/*adverse effects/analysis/chemistry ; Animals ; Aquatic Organisms/chemistry/*drug effects/physiology ; Calcium Carbonate/analysis ; Carbon Dioxide/analysis/chemistry ; *Ecosystem ; Food Chain ; Food Industry ; Hydrogen-Ion Concentration ; Oceans and Seas ; Seawater/*chemistry ; Shellfish/supply & distribution ; Survival Rate
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 33
    Publication Date: 2011-01-14
    Description: In 2007, the Intergovernmental Panel on Climate Change highlighted an urgent need to assess the responses of marine ecosystems to climate change. Because they lie in a high-latitude region, the Southern Ocean ecosystems are expected to be strongly affected by global warming. Using top predators of this highly productive ocean (such as penguins) as integrative indicators may help us assess the impacts of climate change on marine ecosystems. Yet most available information on penguin population dynamics is based on the controversial use of flipper banding. Although some reports have found the effects of flipper bands to be deleterious, some short-term (one-year) studies have concluded otherwise, resulting in the continuation of extensive banding schemes and the use of data sets thus collected to predict climate impact on natural populations. Here we show that banding of free-ranging king penguins (Aptenodytes patagonicus) impairs both survival and reproduction, ultimately affecting population growth rate. Over the course of a 10-year longitudinal study, banded birds produced 41% [corrected] fewer chicks and had a survival rate 16 percentage points [corrected] lower than non-banded birds, demonstrating a massive long-term impact of banding and thus refuting the assumption that birds will ultimately adapt to being banded. Indeed, banded birds still arrived later for breeding at the study site and had longer foraging trips even after 10 years. One of our major findings is that responses of flipper-banded penguins to climate variability (that is, changes in sea surface temperature and in the Southern Oscillation index) differ from those of non-banded birds. We show that only long-term investigations may allow an evaluation of the impact of flipper bands and that every major life-history trait can be affected, calling into question the banding schemes still going on. In addition, our understanding of the effects of climate change on marine ecosystems based on flipper-band data should be reconsidered.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Saraux, Claire -- Le Bohec, Celine -- Durant, Joel M -- Viblanc, Vincent A -- Gauthier-Clerc, Michel -- Beaune, David -- Park, Young-Hyang -- Yoccoz, Nigel G -- Stenseth, Nils C -- Le Maho, Yvon -- England -- Nature. 2011 Jan 13;469(7329):203-6. doi: 10.1038/nature09630.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Universite de Strasbourg, Institut Pluridisciplinaire Hubert Curien, 23 rue Becquerel, 67087 Strasbourg, France. claire.saraux@c-strasbourg.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21228875" target="_blank"〉PubMed〈/a〉
    Keywords: *Animal Identification Systems/ethics ; Animal Welfare/ethics/statistics & numerical data ; Animals ; Antarctic Regions ; *Artifacts ; Climate Change/*statistics & numerical data ; *Ecosystem ; Female ; Longitudinal Studies ; Male ; Oceans and Seas ; Population Dynamics ; Reproduction/physiology ; Seawater/chemistry ; Spheniscidae/growth & development/*physiology ; Survival Rate ; Temperature ; Time Factors
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 34
    Publication Date: 2011-06-17
    Description: Clinical studies consistently demonstrate that a single sub-psychomimetic dose of ketamine, an ionotropic glutamatergic NMDAR (N-methyl-D-aspartate receptor) antagonist, produces fast-acting antidepressant responses in patients suffering from major depressive disorder, although the underlying mechanism is unclear. Depressed patients report the alleviation of major depressive disorder symptoms within two hours of a single, low-dose intravenous infusion of ketamine, with effects lasting up to two weeks, unlike traditional antidepressants (serotonin re-uptake inhibitors), which take weeks to reach efficacy. This delay is a major drawback to current therapies for major depressive disorder and faster-acting antidepressants are needed, particularly for suicide-risk patients. The ability of ketamine to produce rapidly acting, long-lasting antidepressant responses in depressed patients provides a unique opportunity to investigate underlying cellular mechanisms. Here we show that ketamine and other NMDAR antagonists produce fast-acting behavioural antidepressant-like effects in mouse models, and that these effects depend on the rapid synthesis of brain-derived neurotrophic factor. We find that the ketamine-mediated blockade of NMDAR at rest deactivates eukaryotic elongation factor 2 (eEF2) kinase (also called CaMKIII), resulting in reduced eEF2 phosphorylation and de-suppression of translation of brain-derived neurotrophic factor. Furthermore, we find that inhibitors of eEF2 kinase induce fast-acting behavioural antidepressant-like effects. Our findings indicate that the regulation of protein synthesis by spontaneous neurotransmission may serve as a viable therapeutic target for the development of fast-acting antidepressants.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3172695/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3172695/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Autry, Anita E -- Adachi, Megumi -- Nosyreva, Elena -- Na, Elisa S -- Los, Maarten F -- Cheng, Peng-fei -- Kavalali, Ege T -- Monteggia, Lisa M -- MH066198/MH/NIMH NIH HHS/ -- MH070727/MH/NIMH NIH HHS/ -- R01 MH066198/MH/NIMH NIH HHS/ -- R01 MH066198-07/MH/NIMH NIH HHS/ -- R01 MH066198-08/MH/NIMH NIH HHS/ -- T32 MH 76690-02/MH/NIMH NIH HHS/ -- England -- Nature. 2011 Jun 15;475(7354):91-5. doi: 10.1038/nature10130.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychiatry, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, Texas 75390-9111, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21677641" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antidepressive Agents/*pharmacology ; Behavior, Animal/drug effects/physiology ; Brain-Derived Neurotrophic Factor/biosynthesis/deficiency/genetics/pharmacology ; Depression/drug therapy ; Disease Models, Animal ; Dizocilpine Maleate/pharmacology ; Elongation Factor 2 Kinase/metabolism ; Gene Expression Regulation/drug effects ; Ketamine/*pharmacology ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Phosphorylation/drug effects ; Piperazines/pharmacology ; Protein Biosynthesis/drug effects ; Receptors, N-Methyl-D-Aspartate/*antagonists & inhibitors/metabolism ; Rest/*physiology ; Suicide/prevention & control ; Synapses/drug effects/metabolism ; Synaptic Transmission/drug effects ; Time Factors
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 35
    Publication Date: 2011-07-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lockwood, Julie L -- Hoopes, Martha F -- Marchetti, Michael P -- England -- Nature. 2011 Jul 6;475(7354):36. doi: 10.1038/475036c.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21734691" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Ecology/methods ; *Endangered Species
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 36
    Publication Date: 2011-08-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Legg, David A -- Ma, Xiaoya -- Wolfe, Joanna M -- Ortega-Hernandez, Javier -- Edgecombe, Gregory D -- Sutton, Mark D -- England -- Nature. 2011 Aug 10;476(7359):E2-3; discussion E3-4. doi: 10.1038/nature10267.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Earth Science and Engineering, Imperial College London, London SW7 2AZ UK. d.legg10@imperial.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21833046" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arthropods/anatomy & histology/*classification ; Fossils ; *Phylogeny ; Pseudopodia/*classification ; Reproducibility of Results
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 37
    facet.materialart.
    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2011-03-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fuyuno, Ichiko -- England -- Nature. 2011 Mar 24;471(7339):420. doi: 10.1038/471420a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21430744" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Laboratory ; *Earthquakes/mortality ; Emigration and Immigration/statistics & numerical data ; Expeditions ; Japan ; Laboratories/manpower/organization & administration ; Research Personnel/statistics & numerical data ; Science/manpower/*organization & administration ; Ships ; *Tsunamis ; Universities/manpower/organization & administration
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 38
    Publication Date: 2011-07-22
    Description: Cellular responses to mechanical forces are crucial in embryonic development and adult physiology, and are involved in numerous diseases, including atherosclerosis, hypertension, osteoporosis, muscular dystrophy, myopathies and cancer. These responses are mediated by load-bearing subcellular structures, such as the plasma membrane, cell-adhesion complexes and the cytoskeleton. Recent work has demonstrated that these structures are dynamic, undergoing assembly, disassembly and movement, even when ostensibly stable. An emerging insight is that transduction of forces into biochemical signals occurs within the context of these processes. This framework helps to explain how forces of varying strengths or dynamic characteristics regulate distinct signalling pathways.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hoffman, Brenton D -- Grashoff, Carsten -- Schwartz, Martin A -- R01 HL075092/HL/NHLBI NIH HHS/ -- England -- Nature. 2011 Jul 20;475(7356):316-23. doi: 10.1038/nature10316.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, Virginia 22908, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21776077" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biophysical Phenomena ; Humans ; Mechanotransduction, Cellular/*physiology ; *Models, Biological ; Subcellular Fractions/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 39
    facet.materialart.
    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2011-01-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ruxton, Graeme D -- England -- Nature. 2011 Jan 27;469(7331):481. doi: 10.1038/469481a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21270885" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Body Size/*physiology ; Body Temperature Regulation ; Swimming ; Whales/*physiology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 40
    Publication Date: 2011-02-18
    Description: Many species are projected to become vulnerable to twenty-first-century climate changes, with consequent effects on the tree of life. If losses were not randomly distributed across the tree of life, climate change could lead to a disproportionate loss of evolutionary history. Here we estimate the consequences of climate change on the phylogenetic diversities of plant, bird and mammal assemblages across Europe. Using a consensus across ensembles of forecasts for 2020, 2050 and 2080 and high-resolution phylogenetic trees, we show that species vulnerability to climate change clusters weakly across phylogenies. Such phylogenetic signal in species vulnerabilities does not lead to higher loss of evolutionary history than expected with a model of random extinctions. This is because vulnerable species have neither fewer nor closer relatives than the remaining clades. Reductions in phylogenetic diversity will be greater in southern Europe, and gains are expected in regions of high latitude or altitude. However, losses will not be offset by gains and the tree of life faces a trend towards homogenization across the continent.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thuiller, Wilfried -- Lavergne, Sebastien -- Roquet, Cristina -- Boulangeat, Isabelle -- Lafourcade, Bruno -- Araujo, Miguel B -- England -- Nature. 2011 Feb 24;470(7335):531-4. doi: 10.1038/nature09705. Epub 2011 Feb 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratoire d'Ecologie Alpine, UMR CNRS 5553, Universite Joseph Fourier, BP 53, FR-38041 Grenoble Cedex 9, France. wilfried.thuiller@ujf-grenoble.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21326204" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; *Birds ; *Climate Change ; Europe ; *Extinction, Biological ; Human Activities ; *Mammals ; Models, Theoretical ; *Phylogeny ; *Plants ; Species Specificity
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 41
    facet.materialart.
    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2011-12-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Alford, Ross A -- England -- Nature. 2011 Dec 21;480(7378):461-2. doi: 10.1038/480461a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22193094" target="_blank"〉PubMed〈/a〉
    Keywords: Amphibians/*physiology ; Animals ; *Biodiversity ; *Climate Change ; *Models, Biological ; Mycoses/*mortality
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 42
    Publication Date: 2011-08-26
    Description: Genetic manipulations of insect populations for pest control have been advocated for some time, but there are few cases where manipulated individuals have been released in the field and no cases where they have successfully invaded target populations. Population transformation using the intracellular bacterium Wolbachia is particularly attractive because this maternally-inherited agent provides a powerful mechanism to invade natural populations through cytoplasmic incompatibility. When Wolbachia are introduced into mosquitoes, they interfere with pathogen transmission and influence key life history traits such as lifespan. Here we describe how the wMel Wolbachia infection, introduced into the dengue vector Aedes aegypti from Drosophila melanogaster, successfully invaded two natural A. aegypti populations in Australia, reaching near-fixation in a few months following releases of wMel-infected A. aegypti adults. Models with plausible parameter values indicate that Wolbachia-infected mosquitoes suffered relatively small fitness costs, leading to an unstable equilibrium frequency 〈30% that must be exceeded for invasion. These findings demonstrate that Wolbachia-based strategies can be deployed as a practical approach to dengue suppression with potential for area-wide implementation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hoffmann, A A -- Montgomery, B L -- Popovici, J -- Iturbe-Ormaetxe, I -- Johnson, P H -- Muzzi, F -- Greenfield, M -- Durkan, M -- Leong, Y S -- Dong, Y -- Cook, H -- Axford, J -- Callahan, A G -- Kenny, N -- Omodei, C -- McGraw, E A -- Ryan, P A -- Ritchie, S A -- Turelli, M -- O'Neill, S L -- England -- Nature. 2011 Aug 24;476(7361):454-7. doi: 10.1038/nature10356.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Bio21 Institute, Department of Genetics, The University of Melbourne, Victoria 3010, Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21866160" target="_blank"〉PubMed〈/a〉
    Keywords: Aedes/*microbiology/physiology/*virology ; Animals ; Dengue/microbiology/*prevention & control/*transmission/virology ; Dengue Virus/isolation & purification/*physiology ; Drosophila melanogaster/microbiology ; Female ; Humans ; Insect Vectors/microbiology/physiology/virology ; Male ; Pest Control, Biological/*methods ; Queensland ; Time Factors ; Wolbachia/isolation & purification/*physiology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 43
    Publication Date: 2011-03-04
    Description: Palaeontologists characterize mass extinctions as times when the Earth loses more than three-quarters of its species in a geologically short interval, as has happened only five times in the past 540 million years or so. Biologists now suggest that a sixth mass extinction may be under way, given the known species losses over the past few centuries and millennia. Here we review how differences between fossil and modern data and the addition of recently available palaeontological information influence our understanding of the current extinction crisis. Our results confirm that current extinction rates are higher than would be expected from the fossil record, highlighting the need for effective conservation measures.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barnosky, Anthony D -- Matzke, Nicholas -- Tomiya, Susumu -- Wogan, Guinevere O U -- Swartz, Brian -- Quental, Tiago B -- Marshall, Charles -- McGuire, Jenny L -- Lindsey, Emily L -- Maguire, Kaitlin C -- Mersey, Ben -- Ferrer, Elizabeth A -- R01 GM069801/GM/NIGMS NIH HHS/ -- England -- Nature. 2011 Mar 3;471(7336):51-7. doi: 10.1038/nature09678.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Integrative Biology, University of California, Berkeley, California 94720, USA. barnosky@berkeley.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21368823" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; Conservation of Natural Resources/methods/trends ; Earth (Planet) ; Endangered Species/history/*statistics & numerical data/trends ; *Extinction, Biological ; Fossils ; History, 21st Century ; History, Ancient ; Human Activities ; Humans
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 44
    Publication Date: 2011-10-07
    Description: Brain-machine interfaces use neuronal activity recorded from the brain to establish direct communication with external actuators, such as prosthetic arms. It is hoped that brain-machine interfaces can be used to restore the normal sensorimotor functions of the limbs, but so far they have lacked tactile sensation. Here we report the operation of a brain-machine-brain interface (BMBI) that both controls the exploratory reaching movements of an actuator and allows signalling of artificial tactile feedback through intracortical microstimulation (ICMS) of the primary somatosensory cortex. Monkeys performed an active exploration task in which an actuator (a computer cursor or a virtual-reality arm) was moved using a BMBI that derived motor commands from neuronal ensemble activity recorded in the primary motor cortex. ICMS feedback occurred whenever the actuator touched virtual objects. Temporal patterns of ICMS encoded the artificial tactile properties of each object. Neuronal recordings and ICMS epochs were temporally multiplexed to avoid interference. Two monkeys operated this BMBI to search for and distinguish one of three visually identical objects, using the virtual-reality arm to identify the unique artificial texture associated with each. These results suggest that clinical motor neuroprostheses might benefit from the addition of ICMS feedback to generate artificial somatic perceptions associated with mechanical, robotic or even virtual prostheses.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3236080/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3236080/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉O'Doherty, Joseph E -- Lebedev, Mikhail A -- Ifft, Peter J -- Zhuang, Katie Z -- Shokur, Solaiman -- Bleuler, Hannes -- Nicolelis, Miguel A L -- DP1 MH099903/MH/NIMH NIH HHS/ -- DP1 OD006798/OD/NIH HHS/ -- DP1 OD006798-01/OD/NIH HHS/ -- DP1OD006798/OD/NIH HHS/ -- NS073125/NS/NINDS NIH HHS/ -- R01 NS073125/NS/NINDS NIH HHS/ -- R01 NS073125-01/NS/NINDS NIH HHS/ -- RC1 HD063390/HD/NICHD NIH HHS/ -- RC1 HD063390-01/HD/NICHD NIH HHS/ -- RC1HD063390/HD/NICHD NIH HHS/ -- England -- Nature. 2011 Oct 5;479(7372):228-31. doi: 10.1038/nature10489.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21976021" target="_blank"〉PubMed〈/a〉
    Keywords: Algorithms ; Animals ; Artificial Limbs ; Brain/*physiology ; Feedback ; Macaca mulatta/*physiology ; *Man-Machine Systems ; Psychometrics ; Reward ; Somatosensory Cortex/physiology ; Touch/*physiology ; *User-Computer Interface
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 45
    Publication Date: 2011-10-14
    Description: The comparison of related genomes has emerged as a powerful lens for genome interpretation. Here we report the sequencing and comparative analysis of 29 eutherian genomes. We confirm that at least 5.5% of the human genome has undergone purifying selection, and locate constrained elements covering approximately 4.2% of the genome. We use evolutionary signatures and comparisons with experimental data sets to suggest candidate functions for approximately 60% of constrained bases. These elements reveal a small number of new coding exons, candidate stop codon readthrough events and over 10,000 regions of overlapping synonymous constraint within protein-coding exons. We find 220 candidate RNA structural families, and nearly a million elements overlapping potential promoter, enhancer and insulator regions. We report specific amino acid residues that have undergone positive selection, 280,000 non-coding elements exapted from mobile elements and more than 1,000 primate- and human-accelerated elements. Overlap with disease-associated variants indicates that our findings will be relevant for studies of human biology, health and disease.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3207357/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3207357/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lindblad-Toh, Kerstin -- Garber, Manuel -- Zuk, Or -- Lin, Michael F -- Parker, Brian J -- Washietl, Stefan -- Kheradpour, Pouya -- Ernst, Jason -- Jordan, Gregory -- Mauceli, Evan -- Ward, Lucas D -- Lowe, Craig B -- Holloway, Alisha K -- Clamp, Michele -- Gnerre, Sante -- Alfoldi, Jessica -- Beal, Kathryn -- Chang, Jean -- Clawson, Hiram -- Cuff, James -- Di Palma, Federica -- Fitzgerald, Stephen -- Flicek, Paul -- Guttman, Mitchell -- Hubisz, Melissa J -- Jaffe, David B -- Jungreis, Irwin -- Kent, W James -- Kostka, Dennis -- Lara, Marcia -- Martins, Andre L -- Massingham, Tim -- Moltke, Ida -- Raney, Brian J -- Rasmussen, Matthew D -- Robinson, Jim -- Stark, Alexander -- Vilella, Albert J -- Wen, Jiayu -- Xie, Xiaohui -- Zody, Michael C -- Broad Institute Sequencing Platform and Whole Genome Assembly Team -- Baldwin, Jen -- Bloom, Toby -- Chin, Chee Whye -- Heiman, Dave -- Nicol, Robert -- Nusbaum, Chad -- Young, Sarah -- Wilkinson, Jane -- Worley, Kim C -- Kovar, Christie L -- Muzny, Donna M -- Gibbs, Richard A -- Baylor College of Medicine Human Genome Sequencing Center Sequencing Team -- Cree, Andrew -- Dihn, Huyen H -- Fowler, Gerald -- Jhangiani, Shalili -- Joshi, Vandita -- Lee, Sandra -- Lewis, Lora R -- Nazareth, Lynne V -- Okwuonu, Geoffrey -- Santibanez, Jireh -- Warren, Wesley C -- Mardis, Elaine R -- Weinstock, George M -- Wilson, Richard K -- Genome Institute at Washington University -- Delehaunty, Kim -- Dooling, David -- Fronik, Catrina -- Fulton, Lucinda -- Fulton, Bob -- Graves, Tina -- Minx, Patrick -- Sodergren, Erica -- Birney, Ewan -- Margulies, Elliott H -- Herrero, Javier -- Green, Eric D -- Haussler, David -- Siepel, Adam -- Goldman, Nick -- Pollard, Katherine S -- Pedersen, Jakob S -- Lander, Eric S -- Kellis, Manolis -- 095908/Wellcome Trust/United Kingdom -- GM82901/GM/NIGMS NIH HHS/ -- R01 HG003474/HG/NHGRI NIH HHS/ -- R01 HG004037/HG/NHGRI NIH HHS/ -- U54 HG003067/HG/NHGRI NIH HHS/ -- U54 HG003067-09/HG/NHGRI NIH HHS/ -- U54 HG003273/HG/NHGRI NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2011 Oct 12;478(7370):476-82. doi: 10.1038/nature10530.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Broad Institute of Harvard and Massachusetts Institute of Technology, 7 Cambridge Center, Cambridge, Massachusetts 02142, USA. kersli@broadinstitute.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21993624" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Disease ; *Evolution, Molecular ; Exons/genetics ; Genome/*genetics ; Genome, Human/*genetics ; Genomics ; Health ; Humans ; Mammals/*genetics ; Molecular Sequence Annotation ; Phylogeny ; RNA/classification/genetics ; Selection, Genetic/genetics ; Sequence Alignment ; Sequence Analysis, DNA
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 46
    Publication Date: 2011-02-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Aziz, Tipu -- Stein, John -- Yogeshwar, Ranga -- England -- Nature. 2011 Feb 24;470(7335):457-9. doi: 10.1038/470457a.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurosurgery, John Radcliffe Hospital, Oxford OX3 9DU, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21350463" target="_blank"〉PubMed〈/a〉
    Keywords: *Animal Experimentation/ethics/legislation & jurisprudence/standards ; Animal Rights/standards ; Animals ; Communication ; Emotions ; Facility Design and Construction ; Great Britain ; Housing, Animal ; Humans ; Parkinson Disease ; *Public Relations ; *Research Personnel ; Television/*utilization ; Terrorism/legislation & jurisprudence/prevention & control
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 47
    Publication Date: 2011-06-10
    Description: Haematopoietic stem cells (HSCs) are a self-renewing population of cells that continuously replenish all blood and immune cells during the lifetime of an individual. HSCs are used clinically to treat a wide array of diseases, including acute leukaemias and congenital blood disorders, but obtaining suitable numbers of cells and finding immune-compatible donors remain serious problems. These difficulties have led to an interest in the conversion of embryonic stem cells or induced pluripotent stem cells into HSCs, which is not possible using current methodologies. To accomplish this goal, it is critical to understand the native mechanisms involved in the specification of HSCs during embryonic development. Here we demonstrate in zebrafish that Wnt16 controls a novel genetic regulatory network required for HSC specification. Non-canonical signalling by Wnt16 is required for somitic expression of the Notch ligands deltaC (dlc) and deltaD (dld), and these ligands are, in turn, required for the establishment of definitive haematopoiesis. Notch signalling downstream of Dlc and Dld is earlier than, and distinct from, known cell-autonomous requirements for Notch, strongly suggesting that novel Notch-dependent relay signal(s) induce the first HSCs in parallel to other established pathways. Our results demonstrate that somite-specific gene expression is required for the production of haemogenic endothelium.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3304471/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3304471/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Clements, Wilson K -- Kim, Albert D -- Ong, Karen G -- Moore, John C -- Lawson, Nathan D -- Traver, David -- R01 DK074482/DK/NIDDK NIH HHS/ -- R01 DK074482-05/DK/NIDDK NIH HHS/ -- R01-DK074482/DK/NIDDK NIH HHS/ -- R01-HL093467/HL/NHLBI NIH HHS/ -- England -- Nature. 2011 Jun 8;474(7350):220-4. doi: 10.1038/nature10107.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cellular and Molecular Medicine and Section of Cell and Developmental Biology, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093-0380, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21654806" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cell Differentiation ; Cell Lineage ; Hematopoiesis ; Hematopoietic Stem Cells/*cytology/*metabolism ; Intracellular Signaling Peptides and Proteins ; Ligands ; Membrane Proteins/metabolism ; Nerve Tissue Proteins/metabolism ; Phenotype ; Receptors, Notch/*metabolism ; *Signal Transduction ; Somites/cytology/*metabolism ; Wnt Proteins/deficiency/genetics/*metabolism ; Zebrafish/*metabolism ; Zebrafish Proteins/deficiency/genetics/*metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 48
    Publication Date: 2011-09-09
    Description: Mutations in the tumour suppressor gene BRCA1 lead to breast and/or ovarian cancer. Here we show that loss of Brca1 in mice results in transcriptional de-repression of the tandemly repeated satellite DNA. Brca1 deficiency is accompanied by a reduction of condensed DNA regions in the genome and loss of ubiquitylation of histone H2A at satellite repeats. BRCA1 binds to satellite DNA regions and ubiquitylates H2A in vivo. Ectopic expression of H2A fused to ubiquitin reverses the effects of BRCA1 loss, indicating that BRCA1 maintains heterochromatin structure via ubiquitylation of histone H2A. Satellite DNA de-repression was also observed in mouse and human BRCA1-deficient breast cancers. Ectopic expression of satellite DNA can phenocopy BRCA1 loss in centrosome amplification, cell-cycle checkpoint defects, DNA damage and genomic instability. We propose that the role of BRCA1 in maintaining global heterochromatin integrity accounts for many of its tumour suppressor functions.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3240576/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3240576/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhu, Quan -- Pao, Gerald M -- Huynh, Alexis M -- Suh, Hoonkyo -- Tonnu, Nina -- Nederlof, Petra M -- Gage, Fred H -- Verma, Inder M -- NS50217/NS/NINDS NIH HHS/ -- NS52842/NS/NINDS NIH HHS/ -- R01 NS050217/NS/NINDS NIH HHS/ -- R01 NS050217-05/NS/NINDS NIH HHS/ -- R01 NS052842/NS/NINDS NIH HHS/ -- R01 NS052842-04/NS/NINDS NIH HHS/ -- England -- Nature. 2011 Sep 7;477(7363):179-84. doi: 10.1038/nature10371.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Genetics, The Salk Institute for Biological Studies, La Jolla, California 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21901007" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; BRCA1 Protein/deficiency/genetics/*metabolism ; Breast/cytology ; Breast Neoplasms/*genetics/pathology ; Cell Line, Tumor ; Cells, Cultured ; DNA, Satellite/genetics ; Epithelial Cells/metabolism ; Female ; Gene Expression Regulation, Neoplastic ; *Gene Silencing ; Genes, BRCA1/*physiology ; Genomic Instability/genetics ; HeLa Cells ; Heterochromatin/*genetics/*metabolism ; Histones/metabolism ; Humans ; Mice ; Ovarian Neoplasms/genetics ; RNA, Messenger/genetics ; Transcription, Genetic/genetics ; Ubiquitin-Protein Ligases/metabolism ; Ubiquitinated Proteins/metabolism ; Ubiquitination
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 49
    Publication Date: 2011-06-10
    Description: The ability of insects to learn and navigate to specific locations in the environment has fascinated naturalists for decades. The impressive navigational abilities of ants, bees, wasps and other insects demonstrate that insects are capable of visual place learning, but little is known about the underlying neural circuits that mediate these behaviours. Drosophila melanogaster (common fruit fly) is a powerful model organism for dissecting the neural circuitry underlying complex behaviours, from sensory perception to learning and memory. Drosophila can identify and remember visual features such as size, colour and contour orientation. However, the extent to which they use vision to recall specific locations remains unclear. Here we describe a visual place learning platform and demonstrate that Drosophila are capable of forming and retaining visual place memories to guide selective navigation. By targeted genetic silencing of small subsets of cells in the Drosophila brain, we show that neurons in the ellipsoid body, but not in the mushroom bodies, are necessary for visual place learning. Together, these studies reveal distinct neuroanatomical substrates for spatial versus non-spatial learning, and establish Drosophila as a powerful model for the study of spatial memories.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3169673/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3169673/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ofstad, Tyler A -- Zuker, Charles S -- Reiser, Michael B -- Howard Hughes Medical Institute/ -- England -- Nature. 2011 Jun 8;474(7350):204-7. doi: 10.1038/nature10131.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Janelia Farm Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21654803" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/cytology/physiology ; Conditioning (Psychology)/physiology ; Cues ; Drosophila melanogaster/anatomy & histology/cytology/*physiology ; Female ; Glass ; Learning/*physiology ; Locomotion/physiology ; Memory/physiology ; Models, Animal ; Models, Neurological ; Mushroom Bodies ; Odors ; Orientation/physiology ; Silicon Dioxide ; Temperature ; Time Factors ; Visual Perception/*physiology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 50
    Publication Date: 2011-01-29
    Description: We report that, in the rat, administering insulin-like growth factor II (IGF-II, also known as IGF2) significantly enhances memory retention and prevents forgetting. Inhibitory avoidance learning leads to an increase in hippocampal expression of IGF-II, which requires the transcription factor CCAAT enhancer binding protein beta and is essential for memory consolidation. Furthermore, injections of recombinant IGF-II into the hippocampus after either training or memory retrieval significantly enhance memory retention and prevent forgetting. To be effective, IGF-II needs to be administered within a sensitive period of memory consolidation. IGF-II-dependent memory enhancement requires IGF-II receptors, new protein synthesis, the function of activity-regulated cytoskeletal-associated protein and glycogen-synthase kinase 3 (GSK3). Moreover, it correlates with a significant activation of synaptic GSK3beta and increased expression of GluR1 (also known as GRIA1) alpha-amino-3-hydroxy-5-methyl-4-isoxasolepropionic acid receptor subunits. In hippocampal slices, IGF-II promotes IGF-II receptor-dependent, persistent long-term potentiation after weak synaptic stimulation. Thus, IGF-II may represent a novel target for cognitive enhancement therapies.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3908455/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3908455/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Dillon Y -- Stern, Sarah A -- Garcia-Osta, Ana -- Saunier-Rebori, Bernadette -- Pollonini, Gabriella -- Bambah-Mukku, Dhananjay -- Blitzer, Robert D -- Alberini, Cristina M -- F31-MH816213/MH/NIMH NIH HHS/ -- R01 MH065635/MH/NIMH NIH HHS/ -- R01 MH074736/MH/NIMH NIH HHS/ -- R01-GM054508/GM/NIGMS NIH HHS/ -- R01-MH065635/MH/NIMH NIH HHS/ -- R01-MH074736/MH/NIMH NIH HHS/ -- R21-DA29298/DA/NIDA NIH HHS/ -- T32 MH087004/MH/NIMH NIH HHS/ -- T32-MH087004/MH/NIMH NIH HHS/ -- England -- Nature. 2011 Jan 27;469(7331):491-7. doi: 10.1038/nature09667.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroscience, Mount Sinai School of Medicine, New York, New York 10029, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21270887" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; CCAAT-Enhancer-Binding Protein-beta/metabolism ; Gene Expression Regulation ; Hippocampus/drug effects/*metabolism ; Insulin-Like Growth Factor II/*metabolism/pharmacology ; Long-Term Potentiation/physiology ; Male ; Memory/drug effects/*physiology ; Rats ; Rats, Long-Evans ; Time Factors
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 51
    Publication Date: 2011-10-28
    Description: Parasitic diseases have a devastating, long-term impact on human health, welfare and food production worldwide. More than two billion people are infected with geohelminths, including the roundworms Ascaris (common roundworm), Necator and Ancylostoma (hookworms), and Trichuris (whipworm), mainly in developing or impoverished nations of Asia, Africa and Latin America. In humans, the diseases caused by these parasites result in about 135,000 deaths annually, with a global burden comparable with that of malaria or tuberculosis in disability-adjusted life years. Ascaris alone infects around 1.2 billion people and, in children, causes nutritional deficiency, impaired physical and cognitive development and, in severe cases, death. Ascaris also causes major production losses in pigs owing to reduced growth, failure to thrive and mortality. The Ascaris-swine model makes it possible to study the parasite, its relationship with the host, and ascariasis at the molecular level. To enable such molecular studies, we report the 273 megabase draft genome of Ascaris suum and compare it with other nematode genomes. This genome has low repeat content (4.4%) and encodes about 18,500 protein-coding genes. Notably, the A. suum secretome (about 750 molecules) is rich in peptidases linked to the penetration and degradation of host tissues, and an assemblage of molecules likely to modulate or evade host immune responses. This genome provides a comprehensive resource to the scientific community and underpins the development of new and urgently needed interventions (drugs, vaccines and diagnostic tests) against ascariasis and other nematodiases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jex, Aaron R -- Liu, Shiping -- Li, Bo -- Young, Neil D -- Hall, Ross S -- Li, Yingrui -- Yang, Linfeng -- Zeng, Na -- Xu, Xun -- Xiong, Zijun -- Chen, Fangyuan -- Wu, Xuan -- Zhang, Guojie -- Fang, Xiaodong -- Kang, Yi -- Anderson, Garry A -- Harris, Todd W -- Campbell, Bronwyn E -- Vlaminck, Johnny -- Wang, Tao -- Cantacessi, Cinzia -- Schwarz, Erich M -- Ranganathan, Shoba -- Geldhof, Peter -- Nejsum, Peter -- Sternberg, Paul W -- Yang, Huanming -- Wang, Jun -- Wang, Jian -- Gasser, Robin B -- Howard Hughes Medical Institute/ -- England -- Nature. 2011 Oct 26;479(7374):529-33. doi: 10.1038/nature10553.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Faculty of Veterinary Science, The University of Melbourne, Parkville, Victoria 3010, Australia. ajex@unimelb.edu.au〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22031327" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antinematodal Agents ; Ascariasis/drug therapy/parasitology ; Ascaris suum/drug effects/*genetics ; Drug Design ; Genes, Helminth/genetics ; Genome, Helminth/*genetics ; Genomics ; Molecular Sequence Annotation ; Molecular Targeted Therapy
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 52
    Publication Date: 2011-08-23
    Description: Rapid and efficient removal of apoptotic cells by phagocytes is important during development, tissue homeostasis and in immune responses. Efficient clearance depends on the capacity of a single phagocyte to ingest multiple apoptotic cells successively, and to process the corpse-derived cellular material. However, the factors that influence continued clearance by phagocytes are not known. Here we show that the mitochondrial membrane potential of the phagocyte critically controls engulfment capacity, with lower potential enhancing engulfment and vice versa. The mitochondrial membrane protein Ucp2, which acts to lower the mitochondrial membrane potential, was upregulated in phagocytes engulfing apoptotic cells. Loss of Ucp2 reduced phagocytic capacity, whereas Ucp2 overexpression enhanced engulfment. Mutational and pharmacological studies indicated a direct role for Ucp2-mediated mitochondrial function in phagocytosis. Macrophages from Ucp2-deficient mice were impaired in phagocytosis in vitro, and Ucp2-deficient mice showed profound in vivo defects in clearing dying cells in the thymus and testes. Collectively, these data indicate that mitochondrial membrane potential and Ucp2 are key molecular determinants of apoptotic cell clearance. As Ucp2 is linked to metabolic diseases and atherosclerosis, this newly discovered role for Ucp2 in apoptotic cell clearance has implications for the complex aetiology and pathogenesis of these diseases.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3513690/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3513690/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Park, Daeho -- Han, Claudia Z -- Elliott, Michael R -- Kinchen, Jason M -- Trampont, Paul C -- Das, Soumita -- Collins, Sheila -- Lysiak, Jeffrey J -- Hoehn, Kyle L -- Ravichandran, Kodi S -- R01 GM064709/GM/NIGMS NIH HHS/ -- R01 HD057242/HD/NICHD NIH HHS/ -- T32 GM008136/GM/NIGMS NIH HHS/ -- England -- Nature. 2011 Aug 21;477(7363):220-4. doi: 10.1038/nature10340.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Cell Clearance, University of Virginia, Charlottesville, Virginia 22908, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21857682" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Apoptosis ; Cell Line ; Cell Size/drug effects ; Cells, Cultured ; Ion Channels/deficiency/genetics/*metabolism ; Membrane Potential, Mitochondrial/drug effects/physiology ; Mice ; Mitochondrial Proteins/deficiency/genetics/*metabolism ; Phagocytes/*cytology/drug effects/*metabolism ; Phagocytosis/drug effects/*physiology ; Thymus Gland/cytology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 53
    facet.materialart.
    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2011-12-24
    Description: 〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3971995/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3971995/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bass, Joseph -- R01 DK090625/DK/NIDDK NIH HHS/ -- R01 HL097817/HL/NHLBI NIH HHS/ -- England -- Nature. 2011 Dec 21;480(7378):466-7. doi: 10.1038/480466a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22193099" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Circadian Rhythm ; Cryptochromes/*metabolism ; Female ; *Gene Expression Regulation ; Humans ; Receptors, Glucocorticoid/*metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 54
    Publication Date: 2011-07-19
    Description: Intrinsically photosensitive retinal ganglion cells (ipRGCs) express the photopigment melanopsin and regulate a wide array of light-dependent physiological processes. Genetic ablation of ipRGCs eliminates circadian photoentrainment and severely disrupts the pupillary light reflex (PLR). Here we show that ipRGCs consist of distinct subpopulations that differentially express the Brn3b transcription factor, and can be functionally distinguished. Brn3b-negative M1 ipRGCs innervate the suprachiasmatic nucleus (SCN) of the hypothalamus, whereas Brn3b-positive ipRGCs innervate all other known brain targets, including the olivary pretectal nucleus. Consistent with these innervation patterns, selective ablation of Brn3b-positive ipRGCs severely disrupts the PLR, but does not impair circadian photoentrainment. Thus, we find that molecularly distinct subpopulations of M1 ipRGCs, which are morphologically and electrophysiologically similar, innervate different brain regions to execute specific light-induced functions.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3150726/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3150726/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, S-K -- Badea, T C -- Hattar, S -- GM076430/GM/NIGMS NIH HHS/ -- R01 GM076430/GM/NIGMS NIH HHS/ -- R01 GM076430-01/GM/NIGMS NIH HHS/ -- R01 GM076430-02/GM/NIGMS NIH HHS/ -- R01 GM076430-03/GM/NIGMS NIH HHS/ -- R01 GM076430-03S1/GM/NIGMS NIH HHS/ -- R01 GM076430-04/GM/NIGMS NIH HHS/ -- R01 GM076430-05/GM/NIGMS NIH HHS/ -- R01 GM076430-06/GM/NIGMS NIH HHS/ -- R01 GM076430-07/GM/NIGMS NIH HHS/ -- England -- Nature. 2011 Jul 17;476(7358):92-5. doi: 10.1038/nature10206.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Johns Hopkins University, Baltimore, Maryland 21218, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21765429" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Circadian Rhythm/genetics/*physiology/*radiation effects ; Homeodomain Proteins/metabolism ; Male ; Mice ; Models, Neurological ; Olivary Nucleus/metabolism ; Reflex, Pupillary/genetics/*physiology/*radiation effects ; Retinal Ganglion Cells/cytology/*physiology/*radiation effects ; Rod Opsins/genetics/metabolism ; Suprachiasmatic Nucleus/metabolism ; Transcription Factor Brn-3B/deficiency/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 55
    Publication Date: 2011-05-20
    Description: Aortic aneurysm is common, accounting for 1-2% of all deaths in industrialized countries. Early theories of the causes of human aneurysm mostly focused on inherited or acquired defects in components of the extracellular matrix in the aorta. Although several mutations in the genes encoding extracellular matrix proteins have been recognized, more recent discoveries have shown important perturbations in cytokine signalling cascades and intracellular components of the smooth muscle contractile apparatus. The modelling of single-gene heritable aneurysm disorders in mice has shown unexpected involvement of the transforming growth factor-beta cytokine pathway in aortic aneurysm, highlighting the potential for new therapeutic strategies.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3622871/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3622871/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lindsay, Mark E -- Dietz, Harry C -- K08 HL107738/HL/NHLBI NIH HHS/ -- R01 AR041135/AR/NIAMS NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2011 May 19;473(7347):308-16. doi: 10.1038/nature10145.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Pediatric Cardiology, Department of Pediatrics, Johns Hopkins Medical Institutions, Baltimore, Maryland 21205-1832, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21593863" target="_blank"〉PubMed〈/a〉
    Keywords: Angiotensin II/metabolism ; Animals ; Aortic Aneurysm/complications/*genetics/*pathology/therapy ; Disease Models, Animal ; Elastin/metabolism ; Humans ; Muscle, Smooth, Vascular/pathology ; Transforming Growth Factor beta/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 56
    Publication Date: 2011-11-01
    Description: Endocycles are variant cell cycles comprised of DNA synthesis (S)- and gap (G)-phases but lacking mitosis. Such cycles facilitate post-mitotic growth in many invertebrate and plant cells, and are so ubiquitous that they may account for up to half the world's biomass. DNA replication in endocycling Drosophila cells is triggered by cyclin E/cyclin dependent kinase 2 (CYCE/CDK2), but this kinase must be inactivated during each G-phase to allow the assembly of pre-Replication Complexes (preRCs) for the next S-phase. How CYCE/CDK2 is periodically silenced to allow re-replication has not been established. Here, using genetic tests in parallel with computational modelling, we show that the endocycles of Drosophila are driven by a molecular oscillator in which the E2F1 transcription factor promotes CycE expression and S-phase initiation, S-phase then activates the CRL4(CDT2) ubiquitin ligase, and this in turn mediates the destruction of E2F1 (ref. 7). We propose that it is the transient loss of E2F1 during S phases that creates the window of low Cdk activity required for preRC formation. In support of this model overexpressed E2F1 accelerated endocycling, whereas a stabilized variant of E2F1 blocked endocycling by deregulating target genes, including CycE, as well as Cdk1 and mitotic cyclins. Moreover, we find that altering cell growth by changing nutrition or target of rapamycin (TOR) signalling impacts E2F1 translation, thereby making endocycle progression growth-dependent. Many of the regulatory interactions essential to this novel cell cycle oscillator are conserved in animals and plants, indicating that elements of this mechanism act in most growth-dependent cell cycles.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3330263/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3330263/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zielke, Norman -- Kim, Kerry J -- Tran, Vuong -- Shibutani, Shusaku T -- Bravo, Maria-Jose -- Nagarajan, Sabarish -- van Straaten, Monique -- Woods, Brigitte -- von Dassow, George -- Rottig, Carmen -- Lehner, Christian F -- Grewal, Savraj S -- Duronio, Robert J -- Edgar, Bruce A -- 5 P50GM66050/GM/NIGMS NIH HHS/ -- GM51186/GM/NIGMS NIH HHS/ -- GM57859/GM/NIGMS NIH HHS/ -- MOP-86622/Canadian Institutes of Health Research/Canada -- R01 GM051186/GM/NIGMS NIH HHS/ -- R01 GM051186-14A1/GM/NIGMS NIH HHS/ -- England -- Nature. 2011 Oct 30;480(7375):123-7. doi: 10.1038/nature10579.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉German Cancer Research Center (DKFZ)-Zentrum fur Molekulare Biologie der Universitat Heidelberg Alliance, Im Neuenheimer Feld 282, 69120 Heidelberg, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22037307" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Cycle/*physiology ; Drosophila Proteins/*metabolism ; Drosophila melanogaster/*cytology/*enzymology/growth & development/metabolism ; E2F Transcription Factors/*metabolism ; Female ; Male ; S Phase/physiology ; Salivary Glands/cytology ; Ubiquitin-Protein Ligases/*metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 57
    Publication Date: 2011-04-08
    Description: X-chromosome inactivation (XCI) in female mammals allows dosage compensation for X-linked gene products between the sexes. The developmental regulation of this process has been extensively investigated in mice, where the X chromosome of paternal origin (Xp) is silenced during early embryogenesis owing to imprinted expression of the regulatory RNA, Xist (X-inactive specific transcript). Paternal XCI is reversed in the inner cell mass of the blastocyst and random XCI subsequently occurs in epiblast cells. Here we show that other eutherian mammals have very different strategies for initiating XCI. In rabbits and humans, the Xist homologue is not subject to imprinting and XCI begins later than in mice. Furthermore, Xist is upregulated on both X chromosomes in a high proportion of rabbit and human embryo cells, even in the inner cell mass. In rabbits, this triggers XCI on both X chromosomes in some cells. In humans, chromosome-wide XCI has not initiated even by the blastocyst stage, despite the upregulation of XIST. The choice of which X chromosome will finally become inactive thus occurs downstream of Xist upregulation in both rabbits and humans, unlike in mice. Our study demonstrates the remarkable diversity in XCI regulation and highlights differences between mammals in their requirement for dosage compensation during early embryogenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Okamoto, Ikuhiro -- Patrat, Catherine -- Thepot, Dominique -- Peynot, Nathalie -- Fauque, Patricia -- Daniel, Nathalie -- Diabangouaya, Patricia -- Wolf, Jean-Philippe -- Renard, Jean-Paul -- Duranthon, Veronique -- Heard, Edith -- England -- Nature. 2011 Apr 21;472(7343):370-4. doi: 10.1038/nature09872. Epub 2011 Apr 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Mammalian Developmental Epigenetics Group, Institut Curie, CNRS UMR 3215, INSERM U934, Paris 75248, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21471966" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Evolution ; Blastocyst/metabolism ; Chromosomes, Mammalian/*genetics ; Dosage Compensation, Genetic/genetics ; Embryo, Mammalian/embryology/metabolism ; Female ; Gene Expression Regulation, Developmental/*genetics ; Genes, X-Linked/genetics ; Genomic Imprinting/genetics ; Histones/metabolism ; Humans ; Hypoxanthine Phosphoribosyltransferase/genetics ; Male ; Mammals/embryology/*genetics ; Mice ; Parthenogenesis ; RNA, Long Noncoding ; RNA, Untranslated/genetics ; Rabbits ; Species Specificity ; Up-Regulation/genetics ; X Chromosome/*genetics ; X Chromosome Inactivation/*genetics
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 58
    Publication Date: 2011-07-15
    Description: A hallmark of RNA silencing is a class of approximately 22-nucleotide RNAs that are processed from double-stranded RNA precursors by Dicer. Accurate processing by Dicer is crucial for the functionality of microRNAs (miRNAs). The current model posits that Dicer selects cleavage sites by measuring a set distance from the 3' overhang of the double-stranded RNA terminus. Here we report that human Dicer anchors not only the 3' end but also the 5' end, with the cleavage site determined mainly by the distance ( approximately 22 nucleotides) from the 5' end (5' counting rule). This cleavage requires a 5'-terminal phosphate group. Further, we identify a novel basic motif (5' pocket) in human Dicer that recognizes the 5'-phosphorylated end. The 5' counting rule and the 5' anchoring residues are conserved in Drosophila Dicer-1, but not in Giardia Dicer. Mutations in the 5' pocket reduce processing efficiency and alter cleavage sites in vitro. Consistently, miRNA biogenesis is perturbed in vivo when Dicer-null embryonic stem cells are replenished with the 5'-pocket mutant. Thus, 5'-end recognition by Dicer is important for precise and effective biogenesis of miRNAs. Insights from this study should also afford practical benefits to the design of small hairpin RNAs.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4693635/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4693635/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Park, Jong-Eun -- Heo, Inha -- Tian, Yuan -- Simanshu, Dhirendra K -- Chang, Hyeshik -- Jee, David -- Patel, Dinshaw J -- Kim, V Narry -- P30 CA008748/CA/NCI NIH HHS/ -- R01 AI068776/AI/NIAID NIH HHS/ -- England -- Nature. 2011 Jul 13;475(7355):201-5. doi: 10.1038/nature10198.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Biological Sciences, Seoul National University, Seoul 151-742, Korea.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21753850" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Binding Sites/genetics ; DEAD-box RNA Helicases/deficiency/genetics/*metabolism ; Drosophila Proteins/metabolism ; Embryonic Stem Cells/metabolism ; Evolution, Molecular ; Giardia/enzymology ; HEK293 Cells ; Humans ; MicroRNAs/biosynthesis/chemistry/genetics/*metabolism ; Molecular Sequence Data ; Mutant Proteins/chemistry/genetics/metabolism ; Mutation/genetics ; Phosphates/metabolism ; Phosphorylation ; RNA Helicases/metabolism ; Ribonuclease III/deficiency/genetics/*metabolism ; Substrate Specificity/genetics
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 59
    facet.materialart.
    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2011-07-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schnabel, Jim -- England -- Nature. 2011 Jul 13;475(7355):S18-9. doi: 10.1038/475S18a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21760578" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/immunology/metabolism/*prevention & control/*therapy ; Alzheimer Vaccines/adverse effects/*immunology/*therapeutic use ; Amyloid/antagonists & inhibitors/chemistry/immunology/metabolism ; Amyloid beta-Peptides/adverse effects/*antagonists & ; inhibitors/chemistry/immunology/metabolism/therapeutic use ; Animals ; Antibodies, Monoclonal/adverse effects/immunology/therapeutic use ; Antibodies, Monoclonal, Humanized ; Clinical Trials as Topic ; Humans ; Immunoglobulins, Intravenous/economics/*immunology/*therapeutic use ; Mice ; tau Proteins/antagonists & inhibitors/chemistry/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 60
    Publication Date: 2011-11-04
    Description: Advanced age is the main risk factor for most chronic diseases and functional deficits in humans, but the fundamental mechanisms that drive ageing remain largely unknown, impeding the development of interventions that might delay or prevent age-related disorders and maximize healthy lifespan. Cellular senescence, which halts the proliferation of damaged or dysfunctional cells, is an important mechanism to constrain the malignant progression of tumour cells. Senescent cells accumulate in various tissues and organs with ageing and have been hypothesized to disrupt tissue structure and function because of the components they secrete. However, whether senescent cells are causally implicated in age-related dysfunction and whether their removal is beneficial has remained unknown. To address these fundamental questions, we made use of a biomarker for senescence, p16(Ink4a), to design a novel transgene, INK-ATTAC, for inducible elimination of p16(Ink4a)-positive senescent cells upon administration of a drug. Here we show that in the BubR1 progeroid mouse background, INK-ATTAC removes p16(Ink4a)-positive senescent cells upon drug treatment. In tissues--such as adipose tissue, skeletal muscle and eye--in which p16(Ink4a) contributes to the acquisition of age-related pathologies, life-long removal of p16(Ink4a)-expressing cells delayed onset of these phenotypes. Furthermore, late-life clearance attenuated progression of already established age-related disorders. These data indicate that cellular senescence is causally implicated in generating age-related phenotypes and that removal of senescent cells can prevent or delay tissue dysfunction and extend healthspan.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3468323/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3468323/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baker, Darren J -- Wijshake, Tobias -- Tchkonia, Tamar -- LeBrasseur, Nathan K -- Childs, Bennett G -- van de Sluis, Bart -- Kirkland, James L -- van Deursen, Jan M -- AG13925/AG/NIA NIH HHS/ -- CA96985/CA/NCI NIH HHS/ -- P30 DK050456/DK/NIDDK NIH HHS/ -- R01 AG013925/AG/NIA NIH HHS/ -- R01 AG013925-14/AG/NIA NIH HHS/ -- R01 CA096985/CA/NCI NIH HHS/ -- R01 CA096985-10/CA/NCI NIH HHS/ -- England -- Nature. 2011 Nov 2;479(7372):232-6. doi: 10.1038/nature10600.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pediatric and Adolescent Medicine, Mayo Clinic College of Medicine, Rochester, Minnesota 55905, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22048312" target="_blank"〉PubMed〈/a〉
    Keywords: Adipose Tissue/cytology/drug effects/pathology ; Aging/drug effects/*physiology ; Animals ; Bone Marrow Cells/cytology/drug effects ; Cell Aging/drug effects/*physiology ; Cell Count ; Cell Cycle Proteins ; Cells, Cultured ; Cyclin-Dependent Kinase Inhibitor p16/*metabolism ; Eye/cytology/drug effects/pathology ; Female ; Gene Expression ; Genotype ; Longevity/drug effects/physiology ; Male ; Mice ; Mice, Transgenic ; Muscle, Skeletal/cytology/drug effects/pathology ; Phenotype ; Progeria/metabolism ; Protein-Serine-Threonine Kinases/metabolism ; Tacrolimus/analogs & derivatives/pharmacology ; Time Factors ; Weaning
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 61
    Publication Date: 2011-07-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉O'Leary, Bethan C -- Roberts, Callum -- England -- Nature. 2011 Jul 27;475(7357):454. doi: 10.1038/475454b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21796193" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Conservation of Natural Resources/economics/legislation & jurisprudence ; Europe ; Fisheries/*economics/legislation & jurisprudence/methods/*standards ; *Politics ; Science/standards
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 62
    Publication Date: 2011-04-05
    Description: Adult hippocampal neurogenesis is a unique form of neural circuit plasticity that results in the generation of new neurons in the dentate gyrus throughout life. Neurons that arise in adults (adult-born neurons) show heightened synaptic plasticity during their maturation and can account for up to ten per cent of the entire granule cell population. Moreover, levels of adult hippocampal neurogenesis are increased by interventions that are associated with beneficial effects on cognition and mood, such as learning, environmental enrichment, exercise and chronic treatment with antidepressants. Together, these properties of adult neurogenesis indicate that this process could be harnessed to improve hippocampal functions. However, despite a substantial number of studies demonstrating that adult-born neurons are necessary for mediating specific cognitive functions, as well as some of the behavioural effects of antidepressants, it is unknown whether an increase in adult hippocampal neurogenesis is sufficient to improve cognition and mood. Here we show that inducible genetic expansion of the population of adult-born neurons through enhancing their survival improves performance in a specific cognitive task in which two similar contexts need to be distinguished. Mice with increased adult hippocampal neurogenesis show normal object recognition, spatial learning, contextual fear conditioning and extinction learning but are more efficient in differentiating between overlapping contextual representations, which is indicative of enhanced pattern separation. Furthermore, stimulation of adult hippocampal neurogenesis, when combined with an intervention such as voluntary exercise, produces a robust increase in exploratory behaviour. However, increasing adult hippocampal neurogenesis alone does not produce a behavioural response like that induced by anxiolytic agents or antidepressants. Together, our findings suggest that strategies that are designed to increase adult hippocampal neurogenesis specifically, by targeting the cell death of adult-born neurons or by other mechanisms, may have therapeutic potential for reversing impairments in pattern separation and dentate gyrus dysfunction such as those seen during normal ageing.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3084370/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3084370/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sahay, Amar -- Scobie, Kimberly N -- Hill, Alexis S -- O'Carroll, Colin M -- Kheirbek, Mazen A -- Burghardt, Nesha S -- Fenton, Andre A -- Dranovsky, Alex -- Hen, Rene -- 1K99MH86615-01/MH/NIMH NIH HHS/ -- K08 MH079088/MH/NIMH NIH HHS/ -- K08 MH079088-01/MH/NIMH NIH HHS/ -- K08 MH079088-02/MH/NIMH NIH HHS/ -- K08 MH079088-03/MH/NIMH NIH HHS/ -- K08 MH079088-03S1/MH/NIMH NIH HHS/ -- K08 MH079088-04/MH/NIMH NIH HHS/ -- K08 MH079088-05/MH/NIMH NIH HHS/ -- K99 MH086615/MH/NIMH NIH HHS/ -- K99 MH086615-02/MH/NIMH NIH HHS/ -- R01 MH068542/MH/NIMH NIH HHS/ -- R01 MH091844/MH/NIMH NIH HHS/ -- R01 MH091844-01/MH/NIMH NIH HHS/ -- R01 MH091844-02/MH/NIMH NIH HHS/ -- R01 MH091844-03/MH/NIMH NIH HHS/ -- T32 HD007430/HD/NICHD NIH HHS/ -- England -- Nature. 2011 Apr 28;472(7344):466-70. doi: 10.1038/nature09817. Epub 2011 Apr 3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroscience, Columbia University, New York, New York 10032, USA. as2619@columbia.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21460835" target="_blank"〉PubMed〈/a〉
    Keywords: Affect/*physiology ; Aging/drug effects/pathology/*physiology ; Animals ; Antidepressive Agents/pharmacology ; Anxiety/physiopathology/therapy ; Apoptosis/drug effects ; Cell Survival/drug effects ; Cognition/drug effects/*physiology ; Conditioning, Classical/drug effects/physiology ; Dentate Gyrus/cytology/pathology/physiology/physiopathology ; Exploratory Behavior/drug effects/physiology ; Extinction, Psychological/drug effects/physiology ; Fear/physiology/psychology ; Female ; Hippocampus/*cytology/pathology/*physiology/physiopathology ; Learning/drug effects/physiology ; Long-Term Potentiation/drug effects/physiology ; Male ; Memory/drug effects/physiology ; Mice ; Mice, Knockout ; Mice, Transgenic ; *Models, Neurological ; Neural Stem Cells/cytology/drug effects/metabolism ; Neurogenesis/drug effects/*physiology ; Neuronal Plasticity/drug effects/physiology ; Physical Conditioning, Animal/physiology ; Synapses/drug effects/metabolism ; bcl-2-Associated X Protein/deficiency/genetics/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 63
    Publication Date: 2011-01-05
    Description: In ascidian tunicates, the metamorphic transition from larva to adult is accompanied by dynamic changes in the body plan. For instance, the central nervous system (CNS) is subjected to extensive rearrangement because its regulating larval organs are lost and new adult organs are created. To understand how the adult CNS is reconstructed, we traced the fate of larval CNS cells during ascidian metamorphosis by using transgenic animals and imaging technologies with photoconvertible fluorescent proteins. Here we show that most parts of the ascidian larval CNS, except for the tail nerve cord, are maintained during metamorphosis and recruited to form the adult CNS. We also show that most of the larval neurons disappear and only a subset of cholinergic motor neurons and glutamatergic neurons are retained. Finally, we demonstrate that ependymal cells of the larval CNS contribute to the construction of the adult CNS and that some differentiate into neurons in the adult CNS. An unexpected role of ependymal cells highlighted by this study is that they serve as neural stem-like cells to reconstruct the adult nervous network during chordate metamorphosis. Consequently, the plasticity of non-neuronal ependymal cells and neuronal cells in chordates should be re-examined by future studies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Horie, Takeo -- Shinki, Ryoko -- Ogura, Yosuke -- Kusakabe, Takehiro G -- Satoh, Nori -- Sasakura, Yasunori -- England -- Nature. 2011 Jan 27;469(7331):525-8. doi: 10.1038/nature09631. Epub 2011 Jan 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Shimoda Marine Research Center, University of Tsukuba, Shimoda, Shizuoka 415-0025, Japan. horie@kurofune.shimoda.tsukuba.ac.jp〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21196932" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cell Differentiation ; Central Nervous System/cytology/growth & development ; Larva ; Metamorphosis, Biological ; Neural Stem Cells/cytology ; Urochordata/*growth & development
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 64
    Publication Date: 2011-03-25
    Description: Systematic annotation of gene regulatory elements is a major challenge in genome science. Direct mapping of chromatin modification marks and transcriptional factor binding sites genome-wide has successfully identified specific subtypes of regulatory elements. In Drosophila several pioneering studies have provided genome-wide identification of Polycomb response elements, chromatin states, transcription factor binding sites, RNA polymerase II regulation and insulator elements; however, comprehensive annotation of the regulatory genome remains a significant challenge. Here we describe results from the modENCODE cis-regulatory annotation project. We produced a map of the Drosophila melanogaster regulatory genome on the basis of more than 300 chromatin immunoprecipitation data sets for eight chromatin features, five histone deacetylases and thirty-eight site-specific transcription factors at different stages of development. Using these data we inferred more than 20,000 candidate regulatory elements and validated a subset of predictions for promoters, enhancers and insulators in vivo. We identified also nearly 2,000 genomic regions of dense transcription factor binding associated with chromatin activity and accessibility. We discovered hundreds of new transcription factor co-binding relationships and defined a transcription factor network with over 800 potential regulatory relationships.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3179250/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3179250/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Negre, Nicolas -- Brown, Christopher D -- Ma, Lijia -- Bristow, Christopher Aaron -- Miller, Steven W -- Wagner, Ulrich -- Kheradpour, Pouya -- Eaton, Matthew L -- Loriaux, Paul -- Sealfon, Rachel -- Li, Zirong -- Ishii, Haruhiko -- Spokony, Rebecca F -- Chen, Jia -- Hwang, Lindsay -- Cheng, Chao -- Auburn, Richard P -- Davis, Melissa B -- Domanus, Marc -- Shah, Parantu K -- Morrison, Carolyn A -- Zieba, Jennifer -- Suchy, Sarah -- Senderowicz, Lionel -- Victorsen, Alec -- Bild, Nicholas A -- Grundstad, A Jason -- Hanley, David -- MacAlpine, David M -- Mannervik, Mattias -- Venken, Koen -- Bellen, Hugo -- White, Robert -- Gerstein, Mark -- Russell, Steven -- Grossman, Robert L -- Ren, Bing -- Posakony, James W -- Kellis, Manolis -- White, Kevin P -- F32 GM074364/GM/NIGMS NIH HHS/ -- F32 GM074364-01/GM/NIGMS NIH HHS/ -- F32 GM074364-02/GM/NIGMS NIH HHS/ -- P50 GM081892/GM/NIGMS NIH HHS/ -- R01 HG004037/HG/NHGRI NIH HHS/ -- R01 HG004037-04/HG/NHGRI NIH HHS/ -- RC2 HG005639/HG/NHGRI NIH HHS/ -- RC2 HG005639-02/HG/NHGRI NIH HHS/ -- U01 HG004264/HG/NHGRI NIH HHS/ -- U01 HG004279/HG/NHGRI NIH HHS/ -- U01HG004264/HG/NHGRI NIH HHS/ -- England -- Nature. 2011 Mar 24;471(7339):527-31. doi: 10.1038/nature09990.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Genomics and Systems Biology, Department of Human Genetics, The University of Chicago, 900 East 57th Street, Chicago, Illinois 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21430782" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromatin/metabolism ; Chromatin Assembly and Disassembly ; Chromatin Immunoprecipitation ; Drosophila melanogaster/*genetics ; Enhancer Elements, Genetic/genetics ; Genome, Insect/*genetics ; Histone Deacetylases/metabolism ; Insulator Elements/genetics ; *Molecular Sequence Annotation ; Promoter Regions, Genetic/genetics ; Regulatory Sequences, Nucleic Acid/*genetics ; Reproducibility of Results ; Silencer Elements, Transcriptional/genetics ; Transcription Factors/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 65
    Publication Date: 2011-11-04
    Description: Despite decades of research, the roles of climate and humans in driving the dramatic extinctions of large-bodied mammals during the Late Quaternary period remain contentious. Here we use ancient DNA, species distribution models and the human fossil record to elucidate how climate and humans shaped the demographic history of woolly rhinoceros, woolly mammoth, wild horse, reindeer, bison and musk ox. We show that climate has been a major driver of population change over the past 50,000 years. However, each species responds differently to the effects of climatic shifts, habitat redistribution and human encroachment. Although climate change alone can explain the extinction of some species, such as Eurasian musk ox and woolly rhinoceros, a combination of climatic and anthropogenic effects appears to be responsible for the extinction of others, including Eurasian steppe bison and wild horse. We find no genetic signature or any distinctive range dynamics distinguishing extinct from surviving species, emphasizing the challenges associated with predicting future responses of extant mammals to climate and human-mediated habitat change.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4070744/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4070744/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lorenzen, Eline D -- Nogues-Bravo, David -- Orlando, Ludovic -- Weinstock, Jaco -- Binladen, Jonas -- Marske, Katharine A -- Ugan, Andrew -- Borregaard, Michael K -- Gilbert, M Thomas P -- Nielsen, Rasmus -- Ho, Simon Y W -- Goebel, Ted -- Graf, Kelly E -- Byers, David -- Stenderup, Jesper T -- Rasmussen, Morten -- Campos, Paula F -- Leonard, Jennifer A -- Koepfli, Klaus-Peter -- Froese, Duane -- Zazula, Grant -- Stafford, Thomas W Jr -- Aaris-Sorensen, Kim -- Batra, Persaram -- Haywood, Alan M -- Singarayer, Joy S -- Valdes, Paul J -- Boeskorov, Gennady -- Burns, James A -- Davydov, Sergey P -- Haile, James -- Jenkins, Dennis L -- Kosintsev, Pavel -- Kuznetsova, Tatyana -- Lai, Xulong -- Martin, Larry D -- McDonald, H Gregory -- Mol, Dick -- Meldgaard, Morten -- Munch, Kasper -- Stephan, Elisabeth -- Sablin, Mikhail -- Sommer, Robert S -- Sipko, Taras -- Scott, Eric -- Suchard, Marc A -- Tikhonov, Alexei -- Willerslev, Rane -- Wayne, Robert K -- Cooper, Alan -- Hofreiter, Michael -- Sher, Andrei -- Shapiro, Beth -- Rahbek, Carsten -- Willerslev, Eske -- R01 HG003229/HG/NHGRI NIH HHS/ -- England -- Nature. 2011 Nov 2;479(7373):359-64. doi: 10.1038/nature10574.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for GeoGenetics, University of Copenhagen, Oster Voldgade 5-7, DK-1350 Copenhagen K, Denmark.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22048313" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bayes Theorem ; *Biota ; Bison ; Climate Change/*history ; DNA, Mitochondrial/analysis/genetics ; Europe ; *Extinction, Biological ; Fossils ; Genetic Variation ; Geography ; History, Ancient ; Horses ; Human Activities/*history ; Humans ; Mammals/genetics/*physiology ; Mammoths ; Molecular Sequence Data ; Population Dynamics ; Reindeer ; Siberia ; Species Specificity ; Time Factors
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 66
    Publication Date: 2011-06-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schoeninger, Margaret J -- England -- Nature. 2011 Jun 2;474(7349):43, 45. doi: 10.1038/474043a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21637250" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Anthropology ; Body Size/physiology ; Diet ; Feeding Behavior/physiology ; Hominidae/*physiology ; *Paleontology ; Sex Factors ; Strontium Isotopes/analysis ; Tooth/chemistry
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 67
    Publication Date: 2011-10-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Benitah, Salvador Aznar -- England -- Nature. 2011 Oct 19;478(7369):329-30. doi: 10.1038/478329a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22012386" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carcinoma, Squamous Cell/*blood supply/*pathology ; Neuropilin-1/*metabolism ; *Signal Transduction ; Skin Neoplasms/*blood supply/*pathology ; Vascular Endothelial Growth Factor A/*metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 68
    facet.materialart.
    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2011-12-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cressey, Daniel -- England -- Nature. 2011 Dec 8;480(7376):166-7. doi: 10.1038/480166a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22158221" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biota ; Conservation of Natural Resources/methods/*statistics & numerical data/*trends ; Environmental Monitoring/standards ; Internationality ; Marine Biology ; Oceans and Seas ; Seawater ; *Uncertainty ; Wilderness
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 69
    Publication Date: 2011-01-07
    Description: Widespread anoxia in the ocean is frequently invoked as a primary driver of mass extinction as well as a long-term inhibitor of evolutionary radiation on early Earth. In recent biogeochemical studies it has been hypothesized that oxygen deficiency was widespread in subsurface water masses of later Cambrian oceans, possibly influencing evolutionary events during this time. Physical evidence of widespread anoxia in Cambrian oceans has remained elusive and thus its potential relationship to the palaeontological record remains largely unexplored. Here we present sulphur isotope records from six globally distributed stratigraphic sections of later Cambrian marine rocks (about 499 million years old). We find a positive sulphur isotope excursion in phase with the Steptoean Positive Carbon Isotope Excursion (SPICE), a large and rapid excursion in the marine carbon isotope record, which is thought to be indicative of a global carbon cycle perturbation. Numerical box modelling of the paired carbon sulphur isotope data indicates that these isotope shifts reflect transient increases in the burial of organic carbon and pyrite sulphur in sediments deposited under large-scale anoxic and sulphidic (euxinic) conditions. Independently, molybdenum abundances in a coeval black shale point convincingly to the transient spread of anoxia. These results identify the SPICE interval as the best characterized ocean anoxic event in the pre-Mesozoic ocean and an extreme example of oxygen deficiency in the later Cambrian ocean. Thus, a redox structure similar to those in Proterozoic oceans may have persisted or returned in the oceans of the early Phanerozoic eon. Indeed, the environmental challenges presented by widespread anoxia may have been a prevalent if not dominant influence on animal evolution in Cambrian oceans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gill, Benjamin C -- Lyons, Timothy W -- Young, Seth A -- Kump, Lee R -- Knoll, Andrew H -- Saltzman, Matthew R -- England -- Nature. 2011 Jan 6;469(7328):80-3. doi: 10.1038/nature09700.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Earth Sciences, University of California, 900 University Avenue, Riverside, California 92521, USA. bgill@fas.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21209662" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Evolution ; Carbon Cycle ; Carbon Isotopes/analysis ; Carbonates/analysis ; Extinction, Biological ; Fossils ; Geologic Sediments/*chemistry ; History, Ancient ; Iron/analysis/chemistry ; Molybdenum/analysis/chemistry ; Oceans and Seas ; Oxidation-Reduction ; Oxygen/*analysis ; Seawater/*chemistry ; Sulfides/*analysis/chemistry ; Sulfur Isotopes/analysis ; Sweden
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 70
    Publication Date: 2011-10-11
    Description: The mammary epithelium is composed of several cell lineages including luminal, alveolar and myoepithelial cells. Transplantation studies have suggested that the mammary epithelium is maintained by the presence of multipotent mammary stem cells. To define the cellular hierarchy of the mammary gland during physiological conditions, we performed genetic lineage-tracing experiments and clonal analysis of the mouse mammary gland during development, adulthood and pregnancy. We found that in postnatal unperturbed mammary gland, both luminal and myoepithelial lineages contain long-lived unipotent stem cells that display extensive renewing capacities, as demonstrated by their ability to clonally expand during morphogenesis and adult life as well as undergo massive expansion during several cycles of pregnancy. The demonstration that the mammary gland contains different types of long-lived stem cells has profound implications for our understanding of mammary gland physiology and will be instrumental in unravelling the cells at the origin of breast cancers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Van Keymeulen, Alexandra -- Rocha, Ana Sofia -- Ousset, Marielle -- Beck, Benjamin -- Bouvencourt, Gaelle -- Rock, Jason -- Sharma, Neha -- Dekoninck, Sophie -- Blanpain, Cedric -- England -- Nature. 2011 Oct 9;479(7372):189-93. doi: 10.1038/nature10573.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Universite Libre de Bruxelles, IRIBHM, Brussels B-1070, Belgium.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21983963" target="_blank"〉PubMed〈/a〉
    Keywords: Aging ; Animals ; Cell Differentiation ; *Cell Lineage ; Cell Transplantation ; Epithelium ; Female ; Homeostasis ; Lactation/physiology ; Mammary Glands, Animal/*cytology/*growth & development/physiology/transplantation ; Mice ; Multipotent Stem Cells/cytology ; Pregnancy ; Stem Cells/*cytology/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 71
    facet.materialart.
    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2011-03-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Macdonald, Sally -- Ashby, Jack -- England -- Nature. 2011 Mar 10;471(7337):164-5. doi: 10.1038/471164a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21390112" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Endangered Species ; Humans ; London ; *Museums ; Natural History/education ; *Universities/economics/organization & administration ; Zoology/education
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 72
    facet.materialart.
    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2011-03-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jonietz, Erika -- England -- Nature. 2011 Mar 24;471(7339):S20-1. doi: 10.1038/471S20a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21430717" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Azasteroids/pharmacology ; Biomarkers, Tumor/analysis/blood ; Clinical Trials as Topic/adverse effects/*methods ; Disease Models, Animal ; Drug Approval/legislation & jurisprudence ; Dutasteride ; Health ; Humans ; Male ; Neoplasms/blood/diagnosis/*prevention & control ; Prostatic Neoplasms/prevention & control ; Reproducibility of Results ; Risk Assessment ; United States ; United States Food and Drug Administration/legislation & jurisprudence
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 73
    facet.materialart.
    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2011-11-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cressey, Daniel -- England -- Nature. 2011 Nov 16;479(7373):277. doi: 10.1038/479277a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22094665" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Coral Reefs ; Ecology ; *Ecosystem ; Environmental Monitoring ; Eutrophication ; Geography ; Iran ; Oceans and Seas ; United Arab Emirates
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 74
    facet.materialart.
    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2011-08-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Garber, Janet C -- England -- Nature. 2011 Aug 10;476(7359):152. doi: 10.1038/476152a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21833072" target="_blank"〉PubMed〈/a〉
    Keywords: Animal Welfare/*standards ; Animals ; *Animals, Laboratory/physiology/psychology ; Female ; *Guidelines as Topic ; Male ; United States
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 75
    Publication Date: 2011-07-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zukor, Katherine -- He, Zhigang -- England -- Nature. 2011 Jul 13;475(7355):177-8. doi: 10.1038/475178a.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Kirby Program in Neuroscience, Children's Hospital Boston, Boston, Massachusetts 02115, USA. katherine.zukor@childrens.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21753842" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/physiology ; Chondroitin ABC Lyase/metabolism ; Chondroitin Sulfate Proteoglycans/metabolism ; Diaphragm/innervation/physiology ; Electromyography ; Extracellular Matrix/metabolism ; Humans ; Nerve Regeneration/*physiology ; Neuronal Plasticity/physiology ; Phrenic Nerve/cytology/physiology/transplantation ; Rats ; *Respiration ; Spinal Cord Injuries/*physiopathology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 76
    Publication Date: 2011-03-04
    Description: The effective use of targeted therapy is highly dependent on the identification of responder patient populations. Loss of FBW7, which encodes a tumour-suppressor protein, is frequently found in various types of human cancer, including breast cancer, colon cancer and T-cell acute lymphoblastic leukaemia (T-ALL). In line with these genomic data, engineered deletion of Fbw7 in mouse T cells results in T-ALL, validating FBW7 as a T-ALL tumour suppressor. Determining the precise molecular mechanisms by which FBW7 exerts antitumour activity is an area of intensive investigation. These mechanisms are thought to relate in part to FBW7-mediated destruction of key proteins relevant to cancer, including Jun, Myc, cyclin E and notch 1 (ref. 9), all of which have oncoprotein activity and are overexpressed in various human cancers, including leukaemia. In addition to accelerating cell growth, overexpression of Jun, Myc or notch 1 can also induce programmed cell death. Thus, considerable uncertainty surrounds how FBW7-deficient cells evade cell death in the setting of upregulated Jun, Myc and/or notch 1. Here we show that the E3 ubiquitin ligase SCF(FBW7) (a SKP1-cullin-1-F-box complex that contains FBW7 as the F-box protein) governs cellular apoptosis by targeting MCL1, a pro-survival BCL2 family member, for ubiquitylation and destruction in a manner that depends on phosphorylation by glycogen synthase kinase 3. Human T-ALL cell lines showed a close relationship between FBW7 loss and MCL1 overexpression. Correspondingly, T-ALL cell lines with defective FBW7 are particularly sensitive to the multi-kinase inhibitor sorafenib but resistant to the BCL2 antagonist ABT-737. On the genetic level, FBW7 reconstitution or MCL1 depletion restores sensitivity to ABT-737, establishing MCL1 as a therapeutically relevant bypass survival mechanism that enables FBW7-deficient cells to evade apoptosis. Therefore, our work provides insight into the molecular mechanism of direct tumour suppression by FBW7 and has implications for the targeted treatment of patients with FBW7-deficient T-ALL.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3076007/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3076007/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Inuzuka, Hiroyuki -- Shaik, Shavali -- Onoyama, Ichiro -- Gao, Daming -- Tseng, Alan -- Maser, Richard S -- Zhai, Bo -- Wan, Lixin -- Gutierrez, Alejandro -- Lau, Alan W -- Xiao, Yonghong -- Christie, Amanda L -- Aster, Jon -- Settleman, Jeffrey -- Gygi, Steven P -- Kung, Andrew L -- Look, Thomas -- Nakayama, Keiichi I -- DePinho, Ronald A -- Wei, Wenyi -- GM089763/GM/NIGMS NIH HHS/ -- R01 GM089763/GM/NIGMS NIH HHS/ -- R01 GM089763-01/GM/NIGMS NIH HHS/ -- R01 GM089763-02/GM/NIGMS NIH HHS/ -- England -- Nature. 2011 Mar 3;471(7336):104-9. doi: 10.1038/nature09732.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02215, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21368833" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; *Apoptosis/drug effects ; Benzenesulfonates/pharmacology ; Biphenyl Compounds/pharmacology ; Cell Cycle Proteins/genetics/*metabolism ; Cell Line, Tumor ; F-Box Proteins/genetics/*metabolism ; Glycogen Synthase Kinase 3/metabolism ; Humans ; Mice ; Molecular Sequence Data ; Myeloid Cell Leukemia Sequence 1 Protein ; Niacinamide/analogs & derivatives ; Nitrophenols/pharmacology ; Phenylurea Compounds ; Phosphorylation ; Piperazines/pharmacology ; Precursor T-Cell Lymphoblastic Leukemia-Lymphoma/pathology ; Protein Binding/drug effects ; Proto-Oncogene Proteins c-bcl-2/antagonists & inhibitors/*chemistry/*metabolism ; Pyridines/pharmacology ; SKP Cullin F-Box Protein Ligases/*chemistry/*metabolism ; Sulfonamides/pharmacology ; Tumor Suppressor Proteins/deficiency/genetics/metabolism ; Ubiquitin-Protein Ligases/deficiency/genetics/*metabolism ; *Ubiquitination/drug effects
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 77
    Publication Date: 2011-05-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Veron, Nathalie -- Peters, Antoine H F M -- England -- Nature. 2011 May 19;473(7347):293-4. doi: 10.1038/473293a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21593859" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromatin/genetics/metabolism ; CpG Islands/genetics ; Cytosine/*analogs & derivatives/analysis/metabolism ; *DNA Methylation ; DNA-Binding Proteins/*metabolism ; Embryonic Stem Cells/*metabolism ; *Epigenesis, Genetic ; *Gene Expression Regulation, Developmental/genetics ; Genome/genetics ; Mice ; Polycomb-Group Proteins ; Promoter Regions, Genetic/genetics ; Proto-Oncogene Proteins/*metabolism ; Repressor Proteins/metabolism ; Transcription, Genetic/genetics
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 78
    Publication Date: 2011-07-26
    Description: Mitochondrial uncoupling protein 2 (UCP2) is an integral membrane protein in the mitochondrial anion carrier protein family, the members of which facilitate the transport of small molecules across the mitochondrial inner membrane. When the mitochondrial respiratory complex pumps protons from the mitochondrial matrix to the intermembrane space, it builds up an electrochemical potential. A fraction of this electrochemical potential is dissipated as heat, in a process involving leakage of protons back to the matrix. This leakage, or 'uncoupling' of the proton electrochemical potential, is mediated primarily by uncoupling proteins. However, the mechanism of UCP-mediated proton translocation across the lipid bilayer is unknown. Here we describe a solution-NMR method for structural characterization of UCP2. The method, which overcomes some of the challenges associated with membrane-protein structure determination, combines orientation restraints derived from NMR residual dipolar couplings (RDCs) and semiquantitative distance restraints from paramagnetic relaxation enhancement (PRE) measurements. The local and secondary structures of the protein were determined by piecing together molecular fragments from the Protein Data Bank that best fit experimental RDCs from samples weakly aligned in a DNA nanotube liquid crystal. The RDCs also determine the relative orientation of the secondary structural segments, and the PRE restraints provide their spatial arrangement in the tertiary fold. UCP2 closely resembles the bovine ADP/ATP carrier (the only carrier protein of known structure), but the relative orientations of the helical segments are different, resulting in a wider opening on the matrix side of the inner membrane. Moreover, the nitroxide-labelled GDP binds inside the channel and seems to be closer to transmembrane helices 1-4. We believe that this biophysical approach can be applied to other membrane proteins and, in particular, to other mitochondrial carriers, not only for structure determination but also to characterize various conformational states of these proteins linked to substrate transport.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3150631/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3150631/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Berardi, Marcelo J -- Shih, William M -- Harrison, Stephen C -- Chou, James J -- 1DP2OD004641/OD/NIH HHS/ -- 1U54GM094608/GM/NIGMS NIH HHS/ -- R21 DK075963/DK/NIDDK NIH HHS/ -- R21 DK075963-01/DK/NIDDK NIH HHS/ -- R21 DK075963-02/DK/NIDDK NIH HHS/ -- U54 GM094608/GM/NIGMS NIH HHS/ -- U54 GM094608-01/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2011 Jul 24;476(7358):109-13. doi: 10.1038/nature10257.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Jack and Eileen Connors Structural Biology Laboratory, Harvard Medical School, Boston, Massachusetts 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21785437" target="_blank"〉PubMed〈/a〉
    Keywords: Adenine Nucleotide Translocator 1/chemistry/metabolism ; Animals ; Binding Sites ; Cattle ; Databases, Protein ; Guanosine Diphosphate/chemistry/metabolism ; Ion Channels/*chemistry/metabolism ; Mice ; Mitochondrial ADP, ATP Translocases/chemistry ; Mitochondrial Proteins/*chemistry/metabolism ; Models, Molecular ; Nitrogen Oxides/chemistry/metabolism ; Nuclear Magnetic Resonance, Biomolecular/*methods ; Protein Conformation
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 79
    Publication Date: 2011-11-19
    Description: Flying insects oscillate their wings at high frequencies of up to 1,000 Hz and produce large mechanical forces of 80 W per kilogram of muscle. They utilize a pair of perpendicularly oriented indirect flight muscles that contain fibrillar, stretch-activated myofibres. In contrast, all other, more slowly contracting, insect body muscles have a tubular muscle morphology. Here we identify the transcription factor Spalt major (Salm) as a master regulator of fibrillar flight muscle fate in Drosophila. salm is necessary and sufficient to induce fibrillar muscle fate. salm switches the entire transcriptional program from tubular to fibrillar fate by regulating the expression and splicing of key sarcomeric components specific to each muscle type. Spalt function is conserved in insects evolutionarily separated by 280 million years. We propose that Spalt proteins switch myofibres from tubular to fibrillar fate during development, a function potentially conserved in the vertebrate heart--a stretch-activated muscle sharing features with insect flight muscle.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schonbauer, Cornelia -- Distler, Jutta -- Jahrling, Nina -- Radolf, Martin -- Dodt, Hans-Ulrich -- Frasch, Manfred -- Schnorrer, Frank -- England -- Nature. 2011 Nov 16;479(7373):406-9. doi: 10.1038/nature10559.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max-Planck-Institute of Biochemistry, Am Klopferspitz 18, 82152 Martinsried, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22094701" target="_blank"〉PubMed〈/a〉
    Keywords: Alternative Splicing ; Animals ; *Biological Evolution ; *Conserved Sequence ; Drosophila Proteins/genetics/*metabolism ; Drosophila melanogaster/*anatomy & histology/genetics/*growth & ; development/physiology ; Gene Expression Regulation, Developmental ; Homeodomain Proteins/genetics/*metabolism ; Muscles/*anatomy & histology/*physiology ; Nuclear Proteins/metabolism ; Transcription Factors/genetics/*metabolism ; Transcription, Genetic
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 80
    Publication Date: 2011-04-12
    Description: The type I interferon response protects cells against invading viral pathogens. The cellular factors that mediate this defence are the products of interferon-stimulated genes (ISGs). Although hundreds of ISGs have been identified since their discovery more than 25 years ago, only a few have been characterized with respect to antiviral activity. For most ISG products, little is known about their antiviral potential, their target specificity and their mechanisms of action. Using an overexpression screening approach, here we show that different viruses are targeted by unique sets of ISGs. We find that each viral species is susceptible to multiple antiviral genes, which together encompass a range of inhibitory activities. To conduct the screen, more than 380 human ISGs were tested for their ability to inhibit the replication of several important human and animal viruses, including hepatitis C virus, yellow fever virus, West Nile virus, chikungunya virus, Venezuelan equine encephalitis virus and human immunodeficiency virus type-1. Broadly acting effectors included IRF1, C6orf150 (also known as MB21D1), HPSE, RIG-I (also known as DDX58), MDA5 (also known as IFIH1) and IFITM3, whereas more targeted antiviral specificity was observed with DDX60, IFI44L, IFI6, IFITM2, MAP3K14, MOV10, NAMPT (also known as PBEF1), OASL, RTP4, TREX1 and UNC84B (also known as SUN2). Combined expression of pairs of ISGs showed additive antiviral effects similar to those of moderate type I interferon doses. Mechanistic studies uncovered a common theme of translational inhibition for numerous effectors. Several ISGs, including ADAR, FAM46C, LY6E and MCOLN2, enhanced the replication of certain viruses, highlighting another layer of complexity in the highly pleiotropic type I interferon system.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3409588/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3409588/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schoggins, John W -- Wilson, Sam J -- Panis, Maryline -- Murphy, Mary Y -- Jones, Christopher T -- Bieniasz, Paul -- Rice, Charles M -- AI057158/AI/NIAID NIH HHS/ -- AI064003/AI/NIAID NIH HHS/ -- DK081193/DK/NIDDK NIH HHS/ -- DK082155/DK/NIDDK NIH HHS/ -- F32 DK081193-01A1/DK/NIDDK NIH HHS/ -- F32 DK082155/DK/NIDDK NIH HHS/ -- F32 DK082155-01/DK/NIDDK NIH HHS/ -- R01 AI064003/AI/NIAID NIH HHS/ -- R01 AI064003-01/AI/NIAID NIH HHS/ -- U54 AI057158/AI/NIAID NIH HHS/ -- U54 AI057158-01/AI/NIAID NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2011 Apr 28;472(7344):481-5. doi: 10.1038/nature09907. Epub 2011 Apr 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Virology and Infectious Disease, Center for the Study of Hepatitis C, The Rockefeller University, New York, New York 10065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21478870" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Gene Expression Profiling ; Gene Expression Regulation/*genetics/*immunology ; HEK293 Cells ; Humans ; Interferon Type I/*immunology ; Protein Biosynthesis ; Virus Replication ; Viruses/growth & development/*immunology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 81
    Publication Date: 2011-08-13
    Description: This year, 2011, marks the forty-year anniversary of the statistical analysis of retinoblastoma that provided the first evidence that tumorigenesis can be initiated by as few as two mutations. This work provided the foundation for the two-hit hypothesis that explained the role of recessive tumour suppressor genes (TSGs) in dominantly inherited cancer susceptibility syndromes. However, four decades later, it is now known that even partial inactivation of tumour suppressors can critically contribute to tumorigenesis. Here we analyse this evidence and propose a continuum model of TSG function to explain the full range of TSG mutations found in cancer.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3206311/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3206311/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Berger, Alice H -- Knudson, Alfred G -- Pandolfi, Pier Paolo -- CA06927/CA/NCI NIH HHS/ -- R01 CA142787/CA/NCI NIH HHS/ -- R01CA142787/CA/NCI NIH HHS/ -- U01 CA141496/CA/NCI NIH HHS/ -- England -- Nature. 2011 Aug 10;476(7359):163-9. doi: 10.1038/nature10275.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cancer Genetics Program, Beth Israel Deaconess Cancer Center, Harvard Medical School, Boston, Massachusetts 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21833082" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Transformation, Neoplastic/genetics/metabolism/pathology ; Genes, Tumor Suppressor/*physiology ; Genetic Predisposition to Disease/genetics ; Haploinsufficiency/genetics ; Humans ; *Models, Genetic ; Neoplasms/*genetics/metabolism/*pathology/therapy
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 82
    facet.materialart.
    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2011-10-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉England -- Nature. 2011 Oct 26;478(7370):427-8. doi: 10.1038/478427b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22031396" target="_blank"〉PubMed〈/a〉
    Keywords: Animal Experimentation/*ethics/*legislation & jurisprudence/standards ; Animal Rights/legislation & jurisprudence/standards ; Animals ; *Communication ; Congresses as Topic ; European Union ; Germany ; *International Cooperation ; Research Personnel ; Switzerland
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 83
    Publication Date: 2011-05-27
    Description: Swine influenza A viruses (SwIV) cause significant economic losses in animal husbandry as well as instances of human disease and occasionally give rise to human pandemics, including that caused by the H1N1/2009 virus. The lack of systematic and longitudinal influenza surveillance in pigs has hampered attempts to reconstruct the origins of this pandemic. Most existing swine data were derived from opportunistic samples collected from diseased pigs in disparate geographical regions, not from prospective studies in defined locations, hence the evolutionary and transmission dynamics of SwIV are poorly understood. Here we quantify the epidemiological, genetic and antigenic dynamics of SwIV in Hong Kong using a data set of more than 650 SwIV isolates and more than 800 swine sera from 12 years of systematic surveillance in this region, supplemented with data stretching back 34 years. Intercontinental virus movement has led to reassortment and lineage replacement, creating an antigenically and genetically diverse virus population whose dynamics are quantitatively different from those previously observed for human influenza viruses. Our findings indicate that increased antigenic drift is associated with reassortment events and offer insights into the emergence of influenza viruses with epidemic potential in swine and humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vijaykrishna, Dhanasekaran -- Smith, Gavin J D -- Pybus, Oliver G -- Zhu, Huachen -- Bhatt, Samir -- Poon, Leo L M -- Riley, Steven -- Bahl, Justin -- Ma, Siu K -- Cheung, Chung L -- Perera, Ranawaka A P M -- Chen, Honglin -- Shortridge, Kennedy F -- Webby, Richard J -- Webster, Robert G -- Guan, Yi -- Peiris, J S Malik -- HHSN26600700005C/PHS HHS/ -- MC_G0902096/Medical Research Council/United Kingdom -- England -- Nature. 2011 May 26;473(7348):519-22. doi: 10.1038/nature10004.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉State Key Laboratory of Emerging Infectious Diseases & Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 21 Sassoon Road, Pokfulam, Hong Kong, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21614079" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Birds/virology ; *Evolution, Molecular ; Female ; Hong Kong/epidemiology ; Humans ; Influenza A Virus, H1N1 Subtype/classification/genetics/isolation & ; purification/*physiology ; Influenza in Birds/transmission/virology ; Influenza, Human/epidemiology/transmission/virology ; Male ; Molecular Epidemiology ; Molecular Sequence Data ; Orthomyxoviridae Infections/epidemiology/transmission/*veterinary/virology ; Phylogeny ; Population Surveillance ; Reassortant Viruses/genetics/immunology/isolation & purification/physiology ; Swine/blood/*virology ; Swine Diseases/blood/epidemiology/*transmission/*virology ; Zoonoses/epidemiology/transmission/*virology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 84
    Publication Date: 2011-07-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Perera, Rushika M -- Bardeesy, Nabeel -- England -- Nature. 2011 Jul 6;475(7354):43-4. doi: 10.1038/475043a.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Massachusetts General Hospital, Cancer Center, and Department of Medicine, Harvard Medical School, Boston, Massachusetts 02114, USA. rperera@partners.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21734699" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing/genetics/metabolism ; Animals ; Antioxidants/metabolism ; Cell Transformation, Neoplastic/genetics/*metabolism/*pathology ; Cytoskeletal Proteins/genetics/metabolism ; Extracellular Signal-Regulated MAP Kinases/metabolism ; Humans ; Intracellular Signaling Peptides and Proteins/genetics/metabolism ; JNK Mitogen-Activated Protein Kinases/metabolism ; MAP Kinase Signaling System ; Mice ; Mitogen-Activated Protein Kinase Kinases/metabolism ; NF-E2-Related Factor 2/genetics/*metabolism ; Neoplasms/genetics/metabolism/pathology ; Oncogenes/*genetics ; Reactive Oxygen Species/*metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 85
    Publication Date: 2011-04-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Seed, Amanda M -- Jensen, Keith -- England -- Nature. 2011 Apr 28;472(7344):424-5. doi: 10.1038/472424a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21525921" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Cognition/physiology ; *Cooperative Behavior ; Elephants/anatomy & histology/*physiology ; Humans ; Learning/physiology ; Pan troglodytes/physiology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 86
    Publication Date: 2011-03-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Conradt, Larissa -- England -- Nature. 2011 Mar 3;471(7336):40-1. doi: 10.1038/471040a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21368814" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Choice Behavior ; Decision Making/*physiology ; Fishes/*physiology ; *Group Processes ; Humans ; Locomotion/*physiology ; Mass Behavior ; Predatory Behavior
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 87
    Publication Date: 2011-10-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Van Noorden, Richard -- England -- Nature. 2011 Oct 5;478(7367):26-8. doi: 10.1038/478026a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21979026" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Editorial Policies ; Guidelines as Topic ; Humans ; Periodicals as Topic/*standards ; Research Design/statistics & numerical data ; *Retraction of Publication as Topic ; *Science/ethics/standards ; Scientific Misconduct/statistics & numerical data
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 88
    facet.materialart.
    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2011-12-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉England -- Nature. 2011 Dec 7;480(7376):151-2. doi: 10.1038/480151b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22158202" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Conservation of Natural Resources/economics/legislation & ; jurisprudence/methods/statistics & numerical data ; *Ecology/economics/legislation & jurisprudence/methods/statistics & numerical ; data ; *Ecosystem ; Fisheries ; Government Regulation ; Marine Biology/economics/methods ; Oceans and Seas ; *Seawater
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 89
    Publication Date: 2011-02-11
    Description: The anaphase-promoting complex or cyclosome (APC/C) is an unusually large E3 ubiquitin ligase responsible for regulating defined cell cycle transitions. Information on how its 13 constituent proteins are assembled, and how they interact with co-activators, substrates and regulatory proteins is limited. Here, we describe a recombinant expression system that allows the reconstitution of holo APC/C and its sub-complexes that, when combined with electron microscopy, mass spectrometry and docking of crystallographic and homology-derived coordinates, provides a precise definition of the organization and structure of all essential APC/C subunits, resulting in a pseudo-atomic model for 70% of the APC/C. A lattice-like appearance of the APC/C is generated by multiple repeat motifs of most APC/C subunits. Three conserved tetratricopeptide repeat (TPR) subunits (Cdc16, Cdc23 and Cdc27) share related superhelical homo-dimeric architectures that assemble to generate a quasi-symmetrical structure. Our structure explains how this TPR sub-complex, together with additional scaffolding subunits (Apc1, Apc4 and Apc5), coordinate the juxtaposition of the catalytic and substrate recognition module (Apc2, Apc11 and Apc10 (also known as Doc1)), and TPR-phosphorylation sites, relative to co-activator, regulatory proteins and substrates.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schreiber, Anne -- Stengel, Florian -- Zhang, Ziguo -- Enchev, Radoslav I -- Kong, Eric H -- Morris, Edward P -- Robinson, Carol V -- da Fonseca, Paula C A -- Barford, David -- Cancer Research UK/United Kingdom -- England -- Nature. 2011 Feb 10;470(7333):227-32. doi: 10.1038/nature09756.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Structural Biology, Institute of Cancer Research, Chester Beatty Laboratories, 237 Fulham Road, London, SW3 6JB, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21307936" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Anaphase-Promoting Complex-Cyclosome ; Animals ; Apc2 Subunit, Anaphase-Promoting Complex-Cyclosome ; Apc5 Subunit, Anaphase-Promoting Complex-Cyclosome ; Apc8 Subunit, Anaphase-Promoting Complex-Cyclosome ; Biocatalysis ; Cell Line ; Holoenzymes/chemistry/metabolism/ultrastructure ; Mass Spectrometry ; Microscopy, Electron ; Models, Molecular ; Molecular Weight ; Protein Binding ; Protein Conformation ; Protein Subunits/chemistry/isolation & purification/metabolism ; Recombinant Proteins/chemistry/metabolism/ultrastructure ; Saccharomyces cerevisiae/chemistry/genetics ; Saccharomyces cerevisiae Proteins/chemistry/isolation & ; purification/metabolism/ultrastructure ; Scattering, Radiation ; Schizosaccharomyces/chemistry ; Structure-Activity Relationship ; Substrate Specificity ; Ubiquitin-Protein Ligase Complexes/*chemistry/*metabolism/ultrastructure ; Ubiquitination
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 90
    Publication Date: 2011-12-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Seip, Hans Martin -- England -- Nature. 2011 Dec 14;480(7377):321. doi: 10.1038/480321a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22170671" target="_blank"〉PubMed〈/a〉
    Keywords: Agriculture/*statistics & numerical data/*trends ; Animals ; Greenhouse Effect/*prevention & control/*statistics & numerical data
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 91
    Publication Date: 2011-09-03
    Description: In the central nervous system, ageing results in a precipitous decline in adult neural stem/progenitor cells and neurogenesis, with concomitant impairments in cognitive functions. Interestingly, such impairments can be ameliorated through systemic perturbations such as exercise. Here, using heterochronic parabiosis we show that blood-borne factors present in the systemic milieu can inhibit or promote adult neurogenesis in an age-dependent fashion in mice. Accordingly, exposing a young mouse to an old systemic environment or to plasma from old mice decreased synaptic plasticity, and impaired contextual fear conditioning and spatial learning and memory. We identify chemokines--including CCL11 (also known as eotaxin)--the plasma levels of which correlate with reduced neurogenesis in heterochronic parabionts and aged mice, and the levels of which are increased in the plasma and cerebrospinal fluid of healthy ageing humans. Lastly, increasing peripheral CCL11 chemokine levels in vivo in young mice decreased adult neurogenesis and impaired learning and memory. Together our data indicate that the decline in neurogenesis and cognitive impairments observed during ageing can be in part attributed to changes in blood-borne factors.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3170097/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3170097/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Villeda, Saul A -- Luo, Jian -- Mosher, Kira I -- Zou, Bende -- Britschgi, Markus -- Bieri, Gregor -- Stan, Trisha M -- Fainberg, Nina -- Ding, Zhaoqing -- Eggel, Alexander -- Lucin, Kurt M -- Czirr, Eva -- Park, Jeong-Soo -- Couillard-Despres, Sebastien -- Aigner, Ludwig -- Li, Ge -- Peskind, Elaine R -- Kaye, Jeffrey A -- Quinn, Joseph F -- Galasko, Douglas R -- Xie, Xinmin S -- Rando, Thomas A -- Wyss-Coray, Tony -- 1 F31 AG034045-01/AG/NIA NIH HHS/ -- 1 F31 NS066676-01A1/NS/NINDS NIH HHS/ -- DP1 OD000392/OD/NIH HHS/ -- DP1 OD000392-01/OD/NIH HHS/ -- DP1 OD000392-02/OD/NIH HHS/ -- DP1 OD000392-03/OD/NIH HHS/ -- DP1 OD000392-04/OD/NIH HHS/ -- DP1 OD000392-05/OD/NIH HHS/ -- F31 AG034045/AG/NIA NIH HHS/ -- F31 AG034045-01/AG/NIA NIH HHS/ -- F31 AG034045-02/AG/NIA NIH HHS/ -- F31 AG034045-03/AG/NIA NIH HHS/ -- P30AG08017/AG/NIA NIH HHS/ -- P50 AG005136/AG/NIA NIH HHS/ -- R01 AG027505/AG/NIA NIH HHS/ -- R01 AG027505-01A1/AG/NIA NIH HHS/ -- R01 AG027505-02/AG/NIA NIH HHS/ -- R01 AG027505-03/AG/NIA NIH HHS/ -- R01 AG027505-04/AG/NIA NIH HHS/ -- R01 AG027505-05/AG/NIA NIH HHS/ -- R01 AR056849/AR/NIAMS NIH HHS/ -- R01 MH078194/MH/NIMH NIH HHS/ -- R01AG027505/AG/NIA NIH HHS/ -- T32 AI007290/AI/NIAID NIH HHS/ -- England -- Nature. 2011 Aug 31;477(7362):90-4. doi: 10.1038/nature10357.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21886162" target="_blank"〉PubMed〈/a〉
    Keywords: Aging ; Animals ; Chemokine CCL11/blood/cerebrospinal fluid/metabolism/pharmacology ; Chemokines/*blood/cerebrospinal fluid/*metabolism ; Female ; Learning/drug effects/*physiology ; Learning Disorders/blood/cerebrospinal fluid/physiopathology ; Male ; Memory Disorders/blood/cerebrospinal fluid/physiopathology ; Mice ; Mice, Inbred C57BL ; Neurogenesis/drug effects/*physiology ; Parabiosis ; Plasma/chemistry ; Time Factors
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 92
    facet.materialart.
    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2011-11-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gilbert, Natasha -- England -- Nature. 2011 Nov 16;479(7373):279. doi: 10.1038/479279a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22094667" target="_blank"〉PubMed〈/a〉
    Keywords: Agriculture/economics/methods/*statistics & numerical data/*trends ; Animals ; Congresses as Topic ; Conservation of Natural Resources/economics/legislation & ; jurisprudence/methods/trends ; Food Supply/statistics & numerical data ; Greenhouse Effect/economics/legislation & jurisprudence/*prevention & ; control/*statistics & numerical data
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 93
    Publication Date: 2011-10-21
    Description: Angiogenesis is critical during tumour initiation and malignant progression. Different strategies aimed at blocking vascular endothelial growth factor (VEGF) and its receptors have been developed to inhibit angiogenesis in cancer patients. It has become increasingly clear that in addition to its effect on angiogenesis, other mechanisms including a direct effect of VEGF on tumour cells may account for the efficiency of VEGF-blockade therapies. Cancer stem cells (CSCs) have been described in various cancers including squamous tumours of the skin. Here we use a mouse model of skin tumours to investigate the impact of the vascular niche and VEGF signalling on controlling the stemness (the ability to self renew and differentiate) of squamous skin tumours during the early stages of tumour progression. We show that CSCs of skin papillomas are localized in a perivascular niche, in the immediate vicinity of endothelial cells. Furthermore, blocking VEGFR2 caused tumour regression not only by decreasing the microvascular density, but also by reducing CSC pool size and impairing CSC renewal properties. Conditional deletion of Vegfa in tumour epithelial cells caused tumours to regress, whereas VEGF overexpression by tumour epithelial cells accelerated tumour growth. In addition to its well-known effect on angiogenesis, VEGF affected skin tumour growth by promoting cancer stemness and symmetric CSC division, leading to CSC expansion. Moreover, deletion of neuropilin-1 (Nrp1), a VEGF co-receptor expressed in cutaneous CSCs, blocked VEGF's ability to promote cancer stemness and renewal. Our results identify a dual role for tumour-cell-derived VEGF in promoting cancer stemness: by stimulating angiogenesis in a paracrine manner, VEGF creates a perivascular niche for CSCs, and by directly affecting CSCs through Nrp1 in an autocrine loop, VEGF stimulates cancer stemness and renewal. Finally, deletion of Nrp1 in normal epidermis prevents skin tumour initiation. These results may have important implications for the prevention and treatment of skin cancers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beck, Benjamin -- Driessens, Gregory -- Goossens, Steven -- Youssef, Khalil Kass -- Kuchnio, Anna -- Caauwe, Amelie -- Sotiropoulou, Panagiota A -- Loges, Sonja -- Lapouge, Gaelle -- Candi, Aurelie -- Mascre, Guilhem -- Drogat, Benjamin -- Dekoninck, Sophie -- Haigh, Jody J -- Carmeliet, Peter -- Blanpain, Cedric -- England -- Nature. 2011 Oct 19;478(7369):399-403. doi: 10.1038/nature10525.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉IRIBHM, Universite Libre de Bruxelles, 808 route de Lennik, 1070 Brussels, Belgium.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22012397" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carcinoma, Squamous Cell/*blood supply/*pathology ; Cell Differentiation ; Cell Proliferation ; Cells, Cultured ; Disease Models, Animal ; Epithelial Cells/cytology ; Gene Deletion ; Gene Expression Regulation, Neoplastic ; Mice ; Neoplastic Stem Cells ; Neuropilin-1/genetics/*metabolism ; *Signal Transduction ; Skin Neoplasms/*blood supply/*pathology ; Vascular Endothelial Growth Factor A/genetics/*metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 94
    facet.materialart.
    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2011-01-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Van Noorden, Richard -- Ledford, Heidi -- Mann, Adam -- England -- Nature. 2011 Jan 6;469(7328):12. doi: 10.1038/469012a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21209635" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Climate ; Drug Evaluation, Preclinical/trends ; Genome-Wide Association Study ; Genomics/economics/trends ; Hepatitis C/drug therapy ; History, Ancient ; Humans ; Induced Pluripotent Stem Cells ; Lasers ; Oceanography/trends ; Oligopeptides/therapeutic use ; Physics/trends ; Planets ; Science/*trends ; Space Flight/trends ; Spacecraft ; Synthetic Biology/trends
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 95
    Publication Date: 2011-05-13
    Description: Dietary restriction is a robust means of extending adult lifespan and postponing age-related disease in many species, including yeast, nematode worms, flies and rodents. Studies of the genetic requirements for lifespan extension by dietary restriction in the nematode Caenorhabditis elegans have implicated a number of key molecules in this process, including the nutrient-sensing target of rapamycin (TOR) pathway and the Foxa transcription factor PHA-4 (ref. 7). However, little is known about the metabolic signals that coordinate the organismal response to dietary restriction and maintain homeostasis when nutrients are limited. The endocannabinoid system is an excellent candidate for such a role given its involvement in regulating nutrient intake and energy balance. Despite this, a direct role for endocannabinoid signalling in dietary restriction or lifespan determination has yet to be demonstrated, in part due to the apparent absence of endocannabinoid signalling pathways in model organisms that are amenable to lifespan analysis. N-acylethanolamines (NAEs) are lipid-derived signalling molecules, which include the mammalian endocannabinoid arachidonoyl ethanolamide. Here we identify NAEs in C. elegans, show that NAE abundance is reduced under dietary restriction and that NAE deficiency is sufficient to extend lifespan through a dietary restriction mechanism requiring PHA-4. Conversely, dietary supplementation with the nematode NAE eicosapentaenoyl ethanolamide not only inhibits dietary-restriction-induced lifespan extension in wild-type worms, but also suppresses lifespan extension in a TOR pathway mutant. This demonstrates a role for NAE signalling in ageing and indicates that NAEs represent a signal that coordinates nutrient status with metabolic changes that ultimately determine lifespan.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3093655/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3093655/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lucanic, Mark -- Held, Jason M -- Vantipalli, Maithili C -- Klang, Ida M -- Graham, Jill B -- Gibson, Bradford W -- Lithgow, Gordon J -- Gill, Matthew S -- PL1-AG032118/AG/NIA NIH HHS/ -- R01 AG029631/AG/NIA NIH HHS/ -- R01 AG036992/AG/NIA NIH HHS/ -- R01AG029631/AG/NIA NIH HHS/ -- R21 AG030192/AG/NIA NIH HHS/ -- T32 AG000266/AG/NIA NIH HHS/ -- T32 AG000266-13/AG/NIA NIH HHS/ -- T32AG000266/AG/NIA NIH HHS/ -- UL1 DE019608/DE/NIDCR NIH HHS/ -- UL1 RR024917/RR/NCRR NIH HHS/ -- England -- Nature. 2011 May 12;473(7346):226-9. doi: 10.1038/nature10007.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, California 94945, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21562563" target="_blank"〉PubMed〈/a〉
    Keywords: Amides/pharmacology ; Amidohydrolases/metabolism ; Animals ; Caenorhabditis elegans/drug effects/genetics/growth & ; development/metabolism/*physiology ; Caenorhabditis elegans Proteins/metabolism ; Caloric Restriction ; *Diet ; Ethanolamines/*metabolism ; Gene Expression Regulation, Developmental ; Longevity/drug effects/*physiology ; Mutation ; *Signal Transduction ; Trans-Activators/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 96
    facet.materialart.
    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2011-03-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Corbyn, Zoe -- England -- Nature. 2011 Mar 3;471(7336):25-6. doi: 10.1038/471025a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21368800" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Female ; Humans ; Indians, North American/*education/*statistics & numerical data ; Mercury/analysis ; Research/*manpower/statistics & numerical data ; Students/statistics & numerical data ; Trout ; Universities/manpower/organization & administration/statistics & numerical data
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 97
    facet.materialart.
    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2011-04-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schrope, Mark -- England -- Nature. 2011 Apr 14;472(7342):152-4. doi: 10.1038/472152a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21490648" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anthozoa/drug effects ; Aquatic Organisms/*drug effects ; Chemical Hazard Release/*statistics & numerical data ; Data Collection ; *Ecosystem ; Mexico ; Oceans and Seas ; Petroleum/*adverse effects/*analysis ; Seawater/analysis/*chemistry
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 98
    Publication Date: 2011-12-14
    Description: Until recently, intricate details of the optical design of non-biomineralized arthropod eyes remained elusive in Cambrian Burgess-Shale-type deposits, despite exceptional preservation of soft-part anatomy in such Konservat-Lagerstatten. The structure and development of ommatidia in arthropod compound eyes support a single origin some time before the latest common ancestor of crown-group arthropods, but the appearance of compound eyes in the arthropod stem group has been poorly constrained in the absence of adequate fossils. Here we report 2-3-cm paired eyes from the early Cambrian (approximately 515 million years old) Emu Bay Shale of South Australia, assigned to the Cambrian apex predator Anomalocaris. Their preserved visual surfaces are composed of at least 16,000 hexagonally packed ommatidial lenses (in a single eye), rivalling the most acute compound eyes in modern arthropods. The specimens show two distinct taphonomic modes, preserved as iron oxide (after pyrite) and calcium phosphate, demonstrating that disparate styles of early diagenetic mineralization can replicate the same type of extracellular tissue (that is, cuticle) within a single Burgess-Shale-type deposit. These fossils also provide compelling evidence for the arthropod affinities of anomalocaridids, push the origin of compound eyes deeper down the arthropod stem lineage, and indicate that the compound eye evolved before such features as a hardened exoskeleton. The inferred acuity of the anomalocaridid eye is consistent with other evidence that these animals were highly mobile visual predators in the water column. The existence of large, macrophagous nektonic predators possessing sharp vision--such as Anomalocaris--within the early Cambrian ecosystem probably helped to accelerate the escalatory 'arms race' that began over half a billion years ago.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Paterson, John R -- Garcia-Bellido, Diego C -- Lee, Michael S Y -- Brock, Glenn A -- Jago, James B -- Edgecombe, Gregory D -- England -- Nature. 2011 Dec 7;480(7376):237-40. doi: 10.1038/nature10689.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Earth Sciences, School of Environmental and Rural Science, University of New England, Armidale, New South Wales 2351, Australia. jpater20@une.edu.au〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22158247" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arthropods/*anatomy & histology/*physiology ; Australia ; *Biological Evolution ; Compound Eye, Arthropod/*anatomy & histology/*physiology ; Extinction, Biological ; *Fossils ; Geologic Sediments ; History, Ancient ; Predatory Behavior ; Vision, Ocular/*physiology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 99
    Publication Date: 2011-05-27
    Description: Anomalocaridids, giant lightly sclerotized invertebrate predators, occur in a number of exceptionally preserved early and middle Cambrian (542-501 million years ago) biotas and have come to symbolize the unfamiliar morphologies displayed by stem organisms in faunas of the Burgess Shale type. They are characterized by a pair of anterior, segmented appendages, a circlet of plates around the mouth, and an elongate segmented trunk lacking true tergites with a pair of flexible lateral lobes per segment. Disarticulated body parts, such as the anterior appendages and oral circlet, had been assigned to a range of taxonomic groups--but the discovery of complete specimens from the middle Cambrian Burgess Shale showed that these disparate elements all belong to a single kind of animal. Phylogenetic analyses support a position of anomalocaridids in the arthropod stem, as a sister group to the euarthropods. The anomalocaridids were the largest animals in Cambrian communities. The youngest unequivocal examples occur in the middle Cambrian Marjum Formation of Utah but an arthropod retaining some anomalocaridid characteristics is present in the Devonian of Germany. Here we report the post-Cambrian occurrence of anomalocaridids, from the Early Ordovician (488-472 million years ago) Fezouata Biota in southeastern Morocco, including specimens larger than any in Cambrian biotas. These giant animals were an important element of some marine communities for about 30 million years longer than previously realized. The Moroccan specimens confirm the presence of a dorsal array of flexible blades attached to a transverse rachis on the trunk segments; these blades probably functioned as gills.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Van Roy, Peter -- Briggs, Derek E G -- England -- Nature. 2011 May 26;473(7348):510-3. doi: 10.1038/nature09920.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Geology and Geophysics, Yale University, PO Box 208109, New Haven, Connecticut 06520, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21614078" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Fossils ; Gills/anatomy & histology ; History, Ancient ; Invertebrates/*anatomy & histology/*classification/physiology ; Morocco ; Phylogeny
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 100
    Publication Date: 2011-03-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Peter, Marcus E -- England -- Nature. 2011 Mar 17;471(7338):310-2. doi: 10.1038/471310a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21412328" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD95/metabolism ; *Apoptosis ; CASP8 and FADD-Like Apoptosis Regulating Protein/*metabolism ; Caspase 8/genetics/*metabolism ; Cell Proliferation ; Embryo Loss/enzymology/genetics/metabolism ; Embryo, Mammalian/cytology/embryology/enzymology/metabolism ; Fas-Associated Death Domain Protein/deficiency/genetics/*metabolism ; GTPase-Activating Proteins/deficiency/genetics/*metabolism ; Humans ; Lymphocytes/cytology/immunology ; Mice ; *Necrosis/genetics ; Receptor-Interacting Protein Serine-Threonine ; Kinases/deficiency/genetics/*metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...