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  • *Biodiversity  (85)
  • Mice, Inbred C57BL  (85)
  • American Association for the Advancement of Science (AAAS)  (170)
  • 2015-2019
  • 2010-2014  (170)
  • 2011  (77)
  • 2010  (93)
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  • 2015-2019
  • 2010-2014  (170)
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  • 1
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    PRDM9 is a major determinant of meiotic recombination hotspots in humans and mice (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-01-02
    Description: Meiotic recombination events cluster into narrow segments of the genome, defined as hotspots. Here, we demonstrate that a major player for hotspot specification is the Prdm9 gene. First, two mouse strains that differ in hotspot usage are polymorphic for the zinc finger DNA binding array of PRDM9. Second, the human consensus PRDM9 allele is predicted to recognize the 13-mer motif enriched at human hotspots; this DNA binding specificity is verified by in vitro studies. Third, allelic variants of PRDM9 zinc fingers are significantly associated with variability in genome-wide hotspot usage among humans. Our results provide a molecular basis for the distribution of meiotic recombination in mammals, in which the binding of PRDM9 to specific DNA sequences targets the initiation of recombination at specific locations in the genome.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4295902/" 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/PMC4295902/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baudat, F -- Buard, J -- Grey, C -- Fledel-Alon, A -- Ober, C -- Przeworski, M -- Coop, G -- de Massy, B -- 03S1/PHS HHS/ -- GM83098/GM/NIGMS NIH HHS/ -- HD21244/HD/NICHD NIH HHS/ -- HL085197/HL/NHLBI NIH HHS/ -- R01 GM083098/GM/NIGMS NIH HHS/ -- R01 HD021244/HD/NICHD NIH HHS/ -- R01 HL085197/HL/NHLBI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2010 Feb 12;327(5967):836-40. doi: 10.1126/science.1183439. Epub 2009 Dec 31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut de Genetique Humaine, UPR1142, CNRS, Montpellier, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20044539" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Amino Acid Sequence ; Animals ; Base Sequence ; Binding Sites ; DNA/chemistry/metabolism ; DNA Breaks, Double-Stranded ; DNA-Binding Proteins/chemistry/genetics/metabolism ; Genome ; Genome, Human ; Genotype ; Histone-Lysine N-Methyltransferase/chemistry/*genetics/*metabolism ; Humans ; Meiosis/*genetics ; Mice ; Mice, Inbred C57BL ; Molecular Sequence Data ; Phenotype ; *Recombination, Genetic ; Zinc Fingers/genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
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    The ligase PIAS1 restricts natural regulatory T cell differentiation by epigenetic repression (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-10-23
    Description: CD4(+)Foxp3(+) regulatory T (T(reg)) cells are important for maintaining immune tolerance. Understanding the molecular mechanism that regulates T(reg) differentiation will facilitate the development of effective therapeutic strategies against autoimmune diseases. We report here that the SUMO E3 ligase PIAS1 restricts the differentiation of natural T(reg) cells by maintaining a repressive chromatin state of the Foxp3 promoter. PIAS1 acts by binding to the Foxp3 promoter to recruit DNA methyltransferases and heterochromatin protein 1 for epigenetic modifications. Pias1 deletion caused promoter demethylation, reduced histone H3 methylation at Lys(9), and enhanced promoter accessibility. Consistently, Pias1(-/-) mice displayed an increased natural T(reg) cell population and were resistant to the development of experimental autoimmune encephalomyelitis. Our studies have identified an epigenetic mechanism that negatively regulates the differentiation of natural T(reg) cells.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3043201/" 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/PMC3043201/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, Bin -- Tahk, Samuel -- Yee, Kathleen M -- Fan, Guoping -- Shuai, Ke -- K01 AR52717-01/AR/NIAMS NIH HHS/ -- R01 AI063286/AI/NIAID NIH HHS/ -- R01 AI063286-05/AI/NIAID NIH HHS/ -- R01 GM085797/GM/NIGMS NIH HHS/ -- R01 GM085797-03/GM/NIGMS NIH HHS/ -- R01AI063286/AI/NIAID NIH HHS/ -- R01GM085797/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2010 Oct 22;330(6003):521-5. doi: 10.1126/science.1193787.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Hematology-Oncology, Department of Medicine, 11-934 Factor Building, 10833 Le Conte Avenue, University of California, Los Angeles, Los Angeles, CA 90095, USA. bliu@ucla.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20966256" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Binding Sites ; CD4-Positive T-Lymphocytes/cytology ; Chromatin/metabolism ; DNA (Cytosine-5-)-Methyltransferase/metabolism ; DNA Methylation ; Encephalomyelitis, Autoimmune, Experimental/immunology ; *Epigenesis, Genetic ; Female ; Forkhead Transcription Factors/genetics ; Histones/metabolism ; Lymphopoiesis/*genetics ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Inbred Strains ; Promoter Regions, Genetic ; Protein Inhibitors of Activated STAT/*physiology ; Repressor Proteins/*physiology ; T-Lymphocytes, Regulatory/*cytology/immunology ; Ubiquitin-Protein Ligases/*physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    Convention on Biological Diversity. U.N. biodiversity summit yields welcome and unexpected progress (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-11-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Normile, Dennis -- New York, N.Y. -- Science. 2010 Nov 5;330(6005):742-3. doi: 10.1126/science.330.6005.742.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21051603" target="_blank"〉PubMed〈/a〉
    Keywords: *Biodiversity ; Congresses as Topic ; Conservation of Natural Resources/economics ; Developing Countries ; Humans ; Intellectual Property ; *International Cooperation ; Policy ; Population Groups ; *United Nations
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Life in science. Up a creek in Indonesia (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-08-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beehler, Bruce M -- New York, N.Y. -- Science. 2010 Aug 20;329(5994):901. doi: 10.1126/science.329.5994.901-b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20724618" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Animals, Wild ; *Biodiversity ; Indonesia ; Wit and Humor as Topic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    Identification of RACK1 and protein kinase Calpha as integral components of the mammalian circadian clock (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-01-23
    Description: At the core of the mammalian circadian clock is a negative feedback loop in which the dimeric transcription factor CLOCK-BMAL1 drives processes that in turn suppress its transcriptional activity. To gain insight into the mechanisms of circadian feedback, we analyzed mouse protein complexes containing BMAL1. Receptor for activated C kinase-1 (RACK1) and protein kinase C-alpha (PKCalpha) were recruited in a circadian manner into a nuclear BMAL1 complex during the negative feedback phase of the cycle. Overexpression of RACK1 and PKCalpha suppressed CLOCK-BMAL1 transcriptional activity, and RACK1 stimulated phosphorylation of BMAL1 by PKCalpha in vitro. Depletion of endogenous RACK1 or PKCalpha from fibroblasts shortened the circadian period, demonstrating that both molecules function in the clock oscillatory mechanism. Thus, the classical PKC signaling pathway is not limited to relaying external stimuli but is rhythmically activated by internal processes, forming an integral part of the circadian feedback loop.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Robles, Maria S -- Boyault, Cyril -- Knutti, Darko -- Padmanabhan, Kiran -- Weitz, Charles J -- New York, N.Y. -- Science. 2010 Jan 22;327(5964):463-6. doi: 10.1126/science.1180067.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20093473" target="_blank"〉PubMed〈/a〉
    Keywords: ARNTL Transcription Factors/metabolism ; Animals ; CLOCK Proteins/metabolism ; Cell Nucleus/metabolism ; Circadian Rhythm/*physiology ; Feedback, Physiological ; Fibroblasts/metabolism/physiology ; Mice ; Mice, Inbred C57BL ; Neuropeptides/genetics/*metabolism ; Phosphorylation ; Protein Binding ; Protein Kinase C-alpha/*metabolism ; RNA Interference ; Signal Transduction ; Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Barometer of life: national red lists (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-07-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gardenfors, Ulf -- New York, N.Y. -- Science. 2010 Jul 9;329(5988):140; author reply 141-2. doi: 10.1126/science.329.5988.140-b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20616247" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; *Classification ; *Conservation of Natural Resources ; *Endangered Species ; Plants/*classification
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    Glucose and weight control in mice with a designed ghrelin O-acyltransferase inhibitor (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-11-26
    Description: Ghrelin is a gastric peptide hormone that stimulates weight gain in vertebrates. The biological activities of ghrelin require octanoylation of the peptide on Ser(3), an unusual posttranslational modification that is catalyzed by the enzyme ghrelin O-acyltransferase (GOAT). Here, we describe the design, synthesis, and characterization of GO-CoA-Tat, a peptide-based bisubstrate analog that antagonizes GOAT. GO-CoA-Tat potently inhibits GOAT in vitro, in cultured cells, and in mice. Intraperitoneal administration of GO-CoA-Tat improves glucose tolerance and reduces weight gain in wild-type mice but not in ghrelin-deficient mice, supporting the concept that its beneficial metabolic effects are due specifically to GOAT inhibition. In addition to serving as a research tool for mapping ghrelin actions, GO-CoA-Tat may help pave the way for clinical targeting of GOAT in metabolic diseases.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3068526/" 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/PMC3068526/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barnett, Brad P -- Hwang, Yousang -- Taylor, Martin S -- Kirchner, Henriette -- Pfluger, Paul T -- Bernard, Vincent -- Lin, Yu-yi -- Bowers, Erin M -- Mukherjee, Chandrani -- Song, Woo-Jin -- Longo, Patti A -- Leahy, Daniel J -- Hussain, Mehboob A -- Tschop, Matthias H -- Boeke, Jef D -- Cole, Philip A -- P01 CA016519/CA/NCI NIH HHS/ -- P01 CA016519-35/CA/NCI NIH HHS/ -- P30 DK079637/DK/NIDDK NIH HHS/ -- P60 DK079637/DK/NIDDK NIH HHS/ -- P60 DK079637-05/DK/NIDDK NIH HHS/ -- R01 DK081472/DK/NIDDK NIH HHS/ -- R01 DK081472-01A1/DK/NIDDK NIH HHS/ -- R01 DK081472-02/DK/NIDDK NIH HHS/ -- R01 DK081472-03/DK/NIDDK NIH HHS/ -- R01 GM062437/GM/NIGMS NIH HHS/ -- R01 GM062437-04/GM/NIGMS NIH HHS/ -- R01 GM062437-11/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2010 Dec 17;330(6011):1689-92. doi: 10.1126/science.1196154. Epub 2010 Nov 18.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21097901" target="_blank"〉PubMed〈/a〉
    Keywords: Acylation ; Acyltransferases/*antagonists & inhibitors ; Animals ; Cell Survival/drug effects ; Drug Design ; Enzyme Inhibitors/chemical synthesis/*pharmacology/toxicity ; Ghrelin/deficiency/genetics/*metabolism ; Glucose/*metabolism ; Glucose Tolerance Test ; HeLa Cells ; Homeostasis ; Humans ; Insulin/metabolism ; Ion Channels/metabolism ; Islets of Langerhans/drug effects/metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Mitochondrial Proteins/metabolism ; Peptides/chemical synthesis/*pharmacology/toxicity ; Weight Gain/*drug effects
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    Darwinian evolution of prions in cell culture (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-01-02
    Description: Prions are infectious proteins consisting mainly of PrP(Sc), a beta sheet-rich conformer of the normal host protein PrP(C), and occur in different strains. Strain identity is thought to be encoded by PrP(Sc) conformation. We found that biologically cloned prion populations gradually became heterogeneous by accumulating "mutants," and selective pressures resulted in the emergence of different mutants as major constituents of the evolving population. Thus, when transferred from brain to cultured cells, "cell-adapted" prions outcompeted their "brain-adapted" counterparts, and the opposite occurred when prions were returned from cells to brain. Similarly, the inhibitor swainsonine selected for a resistant substrain, whereas, in its absence, the susceptible substrain outgrew its resistant counterpart. Prions, albeit devoid of a nucleic acid genome, are thus subject to mutation and selective amplification.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2848070/" 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/PMC2848070/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Jiali -- Browning, Shawn -- Mahal, Sukhvir P -- Oelschlegel, Anja M -- Weissmann, Charles -- NS059543/NS/NINDS NIH HHS/ -- R01 NS059543/NS/NINDS NIH HHS/ -- R01 NS059543-01/NS/NINDS NIH HHS/ -- R01 NS059543-02/NS/NINDS NIH HHS/ -- R01 NS067214/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2010 Feb 12;327(5967):869-72. doi: 10.1126/science.1183218. Epub 2009 Dec 31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Infectology, Scripps Florida, 130 Scripps Way, Jupiter, FL 33458, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20044542" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Brain Chemistry ; Cell Line ; Cell Line, Tumor ; Culture Media ; Culture Media, Conditioned ; *Evolution, Molecular ; Mice ; Mice, Inbred C57BL ; Mutation ; *PrPSc Proteins/chemistry/classification/pathogenicity ; Prion Diseases ; Prions/chemistry/classification/*pathogenicity/*physiology ; Protein Conformation ; Swainsonine/pharmacology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
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    Activation of beta-catenin in dendritic cells regulates immunity versus tolerance in the intestine (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-08-14
    Description: Dendritic cells (DCs) play a vital role in initiating robust immunity against pathogens as well as maintaining immunological tolerance to self antigens. However, the intracellular signaling networks that program DCs to become tolerogenic remain unknown. We report here that the Wnt-beta-catenin signaling in intestinal dendritic cells regulates the balance between inflammatory versus regulatory responses in the gut. beta-catenin in intestinal dendritic cells was required for the expression of anti-inflammatory mediators such as retinoic acid-metabolizing enzymes, interleukin-10, and transforming growth factor-beta, and the stimulation of regulatory T cell induction while suppressing inflammatory effector T cells. Furthermore, ablation of beta-catenin expression in DCs enhanced inflammatory responses and disease in a mouse model of inflammatory bowel disease. Thus, beta-catenin signaling programs DCs to a tolerogenic state, limiting the inflammatory response.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3732486/" 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/PMC3732486/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Manicassamy, Santhakumar -- Reizis, Boris -- Ravindran, Rajesh -- Nakaya, Helder -- Salazar-Gonzalez, Rosa Maria -- Wang, Yi-Chong -- Pulendran, Bali -- HHSN266 200700006C/PHS HHS/ -- N01 AI50019/AI/NIAID NIH HHS/ -- N01 AI50025/AI/NIAID NIH HHS/ -- R01 AI048638/AI/NIAID NIH HHS/ -- R01 AI056499/AI/NIAID NIH HHS/ -- R01 DK057665/DK/NIDDK NIH HHS/ -- R01DK057665,/DK/NIDDK NIH HHS/ -- R37 AI048638/AI/NIAID NIH HHS/ -- R37 DK057665/DK/NIDDK NIH HHS/ -- R37AI48638,/AI/NIAID NIH HHS/ -- U19 AI057266/AI/NIAID NIH HHS/ -- U19AI057266,/AI/NIAID NIH HHS/ -- U54 AI057157/AI/NIAID NIH HHS/ -- U54AI057157/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2010 Aug 13;329(5993):849-53. doi: 10.1126/science.1188510.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Emory Vaccine Center, and Yerkes National Primate Research Center, 954 Gatewood Road, Atlanta, GA 30329, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20705860" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cytokines/metabolism ; Dendritic Cells/*immunology/metabolism ; Gene Expression Profiling ; *Inflammation ; Inflammatory Bowel Diseases/*immunology ; Intestinal Mucosa/cytology/*immunology/metabolism ; Macrophages/immunology/metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Oligonucleotide Array Sequence Analysis ; *Self Tolerance ; Signal Transduction ; T-Lymphocytes, Helper-Inducer/cytology/*immunology ; T-Lymphocytes, Regulatory/*immunology ; Tretinoin/metabolism ; Wnt Proteins/metabolism ; beta Catenin/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
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    Food security: GM crops threaten biodiversity (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-04-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tirado, Reyes -- Johnston, Paul -- New York, N.Y. -- Science. 2010 Apr 9;328(5975):170-1. doi: 10.1126/science.328.5975.170-a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20378798" target="_blank"〉PubMed〈/a〉
    Keywords: Agriculture/methods ; *Biodiversity ; Crops, Agricultural/*genetics ; Food Supply ; *Plants, Genetically Modified
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 11
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    Cyclooxygenase-2 controls energy homeostasis in mice by de novo recruitment of brown adipocytes (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-05-08
    Description: Obesity results from chronic energy surplus and excess lipid storage in white adipose tissue (WAT). In contrast, brown adipose tissue (BAT) efficiently burns lipids through adaptive thermogenesis. Studying mouse models, we show that cyclooxygenase (COX)-2, a rate-limiting enzyme in prostaglandin (PG) synthesis, is a downstream effector of beta-adrenergic signaling in WAT and is required for the induction of BAT in WAT depots. PG shifted the differentiation of defined mesenchymal progenitors toward a brown adipocyte phenotype. Overexpression of COX-2 in WAT induced de novo BAT recruitment in WAT, increased systemic energy expenditure, and protected mice against high-fat diet-induced obesity. Thus, COX-2 appears integral to de novo BAT recruitment, which suggests that the PG pathway regulates systemic energy homeostasis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vegiopoulos, Alexandros -- Muller-Decker, Karin -- Strzoda, Daniela -- Schmitt, Iris -- Chichelnitskiy, Evgeny -- Ostertag, Anke -- Berriel Diaz, Mauricio -- Rozman, Jan -- Hrabe de Angelis, Martin -- Nusing, Rolf M -- Meyer, Carola W -- Wahli, Walter -- Klingenspor, Martin -- Herzig, Stephan -- New York, N.Y. -- Science. 2010 May 28;328(5982):1158-61. doi: 10.1126/science.1186034. Epub 2010 May 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Emmy Noether and Marie Curie Research Group Molecular Metabolic Control, German Cancer Research Center (DKFZ) Heidelberg, 69120 Heidelberg, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20448152" target="_blank"〉PubMed〈/a〉
    Keywords: Adipocytes, Brown/cytology/*physiology ; Adipogenesis ; Adipose Tissue ; Adipose Tissue, Brown/cytology/*physiology ; Adipose Tissue, White/enzymology/*physiology ; Adrenergic beta-3 Receptor Agonists ; Adrenergic beta-Agonists/pharmacology ; Animals ; Body Weight ; Cyclooxygenase 2/*genetics/*metabolism ; Dietary Fats/administration & dosage ; Dioxoles/pharmacology ; *Energy Metabolism ; Female ; Gene Expression Regulation, Enzymologic ; Homeostasis ; Male ; Mesenchymal Stromal Cells/cytology ; Mice ; Mice, Inbred C57BL ; Mice, Obese ; Mice, Transgenic ; Norepinephrine/metabolism ; Obesity/etiology/prevention & control ; Oxygen Consumption ; Prostaglandins/*metabolism ; Receptors, Adrenergic, beta-3/metabolism ; Signal Transduction ; *Thermogenesis
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    G protein subunit Galpha13 binds to integrin alphaIIbbeta3 and mediates integrin "outside-in" signaling (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-01-16
    Description: Integrins mediate cell adhesion to the extracellular matrix and transmit signals within the cell that stimulate cell spreading, retraction, migration, and proliferation. The mechanism of integrin outside-in signaling has been unclear. We found that the heterotrimeric guanine nucleotide-binding protein (G protein) Galpha13 directly bound to the integrin beta3 cytoplasmic domain and that Galpha13-integrin interaction was promoted by ligand binding to the integrin alphaIIbbeta3 and by guanosine triphosphate (GTP) loading of Galpha13. Interference of Galpha13 expression or a myristoylated fragment of Galpha13 that inhibited interaction of alphaIIbbeta3 with Galpha13 diminished activation of protein kinase c-Src and stimulated the small guanosine triphosphatase RhoA, consequently inhibiting cell spreading and accelerating cell retraction. We conclude that integrins are noncanonical Galpha13-coupled receptors that provide a mechanism for dynamic regulation of RhoA.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2842917/" 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/PMC2842917/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gong, Haixia -- Shen, Bo -- Flevaris, Panagiotis -- Chow, Christina -- Lam, Stephen C-T -- Voyno-Yasenetskaya, Tatyana A -- Kozasa, Tohru -- Du, Xiaoping -- GM061454/GM/NIGMS NIH HHS/ -- GM074001/GM/NIGMS NIH HHS/ -- HL062350/HL/NHLBI NIH HHS/ -- HL068819/HL/NHLBI NIH HHS/ -- HL080264/HL/NHLBI NIH HHS/ -- R01 GM061454/GM/NIGMS NIH HHS/ -- R01 GM061454-09/GM/NIGMS NIH HHS/ -- R01 GM074001/GM/NIGMS NIH HHS/ -- R01 GM074001-02/GM/NIGMS NIH HHS/ -- R01 HL062350/HL/NHLBI NIH HHS/ -- R01 HL062350-09/HL/NHLBI NIH HHS/ -- R01 HL068819/HL/NHLBI NIH HHS/ -- R01 HL068819-08/HL/NHLBI NIH HHS/ -- R01 HL080264/HL/NHLBI NIH HHS/ -- R01 HL080264-04/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2010 Jan 15;327(5963):340-3. doi: 10.1126/science.1174779.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, University of Illinois at Chicago, 835 South Wolcott Avenue, Room E403, Chicago, IL 60612, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20075254" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Binding Sites ; Blood Platelets/*physiology ; Clot Retraction ; Fibrinogen/metabolism ; GTP-Binding Protein alpha Subunits, G12-G13/genetics/*metabolism ; Humans ; Integrin beta3/*metabolism ; Ligands ; Mice ; Mice, Inbred C57BL ; Phosphorylation ; Platelet Adhesiveness ; Platelet Glycoprotein GPIIb-IIIa Complex/*metabolism ; Protein Binding ; Protein Structure, Tertiary ; Proto-Oncogene Proteins pp60(c-src)/metabolism ; RNA, Small Interfering ; Recombinant Fusion Proteins/metabolism ; *Signal Transduction ; rhoA GTP-Binding Protein/antagonists & inhibitors/metabolism
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    A recount of tropical tree species (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-10-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ghazoul, Jaboury -- New York, N.Y. -- Science. 2010 Sep 24;329(5999):1598. doi: 10.1126/science.329.5999.1598-b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20929828" target="_blank"〉PubMed〈/a〉
    Keywords: *Biodiversity ; New Guinea ; Trees/*classification ; Tropical Climate
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    Paleontology. Marine biodiversity dynamics over deep time (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-09-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, Charles R -- New York, N.Y. -- Science. 2010 Sep 3;329(5996):1156-7. doi: 10.1126/science.1194924.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Integrative Biology, University of California Museum of Paleontology, University of California, Berkeley, Berkeley, CA 94720, USA. crmarshall@berkeley.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20813942" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; Data Interpretation, Statistical ; *Databases, Factual ; *Ecosystem ; Extinction, Biological ; *Fossils ; Geography ; *Invertebrates ; Marine Biology ; Oceans and Seas ; *Paleontology ; Population Dynamics ; Time
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    Mcl-1 is essential for germinal center formation and B cell memory (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-10-12
    Description: Lymphocyte survival during immune responses is controlled by the relative expression of pro- and anti-apoptotic molecules, regulating the magnitude, quality, and duration of the response. We investigated the consequences of deleting genes encoding the anti-apoptotic molecules Mcl1 and Bcl2l1 (Bcl-x(L)) from B cells using an inducible system synchronized with expression of activation-induced cytidine deaminase (Aicda) after immunization. This revealed Mcl1 and not Bcl2l1 to be indispensable for the formation and persistence of germinal centers (GCs). Limiting Mcl1 expression reduced the magnitude of the GC response with an equivalent, but not greater, effect on memory B cell formation and no effect on persistence. Our results identify Mcl1 as the main anti-apoptotic regulator of activated B cell survival and suggest distinct mechanisms controlling survival of GC and memory B cells.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2991396/" 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/PMC2991396/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vikstrom, Ingela -- Carotta, Sebastian -- Luthje, Katja -- Peperzak, Victor -- Jost, Philipp J -- Glaser, Stefan -- Busslinger, Meinrad -- Bouillet, Philippe -- Strasser, Andreas -- Nutt, Stephen L -- Tarlinton, David M -- CA43540/CA/NCI NIH HHS/ -- CA80188/CA/NCI NIH HHS/ -- R01 CA043540/CA/NCI NIH HHS/ -- R01 CA043540-22/CA/NCI NIH HHS/ -- R01 CA080188-08/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2010 Nov 19;330(6007):1095-9. doi: 10.1126/science.1191793. Epub 2010 Oct 7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, Victoria 3052, Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20929728" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibody Affinity ; B-Lymphocytes/*immunology ; Cell Survival ; Gene Deletion ; Germinal Center/cytology/*immunology ; *Immunologic Memory ; Mice ; Mice, Inbred C57BL ; Molecular Sequence Data ; Myeloid Cell Leukemia Sequence 1 Protein ; Proto-Oncogene Proteins c-bcl-2/genetics/*immunology ; bcl-X Protein/genetics/immunology
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    Ecology. Madagascar's forests get a reprieve--but for how long? (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-04-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bohannon, John -- New York, N.Y. -- Science. 2010 Apr 2;328(5974):23-5. doi: 10.1126/science.328.5974.23.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20360072" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; Commerce/legislation & jurisprudence ; *Conservation of Natural Resources/legislation & jurisprudence ; *Ecosystem ; Endangered Species ; Madagascar ; *Trees ; Wood
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    Prdm9 controls activation of mammalian recombination hotspots (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-01-02
    Description: Mammalian meiotic recombination, which preferentially occurs at specialized sites called hotspots, ensures the orderly segregation of meiotic chromosomes and creates genetic variation among offspring. A locus on mouse chromosome 17, which controls activation of recombination at multiple distant hotspots, has been mapped within a 181-kilobase interval, three of whose genes can be eliminated as candidates. The remaining gene, Prdm9, codes for a zinc finger containing histone H3K4 trimethylase that is expressed in early meiosis and whose deficiency results in sterility in both sexes. Mus musculus exhibits five alleles of Prdm9; human populations exhibit two predominant alleles and multiple minor alleles. The identification of Prdm9 as a protein regulating mammalian recombination hotspots initiates molecular studies of this important biological control system.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2821451/" 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/PMC2821451/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Parvanov, Emil D -- Petkov, Petko M -- Paigen, Kenneth -- 076468/PHS HHS/ -- 078452/PHS HHS/ -- 083408/PHS HHS/ -- CA 34196/CA/NCI NIH HHS/ -- GM 078643/GM/NIGMS NIH HHS/ -- P30 CA034196-26/CA/NCI NIH HHS/ -- P50 GM076468/GM/NIGMS NIH HHS/ -- P50 GM076468-030004/GM/NIGMS NIH HHS/ -- R01 GM078452/GM/NIGMS NIH HHS/ -- R01 GM078452-02/GM/NIGMS NIH HHS/ -- R01 GM078643/GM/NIGMS NIH HHS/ -- R01 GM078643-03/GM/NIGMS NIH HHS/ -- R01 GM083408/GM/NIGMS NIH HHS/ -- R01 GM083408-02/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2010 Feb 12;327(5967):835. doi: 10.1126/science.1181495. Epub 2009 Dec 31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Jackson Laboratory, Bar Harbor, ME 04609, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20044538" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Amino Acid Sequence ; Animals ; Chromosome Mapping ; Female ; Histone-Lysine N-Methyltransferase/chemistry/*genetics/metabolism ; Humans ; Male ; Meiosis/*genetics ; Mice ; Mice, Inbred C57BL ; Molecular Sequence Data ; *Recombination, Genetic ; Sequence Analysis, DNA ; Testis/metabolism ; Zinc Fingers
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    Asymmetric density dependence shapes species abundances in a tropical tree community (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-06-26
    Description: The factors determining species commonness and rarity are poorly understood, particularly in highly diverse communities. Theory predicts that interactions with neighbors of the same (conspecific) and other (heterospecific) species can influence a species' relative abundance, but empirical tests are lacking. By using a hierarchical model of survival for more than 30,000 seedlings of 180 tropical tree species on Barro Colorado Island, Panama, we tested whether species' sensitivity to neighboring individuals relates to their relative abundance in the community. We found wide variation among species in the effect of conspecific, but not heterospecific, neighbors on survival, and we found a significant relationship between the strength of conspecific neighbor effects and species abundance. Specifically, rare species suffered more from the presence of conspecific neighbors than common species did, suggesting that conspecific density dependence shapes species abundances in diverse communities.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Comita, Liza S -- Muller-Landau, Helene C -- Aguilar, Salomon -- Hubbell, Stephen P -- New York, N.Y. -- Science. 2010 Jul 16;329(5989):330-2. doi: 10.1126/science.1190772. Epub 2010 Jun 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Center for Ecological Analysis and Synthesis, 735 State Street, Suite 300, Santa Barbara, CA 93101, USA. comita@nceas.ucsb.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20576853" target="_blank"〉PubMed〈/a〉
    Keywords: Bayes Theorem ; *Biodiversity ; *Ecosystem ; Panama ; Population Density ; Seedlings/growth & development ; Species Specificity ; *Trees/growth & development ; *Tropical Climate
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    Sex-specific parent-of-origin allelic expression in the mouse brain (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-07-10
    Description: Genomic imprinting results in preferential gene expression from paternally versus maternally inherited chromosomes. We used a genome-wide approach to uncover sex-specific parent-of-origin allelic effects in the adult mouse brain. Our study identified preferential selection of the maternally inherited X chromosome in glutamatergic neurons of the female cortex. Moreover, analysis of the cortex and hypothalamus identified 347 autosomal genes with sex-specific imprinting features. In the hypothalamus, sex-specific imprinted genes were mostly found in females, which suggests parental influence over the hypothalamic function of daughters. We show that interleukin-18, a gene linked to diseases with sex-specific prevalence, is subject to complex, regional, and sex-specific parental effects in the brain. Parent-of-origin effects thus provide new avenues for investigation of sexual dimorphism in brain function and disease.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2997643/" 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/PMC2997643/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gregg, Christopher -- Zhang, Jiangwen -- Butler, James E -- Haig, David -- Dulac, Catherine -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2010 Aug 6;329(5992):682-5. doi: 10.1126/science.1190831. Epub 2010 Jul 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cellular Biology, Harvard University, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20616234" target="_blank"〉PubMed〈/a〉
    Keywords: *Alleles ; Animals ; Crosses, Genetic ; Dioxygenases ; *Epigenesis, Genetic ; Female ; Gene Expression Profiling ; *Genes, X-Linked ; *Genomic Imprinting ; Glutamic Acid/metabolism ; Interleukin-18/genetics ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Mitochondrial Proteins/genetics ; Neurons/metabolism ; Oxygenases/genetics ; Polymorphism, Single Nucleotide ; Prefrontal Cortex/cytology/*metabolism ; Preoptic Area/cytology/*metabolism ; Ribosomal Proteins/genetics ; *Sex Characteristics ; Succinate Dehydrogenase/genetics ; X Chromosome Inactivation
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    Eppendorf winner. Parental control over the brain (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-11-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gregg, Christopher -- New York, N.Y. -- Science. 2010 Nov 5;330(6005):770-1. doi: 10.1126/science.1199054.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cellular Biology, Harvard University, Cambridge, MA 02138, USA. cgregg@MCB.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21051625" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Animals ; Awards and Prizes ; *Fathers ; *Gene Expression ; Gene Expression Profiling ; *Genomic Imprinting ; Humans ; Interleukin-18 ; Mice ; Mice, Inbred C57BL ; *Mothers ; Polymorphism, Single Nucleotide ; Prefrontal Cortex/embryology/growth & development/*metabolism ; Preoptic Area/embryology/growth & development/*metabolism ; Sex Characteristics
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    Substrate elasticity regulates skeletal muscle stem cell self-renewal in culture (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-07-22
    Description: Stem cells that naturally reside in adult tissues, such as muscle stem cells (MuSCs), exhibit robust regenerative capacity in vivo that is rapidly lost in culture. Using a bioengineered substrate to recapitulate key biophysical and biochemical niche features in conjunction with a highly automated single-cell tracking algorithm, we show that substrate elasticity is a potent regulator of MuSC fate in culture. Unlike MuSCs on rigid plastic dishes (approximately 10(6) kilopascals), MuSCs cultured on soft hydrogel substrates that mimic the elasticity of muscle (12 kilopascals) self-renew in vitro and contribute extensively to muscle regeneration when subsequently transplanted into mice and assayed histologically and quantitatively by noninvasive bioluminescence imaging. Our studies provide novel evidence that by recapitulating physiological tissue rigidity, propagation of adult muscle stem cells is possible, enabling future cell-based therapies for muscle-wasting diseases.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2929271/" 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/PMC2929271/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gilbert, P M -- Havenstrite, K L -- Magnusson, K E G -- Sacco, A -- Leonardi, N A -- Kraft, P -- Nguyen, N K -- Thrun, S -- Lutolf, M P -- Blau, H M -- 2 T32 HD007249/HD/NICHD NIH HHS/ -- 52005886/Howard Hughes Medical Institute/ -- AG009521/AG/NIA NIH HHS/ -- AG020961/AG/NIA NIH HHS/ -- CA09151/CA/NCI NIH HHS/ -- HL096113/HL/NHLBI NIH HHS/ -- R01 AG009521/AG/NIA NIH HHS/ -- R01 AG009521-25/AG/NIA NIH HHS/ -- R01 AG020961/AG/NIA NIH HHS/ -- R01 AG020961-06A2/AG/NIA NIH HHS/ -- R01 AG020961-07/AG/NIA NIH HHS/ -- R01 HL096113/HL/NHLBI NIH HHS/ -- R01 HL096113-03/HL/NHLBI NIH HHS/ -- T32 CA009151/CA/NCI NIH HHS/ -- T32 CA009151-35/CA/NCI NIH HHS/ -- T32 HD007249/HD/NICHD NIH HHS/ -- T32 HD007249-25/HD/NICHD NIH HHS/ -- U01 HL100397/HL/NHLBI NIH HHS/ -- U01 HL100397-01/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2010 Aug 27;329(5995):1078-81. doi: 10.1126/science.1191035. Epub 2010 Jul 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Baxter Laboratory for Stem Cell Biology, Department of Microbiology and Immunology, Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20647425" target="_blank"〉PubMed〈/a〉
    Keywords: Algorithms ; Animals ; Cell Count ; Cell Culture Techniques/*methods ; Cell Death ; Cell Differentiation ; Cell Division ; Cell Lineage ; Cell Separation ; Cell Survival ; Cells, Cultured ; Elastic Modulus ; Hydrogels ; Mice ; Mice, Inbred C57BL ; Mice, Inbred NOD ; Mice, SCID ; Mice, Transgenic ; Muscle Fibers, Skeletal/*cytology/physiology ; Muscle, Skeletal/*cytology ; Polyethylene Glycols ; Regeneration ; Satellite Cells, Skeletal Muscle/cytology ; Stem Cell Niche/*physiology ; Stem Cell Transplantation ; Stem Cells/cytology/*physiology
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    Loss of Rap1 induces telomere recombination in the absence of NHEJ or a DNA damage signal (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-03-27
    Description: Shelterin is an essential telomeric protein complex that prevents DNA damage signaling and DNA repair at mammalian chromosome ends. Here we report on the role of the TRF2-interacting factor Rap1, a conserved shelterin subunit of unknown function. We removed Rap1 from mouse telomeres either through gene deletion or by replacing TRF2 with a mutant that does not bind Rap1. Rap1 was dispensable for the essential functions of TRF2--repression of ATM kinase signaling and nonhomologous end joining (NHEJ)--and mice lacking telomeric Rap1 were viable and fertile. However, Rap1 was critical for the repression of homology-directed repair (HDR), which can alter telomere length. The data reveal that HDR at telomeres can take place in the absence of DNA damage foci and underscore the functional compartmentalization within shelterin.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2864730/" 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/PMC2864730/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sfeir, Agnel -- Kabir, Shaheen -- van Overbeek, Megan -- Celli, Giulia B -- de Lange, Titia -- AG016642/AG/NIA NIH HHS/ -- GM049046/GM/NIGMS NIH HHS/ -- R01 AG016642/AG/NIA NIH HHS/ -- R01 AG016642-01/AG/NIA NIH HHS/ -- R01 AG016642-02/AG/NIA NIH HHS/ -- R01 AG016642-03/AG/NIA NIH HHS/ -- R01 AG016642-04/AG/NIA NIH HHS/ -- R01 AG016642-05/AG/NIA NIH HHS/ -- R01 AG016642-06/AG/NIA NIH HHS/ -- R01 AG016642-07/AG/NIA NIH HHS/ -- R01 AG016642-08/AG/NIA NIH HHS/ -- R01 AG016642-09/AG/NIA NIH HHS/ -- R01 AG016642-10/AG/NIA NIH HHS/ -- R01 AG016642-11/AG/NIA NIH HHS/ -- R01 GM049046/GM/NIGMS NIH HHS/ -- R01 GM049046-07/GM/NIGMS NIH HHS/ -- R01 GM049046-08/GM/NIGMS NIH HHS/ -- R01 GM049046-09/GM/NIGMS NIH HHS/ -- R01 GM049046-10/GM/NIGMS NIH HHS/ -- R01 GM049046-11/GM/NIGMS NIH HHS/ -- R01 GM049046-12/GM/NIGMS NIH HHS/ -- R37 GM049046/GM/NIGMS NIH HHS/ -- R37 GM049046-13/GM/NIGMS NIH HHS/ -- R37 GM049046-14/GM/NIGMS NIH HHS/ -- R37 GM049046-15/GM/NIGMS NIH HHS/ -- R37 GM049046-16/GM/NIGMS NIH HHS/ -- R37 GM049046-17/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2010 Mar 26;327(5973):1657-61. doi: 10.1126/science.1185100.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Rockefeller University, 1230 York Avenue, New York, NY 10065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20339076" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Ataxia Telangiectasia Mutated Proteins ; Cell Cycle Proteins/metabolism ; Cell Proliferation ; Cells, Cultured ; Checkpoint Kinase 2 ; *DNA Damage ; *DNA Repair ; DNA-Binding Proteins/metabolism ; Gene Deletion ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Molecular Sequence Data ; Protein-Serine-Threonine Kinases/metabolism ; Recombination, Genetic ; Signal Transduction ; Sister Chromatid Exchange ; Telomere/*genetics/metabolism ; Telomere-Binding Proteins/chemistry/*genetics/*metabolism ; Telomeric Repeat Binding Protein 2/genetics/metabolism ; Tumor Suppressor Proteins/metabolism
    Print ISSN: 0036-8075
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    Sfrp5 is an anti-inflammatory adipokine that modulates metabolic dysfunction in obesity (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-06-19
    Description: Adipose tissue secretes proteins referred to as adipokines, many of which promote inflammation and disrupt glucose homeostasis. Here we show that secreted frizzled-related protein 5 (Sfrp5), a protein previously linked to the Wnt signaling pathway, is an anti-inflammatory adipokine whose expression is perturbed in models of obesity and type 2 diabetes. Sfrp5-deficient mice fed a high-calorie diet developed severe glucose intolerance and hepatic steatosis, and their adipose tissue showed an accumulation of activated macrophages that was associated with activation of the c-Jun N-terminal kinase signaling pathway. Adenovirus-mediated delivery of Sfrp5 to mouse models of obesity ameliorated glucose intolerance and hepatic steatosis. Thus, in the setting of obesity, Sfrp5 secretion by adipocytes exerts salutary effects on metabolic dysfunction by controlling inflammatory cells within adipose tissue.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3132938/" 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/PMC3132938/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ouchi, Noriyuki -- Higuchi, Akiko -- Ohashi, Koji -- Oshima, Yuichi -- Gokce, Noyan -- Shibata, Rei -- Akasaki, Yuichi -- Shimono, Akihiko -- Walsh, Kenneth -- AG15052/AG/NIA NIH HHS/ -- AG34972/AG/NIA NIH HHS/ -- HL81587/HL/NHLBI NIH HHS/ -- HL86785/HL/NHLBI NIH HHS/ -- P01 HL081587/HL/NHLBI NIH HHS/ -- P01 HL081587-05/HL/NHLBI NIH HHS/ -- R01 AG015052/AG/NIA NIH HHS/ -- R01 AG015052-06/AG/NIA NIH HHS/ -- R01 AG034972/AG/NIA NIH HHS/ -- R01 AG034972-03/AG/NIA NIH HHS/ -- R01 HL086785/HL/NHLBI NIH HHS/ -- R01 HL086785-19/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2010 Jul 23;329(5990):454-7. doi: 10.1126/science.1188280. Epub 2010 Jun 17.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Cardiology and Whitaker Cardiovascular Institute, Boston University School of Medicine, 715 Albany Street, W611, Boston, MA 02118, USA. nouchi@bu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20558665" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3-L1 Cells ; Adipocytes/*metabolism/pathology ; Adipokines/genetics/*metabolism ; Adipose Tissue/*metabolism/pathology ; Animals ; Dietary Fats/administration & dosage ; Dietary Sucrose/administration & dosage ; Fatty Liver/pathology/therapy ; Genetic Vectors ; Glucose/metabolism ; Humans ; Inflammation ; Insulin/metabolism ; Insulin Resistance ; Intercellular Signaling Peptides and Proteins/genetics/*metabolism ; Macrophages/*metabolism ; Mice ; Mice, Inbred C57BL ; Mice, Obese ; Mitogen-Activated Protein Kinase 8/genetics/metabolism ; Obesity/*metabolism/pathology ; Phosphorylation ; Rats ; Rats, Zucker ; Signal Transduction ; Wnt Proteins/metabolism
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    Ecology. Tropical arthropod species, more or less? (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-07-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉May, Robert M -- New York, N.Y. -- Science. 2010 Jul 2;329(5987):41-2. doi: 10.1126/science.1191058.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Zoology Department, University of Oxford, Oxford OX1 3PS, UK. robert.may@zoo.ox.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20595603" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arthropods/*classification ; Beetles/classification ; *Biodiversity ; Classification/methods ; Genetic Speciation ; Models, Statistical ; New Guinea ; Probability ; Trees/classification ; *Tropical Climate ; Uncertainty
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    Mass fruiting in Borneo: a missed opportunity (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-10-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kettle, Chris J -- Ghazoul, Jaboury -- Ashton, Peter S -- Cannon, Charles H -- Chong, Lucy -- Diway, Bibia -- Faridah, Eny -- Harrison, Rhett -- Hector, Andrew -- Hollingsworth, Pete -- Koh, Lian Pin -- Khoo, Eyen -- Kitayama, Kanehiro -- Kartawinata, Kuswata -- Marshall, Andrew J -- Maycock, Colin R -- Nanami, Satoshi -- Paoli, Gary -- Potts, Matthew D -- Sheil, Douglas -- Tan, Sylvester -- Tomoaki, Ichie -- Webb, Campbell -- Yamakura, Takuo -- Burslem, David F R P -- New York, N.Y. -- Science. 2010 Oct 29;330(6004):584. doi: 10.1126/science.330.6004.584-a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21030629" target="_blank"〉PubMed〈/a〉
    Keywords: *Biodiversity ; Borneo ; *Conservation of Natural Resources/economics ; Endangered Species ; Financial Support ; *Seeds ; *Trees
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    Essential role of the histone methyltransferase G9a in cocaine-induced plasticity (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-01-09
    Description: Cocaine-induced alterations in gene expression cause changes in neuronal morphology and behavior that may underlie cocaine addiction. In mice, we identified an essential role for histone 3 lysine 9 (H3K9) dimethylation and the lysine dimethyltransferase G9a in cocaine-induced structural and behavioral plasticity. Repeated cocaine administration reduced global levels of H3K9 dimethylation in the nucleus accumbens. This reduction in histone methylation was mediated through the repression of G9a in this brain region, which was regulated by the cocaine-induced transcription factor DeltaFosB. Using conditional mutagenesis and viral-mediated gene transfer, we found that G9a down-regulation increased the dendritic spine plasticity of nucleus accumbens neurons and enhanced the preference for cocaine, thereby establishing a crucial role for histone methylation in the long-term actions of cocaine.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2820240/" 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/PMC2820240/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maze, Ian -- Covington, Herbert E 3rd -- Dietz, David M -- LaPlant, Quincey -- Renthal, William -- Russo, Scott J -- Mechanic, Max -- Mouzon, Ezekiell -- Neve, Rachael L -- Haggarty, Stephen J -- Ren, Yanhua -- Sampath, Srihari C -- Hurd, Yasmin L -- Greengard, Paul -- Tarakhovsky, Alexander -- Schaefer, Anne -- Nestler, Eric J -- P01 DA008227/DA/NIDA NIH HHS/ -- P01 DA008227-120001/DA/NIDA NIH HHS/ -- P01 DA008227-129001/DA/NIDA NIH HHS/ -- P01 DA008227-13/DA/NIDA NIH HHS/ -- P01 DA008227-14/DA/NIDA NIH HHS/ -- P01 DA008227-15/DA/NIDA NIH HHS/ -- P01 DA008227-16/DA/NIDA NIH HHS/ -- P01 DA008227-170003/DA/NIDA NIH HHS/ -- P01 DA008227-180003/DA/NIDA NIH HHS/ -- P01 DA010044/DA/NIDA NIH HHS/ -- P01 DA010044-14/DA/NIDA NIH HHS/ -- P01 DA010044-140005/DA/NIDA NIH HHS/ -- P01 DA010044-149002/DA/NIDA NIH HHS/ -- P01 DA010044-14S1/DA/NIDA NIH HHS/ -- P01 DA010044-14S10005/DA/NIDA NIH HHS/ -- P01 DA010044-14S19002/DA/NIDA NIH HHS/ -- P01 DA010044-15/DA/NIDA NIH HHS/ -- P01 DA010044-150005/DA/NIDA NIH HHS/ -- P01 DA010044-159002/DA/NIDA NIH HHS/ -- P01 DA08227/DA/NIDA NIH HHS/ -- P0110044/PHS HHS/ -- R01 DA007359/DA/NIDA NIH HHS/ -- R01 DA007359-02/DA/NIDA NIH HHS/ -- R01 DA007359-17/DA/NIDA NIH HHS/ -- R01 DA007359-18/DA/NIDA NIH HHS/ -- R01 DA007359-19/DA/NIDA NIH HHS/ -- R01 DA007359-20/DA/NIDA NIH HHS/ -- R01 DA007359-21/DA/NIDA NIH HHS/ -- R01 DA007359-22/DA/NIDA NIH HHS/ -- R01 DA014133/DA/NIDA NIH HHS/ -- R01 DA07359/DA/NIDA NIH HHS/ -- New York, N.Y. -- Science. 2010 Jan 8;327(5962):213-6. doi: 10.1126/science.1179438.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Fishberg Department of Neuroscience, Mount Sinai School of Medicine, New York, NY, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20056891" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Behavior, Animal/*drug effects ; Cocaine/*administration & dosage/pharmacology ; Cocaine-Related Disorders/etiology/metabolism ; Dendritic Spines/physiology ; Down-Regulation ; Enzyme Repression ; Gene Expression Profiling ; Gene Expression Regulation ; Histone-Lysine N-Methyltransferase/genetics/*metabolism ; Histones/*metabolism ; Lysine/metabolism ; Male ; Methylation ; Mice ; Mice, Inbred C57BL ; *Neuronal Plasticity ; Neurons/drug effects/*metabolism ; Nucleus Accumbens/cytology/drug effects/*metabolism ; Oligonucleotide Array Sequence Analysis ; Proto-Oncogene Proteins c-fos/genetics/metabolism ; Reward ; Self Administration ; Transcription, Genetic
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    Conservation. Filling gaps in global biodiversity estimates (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-10-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2010 Oct 1;330(6000):24. doi: 10.1126/science.330.6000.24.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20929783" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; Birds ; *Conservation of Natural Resources/statistics & numerical data ; *Endangered Species/statistics & numerical data ; *Plants ; Sample Size ; Sampling Studies
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    Reefs as cradles of evolution and sources of biodiversity in the Phanerozoic (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-01-09
    Description: Large-scale biodiversity gradients among environments and habitats are usually attributed to a complex array of ecological and evolutionary factors. We tested the evolutionary component of such gradients by compiling the environments of the geologically oldest occurrences of marine genera and using sampling standardization to assess if originations tended to be clustered in particular environments. Shallow, tropical environments and carbonate substrates all tend to have harbored high origination rates. Diversity within these environments tended to be preferentially generated in reefs, probably because of their habitat complexity. Reefs were also prolific at exporting diversity to other environments, which might be a consequence of low-diversity habitats being more susceptible to invasions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kiessling, Wolfgang -- Simpson, Carl -- Foote, Michael -- New York, N.Y. -- Science. 2010 Jan 8;327(5962):196-8. doi: 10.1126/science.1182241.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Museum fur Naturkunde, Leibniz Institute for Research on Evolution and Biodiversity at the Humboldt University Berlin, 10115 Berlin, Germany. wolfgang.kiessling@mfn-berlin.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20056888" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Anthozoa ; *Biodiversity ; *Biological Evolution ; Calcium Carbonate ; *Ecosystem ; Environment ; Fishes ; *Fossils ; Geography ; *Invertebrates/classification
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    Tending the global garden (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-09-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2010 Sep 10;329(5997):1274-7. doi: 10.1126/science.329.5997.1274.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20829463" target="_blank"〉PubMed〈/a〉
    Keywords: *Biodiversity ; *Conservation of Natural Resources ; Databases, Factual ; Ecosystem ; *Endangered Species ; International Cooperation ; Plant Development ; *Plants/classification ; Seeds ; *Terminology as Topic
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    Newsmaker interview: Ian Poiner. Counting the ocean's creatures, great and small. Interview by Dennis Normile (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-10-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Poiner, Ian -- New York, N.Y. -- Science. 2010 Oct 1;330(6000):25. doi: 10.1126/science.330.6000.25.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20929784" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; Biomass ; *Ecosystem ; Marine Biology ; Oceans and Seas
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    Induction of lymphoidlike stroma and immune escape by tumors that express the chemokine CCL21 (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-03-27
    Description: Tumor manipulation of host immunity is important for tumor survival and invasion. Many cancers secrete CCL21, a chemoattractant for various leukocytes and lymphoid tissue inducer cells, which drive lymphoid neogenesis. CCL21 expression by melanoma tumors in mice was associated with an immunotolerant microenvironment, which included the induction of lymphoid-like reticular stromal networks, an altered cytokine milieu, and the recruitment of regulatory leukocyte populations. In contrast, CCL21-deficient tumors induced antigen-specific immunity. CCL21-mediated immune tolerance was dependent on host rather than tumor expression of the CCL21 receptor, CCR7, and could protect distant, coimplanted CCL21-deficient tumors and even nonsyngeneic allografts from rejection. We suggest that by altering the tumor microenvironment, CCL21-secreting tumors shift the host immune response from immunogenic to tolerogenic, which facilitates tumor progression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shields, Jacqueline D -- Kourtis, Iraklis C -- Tomei, Alice A -- Roberts, Joanna M -- Swartz, Melody A -- New York, N.Y. -- Science. 2010 May 7;328(5979):749-52. doi: 10.1126/science.1185837. Epub 2010 Mar 25.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Bioengineering, Ecole Polytechnique Federale de Lausanne, 1015 Lausanne, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20339029" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigen-Presenting Cells/immunology ; CD8-Positive T-Lymphocytes/immunology ; Cell Line, Tumor ; Chemokine CCL21/*metabolism ; Cytokines/metabolism ; Disease Progression ; Female ; Immune Tolerance ; Lymph Nodes/immunology ; Lymphoid Tissue/*immunology/pathology ; Melanoma, Experimental/*immunology/*pathology ; Mice ; Mice, Inbred C57BL ; Neoplasm Transplantation ; RNA Interference ; Receptors, CCR7/metabolism ; Signal Transduction ; Stromal Cells/*immunology/pathology ; T-Lymphocytes/immunology ; T-Lymphocytes, Regulatory/immunology ; *Tumor Escape
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    A critical role for LTA4H in limiting chronic pulmonary neutrophilic inflammation (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-09-04
    Description: Leukotriene A(4) hydrolase (LTA(4)H) is a proinflammatory enzyme that generates the inflammatory mediator leukotriene B(4) (LTB(4)). LTA(4)H also possesses aminopeptidase activity with unknown substrate and physiological importance; we identified the neutrophil chemoattractant proline-glycine-proline (PGP) as this physiological substrate. PGP is a biomarker for chronic obstructive pulmonary disease (COPD) and is implicated in neutrophil persistence in the lung. In acute neutrophil-driven inflammation, PGP was degraded by LTA(4)H, which facilitated the resolution of inflammation. In contrast, cigarette smoke, a major risk factor for the development of COPD, selectively inhibited LTA(4)H aminopeptidase activity, which led to the accumulation of PGP and neutrophils. These studies imply that therapeutic strategies inhibiting LTA(4)H to prevent LTB(4) generation may not reduce neutrophil recruitment because of elevated levels of PGP.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3072752/" 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/PMC3072752/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Snelgrove, Robert J -- Jackson, Patricia L -- Hardison, Matthew T -- Noerager, Brett D -- Kinloch, Andrew -- Gaggar, Amit -- Shastry, Suresh -- Rowe, Steven M -- Shim, Yun M -- Hussell, Tracy -- Blalock, J Edwin -- 082727/Z/07/Z/Wellcome Trust/United Kingdom -- 1K23DK075788/DK/NIDDK NIH HHS/ -- 1R03DK084110-01/DK/NIDDK NIH HHS/ -- G0400795/Medical Research Council/United Kingdom -- G0802752/Medical Research Council/United Kingdom -- HL07783/HL/NHLBI NIH HHS/ -- HL087824/HL/NHLBI NIH HHS/ -- HL090999/HL/NHLBI NIH HHS/ -- HL102371-A1/HL/NHLBI NIH HHS/ -- K08HL091127/HL/NHLBI NIH HHS/ -- P171/03/C1/048/Medical Research Council/United Kingdom -- P30 DK079337/DK/NIDDK NIH HHS/ -- P30AR050948/AR/NIAMS NIH HHS/ -- P30CA13148/CA/NCI NIH HHS/ -- P50 AT00477/AT/NCCIH NIH HHS/ -- R01 HL077783/HL/NHLBI NIH HHS/ -- R01 HL077783-05/HL/NHLBI NIH HHS/ -- R01 HL087824/HL/NHLBI NIH HHS/ -- R01 HL087824-02/HL/NHLBI NIH HHS/ -- R01 HL090999/HL/NHLBI NIH HHS/ -- R01 HL090999-02S1/HL/NHLBI NIH HHS/ -- R01 HL090999-04/HL/NHLBI NIH HHS/ -- R01 HL102371/HL/NHLBI NIH HHS/ -- RR19231/RR/NCRR NIH HHS/ -- U54CA100949/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2010 Oct 1;330(6000):90-4. doi: 10.1126/science.1190594. Epub 2010 Sep 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham Lung Health Center, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA. rjs198@imperial.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20813919" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylation ; Animals ; Bronchoalveolar Lavage Fluid/chemistry ; Cells, Cultured ; Chemokines, CXC/metabolism ; Chemotaxis, Leukocyte ; Epoxide Hydrolases/antagonists & inhibitors/isolation & purification/*metabolism ; Female ; Humans ; Inflammation ; Leukotriene B4/metabolism ; Lung/*immunology/metabolism/pathology ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Neutrophils/enzymology/immunology/*physiology ; Oligopeptides/*metabolism ; Orthomyxoviridae Infections/immunology/metabolism/pathology ; Pneumococcal Infections/immunology/metabolism/pathology ; Pneumonia/*immunology/metabolism/pathology/therapy ; Proline/*analogs & derivatives/metabolism ; Pulmonary Disease, Chronic Obstructive/immunology/metabolism/pathology ; *Smoke ; Tobacco
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Scenarios for global biodiversity in the 21st century (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-10-28
    Description: Quantitative scenarios are coming of age as a tool for evaluating the impact of future socioeconomic development pathways on biodiversity and ecosystem services. We analyze global terrestrial, freshwater, and marine biodiversity scenarios using a range of measures including extinctions, changes in species abundance, habitat loss, and distribution shifts, as well as comparing model projections to observations. Scenarios consistently indicate that biodiversity will continue to decline over the 21st century. However, the range of projected changes is much broader than most studies suggest, partly because there are major opportunities to intervene through better policies, but also because of large uncertainties in projections.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pereira, Henrique M -- Leadley, Paul W -- Proenca, Vania -- Alkemade, Rob -- Scharlemann, Jorn P W -- Fernandez-Manjarres, Juan F -- Araujo, Miguel B -- Balvanera, Patricia -- Biggs, Reinette -- Cheung, William W L -- Chini, Louise -- Cooper, H David -- Gilman, Eric L -- Guenette, Sylvie -- Hurtt, George C -- Huntington, Henry P -- Mace, Georgina M -- Oberdorff, Thierry -- Revenga, Carmen -- Rodrigues, Patricia -- Scholes, Robert J -- Sumaila, Ussif Rashid -- Walpole, Matt -- New York, N.Y. -- Science. 2010 Dec 10;330(6010):1496-501. doi: 10.1126/science.1196624. Epub 2010 Oct 26.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centro de Biologia Ambiental, Faculdade de Ciencias da Universidade de Lisboa, 1749-016 Lisboa, Portugal. hpereira@fc.ul.pt〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20978282" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aquatic Organisms ; *Biodiversity ; Conservation of Natural Resources ; *Ecosystem ; Extinction, Biological ; Forecasting ; Models, Biological ; Plants ; Policy ; Population Dynamics
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    Conservation. Ecosystem services for 2020 (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-10-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Perrings, C -- Naeem, S -- Ahrestani, F -- Bunker, D E -- Burkill, P -- Canziani, G -- Elmqvist, T -- Ferrati, R -- Fuhrman, J -- Jaksic, F -- Kawabata, Z -- Kinzig, A -- Mace, G M -- Milano, F -- Mooney, H -- Prieur-Richard, A-H -- Tschirhart, J -- Weisser, W -- New York, N.Y. -- Science. 2010 Oct 15;330(6002):323-4. doi: 10.1126/science.1196431.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Arizona State University, Tempe, AZ 85287, USA. Charles.Perrings@asu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20947748" target="_blank"〉PubMed〈/a〉
    Keywords: *Biodiversity ; *Conservation of Natural Resources/trends ; *Ecosystem ; Environment ; Forecasting ; International Cooperation
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    The Wnt/beta-catenin pathway is required for the development of leukemia stem cells in AML (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-03-27
    Description: Leukemia stem cells (LSCs) are capable of limitless self-renewal and are responsible for the maintenance of leukemia. Because selective eradication of LSCs could offer substantial therapeutic benefit, there is interest in identifying the signaling pathways that control their development. We studied LSCs in mouse models of acute myelogenous leukemia (AML) induced either by coexpression of the Hoxa9 and Meis1a oncogenes or by the fusion oncoprotein MLL-AF9. We show that the Wnt/beta-catenin signaling pathway is required for self-renewal of LSCs that are derived from either hematopoietic stem cells (HSC) or more differentiated granulocyte-macrophage progenitors (GMP). Because the Wnt/beta-catenin pathway is normally active in HSCs but not in GMP, these results suggest that reactivation of beta-catenin signaling is required for the transformation of progenitor cells by certain oncogenes. beta-catenin is not absolutely required for self-renewal of adult HSCs; thus, targeting the Wnt/beta-catenin pathway may represent a new therapeutic opportunity in AML.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3084586/" 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/PMC3084586/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, Yingzi -- Krivtsov, Andrei V -- Sinha, Amit U -- North, Trista E -- Goessling, Wolfram -- Feng, Zhaohui -- Zon, Leonard I -- Armstrong, Scott A -- 5P01CA66996/CA/NCI NIH HHS/ -- 5R01HL048801/HL/NHLBI NIH HHS/ -- P01 CA066996/CA/NCI NIH HHS/ -- P01 CA066996-11A1/CA/NCI NIH HHS/ -- R01 HL048801/HL/NHLBI NIH HHS/ -- R01 HL048801-16/HL/NHLBI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2010 Mar 26;327(5973):1650-3. doi: 10.1126/science.1186624.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Hematology/Oncology, Children's Hospital, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20339075" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Proliferation ; Cell Transformation, Neoplastic ; Genes, Homeobox ; Granulocyte-Macrophage Progenitor Cells/metabolism/pathology ; Hematopoietic Stem Cells/*metabolism/pathology ; Homeodomain Proteins/genetics ; Indomethacin/pharmacology ; Leukemia, Myeloid, Acute/*metabolism/*pathology ; Mice ; Mice, Inbred C57BL ; Neoplasm Proteins/genetics ; Neoplastic Stem Cells/*pathology ; *Signal Transduction ; Transduction, Genetic ; Wnt Proteins/*metabolism ; beta Catenin/*metabolism
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    Cortical plasticity induced by inhibitory neuron transplantation (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-02-27
    Description: Critical periods are times of pronounced brain plasticity. During a critical period in the postnatal development of the visual cortex, the occlusion of one eye triggers a rapid reorganization of neuronal responses, a process known as ocular dominance plasticity. We have shown that the transplantation of inhibitory neurons induces ocular dominance plasticity after the critical period. Transplanted inhibitory neurons receive excitatory synapses, make inhibitory synapses onto host cortical neurons, and promote plasticity when they reach a cellular age equivalent to that of endogenous inhibitory neurons during the normal critical period. These findings suggest that ocular dominance plasticity is regulated by the execution of a maturational program intrinsic to inhibitory neurons. By inducing plasticity, inhibitory neuron transplantation may facilitate brain repair.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3164148/" 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/PMC3164148/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Southwell, Derek G -- Froemke, Robert C -- Alvarez-Buylla, Arturo -- Stryker, Michael P -- Gandhi, Sunil P -- EY016317/EY/NEI NIH HHS/ -- F32 EY016317/EY/NEI NIH HHS/ -- F32 EY016317-03/EY/NEI NIH HHS/ -- P50 MH077972/MH/NIMH NIH HHS/ -- P50 MH077972-05/MH/NIMH NIH HHS/ -- R01 NS048528/NS/NINDS NIH HHS/ -- R01 NS048528-04/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2010 Feb 26;327(5969):1145-8. doi: 10.1126/science.1183962.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurological Surgery and the Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, San Francisco, 513 Parnassus Avenue, San Francisco, CA 94143, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20185728" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Aging ; *Dominance, Ocular ; Mice ; Mice, Inbred C57BL ; *Neural Inhibition ; *Neuronal Plasticity ; Neurons/*transplantation ; Prosencephalon/cytology/embryology ; Sensory Deprivation ; Synapses/physiology ; Visual Cortex/growth & development/*physiology
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    Hippocampal short- and long-term plasticity are not modulated by astrocyte Ca2+ signaling (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-03-06
    Description: The concept that astrocytes release neuroactive molecules (gliotransmitters) to affect synaptic transmission has been a paradigm shift in neuroscience research over the past decade. This concept suggests that astrocytes, together with pre- and postsynaptic neuronal elements, make up a functional synapse. Astrocyte release of gliotransmitters (for example, glutamate and adenosine triphosphate) is generally accepted to be a Ca2+-dependent process. We used two mouse lines to either selectively increase or obliterate astrocytic Gq G protein-coupled receptor Ca2+ signaling to further test the hypothesis that astrocytes release gliotransmitters in a Ca2+-dependent manner to affect synaptic transmission. Neither increasing nor obliterating astrocytic Ca2+ fluxes affects spontaneous and evoked excitatory synaptic transmission or synaptic plasticity. Our findings suggest that, at least in the hippocampus, the mechanisms of gliotransmission need to be reconsidered.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Agulhon, Cendra -- Fiacco, Todd A -- McCarthy, Ken D -- NS020212/NS/NINDS NIH HHS/ -- NS033938/NS/NINDS NIH HHS/ -- R01 NS020212/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2010 Mar 5;327(5970):1250-4. doi: 10.1126/science.1184821.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, University of North Carolina at Chapel Hill, Genetic Medicine Building, CB 7365, Chapel Hill, NC 27599, USA. cendra_agulhon@med.unc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20203048" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Astrocytes/*metabolism ; CA1 Region, Hippocampal/cytology/*physiology ; Calcium/*metabolism ; *Calcium Signaling ; Excitatory Postsynaptic Potentials ; GTP-Binding Protein alpha Subunits, Gq-G11/metabolism ; In Vitro Techniques ; *Long-Term Potentiation ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; N-Methylaspartate/metabolism ; *Neuronal Plasticity ; Neurons/physiology ; Neurotransmitter Agents/metabolism ; Receptors, G-Protein-Coupled/genetics/metabolism ; *Synaptic Transmission
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    Comment on "Patterns of diversity in marine phytoplankton" (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-07-31
    Description: Barton et al. (Reports, 19 March 2010, p. 1509) argued that stable conditions enable neutral coexistence of many phytoplankton species in the tropical oceans, whereas seasonal variation causes low biodiversity in subpolar oceans. However, their model prediction is not robust. A minor deviation from the neutrality assumption favors coexistence in fluctuating rather than stable environments.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huisman, Jef -- New York, N.Y. -- Science. 2010 Jul 30;329(5991):512; author reply 512. doi: 10.1126/science.1189880.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Aquatic Microbiology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Post Office Box 94248, 1090 GE Amsterdam, Netherlands. j.huisman@uva.nl〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20671171" target="_blank"〉PubMed〈/a〉
    Keywords: *Biodiversity ; *Ecosystem ; Environment ; Geography ; Models, Biological ; Oceans and Seas ; *Phytoplankton/growth & development/physiology ; Population Dynamics ; Seasons ; *Seawater
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    Biodiversity. Brazil says rate of deforestation in Amazon continues to plunge (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-09-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Regalado, Antonio -- New York, N.Y. -- Science. 2010 Sep 10;329(5997):1270-1. doi: 10.1126/science.329.5997.1270-b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20829459" target="_blank"〉PubMed〈/a〉
    Keywords: *Biodiversity ; Brazil ; Conservation of Natural Resources/*statistics & numerical data
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    Amazonia through time: Andean uplift, climate change, landscape evolution, and biodiversity (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-11-13
    Description: The Amazonian rainforest is arguably the most species-rich terrestrial ecosystem in the world, yet the timing of the origin and evolutionary causes of this diversity are a matter of debate. We review the geologic and phylogenetic evidence from Amazonia and compare it with uplift records from the Andes. This uplift and its effect on regional climate fundamentally changed the Amazonian landscape by reconfiguring drainage patterns and creating a vast influx of sediments into the basin. On this "Andean" substrate, a region-wide edaphic mosaic developed that became extremely rich in species, particularly in Western Amazonia. We show that Andean uplift was crucial for the evolution of Amazonian landscapes and ecosystems, and that current biodiversity patterns are rooted deep in the pre-Quaternary.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hoorn, C -- Wesselingh, F P -- ter Steege, H -- Bermudez, M A -- Mora, A -- Sevink, J -- Sanmartin, I -- Sanchez-Meseguer, A -- Anderson, C L -- Figueiredo, J P -- Jaramillo, C -- Riff, D -- Negri, F R -- Hooghiemstra, H -- Lundberg, J -- Stadler, T -- Sarkinen, T -- Antonelli, A -- New York, N.Y. -- Science. 2010 Nov 12;330(6006):927-31. doi: 10.1126/science.1194585.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Paleoecology and Landscape Ecology, Institute for Biodiversity and Ecosystem Dynamics (IBED), University of Amsterdam, Science Park 904, 1098 XH Amsterdam, Netherlands. carina.hoorn@milne.cc〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21071659" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; *Climate Change ; Ecosystem ; Fossils ; Geography ; *Geological Phenomena ; Phylogeny ; Rivers ; South America ; Time ; Trees ; Wetlands
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    Biodiversity conservation: challenges beyond 2010 (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-09-11
    Description: The continued growth of human populations and of per capita consumption have resulted in unsustainable exploitation of Earth's biological diversity, exacerbated by climate change, ocean acidification, and other anthropogenic environmental impacts. We argue that effective conservation of biodiversity is essential for human survival and the maintenance of ecosystem processes. Despite some conservation successes (especially at local scales) and increasing public and government interest in living sustainably, biodiversity continues to decline. Moving beyond 2010, successful conservation approaches need to be reinforced and adequately financed. In addition, however, more radical changes are required that recognize biodiversity as a global public good, that integrate biodiversity conservation into policies and decision frameworks for resource production and consumption, and that focus on wider institutional and societal changes to enable more effective implementation of policy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rands, Michael R W -- Adams, William M -- Bennun, Leon -- Butchart, Stuart H M -- Clements, Andrew -- Coomes, David -- Entwistle, Abigail -- Hodge, Ian -- Kapos, Valerie -- Scharlemann, Jorn P W -- Sutherland, William J -- Vira, Bhaskar -- New York, N.Y. -- Science. 2010 Sep 10;329(5997):1298-303. doi: 10.1126/science.1189138.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cambridge Conservation Initiative, Judge Business School, University of Cambridge, Cambridge CB2 1AG, UK. mr494@cam.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20829476" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; *Conservation of Natural Resources/trends ; Decision Making ; Ecosystem ; Environment ; Humans ; International Cooperation ; Plants ; Population Dynamics ; Public Policy
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    O-mannosyl phosphorylation of alpha-dystroglycan is required for laminin binding (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-01-02
    Description: Alpha-dystroglycan (alpha-DG) is a cell-surface glycoprotein that acts as a receptor for both extracellular matrix proteins containing laminin-G domains and certain arenaviruses. Receptor binding is thought to be mediated by a posttranslational modification, and defective binding with laminin underlies a subclass of congenital muscular dystrophy. Using mass spectrometry- and nuclear magnetic resonance (NMR)-based structural analyses, we identified a phosphorylated O-mannosyl glycan on the mucin-like domain of recombinant alpha-DG, which was required for laminin binding. We demonstrated that patients with muscle-eye-brain disease and Fukuyama congenital muscular dystrophy, as well as mice with myodystrophy, commonly have defects in a postphosphoryl modification of this phosphorylated O-linked mannose, and that this modification is mediated by the like-acetylglucosaminyltransferase (LARGE) protein. These findings expand our understanding of the mechanisms that underlie congenital muscular dystrophy.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2978000/" 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/PMC2978000/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yoshida-Moriguchi, Takako -- Yu, Liping -- Stalnaker, Stephanie H -- Davis, Sarah -- Kunz, Stefan -- Madson, Michael -- Oldstone, Michael B A -- Schachter, Harry -- Wells, Lance -- Campbell, Kevin P -- 1U54NS053672/NS/NINDS NIH HHS/ -- AI55540/AI/NIAID NIH HHS/ -- P30 DK 54759/DK/NIDDK NIH HHS/ -- P30 DK054759/DK/NIDDK NIH HHS/ -- P41 RR018502/RR/NCRR NIH HHS/ -- R01 AI009484/AI/NIAID NIH HHS/ -- R01 AI009484-40/AI/NIAID NIH HHS/ -- R01 AI009484-41/AI/NIAID NIH HHS/ -- R01 AI045927/AI/NIAID NIH HHS/ -- R01 AI045927-08/AI/NIAID NIH HHS/ -- R01 AI045927-09/AI/NIAID NIH HHS/ -- R01 AI045927-10/AI/NIAID NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2010 Jan 1;327(5961):88-92. doi: 10.1126/science.1180512.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, University of Iowa Roy J. and Lucille A. Carver College of Medicine, 4283 Carver Biomedical Research Building, 285 Newton Road, Iowa City, IA 52242-1101, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20044576" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carbohydrate Conformation ; Cell Line ; Dystroglycans/chemistry/*metabolism ; Glycosylation ; Humans ; Laminin/*metabolism ; Magnetic Resonance Spectroscopy ; Mannose/*metabolism ; Mass Spectrometry ; Membrane Proteins/metabolism ; Mice ; Mice, Inbred C57BL ; Muscle, Skeletal/metabolism ; Muscular Dystrophies/metabolism ; Muscular Dystrophy, Animal/metabolism ; N-Acetylglucosaminyltransferases/genetics/metabolism ; Phosphorylation ; Protein Binding ; Recombinant Proteins/chemistry/metabolism
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    The shifting balance of diversity among major marine animal groups (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-09-04
    Description: The fossil record demonstrates that each major taxonomic group has a consistent net rate of diversification and a limit to its species richness. It has been thought that long-term changes in the dominance of major taxonomic groups can be predicted from these characteristics. However, new analyses show that diversity limits may rise or fall in response to adaptive radiations or extinctions. These changes are idiosyncratic and occur at different times in each taxa. For example, the end-Permian mass extinction permanently reduced the diversity of important, previously dominant groups such as brachiopods and crinoids. The current global crisis may therefore permanently alter the biosphere's taxonomic composition by changing the rules of evolution.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Alroy, J -- New York, N.Y. -- Science. 2010 Sep 3;329(5996):1191-4. doi: 10.1126/science.1189910.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Paleobiology Database, University of California, 735 State Street, Santa Barbara, CA 93101, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20813951" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Biological ; Animals ; Anthozoa ; *Biodiversity ; Biological Evolution ; Data Interpretation, Statistical ; *Databases, Factual ; Extinction, Biological ; *Fossils ; *Invertebrates ; Marine Biology ; Models, Biological ; *Mollusca ; Oceans and Seas ; Paleontology ; Population Dynamics ; Statistics as Topic ; Time
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    National indicators show biodiversity progress (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-08-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xu, Haigen -- Ding, Hui -- Wu, Jun -- New York, N.Y. -- Science. 2010 Aug 20;329(5994):900; author reply 900-1. doi: 10.1126/science.329.5994.900-b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20724616" target="_blank"〉PubMed〈/a〉
    Keywords: *Biodiversity ; China ; *Conservation of Natural Resources ; Environmental Pollution/prevention & control ; Trees
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    Lynx1, a cholinergic brake, limits plasticity in adult visual cortex (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-11-13
    Description: Experience-dependent brain plasticity typically declines after an early critical period during which circuits are established. Loss of plasticity with closure of the critical period limits improvement of function in adulthood, but the mechanisms that change the brain's plasticity remain poorly understood. Here, we identified an increase in expression of Lynx1 protein in mice that prevented plasticity in the primary visual cortex late in life. Removal of this molecular brake enhanced nicotinic acetylcholine receptor signaling. Lynx1 expression thus maintains stability of mature cortical networks in the presence of cholinergic innervation. The results suggest that modulating the balance between excitatory and inhibitory circuits reactivates visual plasticity and may present a therapeutic target.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3387538/" 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/PMC3387538/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Morishita, Hirofumi -- Miwa, Julie M -- Heintz, Nathaniel -- Hensch, Takao K -- 1 DP1 OD003699-01/OD/NIH HHS/ -- DA-17279/DA/NIDA NIH HHS/ -- DP1 OD003699/OD/NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2010 Nov 26;330(6008):1238-40. doi: 10.1126/science.1195320. Epub 2010 Nov 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉FM Kirby Neurobiology Center, Children's Hospital Boston, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21071629" target="_blank"〉PubMed〈/a〉
    Keywords: Aging ; Amblyopia/metabolism ; Animals ; Cholinesterase Inhibitors/pharmacology ; Dominance, Ocular ; Evoked Potentials, Visual ; Mecamylamine/pharmacology ; Membrane Glycoproteins/*genetics/metabolism/*physiology ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Neural Inhibition ; *Neuronal Plasticity ; Neuropeptides/*genetics/metabolism/*physiology ; Nicotinic Antagonists/pharmacology ; Physostigmine/pharmacology ; Receptors, Nicotinic/genetics/*metabolism ; Sensory Deprivation ; Signal Transduction ; *Vision, Ocular ; Visual Cortex/*physiology ; Visual Pathways
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    Fight for Yasuni far from finished (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-01-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Swing, Kelly -- New York, N.Y. -- Science. 2011 Jan 7;331(6013):29. doi: 10.1126/science.331.6013.29-a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21212338" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; Conservation of Natural Resources/*economics ; Ecuador ; Petroleum ; *Trees
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Predicting a human gut microbiota's response to diet in gnotobiotic mice (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-05-21
    Description: The interrelationships between our diets and the structure and operations of our gut microbial communities are poorly understood. A model community of 10 sequenced human gut bacteria was introduced into gnotobiotic mice, and changes in species abundance and microbial gene expression were measured in response to randomized perturbations of four defined ingredients in the host diet. From the responses, we developed a statistical model that predicted over 60% of the variation in species abundance evoked by diet perturbations, and we were able to identify which factors in the diet best explained changes seen for each community member. The approach is generally applicable, as shown by a follow-up study involving diets containing various mixtures of pureed human baby foods.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3303606/" 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/PMC3303606/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Faith, Jeremiah J -- McNulty, Nathan P -- Rey, Federico E -- Gordon, Jeffrey I -- DK30292/DK/NIDDK NIH HHS/ -- DK70977/DK/NIDDK NIH HHS/ -- R01 DK070977/DK/NIDDK NIH HHS/ -- R01 DK070977-08/DK/NIDDK NIH HHS/ -- R37 DK030292/DK/NIDDK NIH HHS/ -- R37 DK030292-31/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2011 Jul 1;333(6038):101-4. doi: 10.1126/science.1206025. Epub 2011 May 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO 63108, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21596954" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacteroides/genetics/physiology ; Biomass ; Caseins/administration & dosage ; Desulfovibrio/genetics/physiology ; *Diet ; Dietary Carbohydrates/administration & dosage ; Dietary Fats, Unsaturated/administration & dosage ; Dietary Proteins/administration & dosage ; Dietary Sucrose/administration & dosage ; Escherichia coli/genetics/physiology ; Feces/*microbiology ; Gastrointestinal Tract/*microbiology ; Gene Expression Profiling ; Gene Expression Regulation, Bacterial ; *Germ-Free Life ; Gram-Negative Bacteria/*physiology ; Gram-Positive Bacteria/genetics/*physiology ; Humans ; Infant ; Infant Food ; Linear Models ; Male ; *Metagenome ; Mice ; Mice, Inbred C57BL ; Models, Animal
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    Cerebellum shapes hippocampal spatial code (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-10-25
    Description: Spatial representation is an active process that requires complex multimodal integration from a large interacting network of cortical and subcortical structures. We sought to determine the role of cerebellar protein kinase C (PKC)-dependent plasticity in spatial navigation by recording the activity of hippocampal place cells in transgenic L7PKCI mice with selective disruption of PKC-dependent plasticity at parallel fiber-Purkinje cell synapses. Place cell properties were exclusively impaired when L7PKCI mice had to rely on self-motion cues. The behavioral consequence of such a deficit is evidenced here by selectively impaired navigation capabilities during a path integration task. Together, these results suggest that cerebellar PKC-dependent mechanisms are involved in processing self-motion signals essential to the shaping of hippocampal spatial representation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rochefort, Christelle -- Arabo, Arnaud -- Andre, Marion -- Poucet, Bruno -- Save, Etienne -- Rondi-Reig, Laure -- New York, N.Y. -- Science. 2011 Oct 21;334(6054):385-9. doi: 10.1126/science.1207403.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Neurobiologie des Processus Adaptatifs (UMR 7102), Navigation, Memory, and Aging (ENMVI) Team, Universite Pierre et Marie Curie-Centre National de la Recherche Scientifique (CNRS), F-75005 Paris, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22021859" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; CA1 Region, Hippocampal/cytology/*physiology ; Cerebellum/enzymology/*physiology ; Cues ; Darkness ; *Long-Term Synaptic Depression ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; *Motor Activity ; *Orientation ; Protein Kinase C/antagonists & inhibitors/metabolism ; Purkinje Cells/physiology ; Pyramidal Cells/*physiology ; *Space Perception
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    A circadian rhythm orchestrated by histone deacetylase 3 controls hepatic lipid metabolism (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-03-12
    Description: Disruption of the circadian clock exacerbates metabolic diseases, including obesity and diabetes. We show that histone deacetylase 3 (HDAC3) recruitment to the genome displays a circadian rhythm in mouse liver. Histone acetylation is inversely related to HDAC3 binding, and this rhythm is lost when HDAC3 is absent. Although amounts of HDAC3 are constant, its genomic recruitment in liver corresponds to the expression pattern of the circadian nuclear receptor Rev-erbalpha. Rev-erbalpha colocalizes with HDAC3 near genes regulating lipid metabolism, and deletion of HDAC3 or Rev-erbalpha in mouse liver causes hepatic steatosis. Thus, genomic recruitment of HDAC3 by Rev-erbalpha directs a circadian rhythm of histone acetylation and gene expression required for normal hepatic lipid homeostasis.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3389392/" 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/PMC3389392/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Feng, Dan -- Liu, Tao -- Sun, Zheng -- Bugge, Anne -- Mullican, Shannon E -- Alenghat, Theresa -- Liu, X Shirley -- Lazar, Mitchell A -- DK19525/DK/NIDDK NIH HHS/ -- DK43806/DK/NIDDK NIH HHS/ -- DK45586/DK/NIDDK NIH HHS/ -- DK49210/DK/NIDDK NIH HHS/ -- HG4069/HG/NHGRI NIH HHS/ -- P30 DK019525/DK/NIDDK NIH HHS/ -- R01 DK045586/DK/NIDDK NIH HHS/ -- R37 DK043806/DK/NIDDK NIH HHS/ -- R37 DK043806-20/DK/NIDDK NIH HHS/ -- RC1 DK086239/DK/NIDDK NIH HHS/ -- RC1DK08623/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2011 Mar 11;331(6022):1315-9. doi: 10.1126/science.1198125.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21393543" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Binding Sites ; Chromatin Immunoprecipitation ; Chronobiology Disorders/genetics/metabolism ; *Circadian Clocks ; *Circadian Rhythm ; DNA/metabolism ; Epigenesis, Genetic ; Fatty Liver/*metabolism ; Gene Expression Regulation ; *Genome ; Histone Deacetylases/*metabolism ; Histones/metabolism ; Homeostasis ; *Lipid Metabolism ; Lipogenesis/genetics ; Liver/*metabolism ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Molecular Sequence Data ; Nuclear Receptor Co-Repressor 1/metabolism ; Nuclear Receptor Subfamily 1, Group D, Member 1/genetics/metabolism ; RNA Polymerase II/metabolism ; Up-Regulation
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    Leishmania RNA virus controls the severity of mucocutaneous leishmaniasis (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-02-12
    Description: Mucocutaneous leishmaniasis is caused by infections with intracellular parasites of the Leishmania Viannia subgenus, including Leishmania guyanensis. The pathology develops after parasite dissemination to nasopharyngeal tissues, where destructive metastatic lesions form with chronic inflammation. Currently, the mechanisms involved in lesion development are poorly understood. Here we show that metastasizing parasites have a high Leishmania RNA virus-1 (LRV1) burden that is recognized by the host Toll-like receptor 3 (TLR3) to induce proinflammatory cytokines and chemokines. Paradoxically, these TLR3-mediated immune responses rendered mice more susceptible to infection, and the animals developed an increased footpad swelling and parasitemia. Thus, LRV1 in the metastasizing parasites subverted the host immune response to Leishmania and promoted parasite persistence.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3253482/" 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/PMC3253482/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ives, Annette -- Ronet, Catherine -- Prevel, Florence -- Ruzzante, Giulia -- Fuertes-Marraco, Silvia -- Schutz, Frederic -- Zangger, Haroun -- Revaz-Breton, Melanie -- Lye, Lon-Fye -- Hickerson, Suzanne M -- Beverley, Stephen M -- Acha-Orbea, Hans -- Launois, Pascal -- Fasel, Nicolas -- Masina, Slavica -- A129646/PHS HHS/ -- R01 AI029646/AI/NIAID NIH HHS/ -- R01 AI029646-23/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2011 Feb 11;331(6018):775-8. doi: 10.1126/science.1199326.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of Lausanne, 1066 Epalinges, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21311023" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chemokines/*metabolism ; Cytokines/*metabolism ; Inflammation Mediators/metabolism ; Leishmania guyanensis/*pathogenicity/*virology ; Leishmaniasis, Mucocutaneous/*immunology/parasitology ; Leishmaniavirus/*immunology/physiology ; Macrophages/immunology/parasitology ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Parasitemia ; Phagosomes/parasitology ; RNA, Double-Stranded/immunology ; RNA, Viral/immunology ; Toll-Like Receptor 3/*immunology ; Toll-Like Receptors/immunology
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    A gustotopic map of taste qualities in the mammalian brain (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-09-03
    Description: The taste system is one of our fundamental senses, responsible for detecting and responding to sweet, bitter, umami, salty, and sour stimuli. In the tongue, the five basic tastes are mediated by separate classes of taste receptor cells each finely tuned to a single taste quality. We explored the logic of taste coding in the brain by examining how sweet, bitter, umami, and salty qualities are represented in the primary taste cortex of mice. We used in vivo two-photon calcium imaging to demonstrate topographic segregation in the functional architecture of the gustatory cortex. Each taste quality is represented in its own separate cortical field, revealing the existence of a gustotopic map in the brain. These results expose the basic logic for the central representation of taste.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3523322/" 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/PMC3523322/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Xiaoke -- Gabitto, Mariano -- Peng, Yueqing -- Ryba, Nicholas J P -- Zuker, Charles S -- Z01 DE000561-15/Intramural NIH HHS/ -- Z01 DE000561-16/Intramural NIH HHS/ -- ZIA DE000561-17/Intramural NIH HHS/ -- ZIA DE000561-18/Intramural NIH HHS/ -- ZIA DE000561-19/Intramural NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Sep 2;333(6047):1262-6. doi: 10.1126/science.1204076.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Biochemistry and Molecular Biophysics, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21885776" target="_blank"〉PubMed〈/a〉
    Keywords: Afferent Pathways ; Animals ; *Brain Mapping ; Cerebral Cortex/cytology/*physiology ; Cycloheximide ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Molecular Imaging ; Neurons/*physiology ; Sodium Chloride ; Sodium Glutamate ; Sweetening Agents ; Taste/*physiology ; Taste Buds/physiology
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    Conservation: limits of land sparing (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-11-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fischer, Joern -- Batary, Peter -- Bawa, Kamaljit S -- Brussaard, Lijbert -- Chappell, M Jahi -- Clough, Yann -- Daily, Gretchen C -- Dorrough, Josh -- Hartel, Tibor -- Jackson, Louise E -- Klein, Alexandra M -- Kremen, Claire -- Kuemmerle, Tobias -- Lindenmayer, David B -- Mooney, Harold A -- Perfecto, Ivette -- Philpott, Stacy M -- Tscharntke, Teja -- Vandermeer, John -- Wanger, Thomas Cherico -- Von Wehrden, Henrik -- New York, N.Y. -- Science. 2011 Nov 4;334(6056):593; author reply 594-5. doi: 10.1126/science.334.6056.593-a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22053026" target="_blank"〉PubMed〈/a〉
    Keywords: *Agriculture ; Animals ; *Biodiversity ; *Conservation of Natural Resources ; Crops, Agricultural/*growth & development ; *Ecosystem ; *Food
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    The Toll-like receptor 2 pathway establishes colonization by a commensal of the human microbiota (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-04-23
    Description: Mucosal surfaces constantly encounter microbes. Toll-like receptors (TLRs) mediate recognition of microbial patterns to eliminate pathogens. By contrast, we demonstrate that the prominent gut commensal Bacteroides fragilis activates the TLR pathway to establish host-microbial symbiosis. TLR2 on CD4(+) T cells is required for B. fragilis colonization of a unique mucosal niche in mice during homeostasis. A symbiosis factor (PSA, polysaccharide A) of B. fragilis signals through TLR2 directly on Foxp3(+) regulatory T cells to promote immunologic tolerance. B. fragilis lacking PSA is unable to restrain T helper 17 cell responses and is defective in niche-specific mucosal colonization. Therefore, commensal bacteria exploit the TLR pathway to actively suppress immunity. We propose that the immune system can discriminate between pathogens and the microbiota through recognition of symbiotic bacterial molecules in a process that engenders commensal colonization.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3164325/" 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/PMC3164325/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Round, June L -- Lee, S Melanie -- Li, Jennifer -- Tran, Gloria -- Jabri, Bana -- Chatila, Talal A -- Mazmanian, Sarkis K -- AI 080002/AI/NIAID NIH HHS/ -- AI 088626/AI/NIAID NIH HHS/ -- DK 078938/DK/NIDDK NIH HHS/ -- DK 083633/DK/NIDDK NIH HHS/ -- R01 AI085090/AI/NIAID NIH HHS/ -- R01 AI085090-01/AI/NIAID NIH HHS/ -- R01 AI085090-01S1/AI/NIAID NIH HHS/ -- R01 AI085090-02/AI/NIAID NIH HHS/ -- R01 AI085090-03/AI/NIAID NIH HHS/ -- R01 DK078938/DK/NIDDK NIH HHS/ -- R01 DK078938-01A2/DK/NIDDK NIH HHS/ -- R01 DK078938-02/DK/NIDDK NIH HHS/ -- R01 DK078938-03/DK/NIDDK NIH HHS/ -- R01 DK078938-04/DK/NIDDK NIH HHS/ -- R21 AI080002/AI/NIAID NIH HHS/ -- R21 AI080002-01/AI/NIAID NIH HHS/ -- R21 AI080002-02/AI/NIAID NIH HHS/ -- R21 AI088626/AI/NIAID NIH HHS/ -- R21 AI088626-01/AI/NIAID NIH HHS/ -- R21 AI088626-02/AI/NIAID NIH HHS/ -- R21 DK083633/DK/NIDDK NIH HHS/ -- R21 DK083633-01A1/DK/NIDDK NIH HHS/ -- R21 DK083633-02/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2011 May 20;332(6032):974-7. doi: 10.1126/science.1206095. Epub 2011 Apr 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biology, California Institute of Technology, Pasadena, CA 91125, USA. jround@caltech.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21512004" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacteroides fragilis/*growth & development/*immunology ; Colon/immunology/microbiology ; Germ-Free Life ; Homeostasis ; Humans ; *Immune Tolerance ; Immunity, Mucosal ; Interleukin-10/metabolism ; Intestinal Mucosa/*immunology/*microbiology ; Metagenome ; Mice ; Mice, Inbred C57BL ; Models, Biological ; Polysaccharides, Bacterial/immunology/*metabolism ; Signal Transduction ; Specific Pathogen-Free Organisms ; Symbiosis ; T-Lymphocytes, Regulatory/immunology ; Th17 Cells/immunology ; Toll-Like Receptor 2/immunology/*metabolism
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    Science-policy interface: beyond assessments (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-08-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hulme, Mike -- Mahony, Martin -- Beck, Silke -- Gorg, Christoph -- Hansjurgens, Bernd -- Hauck, Jennifer -- Nesshover, Carsten -- Paulsch, Axel -- Vandewalle, Marie -- Wittmer, Heidi -- Boschen, Stefan -- Bridgewater, Peter -- Diaw, Mariteuw Chimere -- Fabre, Pierre -- Figueroa, Aurelia -- Heong, Kong Luen -- Korn, Horst -- Leemans, Rik -- Lovbrand, Eva -- Hamid, Mohd Norowi -- Monfreda, Chad -- Pielke, Roger Jr -- Settele, Josef -- Winter, Marten -- Vadrot, Alice B M -- van den Hove, Sybille -- van der Sluijs, Jeroen P -- New York, N.Y. -- Science. 2011 Aug 5;333(6043):697-8. doi: 10.1126/science.333.6043.697.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21817033" target="_blank"〉PubMed〈/a〉
    Keywords: *Biodiversity ; *Ecosystem ; *Policy ; Policy Making
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    Origins of biodiversity (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-01-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rull, Valenti -- New York, N.Y. -- Science. 2011 Jan 28;331(6016):398-9; author reply 399-400. doi: 10.1126/science.331.6016.398-c.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21273468" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; Extinction, Biological ; Genetic Speciation ; Phylogeny ; South America ; Tropical Climate
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Endocannabinoid hydrolysis generates brain prostaglandins that promote neuroinflammation (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-10-25
    Description: Phospholipase A(2)(PLA(2)) enzymes are considered the primary source of arachidonic acid for cyclooxygenase (COX)-mediated biosynthesis of prostaglandins. Here, we show that a distinct pathway exists in brain, where monoacylglycerol lipase (MAGL) hydrolyzes the endocannabinoid 2-arachidonoylglycerol to generate a major arachidonate precursor pool for neuroinflammatory prostaglandins. MAGL-disrupted animals show neuroprotection in a parkinsonian mouse model. These animals are spared the hemorrhaging caused by COX inhibitors in the gut, where prostaglandins are instead regulated by cytosolic PLA(2). These findings identify MAGL as a distinct metabolic node that couples endocannabinoid to prostaglandin signaling networks in the nervous system and suggest that inhibition of this enzyme may be a new and potentially safer way to suppress the proinflammatory cascades that underlie neurodegenerative disorders.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3249428/" 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/PMC3249428/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nomura, Daniel K -- Morrison, Bradley E -- Blankman, Jacqueline L -- Long, Jonathan Z -- Kinsey, Steven G -- Marcondes, Maria Cecilia G -- Ward, Anna M -- Hahn, Yun Kyung -- Lichtman, Aron H -- Conti, Bruno -- Cravatt, Benjamin F -- 5P01DA009789/DA/NIDA NIH HHS/ -- AG028040/AG/NIA NIH HHS/ -- DA017259/DA/NIDA NIH HHS/ -- DA026261/DA/NIDA NIH HHS/ -- F31 DA026261-03/DA/NIDA NIH HHS/ -- K99 DA030908/DA/NIDA NIH HHS/ -- K99 DA030908-01/DA/NIDA NIH HHS/ -- K99DA030908/DA/NIDA NIH HHS/ -- P01 DA009789/DA/NIDA NIH HHS/ -- P01 DA009789-14/DA/NIDA NIH HHS/ -- P01 DA017259/DA/NIDA NIH HHS/ -- P01 DA017259-08/DA/NIDA NIH HHS/ -- P01DA01725/DA/NIDA NIH HHS/ -- R00 DA030908/DA/NIDA NIH HHS/ -- R00 DA030908-02/DA/NIDA NIH HHS/ -- R00DA030908/DA/NIDA NIH HHS/ -- R01 AG028040/AG/NIA NIH HHS/ -- R01 AG028040-04/AG/NIA NIH HHS/ -- R03 DA027936/DA/NIDA NIH HHS/ -- R03 DA027936-02/DA/NIDA NIH HHS/ -- R03DA027936/DA/NIDA NIH HHS/ -- T32 DA007027/DA/NIDA NIH HHS/ -- T32 DA007027-33/DA/NIDA NIH HHS/ -- T32DA007027/DA/NIDA NIH HHS/ -- New York, N.Y. -- Science. 2011 Nov 11;334(6057):809-13. doi: 10.1126/science.1209200. Epub 2011 Oct 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Skaggs Institute for Chemical Biology and Department of Chemical Physiology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA. dnomura@berkeley.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22021672" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arachidonic Acid/metabolism ; Arachidonic Acids/*metabolism ; Benzodioxoles/pharmacology ; Brain/drug effects/*metabolism/pathology ; Cannabinoid Receptor Modulators/*metabolism ; Cyclooxygenase 1/metabolism ; Cytokines/metabolism ; Eicosanoids/metabolism ; *Endocannabinoids ; Enzyme Inhibitors/pharmacology ; Glycerides/*metabolism ; Hydrolysis ; Inflammation/*metabolism/pathology ; Inflammation Mediators/pharmacology ; Lipopolysaccharides/pharmacology ; Liver/metabolism ; Lung/metabolism ; Metabolomics ; Mice ; Mice, Inbred C57BL ; Monoacylglycerol Lipases/antagonists & inhibitors/genetics/*metabolism ; Neuroprotective Agents/pharmacology ; Parkinsonian Disorders/metabolism/pathology ; Phospholipases A2/genetics/metabolism ; Piperidines/pharmacology ; Prostaglandins/biosynthesis/*metabolism ; Signal Transduction
    Print ISSN: 0036-8075
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    Ecology. Food and biodiversity (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-09-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Godfray, H Charles J -- New York, N.Y. -- Science. 2011 Sep 2;333(6047):1231-2. doi: 10.1126/science.1211815.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Zoology and Oxford Martin School Institute of Biodiversity, University of Oxford, Oxford OX1 3PS, UK. charles.godfray@zoo.ox.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21885765" target="_blank"〉PubMed〈/a〉
    Keywords: *Agriculture ; Animals ; *Biodiversity ; Birds ; *Conservation of Natural Resources ; Crops, Agricultural/*growth & development ; *Ecosystem ; *Food ; Ghana ; India ; Population Density ; Trees
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    Different B cell populations mediate early and late memory during an endogenous immune response (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-02-12
    Description: Memory B cells formed in response to microbial antigens provide immunity to later infections; however, the inability to detect rare endogenous antigen-specific cells limits current understanding of this process. Using an antigen-based technique to enrich these cells, we found that immunization with a model protein generated B memory cells that expressed isotype-switched immunoglobulins (swIg) or retained IgM. The more numerous IgM(+) cells were longer lived than the swIg(+) cells. However, swIg(+) memory cells dominated the secondary response because of the capacity to become activated in the presence of neutralizing serum immunoglobulin. Thus, we propose that memory relies on swIg(+) cells until they disappear and serum immunoglobulin falls to a low level, in which case memory resides with durable IgM(+) reserves.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3993090/" 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/PMC3993090/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pape, Kathryn A -- Taylor, Justin J -- Maul, Robert W -- Gearhart, Patricia J -- Jenkins, Marc K -- F32 AI091033/AI/NIAID NIH HHS/ -- R01 AI036914/AI/NIAID NIH HHS/ -- R01 AI039614/AI/NIAID NIH HHS/ -- R37 AI027998/AI/NIAID NIH HHS/ -- T32 CA009138/CA/NCI NIH HHS/ -- Intramural NIH HHS/ -- New York, N.Y. -- Science. 2011 Mar 4;331(6021):1203-7. doi: 10.1126/science.1201730. Epub 2011 Feb 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology, Center for Immunology, University of Minnesota Medical School, Minneapolis, MN 55455, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21310965" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens/immunology ; Antigens, CD38/analysis ; B-Lymphocyte Subsets/*immunology ; Cell Survival ; Female ; Germinal Center/cytology/immunology ; Immunization ; *Immunoglobulin Class Switching ; Immunoglobulin M/genetics/*immunology ; *Immunologic Memory ; Lymph Nodes/cytology/immunology ; Lymphocyte Activation ; Male ; Mice ; Mice, Inbred C57BL ; Mutation ; Phycocyanin/immunology ; Phycoerythrin/immunology ; Spleen/cytology/immunology
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Exercise and genetic rescue of SCA1 via the transcriptional repressor Capicua (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-11-05
    Description: Spinocerebellar ataxia type 1 (SCA1) is a fatal neurodegenerative disease caused by expansion of a translated CAG repeat in Ataxin-1 (ATXN1). To determine the long-term effects of exercise, we implemented a mild exercise regimen in a mouse model of SCA1 and found a considerable improvement in survival accompanied by up-regulation of epidermal growth factor and consequential down-regulation of Capicua, which is an ATXN1 interactor. Offspring of Capicua mutant mice bred to SCA1 mice showed significant improvement of all disease phenotypes. Although polyglutamine-expanded Atxn1 caused some loss of Capicua function, further reduction of Capicua levels--either genetically or by exercise--mitigated the disease phenotypes by dampening the toxic gain of function. Thus, exercise might have long-term beneficial effects in other ataxias and neurodegenerative diseases.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3232424/" 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/PMC3232424/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fryer, John D -- Yu, Peng -- Kang, Hyojin -- Mandel-Brehm, Caleigh -- Carter, Angela N -- Crespo-Barreto, Juan -- Gao, Yan -- Flora, Adriano -- Shaw, Chad -- Orr, Harry T -- Zoghbi, Huda Y -- 1F32NS055545/NS/NINDS NIH HHS/ -- HD24064/HD/NICHD NIH HHS/ -- NS022920/NS/NINDS NIH HHS/ -- NS045667/NS/NINDS NIH HHS/ -- NS27699/NS/NINDS NIH HHS/ -- NS27699-20S1/NS/NINDS NIH HHS/ -- P30 HD024064/HD/NICHD NIH HHS/ -- P30 HD024064-22/HD/NICHD NIH HHS/ -- P30 HD024064-23/HD/NICHD NIH HHS/ -- R01 NS027699/NS/NINDS NIH HHS/ -- R01 NS027699-20S1/NS/NINDS NIH HHS/ -- R01 NS027699-21/NS/NINDS NIH HHS/ -- R01 NS027699-22/NS/NINDS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Nov 4;334(6056):690-3. doi: 10.1126/science.1212673.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22053053" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Ataxin-1 ; Ataxins ; Cerebellum/metabolism ; Disease Models, Animal ; *Exercise Therapy ; Gene Knock-In Techniques ; Mice ; Mice, Inbred C57BL ; Mice, Mutant Strains ; Nerve Tissue Proteins/genetics ; Nuclear Proteins/genetics ; Repressor Proteins/genetics/*physiology ; Spinocerebellar Ataxias/genetics/*therapy
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    Global genetic resources. Marine biodiversity and gene patents (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-03-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arnaud-Haond, Sophie -- Arrieta, Jesus M -- Duarte, Carlos M -- New York, N.Y. -- Science. 2011 Mar 25;331(6024):1521-2. doi: 10.1126/science.1200783.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Ifremer (French Research Institute for Exploration of the Sea) Centre de Brest; Department DEEP-LEP, Plouzane, France. sophie.arnaud@ifremer.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21436424" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aquatic Organisms/*genetics ; *Biodiversity ; *Genes ; International Cooperation ; Oceans and Seas ; *Patents as Topic ; United Nations
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    GRK2-dependent S1PR1 desensitization is required for lymphocytes to overcome their attraction to blood (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-10-01
    Description: Lymphocytes egress from lymphoid organs in response to sphingosine-1-phosphate (S1P); minutes later they migrate from blood into tissue against the S1P gradient. The mechanisms facilitating cell movement against the gradient have not been defined. Here, we show that heterotrimeric guanine nucleotide-binding protein-coupled receptor kinase-2 (GRK2) functions in down-regulation of S1P receptor-1 (S1PR1) on blood-exposed lymphocytes. T and B cell movement from blood into lymph nodes is reduced in the absence of GRK2 but is restored in S1P-deficient mice. In the spleen, B cell movement between the blood-rich marginal zone and follicles is disrupted by GRK2 deficiency and by mutation of an S1PR1 desensitization motif. Moreover, delivery of systemic antigen into follicles is impaired. Thus, GRK2-dependent S1PR1 desensitization allows lymphocytes to escape circulatory fluids and migrate into lymphoid tissues.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3267326/" 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/PMC3267326/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arnon, Tal I -- Xu, Ying -- Lo, Charles -- Pham, Trung -- An, Jinping -- Coughlin, Shaun -- Dorn, Gerald W -- Cyster, Jason G -- AI74847/AI/NIAID NIH HHS/ -- R01 AI074847/AI/NIAID NIH HHS/ -- R01 AI074847-05/AI/NIAID NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Sep 30;333(6051):1898-903. doi: 10.1126/science.1208248.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Department of Microbiology and Immunology, University of California San Francisco, 513 Parnassus Avenue, San Francisco, CA 94143, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21960637" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigen-Antibody Complex/immunology ; B-Lymphocytes/immunology/*physiology ; Blood ; Cell Movement ; Chemokines/physiology ; Chemotaxis, Leukocyte ; Down-Regulation ; G-Protein-Coupled Receptor Kinase 2/*metabolism ; Ligands ; Lymph Nodes/cytology ; Lysophospholipids/metabolism ; Mice ; Mice, Inbred C57BL ; Mutation ; Receptors, Lysosphingolipid/genetics/*metabolism ; Signal Transduction ; Sphingosine/analogs & derivatives/metabolism ; Spleen/cytology/immunology ; T-Lymphocytes/immunology/*physiology
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    Activation of visual pigments by light and heat (2011)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2011-06-11
    Description: Vision begins with photoisomerization of visual pigments. Thermal energy can complement photon energy to drive photoisomerization, but it also triggers spontaneous pigment activation as noise that interferes with light detection. For half a century, the mechanism underlying this dark noise has remained controversial. We report here a quantitative relation between a pigment's photoactivation energy and its peak-absorption wavelength, lambda(max). Using this relation and assuming that pigment activations by light and heat go through the same ground-state isomerization energy barrier, we can predict the relative noise of diverse pigments with multi-vibrational-mode thermal statistics. The agreement between predictions and our measurements strongly suggests that pigment noise arises from canonical isomerization. The predicted high noise for pigments with lambda(max) in the infrared presumably explains why they apparently do not exist in nature.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4349410/" 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/PMC4349410/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Luo, Dong-Gen -- Yue, Wendy W S -- Ala-Laurila, Petri -- Yau, King-Wai -- EY06837/EY/NEI NIH HHS/ -- R01 EY006837/EY/NEI NIH HHS/ -- R37 EY006837/EY/NEI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Jun 10;332(6035):1307-12. doi: 10.1126/science.1200172.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA. dgluo@jhmi.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21659602" target="_blank"〉PubMed〈/a〉
    Keywords: Ambystoma ; Animals ; Bufo marinus ; Goldfish ; Hot Temperature ; In Vitro Techniques ; Light ; *Light Signal Transduction ; Mice ; Mice, Inbred C57BL ; Photons ; Retinal Cone Photoreceptor Cells/physiology ; Retinal Pigments/chemistry/*physiology/radiation effects ; Rhodopsin/physiology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Prioritizing taxonomists (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-04-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Uniyal, Sanjay Kumar -- New York, N.Y. -- Science. 2011 Apr 29;332(6029):536-7. doi: 10.1126/science.332.6029.536-c.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21527695" target="_blank"〉PubMed〈/a〉
    Keywords: *Biodiversity ; *Classification
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    The antibacterial lectin RegIIIgamma promotes the spatial segregation of microbiota and host in the intestine (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-10-15
    Description: The mammalian intestine is home to ~100 trillion bacteria that perform important metabolic functions for their hosts. The proximity of vast numbers of bacteria to host intestinal tissues raises the question of how symbiotic host-bacterial relationships are maintained without eliciting potentially harmful immune responses. Here, we show that RegIIIgamma, a secreted antibacterial lectin, is essential for maintaining a ~50-micrometer zone that physically separates the microbiota from the small intestinal epithelial surface. Loss of host-bacterial segregation in RegIIIgamma(-/-) mice was coupled to increased bacterial colonization of the intestinal epithelial surface and enhanced activation of intestinal adaptive immune responses by the microbiota. Together, our findings reveal that RegIIIgamma is a fundamental immune mechanism that promotes host-bacterial mutualism by regulating the spatial relationships between microbiota and host.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3321924/" 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/PMC3321924/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vaishnava, Shipra -- Yamamoto, Miwako -- Severson, Kari M -- Ruhn, Kelly A -- Yu, Xiaofei -- Koren, Omry -- Ley, Ruth -- Wakeland, Edward K -- Hooper, Lora V -- R01 DK070855/DK/NIDDK NIH HHS/ -- R01 DK070855-06/DK/NIDDK NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Oct 14;334(6053):255-8. doi: 10.1126/science.1209791.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology, The University of Texas Southwestern Medical Center at Dallas, Dallas, TX 75390, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21998396" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptive Immunity ; Animals ; Anti-Bacterial Agents/pharmacology ; Bacterial Load ; Gram-Negative Bacteria/immunology/*physiology ; Gram-Positive Bacteria/immunology/*physiology ; Homeostasis ; Immunoglobulin A/analysis ; Intestinal Mucosa/immunology/*microbiology ; Intestine, Small/immunology/*microbiology ; Lectins, C-Type/physiology ; *Metagenome ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Myeloid Differentiation Factor 88/genetics/metabolism ; Proteins/*metabolism ; Symbiosis ; T-Lymphocytes, Helper-Inducer/immunology
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    Climate. Running out of climate space (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-11-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ohlemuller, Ralf -- New York, N.Y. -- Science. 2011 Nov 4;334(6056):613-4. doi: 10.1126/science.1214215.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Biological and Biomedical Sciences, and Institute of Hazard, Risk and Resilience (IHRR), Durham University, Durham, DH1 3LE, UK. ralf.ohlemuller@durham.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22053039" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; *Climate Change ; *Ecosystem
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    Protein tyrosine kinase Wee1B is essential for metaphase II exit in mouse oocytes (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-04-02
    Description: Waves of cyclin synthesis and degradation regulate the activity of Cdc2 protein kinase during the cell cycle. Cdc2 inactivation by Wee1B-mediated phosphorylation is necessary for arrest of the oocyte at G2-prophase, but it is unclear whether this regulation functions later during the metaphase-to-anaphase transition. We show that reactivation of a Wee1B pathway triggers the decrease in Cdc2 activity during egg activation. When Wee1B is down-regulated, oocytes fail to form a pronucleus in response to Ca(2+) signals. Calcium-calmodulin-dependent kinase II (CaMKII) activates Wee1B, and CaMKII-driven exit from metaphase II is inhibited by Wee1B down-regulation, demonstrating that exit from metaphase requires not only a proteolytic degradation of cyclin B but also the inhibitory phosphorylation of Cdc2 by Wee1B.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4104668/" 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/PMC4104668/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Oh, Jeong Su -- Susor, Andrej -- Conti, Marco -- GM080527-05/GM/NIGMS NIH HHS/ -- HD052909/HD/NICHD NIH HHS/ -- R01 GM080527/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2011 Apr 22;332(6028):462-5. doi: 10.1126/science.1199211. Epub 2011 Mar 31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Reproductive Sciences, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, CA 94143-0556, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21454751" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; CDC2 Protein Kinase/antagonists & inhibitors/metabolism ; Calcium/metabolism ; Calcium Signaling ; Calcium-Calmodulin-Dependent Protein Kinase Type 2/metabolism ; Cell Cycle Proteins/genetics/*metabolism ; Cyclin B/genetics/metabolism ; Down-Regulation ; Female ; Gene Knockdown Techniques ; Maturation-Promoting Factor/metabolism ; *Meiosis ; *Metaphase ; Mice ; Mice, Inbred C57BL ; Oocytes/*physiology ; Phosphorylation ; Protein-Tyrosine Kinases/genetics/*metabolism ; RNA, Messenger/genetics/metabolism
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    Successful transmission of a retrovirus depends on the commensal microbiota (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-10-15
    Description: To establish chronic infections, viruses must develop strategies to evade the host's immune responses. Many retroviruses, including mouse mammary tumor virus (MMTV), are transmitted most efficiently through mucosal surfaces rich in microbiota. We found that MMTV, when ingested by newborn mice, stimulates a state of unresponsiveness toward viral antigens. This process required the intestinal microbiota, as antibiotic-treated mice or germ-free mice did not transmit infectious virus to their offspring. MMTV-bound bacterial lipopolysaccharide triggered Toll-like receptor 4 and subsequent interleukin-6 (IL-6)-dependent induction of the inhibitory cytokine IL-10. Thus, MMTV has evolved to rely on the interaction with the microbiota to induce an immune evasion pathway. Together, these findings reveal the fundamental importance of commensal microbiota in viral infections.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3519937/" 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/PMC3519937/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kane, Melissa -- Case, Laure K -- Kopaskie, Karyl -- Kozlova, Alena -- MacDearmid, Cameron -- Chervonsky, Alexander V -- Golovkina, Tatyana V -- AI082418/AI/NIAID NIH HHS/ -- AI090084/AI/NIAID NIH HHS/ -- CA100383/CA/NCI NIH HHS/ -- DK42086/DK/NIDDK NIH HHS/ -- P30 CA014599/CA/NCI NIH HHS/ -- R01 AI090084/AI/NIAID NIH HHS/ -- R01 CA134667/CA/NCI NIH HHS/ -- R56 AI090084/AI/NIAID NIH HHS/ -- T32 AI065382-01/AI/NIAID NIH HHS/ -- T32GM007183/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2011 Oct 14;334(6053):245-9. doi: 10.1126/science.1210718.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology, The University of Chicago, Chicago, IL 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21998394" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Newborn ; Anti-Bacterial Agents/pharmacology ; Antibodies, Viral/biosynthesis ; Antigens, Viral/immunology ; *Bacterial Physiological Phenomena ; Female ; Germ-Free Life ; *Immune Evasion ; Interleukin-10/genetics/metabolism ; Intestinal Mucosa/*virology ; Intestines/*microbiology ; Lipopolysaccharides/immunology/metabolism ; Mammary Tumor Virus, Mouse/*immunology/*pathogenicity ; *Metagenome ; Mice ; Mice, Inbred C3H ; Mice, Inbred C57BL ; Pregnancy ; Pregnancy Complications, Infectious/virology ; Retroviridae Infections/immunology/*transmission/virology ; Specific Pathogen-Free Organisms ; Toll-Like Receptor 4/immunology/metabolism ; Tumor Virus Infections/immunology/transmission/virology ; Virus Replication
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    Role for the membrane receptor guanylyl cyclase-C in attention deficiency and hyperactive behavior (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-08-13
    Description: Midbrain dopamine neurons regulate many important behavioral processes, and their dysfunctions are associated with several human neuropsychiatric disorders such as attention deficit hyperactivity disorder (ADHD) and schizophrenia. Here, we report that these neurons in mice selectively express guanylyl cyclase-C (GC-C), a membrane receptor previously thought to be expressed mainly in the intestine. GC-C activation potentiates the excitatory responses mediated by glutamate and acetylcholine receptors via the activity of guanosine 3',5'-monophosphate-dependent protein kinase (PKG). Mice in which GC-C has been knocked out exhibit hyperactivity and attention deficits. Moreover, their behavioral phenotypes are reversed by ADHD therapeutics and a PKG activator. These results indicate important behavioral and physiological functions for the GC-C/PKG signaling pathway within the brain and suggest new therapeutic targets for neuropsychiatric disorders related to the malfunctions of midbrain dopamine neurons.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gong, Rong -- Ding, Cheng -- Hu, Ji -- Lu, Yao -- Liu, Fei -- Mann, Elizabeth -- Xu, Fuqiang -- Cohen, Mitchell B -- Luo, Minmin -- New York, N.Y. -- Science. 2011 Sep 16;333(6049):1642-6. doi: 10.1126/science.1207675. Epub 2011 Aug 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Graduate Program in Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21835979" target="_blank"〉PubMed〈/a〉
    Keywords: Amphetamine/administration & dosage ; Animals ; Attention ; Attention Deficit Disorder with Hyperactivity/genetics/*metabolism ; Behavior, Animal/drug effects ; Cyclic GMP/metabolism ; Cyclic GMP-Dependent Protein Kinases/*metabolism ; Disease Models, Animal ; Dopamine/metabolism ; Enzyme Activation ; Gastrointestinal Hormones/metabolism/pharmacology ; Glycine/analogs & derivatives/metabolism/pharmacology ; Impulsive Behavior ; Ligands ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Motor Activity/drug effects ; Natriuretic Peptides/metabolism/pharmacology ; Neurons/*metabolism ; Patch-Clamp Techniques ; Receptors, Glutamate/metabolism ; Receptors, Guanylate Cyclase-Coupled/genetics/*metabolism ; Receptors, Muscarinic/metabolism ; Receptors, Peptide/genetics/*metabolism ; Resorcinols/metabolism/pharmacology ; Signal Transduction ; Substantia Nigra/cytology/*metabolism ; Ventral Tegmental Area/cytology/*metabolism
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    Chemical and genetic engineering of selective ion channel-ligand interactions (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-09-03
    Description: Ionic flux mediates essential physiological and behavioral functions in defined cell populations. Cell type-specific activators of diverse ionic conductances are needed for probing these effects. We combined chemistry and protein engineering to enable the systematic creation of a toolbox of ligand-gated ion channels (LGICs) with orthogonal pharmacologic selectivity and divergent functional properties. The LGICs and their small-molecule effectors were able to activate a range of ionic conductances in genetically specified cell types. LGICs constructed for neuronal perturbation could be used to selectively manipulate neuron activity in mammalian brains in vivo. The diversity of ion channel tools accessible from this approach will be useful for examining the relationship between neuronal activity and animal behavior, as well as for cell biological and physiological applications requiring chemical control of ion conductance.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3210548/" 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/PMC3210548/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Magnus, Christopher J -- Lee, Peter H -- Atasoy, Deniz -- Su, Helen H -- Looger, Loren L -- Sternson, Scott M -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Sep 2;333(6047):1292-6. doi: 10.1126/science.1206606.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Janelia Farm Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, VA 20147, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21885782" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Benzamides/chemistry/metabolism/pharmacology ; Bicyclo Compounds/chemistry/metabolism/pharmacology ; Brain/cytology/physiology ; Feeding Behavior ; Female ; HEK293 Cells ; Humans ; Ion Channel Gating ; Ligand-Gated Ion Channels/chemistry/*genetics/*metabolism ; Ligands ; Membrane Potentials ; Mice ; Mice, Inbred C57BL ; Mutagenesis ; Neurons/*physiology ; Patch-Clamp Techniques ; Protein Binding ; *Protein Engineering ; Protein Structure, Tertiary ; Quinuclidines/chemistry/metabolism/pharmacology ; Receptors, Glycine/genetics/metabolism ; Receptors, Nicotinic/chemistry/genetics/metabolism ; Receptors, Serotonin, 5-HT3/genetics/metabolism ; Recombinant Fusion Proteins/chemistry/metabolism ; Small Molecule Libraries ; Stereoisomerism ; alpha7 Nicotinic Acetylcholine Receptor
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    Distinct properties of the XY pseudoautosomal region crucial for male meiosis (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-02-19
    Description: Meiosis requires that each chromosome find its homologous partner and undergo at least one crossover. X-Y chromosome segregation hinges on efficient crossing-over in a very small region of homology, the pseudoautosomal region (PAR). We find that mouse PAR DNA occupies unusually long chromosome axes, potentially as shorter chromatin loops, predicted to promote double-strand break (DSB) formation. Most PARs show delayed appearance of RAD51/DMC1 foci, which mark DSB ends, and all PARs undergo delayed DSB-mediated homologous pairing. Analysis of Spo11beta isoform-specific transgenic mice revealed that late RAD51/DMC1 foci in the PAR are genetically distinct from both early PAR foci and global foci and that late PAR foci promote efficient X-Y pairing, recombination, and male fertility. Our findings uncover specific mechanisms that surmount the unique challenges of X-Y recombination.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3151169/" 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/PMC3151169/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kauppi, Liisa -- Barchi, Marco -- Baudat, Frederic -- Romanienko, Peter J -- Keeney, Scott -- Jasin, Maria -- R01 HD040916/HD/NICHD NIH HHS/ -- R01 HD040916-01/HD/NICHD NIH HHS/ -- R01 HD040916-10/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 2011 Feb 18;331(6019):916-20. doi: 10.1126/science.1195774.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Biology Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21330546" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cell Cycle Proteins/metabolism ; Chromatin/chemistry/metabolism ; *Chromosome Pairing ; Chromosome Segregation ; *Crossing Over, Genetic ; DNA Breaks, Double-Stranded ; Endodeoxyribonucleases/genetics/*metabolism ; Female ; In Situ Hybridization, Fluorescence ; Male ; *Meiosis ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Molecular Sequence Data ; Nuclear Proteins/metabolism ; Protein Isoforms ; Rad51 Recombinase/metabolism ; X Chromosome/*physiology ; Y Chromosome/*physiology
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    The leukemogenicity of AML1-ETO is dependent on site-specific lysine acetylation (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-07-19
    Description: The chromosomal translocations found in acute myelogenous leukemia (AML) generate oncogenic fusion transcription factors with aberrant transcriptional regulatory properties. Although therapeutic targeting of most leukemia fusion proteins remains elusive, the posttranslational modifications that control their function could be targetable. We found that AML1-ETO, the fusion protein generated by the t(8;21) translocation, is acetylated by the transcriptional coactivator p300 in leukemia cells isolated from t(8;21) AML patients, and that this acetylation is essential for its self-renewal-promoting effects in human cord blood CD34(+) cells and its leukemogenicity in mouse models. Inhibition of p300 abrogates the acetylation of AML1-ETO and impairs its ability to promote leukemic transformation. Thus, lysine acetyltransferases represent a potential therapeutic target in AML.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3251012/" 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/PMC3251012/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, Lan -- Gural, Alexander -- Sun, Xiao-Jian -- Zhao, Xinyang -- Perna, Fabiana -- Huang, Gang -- Hatlen, Megan A -- Vu, Ly -- Liu, Fan -- Xu, Haiming -- Asai, Takashi -- Xu, Hao -- Deblasio, Tony -- Menendez, Silvia -- Voza, Francesca -- Jiang, Yanwen -- Cole, Philip A -- Zhang, Jinsong -- Melnick, Ari -- Roeder, Robert G -- Nimer, Stephen D -- GM62437/GM/NIGMS NIH HHS/ -- R01 GM062437/GM/NIGMS NIH HHS/ -- R01 GM062437-12/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2011 Aug 5;333(6043):765-9. doi: 10.1126/science.1201662. Epub 2011 Jul 14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Pharmacology and Chemistry Program, Sloan-Kettering Institute, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21764752" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylation ; Animals ; Cell Line ; Cell Line, Tumor ; *Cell Transformation, Neoplastic ; Core Binding Factor Alpha 2 Subunit/chemistry/*metabolism ; E1A-Associated p300 Protein/antagonists & inhibitors/*metabolism ; Fetal Blood/cytology ; Gene Expression Profiling ; Hematopoietic Stem Cells/*cytology/physiology ; Humans ; Leukemia, Myeloid, Acute/*metabolism/pathology ; Lysine/*metabolism ; Mice ; Mice, Inbred C57BL ; Mutant Proteins/metabolism ; Oncogene Proteins, Fusion/chemistry/*metabolism ; Preleukemia/metabolism/pathology ; Protein Binding ; Protein Interaction Domains and Motifs ; Protein Processing, Post-Translational ; Transcriptional Activation ; Tumor Cells, Cultured
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    Make a bid for bird biodiversity (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-01-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kettle, Chris J -- New York, N.Y. -- Science. 2011 Jan 21;331(6015):282. doi: 10.1126/science.331.6015.282-a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21252330" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; *Birds ; *Conservation of Natural Resources ; Endangered Species
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Role for piRNAs and noncoding RNA in de novo DNA methylation of the imprinted mouse Rasgrf1 locus (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-05-14
    Description: Genomic imprinting causes parental origin-specific monoallelic gene expression through differential DNA methylation established in the parental germ line. However, the mechanisms underlying how specific sequences are selectively methylated are not fully understood. We have found that the components of the PIWI-interacting RNA (piRNA) pathway are required for de novo methylation of the differentially methylated region (DMR) of the imprinted mouse Rasgrf1 locus, but not other paternally imprinted loci. A retrotransposon sequence within a noncoding RNA spanning the DMR was targeted by piRNAs generated from a different locus. A direct repeat in the DMR, which is required for the methylation and imprinting of Rasgrf1, served as a promoter for this RNA. We propose a model in which piRNAs and a target RNA direct the sequence-specific methylation of Rasgrf1.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3368507/" 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/PMC3368507/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Watanabe, Toshiaki -- Tomizawa, Shin-ichi -- Mitsuya, Kohzoh -- Totoki, Yasushi -- Yamamoto, Yasuhiro -- Kuramochi-Miyagawa, Satomi -- Iida, Naoko -- Hoki, Yuko -- Murphy, Patrick J -- Toyoda, Atsushi -- Gotoh, Kengo -- Hiura, Hitoshi -- Arima, Takahiro -- Fujiyama, Asao -- Sado, Takashi -- Shibata, Tatsuhiro -- Nakano, Toru -- Lin, Haifan -- Ichiyanagi, Kenji -- Soloway, Paul D -- Sasaki, Hiroyuki -- R01 CA098597/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2011 May 13;332(6031):848-52. doi: 10.1126/science.1203919.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Human Genetics and Department of Integrated Genetics, National Institute of Genetics, Research Organization of Information and Systems, Mishima, Shizuoka, 411-8540, Japan. toshwatatoshiakiwatanabe@gmail.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21566194" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Argonaute Proteins ; *DNA Methylation ; *Genomic Imprinting ; Male ; Mice ; Mice, Inbred C57BL ; Mitochondrial Proteins/genetics/metabolism ; Models, Genetic ; Mutation ; Phospholipase D/genetics/metabolism ; Proteins/genetics/metabolism ; RNA, Small Interfering/*genetics/metabolism ; RNA, Untranslated/*genetics/metabolism ; Repetitive Sequences, Nucleic Acid ; Retroelements ; Spermatogonia/metabolism ; Testis/embryology/metabolism ; Transcription, Genetic ; ras-GRF1/*genetics
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Paleontology. What drives biodiversity changes? (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-11-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Crampton, James -- New York, N.Y. -- Science. 2011 Nov 25;334(6059):1073-4. doi: 10.1126/science.1214829.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉GNS Science, Lower Hutt, New Zealand. j.crampton@gns.cri.nz〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22116873" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Aquatic Organisms ; *Biodiversity ; *Fossils ; *Geologic Sediments ; *Geological Phenomena ; *Seawater
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 75
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    Calibrating the end-Permian mass extinction (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-11-19
    Description: The end-Permian mass extinction was the most severe biodiversity crisis in Earth history. To better constrain the timing, and ultimately the causes of this event, we collected a suite of geochronologic, isotopic, and biostratigraphic data on several well-preserved sedimentary sections in South China. High-precision U-Pb dating reveals that the extinction peak occurred just before 252.28 +/- 0.08 million years ago, after a decline of 2 per mil ( per thousand) in delta(13)C over 90,000 years, and coincided with a delta(13)C excursion of -5 per thousand that is estimated to have lasted 〈/=20,000 years. The extinction interval was less than 200,000 years and synchronous in marine and terrestrial realms; associated charcoal-rich and soot-bearing layers indicate widespread wildfires on land. A massive release of thermogenic carbon dioxide and/or methane may have caused the catastrophic extinction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shen, Shu-zhong -- Crowley, James L -- Wang, Yue -- Bowring, Samuel A -- Erwin, Douglas H -- Sadler, Peter M -- Cao, Chang-qun -- Rothman, Daniel H -- Henderson, Charles M -- Ramezani, Jahandar -- Zhang, Hua -- Shen, Yanan -- Wang, Xiang-dong -- Wang, Wei -- Mu, Lin -- Li, Wen-zhong -- Tang, Yue-gang -- Liu, Xiao-lei -- Liu, Lu-jun -- Zeng, Yong -- Jiang, Yao-fa -- Jin, Yu-gan -- New York, N.Y. -- Science. 2011 Dec 9;334(6061):1367-72. doi: 10.1126/science.1213454. Epub 2011 Nov 17.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Nanjing 210008, China. szshen@nigpas.ac.cn〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22096103" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; Carbon Dioxide ; Carbon Isotopes ; China ; *Ecosystem ; *Extinction, Biological ; Fires ; *Fossils ; Geologic Sediments ; Invertebrates/classification ; Isotopes ; Lead ; Mass Spectrometry ; Methane ; Oceans and Seas ; Plants/classification ; Radioisotope Dilution Technique ; Radiometric Dating ; Seawater/chemistry ; Time ; Uranium ; Vertebrates/classification
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Ecology. Biodiversity and productivity (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-09-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Willig, Michael R -- New York, N.Y. -- Science. 2011 Sep 23;333(6050):1709-10. doi: 10.1126/science.1212453.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Environmental Sciences and Engineering, and Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT 06269-4210, USA. michael.willig@uconn.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21940881" target="_blank"〉PubMed〈/a〉
    Keywords: *Biodiversity ; *Biomass ; Biota ; *Ecosystem ; Plant Development ; Plant Physiological Processes ; *Plants
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Beyond predictions: biodiversity conservation in a changing climate (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-04-02
    Description: Climate change is predicted to become a major threat to biodiversity in the 21st century, but accurate predictions and effective solutions have proved difficult to formulate. Alarming predictions have come from a rather narrow methodological base, but a new, integrated science of climate-change biodiversity assessment is emerging, based on multiple sources and approaches. Drawing on evidence from paleoecological observations, recent phenological and microevolutionary responses, experiments, and computational models, we review the insights that different approaches bring to anticipating and managing the biodiversity consequences of climate change, including the extent of species' natural resilience. We introduce a framework that uses information from different sources to identify vulnerability and to support the design of conservation responses. Although much of the information reviewed is on species, our framework and conclusions are also applicable to ecosystems, habitats, ecological communities, and genetic diversity, whether terrestrial, marine, or fresh water.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dawson, Terence P -- Jackson, Stephen T -- House, Joanna I -- Prentice, Iain Colin -- Mace, Georgina M -- New York, N.Y. -- Science. 2011 Apr 1;332(6025):53-8. doi: 10.1126/science.1200303.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of the Environment, University of Dundee, Dundee DD1 4HN, Scotland, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21454781" target="_blank"〉PubMed〈/a〉
    Keywords: *Biodiversity ; *Climate Change ; *Conservation of Natural Resources
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Eosinophils sustain adipose alternatively activated macrophages associated with glucose homeostasis (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-03-26
    Description: Eosinophils are associated with helminth immunity and allergy, often in conjunction with alternatively activated macrophages (AAMs). Adipose tissue AAMs are necessary to maintain glucose homeostasis and are induced by the cytokine interleukin-4 (IL-4). Here, we show that eosinophils are the major IL-4-expressing cells in white adipose tissues of mice, and, in their absence, AAMs are greatly attenuated. Eosinophils migrate into adipose tissue by an integrin-dependent process and reconstitute AAMs through an IL-4- or IL-13-dependent process. Mice fed a high-fat diet develop increased body fat, impaired glucose tolerance, and insulin resistance in the absence of eosinophils, and helminth-induced adipose tissue eosinophilia enhances glucose tolerance. Our results suggest that eosinophils play an unexpected role in metabolic homeostasis through maintenance of adipose AAMs.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3144160/" 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/PMC3144160/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wu, Davina -- Molofsky, Ari B -- Liang, Hong-Erh -- Ricardo-Gonzalez, Roberto R -- Jouihan, Hani A -- Bando, Jennifer K -- Chawla, Ajay -- Locksley, Richard M -- 5F30DK083194-02/DK/NIDDK NIH HHS/ -- AI026918/AI/NIAID NIH HHS/ -- DK063720/DK/NIDDK NIH HHS/ -- DP1 OD006415/OD/NIH HHS/ -- F30 DK083194-03/DK/NIDDK NIH HHS/ -- R01 AI030663/AI/NIAID NIH HHS/ -- R01 DK076760/DK/NIDDK NIH HHS/ -- R01 DK081405/DK/NIDDK NIH HHS/ -- R01 HL076746/HL/NHLBI NIH HHS/ -- R37 AI026918/AI/NIAID NIH HHS/ -- R37 AI026918-24/AI/NIAID NIH HHS/ -- T32 AI007290/AI/NIAID NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Apr 8;332(6026):243-7. doi: 10.1126/science.1201475. Epub 2011 Mar 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, University of California, San Francisco, San Francisco, CA 94143-0795, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21436399" target="_blank"〉PubMed〈/a〉
    Keywords: Adipose Tissue ; Adipose Tissue, White/cytology/*immunology/*metabolism ; Animals ; Blood Glucose/*metabolism ; Cell Movement ; Dietary Fats/administration & dosage ; Eosinophilia/immunology ; Eosinophils/immunology/*physiology ; Glucose Intolerance ; Homeostasis ; Insulin/metabolism ; Insulin Resistance ; Interleukin-13/genetics/metabolism ; Interleukin-4/genetics/metabolism ; *Macrophage Activation ; Macrophages/*immunology/*metabolism ; Male ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Mice, Knockout ; Nippostrongylus ; Strongylida Infections/immunology/metabolism
    Print ISSN: 0036-8075
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    Science-policy interface: scientific input limited (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-08-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Briggs, Sue V -- Knight, Andrew T -- New York, N.Y. -- Science. 2011 Aug 5;333(6043):696-7. doi: 10.1126/science.333.6043.696-b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21817031" target="_blank"〉PubMed〈/a〉
    Keywords: *Biodiversity ; *Ecosystem ; *Policy ; Policy Making
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Conservation: model management intensity (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-11-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hayashi, Kiyotada -- New York, N.Y. -- Science. 2011 Nov 4;334(6056):593-4; author reply 594-5. doi: 10.1126/science.334.6056.593-b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22053027" target="_blank"〉PubMed〈/a〉
    Keywords: *Agriculture ; Animals ; *Biodiversity ; *Conservation of Natural Resources ; Crops, Agricultural/*growth & development ; *Ecosystem ; *Food
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Culture and biodiversity losses linked (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-01-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wu, Tong -- Petriello, Michael Anthony -- New York, N.Y. -- Science. 2011 Jan 7;331(6013):30-1; author reply 31. doi: 10.1126/science.331.6013.30-b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21212339" target="_blank"〉PubMed〈/a〉
    Keywords: *Biodiversity ; *Conservation of Natural Resources ; *Culture ; Humans ; *Population Groups
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Equilibrative nucleoside transporter 3 deficiency perturbs lysosome function and macrophage homeostasis (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-12-17
    Description: Lysosomal storage diseases (LSDs) are a group of heterogeneous disorders caused by defects in lysosomal enzymes or transporters, resulting in accumulation of undegraded macromolecules or metabolites. Macrophage numbers are expanded in several LSDs, leading to histiocytosis of unknown pathophysiology. Here, we found that mice lacking the equilibrative nucleoside transporter 3 (ENT3) developed a spontaneous and progressive macrophage-dominated histiocytosis. In the absence of ENT3, defective apoptotic cell clearance led to lysosomal nucleoside buildup, elevated intralysosomal pH, and altered macrophage function. The macrophage accumulation was partly due to increased macrophage colony-stimulating factor and receptor expression and signaling secondary to the lysosomal defects. These studies suggest a cellular and molecular basis for the development of histiocytosis in several human syndromes associated with ENT3 mutations and potentially other LSDs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hsu, Chia-Lin -- Lin, Weiyu -- Seshasayee, Dhaya -- Chen, Yung-Hsiang -- Ding, Xiao -- Lin, Zhonghua -- Suto, Eric -- Huang, Zhiyu -- Lee, Wyne P -- Park, Hyunjoo -- Xu, Min -- Sun, Mei -- Rangell, Linda -- Lutman, Jeff L -- Ulufatu, Sheila -- Stefanich, Eric -- Chalouni, Cecile -- Sagolla, Meredith -- Diehl, Lauri -- Fielder, Paul -- Dean, Brian -- Balazs, Mercedesz -- Martin, Flavius -- New York, N.Y. -- Science. 2012 Jan 6;335(6064):89-92. doi: 10.1126/science.1213682. Epub 2011 Dec 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Immunology, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22174130" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine/metabolism ; Animals ; Apoptosis ; Cell Count ; Cell Proliferation ; Cells, Cultured ; Histiocytosis/*physiopathology ; *Homeostasis ; Humans ; Hydrogen-Ion Concentration ; Listeriosis/immunology/microbiology ; Lysosomal Storage Diseases/physiopathology ; Lysosomes/*physiology/ultrastructure ; Macrophage Colony-Stimulating Factor/metabolism ; Macrophages/immunology/*physiology/ultrastructure ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Myelopoiesis ; Nucleoside Transport Proteins/genetics/*physiology ; Phagocytosis ; Receptor, Macrophage Colony-Stimulating Factor/metabolism ; Signal Transduction ; Thymocytes/immunology/physiology
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    An early T cell lineage commitment checkpoint dependent on the transcription factor Bcl11b (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-07-03
    Description: The identities of the regulators that mediate commitment of hematopoietic precursors to the T lymphocyte lineage have been unknown. The last stage of T lineage commitment in vivo involves mechanisms to suppress natural killer cell potential, to suppress myeloid and dendritic cell potential, and to silence the stem cell or progenitor cell regulatory functions that initially provide T cell receptor-independent self-renewal capability. The zinc finger transcription factor Bcl11b is T cell-specific in expression among hematopoietic cell types and is first expressed in precursors immediately before T lineage commitment. We found that Bcl11b is necessary for T lineage commitment in mice and is specifically required both to repress natural killer cell-associated genes and to down-regulate a battery of stem cell or progenitor cell genes at the pivotal stage of commitment.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2935300/" 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/PMC2935300/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Long -- Leid, Mark -- Rothenberg, Ellen V -- F06 TW002367/TW/FIC NIH HHS/ -- F06 TW002367-01A1/TW/FIC NIH HHS/ -- R01 GM060852/GM/NIGMS NIH HHS/ -- R01 GM060852-04/GM/NIGMS NIH HHS/ -- R01 GM60852/GM/NIGMS NIH HHS/ -- R33 HL089123/HL/NHLBI NIH HHS/ -- R33 HL089123-03/HL/NHLBI NIH HHS/ -- RC2 CA148278/CA/NCI NIH HHS/ -- RC2 CA148278-02/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2010 Jul 2;329(5987):89-93. doi: 10.1126/science.1188989.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biology 156-29, California Institute of Technology, Pasadena, CA 91125, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20595614" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Differentiation ; *Cell Lineage ; Cells, Cultured ; Down-Regulation ; Gene Expression Profiling ; *Gene Expression Regulation, Developmental ; Genes, T-Cell Receptor delta ; Genes, T-Cell Receptor gamma ; Killer Cells, Natural/cytology/physiology ; *Lymphopoiesis/genetics ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Precursor Cells, T-Lymphoid/cytology/immunology/*physiology ; Receptors, Antigen, T-Cell, gamma-delta/metabolism ; Receptors, Notch/metabolism ; Repressor Proteins/deficiency/genetics/*metabolism ; Signal Transduction ; T-Lymphocytes/cytology/metabolism/*physiology ; Transcription Factors/genetics/metabolism ; Tumor Suppressor Proteins/deficiency/genetics/*metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Reprogramming of T cells to natural killer-like cells upon Bcl11b deletion (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-06-12
    Description: T cells develop in the thymus and are critical for adaptive immunity. Natural killer (NK) lymphocytes constitute an essential component of the innate immune system in tumor surveillance, reproduction, and defense against microbes and viruses. Here, we show that the transcription factor Bcl11b was expressed in all T cell compartments and was indispensable for T lineage development. When Bcl11b was deleted, T cells from all developmental stages acquired NK cell properties and concomitantly lost or decreased T cell-associated gene expression. These induced T-to-natural killer (ITNK) cells, which were morphologically and genetically similar to conventional NK cells, killed tumor cells in vitro, and effectively prevented tumor metastasis in vivo. Therefore, ITNKs may represent a new cell source for cell-based therapies.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3628452/" 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/PMC3628452/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Peng -- Burke, Shannon -- Wang, Juexuan -- Chen, Xiongfeng -- Ortiz, Mariaestela -- Lee, Song-Choon -- Lu, Dong -- Campos, Lia -- Goulding, David -- Ng, Bee Ling -- Dougan, Gordon -- Huntly, Brian -- Gottgens, Bertie -- Jenkins, Nancy A -- Copeland, Neal G -- Colucci, Francesco -- Liu, Pentao -- 076962/Wellcome Trust/United Kingdom -- 077186/Wellcome Trust/United Kingdom -- G0501150/Medical Research Council/United Kingdom -- G0800784/Medical Research Council/United Kingdom -- G116/187/Medical Research Council/United Kingdom -- Biotechnology and Biological Sciences Research Council/United Kingdom -- Wellcome Trust/United Kingdom -- Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2010 Jul 2;329(5987):85-9. doi: 10.1126/science.1188063. Epub 2010 Jun 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wellcome Trust Sanger Institute, Hinxton, Cambridge CB10 1HH, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20538915" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line, Tumor ; *Cell Lineage ; Cells, Cultured ; Coculture Techniques ; Cytotoxicity, Immunologic ; Gene Deletion ; Gene Expression Profiling ; Gene Expression Regulation, Developmental ; Gene Knock-In Techniques ; Genes, T-Cell Receptor beta ; Killer Cells, Natural/cytology/immunology/*physiology ; *Lymphopoiesis/genetics ; Melanoma, Experimental/immunology/therapy ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Oligonucleotide Array Sequence Analysis ; Precursor Cells, T-Lymphoid/cytology/physiology ; Receptors, Antigen, T-Cell, alpha-beta/metabolism ; Repressor Proteins/*genetics/*metabolism ; Signal Transduction ; Stromal Cells/cytology/physiology ; T-Lymphocytes/cytology/immunology/*physiology/transplantation ; Tamoxifen/analogs & derivatives/pharmacology ; Tumor Suppressor Proteins/*genetics/*metabolism
    Print ISSN: 0036-8075
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    Patterns of diversity in marine phytoplankton (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-02-27
    Description: Spatial diversity gradients are a pervasive feature of life on Earth. We examined a global ocean circulation, biogeochemistry, and ecosystem model that indicated a decrease in phytoplankton diversity with increasing latitude, consistent with observations of many marine and terrestrial taxa. In the modeled subpolar oceans, seasonal variability of the environment led to competitive exclusion of phytoplankton with slower growth rates and lower diversity. The relatively weak seasonality of the stable subtropical and tropical oceans in the global model enabled long exclusion time scales and prolonged coexistence of multiple phytoplankton with comparable fitness. Superimposed on the decline in diversity seen from equator to pole were "hot spots" of enhanced diversity in some regions of energetic ocean circulation, which reflected lateral dispersal.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barton, Andrew D -- Dutkiewicz, Stephanie -- Flierl, Glenn -- Bragg, Jason -- Follows, Michael J -- New York, N.Y. -- Science. 2010 Mar 19;327(5972):1509-11. doi: 10.1126/science.1184961. Epub 2010 Feb 25.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA. adbarton@mit.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20185684" target="_blank"〉PubMed〈/a〉
    Keywords: *Biodiversity ; Biomass ; Climate ; *Ecosystem ; Environment ; Geography ; Models, Biological ; Oceans and Seas ; *Phytoplankton/growth & development/physiology ; Population Dynamics ; Seasons ; *Seawater
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    Alleviating neuropathic pain hypersensitivity by inhibiting PKMzeta in the anterior cingulate cortex (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-12-04
    Description: Synaptic plasticity is a key mechanism for chronic pain. It occurs at different levels of the central nervous system, including spinal cord and cortex. Studies have mainly focused on signaling proteins that trigger these plastic changes, whereas few have addressed the maintenance of plastic changes related to chronic pain. We found that protein kinase M zeta (PKMzeta) maintains pain-induced persistent changes in the mouse anterior cingulate cortex (ACC). Peripheral nerve injury caused activation of PKMzeta in the ACC, and inhibiting PKMzeta by a selective inhibitor, zeta-pseudosubstrate inhibitory peptide (ZIP), erased synaptic potentiation. Microinjection of ZIP into the ACC blocked behavioral sensitization. These results suggest that PKMzeta in the ACC acts to maintain neuropathic pain. PKMzeta could thus be a new therapeutic target for treating chronic pain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Xiang-Yao -- Ko, Hyoung-Gon -- Chen, Tao -- Descalzi, Giannina -- Koga, Kohei -- Wang, Hansen -- Kim, Susan S -- Shang, Yuze -- Kwak, Chuljung -- Park, Soo-Won -- Shim, Jaehoon -- Lee, Kyungmin -- Collingridge, Graham L -- Kaang, Bong-Kiun -- Zhuo, Min -- CIHR66975/Canadian Institutes of Health Research/Canada -- CIHR84256/Canadian Institutes of Health Research/Canada -- G0601813/Medical Research Council/United Kingdom -- Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2010 Dec 3;330(6009):1400-4. doi: 10.1126/science.1191792.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, Faculty of Medicine, Center for the Study of Pain, University of Toronto, 1 King's College Circle, Toronto, Ontario M5S 1A8, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21127255" target="_blank"〉PubMed〈/a〉
    Keywords: Adenylyl Cyclases/genetics/metabolism ; Analgesics/administration & dosage/pharmacology ; Animals ; Enzyme Inhibitors/administration & dosage/*pharmacology ; Excitatory Postsynaptic Potentials/drug effects ; Gyrus Cinguli/*enzymology/physiology ; Long-Term Potentiation ; Male ; Memory/drug effects ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Neuralgia/*drug therapy/*enzymology ; Patch-Clamp Techniques ; Peptides/administration & dosage/*pharmacology ; Peroneal Nerve/injuries ; Phosphorylation ; Protein Kinase C/*antagonists & inhibitors/*metabolism ; Receptors, AMPA/metabolism ; Sensory Receptor Cells/physiology ; Somatosensory Cortex/physiology ; Synapses/physiology ; Synaptic Transmission
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    Ecology. The barometer of life (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-04-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stuart, S N -- Wilson, E O -- McNeely, J A -- Mittermeier, R A -- Rodriguez, J P -- New York, N.Y. -- Science. 2010 Apr 9;328(5975):177. doi: 10.1126/science.1188606.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉International Union for Conservation of Nature (IUCN) Species Survival Commission, 1196 Gland, Switzerland. simon.stuart@iucn.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20378803" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; Classification ; *Conservation of Natural Resources/economics/statistics & numerical data ; *Ecology/economics/methods ; *Endangered Species/statistics & numerical data ; *Plants/classification ; Public Policy
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  • 88
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    MicroRNA-33 and the SREBP host genes cooperate to control cholesterol homeostasis (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-05-15
    Description: Proper coordination of cholesterol biosynthesis and trafficking is essential to human health. The sterol regulatory element-binding proteins (SREBPs) are key transcription regulators of genes involved in cholesterol biosynthesis and uptake. We show here that microRNAs (miR-33a/b) embedded within introns of the SREBP genes target the adenosine triphosphate-binding cassette transporter A1 (ABCA1), an important regulator of high-density lipoprotein (HDL) synthesis and reverse cholesterol transport, for posttranscriptional repression. Antisense inhibition of miR-33 in mouse and human cell lines causes up-regulation of ABCA1 expression and increased cholesterol efflux, and injection of mice on a western-type diet with locked nucleic acid-antisense oligonucleotides results in elevated plasma HDL. Our findings indicate that miR-33 acts in concert with the SREBP host genes to control cholesterol homeostasis and suggest that miR-33 may represent a therapeutic target for ameliorating cardiometabolic diseases.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3840500/" 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/PMC3840500/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Najafi-Shoushtari, S Hani -- Kristo, Fjoralba -- Li, Yingxia -- Shioda, Toshi -- Cohen, David E -- Gerszten, Robert E -- Naar, Anders M -- P30 DK034854/DK/NIDDK NIH HHS/ -- P30 DK34854/DK/NIDDK NIH HHS/ -- R01 DK048873/DK/NIDDK NIH HHS/ -- R01 DK056626/DK/NIDDK NIH HHS/ -- R01 GM071449/GM/NIGMS NIH HHS/ -- R01DK48873/DK/NIDDK NIH HHS/ -- R01DK56626/DK/NIDDK NIH HHS/ -- R01GM071449/GM/NIGMS NIH HHS/ -- R21 DK084459/DK/NIDDK NIH HHS/ -- R21DK084459/DK/NIDDK NIH HHS/ -- R37 DK048873/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2010 Jun 18;328(5985):1566-9. doi: 10.1126/science.1189123. Epub 2010 May 13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Massachusetts General Hospital Cancer Center, Charlestown, MA 02129, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20466882" target="_blank"〉PubMed〈/a〉
    Keywords: 3' Untranslated Regions ; ATP Binding Cassette Transporter 1 ; ATP-Binding Cassette Transporters/genetics/*metabolism ; Animals ; Cell Line ; Cholesterol/*metabolism ; Cholesterol, HDL/*blood ; Diet ; Gene Expression Regulation ; Homeostasis ; Humans ; Introns ; Liver/metabolism ; Macrophages/metabolism ; Mice ; Mice, Inbred C57BL ; MicroRNAs/genetics/*metabolism ; Oligonucleotides, Antisense/pharmacology ; RNA Interference ; Sterol Regulatory Element Binding Protein 1/genetics/metabolism ; Sterol Regulatory Element Binding Protein 2/genetics/metabolism ; Sterol Regulatory Element Binding Proteins/*genetics/metabolism ; Up-Regulation
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    Individuals and the variation needed for high species diversity in forest trees (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-02-27
    Description: In the past, explanations for high species diversity have been sought at the species level. Theory shows that coexistence requires substantial differences between species, but species-level data rarely provide evidence for such differences. Using data from forests in the southeastern United States, I show here that variation evident at the individual level provides for coexistence of large numbers of competitors. Variation among individuals within populations allows species to differ in their distributions of responses to the environment, despite the fact that the populations to which they belong do not differ, on average. Results are consistent with theory predicting that coexistence depends on competition being stronger within than between species, shown here by analysis of individual-level responses to environmental fluctuation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Clark, James S -- New York, N.Y. -- Science. 2010 Feb 26;327(5969):1129-32. doi: 10.1126/science.1183506.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Nicholas School of the Environment, Department of Biology, Duke University, Durham, NC 27708, USA. jimclark@duke.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20185724" target="_blank"〉PubMed〈/a〉
    Keywords: Acer/growth & development/physiology ; *Biodiversity ; Computer Simulation ; *Ecosystem ; Environment ; Nyssa/growth & development/physiology ; Population Dynamics ; Southeastern United States ; *Trees/growth & development/physiology
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    The missing link in biodiversity conservation (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-04-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beattie, Andrew -- Ehrlich, Paul -- New York, N.Y. -- Science. 2010 Apr 16;328(5976):307-8. doi: 10.1126/science.328.5976.307-c.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20395493" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Bacteria ; *Biodiversity ; *Conservation of Natural Resources ; Ecosystem ; *Invertebrates
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    Saving forests to save biodiversity (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-09-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Normile, Dennis -- New York, N.Y. -- Science. 2010 Sep 10;329(5997):1278-80. doi: 10.1126/science.329.5997.1278.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20829464" target="_blank"〉PubMed〈/a〉
    Keywords: Agriculture ; Animals ; *Biodiversity ; Biological Evolution ; Borneo ; Endangered Species ; Geological Processes ; Indonesia ; International Cooperation ; New Guinea ; *Plants ; Politics ; *Trees
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    Functional hierarchy and reversibility within the murine spermatogenic stem cell compartment (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-03-20
    Description: Stem cells support tissue maintenance by balancing self-renewal and differentiation. In mice, it is believed that a homogeneous stem cell population of single spermatogonia supports spermatogenesis, and that differentiation, which is accompanied by the formation of connected cells (cysts) of increasing length, is linear and nonreversible. We evaluated this model with the use of lineage analysis and live imaging, and found that this putative stem cell population is not homogeneous. Instead, the stem cell pool that supports steady-state spermatogenesis is contained within a subpopulation of single spermatogonia. We also found that cysts are not committed to differentiation and appear to recover stem cell potential by fragmentation, and that the fate of individual spermatogonial populations was markedly altered during regeneration after damage. Thus, there are multiple and reversible paths from stem cells to differentiation, and these may also occur in other systems.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2981100/" 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/PMC2981100/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nakagawa, Toshinori -- Sharma, Manju -- Nabeshima, Yo-ichi -- Braun, Robert E -- Yoshida, Shosei -- U54 HD042454/HD/NICHD NIH HHS/ -- U54 HD042454-080002/HD/NICHD NIH HHS/ -- U54 HD4254/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 2010 Apr 2;328(5974):62-7. doi: 10.1126/science.1182868. Epub 2010 Mar 18.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology and Tumor Biology, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20299552" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Basic Helix-Loop-Helix Transcription Factors/genetics/metabolism ; Cadherins/genetics/metabolism ; Cell Differentiation ; Cell Lineage ; Gene Expression Profiling ; Glial Cell Line-Derived Neurotrophic Factor Receptors/genetics/metabolism ; Kruppel-Like Transcription Factors/genetics/metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Models, Biological ; Nerve Tissue Proteins/genetics/metabolism ; Regeneration ; *Spermatogenesis ; Spermatogonia/*cytology/*physiology ; Stem Cell Niche ; Stem Cells/*cytology/*physiology
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    Biodiversity. Joint expedition discovers deep-sea biodiversity, new volcanoes (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-09-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Normile, Dennis -- New York, N.Y. -- Science. 2010 Sep 10;329(5997):1270-1. doi: 10.1126/science.329.5997.1270-a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20829460" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anthozoa ; *Biodiversity ; Biological Evolution ; Crustacea ; Fishes ; Geologic Sediments ; Geological Processes ; Indian Ocean ; Indonesia ; International Cooperation ; Pacific Ocean ; Philippines ; *Volcanic Eruptions
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    Ecology. Biodiversity conservation research, training, and policy in Sao Paulo (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-06-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Joly, Carlos A -- Rodrigues, Ricardo R -- Metzger, Jean Paul -- Haddad, Celio F B -- Verdade, Luciano M -- Oliveira, Mariana C -- Bolzani, Vanderlan S -- New York, N.Y. -- Science. 2010 Jun 11;328(5984):1358-9. doi: 10.1126/science.1188639.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Biolgy, Biology Institute, State University of Campinas, 13083-970 Campinas, Sao Paulo (SP), Brazil. cjoly@unicamp.br〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20538935" target="_blank"〉PubMed〈/a〉
    Keywords: *Biodiversity ; Brazil ; *Conservation of Natural Resources ; Education ; Foundations ; Periodicals as Topic ; Public Policy ; *Research
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    Calcium-permeable AMPA receptor dynamics mediate fear memory erasure (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-10-30
    Description: Traumatic fear memories can be inhibited by behavioral therapy for humans, or by extinction training in rodent models, but are prone to recur. Under some conditions, however, these treatments generate a permanent effect on behavior, which suggests that emotional memory erasure has occurred. The neural basis for such disparate outcomes is unknown. We found that a central component of extinction-induced erasure is the synaptic removal of calcium-permeable alpha-amino-3-hydroxyl-5-methyl-4-isoxazole-propionate receptors (AMPARs) in the lateral amygdala. A transient up-regulation of this form of plasticity, which involves phosphorylation of the glutamate receptor 1 subunit of the AMPA receptor, defines a temporal window in which fear memory can be degraded by behavioral experience. These results reveal a molecular mechanism for fear erasure and the relative instability of recent memory.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3001394/" 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/PMC3001394/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Clem, Roger L -- Huganir, Richard L -- F32 MH087037-01/MH/NIMH NIH HHS/ -- R01 NS036715/NS/NINDS NIH HHS/ -- R01 NS036715-11/NS/NINDS NIH HHS/ -- R01NS036715/NS/NINDS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2010 Nov 19;330(6007):1108-12. doi: 10.1126/science.1195298. Epub 2010 Oct 28.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroscience and Howard Hughes Medical Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21030604" target="_blank"〉PubMed〈/a〉
    Keywords: Amygdala/metabolism ; Animals ; Calcium/metabolism ; Conditioning (Psychology) ; *Extinction, Psychological ; Fear/*physiology ; Long-Term Synaptic Depression ; Male ; Memory/*physiology ; Mice ; Mice, Inbred C57BL ; Receptors, AMPA/*metabolism ; Receptors, Glutamate/metabolism ; Thalamus/metabolism
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    Ecology. Valuing common species (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-01-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gaston, Kevin J -- New York, N.Y. -- Science. 2010 Jan 8;327(5962):154-5. doi: 10.1126/science.1182818.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biodiversity and Macroecology Group, Department of Animal and Plant Sciences, University of Sheffield, Sheffield S10 2TN, UK. k.j.gaston@sheffi eld.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20056880" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; Biomass ; Conservation of Natural Resources ; *Ecosystem ; Plants ; Population Dynamics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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    Dlg1-PTEN interaction regulates myelin thickness to prevent damaging peripheral nerve overmyelination (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-05-08
    Description: The thickness of the myelin sheath that insulates axons is fitted for optimal nerve conduction velocity. Here, we show that, in Schwann cells, mammalian disks large homolog 1 (Dlg1) interacts with PTEN (phosphatase and tensin homolog deleted on chromosome 10) to inhibit axonal stimulation of myelination. This mechanism limits myelin sheath thickness and prevents overmyelination in mouse sciatic nerves. Removing this brake results also in myelin outfoldings and demyelination, characteristics of some peripheral neuropathies. Indeed, the Dlg1 brake is no longer functional in a mouse model of Charcot-Marie-Tooth disease. Therefore, negative regulation of myelination appears to be essential for optimization of nerve conduction velocity and myelin maintenance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cotter, Laurent -- Ozcelik, Murat -- Jacob, Claire -- Pereira, Jorge A -- Locher, Veronica -- Baumann, Reto -- Relvas, Joao B -- Suter, Ueli -- Tricaud, Nicolas -- New York, N.Y. -- Science. 2010 Jun 11;328(5984):1415-8. doi: 10.1126/science.1187735. Epub 2010 May 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Cell Biology, Department of Biology, Eidgenossische Technische Hochschule (ETH) Zurich, CH-8093 Zurich, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20448149" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing/genetics/*metabolism ; Animals ; Axons/physiology ; Coculture Techniques ; Ganglia, Spinal/cytology ; Membrane Proteins/genetics/*metabolism ; Mice ; Mice, Inbred C57BL ; Myelin Sheath/*physiology/ultrastructure ; Nerve Tissue Proteins/genetics/*metabolism ; Neural Conduction ; Neuregulin-1/metabolism ; PTEN Phosphohydrolase/*metabolism ; Proto-Oncogene Proteins c-akt/metabolism ; RNA Interference ; Rats ; Schwann Cells/*physiology ; Sciatic Nerve/physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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    Bifurcation of Toll-like receptor 9 signaling by adaptor protein 3 (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-09-18
    Description: Endosomal Toll-like receptors (TLRs) 7 and 9 recognize viral pathogens and induce signals leading to the activation of nuclear factor kappaB (NF-kappaB)-dependent proinflammatory cytokines and interferon regulatory factor 7 (IRF7)-dependent type I interferons (IFNs). Recognition of viral nucleic acids by TLR9 requires its cleavage in the endolysosomal compartment. Here, we show that TLR9 signals leading to the activation of type I IFN, but not proinflammatory cytokine genes, require TLR9 trafficking from endosomes to a specialized lysosome-related organelle. Furthermore, we identify adapter protein-3 as the protein complex responsible for the trafficking of TLR9 to this subcellular compartment. Our results reveal an intracellular mechanism for bifurcation of TLR9 signals by selective receptor trafficking within the endosomal system.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3063333/" 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/PMC3063333/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sasai, Miwa -- Linehan, Melissa M -- Iwasaki, Akiko -- AI054359/AI/NIAID NIH HHS/ -- AI064705/AI/NIAID NIH HHS/ -- AI081884/AI/NIAID NIH HHS/ -- R01 AI054359/AI/NIAID NIH HHS/ -- R01 AI054359-07/AI/NIAID NIH HHS/ -- R01 AI064705/AI/NIAID NIH HHS/ -- R01 AI064705-06/AI/NIAID NIH HHS/ -- R01 AI081884/AI/NIAID NIH HHS/ -- R01 AI081884-01A2/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2010 Sep 17;329(5998):1530-4. doi: 10.1126/science.1187029.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20847273" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Protein Complex 3/genetics/*metabolism ; Adaptor Protein Complex beta Subunits ; Animals ; Cells, Cultured ; Cytokines/genetics/immunology/metabolism ; Cytoplasmic Vesicles/metabolism ; Dendritic Cells/*immunology/metabolism ; Endosomes/metabolism ; Interferon Regulatory Factor-7/metabolism ; Interferon Type I/genetics/immunology/metabolism ; Lysosomal-Associated Membrane Protein 2/metabolism ; Macrophages/immunology ; Membrane Transport Proteins/metabolism ; Mice ; Mice, Inbred C57BL ; Myeloid Differentiation Factor 88/metabolism ; Oligodeoxyribonucleotides/immunology ; Protein Transport ; Recombinant Fusion Proteins/immunology/metabolism ; Signal Transduction ; TNF Receptor-Associated Factor 3/metabolism ; Toll-Like Receptor 9/immunology/*metabolism ; Transcriptional Activation ; Vesicle-Associated Membrane Protein 3/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 99
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    Barometer of life: sampling (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-07-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Collen, Ben -- Baillie, Jonathan E M -- New York, N.Y. -- Science. 2010 Jul 9;329(5988):140; author reply 141-2. doi: 10.1126/science.329.5988.140-a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20616248" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; Conservation of Natural Resources/*statistics & numerical data ; Endangered Species/*statistics & numerical data/trends ; Plants
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 100
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    Biodiversity is our life (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-03-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marton-Lefevre, Julia -- New York, N.Y. -- Science. 2010 Mar 5;327(5970):1179. doi: 10.1126/science.1188424.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20203016" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; Climate Change ; Conservation of Natural Resources ; Ecosystem ; Endangered Species ; Extinction, Biological ; International Cooperation
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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