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  • 1
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    Conservation concerns in the deep (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-05-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hartmann, Aaron C -- Levin, Lisa A -- New York, N.Y. -- Science. 2012 May 11;336(6082):668-9. doi: 10.1126/science.336.6082.668-a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22582242" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Aquatic Organisms ; *Ecosystem ; *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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  • 2
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    Rocket launcher mechanism of collaborative actin assembly defined by single-molecule imaging (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-06-02
    Description: Interacting sets of actin assembly factors work together in cells, but the underlying mechanisms have remained obscure. We used triple-color single-molecule fluorescence microscopy to image the tumor suppressor adenomatous polyposis coli (APC) and the formin mDia1 during filament assembly. Complexes consisting of APC, mDia1, and actin monomers initiated actin filament formation, overcoming inhibition by capping protein and profilin. Upon filament polymerization, the complexes separated, with mDia1 moving processively on growing barbed ends while APC remained at the site of nucleation. Thus, the two assembly factors directly interact to initiate filament assembly and then separate but retain independent associations with either end of the growing filament.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3613992/" 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/PMC3613992/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Breitsprecher, Dennis -- Jaiswal, Richa -- Bombardier, Jeffrey P -- Gould, Christopher J -- Gelles, Jeff -- Goode, Bruce L -- GM083137/GM/NIGMS NIH HHS/ -- GM43369/GM/NIGMS NIH HHS/ -- GM81648/GM/NIGMS NIH HHS/ -- R01 GM063691/GM/NIGMS NIH HHS/ -- R01 GM081648/GM/NIGMS NIH HHS/ -- R01 GM083137/GM/NIGMS NIH HHS/ -- R01 GM098143/GM/NIGMS NIH HHS/ -- R37 GM043369/GM/NIGMS NIH HHS/ -- T32 EB009419/EB/NIBIB NIH HHS/ -- T32 GM007596/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2012 Jun 1;336(6085):1164-8. doi: 10.1126/science.1218062.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Brandeis University, Waltham, MA 02454, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22654058" target="_blank"〉PubMed〈/a〉
    Keywords: Actin Cytoskeleton/*metabolism ; Actins/chemistry/*metabolism ; Adaptor Proteins, Signal Transducing/chemistry/*metabolism ; Adenomatous Polyposis Coli Protein/chemistry/*metabolism ; Animals ; Microscopy, Fluorescence ; Peptide Fragments/chemistry/metabolism ; Profilins/metabolism ; Protein Binding ; Protein Interaction Domains and Motifs ; Protein Multimerization ; Rabbits
    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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    Climate change. Winds of change (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-11-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Qiu, Jane -- New York, N.Y. -- Science. 2012 Nov 16;338(6109):879-81. doi: 10.1126/science.338.6109.879.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23161970" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antarctic Regions ; *Climate Change ; Global Warming ; *Ice Cover ; Spheniscidae/*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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  • 4
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    Regulatory science. Amid Europe's food fights, EFSA keeps its eyes on the evidence (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-12-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kupferschmidt, Kai -- New York, N.Y. -- Science. 2012 Nov 30;338(6111):1146-7. doi: 10.1126/science.338.6111.1146.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23197512" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Genetically Modified ; Consumer Advocacy/standards/*trends ; Consumer Organizations/standards/*trends ; *European Union ; Food Labeling/*standards ; *Food Safety ; *Food, Genetically Modified ; Guidelines as Topic/standards ; Italy ; 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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  • 5
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    Molecular biology. A new start for protein synthesis (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-06-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dever, Thomas E -- New York, N.Y. -- Science. 2012 Jun 29;336(6089):1645-6. doi: 10.1126/science.1224439.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Gene Regulation and Development, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA. tdever@nih.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22745408" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigen Presentation/*genetics ; *Codon, Initiator ; Histocompatibility Antigens Class I/*genetics/*immunology ; Humans ; Protein Biosynthesis/*genetics ; *RNA, Transfer, Leu
    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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    Natural enemies drive geographic variation in plant defenses (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-10-09
    Description: Plants defend themselves against attack by natural enemies, and these defenses vary widely across populations. However, whether communities of natural enemies are a sufficiently potent force to maintain polymorphisms in defensive traits is largely unknown. Here, we exploit the genetic resources of Arabidopsis thaliana, coupled with 39 years of field data on aphid abundance, to (i) demonstrate that geographic patterns in a polymorphic defense locus (GS-ELONG) are strongly correlated with changes in the relative abundance of two specialist aphids; and (ii) demonstrate differential selection by the two aphids on GS-ELONG, using a multigeneration selection experiment. We thereby show a causal link between variation in abundance of the two specialist aphids and the geographic pattern at GS-ELONG, which highlights the potency of natural enemies as selective forces.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zust, Tobias -- Heichinger, Christian -- Grossniklaus, Ueli -- Harrington, Richard -- Kliebenstein, Daniel J -- Turnbull, Lindsay A -- Biotechnology and Biological Sciences Research Council/United Kingdom -- New York, N.Y. -- Science. 2012 Oct 5;338(6103):116-9. doi: 10.1126/science.1226397.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Evolutionary Biology and Environmental Studies and Zurich-Basel Plant Science Center, University of Zurich, Zurich CH-8057, Switzerland. tobias.zuest@cornell.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23042895" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Biological/*genetics ; Animals ; Aphids/*physiology ; Arabidopsis/*genetics ; *Genetic Loci ; Geography ; Herbivory/*physiology ; Polymorphism, Genetic ; *Selection, Genetic ; Species Specificity
    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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    Mice lacking a Myc enhancer that includes human SNP rs6983267 are resistant to intestinal tumors (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-11-03
    Description: Multiple cancer-associated single-nucleotide polymorphisms (SNPs) have been mapped to conserved sequences within a 500-kilobase region upstream of the MYC oncogene on human chromosome 8q24. These SNPs may affect cancer development through altered regulation of MYC expression, but this hypothesis has been difficult to confirm. We generated mice deficient in Myc-335, a putative MYC regulatory element that contains rs6983267, a SNP accounting for more human cancer-related morbidity than any other genetic variant or mutation. In Myc-335 null mice, Myc transcripts were expressed in the intestinal crypts in a pattern similar to that in wild-type mice but at modestly reduced levels. The mutant mice displayed no overt phenotype but were markedly resistant to intestinal tumorigenesis induced by the APCmin mutation. These results establish that a cancer-associated SNP identified in human genome-wide association studies has a functional effect in vivo.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sur, Inderpreet Kaur -- Hallikas, Outi -- Vaharautio, Anna -- Yan, Jian -- Turunen, Mikko -- Enge, Martin -- Taipale, Minna -- Karhu, Auli -- Aaltonen, Lauri A -- Taipale, Jussi -- New York, N.Y. -- Science. 2012 Dec 7;338(6112):1360-3. doi: 10.1126/science.1228606. Epub 2012 Nov 1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Science for Life Center, Department of Biosciences and Nutrition, Karolinska Institutet, Stockholm, Sweden.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23118011" target="_blank"〉PubMed〈/a〉
    Keywords: Adenomatous Polyposis Coli/genetics/pathology ; Animals ; Cell Transformation, Neoplastic/*genetics ; Colon/metabolism/pathology ; Enhancer Elements, Genetic/*genetics ; Humans ; Ileum/metabolism/pathology ; Intestinal Neoplasms/*genetics/pathology ; Mice ; Mice, Mutant Strains ; Polymorphism, Single Nucleotide ; Proto-Oncogene Proteins c-myc/*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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  • 8
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    Conservation. Citizen involvement in the U.S. Endangered Species Act (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-08-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brosi, Berry J -- Biber, Eric G N -- New York, N.Y. -- Science. 2012 Aug 17;337(6096):802-3. doi: 10.1126/science.1220660.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Environmental Studies, Emory University, Atlanta, GA 30322, USA. bbrosi@emory.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22903999" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Databases, Factual ; Endangered Species/*legislation & jurisprudence/*statistics & numerical data ; Population ; Regression Analysis ; Turtles ; United States
    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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    Behavior. Origins of cumulative culture (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-03-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kurzban, Robert -- Barrett, H Clark -- New York, N.Y. -- Science. 2012 Mar 2;335(6072):1056-7. doi: 10.1126/science.1219232.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychology, University of Pennsylvania, Philadelphia, PA 19104, USA. kurzban@psych.upenn.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22383839" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cultural Evolution ; Female ; Humans ; *Mental Processes ; *Problem Solving ; *Social Behavior
    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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    Cell biology. A mitochondrial mystery, solved (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-07-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Divakaruni, Ajit S -- Murphy, Anne N -- New York, N.Y. -- Science. 2012 Jul 6;337(6090):41-3. doi: 10.1126/science.1225601.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Pharmacology Department, University of California-San Diego, La Jolla, CA 92093-0636, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22767917" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anion Transport Proteins/*metabolism ; Drosophila Proteins/*metabolism ; Drosophila melanogaster/*metabolism ; Humans ; Mitochondria/*metabolism ; Mitochondrial Membrane Transport Proteins/*metabolism ; Mitochondrial Membranes/*metabolism ; Mitochondrial Proteins/*metabolism ; Pyruvic Acid/*metabolism ; Saccharomyces cerevisiae/*metabolism ; Saccharomyces cerevisiae Proteins/*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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  • 11
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    A high-coverage genome sequence from an archaic Denisovan individual (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-09-01
    Description: We present a DNA library preparation method that has allowed us to reconstruct a high-coverage (30x) genome sequence of a Denisovan, an extinct relative of Neandertals. The quality of this genome allows a direct estimation of Denisovan heterozygosity indicating that genetic diversity in these archaic hominins was extremely low. It also allows tentative dating of the specimen on the basis of "missing evolution" in its genome, detailed measurements of Denisovan and Neandertal admixture into present-day human populations, and the generation of a near-complete catalog of genetic changes that swept to high frequency in modern humans since their divergence from Denisovans.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3617501/" 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/PMC3617501/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Meyer, Matthias -- Kircher, Martin -- Gansauge, Marie-Theres -- Li, Heng -- Racimo, Fernando -- Mallick, Swapan -- Schraiber, Joshua G -- Jay, Flora -- Prufer, Kay -- de Filippo, Cesare -- Sudmant, Peter H -- Alkan, Can -- Fu, Qiaomei -- Do, Ron -- Rohland, Nadin -- Tandon, Arti -- Siebauer, Michael -- Green, Richard E -- Bryc, Katarzyna -- Briggs, Adrian W -- Stenzel, Udo -- Dabney, Jesse -- Shendure, Jay -- Kitzman, Jacob -- Hammer, Michael F -- Shunkov, Michael V -- Derevianko, Anatoli P -- Patterson, Nick -- Andres, Aida M -- Eichler, Evan E -- Slatkin, Montgomery -- Reich, David -- Kelso, Janet -- Paabo, Svante -- GM100233/GM/NIGMS NIH HHS/ -- R01 GM040282/GM/NIGMS NIH HHS/ -- R01 GM100233/GM/NIGMS NIH HHS/ -- R01-GM40282/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2012 Oct 12;338(6104):222-6. doi: 10.1126/science.1224344. Epub 2012 Aug 30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Evolutionary Genetics, Max Planck Institute for Evolutionary Anthropology, D-04103 Leipzig, Germany. mmeyer@eva.mpg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22936568" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Base Sequence ; Fossils ; Gene Flow ; Gene Library ; *Genetic Variation ; Genome, Human/*genetics ; *Heterozygote ; Humans ; Molecular Sequence Data ; Neanderthals/*genetics ; Sequence Analysis, DNA
    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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  • 12
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    Development. Esophageal stem cells, where art thou? (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-09-01
    Description: 〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3762587/" 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/PMC3762587/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kushner, Jake A -- 1R01AG040110/AG/NIA NIH HHS/ -- 1R01DK064101/DK/NIDDK NIH HHS/ -- P30DK079638/DK/NIDDK NIH HHS/ -- R01 AG040110/AG/NIA NIH HHS/ -- R01 DK081469/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2012 Aug 31;337(6098):1051-2. doi: 10.1126/science.1227506.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉McNair Medical Institute, Pediatric Diabetes and Endocrinology, Baylor College of Medicine, Houston, TX 77030, USA. kushner@bcm.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22936766" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Epithelial Cells/*physiology ; Epithelium/*physiology ; Esophagus/*cytology/*physiology ; *Regeneration ; Stem Cells/*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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  • 13
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    Anthropology. Absolute dating of cave art (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-06-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hellstrom, John -- New York, N.Y. -- Science. 2012 Jun 15;336(6087):1387-8. doi: 10.1126/science.1224185.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Earth Sciences, The University of Melbourne, VIC 3010, Australia. j.hellstrom@unimelb.edu.au〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22700907" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Caves ; Engraving and Engravings/*history ; Humans ; Paintings/*history ; *Radiometric Dating
    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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  • 14
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    Antarctic Treaty System ready for a challenge (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-11-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Haward, Marcus -- Jabour, Julia -- Press, A J -- New York, N.Y. -- Science. 2012 Nov 2;338(6107):603. doi: 10.1126/science.338.6107.603.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23118165" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Conservation of Natural Resources ; *Ecosystem ; Humans
    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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  • 15
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    Invasive species. Researchers set course to blockade ballast invaders (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-05-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Strain, Daniel -- New York, N.Y. -- Science. 2012 May 11;336(6082):664-5. doi: 10.1126/science.336.6082.664.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22582239" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Ecosystem ; *Introduced Species ; *Lakes ; *Seawater ; *Ships ; United States
    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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  • 16
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    Mycology. Attack of the clones (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-08-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kupferschmidt, Kai -- New York, N.Y. -- Science. 2012 Aug 10;337(6095):636-8. doi: 10.1126/science.337.6095.636.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22879478" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biodiversity ; Body Temperature ; Crops, Agricultural/microbiology ; Food Microbiology ; *Fungi/classification/pathogenicity/physiology ; Fungicides, Industrial ; Host-Pathogen Interactions ; Humans ; Mycoses/epidemiology/*microbiology/transmission/veterinary ; Plant Diseases/microbiology ; Reproduction ; Reproduction, Asexual
    Print ISSN: 0036-8075
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  • 17
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    Comment on "Late Mousterian persistence near the Arctic Circle" (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-01-17
    Description: Slimak et al. (Reports, 13 May 2011, p. 841) reanalyzed the lithic assemblage from the northern site of Byzovaya (Russia) and concluded that it was Mousterian and produced by Neandertals. The previous interpretation of this assemblage as falling within Early Upper Paleolithic variability remains the most parsimonious explanation; pending additional fossil discoveries, there is no evidence supporting the occurrence of Neandertals at these high latitudes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zwyns, Nicolas -- Roebroeks, Wil -- McPherron, Shannon P -- Jagich, Adam -- Hublin, Jean-Jacques -- New York, N.Y. -- Science. 2012 Jan 13;335(6065):167; author reply 167. doi: 10.1126/science.1209908.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz, 04103, Leipzig, Germany. nicolas_zwyns@eva.mpg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22246757" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Archaeology ; *Hominidae ; Humans
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    Medicine. Old drug, new hope for Alzheimer's disease (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-03-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Strittmatter, Warren J -- New York, N.Y. -- Science. 2012 Mar 23;335(6075):1447-8. doi: 10.1126/science.1220725.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, Duke University Medical Center, Durham, NC 27710, USA. warren@neuro.duke.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22442467" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/*drug therapy/*metabolism ; Amyloid beta-Peptides/*metabolism ; Animals ; Apolipoproteins E/*metabolism ; Brain/*metabolism ; Male ; Tetrahydronaphthalenes/*pharmacology/*therapeutic use
    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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  • 19
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    Fear of predation slows plant-litter decomposition (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-06-16
    Description: Aboveground consumers are believed to affect ecosystem functioning by regulating the quantity and quality of plant litter entering the soil. We uncovered a pathway whereby terrestrial predators regulate ecosystem processes via indirect control over soil community function. Grasshopper herbivores stressed by spider predators have a higher body carbon-to-nitrogen ratio than do grasshoppers raised without spiders. This change in elemental content does not slow grasshopper decomposition but perturbs belowground community function, decelerating the subsequent decomposition of plant litter. This legacy effect of predation on soil community function appears to be regulated by the amount of herbivore protein entering the soil.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hawlena, Dror -- Strickland, Michael S -- Bradford, Mark A -- Schmitz, Oswald J -- New York, N.Y. -- Science. 2012 Jun 15;336(6087):1434-8. doi: 10.1126/science.1220097.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Forestry and Environmental Studies, Yale University, 370 Prospect Street, New Haven, CT 06511, USA. dror.hawlena@mail.huji.ac.il〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22700928" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacteria/metabolism ; Biomass ; Carbon/analysis/metabolism ; Ecosystem ; Energy Metabolism ; Fear ; *Food Chain ; Grasshoppers/chemistry/*physiology ; Herbivory/physiology ; Insect Proteins/analysis/metabolism ; Nitrogen/analysis/metabolism ; *Plants ; *Predatory Behavior ; Soil/chemistry ; *Soil Microbiology ; Spiders/*physiology ; *Stress, Physiological
    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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  • 20
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    Trim28 is required for epigenetic stability during mouse oocyte to embryo transition (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-03-24
    Description: Phenotypic variability in genetic disease is usually attributed to genetic background variation or environmental influence. Here, we show that deletion of a single gene, Trim28 (Kap1 or Tif1beta), from the maternal germ line alone, on an otherwise identical genetic background, results in severe phenotypic and epigenetic variability that leads to embryonic lethality. We identify early and minute epigenetic variations in blastomeres of the preimplantation embryo of these animals, suggesting that the embryonic lethality may result from the misregulation of genomic imprinting in mice lacking maternal Trim28. Our results reveal the long-range effects of a maternal gene deletion on epigenetic memory and illustrate the delicate equilibrium of maternal and zygotic factors during nuclear reprogramming.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Messerschmidt, Daniel M -- de Vries, Wilhelmine -- Ito, Mitsuteru -- Solter, Davor -- Ferguson-Smith, Anne -- Knowles, Barbara B -- 079249/Wellcome Trust/United Kingdom -- 095606/Wellcome Trust/United Kingdom -- MR/J001597/1/Medical Research Council/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2012 Mar 23;335(6075):1499-502. doi: 10.1126/science.1216154.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Mammalian Development Group, Institute of Medical Biology, Singapore.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22442485" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blastocyst/physiology ; DNA Methylation ; Down-Regulation ; *Embryo Loss ; Embryo, Mammalian/*physiology ; Embryonic Development ; *Epigenesis, Genetic ; Female ; Gene Expression Regulation, Developmental ; *Genomic Imprinting ; Insulin-Like Growth Factor II/genetics/metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Nuclear Proteins/*genetics/*physiology ; Oligonucleotide Array Sequence Analysis ; Oocytes/*physiology ; Phenotype ; RNA, Long Noncoding ; RNA, Untranslated/genetics/metabolism ; Repressor Proteins/*genetics/*physiology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 21
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    Ancestral developmental potential facilitates parallel evolution in ants (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-01-10
    Description: Complex worker caste systems have contributed to the evolutionary success of advanced ant societies; however, little is known about the developmental processes underlying their origin and evolution. We combined hormonal manipulation, gene expression, and phylogenetic analyses with field observations to understand how novel worker subcastes evolve. We uncovered an ancestral developmental potential to produce a "supersoldier" subcaste that has been actualized at least two times independently in the hyperdiverse ant genus Pheidole. This potential has been retained and can be environmentally induced throughout the genus. Therefore, the retention and induction of this potential have facilitated the parallel evolution of supersoldiers through a process known as genetic accommodation. The recurrent induction of ancestral developmental potential may facilitate the adaptive and parallel evolution of phenotypes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rajakumar, Rajendhran -- San Mauro, Diego -- Dijkstra, Michiel B -- Huang, Ming H -- Wheeler, Diana E -- Hiou-Tim, Francois -- Khila, Abderrahman -- Cournoyea, Michael -- Abouheif, Ehab -- New York, N.Y. -- Science. 2012 Jan 6;335(6064):79-82. doi: 10.1126/science.1211451.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, McGill University, 1205 Avenue Dr. Penfield, Montreal, Quebec, Canada, H3A 1B1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22223805" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Ants/*genetics/growth & development/physiology ; *Biological Evolution ; Environment ; Female ; Genes, Insect ; Larva/growth & development ; Male ; Methoprene/pharmacology ; Molecular Sequence Data ; Phenotype ; Phylogeny ; Selection, Genetic ; Social Behavior ; Wings, Animal/growth & development
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 22
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    Ecology. Amazonian extinction debts (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-07-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rangel, Thiago F -- New York, N.Y. -- Science. 2012 Jul 13;337(6091):162-3. doi: 10.1126/science.1224819.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ecology, Federal University of Goias, CxP. 131, Goiania, Goias, Brazil 74970-001. thiagorangel@icb.ufg.br〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22798589" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Conservation of Natural Resources ; *Ecosystem ; *Extinction, Biological ; *Trees ; *Vertebrates
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 23
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    MARF1 regulates essential oogenic processes in mice (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-03-24
    Description: Development of fertilization-competent oocytes depends on integrated processes controlling meiosis, cytoplasmic development, and maintenance of genomic integrity. We show that meiosis arrest female 1 (MARF1) is required for these processes in mammalian oocytes. Mutations of Marf1 cause female infertility characterized by up-regulation of a cohort of transcripts, increased retrotransposon expression, defective cytoplasmic maturation, and meiotic arrest. Up-regulation of protein phosphatase 2 catalytic subunit (PPP2CB) is key to the meiotic arrest phenotype. Moreover, Iap and Line1 retrotransposon messenger RNAs are also up-regulated, and, concomitantly, DNA double-strand breaks are elevated in mutant oocytes. Therefore MARF1, by suppressing levels of specific transcripts, is an essential regulator of important oogenic processes leading to female fertility and the development of healthy offspring.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3612990/" 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/PMC3612990/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Su, You-Qiang -- Sugiura, Koji -- Sun, Fengyun -- Pendola, Janice K -- Cox, Gregory A -- Handel, Mary Ann -- Schimenti, John C -- Eppig, John J -- CA34196/CA/NCI NIH HHS/ -- HD42137/HD/NICHD NIH HHS/ -- P01 HD042137/HD/NICHD NIH HHS/ -- P30 CA034196/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2012 Mar 23;335(6075):1496-9. doi: 10.1126/science.1214680.〈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/22442484" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cell Cycle Proteins/chemistry/genetics/*metabolism ; DNA Breaks, Double-Stranded ; Embryonic Development ; Female ; *Fertility ; Meiosis ; Mice ; Molecular Sequence Data ; Mutation ; Oocytes/*physiology ; *Oogenesis ; Phenotype ; Protein Phosphatase 2/genetics/metabolism ; Protein Structure, Tertiary ; RNA, Messenger/genetics/metabolism ; Retroelements ; Transcription, Genetic ; Transcriptome ; Up-Regulation
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  • 24
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    The ancient drug salicylate directly activates AMP-activated protein kinase (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-04-21
    Description: Salicylate, a plant product, has been in medicinal use since ancient times. More recently, it has been replaced by synthetic derivatives such as aspirin and salsalate, both of which are rapidly broken down to salicylate in vivo. At concentrations reached in plasma after administration of salsalate or of aspirin at high doses, salicylate activates adenosine monophosphate-activated protein kinase (AMPK), a central regulator of cell growth and metabolism. Salicylate binds at the same site as the synthetic activator A-769662 to cause allosteric activation and inhibition of dephosphorylation of the activating phosphorylation site, threonine-172. In AMPK knockout mice, effects of salicylate to increase fat utilization and to lower plasma fatty acids in vivo were lost. Our results suggest that AMPK activation could explain some beneficial effects of salsalate and aspirin in humans.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3399766/" 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/PMC3399766/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hawley, Simon A -- Fullerton, Morgan D -- Ross, Fiona A -- Schertzer, Jonathan D -- Chevtzoff, Cyrille -- Walker, Katherine J -- Peggie, Mark W -- Zibrova, Darya -- Green, Kevin A -- Mustard, Kirsty J -- Kemp, Bruce E -- Sakamoto, Kei -- Steinberg, Gregory R -- Hardie, D Grahame -- 080982/Wellcome Trust/United Kingdom -- 097726/Wellcome Trust/United Kingdom -- MC_U127088492/Medical Research Council/United Kingdom -- Canadian Institutes of Health Research/Canada -- Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2012 May 18;336(6083):918-22. doi: 10.1126/science.1215327. Epub 2012 Apr 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Cell Signalling and Immunology, College of Life Sciences, University of Dundee, Dundee DD1 5EH, Scotland, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22517326" target="_blank"〉PubMed〈/a〉
    Keywords: AMP-Activated Protein Kinases/genetics/*metabolism ; Amino Acid Substitution ; Animals ; Aspirin/pharmacology ; Binding Sites ; Carbohydrate Metabolism/drug effects ; Cell Line ; Enzyme Activation ; Enzyme Activators/pharmacology ; HEK293 Cells ; Humans ; Lipid Metabolism/drug effects ; Liver/drug effects/metabolism ; Mice ; Mice, Knockout ; Mutation ; Oxygen Consumption/drug effects ; Phosphorylation ; Pyrones/pharmacology ; Rats ; Salicylates/blood/*metabolism/*pharmacology ; Thiophenes/pharmacology
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    Ecology. Insecticide resistance after Silent spring (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-09-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Heckel, David G -- New York, N.Y. -- Science. 2012 Sep 28;337(6102):1612-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Entomology, Max Planck Institute for Chemical Ecology, Jena, Germany. heckel@ice.mpg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23019637" target="_blank"〉PubMed〈/a〉
    Keywords: ATP-Binding Cassette Transporters/genetics ; Aedes/drug effects/genetics ; Animals ; Aphids/drug effects/genetics ; Bacterial Toxins/genetics ; Carboxylesterase/genetics ; Crops, Agricultural/genetics/parasitology ; Culex/drug effects/genetics ; Cytochrome P-450 Enzyme System/genetics ; Insect Control/*methods ; Insecticide Resistance/*genetics ; Insecticides/*pharmacology ; Plants, Genetically Modified/genetics/parasitology ; Protein Precursors/genetics ; Tetranychidae/drug effects
    Print ISSN: 0036-8075
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    Airborne transmission of influenza A/H5N1 virus between ferrets (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-06-23
    Description: Highly pathogenic avian influenza A/H5N1 virus can cause morbidity and mortality in humans but thus far has not acquired the ability to be transmitted by aerosol or respiratory droplet ("airborne transmission") between humans. To address the concern that the virus could acquire this ability under natural conditions, we genetically modified A/H5N1 virus by site-directed mutagenesis and subsequent serial passage in ferrets. The genetically modified A/H5N1 virus acquired mutations during passage in ferrets, ultimately becoming airborne transmissible in ferrets. None of the recipient ferrets died after airborne infection with the mutant A/H5N1 viruses. Four amino acid substitutions in the host receptor-binding protein hemagglutinin, and one in the polymerase complex protein basic polymerase 2, were consistently present in airborne-transmitted viruses. The transmissible viruses were sensitive to the antiviral drug oseltamivir and reacted well with antisera raised against H5 influenza vaccine strains. Thus, avian A/H5N1 influenza viruses can acquire the capacity for airborne transmission between mammals without recombination in an intermediate host and therefore constitute a risk for human pandemic influenza.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Herfst, Sander -- Schrauwen, Eefje J A -- Linster, Martin -- Chutinimitkul, Salin -- de Wit, Emmie -- Munster, Vincent J -- Sorrell, Erin M -- Bestebroer, Theo M -- Burke, David F -- Smith, Derek J -- Rimmelzwaan, Guus F -- Osterhaus, Albert D M E -- Fouchier, Ron A M -- DP1-OD000490-01/OD/NIH HHS/ -- HHSN266200700010C/PHS HHS/ -- New York, N.Y. -- Science. 2012 Jun 22;336(6088):1534-41. doi: 10.1126/science.1213362.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Virology, Erasmus Medical Center, Rotterdam, The Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22723413" target="_blank"〉PubMed〈/a〉
    Keywords: Air Microbiology ; Amino Acid Substitution ; Animals ; Antiviral Agents/pharmacology ; Containment of Biohazards ; Disease Models, Animal ; Female ; *Ferrets ; Hemagglutinin Glycoproteins, Influenza ; Virus/chemistry/genetics/immunology/metabolism ; Humans ; Immune Sera ; Influenza A Virus, H5N1 Subtype/drug effects/*genetics/*pathogenicity/physiology ; Influenza in Birds/epidemiology/virology ; Influenza, Human/epidemiology/transmission/*virology ; Molecular Sequence Data ; Mutagenesis, Site-Directed ; Mutation ; Orthomyxoviridae Infections/transmission/*virology ; Oseltamivir/pharmacology ; Pandemics ; Poultry ; RNA Replicase/chemistry/genetics ; Reassortant Viruses/pathogenicity ; Receptors, Virus/metabolism ; Respiratory System/*virology ; Reverse Genetics ; Serial Passage ; Sialic Acids/metabolism ; Viral Proteins/chemistry/genetics ; Virulence ; Virus Replication ; Virus Shedding
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  • 27
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    Elfn1 regulates target-specific release probability at CA1-interneuron synapses (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-10-09
    Description: Although synaptic transmission may be unidirectional, the establishment of synaptic connections with specific properties can involve bidirectional signaling. Pyramidal neurons in the hippocampus form functionally distinct synapses onto two types of interneurons. Excitatory synapses onto oriens-lacunosum moleculare (O-LM) interneurons are facilitating and have a low release probability, whereas synapses onto parvalbumin interneurons are depressing and have a high release probability. Here, we show that the extracellular leucine-rich repeat fibronectin containing 1 (Elfn1) protein is selectively expressed by O-LM interneurons and regulates presynaptic release probability to direct the formation of highly facilitating pyramidal-O-LM synapses. Thus, postsynaptic expression of Elfn1 in O-LM interneurons regulates presynaptic release probability, which confers target-specific synaptic properties to pyramidal cell axons.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sylwestrak, Emily L -- Ghosh, Anirvan -- R01 NS067216/NS/NINDS NIH HHS/ -- R01NS067216/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2012 Oct 26;338(6106):536-40. doi: 10.1126/science.1222482. Epub 2012 Oct 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Neurobiology Section, Division of Biological Sciences, University of California, San Diego, La Jolla, CA 92093-0366, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23042292" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/metabolism ; CA1 Region, Hippocampal/*metabolism ; Cells, Cultured ; Gene Knockdown Techniques ; Green Fluorescent Proteins/genetics/metabolism ; HEK293 Cells ; Humans ; Interneurons/*metabolism ; Mice ; Nerve Tissue Proteins/genetics/*metabolism ; RNA, Small Interfering/metabolism ; Rats ; Rats, Inbred LEC ; Synapses/genetics/*metabolism ; Synaptic Transmission
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 28
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    Rapamycin-induced insulin resistance is mediated by mTORC2 loss and uncoupled from longevity (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-03-31
    Description: Rapamycin, an inhibitor of mechanistic target of rapamycin complex 1 (mTORC1), extends the life spans of yeast, flies, and mice. Calorie restriction, which increases life span and insulin sensitivity, is proposed to function by inhibition of mTORC1, yet paradoxically, chronic administration of rapamycin substantially impairs glucose tolerance and insulin action. We demonstrate that rapamycin disrupted a second mTOR complex, mTORC2, in vivo and that mTORC2 was required for the insulin-mediated suppression of hepatic gluconeogenesis. Further, decreased mTORC1 signaling was sufficient to extend life span independently from changes in glucose homeostasis, as female mice heterozygous for both mTOR and mLST8 exhibited decreased mTORC1 activity and extended life span but had normal glucose tolerance and insulin sensitivity. Thus, mTORC2 disruption is an important mediator of the effects of rapamycin in vivo.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3324089/" 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/PMC3324089/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lamming, Dudley W -- Ye, Lan -- Katajisto, Pekka -- Goncalves, Marcus D -- Saitoh, Maki -- Stevens, Deanna M -- Davis, James G -- Salmon, Adam B -- Richardson, Arlan -- Ahima, Rexford S -- Guertin, David A -- Sabatini, David M -- Baur, Joseph A -- 1F32AG032833-01A1/AG/NIA NIH HHS/ -- CA129105/CA/NCI NIH HHS/ -- F32 AG032833/AG/NIA NIH HHS/ -- P30DK19525/DK/NIDDK NIH HHS/ -- R01 CA129105/CA/NCI NIH HHS/ -- R01 CA129105-05/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2012 Mar 30;335(6076):1638-43. doi: 10.1126/science.1215135.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22461615" target="_blank"〉PubMed〈/a〉
    Keywords: Adipose Tissue, White/metabolism ; Animals ; Carrier Proteins/genetics/metabolism ; Female ; Gluconeogenesis ; Glucose/metabolism ; Glucose Clamp Technique ; Homeostasis ; Insulin/administration & dosage/blood ; *Insulin Resistance ; Liver/metabolism ; *Longevity ; Male ; Mice ; Mice, Inbred C57BL ; Multiprotein Complexes ; Muscle, Skeletal/metabolism ; Phosphorylation ; Proteins/antagonists & inhibitors/metabolism ; Proto-Oncogene Proteins c-akt/metabolism ; Signal Transduction ; Sirolimus/*pharmacology ; TOR Serine-Threonine Kinases/genetics/metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    A logic-gated nanorobot for targeted transport of molecular payloads (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-02-22
    Description: We describe an autonomous DNA nanorobot capable of transporting molecular payloads to cells, sensing cell surface inputs for conditional, triggered activation, and reconfiguring its structure for payload delivery. The device can be loaded with a variety of materials in a highly organized fashion and is controlled by an aptamer-encoded logic gate, enabling it to respond to a wide array of cues. We implemented several different logical AND gates and demonstrate their efficacy in selective regulation of nanorobot function. As a proof of principle, nanorobots loaded with combinations of antibody fragments were used in two different types of cell-signaling stimulation in tissue culture. Our prototype could inspire new designs with different selectivities and biologically active payloads for cell-targeting tasks.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Douglas, Shawn M -- Bachelet, Ido -- Church, George M -- New York, N.Y. -- Science. 2012 Feb 17;335(6070):831-4. doi: 10.1126/science.1214081.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wyss Institute for Biologically Inspired Engineering, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22344439" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD/immunology ; Antigens, Differentiation, Myelomonocytic/immunology ; Cell Line, Tumor ; *DNA/chemistry ; Histocompatibility Antigens Class I/immunology ; Humans ; Immunoglobulin Fragments/immunology ; Metal Nanoparticles ; Mice ; Molecular Conformation ; *Nanostructures ; *Robotics ; Sialic Acid Binding Ig-like Lectin 3 ; *Signal Transduction
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Mysteries of the brain. How are memories retrieved? (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-10-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, Greg -- New York, N.Y. -- Science. 2012 Oct 5;338(6103):30-1. doi: 10.1126/science.338.6103.30-b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23042864" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/*physiology ; Hippocampus/physiology ; Humans ; *Mental Recall ; Neuronal Plasticity ; Rats
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Secreted kinase phosphorylates extracellular proteins that regulate biomineralization (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-05-15
    Description: Protein phosphorylation is a fundamental mechanism regulating nearly every aspect of cellular life. Several secreted proteins are phosphorylated, but the kinases responsible are unknown. We identified a family of atypical protein kinases that localize within the Golgi apparatus and are secreted. Fam20C appears to be the Golgi casein kinase that phosphorylates secretory pathway proteins within S-x-E motifs. Fam20C phosphorylates the caseins and several secreted proteins implicated in biomineralization, including the small integrin-binding ligand, N-linked glycoproteins (SIBLINGs). Consequently, mutations in Fam20C cause an osteosclerotic bone dysplasia in humans known as Raine syndrome. Fam20C is thus a protein kinase dedicated to the phosphorylation of extracellular proteins.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3754843/" 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/PMC3754843/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tagliabracci, Vincent S -- Engel, James L -- Wen, Jianzhong -- Wiley, Sandra E -- Worby, Carolyn A -- Kinch, Lisa N -- Xiao, Junyu -- Grishin, Nick V -- Dixon, Jack E -- DK018024-37/DK/NIDDK NIH HHS/ -- DK018849-36/DK/NIDDK NIH HHS/ -- GM094575/GM/NIGMS NIH HHS/ -- R01 DK018849/DK/NIDDK NIH HHS/ -- R37 DK018024/DK/NIDDK NIH HHS/ -- T32 CA009523/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2012 Jun 1;336(6085):1150-3. doi: 10.1126/science.1217817. Epub 2012 May 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, University of California, San Diego, La Jolla, CA 92093-0721, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22582013" target="_blank"〉PubMed〈/a〉
    Keywords: Abnormalities, Multiple/genetics/metabolism ; Amino Acid Motifs ; Amino Acid Sequence ; Animals ; Calcification, Physiologic ; Casein Kinase I ; Casein Kinases/metabolism ; Caseins/*metabolism ; Cattle ; Cell Line, Tumor ; Cleft Palate/genetics/metabolism ; Exophthalmos/genetics/metabolism ; Extracellular Matrix Proteins/chemistry/genetics/*metabolism/secretion ; Glycoproteins/metabolism ; Golgi Apparatus/*enzymology ; HEK293 Cells ; HeLa Cells ; Humans ; Microcephaly/genetics/metabolism ; Milk/enzymology ; Molecular Sequence Data ; Mutation ; Osteopontin ; Osteosclerosis/genetics/metabolism ; Phosphorylation ; Protein Sorting Signals ; Recombinant Fusion Proteins/chemistry/metabolism/secretion ; *Secretory Pathway ; Substrate Specificity
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    Cell biology. Heart brakes (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-09-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Burghardt, Thomas P -- Ajtai, Katalin -- R01 AR049277/AR/NIAMS NIH HHS/ -- R01 HL095572/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2012 Sep 7;337(6099):1182-3. doi: 10.1126/science.1227943.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biochemistry and Molecular Biology, Mayo Clinic Rochester, Rochester, MN 55905, USA. burghardt@mayo.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22955824" target="_blank"〉PubMed〈/a〉
    Keywords: Actin Cytoskeleton/*physiology ; Animals ; Carrier Proteins/*metabolism ; *Myocardial Contraction ; Myocardium/*metabolism ; Myofibrils/*metabolism ; Myosins/*metabolism
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    Materials science. Small but extremely tough (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-06-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tanner, K Elizabeth -- New York, N.Y. -- Science. 2012 Jun 8;336(6086):1237-8. doi: 10.1126/science.1222642.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Engineering, University of Glasgow, Glasgow, UK. elizabeth.tanner@glasgow.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22679085" target="_blank"〉PubMed〈/a〉
    Keywords: Animal Structures/*anatomy & histology ; Animals ; Crustacea/*anatomy & histology/*physiology
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    A single progenitor population switches behavior to maintain and repair esophageal epithelium (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-07-24
    Description: Diseases of the esophageal epithelium (EE), such as reflux esophagitis and cancer, are rising in incidence. Despite this, the cellular behaviors underlying EE homeostasis and repair remain controversial. Here, we show that in mice, EE is maintained by a single population of cells that divide stochastically to generate proliferating and differentiating daughters with equal probability. In response to challenge with all-trans retinoic acid (atRA), the balance of daughter cell fate is unaltered, but the rate of cell division increases. However, after wounding, cells reversibly switch to producing an excess of proliferating daughters until the wound has closed. Such fate-switching enables a single progenitor population to both maintain and repair tissue without the need for a "reserve" slow-cycling stem cell pool.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3527005/" 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/PMC3527005/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Doupe, David P -- Alcolea, Maria P -- Roshan, Amit -- Zhang, Gen -- Klein, Allon M -- Simons, Benjamin D -- Jones, Philip H -- 079249/Wellcome Trust/United Kingdom -- 092096/Wellcome Trust/United Kingdom -- G0601740/Medical Research Council/United Kingdom -- G0700600/1/National Centre for the Replacement, Refinement and Reduction of Animals in Research/United Kingdom -- G0800784/Medical Research Council/United Kingdom -- MC_U105370181/Medical Research Council/United Kingdom -- U.1053.00.010(70181)/Medical Research Council/United Kingdom -- Medical Research Council/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2012 Aug 31;337(6098):1091-3. doi: 10.1126/science.1218835. Epub 2012 Jul 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council (MRC) Cancer Cell Unit, Hutchison-MRC Research Centre, Cambridge, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22821983" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biomarkers/analysis ; Cell Differentiation/drug effects ; Cell Division/drug effects ; Cell Proliferation/drug effects ; Cells, Cultured ; Doxycycline/pharmacology ; Epithelial Cells/*physiology ; Epithelium/drug effects/metabolism/*physiology ; Esophagus/*cytology/*physiology ; Green Fluorescent Proteins/biosynthesis ; Histones/biosynthesis ; Mice ; Mice, Inbred C57BL ; Recombinant Fusion Proteins/biosynthesis ; *Regeneration ; Stem Cells/metabolism/*physiology
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    Locally synchronized synaptic inputs (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-01-24
    Description: Synaptic inputs on dendrites are nonlinearly converted to action potential outputs, yet the spatiotemporal patterns of dendritic activation remain to be elucidated at single-synapse resolution. In rodents, we optically imaged synaptic activities from hundreds of dendritic spines in hippocampal and neocortical pyramidal neurons ex vivo and in vivo. Adjacent spines were frequently synchronized in spontaneously active networks, thereby forming dendritic foci that received locally convergent inputs from presynaptic cell assemblies. This precise subcellular geometry manifested itself during N-methyl-D-aspartate receptor-dependent circuit remodeling. Thus, clustered synaptic plasticity is innately programmed to compartmentalize correlated inputs along dendrites and may reify nonlinear synaptic integration.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Takahashi, Naoya -- Kitamura, Kazuo -- Matsuo, Naoki -- Mayford, Mark -- Kano, Masanobu -- Matsuki, Norio -- Ikegaya, Yuji -- New York, N.Y. -- Science. 2012 Jan 20;335(6066):353-6. doi: 10.1126/science.1210362.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Chemical Pharmacology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22267814" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; CA3 Region, Hippocampal/cytology/physiology ; Calcium/metabolism ; Dendritic Spines/*physiology/ultrastructure ; Excitatory Postsynaptic Potentials ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Nerve Net/*physiology ; Neuronal Plasticity ; Organ Culture Techniques ; Patch-Clamp Techniques ; Pyramidal Cells/*physiology ; Rats ; Rats, Wistar ; Receptors, N-Methyl-D-Aspartate/antagonists & inhibitors/metabolism ; Somatosensory Cortex/cytology/physiology ; Synapses/*physiology
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    Mutations in the neverland gene turned Drosophila pachea into an obligate specialist species (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-09-29
    Description: Most living species exploit a limited range of resources. However, little is known about how tight associations build up during evolution between such specialist species and the hosts they use. We examined the dependence of Drosophila pachea on its single host, the senita cactus. Several amino acid changes in the Neverland oxygenase rendered D. pachea unable to transform cholesterol into 7-dehydrocholesterol (the first reaction in the steroid hormone biosynthetic pathway in insects) and thus made D. pachea dependent on the uncommon sterols of its host plant. The neverland mutations increase survival on the cactus's unusual sterols and are in a genomic region that faced recent positive selection. This study illustrates how relatively few genetic changes in a single gene may restrict the ecological niche of a species.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4729188/" 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/PMC4729188/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lang, Michael -- Murat, Sophie -- Clark, Andrew G -- Gouppil, Geraldine -- Blais, Catherine -- Matzkin, Luciano M -- Guittard, Emilie -- Yoshiyama-Yanagawa, Takuji -- Kataoka, Hiroshi -- Niwa, Ryusuke -- Lafont, Rene -- Dauphin-Villemant, Chantal -- Orgogozo, Virginie -- AI064950/AI/NIAID NIH HHS/ -- R01 AI064950/AI/NIAID NIH HHS/ -- R01 HG003229/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2012 Sep 28;337(6102):1658-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉CNRS UMR7592, Universite Paris Diderot, Sorbonne Paris Cite, Institut Jacques Monod, Paris, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23019649" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cactaceae/*metabolism ; Cholesterol/metabolism ; Conserved Sequence ; Dehydrocholesterols/metabolism ; Drosophila/genetics/*physiology ; Drosophila Proteins/chemistry/*genetics/metabolism ; *Food Chain ; Molecular Sequence Data ; *Mutation ; Oxygenases/chemistry/*genetics/metabolism ; Protein Conformation ; RNA Interference ; Selection, Genetic ; Species Specificity
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    Comment on "A diverse assemblage of Late Cretaceous dinosaur and bird feathers from Canadian amber" (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-02-22
    Description: McKellar et al. (Reports, 16 September 2011, p. 1619) analyzed Late Cretaceous amber specimens from Canada and identified some filaments as dinosaurian protofeathers. We argue that their analysis and data do not provide sufficient evidence to conclude that such filaments are feather-like structures. Further investigation, including destructive sampling, must be carried out for more convincing conclusions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dove, Carla J -- Straker, Lorian C -- New York, N.Y. -- Science. 2012 Feb 17;335(6070):796; author reply 796. doi: 10.1126/science.1216208.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Smithsonian Institution, National Museum of Natural History, Division of Birds, Washington, DC 20013-7012, USA. dovec@si.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22344430" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Birds/*anatomy & histology ; Dinosaurs/*anatomy & histology ; Feathers/*anatomy & histology ; *Fossils ; *Pigmentation
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    Ecology. Integrating the captive and the wild (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-12-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Redford, Kent H -- Jensen, Deborah B -- Breheny, James J -- New York, N.Y. -- Science. 2012 Nov 30;338(6111):1157-8. doi: 10.1126/science.1228899.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Archipelago Consulting, Irvington, NY 10533, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23197520" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Animals, Wild ; *Animals, Zoo ; Climate Change ; Conservation of Natural Resources/*methods ; Endangered Species ; *Extinction, Biological
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    Membrane fusion intermediates via directional and full assembly of the SNARE complex (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-06-02
    Description: Cellular membrane fusion is thought to proceed through intermediates including docking of apposed lipid bilayers, merging of proximal leaflets to form a hemifusion diaphragm, and fusion pore opening. A membrane-bridging four-helix complex of soluble N-ethylmaleimide-sensitive factor attachment protein receptors (SNAREs) mediates fusion. However, how assembly of the SNARE complex generates docking and other fusion intermediates is unknown. Using a cell-free reaction, we identified intermediates visually and then arrested the SNARE fusion machinery when fusion was about to begin. Partial and directional assembly of SNAREs tightly docked bilayers, but efficient fusion and an extended form of hemifusion required assembly beyond the core complex to the membrane-connecting linkers. We propose that straining of lipids at the edges of an extended docking zone initiates fusion.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3677693/" 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/PMC3677693/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hernandez, Javier M -- Stein, Alexander -- Behrmann, Elmar -- Riedel, Dietmar -- Cypionka, Anna -- Farsi, Zohreh -- Walla, Peter J -- Raunser, Stefan -- Jahn, Reinhard -- 3P01GM072694-05S1/GM/NIGMS NIH HHS/ -- P01 GM072694/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2012 Jun 22;336(6088):1581-4. doi: 10.1126/science.1221976. Epub 2012 May 31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, Max Planck Institute for Biophysical Chemistry, Gottingen, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22653732" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Lipid Bilayers/chemistry/*metabolism ; *Liposomes/chemistry/metabolism ; *Membrane Fusion ; Protein Binding ; Protein Conformation ; Rats ; SNARE Proteins/chemistry/*metabolism ; Vesicle-Associated Membrane Protein 2/metabolism
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    Neuroscience. Revitalizing remyelination--the answer is circulating (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-04-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Redmond, Stephanie A -- Chan, Jonah R -- R01 NS062796/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2012 Apr 13;336(6078):161-2. doi: 10.1126/science.1221689.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, University of California, San Francisco, CA 94158, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22499927" target="_blank"〉PubMed〈/a〉
    Keywords: Aging ; Animals ; Demyelinating Diseases/*physiopathology/therapy ; Macrophages/*physiology ; Mice ; Myelin Sheath/*physiology ; Oligodendroglia/*physiology ; Parabiosis ; Phagocytosis ; Spinal Cord Diseases/*physiopathology/therapy
    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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    Biochemistry. Visualizing the influenza genome (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-11-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tao, Yitzhi Jane -- Zheng, Wenjie -- New York, N.Y. -- Science. 2012 Dec 21;338(6114):1545-6. doi: 10.1126/science.1231588. Epub 2012 Nov 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Cell Biology, Rice University, Houston, TX 77005, USA. ytao@rice.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23180772" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Influenza A Virus, H1N1 Subtype/*chemistry/*ultrastructure ; RNA Replicase/*chemistry ; RNA, Viral/*chemistry ; Ribonucleoproteins/*chemistry ; Viral Proteins/*chemistry ; Virion/*chemistry ; *Virus Replication
    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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    Hepcidin and the iron-infection axis (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-11-10
    Description: Iron lies at the center of a battle for nutritional resource between higher organisms and their microbial pathogens. The iron status of the human host affects the pathogenicity of numerous infections including malaria, HIV-1, and tuberculosis. Hepcidin, an antimicrobial-like peptide hormone, has emerged as the master regulator of iron metabolism. Hepcidin controls the absorption of dietary iron and the distribution of iron among cell types in the body, and its synthesis is regulated by both iron and innate immunity. We describe how hepcidin integrates signals from diverse physiological inputs, forming a key molecular bridge between iron trafficking and response to infection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Drakesmith, Hal -- Prentice, Andrew M -- G0700844/Medical Research Council/United Kingdom -- G0901149/Medical Research Council/United Kingdom -- MC-A760-5QX00/Medical Research Council/United Kingdom -- MC_U123292699/Medical Research Council/United Kingdom -- MC_U123292700/Medical Research Council/United Kingdom -- MC_U123292701/Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2012 Nov 9;338(6108):768-72. doi: 10.1126/science.1224577.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Immunology Group and Medical Research Council (MRC) Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK. alexander.drakesmith@ndm.ox.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23139325" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antimicrobial Cationic Peptides/*metabolism ; Bacteria/metabolism/pathogenicity ; Hepcidins ; Host-Pathogen Interactions ; Humans ; *Immunity, Innate ; Infection/*immunology/*metabolism/microbiology ; Inflammation/metabolism ; Iron/*metabolism ; Iron, Dietary/metabolism ; Leukocytes/metabolism ; Liver/metabolism ; Macrophages/metabolism ; Signal Transduction
    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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    Identification and functional expression of the mitochondrial pyruvate carrier (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-05-26
    Description: The transport of pyruvate, the end product of glycolysis, into mitochondria is an essential process that provides the organelle with a major oxidative fuel. Although the existence of a specific mitochondrial pyruvate carrier (MPC) has been anticipated, its molecular identity remained unknown. We report that MPC is a heterocomplex formed by two members of a family of previously uncharacterized membrane proteins that are conserved from yeast to mammals. Members of the MPC family were found in the inner mitochondrial membrane, and yeast mutants lacking MPC proteins showed severe defects in mitochondrial pyruvate uptake. Coexpression of mouse MPC1 and MPC2 in Lactococcus lactis promoted transport of pyruvate across the membrane. These observations firmly establish these proteins as essential components of the MPC.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Herzig, Sebastien -- Raemy, Etienne -- Montessuit, Sylvie -- Veuthey, Jean-Luc -- Zamboni, Nicola -- Westermann, Benedikt -- Kunji, Edmund R S -- Martinou, Jean-Claude -- MC_U105663139/Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2012 Jul 6;337(6090):93-6. doi: 10.1126/science.1218530. Epub 2012 May 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, University of Geneva, Geneva, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22628554" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Anion Transport Proteins/chemistry/genetics/*metabolism ; Biological Transport ; Biosynthetic Pathways ; Culture Media ; Lactococcus lactis/genetics/metabolism ; Leucine/metabolism ; Mice ; Mitochondria/*metabolism ; Mitochondrial Membrane Transport Proteins/chemistry/genetics/*metabolism ; Mitochondrial Membranes/*metabolism ; Molecular Sequence Data ; Proprotein Convertase 1/chemistry/genetics/*metabolism ; Proprotein Convertase 2 ; Pyruvic Acid/*metabolism ; Recombinant Proteins/metabolism ; Saccharomyces cerevisiae/genetics/growth & development/metabolism ; Saccharomyces cerevisiae Proteins/chemistry/genetics/*metabolism ; Thioctic Acid/biosynthesis/metabolism ; Valine/metabolism
    Print ISSN: 0036-8075
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    Erasure of a spinal memory trace of pain by a brief, high-dose opioid administration (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-01-17
    Description: Painful stimuli activate nociceptive C fibers and induce synaptic long-term potentiation (LTP) at their spinal terminals. LTP at C-fiber synapses represents a cellular model for pain amplification (hyperalgesia) and for a memory trace of pain. mu-Opioid receptor agonists exert a powerful but reversible depression at C-fiber synapses that renders the continuous application of low opioid doses the gold standard in pain therapy. We discovered that brief application of a high opioid dose reversed various forms of activity-dependent LTP at C-fiber synapses. Depotentiation involved Ca(2+)-dependent signaling and normalization of the phosphorylation state of alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptors. This also reversed hyperalgesia in behaving animals. Opioids thus not only temporarily dampen pain but may also erase a spinal memory trace of pain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Drdla-Schutting, Ruth -- Benrath, Justus -- Wunderbaldinger, Gabriele -- Sandkuhler, Jurgen -- New York, N.Y. -- Science. 2012 Jan 13;335(6065):235-8. doi: 10.1126/science.1211726.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurophysiology, Center for Brain Research, Medical University of Vienna, A-1090 Vienna, Austria.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22246779" target="_blank"〉PubMed〈/a〉
    Keywords: Analgesics, Opioid/*administration & dosage ; Animals ; Calcium Signaling ; Evoked Potentials ; Hyperalgesia/chemically induced/drug therapy ; Long-Term Potentiation/*drug effects ; Male ; Naloxone/administration & dosage ; Nerve Fibers, Unmyelinated/*drug effects/physiology ; Nociceptive Pain/*drug therapy/physiopathology ; Phosphorylation ; Piperidines/*administration & dosage ; Protein Kinase C/antagonists & inhibitors/metabolism ; Protein Phosphatase 1/antagonists & inhibitors/metabolism ; Rats ; Rats, Sprague-Dawley ; Receptors, AMPA/metabolism ; Receptors, Opioid, mu/agonists/metabolism ; Sciatic Nerve/*drug effects/physiology ; Somatostatin/administration & dosage/analogs & derivatives ; Spinal Cord/physiology ; Synapses/*drug effects/physiology
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    Broadly neutralizing antibodies present new prospects to counter highly antigenically diverse viruses (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-07-17
    Description: Certain human pathogens avoid elimination by our immune system by rapidly mutating the surface protein sites targeted by antibody responses, and consequently they tend to be problematic for vaccine development. The behavior described is prominent for a subset of viruses--the highly antigenically diverse viruses--which include HIV, influenza, and hepatitis C viruses. However, these viruses do harbor highly conserved exposed sites, usually associated with function, which can be targeted by broadly neutralizing antibodies. Until recently, not many such antibodies were known, but advances in the field have enabled increasing numbers to be identified. Molecular characterizations of the antibodies and, most importantly, of the sites of vulnerability that they recognize give hope for the discovery of new vaccines and drugs.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3600854/" 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/PMC3600854/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Burton, Dennis R -- Poignard, Pascal -- Stanfield, Robyn L -- Wilson, Ian A -- P01 AI082362/AI/NIAID NIH HHS/ -- R01 AI084817/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2012 Jul 13;337(6091):183-6. doi: 10.1126/science.1225416.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology and Microbial Science and International AIDS Vaccine Initiative Neutralizing Antibody Center, The Scripps Research Institute, La Jolla, CA 92037, USA. burton@scripps.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22798606" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS Vaccines/immunology ; Animals ; Antibodies, Neutralizing/*immunology ; Antibodies, Viral/*immunology ; *Antigenic Variation ; Drug Discovery ; HIV Antibodies/chemistry/*immunology ; HIV Infections/immunology/prevention & control ; HIV-1/*immunology/pathogenicity ; Hepacivirus/*immunology ; Hepatitis C/immunology/prevention & control ; Humans ; Influenza Vaccines ; Influenza, Human/immunology/prevention & control ; Models, Molecular ; Orthomyxoviridae/*immunology ; env Gene Products, Human Immunodeficiency Virus/chemistry/immunology
    Print ISSN: 0036-8075
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    Neuropathology. Blast injuries linked to neurodegeneration in veterans (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-05-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, Greg -- New York, N.Y. -- Science. 2012 May 18;336(6083):790-1. doi: 10.1126/science.336.6083.790.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22605724" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Animals ; Axons/pathology ; Blast Injuries/metabolism/*pathology ; Brain/*pathology ; Brain Chemistry ; Brain Injury, Chronic/metabolism/*pathology ; Humans ; Male ; Mice ; Middle Aged ; *Military Personnel ; *Veterans ; Young Adult ; tau Proteins/analysis
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    Breakthrough of the year. Scorecard: rating last year's areas to watch (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-12-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 2012 Dec 21;338(6114):1532. doi: 10.1126/science.338.6114.1532.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23258868" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Elementary Particles ; Genome, Bacterial ; Humans ; Intellectual Disability/drug therapy ; Mars ; Molecular Epidemiology ; *Science ; Spacecraft ; Stem Cells/metabolism
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    Bateman in nature: predation on offspring reduces the potential for sexual selection (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-11-10
    Description: Sexual selection is driven by competition for mates, and the advantage of a competitor is determined by the number of offspring it produces. Early experiments by Angus Bateman characterized this interaction, and the quantitative relationship between a male's number of mates and number of offspring is known as the Bateman slope. Sexual dimorphism, one of the most obvious results of sexual selection, largely requires a positive Bateman relationship, and the slope provides an estimate of the potential for sexual selection. However, natural selection from the environment can also influence male success, as can random effects, and some have argued for inclusion of the latter in calculations of mate success. Data from pronghorn (Antilocapra americana) reveal the presence of a positive Bateman slope in each year of a 10-year study. We found no evidence that random effects skewed male mating success; however, substantial yearly variation in the Bateman slope due to predation on fawns was evident. These results support the validity of the Bateman relationship, yet they also demonstrate that environmental or extrinsic influences can limit the potential for sexual selection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Byers, John -- Dunn, Stacey -- New York, N.Y. -- Science. 2012 Nov 9;338(6108):802-4. doi: 10.1126/science.1224660.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, University of Idaho, Moscow, ID 83844-3051, USA. jbyers@uidaho.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23139332" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antelopes/*physiology ; Biological Evolution ; Coyotes ; Female ; Linear Models ; Male ; *Mating Preference, Animal ; Montana ; *Predatory Behavior ; Reproduction ; Selection, Genetic ; Sex Characteristics ; Sex Ratio ; *Sexual Behavior, Animal
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    Immunology. A decorated virus cannot hide (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-11-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Herzog, Roland W -- Ostrov, David A -- R01 AI051390/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2012 Nov 9;338(6108):748-9. doi: 10.1126/science.1230342.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pediatrics University of Florida, Gainesville, FL 32610, USA. rherzog@ufl .edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23139318" target="_blank"〉PubMed〈/a〉
    Keywords: Adenoviridae Infections/*immunology ; Adenoviruses, Human/*immunology/*metabolism ; Animals ; Factor X/*metabolism ; Humans ; *Immunity, Innate
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    U.S. basic research: delayed drug development (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-09-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Reidenberg, Marcus M -- Erle, Henry -- New York, N.Y. -- Science. 2012 Sep 28;337(6102):1605.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23019629" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biomedical Research/*economics ; Humans ; National Institutes of Health (U.S.)/*economics
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    Highly conserved protective epitopes on influenza B viruses (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-08-11
    Description: Identification of broadly neutralizing antibodies against influenza A viruses has raised hopes for the development of monoclonal antibody-based immunotherapy and "universal" vaccines for influenza. However, a substantial part of the annual flu burden is caused by two cocirculating, antigenically distinct lineages of influenza B viruses. Here, we report human monoclonal antibodies, CR8033, CR8071, and CR9114, that protect mice against lethal challenge from both lineages. Antibodies CR8033 and CR8071 recognize distinct conserved epitopes in the head region of the influenza B hemagglutinin (HA), whereas CR9114 binds a conserved epitope in the HA stem and protects against lethal challenge with influenza A and B viruses. These antibodies may inform on development of monoclonal antibody-based treatments and a universal flu vaccine for all influenza A and B viruses.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3538841/" 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/PMC3538841/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dreyfus, Cyrille -- Laursen, Nick S -- Kwaks, Ted -- Zuijdgeest, David -- Khayat, Reza -- Ekiert, Damian C -- Lee, Jeong Hyun -- Metlagel, Zoltan -- Bujny, Miriam V -- Jongeneelen, Mandy -- van der Vlugt, Remko -- Lamrani, Mohammed -- Korse, Hans J W M -- Geelen, Eric -- Sahin, Ozcan -- Sieuwerts, Martijn -- Brakenhoff, Just P J -- Vogels, Ronald -- Li, Olive T W -- Poon, Leo L M -- Peiris, Malik -- Koudstaal, Wouter -- Ward, Andrew B -- Wilson, Ian A -- Goudsmit, Jaap -- Friesen, Robert H E -- GM080209/GM/NIGMS NIH HHS/ -- P41RR001209/RR/NCRR NIH HHS/ -- RR017573/RR/NCRR NIH HHS/ -- T32 GM080209/GM/NIGMS NIH HHS/ -- U54 GM094586/GM/NIGMS NIH HHS/ -- Y1-CO-1020/CO/NCI NIH HHS/ -- Y1-GM-1104/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2012 Sep 14;337(6100):1343-8. doi: 10.1126/science.1222908. Epub 2012 Aug 9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22878502" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibodies, Monoclonal/chemistry/*immunology ; Antibodies, Neutralizing/chemistry/immunology ; Conserved Sequence ; Hemagglutinin Glycoproteins, Influenza Virus/*immunology ; Humans ; Immunodominant Epitopes/chemistry/*immunology ; Influenza B virus/*immunology ; Influenza Vaccines/*immunology ; Mice ; Molecular Sequence Data ; Neutralization Tests ; Orthomyxoviridae Infections/*prevention & control ; Protein Conformation
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    Cancer. California weighs tobacco tax hike to fund research (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-04-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, Greg -- New York, N.Y. -- Science. 2012 Apr 27;336(6080):399-400. doi: 10.1126/science.336.6080.399.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22539688" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biomedical Research/*economics ; California ; Cardiovascular Diseases ; Financing, Government ; *Neoplasms ; *Research Support as Topic ; *Smoking/adverse effects/economics/legislation & jurisprudence ; Smoking Cessation ; State Government ; Taxes/*legislation & jurisprudence ; *Tobacco/adverse effects ; Tobacco Industry
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    Dam threatens Mekong ecology (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-12-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lanza, Guy R -- New York, N.Y. -- Science. 2012 Dec 21;338(6114):1537. doi: 10.1126/science.338.6114.1537-a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23258871" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; Conservation of Natural Resources/*economics ; *Endangered Species ; *Environment ; *Investments ; *Trees
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    Cancer research. Cancer prevention with a diabetes pill? (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-01-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Taubes, Gary -- New York, N.Y. -- Science. 2012 Jan 6;335(6064):29. doi: 10.1126/science.335.6064.29.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22223788" target="_blank"〉PubMed〈/a〉
    Keywords: AMP-Activated Protein Kinases/metabolism ; Animals ; Anticarcinogenic Agents/*therapeutic use ; Blood Glucose/metabolism ; Clinical Trials as Topic ; Diabetes Mellitus, Type 2/drug therapy ; Humans ; Hypoglycemic Agents/pharmacology/*therapeutic use ; Insulin/blood/metabolism ; Metformin/pharmacology/*therapeutic use ; Mice ; Neoplasms/epidemiology/*prevention & control ; Protein-Serine-Threonine Kinases/metabolism ; Somatomedins/metabolism
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    Cancer research. Unraveling the obesity-cancer connection (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-01-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Taubes, Gary -- New York, N.Y. -- Science. 2012 Jan 6;335(6064):28, 30-2. doi: 10.1126/science.335.6064.28.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22223787" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Proliferation ; Diabetes Mellitus, Type 2/complications/*metabolism ; Diet ; Glucose/metabolism ; Humans ; Insulin/blood/*metabolism ; Mutation ; Neoplasms/*etiology/genetics/metabolism/pathology ; Obesity/complications/*metabolism ; Phosphatidylinositol 3-Kinases/metabolism ; Receptor, Insulin/metabolism ; Receptors, Somatomedin/metabolism ; Signal Transduction ; Somatomedins/*metabolism
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    Immunology. Select inflammasome assembly (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-04-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Caffrey, Daniel R -- Fitzgerald, Katherine A -- New York, N.Y. -- Science. 2012 Apr 27;336(6080):420-1. doi: 10.1126/science.1222362.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Medical School, Worcester, MA 01605, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22539706" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carrier Proteins/*metabolism ; GTP-Binding Proteins/*metabolism ; Humans ; Inflammasomes/*metabolism ; Macrophages/*metabolism
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    Breakthrough of the year. The runners-up (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-12-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 2012 Dec 21;338(6114):1525-32. doi: 10.1126/science.338.6114.1525.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23258865" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain-Computer Interfaces ; Crystallography, X-Ray ; Elementary Particles ; Embryonic Stem Cells ; Fossils ; Genetic Engineering ; Genome, Human ; Genomics ; Hominidae/genetics ; Humans ; Lasers ; Mars ; Oocytes/cytology ; Protein Conformation ; Protozoan Proteins/chemistry ; *Science ; Sequence Analysis, DNA ; Spacecraft ; Trypanosoma brucei brucei/enzymology
    Print ISSN: 0036-8075
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    Paleontology. Old and groovy (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-06-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Droser, Mary L -- Gehling, James G -- New York, N.Y. -- Science. 2012 Jun 29;336(6089):1646-7. doi: 10.1126/science.1223848.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Earth Sciences, University of California, Riverside, Riverside, CA 92521, USA. mary.droser@ucr.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22745409" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Fossils
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    Biomedicine. Nanoparticle treatment reverses cerebral palsy in rabbits (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-04-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, Greg -- New York, N.Y. -- Science. 2012 Apr 20;336(6079):286. doi: 10.1126/science.336.6079.286.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22517832" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylcysteine/*administration & dosage/therapeutic use ; Animals ; Animals, Newborn ; Astrocytes/drug effects ; Brain/*drug effects ; Cerebral Palsy/*drug therapy ; Dendrimers/*administration & dosage/therapeutic use ; Disease Models, Animal ; Microglia/drug effects ; Neuroprotective Agents/administration & dosage/therapeutic use ; Rabbits
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    Anthropology. Did australopiths climb trees? (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-11-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Larson, Susan -- New York, N.Y. -- Science. 2012 Oct 26;338(6106):478-9. doi: 10.1126/science.1230128.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Anatomical Sciences, School of Medicine, Stony Brook University, Stony Brook, NY 11794, USA. susan.larson@stonybrook.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23112319" target="_blank"〉PubMed〈/a〉
    Keywords: *Adaptation, Physiological ; Animals ; *Biological Evolution ; Hominidae/*anatomy & histology ; Humans ; *Locomotion ; Scapula/*anatomy & histology
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    Turbulence, cleavage, and the naked embryo: a case for coral clones (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-03-03
    Description: After mass spawning events, coral embryos, lacking the protective capsule of other metazoans, are directly exposed to the environment at the ocean surface. Here, we present evidence that modest turbulence disrupts the integrity of these embryos, which fragment into totipotent cells that develop into proportionately smaller functional larvae. The level of turbulence required to fragment coral embryos can be generated from small wind-generated waves, which occur frequently during coral spawning on the Great Barrier Reef. The formation of planktonic coral clones, through natural embryo fragmentation of broadcast spawn, is a previously unknown mode of reproduction in the animal kingdom.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Heyward, A J -- Negri, A P -- New York, N.Y. -- Science. 2012 Mar 2;335(6072):1064. doi: 10.1126/science.1216055.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Australian Institute of Marine Science (AIMS), The University of Western Australia Oceans Institute, WA, Australia. a.heyward@aims.gov.au〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22383841" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anthozoa/*embryology/*physiology ; Blastomeres/physiology ; *Coral Reefs ; Embryo, Nonmammalian/*physiology ; Embryonic Development ; Larva/growth & development ; Reproduction ; *Seawater ; *Water Movements ; Wind
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    Actin network architecture can determine myosin motor activity (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-06-09
    Description: The organization of actin filaments into higher-ordered structures governs eukaryotic cell shape and movement. Global actin network size and architecture are maintained in a dynamic steady state through regulated assembly and disassembly. Here, we used experimentally defined actin structures in vitro to investigate how the activity of myosin motors depends on network architecture. Direct visualization of filaments revealed myosin-induced actin network deformation. During this reorganization, myosins selectively contracted and disassembled antiparallel actin structures, while parallel actin bundles remained unaffected. The local distribution of nucleation sites and the resulting orientation of actin filaments appeared to regulate the scalability of the contraction process. This "orientation selection" mechanism for selective contraction and disassembly suggests how the dynamics of the cellular actin cytoskeleton can be spatially controlled by actomyosin contractility.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3649007/" 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/PMC3649007/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Reymann, Anne-Cecile -- Boujemaa-Paterski, Rajaa -- Martiel, Jean-Louis -- Guerin, Christophe -- Cao, Wenxiang -- Chin, Harvey F -- De La Cruz, Enrique M -- Thery, Manuel -- Blanchoin, Laurent -- GM097348/GM/NIGMS NIH HHS/ -- R01 GM097348/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2012 Jun 8;336(6086):1310-4. doi: 10.1126/science.1221708.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut de Recherches en Technologies et Sciences pour le Vivant (iRTSV), Centre National de la Recherche Scientifique (CNRS)-Commissariat a l'Energie Atomique et aux Energies Alternatives (CEA)-Institut National de la Recherche Agronomique (INRA), Grenoble, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22679097" target="_blank"〉PubMed〈/a〉
    Keywords: Actin Cytoskeleton/*metabolism/*ultrastructure ; Actins/chemistry/*metabolism ; Actomyosin/chemistry/metabolism ; Animals ; Myosin Heavy Chains/chemistry/*metabolism ; Myosin Type II/chemistry/*metabolism ; Rabbits ; Swine
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    IBI series winner. A mutant search--Caenorhabditis elegans and gene discovery (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-11-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉LaRue, Candace C -- Padilla, Pamela A -- New York, N.Y. -- Science. 2012 Oct 26;338(6106):487-8. doi: 10.1126/science.1215229.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, University of North Texas, Denton TX 76203, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23112325" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Caenorhabditis elegans/*genetics ; Caenorhabditis elegans Proteins/*genetics ; DNA Mutational Analysis ; *Genetic Association Studies ; Genetic Research ; *Genetic Testing ; Genetics/*education ; Mutation ; Texas ; Universities
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    Profile: Kit Parker. Engineering a new line of attack on a signature war injury (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-01-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, Greg -- New York, N.Y. -- Science. 2012 Jan 6;335(6064):33-5. doi: 10.1126/science.335.6064.33.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22223790" target="_blank"〉PubMed〈/a〉
    Keywords: Afghan Campaign 2001- ; Animals ; Axons/pathology ; Blast Injuries/pathology/*physiopathology ; Brain Injuries/epidemiology/pathology/*physiopathology ; Cells, Cultured ; History, 21st Century ; Humans ; Integrins/metabolism ; Iraq War, 2003-2011 ; Neurons/physiology ; Tissue Engineering ; Vasospasm, Intracranial/pathology/physiopathology
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    Neuroscience. Ode to the mushroom bodies (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-02-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dubnau, Josh -- New York, N.Y. -- Science. 2012 Feb 10;335(6069):664-5. doi: 10.1126/science.1218171.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA. dubnau@cshl.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22323806" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Drosophila/*physiology ; Drosophila Proteins/*biosynthesis ; Memory, Long-Term/*physiology ; Mushroom Bodies/*physiology ; Neurons/*physiology
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    Interleukin-22 drives endogenous thymic regeneration in mice (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-03-03
    Description: Endogenous thymic regeneration is a crucial function that allows for renewal of immune competence after stress, infection, or immunodepletion. However, the mechanisms governing this regeneration remain poorly understood. We detail such a mechanism, centered on interleukin-22 (IL-22) and triggered by the depletion of CD4(+)CD8(+) double-positive thymocytes. Intrathymic levels of IL-22 were increased after thymic insult, and thymic recovery was impaired in IL-22-deficient mice. IL-22, which signaled through thymic epithelial cells and promoted their proliferation and survival, was up-regulated by radio-resistant RORgamma(t)(+)CCR6(+)NKp46(-) lymphoid tissue inducer cells after thymic injury in an IL-23-dependent manner. Administration of IL-22 enhanced thymic recovery after total body irradiation. These studies reveal mechanisms of endogenous thymic repair and offer innovative regenerative strategies for improving immune competence.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3616391/" 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/PMC3616391/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dudakov, Jarrod A -- Hanash, Alan M -- Jenq, Robert R -- Young, Lauren F -- Ghosh, Arnab -- Singer, Natalie V -- West, Mallory L -- Smith, Odette M -- Holland, Amanda M -- Tsai, Jennifer J -- Boyd, Richard L -- van den Brink, Marcel R M -- AI080455/AI/NIAID NIH HHS/ -- CA107096/CA/NCI NIH HHS/ -- HL069929/HL/NHLBI NIH HHS/ -- HL095075/HL/NHLBI NIH HHS/ -- R01 AI080455/AI/NIAID NIH HHS/ -- R01 CA107096/CA/NCI NIH HHS/ -- R01 HL069929/HL/NHLBI NIH HHS/ -- R01 HL095075/HL/NHLBI NIH HHS/ -- T32 CA009207/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2012 Apr 6;336(6077):91-5. doi: 10.1126/science.1218004. Epub 2012 Mar 1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Immunology Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA. dudakovj@mskcc.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22383805" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Count ; Cell Proliferation ; Cell Survival ; Dendritic Cells/physiology ; Epithelial Cells/cytology/physiology ; Interleukin-23/metabolism ; Interleukins/administration & dosage/deficiency/genetics/*metabolism ; Lymphocytes/cytology/physiology ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Nuclear Receptor Subfamily 1, Group F, Member 3/genetics/metabolism ; Radiation Dosage ; Receptors, Interleukin/metabolism ; Recombinant Proteins/administration & dosage ; *Regeneration ; Signal Transduction ; Thymocytes/*physiology ; Thymus Gland/cytology/immunology/*physiology/radiation effects ; Up-Regulation ; Whole-Body Irradiation
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    Identification of small molecule activators of cryptochrome (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-07-17
    Description: Impairment of the circadian clock has been associated with numerous disorders, including metabolic disease. Although small molecules that modulate clock function might offer therapeutic approaches to such diseases, only a few compounds have been identified that selectively target core clock proteins. From an unbiased cell-based circadian phenotypic screen, we identified KL001, a small molecule that specifically interacts with cryptochrome (CRY). KL001 prevented ubiquitin-dependent degradation of CRY, resulting in lengthening of the circadian period. In combination with mathematical modeling, our studies using KL001 revealed that CRY1 and CRY2 share a similar functional role in the period regulation. Furthermore, KL001-mediated CRY stabilization inhibited glucagon-induced gluconeogenesis in primary hepatocytes. KL001 thus provides a tool to study the regulation of CRY-dependent physiology and aid development of clock-based therapeutics of diabetes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3589997/" 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/PMC3589997/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hirota, Tsuyoshi -- Lee, Jae Wook -- St John, Peter C -- Sawa, Mariko -- Iwaisako, Keiko -- Noguchi, Takako -- Pongsawakul, Pagkapol Y -- Sonntag, Tim -- Welsh, David K -- Brenner, David A -- Doyle, Francis J 3rd -- Schultz, Peter G -- Kay, Steve A -- GM074868/GM/NIGMS NIH HHS/ -- GM085764/GM/NIGMS NIH HHS/ -- GM096873/GM/NIGMS NIH HHS/ -- MH051573/MH/NIMH NIH HHS/ -- MH082945/MH/NIMH NIH HHS/ -- P50 GM085764/GM/NIGMS NIH HHS/ -- R01 GM041804/GM/NIGMS NIH HHS/ -- R01 GM074868/GM/NIGMS NIH HHS/ -- R01 GM096873/GM/NIGMS NIH HHS/ -- R01 MH051573/MH/NIMH NIH HHS/ -- R01 MH082945/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2012 Aug 31;337(6098):1094-7. doi: 10.1126/science.1223710. Epub 2012 Jul 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biological Sciences, University of California San Diego, La Jolla, CA 92093, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22798407" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Amino Acid Sequence ; Animals ; Carbazoles/chemistry/isolation & purification/*pharmacology ; Cell Line, Tumor ; Circadian Clocks/*drug effects ; Cryptochromes/*agonists/metabolism ; Gluconeogenesis/drug effects/genetics ; Glucose-6-Phosphatase/genetics ; HEK293 Cells ; Hepatocytes/drug effects/metabolism ; Humans ; Liver/cytology/drug effects/metabolism ; Mice ; Molecular Sequence Data ; Phosphoenolpyruvate Carboxykinase (GTP)/genetics ; Protein Stability/drug effects ; Proteolysis/drug effects ; *Small Molecule Libraries ; Sulfonamides/chemistry/isolation & purification/*pharmacology
    Print ISSN: 0036-8075
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    Airn transcriptional overlap, but not its lncRNA products, induces imprinted Igf2r silencing (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-12-15
    Description: Mammalian imprinted genes often cluster with long noncoding (lnc) RNAs. Three lncRNAs that induce parental-specific silencing show hallmarks indicating that their transcription is more important than their product. To test whether Airn transcription or product silences the Igf2r gene, we shortened the endogenous lncRNA to different lengths. The results excluded a role for spliced and unspliced Airn lncRNA products and for Airn nuclear size and location in silencing Igf2r. Instead, silencing only required Airn transcriptional overlap of the Igf2r promoter, which interferes with RNA polymerase II recruitment in the absence of repressive chromatin. Such a repressor function for lncRNA transcriptional overlap reveals a gene silencing mechanism that may be widespread in the mammalian genome, given the abundance of lncRNA transcripts.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Latos, Paulina A -- Pauler, Florian M -- Koerner, Martha V -- Senergin, H Basak -- Hudson, Quanah J -- Stocsits, Roman R -- Allhoff, Wolfgang -- Stricker, Stefan H -- Klement, Ruth M -- Warczok, Katarzyna E -- Aumayr, Karin -- Pasierbek, Pawel -- Barlow, Denise P -- New York, N.Y. -- Science. 2012 Dec 14;338(6113):1469-72. doi: 10.1126/science.1228110.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Lazarettgasse 14, 1090 Vienna, Austria.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23239737" target="_blank"〉PubMed〈/a〉
    Keywords: Alternative Splicing ; Animals ; Cells, Cultured ; *Gene Silencing ; *Genomic Imprinting ; Mice ; Multigene Family ; Promoter Regions, Genetic ; RNA Polymerase II/metabolism ; RNA, Long Noncoding/genetics/*metabolism ; Receptor, IGF Type 2/*genetics ; *Transcription, Genetic
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    A curiosity moment for tropical biology? (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-11-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cannon, Charles H -- New York, N.Y. -- Science. 2012 Oct 26;338(6106):467. doi: 10.1126/science.338.6106.467-a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23112309" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biology/*economics/*trends ; *Rain ; *Trees ; *Tropical Climate
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Medicine. Leveraging shear stress to bust clots with nanoparticles (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-08-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lavik, Erin -- Ustin, Jeffrey -- New York, N.Y. -- Science. 2012 Aug 10;337(6095):658-9. doi: 10.1126/science.1227097.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Case Western Reserve University, Cleveland, OH 44106, USA. erin.lavik@case.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22879494" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Drug Delivery Systems/*methods ; Fibrinolytic Agents/*administration & dosage ; Male ; Mesenteric Vascular Occlusion/*drug therapy ; *Nanoparticles ; Pulmonary Embolism/*drug therapy ; Thrombosis/*drug therapy ; Tissue Plasminogen Activator/*administration & dosage
    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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    Physiology. COX-2 inhibitors and cardiovascular risk (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-06-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cannon, Christopher P -- Cannon, Paul J -- New York, N.Y. -- Science. 2012 Jun 15;336(6087):1386-7. doi: 10.1126/science.1224398.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Thrombolysis in Myocardial Infarction Study Group, Cardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA. cpcannon@partners.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22700906" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cardiovascular Diseases/chemically induced ; Cyclooxygenase 2/genetics/*metabolism ; Cyclooxygenase 2 Inhibitors/*adverse effects/pharmacology ; Endothelial Cells/*enzymology ; Epoprostenol/metabolism ; Genetic Engineering ; Humans ; Hypertension/*chemically induced ; Mice ; Muscle, Smooth, Vascular/*enzymology ; Risk Factors ; Thrombosis/*chemically induced
    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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    Activation-induced B cell fates are selected by intracellular stochastic competition (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-01-10
    Description: In response to stimulation, B lymphocytes pursue a large number of distinct fates important for immune regulation. Whether each cell's fate is determined by external direction, internal stochastic processes, or directed asymmetric division is unknown. Measurement of times to isotype switch, to develop into a plasmablast, and to divide or to die for thousands of cells indicated that each fate is pursued autonomously and stochastically. As a consequence of competition between these processes, censorship of alternative outcomes predicts intricate correlations that are observed in the data. Stochastic competition can explain how the allocation of a proportion of B cells to each cell fate is achieved. The B cell may exemplify how other complex cell differentiation systems are controlled.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Duffy, Ken R -- Wellard, Cameron J -- Markham, John F -- Zhou, Jie H S -- Holmberg, Ross -- Hawkins, Edwin D -- Hasbold, Jhagvaral -- Dowling, Mark R -- Hodgkin, Philip D -- New York, N.Y. -- Science. 2012 Jan 20;335(6066):338-41. doi: 10.1126/science.1213230. Epub 2012 Jan 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Hamilton Institute, National University of Ireland, Maynooth, Ireland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22223740" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/*cytology/*immunology ; Cell Death ; Cell Differentiation ; Cell Division ; Female ; Immunoglobulin Class Switching ; *Lymphocyte Activation ; Mice ; Models, Immunological ; Stochastic Processes
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Cell biology. FGF21 takes a fat bite (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-05-15
    Description: 〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3616235/" 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/PMC3616235/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Canto, Carles -- Auwerx, Johan -- 231138/European Research Council/International -- New York, N.Y. -- Science. 2012 May 11;336(6082):675-6. doi: 10.1126/science.1222646.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Nestle Institute of Health Sciences, Ecole Polytechnique Federale de Lausanne Campus, Quartier de l'Innovation, Batiment G, CH-1015 Lausanne, Switzerland. carlos.cantoalvarez@rd.nestle.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22582248" target="_blank"〉PubMed〈/a〉
    Keywords: Adipose Tissue, Brown/metabolism ; Adipose Tissue, White/*metabolism ; Animals ; Fasting/metabolism ; Fibroblast Growth Factors/blood/*metabolism/pharmacology ; Humans ; Metabolic Syndrome X/metabolism ; Mice ; Overweight/metabolism ; PPAR gamma/metabolism ; Signal Transduction ; *Thermogenesis ; Trans-Activators/metabolism ; Transcription Factors
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    Ecological context influences epidemic size and parasite-driven evolution (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-03-31
    Description: The occurrence and magnitude of disease outbreaks can strongly influence host evolution. In particular, when hosts face a resistance-fecundity trade-off, they might evolve increased resistance to infection during larger epidemics but increased susceptibility during smaller ones. We tested this theoretical prediction by using a zooplankton-yeast host-parasite system in which ecological factors determine epidemic size. Lakes with high productivity and low predation pressure had large yeast epidemics; during these outbreaks, hosts became more resistant to infection. However, with low productivity and high predation, epidemics remained small and hosts evolved increased susceptibility. Thus, by modulating disease outbreaks, ecological context (productivity and predation) shaped host evolution during epidemics. Consequently, anthropogenic alteration of productivity and predation might strongly influence both ecological and evolutionary outcomes of disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Duffy, Meghan A -- Ochs, Jessica Housley -- Penczykowski, Rachel M -- Civitello, David J -- Klausmeier, Christopher A -- Hall, Spencer R -- New York, N.Y. -- Science. 2012 Mar 30;335(6076):1636-8. doi: 10.1126/science.1215429.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Biology, Georgia Institute of Technology, Atlanta, GA 30332-0230, USA. duffy@gatech.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22461614" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Daphnia/*microbiology/*physiology ; *Ecosystem ; Female ; Fishes ; *Host-Pathogen Interactions ; Indiana ; *Lakes ; Male ; Metschnikowia/*pathogenicity ; Models, Biological ; Population Dynamics ; Predatory Behavior ; Reproduction ; Zooplankton/microbiology/physiology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Animal domestication. From farmyard to the lab (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-11-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lawler, Andrew -- New York, N.Y. -- Science. 2012 Nov 23;338(6110):1022-3. doi: 10.1126/science.338.6110.1022.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23180840" target="_blank"〉PubMed〈/a〉
    Keywords: *Animal Husbandry ; Animals ; *Breeding ; China ; DNA, Mitochondrial/genetics ; *Laboratories ; Microsatellite Repeats/genetics ; Poultry/*genetics ; Selection, Genetic
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    Neuroscience. Wiping drug memories (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-04-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Milton, Amy L -- Everitt, Barry J -- G1002231/Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2012 Apr 13;336(6078):167-8. doi: 10.1126/science.1221691.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Behavioural and Clinical Neuroscience Institute, Department of Experimental Psychology, University of Cambridge, Cambridge, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22499932" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Behavior, Addictive/*prevention & control ; Cocaine-Related Disorders/*psychology ; *Extinction, Psychological ; Heroin Dependence/*psychology ; Humans ; Male ; *Memory
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    A Bruce effect in wild geladas (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-03-01
    Description: Female rodents are known to terminate pregnancies after exposure to unfamiliar males ("Bruce effect"). Although laboratory support abounds, direct evidence for a Bruce effect under natural conditions is lacking. Here, we report a strong Bruce effect in a wild primate, the gelada (Theropithecus gelada). Female geladas terminate 80% of pregnancies in the weeks after a dominant male is replaced. Further, data on interbirth intervals suggest that pregnancy termination offers fitness benefits for females whose offspring would otherwise be susceptible to infanticide. Taken together, data support the hypothesis that the Bruce effect can be an adaptive strategy for females.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roberts, Eila K -- Lu, Amy -- Bergman, Thore J -- Beehner, Jacinta C -- New York, N.Y. -- Science. 2012 Mar 9;335(6073):1222-5. doi: 10.1126/science.1213600. Epub 2012 Feb 23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychology, University of Michigan, Ann Arbor, MI 48109, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22362878" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Wild ; *Behavior, Animal ; Birth Rate ; Estrogens/analysis ; Ethiopia ; Feces/chemistry ; Female ; *Genetic Fitness ; Gestational Age ; Male ; Pregnancy ; Pregnancy Outcome ; *Pregnancy, Animal ; Sexual Behavior, Animal ; Social Behavior ; *Social Dominance ; *Theropithecus/physiology/psychology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Asymmetric segregation of polarized antigen on B cell division shapes presentation capacity (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-01-28
    Description: During the activation of humoral immune responses, B cells acquire antigen for subsequent presentation to cognate T cells. Here we show that after mouse B cells accumulate antigen, it is maintained in a polarized distribution for extended periods in vivo. Using high-throughput imaging flow cytometry, we observed that this polarization is preserved during B cell division, promoting asymmetric antigen segregation among progeny. Antigen inheritance correlates with the ability of progeny to activate T cells: Daughter cells receiving larger antigen stores exhibit a prolonged capacity to present antigen, which renders them more effective in competing for T cell help. The generation of progeny with differential capacities for antigen presentation may have implications for somatic hypermutation and class switching during affinity maturation and as B cells commit to effector cell fates.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thaunat, Olivier -- Granja, Aitor G -- Barral, Patricia -- Filby, Andrew -- Montaner, Beatriz -- Collinson, Lucy -- Martinez-Martin, Nuria -- Harwood, Naomi E -- Bruckbauer, Andreas -- Batista, Facundo D -- Cancer Research UK/United Kingdom -- New York, N.Y. -- Science. 2012 Jan 27;335(6067):475-9. doi: 10.1126/science.1214100.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lymphocyte Interaction Laboratory, London Research Institute, Cancer Research UK, 44 Lincoln's Inn Fields, London, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22282815" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Antigen Presentation ; Antigens/*analysis/*immunology ; B-Lymphocytes/cytology/*immunology ; Cell Division ; Cell Proliferation ; Cells, Cultured ; Coculture Techniques ; Computer Simulation ; Flow Cytometry ; *Lymphocyte Activation ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Models, Immunological ; Muramidase/analysis/immunology ; T-Lymphocytes/*immunology
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    Animal domestication. In search of the wild chicken (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-11-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lawler, Andrew -- New York, N.Y. -- Science. 2012 Nov 23;338(6110):1020-4. doi: 10.1126/science.338.6110.1020.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23180839" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Domestic/*genetics ; *Breeding ; Chickens/*genetics ; Extinction, Biological ; Female ; Influenza in Birds/genetics ; Male
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    Wnt/beta-catenin signaling regulates telomerase in stem cells and cancer cells (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-06-23
    Description: Telomerase activity controls telomere length and plays a pivotal role in stem cells, aging, and cancer. Here, we report a molecular link between Wnt/beta-catenin signaling and the expression of the telomerase subunit Tert. beta-Catenin-deficient mouse embryonic stem (ES) cells have short telomeres; conversely, ES cell expressing an activated form of beta-catenin (beta-cat(DeltaEx3/+)) have long telomeres. We show that beta-catenin regulates Tert expression through the interaction with Klf4, a core component of the pluripotency transcriptional network. beta-Catenin binds to the Tert promoter in a mouse intestinal tumor model and in human carcinoma cells. We uncover a previously unknown link between the stem cell and oncogenic potential whereby beta-catenin regulates Tert expression, and thereby telomere length, which could be critical in human regenerative therapy and cancer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hoffmeyer, Katrin -- Raggioli, Angelo -- Rudloff, Stefan -- Anton, Roman -- Hierholzer, Andreas -- Del Valle, Ignacio -- Hein, Kerstin -- Vogt, Riana -- Kemler, Rolf -- New York, N.Y. -- Science. 2012 Jun 22;336(6088):1549-54. doi: 10.1126/science.1218370.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Embryology, Max Planck Institute of Immunobiology and Epigenetics, Freiburg, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22723415" target="_blank"〉PubMed〈/a〉
    Keywords: Adult Stem Cells/*metabolism ; Animals ; Cell Line, Tumor ; Embryonic Stem Cells/*metabolism ; HEK293 Cells ; Humans ; Kruppel-Like Transcription Factors/metabolism ; Mice ; Neoplasms/genetics/*metabolism ; Promoter Regions, Genetic ; RNA, Messenger/genetics/metabolism ; Telomerase/*genetics/metabolism ; Telomere/metabolism/ultrastructure ; Telomere Homeostasis ; Transcription Initiation Site ; Wnt Proteins/metabolism ; *Wnt Signaling Pathway ; beta Catenin/genetics/*metabolism
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    Synaptic dysfunction in depression: potential therapeutic targets (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-10-09
    Description: Basic and clinical studies demonstrate that depression is associated with reduced size of brain regions that regulate mood and cognition, including the prefrontal cortex and the hippocampus, and decreased neuronal synapses in these areas. Antidepressants can block or reverse these neuronal deficits, although typical antidepressants have limited efficacy and delayed response times of weeks to months. A notable recent discovery shows that ketamine, a N-methyl-D-aspartate receptor antagonist, produces rapid (within hours) antidepressant responses in patients who are resistant to typical antidepressants. Basic studies show that ketamine rapidly induces synaptogenesis and reverses the synaptic deficits caused by chronic stress. These findings highlight the central importance of homeostatic control of mood circuit connections and form the basis of a synaptogenic hypothesis of depression and treatment response.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4424898/" 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/PMC4424898/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Duman, Ronald S -- Aghajanian, George K -- R01 MH093897/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2012 Oct 5;338(6103):68-72. doi: 10.1126/science.1222939.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychiatry, Yale University School of Medicine, 34 Park Street, New Haven, CT 06508, USA. ronald.duman@yale.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23042884" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antidepressive Agents/*administration & dosage ; Atrophy/pathology ; Behavior/drug effects ; Depressive Disorder, Major/*drug therapy/pathology/*physiopathology ; Homeostasis/drug effects ; Humans ; Mice ; Neurons/pathology ; Stress, Psychological/pathology/physiopathology ; Synapses/*drug effects/pathology/*physiology
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    Southwestern and Rocky Mountain Division. On Great Plains, Juniper Invasion signals prairies in distress (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-05-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 2012 Apr 27;336(6080):432.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22548215" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Ecosystem ; Endangered Species ; Humans ; Introduced Species ; *Juniperus ; Midwestern United States
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  • 83
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    Segregation of axonal and somatic activity during fast network oscillations (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-06-16
    Description: In central neurons, information flows from the dendritic surface toward the axon terminals. We found that during in vitro gamma oscillations, ectopic action potentials are generated at high frequency in the distal axon of pyramidal cells (PCs) but do not invade the soma. At the same time, axo-axonic cells (AACs) discharged at a high rate and tonically inhibited the axon initial segment, which can be instrumental in preventing ectopic action potential back-propagation. We found that activation of a single AAC substantially lowered soma invasion by antidromic action potential in postsynaptic PCs. In contrast, activation of soma-inhibiting basket cells had no significant impact. These results demonstrate that AACs can separate axonal from somatic activity and maintain the functional polarization of cortical PCs during network oscillations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dugladze, Tamar -- Schmitz, Dietmar -- Whittington, Miles A -- Vida, Imre -- Gloveli, Tengis -- New York, N.Y. -- Science. 2012 Jun 15;336(6087):1458-61. doi: 10.1126/science.1222017.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Neurophysiology, Charite-Universitatsmedizin Berlin, Chariteplatz 1, 10117 Berlin, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22700932" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials/drug effects ; Animals ; Axons/*physiology ; CA3 Region, Hippocampal/cytology/*physiology ; Electric Stimulation ; GABA-A Receptor Antagonists/pharmacology ; In Vitro Techniques ; Interneurons/*physiology ; Mice ; Nerve Net/*physiology ; Neural Inhibition ; Patch-Clamp Techniques ; Presynaptic Terminals/physiology ; Pyramidal Cells/*physiology ; Pyridazines/pharmacology ; Receptors, GABA-A/metabolism ; Synapses/physiology ; gamma-Aminobutyric Acid/pharmacology
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    Deformations within moving kinetochores reveal different sites of active and passive force generation (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-06-23
    Description: Kinetochores mediate chromosome segregation at mitosis. They are thought to contain both active, force-producing and passive, frictional interfaces with microtubules whose relative locations have been unclear. We inferred mechanical deformation within single kinetochores during metaphase oscillations by measuring average separations between fluorescently labeled kinetochore subunits in living cells undergoing mitosis. Inter-subunit distances were shorter in kinetochores moving toward poles than in those moving away. Inter-subunit separation decreased abruptly when kinetochores switched to poleward movement and decreased further when pulling force increased, suggesting that active force generation during poleward movement compresses kinetochores. The data revealed an active force-generating interface within kinetochores and a separate passive frictional interface located at least 20 nanometers away poleward. Together, these interfaces allow persistent attachment with intermittent active force generation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3672420/" 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/PMC3672420/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dumont, Sophie -- Salmon, E D -- Mitchison, Timothy J -- K99 GM094335/GM/NIGMS NIH HHS/ -- K99GM094335/GM/NIGMS NIH HHS/ -- R01 GM039565/GM/NIGMS NIH HHS/ -- R01GM039565/GM/NIGMS NIH HHS/ -- R37 GM024364/GM/NIGMS NIH HHS/ -- R37 GM039565/GM/NIGMS NIH HHS/ -- R37GM024364/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2012 Jul 20;337(6092):355-8. doi: 10.1126/science.1221886. Epub 2012 Jun 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA. sophie.dumont@ucsf.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22722252" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Cycle Proteins/genetics/metabolism ; Chromosomal Proteins, Non-Histone/genetics/metabolism ; Chromosome Segregation/genetics/*physiology ; Kinetochores/chemistry/*physiology ; Mechanical Processes ; *Metaphase ; Motion ; Nuclear Proteins/genetics/metabolism ; Potoroidae
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    Wnt5a potentiates TGF-beta signaling to promote colonic crypt regeneration after tissue injury (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-09-08
    Description: Reestablishing homeostasis after tissue damage depends on the proper organization of stem cells and their progeny, though the repair mechanisms are unclear. The mammalian intestinal epithelium is well suited to approach this problem, as it is composed of well-delineated units called crypts of Lieberkuhn. We found that Wnt5a, a noncanonical Wnt ligand, was required for crypt regeneration after injury in mice. Unlike controls, Wnt5a-deficient mice maintained an expanded population of proliferative epithelial cells in the wound. We used an in vitro system to enrich for intestinal epithelial stem cells to discover that Wnt5a inhibited proliferation of these cells. Surprisingly, the effects of Wnt5a were mediated by activation of transforming growth factor-beta (TGF-beta) signaling. These findings suggest a Wnt5a-dependent mechanism for forming new crypt units to reestablish homeostasis.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3706630/" 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/PMC3706630/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miyoshi, Hiroyuki -- Ajima, Rieko -- Luo, Christine T -- Yamaguchi, Terry P -- Stappenbeck, Thaddeus S -- 5T35DK074375/DK/NIDDK NIH HHS/ -- DK90251/DK/NIDDK NIH HHS/ -- P30-DK52574/DK/NIDDK NIH HHS/ -- R01 DK071619/DK/NIDDK NIH HHS/ -- Intramural NIH HHS/ -- New York, N.Y. -- Science. 2012 Oct 5;338(6103):108-13. doi: 10.1126/science.1223821. Epub 2012 Sep 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22956684" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Movement/drug effects/physiology ; Cell Proliferation/drug effects ; Cells, Cultured ; Colon/embryology/*injuries/*physiology ; Culture Media, Conditioned/pharmacology ; Homeostasis/drug effects/physiology ; Intestinal Mucosa/embryology/injuries/physiology ; Ligands ; Mesoderm/cytology/embryology ; Mice ; Mice, Knockout ; Receptor Tyrosine Kinase-like Orphan Receptors/metabolism ; Recombinant Proteins/pharmacology ; Signal Transduction ; Stem Cells/cytology/drug effects/physiology ; Tamoxifen/pharmacology ; Transforming Growth Factor beta/*metabolism ; Wnt Proteins/genetics/pharmacology/*physiology ; Wound Healing/drug effects/*physiology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    The geological record of ocean acidification (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-03-03
    Description: Ocean acidification may have severe consequences for marine ecosystems; however, assessing its future impact is difficult because laboratory experiments and field observations are limited by their reduced ecologic complexity and sample period, respectively. In contrast, the geological record contains long-term evidence for a variety of global environmental perturbations, including ocean acidification plus their associated biotic responses. We review events exhibiting evidence for elevated atmospheric CO(2), global warming, and ocean acidification over the past ~300 million years of Earth's history, some with contemporaneous extinction or evolutionary turnover among marine calcifiers. Although similarities exist, no past event perfectly parallels future projections in terms of disrupting the balance of ocean carbonate chemistry-a consequence of the unprecedented rapidity of CO(2) release currently taking place.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Honisch, Barbel -- Ridgwell, Andy -- Schmidt, Daniela N -- Thomas, Ellen -- Gibbs, Samantha J -- Sluijs, Appy -- Zeebe, Richard -- Kump, Lee -- Martindale, Rowan C -- Greene, Sarah E -- Kiessling, Wolfgang -- Ries, Justin -- Zachos, James C -- Royer, Dana L -- Barker, Stephen -- Marchitto, Thomas M Jr -- Moyer, Ryan -- Pelejero, Carles -- Ziveri, Patrizia -- Foster, Gavin L -- Williams, Branwen -- New York, N.Y. -- Science. 2012 Mar 2;335(6072):1058-63. doi: 10.1126/science.1208277.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY 10964, USA. hoenisch@ldeo.columbia.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22383840" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Biological ; Animals ; *Aquatic Organisms ; Atmosphere ; Carbon Dioxide ; Carbonates/analysis ; *Ecosystem ; Extinction, Biological ; Forecasting ; Fossils ; *Geological Phenomena ; Hydrogen-Ion Concentration ; Oceans and Seas ; Seawater/*chemistry
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    Pheromonal induction of spatial learning in mice (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-12-15
    Description: Many mammals use scent marking for sexual and competitive advertisement, but little is known about the mechanism by which scents are used to locate mates and competitors. We show that darcin, an involatile protein sex pheromone in male mouse urine, can rapidly condition preference for its remembered location among females and competitor males so that animals prefer to spend time in the site even when scent is absent. Learned spatial preference is conditioned through contact with darcin in a single trial and remembered for approximately 14 days. This pheromone-induced learning allows animals to relocate sites of particular social relevance and provides proof that pheromones such as darcin can be highly potent stimuli for social learning.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roberts, Sarah A -- Davidson, Amanda J -- McLean, Lynn -- Beynon, Robert J -- Hurst, Jane L -- BB/J002631/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- BBC503897/Biotechnology and Biological Sciences Research Council/United Kingdom -- New York, N.Y. -- Science. 2012 Dec 14;338(6113):1462-5. doi: 10.1126/science.1225638.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Mammalian Behaviour and Evolution Group, Institute of Integrative Biology, University of Liverpool, Leahurst Campus, Neston CH64 7TE, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23239735" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Competitive Behavior/drug effects/*physiology ; Conditioning (Psychology)/drug effects/physiology ; Female ; Male ; Maze Learning/drug effects/*physiology ; Mice ; Mice, Inbred C57BL ; Proteins/pharmacology/*physiology ; Sex Attractants/pharmacology/*physiology/urine ; Smell/drug effects/physiology ; Spatial Behavior/drug effects/*physiology
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    Cuckoos combat socially transmitted defenses of reed warbler hosts with a plumage polymorphism (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-08-04
    Description: In predator-prey and host-parasite interactions, an individual's ability to combat an opponent often improves with experience--for example, by learning to identify enemy signals. Although learning occurs through individual experience, individuals can also assess threats from social information. Such recognition could promote the evolution of polymorphisms if socially transmitted defenses depend on enemy morph frequency. This would allow rare variants to evade detection. Female brood parasitic common cuckoos, Cuculus canorus, are either gray or rufous. The gray morph is a Batesian mimic whose hawk-like appearance deters host attack. Hosts reject this disguise through social learning, increasing their own defenses when they witness neighbors mobbing a cuckoo. Our experiments reveal that social learning is specific to the cuckoo morph that neighbors mob. Therefore, while neighbors alert hosts to local cuckoo activity, frequency-dependent social information selects for a cuckoo plumage polymorphism to thwart host detection. Our results suggest that selection for mimicry and polymorphisms comes not only from personal experience but also from social learning.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thorogood, Rose -- Davies, Nicholas B -- New York, N.Y. -- Science. 2012 Aug 3;337(6094):578-80. doi: 10.1126/science.1220759.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Zoology, University of Cambridge, Cambridge CB2 3EJ, UK. rt303@cam.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22859487" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Feathers/*anatomy & histology ; Female ; Learning ; *Nesting Behavior ; *Pigmentation ; *Social Behavior ; Songbirds/*anatomy & histology
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    Cancer. Taking a back door to target Myc (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-01-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Evan, Gerard -- New York, N.Y. -- Science. 2012 Jan 20;335(6066):293-4. doi: 10.1126/science.1217819.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of Cambridge, Cambridge CB2 1QW, UK. gie20@cam.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22267799" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Breast Neoplasms/*genetics ; *Cell Transformation, Neoplastic ; Female ; *Genes, myc ; Humans ; Proto-Oncogene Proteins c-myc/*metabolism ; *Transcription, Genetic ; Ubiquitin-Activating Enzymes/*genetics
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  • 90
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    Gap junctions compensate for sublinear dendritic integration in an inhibitory network (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-03-10
    Description: Electrically coupled inhibitory interneurons dynamically control network excitability, yet little is known about how chemical and electrical synapses regulate their activity. Using two-photon glutamate uncaging and dendritic patch-clamp recordings, we found that the dendrites of cerebellar Golgi interneurons acted as passive cables. They conferred distance-dependent sublinear synaptic integration and weakened distal excitatory inputs. Gap junctions were present at a higher density on distal dendrites and contributed substantially to membrane conductance. Depolarization of one Golgi cell increased firing in its neighbors, and inclusion of dendritic gap junctions in interneuron network models enabled distal excitatory synapses to drive network activity more effectively. Our results suggest that dendritic gap junctions counteract sublinear dendritic integration by enabling excitatory synaptic charge to spread into the dendrites of neighboring inhibitory interneurons.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3587282/" 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/PMC3587282/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vervaeke, Koen -- Lorincz, Andrea -- Nusser, Zoltan -- Silver, R Angus -- 064413/Wellcome Trust/United Kingdom -- 090197/Wellcome Trust/United Kingdom -- 095667/Wellcome Trust/United Kingdom -- 293681/European Research Council/International -- 294667/European Research Council/International -- BB/F005490/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- F005490/Biotechnology and Biological Sciences Research Council/United Kingdom -- G0400598/Medical Research Council/United Kingdom -- G0400598(71261)/Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2012 Mar 30;335(6076):1624-8. doi: 10.1126/science.1215101. Epub 2012 Mar 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroscience, Physiology and Pharmacology, University College London, London, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22403180" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Axons/physiology ; Cerebellar Cortex/cytology ; Computer Simulation ; Dendrites/*physiology/*ultrastructure ; Electrical Synapses/*physiology/ultrastructure ; Excitatory Postsynaptic Potentials ; Interneurons/*physiology ; Ion Channels/physiology ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Models, Neurological ; Nerve Net/*physiology/ultrastructure ; *Neural Inhibition ; Patch-Clamp Techniques ; Synapses/physiology ; Synaptic Transmission
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    Pigment pattern formation by contact-dependent depolarization (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-02-11
    Description: Although recent experimental studies have suggested that the interactions among the pigment cells play a key role in the skin pattern formation, details of the mechanism remain largely unknown. By using an in vitro cell culture system, we have detected interactions between the two pigment cell types, melanophores and xanthophores, in the zebrafish skin. During primary culture, the melanophore membrane transiently depolarizes when contacted with the dendrites of a xanthophore. This depolarization triggers melanophore migration to avoid further contact with the xanthophores. Cell depolarization and repulsive movement were not observed in pigment cells with the jaguar mutant, which shows defective segregation of melanophores and xanthophores. The depolarization-repulsion of wild-type pigment cells may explain the pigment cell behaviors generating the stripe pattern of zebrafish.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Inaba, Masafumi -- Yamanaka, Hiroaki -- Kondo, Shigeru -- New York, N.Y. -- Science. 2012 Feb 10;335(6069):677. doi: 10.1126/science.1212821.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Graduate School of Frontier Biosciences, Osaka University, 1-3 Yamadaoka, Suita, Osaka, 565-0871, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22323812" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Communication ; Cell Movement ; Cells, Cultured ; Chromatophores/*physiology ; Melanophores/*physiology ; Membrane Potentials ; Mutation ; Skin/cytology ; *Skin Pigmentation ; Zebrafish/*anatomy & histology/physiology
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    Psychology. Bird-brained illusionists (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-01-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Anderson, Barton L -- New York, N.Y. -- Science. 2012 Jan 20;335(6066):292-3. doi: 10.1126/science.1217451.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Psychology, University of Sydney, Sydney, NSW 2006, Australia. barta@psych.usyd.edu.au〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22267798" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Female ; Male ; *Mating Preference, Animal ; *Optical Illusions ; Passeriformes/*physiology ; *Sexual Behavior, Animal
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    Crystal structure of the calcium release-activated calcium channel Orai (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-11-28
    Description: The plasma membrane protein Orai forms the pore of the calcium release-activated calcium (CRAC) channel and generates sustained cytosolic calcium signals when triggered by depletion of calcium from the endoplasmic reticulum. The crystal structure of Orai from Drosophila melanogaster, determined at 3.35 angstrom resolution, reveals that the calcium channel is composed of a hexameric assembly of Orai subunits arranged around a central ion pore. The pore traverses the membrane and extends into the cytosol. A ring of glutamate residues on its extracellular side forms the selectivity filter. A basic region near the intracellular side can bind anions that may stabilize the closed state. The architecture of the channel differs markedly from other ion channels and gives insight into the principles of selective calcium permeation and gating.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3695727/" 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/PMC3695727/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hou, Xiaowei -- Pedi, Leanne -- Diver, Melinda M -- Long, Stephen B -- GM094273/GM/NIGMS NIH HHS/ -- P30 CA008748/CA/NCI NIH HHS/ -- R01 GM094273/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2012 Dec 7;338(6112):1308-13. doi: 10.1126/science.1228757. Epub 2012 Nov 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Structural Biology Program, Memorial Sloan-Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23180775" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Binding Sites ; Calcium/*chemistry ; Calcium Channels/*chemistry ; Crystallography, X-Ray ; Drosophila Proteins/agonists/*chemistry ; Glutamic Acid/chemistry ; Membrane Proteins/agonists/*chemistry ; Porosity ; Protein Binding ; Protein Structure, Secondary ; Protein Structure, Tertiary
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    Microbiology. Animal behavior and the microbiome (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-10-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ezenwa, Vanessa O -- Gerardo, Nicole M -- Inouye, David W -- Medina, Monica -- Xavier, Joao B -- New York, N.Y. -- Science. 2012 Oct 12;338(6104):198-9. doi: 10.1126/science.1227412.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Odum School of Ecology and Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23066064" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anopheles gambiae/microbiology ; Anxiety/microbiology ; Bacteria/genetics ; Bacterial Adhesion/genetics ; Bacterial Secretion Systems/genetics ; *Behavior, Animal ; Decapodiformes/microbiology ; Drosophila melanogaster/microbiology ; Gastrointestinal Tract/microbiology ; Heteroptera/microbiology ; Host-Pathogen Interactions ; Humans ; Iguanas/microbiology ; Metagenome/*genetics/*physiology ; Mice ; Sexual Behavior, Animal ; Stress, Psychological/microbiology ; *Symbiosis
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    Extremely long-lived nuclear pore proteins in the rat brain (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-02-04
    Description: To combat the functional decline of the proteome, cells use the process of protein turnover to replace potentially impaired polypeptides with new functional copies. We found that extremely long-lived proteins (ELLPs) did not turn over in postmitotic cells of the rat central nervous system. These ELLPs were associated with chromatin and the nuclear pore complex, the central transport channels that mediate all molecular trafficking in and out of the nucleus. The longevity of these proteins would be expected to expose them to potentially harmful metabolites, putting them at risk of accumulating damage over extended periods of time. Thus, it is possible that failure to maintain proper levels and functional integrity of ELLPs in nonproliferative cells might contribute to age-related deterioration in cell and tissue function.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3296478/" 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/PMC3296478/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Savas, Jeffrey N -- Toyama, Brandon H -- Xu, Tao -- Yates, John R 3rd -- Hetzer, Martin W -- F32 AG039127/AG/NIA NIH HHS/ -- F32 AG039127-01A1/AG/NIA NIH HHS/ -- F32AG039127/AG/NIA NIH HHS/ -- HHSN268201000035C/PHS HHS/ -- P01 AG031097/AG/NIA NIH HHS/ -- P01 AG031097-03/AG/NIA NIH HHS/ -- P30 CA014195/CA/NCI NIH HHS/ -- P30 CA014195-35/CA/NCI NIH HHS/ -- P41 RR011823/RR/NCRR NIH HHS/ -- P41 RR011823-14/RR/NCRR NIH HHS/ -- R01 MH067880/MH/NIMH NIH HHS/ -- R01 MH067880-08/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2012 Feb 24;335(6071):942. doi: 10.1126/science.1217421. Epub 2012 Feb 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemical Physiology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22300851" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/cytology/*metabolism ; Cell Aging ; Chromatin/metabolism ; Female ; Half-Life ; Liver/metabolism ; Mitosis ; Nuclear Pore/*metabolism ; Nuclear Pore Complex Proteins/*metabolism ; Proteome/metabolism ; Rats ; Rats, Sprague-Dawley ; Time Factors
    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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  • 96
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    Predatory fish select for coordinated collective motion in virtual prey (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-08-21
    Description: Movement in animal groups is highly varied and ranges from seemingly disordered motion in swarms to coordinated aligned motion in flocks and schools. These social interactions are often thought to reduce risk from predators, despite a lack of direct evidence. We investigated risk-related selection for collective motion by allowing real predators (bluegill sunfish) to hunt mobile virtual prey. By fusing simulated and real animal behavior, we isolated predator effects while controlling for confounding factors. Prey with a tendency to be attracted toward, and to align direction of travel with, near neighbors tended to form mobile coordinated groups and were rarely attacked. These results demonstrate that collective motion could evolve as a response to predation, without prey being able to detect and respond to predators.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ioannou, C C -- Guttal, V -- Couzin, I D -- New York, N.Y. -- Science. 2012 Sep 7;337(6099):1212-5. doi: 10.1126/science.1218919. Epub 2012 Aug 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA. C.C.Ioannou@bristol.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22903520" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Behavior, Animal ; Biological Evolution ; Computer Simulation ; Ecosystem ; Movement ; Perciformes/*physiology ; *Predatory Behavior
    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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  • 97
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    Cell biology. Sheddase gets guidance (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-01-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lichtenthaler, Stefan F -- New York, N.Y. -- Science. 2012 Jan 13;335(6065):179-80. doi: 10.1126/science.1216815.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉DZNE-German Center for Neurodegenerative Diseases Munich, 80336 Munich, Germany. stefan.lichtenthaler@dzne.lmu.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22246765" target="_blank"〉PubMed〈/a〉
    Keywords: ADAM Proteins/*metabolism ; Animals ; Carrier Proteins/*metabolism ; Humans ; *Immunity, Innate ; Lipopolysaccharides/*immunology ; Listeriosis/*immunology ; Shock, Septic/*immunology ; *Signal Transduction ; Tumor Necrosis Factor-alpha/*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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  • 98
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    Developmental biology. Turing pattern fingered for digit formation (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-12-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vogel, Gretchen -- New York, N.Y. -- Science. 2012 Dec 14;338(6113):1406. doi: 10.1126/science.338.6113.1406.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23239707" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Body Patterning/*genetics ; Genes, Homeobox/*physiology ; Polydactyly/*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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  • 99
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    Public health and biosecurity. The obligation to prevent the next dual-use controversy (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-02-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Faden, Ruth R -- Karron, Ruth A -- New York, N.Y. -- Science. 2012 Feb 17;335(6070):802-4. doi: 10.1126/science.1219668. Epub 2012 Feb 9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Johns Hopkins Berman Institute of Bioethics, Johns Hopkins University, Baltimore, MD 21205, USA. rfaden@jhu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22323739" target="_blank"〉PubMed〈/a〉
    Keywords: Access to Information/ethics/legislation & jurisprudence ; Advisory Committees ; Animals ; *Biomedical Research/ethics/legislation & jurisprudence ; Bioterrorism/*prevention & control ; Birds ; Humans ; *Influenza A Virus, H5N1 Subtype ; Influenza in Birds/transmission/virology ; Influenza, Human/transmission/*virology ; Information Dissemination/*ethics/legislation & jurisprudence ; Internationality ; National Institutes of Health (U.S.) ; Pandemics/prevention & control ; Public Health/*ethics/legislation & jurisprudence ; Publishing/ethics ; Security Measures ; United States
    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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    The structures of COPI-coated vesicles reveal alternate coatomer conformations and interactions (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-05-26
    Description: Transport between compartments of eukaryotic cells is mediated by coated vesicles. The archetypal protein coats COPI, COPII, and clathrin are conserved from yeast to human. Structural studies of COPII and clathrin coats assembled in vitro without membranes suggest that coat components assemble regular cages with the same set of interactions between components. Detailed three-dimensional structures of coated membrane vesicles have not been obtained. Here, we solved the structures of individual COPI-coated membrane vesicles by cryoelectron tomography and subtomogram averaging of in vitro reconstituted budding reactions. The coat protein complex, coatomer, was observed to adopt alternative conformations to change the number of other coatomers with which it interacts and to form vesicles with variable sizes and shapes. This represents a fundamentally different basis for vesicle coat assembly.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Faini, Marco -- Prinz, Simone -- Beck, Rainer -- Schorb, Martin -- Riches, James D -- Bacia, Kirsten -- Brugger, Britta -- Wieland, Felix T -- Briggs, John A G -- New York, N.Y. -- Science. 2012 Jun 15;336(6087):1451-4. doi: 10.1126/science.1221443. Epub 2012 May 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Structural and Computational Biology Unit, European Molecular Biology Laboratory, Meyerhofstrasse 1, 69117 Heidelberg, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22628556" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; COP-Coated Vesicles/*chemistry/*ultrastructure ; Coat Protein Complex I/*chemistry ; Coatomer Protein/*chemistry ; Cryoelectron Microscopy ; Electron Microscope Tomography ; Image Processing, Computer-Assisted ; Mice ; Models, Molecular ; Protein Conformation
    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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