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  • 1
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    Nature Publishing Group (NPG)
    Publication Date: 2010-03-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Check Hayden, Erika -- England -- Nature. 2010 Mar 18;464(7287):332-3. doi: 10.1038/464332b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20237530" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bias (Epidemiology) ; Biomedical Research/*methods ; Clinical Trials as Topic/methods ; Drug Evaluation/*methods ; Female ; Humans ; Male ; Patient Selection ; Prejudice ; *Sex Characteristics ; Sex Distribution
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 2
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    Nature Publishing Group (NPG)
    Publication Date: 2010-07-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Trivedi, Bijal -- England -- Nature. 2010 Jul 15;466(7304):S5. doi: 10.1038/nature09236.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20631704" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS Vaccines/immunology ; Animals ; Chronic Disease ; Disease Models, Animal ; Disease Progression ; Female ; Genome, Viral/genetics ; HIV Infections/*immunology/physiopathology/virology ; HIV-1/genetics/growth & development/immunology ; Host-Pathogen Interactions/immunology ; Immunity, Innate/immunology ; Inflammation/immunology/pathology ; Interleukin-17/immunology ; Macaca/immunology/virology ; Male ; Physiology, Comparative/methods ; Primates/*immunology/metabolism/*virology ; Receptors, HIV/metabolism ; Simian Acquired Immunodeficiency Syndrome/*immunology/metabolism/virology ; Simian Immunodeficiency Virus/classification/genetics/pathogenicity/*physiology ; T-Lymphocytes, Helper-Inducer/immunology/pathology ; Viral Load
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    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 3
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    Nature Publishing Group (NPG)
    Publication Date: 2010-06-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zucker, Irving -- Beery, Annaliese K -- England -- Nature. 2010 Jun 10;465(7299):690. doi: 10.1038/465690a.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departmentsof Psychology, Helen Wills Neuroscience Institute, University of California, Berkeley, California 94720, USA. irvzuck@berkeley.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20535186" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bias (Epidemiology) ; Biomedical Research/ethics/*methods/trends ; *Disease Models, Animal ; Female ; Humans ; Male ; Prevalence ; *Sex Characteristics ; Sex Distribution ; Sex Factors
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    Electronic ISSN: 1476-4687
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  • 4
    Publication Date: 2010-01-30
    Description: Humans have engaged in endurance running for millions of years, but the modern running shoe was not invented until the 1970s. For most of human evolutionary history, runners were either barefoot or wore minimal footwear such as sandals or moccasins with smaller heels and little cushioning relative to modern running shoes. We wondered how runners coped with the impact caused by the foot colliding with the ground before the invention of the modern shoe. Here we show that habitually barefoot endurance runners often land on the fore-foot (fore-foot strike) before bringing down the heel, but they sometimes land with a flat foot (mid-foot strike) or, less often, on the heel (rear-foot strike). In contrast, habitually shod runners mostly rear-foot strike, facilitated by the elevated and cushioned heel of the modern running shoe. Kinematic and kinetic analyses show that even on hard surfaces, barefoot runners who fore-foot strike generate smaller collision forces than shod rear-foot strikers. This difference results primarily from a more plantarflexed foot at landing and more ankle compliance during impact, decreasing the effective mass of the body that collides with the ground. Fore-foot- and mid-foot-strike gaits were probably more common when humans ran barefoot or in minimal shoes, and may protect the feet and lower limbs from some of the impact-related injuries now experienced by a high percentage of runners.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lieberman, Daniel E -- Venkadesan, Madhusudhan -- Werbel, William A -- Daoud, Adam I -- D'Andrea, Susan -- Davis, Irene S -- Mang'eni, Robert Ojiambo -- Pitsiladis, Yannis -- England -- Nature. 2010 Jan 28;463(7280):531-5. doi: 10.1038/nature08723.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Human Evolutionary Biology, 11 Divinity Avenue, Harvard University, Cambridge, Massachusetts 02138, USA. danlieb@fas.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20111000" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Biomechanical Phenomena ; Child ; Female ; Foot/*physiology ; Forefoot, Human/physiology ; Gait/physiology ; Humans ; Kenya ; Male ; Running/*physiology ; *Shoes/standards ; *Stress, Mechanical ; United States ; Weight-Bearing/physiology ; Young Adult
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 5
    Publication Date: 2010-08-13
    Description: Anxious temperament (AT) in human and non-human primates is a trait-like phenotype evident early in life that is characterized by increased behavioural and physiological reactivity to mildly threatening stimuli. Studies in children demonstrate that AT is an important risk factor for the later development of anxiety disorders, depression and comorbid substance abuse. Despite its importance as an early predictor of psychopathology, little is known about the factors that predispose vulnerable children to develop AT and the brain systems that underlie its expression. To characterize the neural circuitry associated with AT and the extent to which the function of this circuit is heritable, we studied a large sample of rhesus monkeys phenotyped for AT. Using 238 young monkeys from a multigenerational single-family pedigree, we simultaneously assessed brain metabolic activity and AT while monkeys were exposed to the relevant ethological condition that elicits the phenotype. High-resolution (18)F-labelled deoxyglucose positron-emission tomography (FDG-PET) was selected as the imaging modality because it provides semi-quantitative indices of absolute glucose metabolic rate, allows for simultaneous measurement of behaviour and brain activity, and has a time course suited for assessing temperament-associated sustained brain responses. Here we demonstrate that the central nucleus region of the amygdala and the anterior hippocampus are key components of the neural circuit predictive of AT. We also show significant heritability of the AT phenotype by using quantitative genetic analysis. Additionally, using voxelwise analyses, we reveal significant heritability of metabolic activity in AT-associated hippocampal regions. However, activity in the amygdala region predictive of AT is not significantly heritable. Furthermore, the heritabilities of the hippocampal and amygdala regions significantly differ from each other. Even though these structures are closely linked, the results suggest differential influences of genes and environment on how these brain regions mediate AT and the ongoing risk of developing anxiety and depression.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2998538/" 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/PMC2998538/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Oler, Jonathan A -- Fox, Andrew S -- Shelton, Steven E -- Rogers, Jeffrey -- Dyer, Thomas D -- Davidson, Richard J -- Shelledy, Wendy -- Oakes, Terrence R -- Blangero, John -- Kalin, Ned H -- MH018931/MH/NIMH NIH HHS/ -- MH046729/MH/NIMH NIH HHS/ -- MH059490/MH/NIMH NIH HHS/ -- MH081884/MH/NIMH NIH HHS/ -- MH084051/MH/NIMH NIH HHS/ -- P50 MH084051/MH/NIMH NIH HHS/ -- P50 MH084051-030001/MH/NIMH NIH HHS/ -- R01 MH046729/MH/NIMH NIH HHS/ -- R01 MH046729-17/MH/NIMH NIH HHS/ -- R01 MH081884/MH/NIMH NIH HHS/ -- R01 MH081884-04/MH/NIMH NIH HHS/ -- R37 MH059490/MH/NIMH NIH HHS/ -- R37 MH059490-13/MH/NIMH NIH HHS/ -- England -- Nature. 2010 Aug 12;466(7308):864-8. doi: 10.1038/nature09282.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychiatry, University of Wisconsin-Madison, Madison, Wisconsin 53719, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20703306" target="_blank"〉PubMed〈/a〉
    Keywords: Amygdala/*metabolism ; Animals ; Anxiety/*genetics/*physiopathology ; Depression/genetics ; Female ; Freezing Reaction, Cataleptic ; Genetic Predisposition to Disease/*genetics ; Glucose/metabolism ; *Heredity ; Hippocampus/*metabolism ; Macaca mulatta/genetics/physiology ; Male ; Models, Animal ; Neural Pathways/physiology ; Pedigree ; Phenotype ; Positron-Emission Tomography ; Stress, Psychological ; Temperament/*physiology ; Temporal Lobe/metabolism ; Vocalization, Animal
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  • 6
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    Nature Publishing Group (NPG)
    Publication Date: 2010-07-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Basu, Paroma -- England -- Nature. 2010 Jul 15;466(7304):S14-5. doi: 10.1038/nature09241.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20631697" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/drug therapy/epidemiology/prevention & ; control/psychology/transmission ; Adult ; Child ; Chronic Disease/drug therapy/epidemiology/prevention & control/psychology ; Community-Institutional Relations ; Developed Countries/*statistics & numerical data ; Female ; HIV Infections/drug therapy/*epidemiology/prevention & ; control/*psychology/transmission ; Health Education ; Humans ; Incidence ; Male ; Patient Compliance/psychology/statistics & numerical data ; Risk-Taking ; Safe Sex/*psychology/*statistics & numerical data ; Viral Load/drug effects
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 7
    Publication Date: 2010-01-22
    Description: Among the extraordinary adaptations driven by sperm competition is the cooperative behaviour of spermatozoa. By forming cooperative groups, sperm can increase their swimming velocity and thereby gain an advantage in intermale sperm competition. Accordingly, selection should favour cooperation of the most closely related sperm to maximize fitness. Here we show that sperm of deer mice (genus Peromyscus) form motile aggregations, then we use this system to test predictions of sperm cooperation. We find that sperm aggregate more often with conspecific than heterospecific sperm, suggesting that individual sperm can discriminate on the basis of genetic relatedness. Next, we provide evidence that the cooperative behaviour of closely related sperm is driven by sperm competition. In a monogamous species lacking sperm competition, Peromyscus polionotus, sperm indiscriminately group with unrelated conspecific sperm. In contrast, in the highly promiscuous deer mouse, Peromyscus maniculatus, sperm are significantly more likely to aggregate with those obtained from the same male than with sperm from an unrelated conspecific donor. Even when we test sperm from sibling males, we continue to see preferential aggregations of related sperm in P. maniculatus. These results suggest that sperm from promiscuous deer mice discriminate among relatives and thereby cooperate with the most closely related sperm, an adaptation likely to have been driven by sperm competition.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2824558/" 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/PMC2824558/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fisher, Heidi S -- Hoekstra, Hopi E -- F32 GM084719/GM/NIGMS NIH HHS/ -- F32 GM084719-02/GM/NIGMS NIH HHS/ -- England -- Nature. 2010 Feb 11;463(7282):801-3. doi: 10.1038/nature08736. Epub 2010 Jan 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Organismic and Evolutionary Biology, Museum of Comparative Zoology, Cambridge, Massachusetts 02138, USA. hfisher@oeb.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20090679" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Aggregation ; Competitive Behavior/*physiology ; *Cooperative Behavior ; Copulation/physiology ; Female ; Male ; Peromyscus/*classification/*physiology ; Sexual Behavior, Animal/*physiology ; Species Specificity ; Sperm Motility/physiology ; Spermatozoa/*physiology
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  • 8
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    Nature Publishing Group (NPG)
    Publication Date: 2010-12-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Benton, Richard -- England -- Nature. 2010 Dec 2;468(7324):638-40. doi: 10.1038/468638a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21124442" target="_blank"〉PubMed〈/a〉
    Keywords: Acetates/pharmacology ; Animals ; Drosophila Proteins/genetics/metabolism ; Drosophila melanogaster/anatomy & histology/*cytology/*drug effects/physiology ; Female ; Gene Expression Regulation ; Male ; Nerve Tissue Proteins/genetics/metabolism ; Neuroanatomical Tract-Tracing Techniques/methods ; Oleic Acids/pharmacology ; Olfactory Pathways/anatomy & histology/cytology/*drug effects ; Olfactory Perception/drug effects/physiology ; Pheromones/*pharmacology ; Sensory Receptor Cells/drug effects/physiology ; *Sex Characteristics ; Sexual Behavior, Animal/physiology ; Transcription Factors/genetics/metabolism
    Print ISSN: 0028-0836
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  • 9
    Publication Date: 2010-12-03
    Description: The capacity to fine-tune cellular bioenergetics with the demands of stem-cell maintenance and regeneration is central to normal development and ageing, and to organismal survival during periods of acute stress. How energy metabolism and stem-cell homeostatic processes are coordinated is not well understood. Lkb1 acts as an evolutionarily conserved regulator of cellular energy metabolism in eukaryotic cells and functions as the major upstream kinase to phosphorylate AMP-activated protein kinase (AMPK) and 12 other AMPK-related kinases. Whether Lkb1 regulates stem-cell maintenance remains unknown. Here we show that Lkb1 has an essential role in haematopoietic stem cell (HSC) homeostasis. We demonstrate that ablation of Lkb1 in adult mice results in severe pancytopenia and subsequent lethality. Loss of Lkb1 leads to impaired survival and escape from quiescence of HSCs, resulting in exhaustion of the HSC pool and a marked reduction of HSC repopulating potential in vivo. Lkb1 deletion has an impact on cell proliferation in HSCs, but not on more committed compartments, pointing to context-specific functions for Lkb1 in haematopoiesis. The adverse impact of Lkb1 deletion on haematopoiesis was predominantly cell-autonomous and mTOR complex 1 (mTORC1)-independent, and involves multiple mechanisms converging on mitochondrial apoptosis and possibly downregulation of PGC-1 coactivators and their transcriptional network, which have critical roles in mitochondrial biogenesis and function. Thus, Lkb1 serves as an essential regulator of HSCs and haematopoiesis, and more generally, points to the critical importance of coupling energy metabolism and stem-cell homeostasis.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3058342/" 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/PMC3058342/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gan, Boyi -- Hu, Jian -- Jiang, Shan -- Liu, Yingchun -- Sahin, Ergun -- Zhuang, Li -- Fletcher-Sananikone, Eliot -- Colla, Simona -- Wang, Y Alan -- Chin, Lynda -- Depinho, Ronald A -- 01CA141508/CA/NCI NIH HHS/ -- R21 CA135057/CA/NCI NIH HHS/ -- R21 CA135057-01/CA/NCI NIH HHS/ -- R21CA135057/CA/NCI NIH HHS/ -- U01 CA141508/CA/NCI NIH HHS/ -- U01 CA141508-01/CA/NCI NIH HHS/ -- England -- Nature. 2010 Dec 2;468(7324):701-4. doi: 10.1038/nature09595.〈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/21124456" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apoptosis ; Cell Cycle/*physiology ; Cell Proliferation ; Cell Survival ; *Energy Metabolism ; Female ; Gene Deletion ; Hematopoiesis ; Hematopoietic Stem Cells/*cytology/*metabolism/pathology ; *Homeostasis ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Mitochondria/metabolism/pathology ; Multiprotein Complexes ; Pancytopenia/genetics ; Phenotype ; Protein-Serine-Threonine Kinases/deficiency/genetics/*metabolism ; Proteins/metabolism ; Survival Analysis ; TOR Serine-Threonine Kinases ; Transcription Factors/metabolism
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  • 10
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    Nature Publishing Group (NPG)
    Publication Date: 2010-08-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schnabel, Jim -- England -- Nature. 2010 Aug 26;466(7310):S2-5. doi: 10.1038/466S2b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20739933" target="_blank"〉PubMed〈/a〉
    Keywords: Amyloid/metabolism ; Female ; Humans ; Male ; Mitochondria/pathology ; Neurons/*pathology ; Parkinson Disease/diagnosis/genetics/*pathology ; alpha-Synuclein/genetics/metabolism
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  • 11
    Publication Date: 2010-04-23
    Description: The worldwide prevalence of chronic hepatitis C virus (HCV) infection is estimated to be approaching 200 million people. Current therapy relies upon a combination of pegylated interferon-alpha and ribavirin, a poorly tolerated regimen typically associated with less than 50% sustained virological response rate in those infected with genotype 1 virus. The development of direct-acting antiviral agents to treat HCV has focused predominantly on inhibitors of the viral enzymes NS3 protease and the RNA-dependent RNA polymerase NS5B. Here we describe the profile of BMS-790052, a small molecule inhibitor of the HCV NS5A protein that exhibits picomolar half-maximum effective concentrations (EC(50)) towards replicons expressing a broad range of HCV genotypes and the JFH-1 genotype 2a infectious virus in cell culture. In a phase I clinical trial in patients chronically infected with HCV, administration of a single 100-mg dose of BMS-790052 was associated with a 3.3 log(10) reduction in mean viral load measured 24 h post-dose that was sustained for an additional 120 h in two patients infected with genotype 1b virus. Genotypic analysis of samples taken at baseline, 24 and 144 h post-dose revealed that the major HCV variants observed had substitutions at amino-acid positions identified using the in vitro replicon system. These results provide the first clinical validation of an inhibitor of HCV NS5A, a protein with no known enzymatic function, as an approach to the suppression of virus replication that offers potential as part of a therapeutic regimen based on combinations of HCV inhibitors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gao, Min -- Nettles, Richard E -- Belema, Makonen -- Snyder, Lawrence B -- Nguyen, Van N -- Fridell, Robert A -- Serrano-Wu, Michael H -- Langley, David R -- Sun, Jin-Hua -- O'Boyle, Donald R 2nd -- Lemm, Julie A -- Wang, Chunfu -- Knipe, Jay O -- Chien, Caly -- Colonno, Richard J -- Grasela, Dennis M -- Meanwell, Nicholas A -- Hamann, Lawrence G -- England -- Nature. 2010 May 6;465(7294):96-100. doi: 10.1038/nature08960. Epub 2010 Apr 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Virology, Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut 06492, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20410884" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Animals ; Antiviral Agents/blood/chemistry/*pharmacology/therapeutic use ; Cell Line ; Cercopithecus aethiops ; Drug Resistance, Viral ; Female ; Genotype ; HeLa Cells ; Hepacivirus/*drug effects ; Hepatitis C/drug therapy/virology ; Humans ; Imidazoles/blood/chemistry/*pharmacology ; Inhibitory Concentration 50 ; Male ; Middle Aged ; Time Factors ; Vero Cells ; Viral Load/drug effects ; Viral Nonstructural Proteins/*antagonists & inhibitors ; Young Adult
    Print ISSN: 0028-0836
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 12
    Publication Date: 2010-08-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cockburn, Andrew -- England -- Nature. 2010 Aug 19;466(7309):930-1. doi: 10.1038/466930a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20725030" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Birds/classification/genetics/*physiology ; *Cooperative Behavior ; Fathers ; Female ; Male ; Models, Biological ; Mothers ; Phylogeny ; Reproduction/genetics/physiology ; Sexual Behavior, Animal/*physiology ; *Siblings
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  • 13
    Publication Date: 2010-10-15
    Description: The evolution and maintenance of sexual reproduction has puzzled biologists for decades. Although this field is rich in hypotheses, experimental evidence is scarce. Some important experiments have demonstrated differences in evolutionary rates between sexual and asexual populations; other experiments have documented evolutionary changes in phenomena related to genetic mixing, such as recombination and selfing. However, direct experiments of the evolution of sex within populations are extremely rare (but see ref. 12). Here we use the rotifer, Brachionus calyciflorus, which is capable of both sexual and asexual reproduction, to test recent theory predicting that there is more opportunity for sex to evolve in spatially heterogeneous environments. Replicated experimental populations of rotifers were maintained in homogeneous environments, composed of either high- or low-quality food habitats, or in heterogeneous environments that consisted of a mix of the two habitats. For populations maintained in either type of homogeneous environment, the rate of sex evolves rapidly towards zero. In contrast, higher rates of sex evolve in populations experiencing spatially heterogeneous environments. The data indicate that the higher level of sex observed under heterogeneity is not due to sex being less costly or selection against sex being less efficient; rather sex is sufficiently advantageous in heterogeneous environments to overwhelm its inherent costs. Counter to some alternative theories for the evolution of sex, there is no evidence that genetic drift plays any part in the evolution of sex in these populations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Becks, Lutz -- Agrawal, Aneil F -- England -- Nature. 2010 Nov 4;468(7320):89-92. doi: 10.1038/nature09449. Epub 2010 Oct 13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ecology & Evolutionary Biology, University of Toronto, Toronto, Ontario M5S 3B2, Canada. lutz.becks@utoronto.ca〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20944628" target="_blank"〉PubMed〈/a〉
    Keywords: Animal Migration/physiology ; Animals ; *Biological Evolution ; Diet/veterinary ; *Ecosystem ; Female ; *Food ; Genetic Drift ; Male ; Meiosis/genetics ; Models, Biological ; Ovum/physiology ; Population Density ; Reproduction/physiology ; Reproduction, Asexual/physiology ; Rotifera/cytology/genetics/*physiology ; Selection, Genetic ; *Sex
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  • 14
    Publication Date: 2010-08-06
    Description: Long interspersed element-1 (LINE-1 or L1) retrotransposition continues to affect human genome evolution. L1s can retrotranspose in the germline, during early development and in select somatic cells; however, the host response to L1 retrotransposition remains largely unexplored. Here we show that reporter genes introduced into the genome of various human embryonic carcinoma-derived cell lines (ECs) by L1 retrotransposition are rapidly and efficiently silenced either during or immediately after their integration. Treating ECs with histone deacetylase inhibitors rapidly reverses this silencing, and chromatin immunoprecipitation experiments revealed that reactivation of the reporter gene was correlated with changes in chromatin status at the L1 integration site. Under our assay conditions, rapid silencing was also observed when reporter genes were delivered into ECs by mouse L1s and a zebrafish LINE-2 element, but not when similar reporter genes were delivered into ECs by Moloney murine leukaemia virus or human immunodeficiency virus, suggesting that these integration events are silenced by distinct mechanisms. Finally, we demonstrate that subjecting ECs to culture conditions that promote differentiation attenuates the silencing of reporter genes delivered by L1 retrotransposition, but that differentiation, in itself, is not sufficient to reactivate previously silenced reporter genes. Thus, our data indicate that ECs differ from many differentiated cells in their ability to silence reporter genes delivered by L1 retrotransposition.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3034402/" 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/PMC3034402/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Garcia-Perez, Jose L -- Morell, Maria -- Scheys, Joshua O -- Kulpa, Deanna A -- Morell, Santiago -- Carter, Christoph C -- Hammer, Gary D -- Collins, Kathleen L -- O'Shea, K Sue -- Menendez, Pablo -- Moran, John V -- 5 P30 CA46592/CA/NCI NIH HHS/ -- GM-069985/GM/NIGMS NIH HHS/ -- GM060518/GM/NIGMS NIH HHS/ -- GM082970/GM/NIGMS NIH HHS/ -- NS-048187/NS/NINDS NIH HHS/ -- R01 DK62027/DK/NIDDK NIH HHS/ -- R01 GM060518/GM/NIGMS NIH HHS/ -- R01 GM060518-12/GM/NIGMS NIH HHS/ -- R01 GM082970/GM/NIGMS NIH HHS/ -- R01 GM082970-04/GM/NIGMS NIH HHS/ -- R01AI051198/AI/NIAID NIH HHS/ -- T32-GM08322/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2010 Aug 5;466(7307):769-73. doi: 10.1038/nature09209.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Human Genetics, 1241 East Catherine Street, University of Michigan Medical School, Ann Arbor, Michigan 48109-5618, USA. josel.garcia.perez@juntadeandalucia.es〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20686575" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Differentiation/genetics/physiology ; Cell Line, Tumor ; Chromatin/drug effects/genetics/metabolism ; Chromatin Immunoprecipitation ; Embryonal Carcinoma Stem Cells/*metabolism/pathology ; Epigenesis, Genetic/drug effects/*genetics ; Female ; Gene Expression Regulation, Neoplastic/drug effects ; *Gene Silencing/drug effects ; Genes, Reporter/genetics ; Genetic Engineering ; Genetic Vectors/genetics ; Genome, Human/genetics ; HIV/genetics ; Histone Deacetylase Inhibitors/pharmacology ; Humans ; Long Interspersed Nucleotide Elements/genetics ; Male ; Mice ; Models, Genetic ; Moloney murine leukemia virus/genetics ; Retroelements/*genetics ; Zebrafish/genetics
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  • 15
    Publication Date: 2010-12-24
    Description: Impulsivity, describing action without foresight, is an important feature of several psychiatric diseases, suicidality and violent behaviour. The complex origins of impulsivity hinder identification of the genes influencing it and the diseases with which it is associated. Here we perform exon-focused sequencing of impulsive individuals in a founder population, targeting fourteen genes belonging to the serotonin and dopamine domain. A stop codon in HTR2B was identified that is common (minor allele frequency 〉 1%) but exclusive to Finnish people. Expression of the gene in the human brain was assessed, as well as the molecular functionality of the stop codon, which was associated with psychiatric diseases marked by impulsivity in both population and family-based analyses. Knockout of Htr2b increased impulsive behaviours in mice, indicative of predictive validity. Our study shows the potential for identifying and tracing effects of rare alleles in complex behavioural phenotypes using founder populations, and indicates a role for HTR2B in impulsivity.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3183507/" 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/PMC3183507/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bevilacqua, Laura -- Doly, Stephane -- Kaprio, Jaakko -- Yuan, Qiaoping -- Tikkanen, Roope -- Paunio, Tiina -- Zhou, Zhifeng -- Wedenoja, Juho -- Maroteaux, Luc -- Diaz, Silvina -- Belmer, Arnaud -- Hodgkinson, Colin A -- Dell'osso, Liliana -- Suvisaari, Jaana -- Coccaro, Emil -- Rose, Richard J -- Peltonen, Leena -- Virkkunen, Matti -- Goldman, David -- AA-09203/AA/NIAAA NIH HHS/ -- AA-12502/AA/NIAAA NIH HHS/ -- Z01 AA000301-09/Intramural NIH HHS/ -- Z01 AA000301-10/Intramural NIH HHS/ -- Z99 AA999999/Intramural NIH HHS/ -- England -- Nature. 2010 Dec 23;468(7327):1061-6. doi: 10.1038/nature09629.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Neurogenetics, National Institute on Alcohol Abuse and Alcoholism, NIH, Rockville, Maryland 20852, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21179162" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/metabolism ; Case-Control Studies ; Cell Line ; Female ; Finland ; Founder Effect ; Gene Expression Regulation ; Gene Knockout Techniques ; Genotype ; Humans ; Impulsive Behavior/*genetics ; Male ; Mental Disorders/genetics ; Mice ; Mice, 129 Strain ; Mice, Knockout ; Pedigree ; Polymorphism, Single Nucleotide/genetics ; Receptor, Serotonin, 5-HT2B/*genetics/*metabolism ; Testosterone/blood/cerebrospinal fluid
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  • 16
    Publication Date: 2010-03-23
    Description: Mesenchymal cells contribute to the 'stroma' of most normal and malignant tissues, with specific mesenchymal cells participating in the regulatory niches of stem cells. By examining how mesenchymal osteolineage cells modulate haematopoiesis, here we show that deletion of Dicer1 specifically in mouse osteoprogenitors, but not in mature osteoblasts, disrupts the integrity of haematopoiesis. Myelodysplasia resulted and acute myelogenous leukaemia emerged that had acquired several genetic abnormalities while having intact Dicer1. Examining gene expression altered in osteoprogenitors as a result of Dicer1 deletion showed reduced expression of Sbds, the gene mutated in Schwachman-Bodian-Diamond syndrome-a human bone marrow failure and leukaemia pre-disposition condition. Deletion of Sbds in mouse osteoprogenitors induced bone marrow dysfunction with myelodysplasia. Therefore, perturbation of specific mesenchymal subsets of stromal cells can disorder differentiation, proliferation and apoptosis of heterologous cells, and disrupt tissue homeostasis. Furthermore, primary stromal dysfunction can result in secondary neoplastic disease, supporting the concept of niche-induced oncogenesis.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3422863/" 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/PMC3422863/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Raaijmakers, Marc H G P -- Mukherjee, Siddhartha -- Guo, Shangqin -- Zhang, Siyi -- Kobayashi, Tatsuya -- Schoonmaker, Jesse A -- Ebert, Benjamin L -- Al-Shahrour, Fatima -- Hasserjian, Robert P -- Scadden, Edward O -- Aung, Zinmar -- Matza, Marc -- Merkenschlager, Matthias -- Lin, Charles -- Rommens, Johanna M -- Scadden, David T -- MC_U120027516/Medical Research Council/United Kingdom -- R01 DK050234/DK/NIDDK NIH HHS/ -- R01 HL044851/HL/NHLBI NIH HHS/ -- R01 HL097794/HL/NHLBI NIH HHS/ -- U01 HL100402/HL/NHLBI NIH HHS/ -- U54 HL081030/HL/NHLBI NIH HHS/ -- England -- Nature. 2010 Apr 8;464(7290):852-7. doi: 10.1038/nature08851. Epub 2010 Mar 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Regenerative Medicine, Massachusetts General Hospital and Harvard Medical School CPZN, USA. hraaijmakers@partners.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20305640" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bone Marrow/metabolism/pathology ; Bone and Bones/metabolism/*pathology ; Cell Differentiation ; Cell Lineage ; Female ; Gene Deletion ; Hematopoiesis/genetics ; Leukemia, Myeloid, Acute/genetics/metabolism/*pathology ; Male ; Mesoderm/cytology ; Mice ; Myelodysplastic Syndromes/genetics/metabolism/*pathology ; Osteoblasts/metabolism/pathology ; Phenotype ; Proteins/genetics/metabolism ; Ribonuclease III/deficiency/genetics/metabolism ; Sarcoma, Myeloid/genetics/metabolism/pathology ; Stem Cell Niche/metabolism/pathology ; Stem Cells/metabolism/*pathology ; Stromal Cells/metabolism/pathology
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  • 17
    Publication Date: 2010-08-27
    Description: Eusociality, in which some individuals reduce their own lifetime reproductive potential to raise the offspring of others, underlies the most advanced forms of social organization and the ecologically dominant role of social insects and humans. For the past four decades kin selection theory, based on the concept of inclusive fitness, has been the major theoretical attempt to explain the evolution of eusociality. Here we show the limitations of this approach. We argue that standard natural selection theory in the context of precise models of population structure represents a simpler and superior approach, allows the evaluation of multiple competing hypotheses, and provides an exact framework for interpreting empirical observations.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3279739/" 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/PMC3279739/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nowak, Martin A -- Tarnita, Corina E -- Wilson, Edward O -- R01 GM078986/GM/NIGMS NIH HHS/ -- R01 GM078986-04/GM/NIGMS NIH HHS/ -- R01GM078986/GM/NIGMS NIH HHS/ -- England -- Nature. 2010 Aug 26;466(7310):1057-62. doi: 10.1038/nature09205.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Program for Evolutionary Dynamics, Department of Mathematics, Harvard University, Cambridge, Massachusetts 02138, USA. martin_nowak@harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20740005" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Behavior, Animal/*physiology ; *Biological Evolution ; Female ; Humans ; Insects/physiology ; Male ; Models, Biological ; Selection, Genetic ; *Social Behavior
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  • 18
    Publication Date: 2010-10-26
    Description: In songbirds, the remarkable temporal precision of song is generated by a sparse sequence of bursts in the premotor nucleus HVC. To distinguish between two possible classes of models of neural sequence generation, we carried out intracellular recordings of HVC neurons in singing zebra finches (Taeniopygia guttata). We found that the subthreshold membrane potential is characterized by a large, rapid depolarization 5-10 ms before burst onset, consistent with a synaptically connected chain of neurons in HVC. We found no evidence for the slow membrane potential modulation predicted by models in which burst timing is controlled by subthreshold dynamics. Furthermore, bursts ride on an underlying depolarization of approximately 10-ms duration, probably the result of a regenerative calcium spike within HVC neurons that could facilitate the propagation of activity through a chain network with high temporal precision. Our results provide insight into the fundamental mechanisms by which neural circuits can generate complex sequential behaviours.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2998755/" 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/PMC2998755/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Long, Michael A -- Jin, Dezhe Z -- Fee, Michale S -- DC009280/DC/NIDCD NIH HHS/ -- MH067105/MH/NIMH NIH HHS/ -- R01 MH067105/MH/NIMH NIH HHS/ -- R01 MH067105-06/MH/NIMH NIH HHS/ -- R01 MH067105-07/MH/NIMH NIH HHS/ -- England -- Nature. 2010 Nov 18;468(7322):394-9. doi: 10.1038/nature09514. Epub 2010 Oct 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉McGovern Institute for Brain Research, Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20972420" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Calcium Channels, L-Type/metabolism ; Calcium Signaling/drug effects ; Finches/*physiology ; Male ; Membrane Potentials/drug effects ; *Models, Neurological ; Neural Pathways/drug effects/*physiology ; Neurons/drug effects/*metabolism ; Sleep/physiology ; Synapses/*metabolism ; Vocalization, Animal/physiology
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  • 19
    Publication Date: 2010-05-28
    Description: CD95 (also called Fas and APO-1) is a prototypical death receptor that regulates tissue homeostasis mainly in the immune system through the induction of apoptosis. During cancer progression CD95 is frequently downregulated or cells are rendered apoptosis resistant, raising the possibility that loss of CD95 is part of a mechanism for tumour evasion. However, complete loss of CD95 is rarely seen in human cancers and many cancer cells express large quantities of CD95 and are highly sensitive to CD95-mediated apoptosis in vitro. Furthermore, cancer patients frequently have elevated levels of the physiological ligand for CD95, CD95L. These data raise the possibility that CD95 could actually promote the growth of tumours through its non-apoptotic activities. Here we show that cancer cells in general, regardless of their CD95 apoptosis sensitivity, depend on constitutive activity of CD95, stimulated by cancer-produced CD95L, for optimal growth. Consistently, loss of CD95 in mouse models of ovarian cancer and liver cancer reduces cancer incidence as well as the size of the tumours. The tumorigenic activity of CD95 is mediated by a pathway involving JNK and Jun. These results demonstrate that CD95 has a growth-promoting role during tumorigenesis and indicate that efforts to inhibit its activity rather than to enhance it should be considered during cancer therapy.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2879093/" 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/PMC2879093/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Lina -- Park, Sun-Mi -- Tumanov, Alexei V -- Hau, Annika -- Sawada, Kenjiro -- Feig, Christine -- Turner, Jerrold R -- Fu, Yang-Xin -- Romero, Iris L -- Lengyel, Ernst -- Peter, Marcus E -- CA112240/CA/NCI NIH HHS/ -- K12 HD000849/HD/NICHD NIH HHS/ -- L30 CA153336/CA/NCI NIH HHS/ -- R01 CA095319/CA/NCI NIH HHS/ -- R01 CA11182/CA/NCI NIH HHS/ -- R01 CA112240/CA/NCI NIH HHS/ -- R01 CA112240-01A1/CA/NCI NIH HHS/ -- R01 CA112240-02/CA/NCI NIH HHS/ -- R01 CA112240-03/CA/NCI NIH HHS/ -- R01 CA112240-04/CA/NCI NIH HHS/ -- R01 CA112240-05/CA/NCI NIH HHS/ -- England -- Nature. 2010 May 27;465(7297):492-6. doi: 10.1038/nature09075.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Ben May Department for Cancer Research, The University of Chicago, 924 E 57th Street, Chicago, Illinois 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20505730" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD95/deficiency/genetics/*metabolism ; Apoptosis ; Carcinoma, Endometrioid/metabolism/pathology ; Cell Line, Tumor ; Cell Proliferation ; Fas Ligand Protein/antagonists & inhibitors/immunology/metabolism ; Female ; Gene Expression Regulation, Neoplastic ; Hepatocytes/enzymology/metabolism/pathology ; Humans ; Liver Neoplasms/enzymology/metabolism/pathology ; Male ; Mice ; Mitogen-Activated Protein Kinase 8/deficiency/genetics/metabolism ; Neoplasms/*metabolism/*pathology ; Ovarian Neoplasms/metabolism/pathology
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  • 20
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    Nature Publishing Group (NPG)
    Publication Date: 2010-10-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Okasha, Samir -- England -- Nature. 2010 Oct 7;467(7316):653-5. doi: 10.1038/467653a.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Philosophy, University of Bristol, Bristol BS8 1TB, UK. Samir.Okasha@bristol.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20930821" target="_blank"〉PubMed〈/a〉
    Keywords: *Altruism ; Animals ; Biological Evolution ; *Cooperative Behavior ; Female ; Group Processes ; Male ; Models, Biological ; *Research Personnel ; Selection, Genetic ; Social Behavior
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  • 21
    Publication Date: 2009-12-18
    Description: All cancers carry somatic mutations. A subset of these somatic alterations, termed driver mutations, confer selective growth advantage and are implicated in cancer development, whereas the remainder are passengers. Here we have sequenced the genomes of a malignant melanoma and a lymphoblastoid cell line from the same person, providing the first comprehensive catalogue of somatic mutations from an individual cancer. The catalogue provides remarkable insights into the forces that have shaped this cancer genome. The dominant mutational signature reflects DNA damage due to ultraviolet light exposure, a known risk factor for malignant melanoma, whereas the uneven distribution of mutations across the genome, with a lower prevalence in gene footprints, indicates that DNA repair has been preferentially deployed towards transcribed regions. The results illustrate the power of a cancer genome sequence to reveal traces of the DNA damage, repair, mutation and selection processes that were operative years before the cancer became symptomatic.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3145108/" 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/PMC3145108/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pleasance, Erin D -- Cheetham, R Keira -- Stephens, Philip J -- McBride, David J -- Humphray, Sean J -- Greenman, Chris D -- Varela, Ignacio -- Lin, Meng-Lay -- Ordonez, Gonzalo R -- Bignell, Graham R -- Ye, Kai -- Alipaz, Julie -- Bauer, Markus J -- Beare, David -- Butler, Adam -- Carter, Richard J -- Chen, Lina -- Cox, Anthony J -- Edkins, Sarah -- Kokko-Gonzales, Paula I -- Gormley, Niall A -- Grocock, Russell J -- Haudenschild, Christian D -- Hims, Matthew M -- James, Terena -- Jia, Mingming -- Kingsbury, Zoya -- Leroy, Catherine -- Marshall, John -- Menzies, Andrew -- Mudie, Laura J -- Ning, Zemin -- Royce, Tom -- Schulz-Trieglaff, Ole B -- Spiridou, Anastassia -- Stebbings, Lucy A -- Szajkowski, Lukasz -- Teague, Jon -- Williamson, David -- Chin, Lynda -- Ross, Mark T -- Campbell, Peter J -- Bentley, David R -- Futreal, P Andrew -- Stratton, Michael R -- 077012/Z/05/Z/Wellcome Trust/United Kingdom -- 088340/Wellcome Trust/United Kingdom -- 093867/Wellcome Trust/United Kingdom -- England -- Nature. 2010 Jan 14;463(7278):191-6. doi: 10.1038/nature08658. Epub 2009 Dec 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wellcome Trust Sanger Institute, Hinxton CB10 1SA, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20016485" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Cell Line, Tumor ; DNA Damage/genetics ; DNA Mutational Analysis ; DNA Repair/genetics ; Gene Dosage/genetics ; Genes, Neoplasm/*genetics ; Genome, Human/*genetics ; Humans ; Loss of Heterozygosity/genetics ; Male ; Melanoma/etiology/genetics ; MicroRNAs/genetics ; Mutagenesis, Insertional/genetics ; Mutation/*genetics ; Neoplasms/etiology/*genetics ; Polymorphism, Single Nucleotide/genetics ; Precision Medicine ; Sequence Deletion/genetics ; Ultraviolet Rays
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  • 22
    Publication Date: 2010-03-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barske, Lindsey A -- Capel, Blanche -- England -- Nature. 2010 Mar 11;464(7286):171-2. doi: 10.1038/464171a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20220830" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Birds/genetics/*physiology ; Chick Embryo ; Chickens ; Female ; Genotype ; Humans ; Male ; Mice ; Mosaicism ; Phenotype ; Sex Characteristics ; Sex Chromosomes/genetics ; *Sex Determination Processes
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  • 23
    Publication Date: 2010-06-25
    Description: Injury to the primary visual cortex (V1) leads to the loss of visual experience. Nonetheless, careful testing shows that certain visually guided behaviours can persist even in the absence of visual awareness. The neural circuits supporting this phenomenon, which is often termed blindsight, remain uncertain. Here we demonstrate that the thalamic lateral geniculate nucleus (LGN) has a causal role in V1-independent processing of visual information. By comparing functional magnetic resonance imaging (fMRI) and behavioural measures with and without temporary LGN inactivation, we assessed the contribution of the LGN to visual functions of macaque monkeys (Macaca mulatta) with chronic V1 lesions. Before LGN inactivation, high-contrast stimuli presented to the lesion-affected visual field (scotoma) produced significant V1-independent fMRI activation in the extrastriate cortical areas V2, V3, V4, V5/middle temporal (MT), fundus of the superior temporal sulcus (FST) and lateral intraparietal area (LIP) and the animals correctly located the stimuli in a detection task. However, following reversible inactivation of the LGN in the V1-lesioned hemisphere, fMRI responses and behavioural detection were abolished. These results demonstrate that direct LGN projections to the extrastriate cortex have a critical functional contribution to blindsight. They suggest a viable pathway to mediate fast detection during normal vision.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2904843/" 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/PMC2904843/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schmid, Michael C -- Mrowka, Sylwia W -- Turchi, Janita -- Saunders, Richard C -- Wilke, Melanie -- Peters, Andrew J -- Ye, Frank Q -- Leopold, David A -- Z01 MH002838-05/Intramural NIH HHS/ -- England -- Nature. 2010 Jul 15;466(7304):373-7. doi: 10.1038/nature09179. Epub 2010 Jun 23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Neuropsychology, National Institute of Mental Health (NIMH), 49 Convent Drive, Bethesda, Maryland 20892, USA. schmidmicha@gmail.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20574422" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Female ; Geniculate Bodies/*physiology/physiopathology ; Macaca mulatta/*physiology ; Male ; Models, Neurological ; Photic Stimulation ; Visual Cortex/physiology/physiopathology ; Visual Pathways/*physiology/physiopathology ; Visual Perception/*physiology
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  • 24
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    Nature Publishing Group (NPG)
    Publication Date: 2010-02-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lincoln, Tim -- England -- Nature. 2010 Feb 18;463(7283):888. doi: 10.1038/463888a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20164914" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bird Diseases/*epidemiology/microbiology/transmission ; Cues ; Feeding Behavior/*physiology ; Female ; Finches/*physiology ; Male ; Mycoplasma Infections/epidemiology/microbiology/transmission/*veterinary ; *Mycoplasma gallisepticum/pathogenicity ; Sex Factors
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  • 25
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    Nature Publishing Group (NPG)
    Publication Date: 2010-04-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Venter, J Craig -- England -- Nature. 2010 Apr 1;464(7289):676-7. doi: 10.1038/464676a.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉J. Craig Venter Institute, La Jolla, California 92121, USA. jcventer@jcvi.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20360717" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Continental Population Groups/genetics ; Diploidy ; Female ; Genetic Predisposition to Disease/genetics ; Genetic Variation/genetics ; Genetics, Medical/*trends ; Genome, Human/*genetics ; Genomics/economics/history/*trends ; Haploidy ; Haplotypes/genetics ; History, 20th Century ; History, 21st Century ; Human Genome Project/economics/history ; Humans ; Male ; Phenotype ; Precision Medicine/*trends ; Sequence Analysis, DNA/economics/history/instrumentation/methods
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  • 26
    Publication Date: 2010-02-16
    Description: Haematopoietic stem cells (HSCs), responsible for blood production in the adult mouse, are first detected in the dorsal aorta starting at embryonic day 10.5 (E10.5). Immunohistological analysis of fixed embryo sections has revealed the presence of haematopoietic cell clusters attached to the aortic endothelium where HSCs might localize. The origin of HSCs has long been controversial and several candidates of the direct HSC precursors have been proposed (for review see ref. 7), including a specialized endothelial cell population with a haemogenic potential. Such cells have been described both in vitro in the embryonic stem cell (ESC) culture system and retrospectively in vivo by endothelial lineage tracing and conditional deletion experiments. Whether the transition from haemogenic endothelium to HSC actually occurs in the mouse embryonic aorta is still unclear and requires direct and real-time in vivo observation. To address this issue we used time-lapse confocal imaging and a new dissection procedure to visualize the deeply located aorta. Here we show the dynamic de novo emergence of phenotypically defined HSCs (Sca1(+), c-kit(+), CD41(+)) directly from ventral aortic haemogenic endothelial cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boisset, Jean-Charles -- van Cappellen, Wiggert -- Andrieu-Soler, Charlotte -- Galjart, Niels -- Dzierzak, Elaine -- Robin, Catherine -- R37 DKO54077/PHS HHS/ -- England -- Nature. 2010 Mar 4;464(7285):116-20. doi: 10.1038/nature08764. Epub 2010 Feb 14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Erasmus Medical Center, Department of Cell Biology, CA Rotterdam, The Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20154729" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aorta/*cytology/embryology/surgery ; *Cell Differentiation ; *Cell Lineage ; Core Binding Factor Alpha 2 Subunit/deficiency/genetics/metabolism ; Dissection ; Embryo, Mammalian/cytology ; Endothelial Cells/cytology ; Endothelium, Vascular/*cytology/embryology ; Female ; Hematopoietic Stem Cells/*cytology ; Male ; Mice ; Microscopy, Confocal ; Phenotype ; Pregnancy
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  • 27
    Publication Date: 2010-07-24
    Description: Learning new action sequences subserves a plethora of different abilities such as escaping a predator, playing the piano, or producing fluent speech. Proper initiation and termination of each action sequence is critical for the organization of behaviour, and is compromised in nigrostriatal disorders like Parkinson's and Huntington's diseases. Using a self-paced operant task in which mice learn to perform a particular sequence of actions to obtain an outcome, we found neural activity in nigrostriatal circuits specifically signalling the initiation or the termination of each action sequence. This start/stop activity emerged during sequence learning, was specific for particular actions, and did not reflect interval timing, movement speed or action value. Furthermore, genetically altering the function of striatal circuits disrupted the development of start/stop activity and selectively impaired sequence learning. These results have important implications for understanding the functional organization of actions and the sequence initiation and termination impairments observed in basal ganglia disorders.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3477867/" 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/PMC3477867/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jin, Xin -- Costa, Rui M -- 243393/European Research Council/International -- Z01 AA000416-02/Intramural NIH HHS/ -- England -- Nature. 2010 Jul 22;466(7305):457-62. doi: 10.1038/nature09263.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory for Integrative Neuroscience, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, 5625 Fishers Lane, Bethesda, Maryland 20892-9412, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20651684" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Behavior, Animal/physiology ; Dopamine/metabolism ; Glutamic Acid/metabolism ; Learning/*physiology ; Male ; Mice ; Mice, Inbred C57BL ; Models, Neurological ; Neostriatum/*physiology ; Neural Pathways/*physiology ; Receptors, N-Methyl-D-Aspartate/deficiency/genetics/metabolism ; Substantia Nigra/*physiology
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  • 28
    Publication Date: 2010-07-14
    Description: The NAD-dependent deacetylase Sir2 was initially identified as a mediator of replicative lifespan in budding yeast and was subsequently shown to modulate longevity in worms and flies. Its mammalian homologue, SIRT1, seems to have evolved complex systemic roles in cardiac function, DNA repair and genomic stability. Recent studies suggest a functional relevance of SIRT1 in normal brain physiology and neurological disorders. However, it is unknown if SIRT1 has a role in higher-order brain functions. We report that SIRT1 modulates synaptic plasticity and memory formation via a microRNA-mediated mechanism. Activation of SIRT1 enhances, whereas its loss-of-function impairs, synaptic plasticity. Surprisingly, these effects were mediated via post-transcriptional regulation of cAMP response binding protein (CREB) expression by a brain-specific microRNA, miR-134. SIRT1 normally functions to limit expression of miR-134 via a repressor complex containing the transcription factor YY1, and unchecked miR-134 expression following SIRT1 deficiency results in the downregulated expression of CREB and brain-derived neurotrophic factor (BDNF), thereby impairing synaptic plasticity. These findings demonstrate a new role for SIRT1 in cognition and a previously unknown microRNA-based mechanism by which SIRT1 regulates these processes. Furthermore, these results describe a separate branch of SIRT1 signalling, in which SIRT1 has a direct role in regulating normal brain function in a manner that is disparate from its cell survival functions, demonstrating its value as a potential therapeutic target for the treatment of central nervous system disorders.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2928875/" 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/PMC2928875/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gao, Jun -- Wang, Wen-Yuan -- Mao, Ying-Wei -- Graff, Johannes -- Guan, Ji-Song -- Pan, Ling -- Mak, Gloria -- Kim, Dohoon -- Su, Susan C -- Tsai, Li-Huei -- P01 AG027916/AG/NIA NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2010 Aug 26;466(7310):1105-9. doi: 10.1038/nature09271. Epub 2010 Jul 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Picower Institute for Learning and Memory, Department of Brain and Cognitive Sciences, 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/20622856" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain-Derived Neurotrophic Factor/metabolism ; CREB-Binding Protein/metabolism ; Electrical Synapses/genetics/pathology ; Gene Expression Regulation ; Gene Knockdown Techniques ; Long-Term Potentiation/genetics ; Male ; Memory/*physiology ; Memory Disorders/genetics/physiopathology ; Mice ; MicroRNAs/*genetics/*metabolism ; Neuronal Plasticity/*genetics ; Protein Binding ; Sequence Deletion ; Sirtuin 1/*genetics/*metabolism
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  • 29
    Publication Date: 2010-07-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bolon, Brad -- England -- Nature. 2010 Jul 1;466(7302):28. doi: 10.1038/466028d.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20595991" target="_blank"〉PubMed〈/a〉
    Keywords: Animal Experimentation/standards ; Animals ; Animals, Laboratory ; *Bias (Epidemiology) ; Clinical Trials as Topic ; Editorial Policies ; Female ; Humans ; Male ; *Models, Animal ; *Research Design ; *Sex Characteristics
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  • 30
    Publication Date: 2010-10-29
    Description: Sex determination is a fundamental biological process, yet its mechanisms are remarkably diverse. In vertebrates, sex can be determined by inherited genetic factors or by the temperature experienced during embryonic development. However, the evolutionary causes of this diversity remain unknown. Here we show that live-bearing lizards at different climatic extremes of the species' distribution differ in their sex-determining mechanisms, with temperature-dependent sex determination in lowlands and genotypic sex determination in highlands. A theoretical model parameterized with field data accurately predicts this divergence in sex-determining systems and the consequence thereof for variation in cohort sex ratios among years. Furthermore, we show that divergent natural selection on sex determination across altitudes is caused by climatic effects on lizard life history and variation in the magnitude of between-year temperature fluctuations. Our results establish an adaptive explanation for intra-specific divergence in sex-determining systems driven by phenotypic plasticity and ecological selection, thereby providing a unifying framework for integrating the developmental, ecological and evolutionary basis for variation in vertebrate sex determination.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pen, Ido -- Uller, Tobias -- Feldmeyer, Barbara -- Harts, Anna -- While, Geoffrey M -- Wapstra, Erik -- England -- Nature. 2010 Nov 18;468(7322):436-8. doi: 10.1038/nature09512. Epub 2010 Oct 27.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Theoretical Biology Group, University of Groningen, PO Box 14, 9750 AA Haren, the Netherlands. i.r.pen@rug.nl〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20981009" target="_blank"〉PubMed〈/a〉
    Keywords: Altitude ; Animals ; Biological Evolution ; *Climate ; Female ; Genotype ; Lizards/*genetics/*physiology ; Male ; Models, Biological ; Phenotype ; Selection, Genetic ; Sex Chromosomes ; *Sex Determination Processes/genetics/physiology ; *Sex Differentiation/genetics/physiology ; Sex Ratio ; *Temperature ; Time Factors ; Viviparity, Nonmammalian/physiology
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  • 31
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    Nature Publishing Group (NPG)
    Publication Date: 2010-08-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Keverne, Eric B -- England -- Nature. 2010 Aug 12;466(7308):823-4. doi: 10.1038/466823a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20703293" target="_blank"〉PubMed〈/a〉
    Keywords: *Alleles ; Animals ; Bias (Epidemiology) ; Brain/cytology/*metabolism ; Fathers ; Female ; Genomic Imprinting/*genetics ; Male ; Mice ; Models, Genetic ; Mothers ; X Chromosome/genetics
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  • 32
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    Nature Publishing Group (NPG)
    Publication Date: 2010-06-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cyranoski, David -- England -- Nature. 2010 Jun 24;465(7301):997. doi: 10.1038/465997a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20577182" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Child ; Fatal Outcome ; Female ; *Hematopoietic Stem Cell Transplantation/adverse effects ; Humans ; Lupus Nephritis/*complications/*therapy ; Male ; Thailand
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  • 33
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    Nature Publishing Group (NPG)
    Publication Date: 2010-09-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Persons, Derek A -- England -- Nature. 2010 Sep 16;467(7313):277-8. doi: 10.1038/467277a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20844523" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Blood Cells/cytology/metabolism ; Blood Transfusion ; Clone Cells/metabolism ; *Genetic Therapy ; HMGA2 Protein/genetics/*metabolism ; Humans ; Male ; Time Factors ; Transcriptional Activation ; Young Adult ; beta-Globins/*genetics/*metabolism ; beta-Thalassemia/*genetics/metabolism/*therapy
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  • 34
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    Nature Publishing Group (NPG)
    Publication Date: 2010-04-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Borrell, Brendan -- England -- Nature. 2010 Apr 22;464(7292):1122-4. doi: 10.1038/4641122a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20414285" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Benzhydryl Compounds ; Chemical Industry/methods/standards ; Endocrine Disruptors/adverse effects/toxicity ; Estrogens, Non-Steroidal/adverse effects/toxicity ; Female ; Guidelines as Topic ; Humans ; Infant ; Male ; Mice ; National Institute of Environmental Health Sciences (U.S.) ; Neoplasms/chemically induced/etiology ; Phenols/adverse effects/*toxicity ; Rats ; Toxicity Tests/methods/standards ; Toxicology/economics/*methods/*standards ; United States ; United States Environmental Protection Agency ; Validation Studies as Topic
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  • 35
    Publication Date: 2010-06-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, Alison M -- Tingen, Candace M -- Woodruff, Teresa K -- England -- Nature. 2010 Jun 10;465(7299):688-9. doi: 10.1038/465688a.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20535184" target="_blank"〉PubMed〈/a〉
    Keywords: Bias (Epidemiology) ; Biomedical Research/methods/*trends ; Clinical Trials as Topic/methods/*trends ; Drug Dosage Calculations ; Female ; Genomic Imprinting ; Humans ; Male ; Precision Medicine/trends ; *Sex Characteristics ; Sex Distribution ; Sex Factors
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  • 36
    Publication Date: 2010-01-15
    Description: Immune homeostasis is dependent on tight control over the size of a population of regulatory T (T(reg)) cells capable of suppressing over-exuberant immune responses. The T(reg) cell subset is comprised of cells that commit to the T(reg) lineage by upregulating the transcription factor Foxp3 either in the thymus (tT(reg)) or in the periphery (iT(reg)). Considering a central role for Foxp3 in T(reg) cell differentiation and function, we proposed that conserved non-coding DNA sequence (CNS) elements at the Foxp3 locus encode information defining the size, composition and stability of the T(reg) cell population. Here we describe the function of three Foxp3 CNS elements (CNS1-3) in T(reg) cell fate determination in mice. The pioneer element CNS3, which acts to potently increase the frequency of T(reg) cells generated in the thymus and the periphery, binds c-Rel in in vitro assays. In contrast, CNS1, which contains a TGF-beta-NFAT response element, is superfluous for tT(reg) cell differentiation, but has a prominent role in iT(reg) cell generation in gut-associated lymphoid tissues. CNS2, although dispensable for Foxp3 induction, is required for Foxp3 expression in the progeny of dividing T(reg) cells. Foxp3 binds to CNS2 in a Cbf-beta-Runx1 and CpG DNA demethylation-dependent manner, suggesting that Foxp3 recruitment to this 'cellular memory module' facilitates the heritable maintenance of the active state of the Foxp3 locus and, therefore, T(reg) lineage stability. Together, our studies demonstrate that the composition, size and maintenance of the T(reg) cell population are controlled by Foxp3 CNS elements engaged in response to distinct cell-extrinsic or -intrinsic cues.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2884187/" 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/PMC2884187/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zheng, Ye -- Josefowicz, Steven -- Chaudhry, Ashutosh -- Peng, Xiao P -- Forbush, Katherine -- Rudensky, Alexander Y -- R37 AI034206/AI/NIAID NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2010 Feb 11;463(7282):808-12. doi: 10.1038/nature08750. Epub 2010 Jan 13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Department of Immunology, University of Washington, Seattle, Washington 98195, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20072126" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Differentiation ; Cell Lineage/*genetics ; Chromatin Assembly and Disassembly ; Conserved Sequence/*genetics ; CpG Islands/genetics ; DNA Methylation ; Female ; Forkhead Transcription Factors/*genetics/metabolism ; Gene Expression Regulation ; Lymphocyte Count ; Male ; Mice ; Mice, Inbred C57BL ; Proto-Oncogene Proteins c-rel/metabolism ; Regulatory Sequences, Nucleic Acid/*genetics ; Response Elements/genetics ; T-Lymphocytes, Regulatory/*cytology/immunology/*metabolism ; Thymus Gland/cytology/immunology/metabolism
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  • 37
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    Nature Publishing Group (NPG)
    Publication Date: 2010-03-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hughes, Virginia -- England -- Nature. 2010 Mar 18;464(7287):340-2. doi: 10.1038/464340a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20237536" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Antisocial Personality Disorder/physiopathology/psychology ; Child ; Female ; Forensic Sciences/ethics/*methods/trends ; Homicide/*legislation & jurisprudence/*psychology ; Humans ; Insanity Defense ; Magnetic Resonance Imaging/standards/*utilization ; Male ; *Neurosciences ; Positron-Emission Tomography/utilization ; Rape/legislation & jurisprudence/psychology ; Reproducibility of Results
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  • 38
    Publication Date: 2010-04-30
    Description: Monozygotic or 'identical' twins have been widely studied to dissect the relative contributions of genetics and environment in human diseases. In multiple sclerosis (MS), an autoimmune demyelinating disease and common cause of neurodegeneration and disability in young adults, disease discordance in monozygotic twins has been interpreted to indicate environmental importance in its pathogenesis. However, genetic and epigenetic differences between monozygotic twins have been described, challenging the accepted experimental model in disambiguating the effects of nature and nurture. Here we report the genome sequences of one MS-discordant monozygotic twin pair, and messenger RNA transcriptome and epigenome sequences of CD4(+) lymphocytes from three MS-discordant, monozygotic twin pairs. No reproducible differences were detected between co-twins among approximately 3.6 million single nucleotide polymorphisms (SNPs) or approximately 0.2 million insertion-deletion polymorphisms. Nor were any reproducible differences observed between siblings of the three twin pairs in HLA haplotypes, confirmed MS-susceptibility SNPs, copy number variations, mRNA and genomic SNP and insertion-deletion genotypes, or the expression of approximately 19,000 genes in CD4(+) T cells. Only 2 to 176 differences in the methylation of approximately 2 million CpG dinucleotides were detected between siblings of the three twin pairs, in contrast to approximately 800 methylation differences between T cells of unrelated individuals and several thousand differences between tissues or between normal and cancerous tissues. In the first systematic effort to estimate sequence variation among monozygotic co-twins, we did not find evidence for genetic, epigenetic or transcriptome differences that explained disease discordance. These are the first, to our knowledge, female, twin and autoimmune disease individual genome sequences reported.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2862593/" 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/PMC2862593/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baranzini, Sergio E -- Mudge, Joann -- van Velkinburgh, Jennifer C -- Khankhanian, Pouya -- Khrebtukova, Irina -- Miller, Neil A -- Zhang, Lu -- Farmer, Andrew D -- Bell, Callum J -- Kim, Ryan W -- May, Gregory D -- Woodward, Jimmy E -- Caillier, Stacy J -- McElroy, Joseph P -- Gomez, Refujia -- Pando, Marcelo J -- Clendenen, Leonda E -- Ganusova, Elena E -- Schilkey, Faye D -- Ramaraj, Thiruvarangan -- Khan, Omar A -- Huntley, Jim J -- Luo, Shujun -- Kwok, Pui-Yan -- Wu, Thomas D -- Schroth, Gary P -- Oksenberg, Jorge R -- Hauser, Stephen L -- Kingsmore, Stephen F -- P20 RR016480/RR/NCRR NIH HHS/ -- P20 RR016480-09/RR/NCRR NIH HHS/ -- R01 NS026799/NS/NINDS NIH HHS/ -- R01 NS026799-20A1/NS/NINDS NIH HHS/ -- R01 NS046297/NS/NINDS NIH HHS/ -- R01 NS046297-06/NS/NINDS NIH HHS/ -- R01NS26799/NS/NINDS NIH HHS/ -- R01NS46297/NS/NINDS NIH HHS/ -- RR016480/RR/NCRR NIH HHS/ -- U01 AI066569/AI/NIAID NIH HHS/ -- U01 AI066569-05/AI/NIAID NIH HHS/ -- U19 HD077693/HD/NICHD NIH HHS/ -- England -- Nature. 2010 Apr 29;464(7293):1351-6. doi: 10.1038/nature08990.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, University of California at San Francisco, San Francisco, California 94143, USA. sebaran@cgl.ucsf.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20428171" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Allelic Imbalance/genetics ; Breast/metabolism ; Breast Neoplasms/genetics ; CD4-Positive T-Lymphocytes/metabolism ; Case-Control Studies ; CpG Islands/genetics ; DNA Copy Number Variations/genetics ; DNA Methylation/genetics ; Epigenesis, Genetic/*genetics ; Female ; Genetic Predisposition to Disease/genetics ; Genome, Human/*genetics ; Haplotypes/genetics ; Heterozygote ; Humans ; INDEL Mutation/genetics ; Lung/metabolism ; Lung Neoplasms/genetics ; Male ; Multiple Sclerosis/*genetics ; Polymorphism, Genetic/genetics ; Quantitative Trait Loci/genetics ; RNA, Messenger/analysis/*genetics/metabolism ; Twins, Monozygotic/*genetics
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  • 39
    Publication Date: 2010-07-14
    Description: In birds, as in mammals, one pair of chromosomes differs between the sexes. In birds, males are ZZ and females ZW. In mammals, males are XY and females XX. Like the mammalian XY pair, the avian ZW pair is believed to have evolved from autosomes, with most change occurring in the chromosomes found in only one sex--the W and Y chromosomes. By contrast, the sex chromosomes found in both sexes--the Z and X chromosomes--are assumed to have diverged little from their autosomal progenitors. Here we report findings that challenge this assumption for both the chicken Z chromosome and the human X chromosome. The chicken Z chromosome, which we sequenced essentially to completion, is less gene-dense than chicken autosomes but contains a massive tandem array containing hundreds of duplicated genes expressed in testes. A comprehensive comparison of the chicken Z chromosome with the finished sequence of the human X chromosome demonstrates that each evolved independently from different portions of the ancestral genome. Despite this independence, the chicken Z and human X chromosomes share features that distinguish them from autosomes: the acquisition and amplification of testis-expressed genes, and a low gene density resulting from an expansion of intergenic regions. These features were not present on the autosomes from which the Z and X chromosomes originated but were instead acquired during the evolution of Z and X as sex chromosomes. We conclude that the avian Z and mammalian X chromosomes followed convergent evolutionary trajectories, despite their evolving with opposite (female versus male) systems of heterogamety. More broadly, in birds and mammals, sex chromosome evolution involved not only gene loss in sex-specific chromosomes, but also marked expansion and gene acquisition in sex chromosomes common to males and females.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2943333/" 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/PMC2943333/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bellott, Daniel W -- Skaletsky, Helen -- Pyntikova, Tatyana -- Mardis, Elaine R -- Graves, Tina -- Kremitzki, Colin -- Brown, Laura G -- Rozen, Steve -- Warren, Wesley C -- Wilson, Richard K -- Page, David C -- R01 HG000257/HG/NHGRI NIH HHS/ -- R01 HG000257-21/HG/NHGRI NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2010 Jul 29;466(7306):612-6. doi: 10.1038/nature09172. Epub 2010 Jul 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Massachusetts Institute of Technology, 9 Cambridge Center, Cambridge, Massachusetts 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20622855" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chickens/*genetics ; Chromosomes, Human, X/*genetics ; *Evolution, Molecular ; Female ; Gene Deletion ; Genes/*genetics ; Genome/genetics ; Humans ; Male ; Multigene Family/genetics ; Sex Characteristics ; Sex Chromosomes/*genetics ; Testis/metabolism
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  • 40
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    Nature Publishing Group (NPG)
    Publication Date: 2010-07-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Trivedi, Bijal -- England -- Nature. 2010 Jul 15;466(7304):S4. doi: 10.1038/nature09235.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20631703" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/genetics/*immunology/prevention & ; control/virology ; Alleles ; *Disease Progression ; Female ; Genetic Predisposition to Disease/genetics ; Genome-Wide Association Study ; HIV/genetics/immunology ; HIV Infections/genetics/*immunology/prevention & control/virology ; *HIV Long-Term Survivors/statistics & numerical data ; HLA-B Antigens/genetics/immunology ; Humans ; Immunity, Innate/genetics/*immunology ; Major Histocompatibility Complex/genetics ; Male ; Polymorphism, Single Nucleotide/genetics ; RNA, Viral/blood
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  • 41
    Publication Date: 2010-11-12
    Description: The central amygdala (CEA), a nucleus predominantly composed of GABAergic inhibitory neurons, is essential for fear conditioning. How the acquisition and expression of conditioned fear are encoded within CEA inhibitory circuits is not understood. Using in vivo electrophysiological, optogenetic and pharmacological approaches in mice, we show that neuronal activity in the lateral subdivision of the central amygdala (CEl) is required for fear acquisition, whereas conditioned fear responses are driven by output neurons in the medial subdivision (CEm). Functional circuit analysis revealed that inhibitory CEA microcircuits are highly organized and that cell-type-specific plasticity of phasic and tonic activity in the CEl to CEm pathway may gate fear expression and regulate fear generalization. Our results define the functional architecture of CEA microcircuits and their role in the acquisition and regulation of conditioned fear behaviour.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ciocchi, Stephane -- Herry, Cyril -- Grenier, Francois -- Wolff, Steffen B E -- Letzkus, Johannes J -- Vlachos, Ioannis -- Ehrlich, Ingrid -- Sprengel, Rolf -- Deisseroth, Karl -- Stadler, Michael B -- Muller, Christian -- Luthi, Andreas -- England -- Nature. 2010 Nov 11;468(7321):277-82. doi: 10.1038/nature09559.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Friedrich Miescher Institute for Biomedical Research, Maulbeerstrasse 66, 4058 Basel, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21068837" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Amygdala/anatomy & histology/cytology/*physiology ; Animals ; Conditioning, Classical/*physiology ; Fear/*physiology ; Freezing Reaction, Cataleptic ; Male ; Mice ; Mice, Inbred C57BL ; Neural Inhibition/*physiology ; Neural Pathways/cytology/*physiology ; Neuronal Plasticity/physiology ; Neurons/physiology ; gamma-Aminobutyric Acid/metabolism
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  • 42
    Publication Date: 2010-11-05
    Description: Stroke is a leading cause of disability, but no pharmacological therapy is currently available for promoting recovery. The brain region adjacent to stroke damage-the peri-infarct zone-is critical for rehabilitation, as it shows heightened neuroplasticity, allowing sensorimotor functions to re-map from damaged areas. Thus, understanding the neuronal properties constraining this plasticity is important for the development of new treatments. Here we show that after a stroke in mice, tonic neuronal inhibition is increased in the peri-infarct zone. This increased tonic inhibition is mediated by extrasynaptic GABA(A) receptors and is caused by an impairment in GABA (gamma-aminobutyric acid) transporter (GAT-3/GAT-4) function. To counteract the heightened inhibition, we administered in vivo a benzodiazepine inverse agonist specific for alpha5-subunit-containing extrasynaptic GABA(A) receptors at a delay after stroke. This treatment produced an early and sustained recovery of motor function. Genetically lowering the number of alpha5- or delta-subunit-containing GABA(A) receptors responsible for tonic inhibition also proved beneficial for recovery after stroke, consistent with the therapeutic potential of diminishing extrasynaptic GABA(A) receptor function. Together, our results identify new pharmacological targets and provide the rationale for a novel strategy to promote recovery after stroke and possibly other brain injuries.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3058798/" 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/PMC3058798/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Clarkson, Andrew N -- Huang, Ben S -- Macisaac, Sarah E -- Mody, Istvan -- Carmichael, S Thomas -- NS30549/NS/NINDS NIH HHS/ -- R01 NS030549/NS/NINDS NIH HHS/ -- R01 NS030549-18/NS/NINDS NIH HHS/ -- England -- Nature. 2010 Nov 11;468(7321):305-9. doi: 10.1038/nature09511. Epub 2010 Nov 3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, The David Geffen School of Medicine at UCLA, 635 Charles Young Drive South, Los Angeles, California 90095, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21048709" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Benzodiazepines/pharmacology ; Cerebral Infarction/metabolism/pathology/physiopathology ; Disease Models, Animal ; Drug Inverse Agonism ; GABA Antagonists/pharmacology ; GABA Plasma Membrane Transport Proteins/metabolism ; Imidazoles/pharmacology ; Male ; Membrane Potentials/drug effects ; Mice ; Mice, Inbred C57BL ; Motor Cortex/metabolism/pathology/*physiology/*physiopathology ; Neuronal Plasticity/physiology ; Receptors, GABA/deficiency/genetics/metabolism ; Recovery of Function/*physiology ; Stroke/drug therapy/*metabolism/pathology ; Synapses/metabolism ; Time Factors ; gamma-Aminobutyric Acid/*metabolism
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  • 43
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    Nature Publishing Group (NPG)
    Publication Date: 2010-03-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Serrano, Manuel -- England -- Nature. 2010 Mar 18;464(7287):363-4. doi: 10.1038/464363a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20237557" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apoptosis ; *Cell Aging/drug effects ; Cyclin-Dependent Kinase 2/deficiency/*metabolism ; Cyclin-Dependent Kinase Inhibitor p21/metabolism ; Cyclin-Dependent Kinase Inhibitor p27/metabolism ; Leukemia/metabolism/pathology ; Male ; Mice ; Neoplasms/drug therapy/metabolism/*pathology/prevention & control ; PTEN Phosphohydrolase/deficiency/genetics/metabolism ; Prostatic Neoplasms/metabolism/pathology ; S-Phase Kinase-Associated Proteins/antagonists & inhibitors/genetics/*metabolism
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  • 44
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    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2010-06-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉England -- Nature. 2010 Jun 10;465(7299):665. doi: 10.1038/465665a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20535156" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bias (Epidemiology) ; Biomedical Research/*methods/*trends ; Clinical Trials as Topic/*methods/*trends ; Evidence-Based Medicine/methods/trends ; Female ; Humans ; Male ; Precision Medicine/methods/trends ; Pregnancy ; *Sex Characteristics ; Sex Factors
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  • 45
    Publication Date: 2010-03-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Berglund, Anders -- England -- Nature. 2010 Mar 18;464(7287):364-5. doi: 10.1038/464364a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20237558" target="_blank"〉PubMed〈/a〉
    Keywords: Abortion, Eugenic/veterinary ; Animals ; *Biological Evolution ; Body Size/physiology ; *Conflict (Psychology) ; Embryo, Nonmammalian/embryology/physiology ; Embryonic Development/*physiology ; Female ; Male ; Mating Preference, Animal/*physiology ; Paternal Behavior ; Selection, Genetic ; *Sex ; Sex Characteristics ; Smegmamorpha/anatomy & histology/embryology/*physiology ; Survival Rate
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  • 46
    Publication Date: 2010-05-21
    Description: Commensal bacteria are known to inhibit pathogen colonization; however, complex host-microbe and microbe-microbe interactions have made it difficult to gain a detailed understanding of the mechanisms involved in the inhibition of colonization. Here we show that the serine protease Esp secreted by a subset of Staphylococcus epidermidis, a commensal bacterium, inhibits biofilm formation and nasal colonization by Staphylococcus aureus, a human pathogen. Epidemiological studies have demonstrated that the presence of Esp-secreting S. epidermidis in the nasal cavities of human volunteers correlates with the absence of S. aureus. Purified Esp inhibits biofilm formation and destroys pre-existing S. aureus biofilms. Furthermore, Esp enhances the susceptibility of S. aureus in biofilms to immune system components. In vivo studies have shown that Esp-secreting S. epidermidis eliminates S. aureus nasal colonization. These findings indicate that Esp hinders S. aureus colonization in vivo through a novel mechanism of bacterial interference, which could lead to the development of novel therapeutics to prevent S. aureus colonization and infection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Iwase, Tadayuki -- Uehara, Yoshio -- Shinji, Hitomi -- Tajima, Akiko -- Seo, Hiromi -- Takada, Koji -- Agata, Toshihiko -- Mizunoe, Yoshimitsu -- England -- Nature. 2010 May 20;465(7296):346-9. doi: 10.1038/nature09074.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Bacteriology, The Jikei University School of Medicine, Tokyo, 105-8461 Japan. iwase.tadayuki@jikei.ac.jp〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20485435" target="_blank"〉PubMed〈/a〉
    Keywords: Bacterial Proteins/chemistry/isolation & purification/*metabolism/pharmacology ; Biofilms/*growth & development ; Female ; Humans ; Male ; Nose/*microbiology ; Odds Ratio ; Serine Proteases/chemistry/deficiency/isolation & purification/*metabolism ; Staphylococcal Infections/microbiology/prevention & control/therapy ; Staphylococcus aureus/*growth & development/immunology ; Staphylococcus epidermidis/*enzymology/genetics/*physiology ; Superinfection/immunology/microbiology/prevention & control/therapy ; Young Adult ; beta-Defensins/immunology/pharmacology
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  • 47
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    Nature Publishing Group (NPG)
    Publication Date: 2010-11-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cyranoski, David -- England -- Nature. 2010 Nov 25;468(7323):485. doi: 10.1038/468485a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21107396" target="_blank"〉PubMed〈/a〉
    Keywords: Female ; Humans ; Male ; *Medical Tourism/economics/ethics/legislation & jurisprudence ; Republic of Korea ; Stem Cell Transplantation/*ethics/*legislation & jurisprudence/mortality ; *Travel
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  • 48
    Publication Date: 2010-08-13
    Description: The use of homologous recombination to modify genes in embryonic stem (ES) cells provides a powerful means to elucidate gene function and create disease models. Application of this technology to engineer genes in rats has not previously been possible because of the absence of germline-competent ES cells in this species. We have recently established authentic rat ES cells. Here we report the generation of gene knockout rats using the ES-cell-based gene targeting technology. We designed a targeting vector to disrupt the tumour suppressor gene p53 (also known as Tp53) in rat ES cells by means of homologous recombination. p53 gene-targeted rat ES cells can be routinely generated. Furthermore, the p53 gene-targeted mutation in the rat ES-cell genome can transmit through the germ line via ES-cell rat chimaeras to create p53 gene knockout rats. The rat is the most widely used animal model in biological research. The establishment of gene targeting technology in rat ES cells, in combination with advances in genomics and the vast amount of research data on physiology and pharmacology in this species, now provide a powerful new platform for the study of human disease.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2937076/" 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/PMC2937076/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tong, Chang -- Li, Ping -- Wu, Nancy L -- Yan, Youzhen -- Ying, Qi-Long -- 1R01 RR025881/RR/NCRR NIH HHS/ -- R01 OD010926/OD/NIH HHS/ -- R01 RR025881/RR/NCRR NIH HHS/ -- R01 RR025881-01A2/RR/NCRR NIH HHS/ -- England -- Nature. 2010 Sep 9;467(7312):211-3. doi: 10.1038/nature09368. Epub 2010 Aug 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research at USC, Department of Cell and Neurobiology, Keck School of Medicine, University of Southern California, Los Angeles, California 90033, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20703227" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cell Culture Techniques ; Embryo, Mammalian/cytology ; Embryonic Stem Cells/*cytology ; Female ; Gene Knockout Techniques/*methods ; *Genes, p53 ; Germ-Line Mutation ; Male ; Mice ; Molecular Sequence Data ; Rats/*genetics ; Rats, Inbred F344 ; Rats, Sprague-Dawley ; Recombination, Genetic
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  • 49
    Publication Date: 2010-03-12
    Description: Systematic genetic approaches have provided deep insight into the molecular and cellular mechanisms that operate in simple unicellular organisms. For multicellular organisms, however, the pleiotropy of gene function has largely restricted such approaches to the study of early embryogenesis. With the availability of genome-wide transgenic RNA interference (RNAi) libraries in Drosophila, it is now possible to perform a systematic genetic dissection of any cell or tissue type at any stage of the lifespan. Here we apply these methods to define the genetic basis for formation and function of the Drosophila muscle. We identify a role in muscle for 2,785 genes, many of which we assign to specific functions in the organization of muscles, myofibrils or sarcomeres. Many of these genes are phylogenetically conserved, including genes implicated in mammalian sarcomere organization and human muscle diseases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schnorrer, Frank -- Schonbauer, Cornelia -- Langer, Christoph C H -- Dietzl, Georg -- Novatchkova, Maria -- Schernhuber, Katharina -- Fellner, Michaela -- Azaryan, Anna -- Radolf, Martin -- Stark, Alexander -- Keleman, Krystyna -- Dickson, Barry J -- England -- Nature. 2010 Mar 11;464(7286):287-91. doi: 10.1038/nature08799.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max-Planck-Institute of Biochemistry, Am Klopferspitz 18, 82152 Martinsried, Germany. schnorrer@biochem.mpg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20220848" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Computational Biology ; Drosophila melanogaster/*embryology ; Genes, Insect/*genetics ; Genome-Wide Association Study ; Genomic Library ; Larva ; Male ; Muscles/embryology ; RNA Interference
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  • 50
    Publication Date: 2010-10-22
    Description: Two forms of X-chromosome inactivation (XCI) ensure the selective silencing of female sex chromosomes during mouse embryogenesis. Imprinted XCI begins with the detection of Xist RNA expression on the paternal X chromosome (Xp) at about the four-cell stage of embryonic development. In the embryonic tissues of the inner cell mass, a random form of XCI occurs in blastocysts that inactivates either Xp or the maternal X chromosome (Xm). Both forms of XCI require the non-coding Xist RNA that coats the inactive X chromosome from which it is expressed. Xist has crucial functions in the silencing of X-linked genes, including Rnf12 (refs 3, 4) encoding the ubiquitin ligase RLIM (RING finger LIM-domain-interacting protein). Here we show, by targeting a conditional knockout of Rnf12 to oocytes where RLIM accumulates to high levels, that the maternal transmission of the mutant X chromosome (Deltam) leads to lethality in female embryos as a result of defective imprinted XCI. We provide evidence that in Deltam female embryos the initial formation of Xist clouds and Xp silencing are inhibited. In contrast, embryonic stem cells lacking RLIM are able to form Xist clouds and silence at least some X-linked genes during random XCI. These results assign crucial functions to the maternal deposit of Rnf12/RLIM for the initiation of imprinted XCI.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2967734/" 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/PMC2967734/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shin, Jongdae -- Bossenz, Michael -- Chung, Young -- Ma, Hong -- Byron, Meg -- Taniguchi-Ishigaki, Naoko -- Zhu, Xiaochun -- Jiao, Baowei -- Hall, Lisa L -- Green, Michael R -- Jones, Stephen N -- Hermans-Borgmeyer, Irm -- Lawrence, Jeanne B -- Bach, Ingolf -- 5 P30 DK32520/DK/NIDDK NIH HHS/ -- DK32520/DK/NIDDK NIH HHS/ -- GM053234/GM/NIGMS NIH HHS/ -- R01 CA131158/CA/NCI NIH HHS/ -- R01 CA131158-04/CA/NCI NIH HHS/ -- R01 GM033977/GM/NIGMS NIH HHS/ -- R01 GM053234/GM/NIGMS NIH HHS/ -- R01CA131158/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2010 Oct 21;467(7318):977-81. doi: 10.1038/nature09457.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Program in Gene Function and Expression, University of Massachusetts Medical School (UMMS), Worcester, Massachusetts 01605, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20962847" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Congenic ; Blastocyst/metabolism ; Cell Line ; Chromosomes, Mammalian/*genetics ; Embryo Loss/genetics ; Fathers ; Female ; Gene Silencing ; *Genomic Imprinting ; Male ; Mice ; Mice, Transgenic ; *Mothers ; RNA, Long Noncoding ; RNA, Untranslated/genetics ; Repressor Proteins/deficiency/genetics/*metabolism ; Ubiquitin-Protein Ligases ; X Chromosome/*genetics ; X Chromosome Inactivation/*genetics
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  • 51
    Publication Date: 2010-02-16
    Description: A major goal of regenerative medicine is to instruct formation of multipotent, tissue-specific stem cells from induced pluripotent stem cells (iPSCs) for cell replacement therapies. Generation of haematopoietic stem cells (HSCs) from iPSCs or embryonic stem cells (ESCs) is not currently possible, however, necessitating a better understanding of how HSCs normally arise during embryonic development. We previously showed that haematopoiesis occurs through four distinct waves during zebrafish development, with HSCs arising in the final wave in close association with the dorsal aorta. Recent reports have suggested that murine HSCs derive from haemogenic endothelial cells (ECs) lining the aortic floor. Additional in vitro studies have similarly indicated that the haematopoietic progeny of ESCs arise through intermediates with endothelial potential. Here we have used the unique strengths of the zebrafish embryo to image directly the generation of HSCs from the ventral wall of the dorsal aorta. Using combinations of fluorescent reporter transgenes, confocal time-lapse microscopy and flow cytometry, we have identified and isolated the stepwise intermediates as aortic haemogenic endothelium transitions to nascent HSCs. Finally, using a permanent lineage tracing strategy, we demonstrate that the HSCs generated from haemogenic endothelium are the lineal founders of the adult haematopoietic system.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2858358/" 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/PMC2858358/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bertrand, Julien Y -- Chi, Neil C -- Santoso, Buyung -- Teng, Shutian -- Stainier, Didier Y R -- Traver, David -- DK074482/DK/NIDDK NIH HHS/ -- F32DK752433/DK/NIDDK NIH HHS/ -- HL074891/HL/NHLBI NIH HHS/ -- HL54737/HL/NHLBI NIH HHS/ -- R01 DK074482/DK/NIDDK NIH HHS/ -- R01 DK074482-04/DK/NIDDK NIH HHS/ -- England -- Nature. 2010 Mar 4;464(7285):108-11. doi: 10.1038/nature08738. Epub 2010 Feb 14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, California 92093-0380, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20154733" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Genetically Modified ; Aorta/*cytology/*embryology ; *Cell Differentiation ; *Cell Lineage ; Cell Separation ; Endothelial Cells/cytology ; Endothelium, Vascular/*cytology/embryology ; Female ; Flow Cytometry ; Genes, Reporter/genetics ; Hematopoietic Stem Cells/*cytology ; Male ; Microscopy, Confocal ; Microscopy, Fluorescence ; Transgenes/genetics ; Zebrafish/blood/*embryology
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  • 52
    facet.materialart.
    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2010-02-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dalton, Rex -- England -- Nature. 2010 Feb 11;463(7282):724-5. doi: 10.1038/463724a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20148008" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arctic Regions ; Cryopreservation ; DNA/genetics/isolation & purification ; DNA, Mitochondrial/analysis/genetics ; Denmark ; Emigration and Immigration/*history ; Feces ; Fossils ; Genetics, Medical/history ; Genome, Human/*genetics ; Greenland/ethnology ; History, 20th Century ; History, 21st Century ; History, Ancient ; Humans ; Inuits/*ethnology/*history ; Male ; Paleontology/*history ; Phylogeny ; Reproducibility of Results ; Sequence Analysis, DNA ; Siberia/ethnology
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  • 53
    Publication Date: 2010-10-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Skinner, Michael K -- England -- Nature. 2010 Oct 21;467(7318):922-3. doi: 10.1038/467922a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20962833" target="_blank"〉PubMed〈/a〉
    Keywords: Adiposity/drug effects ; Animals ; Body Weight/drug effects ; DNA Methylation ; Diabetes Mellitus, Type 2/etiology/genetics/pathology/physiopathology ; Diet/*adverse effects ; Dietary Fats/*administration & dosage/*adverse effects ; Epigenesis, Genetic/drug effects ; *Fathers ; Female ; Gene Expression Profiling ; Glucose Intolerance/etiology/pathology/physiopathology ; Insulin/secretion ; Insulin-Secreting Cells/metabolism/*pathology/secretion ; Male ; Obesity/etiology/genetics/pathology/physiopathology ; Paternal Exposure/*adverse effects ; Rats ; Spermatozoa/drug effects/metabolism
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  • 54
    Publication Date: 2010-08-21
    Description: Theory predicts that the evolution of cooperative behaviour is favoured by low levels of promiscuity leading to high within-group relatedness. However, in vertebrates, cooperation often occurs between non-relatives and promiscuity rates are among the highest recorded. Here we resolve this apparent inconsistency with a phylogenetic analysis of 267 bird species, demonstrating that cooperative breeding is associated with low promiscuity; that in cooperative species, helping is more common when promiscuity is low; and that intermediate levels of promiscuity favour kin discrimination. Overall, these results suggest that promiscuity is a unifying feature across taxa in explaining transitions to and from cooperative societies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cornwallis, Charlie K -- West, Stuart A -- Davis, Katie E -- Griffin, Ashleigh S -- England -- Nature. 2010 Aug 19;466(7309):969-72. doi: 10.1038/nature09335.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Edward Grey Institute, Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20725039" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Birds/classification/genetics/*physiology ; *Cooperative Behavior ; Fathers ; Female ; Male ; Models, Biological ; Mothers ; Phylogeny ; Reproduction/genetics/physiology ; Sexual Behavior, Animal/*physiology ; *Siblings
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  • 55
    Publication Date: 2008-03-28
    Description: Although information storage in the central nervous system is thought to be primarily mediated by various forms of synaptic plasticity, other mechanisms, such as modifications in membrane excitability, are available. Local dendritic spikes are nonlinear voltage events that are initiated within dendritic branches by spatially clustered and temporally synchronous synaptic input. That local spikes selectively respond only to appropriately correlated input allows them to function as input feature detectors and potentially as powerful information storage mechanisms. However, it is currently unknown whether any effective form of local dendritic spike plasticity exists. Here we show that the coupling between local dendritic spikes and the soma of rat hippocampal CA1 pyramidal neurons can be modified in a branch-specific manner through an N-methyl-d-aspartate receptor (NMDAR)-dependent regulation of dendritic Kv4.2 potassium channels. These data suggest that compartmentalized changes in branch excitability could store multiple complex features of synaptic input, such as their spatio-temporal correlation. We propose that this 'branch strength potentiation' represents a previously unknown form of information storage that is distinct from that produced by changes in synaptic efficacy both at the mechanistic level and in the type of information stored.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Losonczy, Attila -- Makara, Judit K -- Magee, Jeffrey C -- England -- Nature. 2008 Mar 27;452(7186):436-41. doi: 10.1038/nature06725.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Janelia Farm Research Campus, 19700 Helix Dr Ashburn, Virginia 20147, USA. losonczya@janelia.hhmi.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18368112" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials/physiology ; Animals ; Cell Shape ; Dendrites/*physiology ; Ion Channel Gating ; Male ; Mice ; Models, Neurological ; Neuronal Plasticity/*physiology ; Pyramidal Cells/*cytology/*metabolism ; Rats ; Rats, Sprague-Dawley ; Receptors, N-Methyl-D-Aspartate/metabolism ; Shal Potassium Channels/deficiency/genetics/metabolism
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  • 56
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    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2008-04-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wadman, Meredith -- England -- Nature. 2008 Apr 17;452(7189):788. doi: 10.1038/452788b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18431822" target="_blank"〉PubMed〈/a〉
    Keywords: Genetic Counseling/trends ; *Genome, Human ; Genomics/economics/*trends ; History, 21st Century ; Humans ; Individuality ; Male ; Reference Standards ; Sequence Analysis, DNA/economics/*trends ; Time Factors
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  • 57
    Publication Date: 2008-03-14
    Description: Many tumour cells have elevated rates of glucose uptake but reduced rates of oxidative phosphorylation. This persistence of high lactate production by tumours in the presence of oxygen, known as aerobic glycolysis, was first noted by Otto Warburg more than 75 yr ago. How tumour cells establish this altered metabolic phenotype and whether it is essential for tumorigenesis is as yet unknown. Here we show that a single switch in a splice isoform of the glycolytic enzyme pyruvate kinase is necessary for the shift in cellular metabolism to aerobic glycolysis and that this promotes tumorigenesis. Tumour cells have been shown to express exclusively the embryonic M2 isoform of pyruvate kinase. Here we use short hairpin RNA to knockdown pyruvate kinase M2 expression in human cancer cell lines and replace it with pyruvate kinase M1. Switching pyruvate kinase expression to the M1 (adult) isoform leads to reversal of the Warburg effect, as judged by reduced lactate production and increased oxygen consumption, and this correlates with a reduced ability to form tumours in nude mouse xenografts. These results demonstrate that M2 expression is necessary for aerobic glycolysis and that this metabolic phenotype provides a selective growth advantage for tumour cells in vivo.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Christofk, Heather R -- Vander Heiden, Matthew G -- Harris, Marian H -- Ramanathan, Arvind -- Gerszten, Robert E -- Wei, Ru -- Fleming, Mark D -- Schreiber, Stuart L -- Cantley, Lewis C -- R01 GM056203/GM/NIGMS NIH HHS/ -- T32 CA009172/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2008 Mar 13;452(7184):230-3. doi: 10.1038/nature06734.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Systems Biology, Harvard Medical School, Boston, Massachusetts 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18337823" target="_blank"〉PubMed〈/a〉
    Keywords: Alternative Splicing/*genetics ; Animals ; Cell Line, Tumor ; Cell Proliferation ; Fructosediphosphates/metabolism ; Gene Expression Regulation, Neoplastic ; Glycolysis ; Humans ; Lactic Acid/metabolism ; Lung Neoplasms/genetics/metabolism/pathology ; Male ; Mice ; Mice, Nude ; Neoplasm Transplantation ; Neoplasms/enzymology/genetics/*metabolism/*pathology ; Oxidative Phosphorylation ; Oxygen Consumption ; Pyruvate Kinase/*genetics/*metabolism ; Pyruvic Acid/metabolism
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  • 58
    Publication Date: 2008-04-18
    Description: We often face alternatives that we are free to choose between. Planning movements to select an alternative involves several areas in frontal and parietal cortex that are anatomically connected into long-range circuits. These areas must coordinate their activity to select a common movement goal, but how neural circuits make decisions remains poorly understood. Here we simultaneously record from the dorsal premotor area (PMd) in frontal cortex and the parietal reach region (PRR) in parietal cortex to investigate neural circuit mechanisms for decision making. We find that correlations in spike and local field potential (LFP) activity between these areas are greater when monkeys are freely making choices than when they are following instructions. We propose that a decision circuit featuring a sub-population of cells in frontal and parietal cortex may exchange information to coordinate activity between these areas. Cells participating in this decision circuit may influence movement choices by providing a common bias to the selection of movement goals.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2728060/" 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/PMC2728060/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pesaran, Bijan -- Nelson, Matthew J -- Andersen, Richard A -- R01 EY007492/EY/NEI NIH HHS/ -- R01 EY007492-19/EY/NEI NIH HHS/ -- England -- Nature. 2008 May 15;453(7193):406-9. doi: 10.1038/nature06849. Epub 2008 Apr 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Neural Science, New York University, New York, New York 10003, USA. bijan@nyu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18418380" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials/physiology ; Animals ; Choice Behavior/*physiology ; Fixation, Ocular/physiology ; Frontal Lobe/*physiology ; Macaca mulatta/*physiology ; Male ; Neural Pathways/*physiology ; Neurons/metabolism ; Parietal Lobe/*physiology ; Photic Stimulation ; Probability ; ROC Curve ; Reward ; Saccades/physiology
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  • 59
    Publication Date: 2008-05-13
    Description: Sound communication plays a vital role in frog reproduction, in which vocal advertisement is generally the domain of males. Females are typically silent, but in a few anuran species they can produce a feeble reciprocal call or rapping sounds during courtship. Males of concave-eared torrent frogs (Odorrana tormota) have demonstrated ultrasonic communication capacity. Although females of O. tormota have an unusually well-developed vocal production system, it is unclear whether or not they produce calls or are only passive partners in a communication system dominated by males. Here we show that before ovulation, gravid females of O. tormota emit calls that are distinct from males' advertisement calls, having higher fundamental frequencies and harmonics and shorter call duration. In the field and in a quiet, darkened indoor arena, these female calls evoke vocalizations and extraordinarily precise positive phonotaxis (a localization error of 〈1 degrees ), rivalling that of vertebrates with the highest localization acuity (barn owls, dolphins, elephants and humans). The localization accuracy of O. tormota is remarkable in light of their small head size (interaural distance of 〈1 cm), and suggests an additional selective advantage of high-frequency hearing beyond the ability to avoid masking by low-frequency background noise.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shen, Jun-Xian -- Feng, Albert S -- Xu, Zhi-Min -- Yu, Zu-Lin -- Arch, Victoria S -- Yu, Xin-Jian -- Narins, Peter M -- England -- Nature. 2008 Jun 12;453(7197):914-6. doi: 10.1038/nature06719. Epub 2008 May 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China. shenjx@sun5.ibp.ac.cn〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18469804" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; China ; *Courtship ; Female ; Humans ; Male ; Motor Activity/*physiology ; Ranidae/*physiology ; *Sex Characteristics ; Sound ; *Ultrasonics ; Vocalization, Animal/*physiology
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  • 60
    Publication Date: 2008-03-28
    Description: As perceived by Darwin, evolutionary adaptation by the processes of mutation and selection is difficult to understand for complex features that are the product of numerous traits acting in concert, for example the eye or the apparatus of flight. Typically, mutations simultaneously affect multiple phenotypic characters. This phenomenon is known as pleiotropy. The impact of pleiotropy on evolution has for decades been the subject of formal analysis. Some authors have suggested that pleiotropy can impede evolutionary progress (a so-called 'cost of complexity'). The plausibility of various phenomena attributed to pleiotropy depends on how many traits are affected by each mutation and on our understanding of the correlation between the number of traits affected by each gene substitution and the size of mutational effects on individual traits. Here we show, by studying pleiotropy in mice with the use of quantitative trait loci (QTLs) affecting skeletal characters, that most QTLs affect a relatively small subset of traits and that a substitution at a QTL has an effect on each trait that increases with the total number of traits affected. This suggests that evolution of higher organisms does not suffer a 'cost of complexity' because most mutations affect few traits and the size of the effects does not decrease with pleiotropy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wagner, Gunter P -- Kenney-Hunt, Jane P -- Pavlicev, Mihaela -- Peck, Joel R -- Waxman, David -- Cheverud, James M -- England -- Nature. 2008 Mar 27;452(7186):470-2. doi: 10.1038/nature06756.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ecology and Evolutionary Biology, Yale University, New Haven, Connecticut 06520-8106, USA. gunter.wagner@yale.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18368117" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Body Size/*genetics ; Body Weight/genetics ; Crosses, Genetic ; Female ; Male ; Mice ; Mice, Inbred Strains ; *Models, Genetic ; Mutation/*genetics ; Phenotype ; Quantitative Trait Loci/*genetics ; Selection, Genetic ; *Skeleton
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  • 61
    Publication Date: 2008-06-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hunt, Patricia -- England -- Nature. 2008 Jun 19;453(7198):964. doi: 10.1038/453964a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18563110" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Laboratory/abnormalities ; Benzalkonium Compounds/*toxicity ; Benzhydryl Compounds ; Disinfectants/chemistry/*toxicity ; Environmental Exposure ; Female ; Fertility/*drug effects ; Fetal Death/chemically induced ; *Housing, Animal ; *Laboratories ; Male ; Mice ; Phenols ; Pregnancy ; Quaternary Ammonium Compounds/*toxicity
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  • 62
    Publication Date: 2008-10-04
    Description: HIV has advanced from high-risk groups such as intravenous drug users to some in the general population, according to comprehensive new data from the south of China. What needs to be done to halt its spread?〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lu, Lin -- Jia, Manhong -- Ma, Yanling -- Yang, Li -- Chen, Zhiwei -- Ho, David D -- Jiang, Yan -- Zhang, Linqi -- England -- Nature. 2008 Oct 2;455(7213):609-11. doi: 10.1038/455609a.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Yunnan Center for Disease Control and Prevention, Yunnan, People's Republic of China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18833270" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; China/epidemiology ; Ethnic Groups/statistics & numerical data ; Female ; HIV Infections/*epidemiology/prevention & control/transmission/virology ; HIV-1/genetics ; Humans ; Male ; Pregnancy ; Prevalence ; Prostitution/statistics & numerical data ; Sentinel Surveillance ; Sex Ratio ; Substance Abuse, Intravenous/epidemiology
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  • 63
    Publication Date: 2008-03-14
    Description: Genetic data from two or more species provide information about the process of speciation. In their analysis of DNA from humans, chimpanzees, gorillas, orangutans and macaques (HCGOM), Patterson et al. suggest that the apparently short divergence time between humans and chimpanzees on the X chromosome is explained by a massive interspecific hybridization event in the ancestry of these two species. However, Patterson et al. do not statistically test their own null model of simple speciation before concluding that speciation was complex, and--even if the null model could be rejected--they do not consider other explanations of a short divergence time on the X chromosome. These include natural selection on the X chromosome in the common ancestor of humans and chimpanzees, changes in the ratio of male-to-female mutation rates over time, and less extreme versions of divergence with gene flow (see ref. 2, for example). I therefore believe that their claim of hybridization is unwarranted.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wakeley, John -- England -- Nature. 2008 Mar 13;452(7184):E3-4; discussion E4. doi: 10.1038/nature06805.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Organismic and Evolutionary Biology, Harvard University, 16 Divinity Avenue, Cambridge, Massachusetts 02138, USA. wakeley@fas.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18337768" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromosomes, Mammalian/genetics ; Female ; *Genetic Speciation ; Humans ; Male ; *Models, Genetic ; Mutagenesis/genetics ; Pan troglodytes/*genetics ; Phylogeny ; Reproducibility of Results ; Selection, Genetic ; Sex Characteristics ; Time Factors ; X Chromosome/genetics
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  • 64
    Publication Date: 2008-02-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Phillips, Patrick C -- England -- Nature. 2008 Feb 7;451(7179):640-1. doi: 10.1038/451640a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18256655" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Caenorhabditis elegans/classification/embryology/*genetics/*physiology ; Chromosomes/genetics ; Crosses, Genetic ; Disorders of Sex Development ; Embryo Loss/genetics ; Embryo, Nonmammalian/embryology ; Female ; Genetic Markers/genetics ; Great Britain ; Hawaii ; Hybridization, Genetic ; Male ; Reproduction/genetics/physiology
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  • 65
    Publication Date: 2008-05-27
    Description: Relapse to cocaine use after prolonged abstinence is an important clinical problem. This relapse is often induced by exposure to cues associated with cocaine use. To account for the persistent propensity for relapse, it has been suggested that cue-induced cocaine craving increases over the first several weeks of abstinence and remains high for extended periods. We and others identified an analogous phenomenon in rats that was termed 'incubation of cocaine craving': time-dependent increases in cue-induced cocaine-seeking over the first months after withdrawal from self-administered cocaine. Cocaine-seeking requires the activation of glutamate projections that excite receptors for alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid (AMPA) in the nucleus accumbens. Here we show that the number of synaptic AMPA receptors in the accumbens is increased after prolonged withdrawal from cocaine self-administration by the addition of new AMPA receptors lacking glutamate receptor 2 (GluR2). Furthermore, we show that these new receptors mediate the incubation of cocaine craving. Our results indicate that GluR2-lacking AMPA receptors could be a new target for drug development for the treatment of cocaine addiction. We propose that after prolonged withdrawal from cocaine, increased numbers of synaptic AMPA receptors combined with the higher conductance of GluR2-lacking AMPA receptors causes increased reactivity of accumbens neurons to cocaine-related cues, leading to an intensification of drug craving and relapse.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2574981/" 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/PMC2574981/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Conrad, Kelly L -- Tseng, Kuei Y -- Uejima, Jamie L -- Reimers, Jeremy M -- Heng, Li-Jun -- Shaham, Yavin -- Marinelli, Michela -- Wolf, Marina E -- DA00453/DA/NIDA NIH HHS/ -- DA015835/DA/NIDA NIH HHS/ -- DA020654/DA/NIDA NIH HHS/ -- DA09621/DA/NIDA NIH HHS/ -- Z01 DA000434-08/Intramural NIH HHS/ -- England -- Nature. 2008 Jul 3;454(7200):118-21. doi: 10.1038/nature06995. Epub 2008 May 25.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroscience, Rosalind Franklin University of Medicine and Science, 3333 Green Bay Road, North Chicago, Illinois 60064, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18500330" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cocaine ; Cocaine-Related Disorders/genetics/metabolism/*physiopathology ; Cues ; Gene Expression Regulation ; Male ; Nucleus Accumbens/*metabolism/physiopathology ; Rats ; Rats, Long-Evans ; Rats, Sprague-Dawley ; Receptors, AMPA/deficiency/genetics/*metabolism ; Self Administration ; Time Factors
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  • 66
    Publication Date: 2008-10-14
    Description: Human primordial germ cells and mouse neonatal and adult germline stem cells are pluripotent and show similar properties to embryonic stem cells. Here we report the successful establishment of human adult germline stem cells derived from spermatogonial cells of adult human testis. Cellular and molecular characterization of these cells revealed many similarities to human embryonic stem cells, and the germline stem cells produced teratomas after transplantation into immunodeficient mice. The human adult germline stem cells differentiated into various types of somatic cells of all three germ layers when grown under conditions used to induce the differentiation of human embryonic stem cells. We conclude that the generation of human adult germline stem cells from testicular biopsies may provide simple and non-controversial access to individual cell-based therapy without the ethical and immunological problems associated with human embryonic stem cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Conrad, Sabine -- Renninger, Markus -- Hennenlotter, Jorg -- Wiesner, Tina -- Just, Lothar -- Bonin, Michael -- Aicher, Wilhelm -- Buhring, Hans-Jorg -- Mattheus, Ulrich -- Mack, Andreas -- Wagner, Hans-Joachim -- Minger, Stephen -- Matzkies, Matthias -- Reppel, Michael -- Hescheler, Jurgen -- Sievert, Karl-Dietrich -- Stenzl, Arnulf -- Skutella, Thomas -- England -- Nature. 2008 Nov 20;456(7220):344-9. doi: 10.1038/nature07404. Epub 2008 Oct 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Anatomy, Department of Experimental Embryology, Tubingen, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18849962" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Animals ; Biomarkers/metabolism ; Cell Culture Techniques ; Cell Differentiation ; Cell Line ; Cell Lineage ; Cells, Cultured ; Embryonic Stem Cells/cytology/metabolism ; Epigenesis, Genetic ; Gene Expression Profiling ; Humans ; Male ; Mice ; Mice, Nude ; Neoplasm Transplantation ; Pluripotent Stem Cells/*cytology/metabolism ; Spermatogonia/cytology/ultrastructure ; Teratoma/pathology ; Testis/*cytology
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  • 67
    facet.materialart.
    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2008-11-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉England -- Nature. 2008 Nov 6;456(7218):1. doi: 10.1038/456001a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18987682" target="_blank"〉PubMed〈/a〉
    Keywords: China/ethnology ; Genetic Counseling/trends ; Genetic Privacy/*legislation & jurisprudence ; *Genome, Human ; Genomics/*legislation & jurisprudence/trends ; Humans ; Individuality ; Male ; Nigeria/ethnology ; Pharmacogenetics
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  • 68
    Publication Date: 2008-08-15
    Description: Dorsal-ventral patterning in vertebrate and invertebrate embryos is mediated by a conserved system of secreted proteins that establishes a bone morphogenetic protein (BMP) gradient. Although the Drosophila embryonic Decapentaplegic (Dpp) gradient has served as a model to understand how morphogen gradients are established, no role for the extracellular matrix has been previously described. Here we show that type IV collagen extracellular matrix proteins bind Dpp and regulate its signalling in both the Drosophila embryo and ovary. We provide evidence that the interaction between Dpp and type IV collagen augments Dpp signalling in the embryo by promoting gradient formation, yet it restricts the signalling range in the ovary through sequestration of the Dpp ligand. Together, these results identify a critical function of type IV collagens in modulating Dpp in the extracellular space during Drosophila development. On the basis of our findings that human type IV collagen binds BMP4, we predict that this role of type IV collagens will be conserved.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, Xiaomeng -- Harris, Robin E -- Bayston, Laura J -- Ashe, Hilary L -- BBS/B/11672/Biotechnology and Biological Sciences Research Council/United Kingdom -- Biotechnology and Biological Sciences Research Council/United Kingdom -- England -- Nature. 2008 Sep 4;455(7209):72-7. doi: 10.1038/nature07214.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Faculty of Life Sciences, The University of Manchester, Oxford Road, Manchester M13 9PT, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18701888" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Body Patterning ; Bone Morphogenetic Proteins/genetics/*metabolism ; Cell Count ; Collagen Type IV/genetics/*metabolism ; Drosophila Proteins/genetics/*metabolism ; Drosophila melanogaster/embryology/genetics/*metabolism ; Female ; Male ; Ovary/cytology/metabolism ; Protein Binding ; *Signal Transduction ; Transforming Growth Factor beta/genetics/metabolism
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  • 69
    Publication Date: 2008-05-13
    Description: The existence of a small population of 'cancer-initiating cells' responsible for tumour maintenance has been firmly demonstrated in leukaemia. This concept is currently being tested in solid tumours. Leukaemia-initiating cells, particularly those that are in a quiescent state, are thought to be resistant to chemotherapy and targeted therapies, resulting in disease relapse. Chronic myeloid leukaemia is a paradigmatic haematopoietic stem cell disease in which the leukaemia-initiating-cell pool is not eradicated by current therapy, leading to disease relapse on drug discontinuation. Here we define the critical role of the promyelocytic leukaemia protein (PML) tumour suppressor in haematopoietic stem cell maintenance, and present a new therapeutic approach for targeting quiescent leukaemia-initiating cells and possibly cancer-initiating cells by pharmacological inhibition of PML.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2712082/" 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/PMC2712082/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ito, Keisuke -- Bernardi, Rosa -- Morotti, Alessandro -- Matsuoka, Sahoko -- Saglio, Giuseppe -- Ikeda, Yasuo -- Rosenblatt, Jacalyn -- Avigan, David E -- Teruya-Feldstein, Julie -- Pandolfi, Pier Paolo -- K99 CA139009/CA/NCI NIH HHS/ -- R00 CA139009/CA/NCI NIH HHS/ -- R37 CA071692/CA/NCI NIH HHS/ -- R37 CA071692-12/CA/NCI NIH HHS/ -- England -- Nature. 2008 Jun 19;453(7198):1072-8. doi: 10.1038/nature07016. Epub 2008 May 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cancer Genetics Program, Beth Israel Deaconess Cancer Center, Department of Medicine, Harvard Medical School, New Research Building, 330 Brookline Avenue, Boston, Massachusetts 02215, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18469801" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Animals ; Arsenicals/pharmacology/therapeutic use ; Cell Line ; Coculture Techniques ; Female ; Gene Expression Regulation, Neoplastic ; Hematopoietic Stem Cells/pathology ; Humans ; Leukemia, Myelogenous, Chronic, BCR-ABL Positive/metabolism/*pathology ; Male ; Mice ; Mice, Inbred C57BL ; Neoplastic Stem Cells/metabolism/*pathology ; Nuclear Proteins/antagonists & inhibitors/deficiency/genetics/*metabolism ; Oxides/pharmacology/therapeutic use ; Recurrence ; Regeneration ; Transcription Factors/antagonists & inhibitors/deficiency/genetics/*metabolism ; Tumor Suppressor Proteins/antagonists & ; inhibitors/deficiency/genetics/*metabolism
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  • 70
    Publication Date: 2008-11-14
    Description: Our decisions are guided by information learnt from our environment. This information may come via personal experiences of reward, but also from the behaviour of social partners. Social learning is widely held to be distinct from other forms of learning in its mechanism and neural implementation; it is often assumed to compete with simpler mechanisms, such as reward-based associative learning, to drive behaviour. Recently, neural signals have been observed during social exchange reminiscent of signals seen in studies of associative learning. Here we demonstrate that social information may be acquired using the same associative processes assumed to underlie reward-based learning. We find that key computational variables for learning in the social and reward domains are processed in a similar fashion, but in parallel neural processing streams. Two neighbouring divisions of the anterior cingulate cortex were central to learning about social and reward-based information, and for determining the extent to which each source of information guides behaviour. When making a decision, however, the information learnt using these parallel streams was combined within ventromedial prefrontal cortex. These findings suggest that human social valuation can be realized by means of the same associative processes previously established for learning other, simpler, features of the environment.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2605577/" 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/PMC2605577/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Behrens, Timothy E J -- Hunt, Laurence T -- Woolrich, Mark W -- Rushworth, Matthew F S -- G0501316/Medical Research Council/United Kingdom -- G0501316(75487)/Medical Research Council/United Kingdom -- G0600994/Medical Research Council/United Kingdom -- Medical Research Council/United Kingdom -- Wellcome Trust/United Kingdom -- England -- Nature. 2008 Nov 13;456(7219):245-9. doi: 10.1038/nature07538.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉FMRIB Centre, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DU, UK. behrens@fmrib.ox.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19005555" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Female ; Humans ; Learning/*physiology ; Male ; Middle Aged ; Models, Statistical ; Prefrontal Cortex/physiology ; Reward ; *Social Behavior
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  • 71
    Publication Date: 2008-10-03
    Description: The integrity of the cornea, the most anterior part of the eye, is indispensable for vision. Forty-five million individuals worldwide are bilaterally blind and another 135 million have severely impaired vision in both eyes because of loss of corneal transparency; treatments range from local medications to corneal transplants, and more recently to stem cell therapy. The corneal epithelium is a squamous epithelium that is constantly renewing, with a vertical turnover of 7 to 14 days in many mammals. Identification of slow cycling cells (label-retaining cells) in the limbus of the mouse has led to the notion that the limbus is the niche for the stem cells responsible for the long-term renewal of the cornea; hence, the corneal epithelium is supposedly renewed by cells generated at and migrating from the limbus, in marked opposition to other squamous epithelia in which each resident stem cell has in charge a limited area of epithelium. Here we show that the corneal epithelium of the mouse can be serially transplanted, is self-maintained and contains oligopotent stem cells with the capacity to generate goblet cells if provided with a conjunctival environment. Furthermore, the entire ocular surface of the pig, including the cornea, contains oligopotent stem cells (holoclones) with the capacity to generate individual colonies of corneal and conjunctival cells. Therefore, the limbus is not the only niche for corneal stem cells and corneal renewal is not different from other squamous epithelia. We propose a model that unifies our observations with the literature and explains why the limbal region is enriched in stem cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Majo, Francois -- Rochat, Ariane -- Nicolas, Michael -- Jaoude, Georges Abou -- Barrandon, Yann -- England -- Nature. 2008 Nov 13;456(7219):250-4. doi: 10.1038/nature07406. Epub 2008 Oct 1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Stem Cell Dynamics, Ecole Polytechnique Federale de Lausanne (EPFL), 1015 Lausanne CH, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18830243" target="_blank"〉PubMed〈/a〉
    Keywords: Adult Stem Cells/*cytology ; Animals ; Cattle ; Cells, Cultured ; Child, Preschool ; Clone Cells ; Corneal Transplantation ; Epithelium, Corneal/*cytology/metabolism ; Female ; Gene Expression Regulation ; Humans ; Infant ; Keratinocytes/cytology/metabolism ; Male ; Mice ; Mice, SCID ; Models, Biological ; Multipotent Stem Cells/*cytology ; Proteins/metabolism ; Rats ; Swine
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  • 72
    Publication Date: 2008-01-22
    Description: Understanding the mechanisms that determine an individual's sex remains a primary challenge for evolutionary biology. Chromosome-based systems (genotypic sex determination) that generate roughly equal numbers of sons and daughters accord with theory, but the adaptive significance of environmental sex determination (that is, when embryonic environmental conditions determine offspring sex, ESD) is a major unsolved problem. Theoretical models predict that selection should favour ESD over genotypic sex determination when the developmental environment differentially influences male versus female fitness (that is, the Charnov-Bull model), but empirical evidence for this hypothesis remains elusive in amniote vertebrates--the clade in which ESD is most prevalent. Here we provide the first substantial empirical support for this model by showing that incubation temperatures influence reproductive success of males differently than that of females in a short-lived lizard (Amphibolurus muricatus, Agamidae) with temperature-dependent sex determination. We incubated eggs at a variety of temperatures, and de-confounded sex and incubation temperature by using hormonal manipulations to embryos. We then raised lizards in field enclosures and quantified their lifetime reproductive success. Incubation temperature affected reproductive success differently in males versus females in exactly the way predicted by theory: the fitness of each sex was maximized by the incubation temperature that produces that sex. Our results provide unequivocal empirical support for the Charnov-Bull model for the adaptive significance of temperature-dependent sex determination in amniote vertebrates.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Warner, D A -- Shine, R -- England -- Nature. 2008 Jan 31;451(7178):566-8. doi: 10.1038/nature06519. Epub 2008 Jan 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Biological Sciences, University of Sydney, Sydney, New South Wales 2006, Australia. dwarner@iastate.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18204437" target="_blank"〉PubMed〈/a〉
    Keywords: Acclimatization/physiology ; Adaptation, Physiological/*physiology ; Animals ; Body Size ; Fadrozole/pharmacology ; Female ; Lizards/*embryology/*physiology ; Male ; Models, Biological ; Ovum/drug effects/growth & development ; Reproduction/physiology ; Sex Characteristics ; Sex Differentiation/*physiology ; *Temperature
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  • 73
    Publication Date: 2008-07-18
    Description: Internal brain states form key determinants for sensory perception, sensorimotor coordination and learning. A prominent reflection of different brain states in the mammalian central nervous system is the presence of distinct patterns of cortical synchrony, as revealed by extracellular recordings of the electroencephalogram, local field potential and action potentials. Such temporal correlations of cortical activity are thought to be fundamental mechanisms of neuronal computation. However, it is unknown how cortical synchrony is reflected in the intracellular membrane potential (V(m)) dynamics of behaving animals. Here we show, using dual whole-cell recordings from layer 2/3 primary somatosensory barrel cortex in behaving mice, that the V(m) of nearby neurons is highly correlated during quiet wakefulness. However, when the mouse is whisking, an internally generated state change reduces the V(m) correlation, resulting in a desynchronized local field potential and electroencephalogram. Action potential activity was sparse during both quiet wakefulness and active whisking. Single action potentials were driven by a large, brief and specific excitatory input that was not present in the V(m) of neighbouring cells. Action potential initiation occurs with a higher signal-to-noise ratio during active whisking than during quiet periods. Therefore, we show that an internal brain state dynamically regulates cortical membrane potential synchrony during behaviour and defines different modes of cortical processing.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Poulet, James F A -- Petersen, Carl C H -- England -- Nature. 2008 Aug 14;454(7206):881-5. doi: 10.1038/nature07150. Epub 2008 Jul 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Sensory Processing, Brain Mind Institute, Faculty of Life Sciences, Ecole Polytechnique Federale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18633351" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Electroencephalography ; Exploratory Behavior/*physiology ; Male ; Membrane Potentials/*physiology ; Mice ; Mice, Inbred C57BL ; Neurons/*physiology ; Somatosensory Cortex/*physiology ; Wakefulness/*physiology
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  • 74
    facet.materialart.
    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2008-12-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wassarman, Paul M -- England -- Nature. 2008 Dec 4;456(7222):586-7. doi: 10.1038/456586a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19052615" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Conserved Sequence ; Crystallography, X-Ray ; Egg Proteins/*chemistry/genetics/*metabolism ; Female ; Fertilization/physiology ; Male ; Membrane Glycoproteins/*chemistry/genetics/*metabolism ; Mice ; Ovum/*chemistry/*metabolism ; Protein Folding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Receptors, Cell Surface/*chemistry/genetics/*metabolism ; Spermatozoa/metabolism
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  • 75
    Publication Date: 2008-05-10
    Description: We present a draft genome sequence of the platypus, Ornithorhynchus anatinus. This monotreme exhibits a fascinating combination of reptilian and mammalian characters. For example, platypuses have a coat of fur adapted to an aquatic lifestyle; platypus females lactate, yet lay eggs; and males are equipped with venom similar to that of reptiles. Analysis of the first monotreme genome aligned these features with genetic innovations. We find that reptile and platypus venom proteins have been co-opted independently from the same gene families; milk protein genes are conserved despite platypuses laying eggs; and immune gene family expansions are directly related to platypus biology. Expansions of protein, non-protein-coding RNA and microRNA families, as well as repeat elements, are identified. Sequencing of this genome now provides a valuable resource for deep mammalian comparative analyses, as well as for monotreme biology and conservation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2803040/" 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/PMC2803040/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Warren, Wesley C -- Hillier, LaDeana W -- Marshall Graves, Jennifer A -- Birney, Ewan -- Ponting, Chris P -- Grutzner, Frank -- Belov, Katherine -- Miller, Webb -- Clarke, Laura -- Chinwalla, Asif T -- Yang, Shiaw-Pyng -- Heger, Andreas -- Locke, Devin P -- Miethke, Pat -- Waters, Paul D -- Veyrunes, Frederic -- Fulton, Lucinda -- Fulton, Bob -- Graves, Tina -- Wallis, John -- Puente, Xose S -- Lopez-Otin, Carlos -- Ordonez, Gonzalo R -- Eichler, Evan E -- Chen, Lin -- Cheng, Ze -- Deakin, Janine E -- Alsop, Amber -- Thompson, Katherine -- Kirby, Patrick -- Papenfuss, Anthony T -- Wakefield, Matthew J -- Olender, Tsviya -- Lancet, Doron -- Huttley, Gavin A -- Smit, Arian F A -- Pask, Andrew -- Temple-Smith, Peter -- Batzer, Mark A -- Walker, Jerilyn A -- Konkel, Miriam K -- Harris, Robert S -- Whittington, Camilla M -- Wong, Emily S W -- Gemmell, Neil J -- Buschiazzo, Emmanuel -- Vargas Jentzsch, Iris M -- Merkel, Angelika -- Schmitz, Juergen -- Zemann, Anja -- Churakov, Gennady -- Kriegs, Jan Ole -- Brosius, Juergen -- Murchison, Elizabeth P -- Sachidanandam, Ravi -- Smith, Carly -- Hannon, Gregory J -- Tsend-Ayush, Enkhjargal -- McMillan, Daniel -- Attenborough, Rosalind -- Rens, Willem -- Ferguson-Smith, Malcolm -- Lefevre, Christophe M -- Sharp, Julie A -- Nicholas, Kevin R -- Ray, David A -- Kube, Michael -- Reinhardt, Richard -- Pringle, Thomas H -- Taylor, James -- Jones, Russell C -- Nixon, Brett -- Dacheux, Jean-Louis -- Niwa, Hitoshi -- Sekita, Yoko -- Huang, Xiaoqiu -- Stark, Alexander -- Kheradpour, Pouya -- Kellis, Manolis -- Flicek, Paul -- Chen, Yuan -- Webber, Caleb -- Hardison, Ross -- Nelson, Joanne -- Hallsworth-Pepin, Kym -- Delehaunty, Kim -- Markovic, Chris -- Minx, Pat -- Feng, Yucheng -- Kremitzki, Colin -- Mitreva, Makedonka -- Glasscock, Jarret -- Wylie, Todd -- Wohldmann, Patricia -- Thiru, Prathapan -- Nhan, Michael N -- Pohl, Craig S -- Smith, Scott M -- Hou, Shunfeng -- Nefedov, Mikhail -- de Jong, Pieter J -- Renfree, Marilyn B -- Mardis, Elaine R -- Wilson, Richard K -- 062023/Wellcome Trust/United Kingdom -- HG002238/HG/NHGRI NIH HHS/ -- MC_U137761446/Medical Research Council/United Kingdom -- P01 CA013106/CA/NCI NIH HHS/ -- P01 CA013106-37/CA/NCI NIH HHS/ -- R01 GM59290/GM/NIGMS NIH HHS/ -- R01 HG002939/HG/NHGRI NIH HHS/ -- R01 HG004037/HG/NHGRI NIH HHS/ -- R01 HG004037-02/HG/NHGRI NIH HHS/ -- R01HG02385/HG/NHGRI NIH HHS/ -- Medical Research Council/United Kingdom -- England -- Nature. 2008 May 8;453(7192):175-83. doi: 10.1038/nature06936.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genome Sequencing Center, Washington University School of Medicine, Campus Box 8501, 4444 Forest Park Avenue, St Louis, Missouri 63108, USA. wwarren@wustl.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18464734" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Composition ; Dentition ; *Evolution, Molecular ; Female ; Genome/*genetics ; Genomic Imprinting/genetics ; Humans ; Immunity/genetics ; Male ; Mammals/genetics ; MicroRNAs/genetics ; Milk Proteins/genetics ; Phylogeny ; Platypus/*genetics/immunology/physiology ; Receptors, Odorant/genetics ; Repetitive Sequences, Nucleic Acid/genetics ; Reptiles/genetics ; Sequence Analysis, DNA ; Spermatozoa/metabolism ; Venoms/genetics ; Zona Pellucida/metabolism
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  • 76
    Publication Date: 2008-01-19
    Description: Brain mechanisms for communication must establish a correspondence between sensory and motor codes used to represent the signal. One idea is that this correspondence is established at the level of single neurons that are active when the individual performs a particular gesture or observes a similar gesture performed by another individual. Although neurons that display a precise auditory-vocal correspondence could facilitate vocal communication, they have yet to be identified. Here we report that a certain class of neurons in the swamp sparrow forebrain displays a precise auditory-vocal correspondence. We show that these neurons respond in a temporally precise fashion to auditory presentation of certain note sequences in this songbird's repertoire and to similar note sequences in other birds' songs. These neurons display nearly identical patterns of activity when the bird sings the same sequence, and disrupting auditory feedback does not alter this singing-related activity, indicating it is motor in nature. Furthermore, these neurons innervate striatal structures important for song learning, raising the possibility that singing-related activity in these cells is compared to auditory feedback to guide vocal learning.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Prather, J F -- Peters, S -- Nowicki, S -- Mooney, R -- R01 DC002524/DC/NIDCD NIH HHS/ -- England -- Nature. 2008 Jan 17;451(7176):305-10. doi: 10.1038/nature06492.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, Duke University Medical Center, North Carolina 27710, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18202651" target="_blank"〉PubMed〈/a〉
    Keywords: Acoustic Stimulation ; Action Potentials ; Animals ; Auditory Perception/*physiology ; Electrophysiology ; Finches/physiology ; High Vocal Center/*cytology/physiology ; Imitative Behavior/*physiology ; Learning/*physiology ; Male ; Neurons/*physiology ; Sparrows/*physiology ; Vocalization, Animal/*physiology
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 77
    Publication Date: 2008-11-07
    Description: DNA sequence information underpins genetic research, enabling discoveries of important biological or medical benefit. Sequencing projects have traditionally used long (400-800 base pair) reads, but the existence of reference sequences for the human and many other genomes makes it possible to develop new, fast approaches to re-sequencing, whereby shorter reads are compared to a reference to identify intraspecies genetic variation. Here we report an approach that generates several billion bases of accurate nucleotide sequence per experiment at low cost. Single molecules of DNA are attached to a flat surface, amplified in situ and used as templates for synthetic sequencing with fluorescent reversible terminator deoxyribonucleotides. Images of the surface are analysed to generate high-quality sequence. We demonstrate application of this approach to human genome sequencing on flow-sorted X chromosomes and then scale the approach to determine the genome sequence of a male Yoruba from Ibadan, Nigeria. We build an accurate consensus sequence from 〉30x average depth of paired 35-base reads. We characterize four million single-nucleotide polymorphisms and four hundred thousand structural variants, many of which were previously unknown. Our approach is effective for accurate, rapid and economical whole-genome re-sequencing and many other biomedical applications.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2581791/" 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/PMC2581791/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bentley, David R -- Balasubramanian, Shankar -- Swerdlow, Harold P -- Smith, Geoffrey P -- Milton, John -- Brown, Clive G -- Hall, Kevin P -- Evers, Dirk J -- Barnes, Colin L -- Bignell, Helen R -- Boutell, Jonathan M -- Bryant, Jason -- Carter, Richard J -- Keira Cheetham, R -- Cox, Anthony J -- Ellis, Darren J -- Flatbush, Michael R -- Gormley, Niall A -- Humphray, Sean J -- Irving, Leslie J -- Karbelashvili, Mirian S -- Kirk, Scott M -- Li, Heng -- Liu, Xiaohai -- Maisinger, Klaus S -- Murray, Lisa J -- Obradovic, Bojan -- Ost, Tobias -- Parkinson, Michael L -- Pratt, Mark R -- Rasolonjatovo, Isabelle M J -- Reed, Mark T -- Rigatti, Roberto -- Rodighiero, Chiara -- Ross, Mark T -- Sabot, Andrea -- Sankar, Subramanian V -- Scally, Aylwyn -- Schroth, Gary P -- Smith, Mark E -- Smith, Vincent P -- Spiridou, Anastassia -- Torrance, Peta E -- Tzonev, Svilen S -- Vermaas, Eric H -- Walter, Klaudia -- Wu, Xiaolin -- Zhang, Lu -- Alam, Mohammed D -- Anastasi, Carole -- Aniebo, Ify C -- Bailey, David M D -- Bancarz, Iain R -- Banerjee, Saibal -- Barbour, Selena G -- Baybayan, Primo A -- Benoit, Vincent A -- Benson, Kevin F -- Bevis, Claire -- Black, Phillip J -- Boodhun, Asha -- Brennan, Joe S -- Bridgham, John A -- Brown, Rob C -- Brown, Andrew A -- Buermann, Dale H -- Bundu, Abass A -- Burrows, James C -- Carter, Nigel P -- Castillo, Nestor -- Chiara E Catenazzi, Maria -- Chang, Simon -- Neil Cooley, R -- Crake, Natasha R -- Dada, Olubunmi O -- Diakoumakos, Konstantinos D -- Dominguez-Fernandez, Belen -- Earnshaw, David J -- Egbujor, Ugonna C -- Elmore, David W -- Etchin, Sergey S -- Ewan, Mark R -- Fedurco, Milan -- Fraser, Louise J -- Fuentes Fajardo, Karin V -- Scott Furey, W -- George, David -- Gietzen, Kimberley J -- Goddard, Colin P -- Golda, George S -- Granieri, Philip A -- Green, David E -- Gustafson, David L -- Hansen, Nancy F -- Harnish, Kevin -- Haudenschild, Christian D -- Heyer, Narinder I -- Hims, Matthew M -- Ho, Johnny T -- Horgan, Adrian M -- Hoschler, Katya -- Hurwitz, Steve -- Ivanov, Denis V -- Johnson, Maria Q -- James, Terena -- Huw Jones, T A -- Kang, Gyoung-Dong -- Kerelska, Tzvetana H -- Kersey, Alan D -- Khrebtukova, Irina -- Kindwall, Alex P -- Kingsbury, Zoya -- Kokko-Gonzales, Paula I -- Kumar, Anil -- Laurent, Marc A -- Lawley, Cynthia T -- Lee, Sarah E -- Lee, Xavier -- Liao, Arnold K -- Loch, Jennifer A -- Lok, Mitch -- Luo, Shujun -- Mammen, Radhika M -- Martin, John W -- McCauley, Patrick G -- McNitt, Paul -- Mehta, Parul -- Moon, Keith W -- Mullens, Joe W -- Newington, Taksina -- Ning, Zemin -- Ling Ng, Bee -- Novo, Sonia M -- O'Neill, Michael J -- Osborne, Mark A -- Osnowski, Andrew -- Ostadan, Omead -- Paraschos, Lambros L -- Pickering, Lea -- Pike, Andrew C -- Pike, Alger C -- Chris Pinkard, D -- Pliskin, Daniel P -- Podhasky, Joe -- Quijano, Victor J -- Raczy, Come -- Rae, Vicki H -- Rawlings, Stephen R -- Chiva Rodriguez, Ana -- Roe, Phyllida M -- Rogers, John -- Rogert Bacigalupo, Maria C -- Romanov, Nikolai -- Romieu, Anthony -- Roth, Rithy K -- Rourke, Natalie J -- Ruediger, Silke T -- Rusman, Eli -- Sanches-Kuiper, Raquel M -- Schenker, Martin R -- Seoane, Josefina M -- Shaw, Richard J -- Shiver, Mitch K -- Short, Steven W -- Sizto, Ning L -- Sluis, Johannes P -- Smith, Melanie A -- Ernest Sohna Sohna, Jean -- Spence, Eric J -- Stevens, Kim -- Sutton, Neil -- Szajkowski, Lukasz -- Tregidgo, Carolyn L -- Turcatti, Gerardo -- Vandevondele, Stephanie -- Verhovsky, Yuli -- Virk, Selene M -- Wakelin, Suzanne -- Walcott, Gregory C -- Wang, Jingwen -- Worsley, Graham J -- Yan, Juying -- Yau, Ling -- Zuerlein, Mike -- Rogers, Jane -- Mullikin, James C -- Hurles, Matthew E -- McCooke, Nick J -- West, John S -- Oaks, Frank L -- Lundberg, Peter L -- Klenerman, David -- Durbin, Richard -- Smith, Anthony J -- B05823/Biotechnology and Biological Sciences Research Council/United Kingdom -- G0701805/Medical Research Council/United Kingdom -- MOL04534/Biotechnology and Biological Sciences Research Council/United Kingdom -- Z01 HG200330-03/Intramural NIH HHS/ -- Biotechnology and Biological Sciences Research Council/United Kingdom -- Wellcome Trust/United Kingdom -- England -- Nature. 2008 Nov 6;456(7218):53-9. doi: 10.1038/nature07517.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Illumina Cambridge Ltd. (Formerly Solexa Ltd), Chesterford Research Park, Little Chesterford, Nr Saffron Walden, Essex CB10 1XL, UK. dbentley@illumina.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18987734" target="_blank"〉PubMed〈/a〉
    Keywords: Chromosomes, Human, X/genetics ; Consensus Sequence/genetics ; Genome, Human/*genetics ; Genomics/economics/*methods ; Genotype ; Humans ; Male ; Nigeria ; Polymorphism, Single Nucleotide/genetics ; Sensitivity and Specificity ; Sequence Analysis, DNA/economics/*methods
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  • 78
    Publication Date: 2008-08-22
    Description: Nuclear exclusion of the PTEN (phosphatase and tensin homologue deleted in chromosome 10) tumour suppressor has been associated with cancer progression. However, the mechanisms leading to this aberrant PTEN localization in human cancers are currently unknown. We have previously reported that ubiquitinylation of PTEN at specific lysine residues regulates its nuclear-cytoplasmic partitioning. Here we show that functional promyelocytic leukaemia protein (PML) nuclear bodies co-ordinate PTEN localization by opposing the action of a previously unknown PTEN-deubiquitinylating enzyme, herpesvirus-associated ubiquitin-specific protease (HAUSP, also known as USP7), and that the integrity of this molecular framework is required for PTEN to be able to enter the nucleus. We find that PTEN is aberrantly localized in acute promyelocytic leukaemia, in which PML function is disrupted by the PML-RARalpha fusion oncoprotein. Remarkably, treatment with drugs that trigger PML-RARalpha degradation, such as all-trans retinoic acid or arsenic trioxide, restore nuclear PTEN. We demonstrate that PML opposes the activity of HAUSP towards PTEN through a mechanism involving the adaptor protein DAXX (death domain-associated protein). In support of this paradigm, we show that HAUSP is overexpressed in human prostate cancer and is associated with PTEN nuclear exclusion. Thus, our results delineate a previously unknown PML-DAXX-HAUSP molecular network controlling PTEN deubiquitinylation and trafficking, which is perturbed by oncogenic cues in human cancer, in turn defining a new deubiquitinylation-dependent model for PTEN subcellular compartmentalization.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3398484/" 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/PMC3398484/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Song, Min Sup -- Salmena, Leonardo -- Carracedo, Arkaitz -- Egia, Ainara -- Lo-Coco, Francesco -- Teruya-Feldstein, Julie -- Pandolfi, Pier Paolo -- P50 CA092629/CA/NCI NIH HHS/ -- P50 CA092629-01/CA/NCI NIH HHS/ -- R01 CA082328/CA/NCI NIH HHS/ -- England -- Nature. 2008 Oct 9;455(7214):813-7. doi: 10.1038/nature07290. Epub 2008 Aug 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cancer Genetics Program, Beth Israel Deaconess Cancer Center and Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18716620" target="_blank"〉PubMed〈/a〉
    Keywords: Active Transport, Cell Nucleus ; Adaptor Proteins, Signal Transducing/metabolism ; Animals ; Apoptosis ; Cell Line, Tumor ; Cell Nucleus/metabolism ; Fibroblasts ; Humans ; Leukemia, Promyelocytic, Acute/metabolism/pathology ; Male ; Mice ; Nuclear Proteins/deficiency/genetics/*metabolism ; PTEN Phosphohydrolase/*metabolism ; Prostatic Neoplasms/metabolism/pathology ; Transcription Factors/deficiency/genetics/*metabolism ; Tretinoin/pharmacology ; Tumor Suppressor Proteins/deficiency/genetics/*metabolism ; Ubiquitin Thiolesterase/*metabolism ; *Ubiquitination ; Ubiquitins/*metabolism
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  • 79
    Publication Date: 2008-07-03
    Description: On activation by receptors, the ubiquitously expressed class IA isoforms (p110alpha and p110beta) of phosphatidylinositol-3-OH kinase (PI(3)K) generate lipid second messengers, which initiate multiple signal transduction cascades. Recent studies have demonstrated specific functions for p110alpha in growth factor and insulin signalling. To probe for distinct functions of p110beta, we constructed conditional knockout mice. Here we show that ablation of p110beta in the livers of the resulting mice leads to impaired insulin sensitivity and glucose homeostasis, while having little effect on phosphorylation of Akt, suggesting the involvement of a kinase-independent role of p110beta in insulin metabolic action. Using established mouse embryonic fibroblasts, we found that removal of p110beta also had little effect on Akt phosphorylation in response to stimulation by insulin and epidermal growth factor, but resulted in retarded cell proliferation. Reconstitution of p110beta-null cells with a wild-type or kinase-dead allele of p110beta demonstrated that p110beta possesses kinase-independent functions in regulating cell proliferation and trafficking. However, the kinase activity of p110beta was required for G-protein-coupled receptor signalling triggered by lysophosphatidic acid and had a function in oncogenic transformation. Most strikingly, in an animal model of prostate tumour formation induced by Pten loss, ablation of p110beta (also known as Pik3cb), but not that of p110alpha (also known as Pik3ca), impeded tumorigenesis with a concomitant diminution of Akt phosphorylation. Taken together, our findings demonstrate both kinase-dependent and kinase-independent functions for p110beta, and strongly indicate the kinase-dependent functions of p110beta as a promising target in cancer therapy.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2750091/" 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/PMC2750091/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jia, Shidong -- Liu, Zhenning -- Zhang, Sen -- Liu, Pixu -- Zhang, Lei -- Lee, Sang Hyun -- Zhang, Jing -- Signoretti, Sabina -- Loda, Massimo -- Roberts, Thomas M -- Zhao, Jean J -- P01 CA050661/CA/NCI NIH HHS/ -- P01 CA050661-200001/CA/NCI NIH HHS/ -- P01 CA089021/CA/NCI NIH HHS/ -- P01 CA089021-06A1/CA/NCI NIH HHS/ -- P50 CA089393/CA/NCI NIH HHS/ -- P50 CA089393-08S1/CA/NCI NIH HHS/ -- P50 CA090381/CA/NCI NIH HHS/ -- P50 CA090381-05/CA/NCI NIH HHS/ -- R01 CA030002/CA/NCI NIH HHS/ -- R01 CA030002-27/CA/NCI NIH HHS/ -- R01 CA134502/CA/NCI NIH HHS/ -- R01 CA134502-01/CA/NCI NIH HHS/ -- England -- Nature. 2008 Aug 7;454(7205):776-9. doi: 10.1038/nature07091. Epub 2008 Jun 25.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cancer Biology, 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/18594509" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cell Proliferation/drug effects ; *Cell Transformation, Neoplastic ; Epidermal Growth Factor/pharmacology ; Fibroblasts/cytology ; Glucose/*metabolism ; Glucose Intolerance/enzymology/genetics ; Homeostasis ; Humans ; Insulin/*metabolism/pharmacology ; Insulin Resistance/genetics ; Liver/enzymology/metabolism ; Male ; Mice ; Mice, Inbred C57BL ; PTEN Phosphohydrolase/deficiency/genetics ; Phosphatidylinositol 3-Kinases/deficiency/genetics/*metabolism ; Phosphorylation/drug effects ; Prostatic Neoplasms/enzymology/genetics/pathology ; Proto-Oncogene Proteins c-akt/metabolism ; Signal Transduction
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  • 80
    Publication Date: 2008-09-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sottas, Pierre-Edouard -- Saudan, Christophe -- Saugy, Martial -- England -- Nature. 2008 Sep 11;455(7210):166. doi: 10.1038/455166a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18784700" target="_blank"〉PubMed〈/a〉
    Keywords: Doping in Sports/*prevention & control ; Forensic Sciences/*methods/*standards ; Humans ; Male ; Sports/standards ; Substance Abuse Detection/*methods/*standards
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  • 81
    Publication Date: 2008-08-22
    Description: Myc is a pleiotropic basic helix-loop-helix leucine zipper transcription factor that coordinates expression of the diverse intracellular and extracellular programs that together are necessary for growth and expansion of somatic cells. In principle, this makes inhibition of Myc an attractive pharmacological approach for treating diverse types of cancer. However, enthusiasm has been muted by lack of direct evidence that Myc inhibition would be therapeutically efficacious, concerns that it would induce serious side effects by inhibiting proliferation of normal tissues, and practical difficulties in designing Myc inhibitory drugs. We have modelled genetically both the therapeutic impact and the side effects of systemic Myc inhibition in a preclinical mouse model of Ras-induced lung adenocarcinoma by reversible, systemic expression of a dominant-interfering Myc mutant. We show that Myc inhibition triggers rapid regression of incipient and established lung tumours, defining an unexpected role for endogenous Myc function in the maintenance of Ras-dependent tumours in vivo. Systemic Myc inhibition also exerts profound effects on normal regenerating tissues. However, these effects are well tolerated over extended periods and rapidly and completely reversible. Our data demonstrate the feasibility of targeting Myc, a common downstream conduit for many oncogenic signals, as an effective, efficient and tumour-specific cancer therapy.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4485609/" 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/PMC4485609/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Soucek, Laura -- Whitfield, Jonathan -- Martins, Carla P -- Finch, Andrew J -- Murphy, Daniel J -- Sodir, Nicole M -- Karnezis, Anthony N -- Swigart, Lamorna Brown -- Nasi, Sergio -- Evan, Gerard I -- 2R01 CA98018/CA/NCI NIH HHS/ -- R01 CA098018/CA/NCI NIH HHS/ -- R01 CA098018-05/CA/NCI NIH HHS/ -- R01 CA098018-06/CA/NCI NIH HHS/ -- R01 CA098018-07/CA/NCI NIH HHS/ -- T32 CA108462/CA/NCI NIH HHS/ -- T32 CA108462-01/CA/NCI NIH HHS/ -- England -- Nature. 2008 Oct 2;455(7213):679-83. doi: 10.1038/nature07260. Epub 2008 Aug 17.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology and Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California 94143-0875, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18716624" target="_blank"〉PubMed〈/a〉
    Keywords: Adenocarcinoma/genetics/metabolism/pathology/therapy ; Animals ; Gastrointestinal Tract/cytology/metabolism/pathology ; Genes, Dominant/genetics ; Genes, ras ; *Genetic Therapy ; Lung Neoplasms/genetics/metabolism/pathology/*therapy ; Male ; Mice ; *Models, Biological ; Mutation/genetics ; Oncogene Protein p21(ras)/metabolism ; Proto-Oncogene Proteins c-myc/*antagonists & inhibitors/*genetics/metabolism ; Skin/cytology/metabolism/pathology ; Testis/cytology/metabolism/pathology ; Transgenes/genetics
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  • 82
    Publication Date: 2008-05-02
    Description: Half a century ago, the apical ectodermal ridge (AER) at the distal tip of the tetrapod limb bud was shown to produce signals necessary for development along the proximal-distal (P-D) axis, but how these signals influence limb patterning is still much debated. Fibroblast growth factor (FGF) gene family members are key AER-derived signals, with Fgf4, Fgf8, Fgf9 and Fgf17 expressed specifically in the mouse AER. Here we demonstrate that mouse limbs lacking Fgf4, Fgf9 and Fgf17 have normal skeletal pattern, indicating that Fgf8 is sufficient among AER-FGFs to sustain normal limb formation. Inactivation of Fgf8 alone causes a mild skeletal phenotype; however, when we also removed different combinations of the other AER-FGF genes, we obtained unexpected skeletal phenotypes of increasing severity, reflecting the contribution that each FGF can make to the total AER-FGF signal. Analysis of the compound mutant limb buds revealed that, in addition to sustaining cell survival, AER-FGFs regulate P-D-patterning gene expression during early limb bud development, providing genetic evidence that AER-FGFs function to specify a distal domain and challenging the long-standing hypothesis that AER-FGF signalling is permissive rather than instructive for limb patterning. We discuss how a two-signal model for P-D patterning can be integrated with the concept of early specification to explain the genetic data presented here.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2631409/" 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/PMC2631409/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mariani, Francesca V -- Ahn, Christina P -- Martin, Gail R -- F32 HD008696/HD/NICHD NIH HHS/ -- F32 HD008696-01/HD/NICHD NIH HHS/ -- F32 HD008696-02/HD/NICHD NIH HHS/ -- F32 HD008696-03/HD/NICHD NIH HHS/ -- R01 HD034380/HD/NICHD NIH HHS/ -- R01 HD034380-05/HD/NICHD NIH HHS/ -- R01 HD034380-06/HD/NICHD NIH HHS/ -- R01 HD034380-07/HD/NICHD NIH HHS/ -- R01 HD034380-08/HD/NICHD NIH HHS/ -- R01 HD034380-09/HD/NICHD NIH HHS/ -- R01 HD34380/HD/NICHD NIH HHS/ -- England -- Nature. 2008 May 15;453(7193):401-5. doi: 10.1038/nature06876. Epub 2008 Apr 30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anatomy and Program in Developmental Biology, School of Medicine, University of California at San Francisco, San Francisco, California 94158-2324, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18449196" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Body Patterning/*genetics/*physiology ; Bone and Bones/embryology/metabolism ; Cell Survival ; Female ; Fibroblast Growth Factor 8/deficiency/genetics/*metabolism ; Fibroblast Growth Factors/deficiency/genetics/*metabolism ; Homeodomain Proteins/genetics ; Limb Buds/cytology/*embryology/metabolism ; Male ; Mice ; Neoplasm Proteins/genetics ; Organ Size ; Signal Transduction
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  • 83
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    Nature Publishing Group (NPG)
    Publication Date: 2008-08-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Berry, Donald A -- England -- Nature. 2008 Aug 7;454(7205):692-3. doi: 10.1038/454692a.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Quantitative Sciences, Department of Biostatistics, MD Anderson Cancer Center, University of Texas, 1400 Pressler Street, Houston, Texas 77030-1402, USA. dberry@mdanderson.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18685682" target="_blank"〉PubMed〈/a〉
    Keywords: Doping in Sports/*prevention & control ; False Positive Reactions ; Female ; Humans ; Male ; Probability ; Reproducibility of Results ; Sample Size ; Sensitivity and Specificity ; *Sports/ethics/standards ; Substance Abuse Detection/methods/*standards
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  • 84
    Publication Date: 2008-09-23
    Description: Type 1 diabetes (T1D) is a debilitating autoimmune disease that results from T-cell-mediated destruction of insulin-producing beta-cells. Its incidence has increased during the past several decades in developed countries, suggesting that changes in the environment (including the human microbial environment) may influence disease pathogenesis. The incidence of spontaneous T1D in non-obese diabetic (NOD) mice can be affected by the microbial environment in the animal housing facility or by exposure to microbial stimuli, such as injection with mycobacteria or various microbial products. Here we show that specific pathogen-free NOD mice lacking MyD88 protein (an adaptor for multiple innate immune receptors that recognize microbial stimuli) do not develop T1D. The effect is dependent on commensal microbes because germ-free MyD88-negative NOD mice develop robust diabetes, whereas colonization of these germ-free MyD88-negative NOD mice with a defined microbial consortium (representing bacterial phyla normally present in human gut) attenuates T1D. We also find that MyD88 deficiency changes the composition of the distal gut microbiota, and that exposure to the microbiota of specific pathogen-free MyD88-negative NOD donors attenuates T1D in germ-free NOD recipients. Together, these findings indicate that interaction of the intestinal microbes with the innate immune system is a critical epigenetic factor modifying T1D predisposition.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2574766/" 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/PMC2574766/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wen, Li -- Ley, Ruth E -- Volchkov, Pavel Yu -- Stranges, Peter B -- Avanesyan, Lia -- Stonebraker, Austin C -- Hu, Changyun -- Wong, F Susan -- Szot, Gregory L -- Bluestone, Jeffrey A -- Gordon, Jeffrey I -- Chervonsky, Alexander V -- DK063452/DK/NIDDK NIH HHS/ -- DK30292/DK/NIDDK NIH HHS/ -- DK42086/DK/NIDDK NIH HHS/ -- DK45735/DK/NIDDK NIH HHS/ -- DK70977/DK/NIDDK NIH HHS/ -- P30 DK042086/DK/NIDDK NIH HHS/ -- P30 DK042086-16/DK/NIDDK NIH HHS/ -- P30 DK045735/DK/NIDDK NIH HHS/ -- P30 DK045735-10/DK/NIDDK NIH HHS/ -- P30 DK045735-119006/DK/NIDDK NIH HHS/ -- P30 DK056341/DK/NIDDK NIH HHS/ -- P30 DK056341-07/DK/NIDDK NIH HHS/ -- P30 DK056341-08/DK/NIDDK NIH HHS/ -- P30 DK063720/DK/NIDDK NIH HHS/ -- P30 DK063720-01/DK/NIDDK NIH HHS/ -- P30 DK63720/DK/NIDDK NIH HHS/ -- R01 DK030292/DK/NIDDK NIH HHS/ -- R01 DK030292-24/DK/NIDDK NIH HHS/ -- R01 DK070977/DK/NIDDK NIH HHS/ -- R01 DK070977-04/DK/NIDDK NIH HHS/ -- R21 DK063452/DK/NIDDK NIH HHS/ -- R21 DK063452-02/DK/NIDDK NIH HHS/ -- R37 AI046643/AI/NIAID NIH HHS/ -- R37 AI046643-10/AI/NIAID NIH HHS/ -- R37 AI46643/AI/NIAID NIH HHS/ -- England -- Nature. 2008 Oct 23;455(7216):1109-13. doi: 10.1038/nature07336. Epub 2008 Sep 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Endocrinology, Yale University School of Medicine, New Haven, Connecticut 06520, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18806780" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacteria/classification/genetics/*immunology/isolation & purification ; CD8-Positive T-Lymphocytes/immunology ; Diabetes Mellitus, Type 1/genetics/*immunology/*microbiology ; Female ; Immunity, Innate/genetics/*immunology ; Interferon-gamma/immunology ; Intestines/*microbiology ; Islets of Langerhans/pathology ; Male ; Mice ; Mice, Inbred NOD ; Mice, Knockout ; Mice, SCID ; Molecular Sequence Data ; Myeloid Differentiation Factor 88/genetics ; Phylogeny ; Specific Pathogen-Free Organisms ; Time Factors
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  • 85
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    Nature Publishing Group (NPG)
    Publication Date: 2008-02-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jones, Dan -- England -- Nature. 2008 Jan 31;451(7178):512-5. doi: 10.1038/451512a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18235473" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; Aggression/*physiology/psychology ; Altruism ; Anger/physiology ; Animals ; Antisocial Personality Disorder/physiopathology ; *Biological Evolution ; Conflict (Psychology) ; Female ; History, 15th Century ; History, 16th Century ; History, 17th Century ; History, 18th Century ; History, 19th Century ; History, 20th Century ; History, 21st Century ; History, Medieval ; *Homicide/history/psychology ; Humans ; Male ; Models, Biological ; Morals ; Pan troglodytes/physiology ; Prefrontal Cortex/anatomy & histology/physiology ; Sex Characteristics ; United Nations ; Violence/psychology ; Warfare
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  • 86
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    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2008-12-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Spradling, Allan C -- Howard Hughes Medical Institute/ -- England -- Nature. 2008 Dec 4;456(7222):583-5. doi: 10.1038/456583a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19052613" target="_blank"〉PubMed〈/a〉
    Keywords: Aging/*physiology ; Animals ; Cell Dedifferentiation ; Cell Division ; Centrosome/*metabolism ; Drosophila melanogaster/*cytology ; Male ; *Spermatogenesis ; Spermatozoa/*cytology ; Stem Cells/*cytology ; Testis/cytology
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  • 87
    Publication Date: 2008-02-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Crews, David -- Bull, James J -- England -- Nature. 2008 Jan 31;451(7178):527-8. doi: 10.1038/451527a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18235487" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological/*physiology ; Animals ; Body Size ; Fadrozole/pharmacology ; Female ; Lizards/*embryology/*physiology ; Male ; Models, Biological ; Ovum/drug effects/growth & development ; Reproduction/physiology ; Sex Characteristics ; Sex Differentiation/*physiology ; *Temperature
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  • 88
    Publication Date: 2008-09-06
    Description: Human cancer cells typically harbour multiple chromosomal aberrations, nucleotide substitutions and epigenetic modifications that drive malignant transformation. The Cancer Genome Atlas (TCGA) pilot project aims to assess the value of large-scale multi-dimensional analysis of these molecular characteristics in human cancer and to provide the data rapidly to the research community. Here we report the interim integrative analysis of DNA copy number, gene expression and DNA methylation aberrations in 206 glioblastomas--the most common type of adult brain cancer--and nucleotide sequence aberrations in 91 of the 206 glioblastomas. This analysis provides new insights into the roles of ERBB2, NF1 and TP53, uncovers frequent mutations of the phosphatidylinositol-3-OH kinase regulatory subunit gene PIK3R1, and provides a network view of the pathways altered in the development of glioblastoma. Furthermore, integration of mutation, DNA methylation and clinical treatment data reveals a link between MGMT promoter methylation and a hypermutator phenotype consequent to mismatch repair deficiency in treated glioblastomas, an observation with potential clinical implications. Together, these findings establish the feasibility and power of TCGA, demonstrating that it can rapidly expand knowledge of the molecular basis of cancer.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2671642/" 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/PMC2671642/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cancer Genome Atlas Research Network -- R01 CA099041/CA/NCI NIH HHS/ -- R01 CA099041-05/CA/NCI NIH HHS/ -- T32 GM007753/GM/NIGMS NIH HHS/ -- U24 CA126543-01/CA/NCI NIH HHS/ -- U24 CA126544/CA/NCI NIH HHS/ -- U24 CA126544-01/CA/NCI NIH HHS/ -- U24 CA126546/CA/NCI NIH HHS/ -- U24 CA126546-01/CA/NCI NIH HHS/ -- U24 CA126551-01/CA/NCI NIH HHS/ -- U24 CA126554/CA/NCI NIH HHS/ -- U24 CA126554-01/CA/NCI NIH HHS/ -- U24 CA126561/CA/NCI NIH HHS/ -- U24 CA126561-01/CA/NCI NIH HHS/ -- U24 CA126563/CA/NCI NIH HHS/ -- U24 CA126563-01/CA/NCI NIH HHS/ -- U24CA126543/CA/NCI NIH HHS/ -- U24CA126544/CA/NCI NIH HHS/ -- U24CA126546/CA/NCI NIH HHS/ -- U24CA126551/CA/NCI NIH HHS/ -- U24CA126554/CA/NCI NIH HHS/ -- U24CA126561/CA/NCI NIH HHS/ -- U24CA126563/CA/NCI NIH HHS/ -- U54 HG003067/HG/NHGRI NIH HHS/ -- U54 HG003067-01/HG/NHGRI NIH HHS/ -- U54 HG003079/HG/NHGRI NIH HHS/ -- U54 HG003079-05/HG/NHGRI NIH HHS/ -- U54 HG003273/HG/NHGRI NIH HHS/ -- U54 HG003273-01/HG/NHGRI NIH HHS/ -- U54HG003067/HG/NHGRI NIH HHS/ -- U54HG003079/HG/NHGRI NIH HHS/ -- U54HG003273/HG/NHGRI NIH HHS/ -- England -- Nature. 2008 Oct 23;455(7216):1061-8. doi: 10.1038/nature07385. Epub 2008 Sep 4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18772890" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Aged ; Aged, 80 and over ; Brain Neoplasms/*genetics ; DNA Methylation ; DNA Modification Methylases/genetics ; DNA Repair/genetics ; DNA Repair Enzymes/genetics ; Female ; Gene Dosage ; *Gene Expression Regulation, Neoplastic ; Genes, Tumor Suppressor ; Genes, erbB-1/genetics ; Genome, Human/genetics ; *Genomics ; Glioblastoma/*genetics ; Humans ; Male ; Middle Aged ; Models, Molecular ; Mutation/genetics ; Neurofibromin 1/genetics ; Phosphatidylinositol 3-Kinases/genetics ; Protein Structure, Tertiary ; Retrospective Studies ; Signal Transduction/genetics ; Tumor Suppressor Proteins/genetics
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  • 89
    Publication Date: 2008-04-19
    Description: The association of genetic variation with disease and drug response, and improvements in nucleic acid technologies, have given great optimism for the impact of 'genomic medicine'. However, the formidable size of the diploid human genome, approximately 6 gigabases, has prevented the routine application of sequencing methods to deciphering complete individual human genomes. To realize the full potential of genomics for human health, this limitation must be overcome. Here we report the DNA sequence of a diploid genome of a single individual, James D. Watson, sequenced to 7.4-fold redundancy in two months using massively parallel sequencing in picolitre-size reaction vessels. This sequence was completed in two months at approximately one-hundredth of the cost of traditional capillary electrophoresis methods. Comparison of the sequence to the reference genome led to the identification of 3.3 million single nucleotide polymorphisms, of which 10,654 cause amino-acid substitution within the coding sequence. In addition, we accurately identified small-scale (2-40,000 base pair (bp)) insertion and deletion polymorphism as well as copy number variation resulting in the large-scale gain and loss of chromosomal segments ranging from 26,000 to 1.5 million base pairs. Overall, these results agree well with recent results of sequencing of a single individual by traditional methods. However, in addition to being faster and significantly less expensive, this sequencing technology avoids the arbitrary loss of genomic sequences inherent in random shotgun sequencing by bacterial cloning because it amplifies DNA in a cell-free system. As a result, we further demonstrate the acquisition of novel human sequence, including novel genes not previously identified by traditional genomic sequencing. This is the first genome sequenced by next-generation technologies. Therefore it is a pilot for the future challenges of 'personalized genome sequencing'.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wheeler, David A -- Srinivasan, Maithreyan -- Egholm, Michael -- Shen, Yufeng -- Chen, Lei -- McGuire, Amy -- He, Wen -- Chen, Yi-Ju -- Makhijani, Vinod -- Roth, G Thomas -- Gomes, Xavier -- Tartaro, Karrie -- Niazi, Faheem -- Turcotte, Cynthia L -- Irzyk, Gerard P -- Lupski, James R -- Chinault, Craig -- Song, Xing-zhi -- Liu, Yue -- Yuan, Ye -- Nazareth, Lynne -- Qin, Xiang -- Muzny, Donna M -- Margulies, Marcel -- Weinstock, George M -- Gibbs, Richard A -- Rothberg, Jonathan M -- U54 HG003273/HG/NHGRI NIH HHS/ -- England -- Nature. 2008 Apr 17;452(7189):872-6. doi: 10.1038/nature06884.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Human Genome Sequencing Center, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18421352" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Computational Biology ; Genetic Predisposition to Disease/genetics ; Genetic Variation/*genetics ; Genome, Human/*genetics ; Genomics/economics/*methods/trends ; Genotype ; Humans ; Individuality ; Male ; Oligonucleotide Array Sequence Analysis ; Polymorphism, Single Nucleotide/genetics ; Reproducibility of Results ; Sensitivity and Specificity ; Sequence Alignment ; Sequence Analysis, DNA/economics/*methods ; Software
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  • 90
    Publication Date: 2008-07-25
    Description: In many organisms, population-density sensing and sexual attraction rely on small-molecule-based signalling systems. In the nematode Caenorhabditis elegans, population density is monitored through specific glycosides of the dideoxysugar ascarylose (the 'ascarosides') that promote entry into an alternative larval stage, the non-feeding and highly persistent dauer stage. In addition, adult C. elegans males are attracted to hermaphrodites by a previously unidentified small-molecule signal. Here we show, by means of combinatorial activity-guided fractionation of the C. elegans metabolome, that the mating signal consists of a synergistic blend of three dauer-inducing ascarosides, which we call ascr#2, ascr#3 and ascr#4. This blend of ascarosides acts as a potent male attractant at very low concentrations, whereas at the higher concentrations required for dauer formation the compounds no longer attract males and instead deter hermaphrodites. The ascarosides ascr#2 and ascr#3 carry different, but overlapping, information, as ascr#3 is more potent as a male attractant than ascr#2, whereas ascr#2 is slightly more potent than ascr#3 in promoting dauer formation. We demonstrate that ascr#2, ascr#3 and ascr#4 are strongly synergistic, and that two types of neuron, the amphid single-ciliated sensory neuron type K (ASK) and the male-specific cephalic companion neuron (CEM), are required for male attraction by ascr#3. On the basis of these results, male attraction and dauer formation in C. elegans appear as alternative behavioural responses to a common set of signalling molecules. The ascaroside signalling system thus connects reproductive and developmental pathways and represents a unique example of structure- and concentration-dependent differential activity of signalling molecules.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2774729/" 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/PMC2774729/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Srinivasan, Jagan -- Kaplan, Fatma -- Ajredini, Ramadan -- Zachariah, Cherian -- Alborn, Hans T -- Teal, Peter E A -- Malik, Rabia U -- Edison, Arthur S -- Sternberg, Paul W -- Schroeder, Frank C -- P41 GM079571/GM/NIGMS NIH HHS/ -- P41 GM079571-02/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2008 Aug 28;454(7208):1115-8. doi: 10.1038/nature07168. Epub 2008 Jul 23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Biology Division, California Institute of Technology, 1200 E. California Boulevard, Pasadena, California 91125, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18650807" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Caenorhabditis elegans/*drug effects/growth & development/metabolism/*physiology ; Disorders of Sex Development ; Escherichia coli/physiology ; Glycolipids/chemistry/isolation & purification/metabolism/pharmacology ; Hexoses/chemistry/isolation & purification/metabolism/pharmacology ; Male ; Neurons/metabolism ; Population Density ; Sex Attractants/chemistry/isolation & purification/*metabolism/*pharmacology ; Sexual Behavior, Animal/*drug effects/physiology
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  • 91
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    Nature Publishing Group (NPG)
    Publication Date: 2008-03-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marris, Emma -- England -- Nature. 2008 Mar 27;452(7186):394-5. doi: 10.1038/452394a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18368084" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Domestic ; Animals, Wild ; Anura/*physiology ; Biodiversity ; Conservation of Natural Resources/*methods ; *Ecosystem ; Extinction, Biological ; Female ; Male ; Population Density
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  • 92
    Publication Date: 2008-11-21
    Description: The kidney has an important role in the regulation of acid-base homeostasis. Renal ammonium production and excretion are essential for net acid excretion under basal conditions and during metabolic acidosis. Ammonium is secreted into the urine by the collecting duct, a distal nephron segment where ammonium transport is believed to occur by non-ionic NH(3) diffusion coupled to H(+) secretion. Here we show that this process is largely dependent on the Rhesus factor Rhcg. Mice lacking Rhcg have abnormal urinary acidification due to impaired ammonium excretion on acid loading-a feature of distal renal tubular acidosis. In vitro microperfused collecting ducts of Rhcg(-/-) acid-loaded mice show reduced apical permeability to NH(3) and impaired transepithelial NH(3) transport. Furthermore, Rhcg is localized in epididymal epithelial cells and is required for normal fertility and epididymal fluid pH. We anticipate a critical role for Rhcg in ammonium handling and pH homeostasis both in the kidney and the male reproductive tract.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Biver, Sophie -- Belge, Hendrica -- Bourgeois, Soline -- Van Vooren, Pascale -- Nowik, Marta -- Scohy, Sophie -- Houillier, Pascal -- Szpirer, Josiane -- Szpirer, Claude -- Wagner, Carsten A -- Devuyst, Olivier -- Marini, Anna Maria -- England -- Nature. 2008 Nov 20;456(7220):339-43. doi: 10.1038/nature07518.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Universite Libre de Bruxelles (U.L.B.), Institut de Biologie et de Medecine Moleculaires, Laboratoire de Biologie du Developpement, Gosselies, Belgium.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19020613" target="_blank"〉PubMed〈/a〉
    Keywords: Acidosis/physiopathology ; Acids/metabolism ; Animals ; Biological Transport ; Body Fluids ; Cation Transport Proteins/deficiency/genetics/*metabolism ; Epithelial Cells/metabolism ; Fertility/*physiology ; Gene Deletion ; Genitalia, Male/cytology/metabolism ; Homeostasis ; Hydrogen-Ion Concentration ; Kidney/*physiology ; Kidney Tubules, Collecting/physiology ; Kidney Tubules, Distal/physiology ; Male ; Membrane Glycoproteins/deficiency/genetics/*metabolism ; Mice ; Permeability ; Quaternary Ammonium Compounds/*urine ; Stress, Physiological ; Weight Loss
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  • 93
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    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2008-09-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Whitfield, John -- England -- Nature. 2008 Sep 18;455(7211):281-4. doi: 10.1038/455281a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18800108" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Austria ; *Biological Evolution ; Biology/*trends ; Congresses as Topic ; Female ; Heredity ; Humans ; Male ; *Models, Biological ; Selection, Genetic
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    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 94
    Publication Date: 2008-10-31
    Description: Calcium signalling in astrocytes couples changes in neural activity to alterations in cerebral blood flow by eliciting vasoconstriction or vasodilation of arterioles. However, the mechanism for how these opposite astrocyte influences provide appropriate changes in vessel tone within an environment that has dynamic metabolic requirements remains unclear. Here we show that the ability of astrocytes to induce vasodilations over vasoconstrictions relies on the metabolic state of the rat brain tissue. When oxygen availability is lowered and astrocyte calcium concentration is elevated, astrocyte glycolysis and lactate release are maximized. External lactate attenuates transporter-mediated uptake from the extracellular space of prostaglandin E(2), leading to accumulation and subsequent vasodilation. In conditions of low oxygen concentration extracellular adenosine also increases, which blocks astrocyte-mediated constriction, facilitating dilation. These data reveal the role of metabolic substrates in regulating brain blood flow and provide a mechanism for differential astrocyte control over cerebrovascular diameter during different states of brain activation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4097022/" 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/PMC4097022/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gordon, Grant R J -- Choi, Hyun B -- Rungta, Ravi L -- Ellis-Davies, Graham C R -- MacVicar, Brian A -- R01 GM053395/GM/NIGMS NIH HHS/ -- R01 GM053395-13/GM/NIGMS NIH HHS/ -- England -- Nature. 2008 Dec 11;456(7223):745-9. doi: 10.1038/nature07525. Epub 2008 Oct 29.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Brain Research Centre, Department of Psychiatry, University of British Columbia, British Columbia T2N 2B5, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18971930" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine/metabolism/pharmacology ; Animals ; Arterioles/drug effects/*metabolism ; Astrocytes/*metabolism ; Brain/*blood supply/*metabolism ; Dinoprostone/metabolism ; Glycolysis ; Lactic Acid/metabolism ; Male ; Organic Anion Transporters/metabolism ; Oxygen/metabolism ; Pressure ; Prostaglandin-Endoperoxide Synthases/metabolism ; Rats ; Rats, Sprague-Dawley ; Vasoconstriction/drug effects/*physiology ; Vasodilation/drug effects/*physiology ; Vasodilator Agents/pharmacology
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 95
    Publication Date: 2008-05-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Martens, Koen -- Schon, Isa -- England -- Nature. 2008 May 29;453(7195):587. doi: 10.1038/453587b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18509420" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Crustacea/anatomy & histology/*physiology ; Female ; History, 19th Century ; History, Ancient ; Male ; Reproduction, Asexual/*physiology ; Rotifera/*physiology ; Time Factors
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 96
    Publication Date: 2008-05-13
    Description: Despite intense investigation, mechanisms that facilitate the emergence of the pre-eclampsia phenotype in women are still unknown. Placental hypoxia, hypertension, proteinuria and oedema are the principal clinical features of this disease. It is speculated that hypoxia-driven disruption of the angiogenic balance involving vascular endothelial growth factor (VEGF)/placenta-derived growth factor (PLGF) and soluble Fms-like tyrosine kinase-1 (sFLT-1, the soluble form of VEGF receptor 1) might contribute to some of the maternal symptoms of pre-eclampsia. However, pre-eclampsia does not develop in all women with high sFLT-1 or low PLGF levels, and it also occurs in some women with low sFLT-1 and high PLGF levels. Moreover, recent experiments strongly suggest that several soluble factors affecting the vasculature are probably elevated because of placental hypoxia in the pre-eclamptic women, indicating that upstream molecular defect(s) may contribute to pre-eclampsia. Here we show that pregnant mice deficient in catechol-O-methyltransferase (COMT) show a pre-eclampsia-like phenotype resulting from an absence of 2-methoxyoestradiol (2-ME), a natural metabolite of oestradiol that is elevated during the third trimester of normal human pregnancy. 2-ME ameliorates all pre-eclampsia-like features without toxicity in the Comt(-/-) pregnant mice and suppresses placental hypoxia, hypoxia-inducible factor-1alpha expression and sFLT-1 elevation. The levels of COMT and 2-ME are significantly lower in women with severe pre-eclampsia. Our studies identify a genetic mouse model for pre-eclampsia and suggest that 2-ME may have utility as a plasma and urine diagnostic marker for this disease, and may also serve as a therapeutic supplement to prevent or treat this disorder.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kanasaki, Keizo -- Palmsten, Kristin -- Sugimoto, Hikaru -- Ahmad, Shakil -- Hamano, Yuki -- Xie, Liang -- Parry, Samuel -- Augustin, Hellmut G -- Gattone, Vincent H -- Folkman, Judah -- Strauss, Jerome F -- Kalluri, Raghu -- DK 13193/DK/NIDDK NIH HHS/ -- DK 55001/DK/NIDDK NIH HHS/ -- DK 61688/DK/NIDDK NIH HHS/ -- DK 62987/DK/NIDDK NIH HHS/ -- G0700288/Medical Research Council/United Kingdom -- R01 DK055001/DK/NIDDK NIH HHS/ -- R01 DK061688/DK/NIDDK NIH HHS/ -- British Heart Foundation/United Kingdom -- Medical Research Council/United Kingdom -- England -- Nature. 2008 Jun 19;453(7198):1117-21. doi: 10.1038/nature06951. Epub 2008 May 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Matrix Biology, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts 02215, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18469803" target="_blank"〉PubMed〈/a〉
    Keywords: Albumins/analysis ; Animals ; Anoxia/metabolism ; Blood Pressure ; Catechol O-Methyltransferase/analysis/*deficiency/genetics ; Creatinine/urine ; Disease Models, Animal ; Estradiol/*analogs & derivatives/blood/*deficiency/urine ; Female ; Humans ; Hypertension ; Hypoxia-Inducible Factor 1, alpha Subunit/metabolism ; Killer Cells, Natural/immunology ; Litter Size ; Male ; Mice ; Placenta/enzymology/pathology ; Pre-Eclampsia/blood/enzymology/*metabolism/urine ; Pregnancy ; Proteinuria ; Vascular Endothelial Growth Factor Receptor-1/blood
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 97
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    Nature Publishing Group (NPG)
    Publication Date: 2008-05-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cyranoski, David -- England -- Nature. 2008 May 22;453(7194):435. doi: 10.1038/453435a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18497781" target="_blank"〉PubMed〈/a〉
    Keywords: Aedes/genetics/*physiology ; Animals ; Dengue/*prevention & control/*transmission ; Evaluation Studies as Topic ; Female ; Fertility/genetics/*physiology ; *Genetic Engineering ; Humans ; Malaysia ; Male ; Mosquito Control/*methods
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 98
    Publication Date: 2008-03-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cyranoski, David -- England -- Nature. 2008 Mar 27;452(7186):406-8. doi: 10.1038/452406a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18368095" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Animals ; Cell Culture Techniques ; Cell Differentiation ; Cell- and Tissue-Based Therapy/ethics/trends ; Embryonic Stem Cells/cytology/transplantation ; Female ; Humans ; Male ; Mice ; Pluripotent Stem Cells/*cytology/transplantation ; Reproductive Techniques, Assisted/ethics/trends ; Research Embryo Creation/ethics/legislation & jurisprudence ; Skin/cytology ; Transduction, Genetic/methods/standards
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 99
    Publication Date: 2008-02-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaplan, Matt -- England -- Nature. 2008 Feb 14;451(7180):760-2. doi: 10.1038/451760a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18272991" target="_blank"〉PubMed〈/a〉
    Keywords: Courtship/*psychology ; Decision Making ; Female ; Humans ; *Love ; Male ; Social Sciences/*methods ; Surveys and Questionnaires ; Time Factors
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    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 100
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    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2008-03-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cyranoski, David -- Baker, Monya -- England -- Nature. 2008 Mar 13;452(7184):132. doi: 10.1038/452132a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18337778" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Adult Stem Cells/*cytology ; Embryonic Stem Cells/*cytology ; Endocytosis ; Genetic Vectors ; Humans ; Male ; *Nanotubes, Carbon/adverse effects ; Peer Review, Research/standards ; Pluripotent Stem Cells/*cytology ; Reproducibility of Results ; Spermatozoa/cytology ; Time Factors ; Transfection/instrumentation/*methods ; Uncertainty
    Print ISSN: 0028-0836
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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