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  • 1
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2006-05-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stanley, George D Jr -- New York, N.Y. -- Science. 2006 May 12;312(5775):857-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University of Montana Paleontology Center, Missoula, MT 59812, USA. george.stanley@umontana.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16690848" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; Animals ; Anthozoa/growth & development/*physiology ; *Biological Evolution ; Calcification, Physiologic ; Calcium Carbonate/metabolism ; Carbon Dioxide/metabolism ; Climate ; *Ecosystem ; Eukaryota/growth & development/*physiology ; Fossils ; Photosynthesis ; Sunlight ; *Symbiosis
    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
    Publication Date: 2006-12-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Glenner, Henrik -- Thomsen, Philip Francis -- Hebsgaard, Martin Bay -- Sorensen, Martin Vinther -- Willerslev, Eske -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2006 Dec 22;314(5807):1883-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Ancient Genetics, Department of Evolutionary Biology, Biological Institute, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen, Denmark. ewillerslev@bi.ku.dk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17185588" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Biological ; Animals ; *Biological Evolution ; *Crustacea/anatomy & histology/classification/genetics/physiology ; Ecosystem ; Fossils ; Fresh Water ; *Insects/anatomy & histology/classification/genetics/physiology ; Phylogeny ; Seawater ; Time
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
    Publication Date: 2006-01-10
    Description: Attine ants engage in a quadripartite symbiosis with fungi they cultivate for food, specialized garden parasites, and parasite-inhibiting bacteria. Molecular phylogenetic evidence supports an ancient host-pathogen association between the ant-cultivar mutualism and the garden parasite. Here we show that ants rear the antibiotic-producing bacteria in elaborate cuticular crypts, supported by unique exocrine glands, and that these structures have been highly modified across the ants' evolutionary history. This specialized structural evolution, together with the absence of these bacteria and modifications in other ant genera that do not grow fungus, indicate that the bacteria have an ancient and coevolved association with the ants, their fungal cultivar, and the garden parasite.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Currie, Cameron R -- Poulsen, Michael -- Mendenhall, John -- Boomsma, Jacobus J -- Billen, Johan -- New York, N.Y. -- Science. 2006 Jan 6;311(5757):81-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Bacteriology, University of Wisconsin at Madison, Madison, WI 53706, USA. currie@bact.wisc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16400148" target="_blank"〉PubMed〈/a〉
    Keywords: Actinomycetales/growth & development/*physiology ; Animals ; Anti-Bacterial Agents/biosynthesis ; Antibiosis ; Ants/*anatomy & histology/*microbiology/physiology/ultrastructure ; *Biological Evolution ; Exocrine Glands/anatomy & histology/microbiology ; Female ; Fungi/*growth & development ; Hypocreales/*growth & development ; Microscopy, Electron, Scanning ; Microscopy, Electron, Transmission ; Phylogeny ; Species Specificity ; *Symbiosis
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2006-04-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Redecker, Dirk -- New York, N.Y. -- Science. 2006 Apr 7;312(5770):53-4; author reply 53-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16601175" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Fungi/classification/genetics ; *Phylogeny
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  • 5
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2006-12-13
    Description: Humans behave altruistically in natural settings and experiments. A possible explanation-that groups with more altruists survive when groups compete-has long been judged untenable on empirical grounds for most species. But there have been no empirical tests of this explanation for humans. My empirical estimates show that genetic differences between early human groups are likely to have been great enough so that lethal intergroup competition could account for the evolution of altruism. Crucial to this process were distinctive human practices such as sharing food beyond the immediate family, monogamy, and other forms of reproductive leveling. These culturally transmitted practices presuppose advanced cognitive and linguistic capacities, possibly accounting for the distinctive forms of altruism found in our species.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bowles, Samuel -- New York, N.Y. -- Science. 2006 Dec 8;314(5805):1569-72.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Santa Fe Institute, 1399 Hyde Park Road, Santa Fe, NM 87501, USA, and Universita di Siena, 17 Piazza San Francesco, Siena, Italy. bowles@santafe.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17158320" target="_blank"〉PubMed〈/a〉
    Keywords: *Altruism ; Archaeology ; *Biological Evolution ; Climate ; *Competitive Behavior ; Cultural Evolution ; Genetic Variation ; Genetics, Population ; *Group Processes ; Humans ; Mathematics ; Models, Theoretical ; Population Dynamics ; *Reproduction ; Selection, Genetic ; Violence ; Warfare
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
    Publication Date: 2006-12-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Leslie, Mitch -- New York, N.Y. -- Science. 2006 Dec 22;314(5807):1865.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17185579" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bone Morphogenetic Proteins/*pharmacology ; Bone and Bones/*cytology ; Cell Differentiation ; Cell Lineage ; Cells, Cultured ; Extracellular Matrix ; Myoblasts/cytology ; Rats ; Stem Cells/*cytology
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  • 7
    Publication Date: 2006-02-14
    Description: Development of the animal body plan is controlled by large gene regulatory networks (GRNs), and hence evolution of body plans must depend upon change in the architecture of developmental GRNs. However, these networks are composed of diverse components that evolve at different rates and in different ways. Because of the hierarchical organization of developmental GRNs, some kinds of change affect terminal properties of the body plan such as occur in speciation, whereas others affect major aspects of body plan morphology. A notable feature of the paleontological record of animal evolution is the establishment by the Early "Cambrian of virtually all phylum-level body plans. We identify a class of GRN component, the kernels" of the network, which, because of their developmental role and their particular internal structure, are most impervious to change. Conservation of phyletic body plans may have been due to the retention since pre-Cambrian time of GRN kernels, which underlie development of major body parts.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Davidson, Eric H -- Erwin, Douglas H -- HD37105/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 2006 Feb 10;311(5762):796-800.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biology 156-29, California Institute of Technology, Pasadena, CA 91125, USA. davidson@caltech.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16469913" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Biological/genetics ; Animals ; *Biological Evolution ; Body Patterning/*genetics ; Embryonic Development ; Fossils ; *Gene Expression Regulation, Developmental ; Genes, Regulator ; Genetic Speciation ; Morphogenesis/*genetics ; Signal Transduction/genetics ; Transcription Factors/genetics/metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2006-05-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roberts, David L -- New York, N.Y. -- Science. 2006 May 19;312(5776):997-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16709765" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Birds ; Conservation of Natural Resources
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  • 9
    Publication Date: 2006-05-27
    Description: We describe a pathogenetic mechanism underlying a variant form of the inherited blood disorder alpha thalassemia. Association studies of affected individuals from Melanesia localized the disease trait to the telomeric region of human chromosome 16, which includes the alpha-globin gene cluster, but no molecular defects were detected by conventional approaches. After resequencing and using a combination of chromatin immunoprecipitation and expression analysis on a tiled oligonucleotide array, we identified a gain-of-function regulatory single-nucleotide polymorphism (rSNP) in a nongenic region between the alpha-globin genes and their upstream regulatory elements. The rSNP creates a new promoterlike element that interferes with normal activation of all downstream alpha-like globin genes. Thus, our work illustrates a strategy for distinguishing between neutral and functionally important rSNPs, and it also identifies a pathogenetic mechanism that could potentially underlie other genetic diseases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉De Gobbi, Marco -- Viprakasit, Vip -- Hughes, Jim R -- Fisher, Chris -- Buckle, Veronica J -- Ayyub, Helena -- Gibbons, Richard J -- Vernimmen, Douglas -- Yoshinaga, Yuko -- de Jong, Pieter -- Cheng, Jan-Fang -- Rubin, Edward M -- Wood, William G -- Bowden, Don -- Higgs, Douglas R -- MC_U137961143/Medical Research Council/United Kingdom -- MC_U137961145/Medical Research Council/United Kingdom -- MC_U137961147/Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2006 May 26;312(5777):1215-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, Oxford, OX3 9DS, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16728641" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; Cells, Cultured ; Chromatin Immunoprecipitation ; Chromosomes, Human, Pair 16/*genetics ; Erythroblasts ; GATA1 Transcription Factor/metabolism ; Gene Expression ; Gene Expression Profiling ; Globins/*genetics ; Haplotypes ; Humans ; Melanesia ; Minisatellite Repeats ; Multigene Family ; Oligonucleotide Array Sequence Analysis ; *Polymorphism, Single Nucleotide ; *Promoter Regions, Genetic ; Regulatory Elements, Transcriptional ; Transcription, Genetic ; alpha-Thalassemia/*genetics
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  • 10
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2006-07-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nathan, Carl -- New York, N.Y. -- Science. 2006 Jun 30;312(5782):1874-5; author reply 1874-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16809512" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacterial Infections/enzymology/*immunology ; Cell Culture Techniques ; Cell Differentiation ; Cells, Cultured ; Humans ; Macrophages/cytology/*enzymology ; Mice ; Nitric Oxide Synthase Type II/biosynthesis/*metabolism ; Tuberculosis/enzymology/immunology
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  • 11
    Publication Date: 2006-07-15
    Description: Inositol 1,4,5-trisphosphate receptors (IP3Rs) release calcium ions, Ca2+, from intracellular stores, but their roles in mediating Ca2+ entry are unclear. IP3 stimulated opening of very few (1.9 +/- 0.2 per cell) Ca2+-permeable channels in whole-cell patch-clamp recording of DT40 chicken or mouse B cells. Activation of the B cell receptor (BCR) in perforated-patch recordings evoked the same response. IP3 failed to stimulate intracellular or plasma membrane (PM) channels in cells lacking IP3R. Expression of IP3R restored both responses. Mutations within the pore affected the conductances of IP3-activated PM and intracellular channels similarly. An impermeant pore mutant abolished BCR-evoked Ca2+ signals, and PM IP3Rs were undetectable. After introduction of an alpha-bungarotoxin binding site near the pore, PM IP3Rs were modulated by extracellular alpha-bungarotoxin. IP(3)Rs are unusual among endoplasmic reticulum proteins in being also functionally expressed at the PM, where very few IP3Rs contribute substantially to the Ca2+ entry evoked by the BCR.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dellis, Olivier -- Dedos, Skarlatos G -- Tovey, Stephen C -- Taufiq-Ur-Rahman -- Dubel, Stefan J -- Taylor, Colin W -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2006 Jul 14;313(5784):229-33.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, Tennis Court Road, Cambridge, CB2 1PD, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16840702" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/metabolism ; Bungarotoxins/metabolism/pharmacology ; Calcium/*metabolism ; Calcium Channels/genetics/*metabolism ; *Calcium Signaling ; Cell Membrane/*metabolism ; Cells, Cultured ; Chickens ; Electric Conductivity ; Endoplasmic Reticulum/metabolism ; Inositol 1,4,5-Trisphosphate/metabolism ; Inositol 1,4,5-Trisphosphate Receptors ; *Ion Channel Gating ; Mice ; Nuclear Envelope/metabolism ; Patch-Clamp Techniques ; Point Mutation ; Rats ; Receptors, Antigen, B-Cell/metabolism ; Receptors, Cytoplasmic and Nuclear/antagonists & inhibitors/genetics/*metabolism ; Transfection
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  • 12
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2006-09-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rokas, Antonis -- New York, N.Y. -- Science. 2006 Sep 29;313(5795):1897-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Broad Institute of Massachusetts Institute of Technology and Harvard University, Microbial Genome Analysis and Annotation, 7 Cambridge Center, Cambridge, MA 02142, USA. arokas@mit.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17008515" target="_blank"〉PubMed〈/a〉
    Keywords: Algorithms ; Animals ; *Biological Evolution ; Computational Biology ; Genome ; *Genomics ; *Phylogeny ; Polymorphism, Genetic ; Sequence Analysis, DNA
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  • 13
    Publication Date: 2006-11-25
    Description: For microbial pathogens, phylogeographic differentiation seems to be relatively common. However, the neutral population structure of Salmonella enterica serovar Typhi reflects the continued existence of ubiquitous haplotypes over millennia. In contrast, clinical use of fluoroquinolones has yielded at least 15 independent gyrA mutations within a decade and stimulated clonal expansion of haplotype H58 in Asia and Africa. Yet, antibiotic-sensitive strains and haplotypes other than H58 still persist despite selection for antibiotic resistance. Neutral evolution in Typhi appears to reflect the asymptomatic carrier state, and adaptive evolution depends on the rapid transmission of phenotypic changes through acute infections.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2652035/" 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/PMC2652035/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roumagnac, Philippe -- Weill, Francois-Xavier -- Dolecek, Christiane -- Baker, Stephen -- Brisse, Sylvain -- Chinh, Nguyen Tran -- Le, Thi Anh Hong -- Acosta, Camilo J -- Farrar, Jeremy -- Dougan, Gordon -- Achtman, Mark -- 076962/Wellcome Trust/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2006 Nov 24;314(5803):1301-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max-Planck-Institut fur Infektionsbiologie, Department of Molecular Biology, Chariteplatz 1, 10117 Berlin, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17124322" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; Africa ; Alleles ; Anti-Bacterial Agents/pharmacology/therapeutic use ; Asia ; *Biological Evolution ; Carrier State/*microbiology ; DNA Gyrase/genetics ; Drug Resistance, Bacterial ; Drug Resistance, Multiple, Bacterial ; Fluoroquinolones/pharmacology/therapeutic use ; *Genes, Bacterial ; Genetic Variation ; Haplotypes ; Humans ; Molecular Sequence Data ; Mutation ; Polymorphism, Genetic ; Polymorphism, Single Nucleotide ; Salmonella typhi/drug effects/*genetics ; Selection, Genetic ; Typhoid Fever/drug therapy/*microbiology
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  • 14
    Publication Date: 2006-11-18
    Description: Our knowledge of Neanderthals is based on a limited number of remains and artifacts from which we must make inferences about their biology, behavior, and relationship to ourselves. Here, we describe the characterization of these extinct hominids from a new perspective, based on the development of a Neanderthal metagenomic library and its high-throughput sequencing and analysis. Several lines of evidence indicate that the 65,250 base pairs of hominid sequence so far identified in the library are of Neanderthal origin, the strongest being the ascertainment of sequence identities between Neanderthal and chimpanzee at sites where the human genomic sequence is different. These results enabled us to calculate the human-Neanderthal divergence time based on multiple randomly distributed autosomal loci. Our analyses suggest that on average the Neanderthal genomic sequence we obtained and the reference human genome sequence share a most recent common ancestor approximately 706,000 years ago, and that the human and Neanderthal ancestral populations split approximately 370,000 years ago, before the emergence of anatomically modern humans. Our finding that the Neanderthal and human genomes are at least 99.5% identical led us to develop and successfully implement a targeted method for recovering specific ancient DNA sequences from metagenomic libraries. This initial analysis of the Neanderthal genome advances our understanding of the evolutionary relationship of Homo sapiens and Homo neanderthalensis and signifies the dawn of Neanderthal genomics.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2583069/" 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/PMC2583069/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Noonan, James P -- Coop, Graham -- Kudaravalli, Sridhar -- Smith, Doug -- Krause, Johannes -- Alessi, Joe -- Chen, Feng -- Platt, Darren -- Paabo, Svante -- Pritchard, Jonathan K -- Rubin, Edward M -- 1-F32-GM074367/GM/NIGMS NIH HHS/ -- HL066681/HL/NHLBI NIH HHS/ -- R01 HG002772/HG/NHGRI NIH HHS/ -- R01 HG002772-01/HG/NHGRI NIH HHS/ -- R01 HG002772-1/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2006 Nov 17;314(5802):1113-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉U.S. Department of Energy Joint Genome Institute, 2800 Mitchell Drive, Walnut Creek, CA 94598, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17110569" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Bone and Bones ; Cell Nucleus ; DNA/*genetics/isolation & purification ; DNA, Mitochondrial ; *Fossils ; Gene Pool ; Genome ; Genome, Human ; Genomic Library ; History, Ancient ; Hominidae/*genetics ; Humans ; Male ; Molecular Sequence Data ; Pan troglodytes/genetics ; Polymerase Chain Reaction ; Sequence Alignment ; *Sequence Analysis, DNA/methods ; Time
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  • 15
    Publication Date: 2006-08-26
    Description: The most obvious key synapomorphy of the therian mammals is the tribosphenic pattern of their molars. Tribosphenic teeth are capable of both shearing and grinding, which substantially increase effectiveness of food processing and, in turn, permit evolution of a wide range of dietary specializations. Functional tribospheny developed repeatedly during mammalian evolution but was successful only in the Boreosphenida. The earliest stage in the development of boreosphenidan tribospheny has remained poorly understood, being documented only by lower molars of aegialodontids. Here, we report a known upper molar of an aegialodontid mammal, Kielantherium, from the Early Cretaceous of Mongolia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lopatin, Alexey V -- Averianov, Alexander O -- New York, N.Y. -- Science. 2006 Aug 25;313(5790):1092.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Paleontological Institute, Russian Academy of Sciences, Profsojuznaya ul. 123, Moscow 117997, Russia. alopat@paleo.ru〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16931755" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Dentition ; History, Ancient ; *Mammals/anatomy & histology ; Molar/*anatomy & histology ; Mongolia ; Paleodontology
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  • 16
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2006-12-13
    Description: Cooperation is needed for evolution to construct new levels of organization. Genomes, cells, multicellular organisms, social insects, and human society are all based on cooperation. Cooperation means that selfish replicators forgo some of their reproductive potential to help one another. But natural selection implies competition and therefore opposes cooperation unless a specific mechanism is at work. Here I discuss five mechanisms for the evolution of cooperation: kin selection, direct reciprocity, indirect reciprocity, network reciprocity, and group selection. For each mechanism, a simple rule is derived that specifies whether natural selection can lead to cooperation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3279745/" 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/PMC3279745/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nowak, Martin A -- 1R01GM078986-01/GM/NIGMS NIH HHS/ -- R01 GM078986/GM/NIGMS NIH HHS/ -- R01 GM078986-04/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2006 Dec 8;314(5805):1560-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Program for Evolutionary Dynamics, Department of Organismic and Evolutionary Biology, and Department of Mathematics, Harvard University, Cambridge, MA 02138, USA. martin_nowak@harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17158317" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; Community Networks ; *Cooperative Behavior ; Family ; Game Theory ; Helping Behavior ; Humans ; Mathematics ; Selection, Genetic
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  • 17
    Publication Date: 2006-03-18
    Description: Rapid evolution of asexual populations, such as that of cancer cells or of microorganisms developing drug resistance, can include the simultaneous spread of distinct beneficial mutations. We demonstrate that evolution in such cases is driven by the fitness effects and appearance times of only a small minority of favorable mutations. The complexity of the mutation-selection process is thereby greatly reduced, and much of the evolutionary dynamics can be encapsulated in two parameters-an effective selection coefficient and effective rate of beneficial mutations. We confirm this theoretical finding and estimate the effective parameters for evolving populations of fluorescently labeled Escherichia coli. The effective parameters constitute a simple description and provide a natural standard for comparing adaptation between species and across environments.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hegreness, Matthew -- Shoresh, Noam -- Hartl, Daniel -- Kishony, Roy -- New York, N.Y. -- Science. 2006 Mar 17;311(5767):1615-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Bauer Center for Genomics Research, Harvard University, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16543462" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Biological ; Bacterial Proteins/analysis/genetics ; *Biological Evolution ; Escherichia coli/*genetics/*physiology ; Genetics, Population ; Green Fluorescent Proteins/analysis/genetics ; Luminescent Proteins/analysis/genetics ; Mathematics ; Models, Genetic ; *Mutation
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2006-10-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, Charles R -- New York, N.Y. -- Science. 2006 Oct 6;314(5796):66-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Organismic and Evolutionary Biology and Earth and Planetary Sciences, Harvard University, 26 Oxford Street Cambridge, MA 02138, USA. cmarshal@oeb.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17023640" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; *Biological Evolution ; *Bivalvia/anatomy & histology/classification ; *Fossils ; Geography ; Phylogeny ; Population Dynamics ; *Tropical Climate
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  • 19
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2006-07-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Szathmary, Eors -- New York, N.Y. -- Science. 2006 Jul 21;313(5785):306-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Biology, Eotvos University Budapest, and Collegium Budapest (Institute for Advanced Study), 2 Szentharomsag utca, H-1014 Budapest, Hungary. szathmary@colbud.hu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16857926" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; Chemical Phenomena ; Chemistry ; Computational Biology ; Cooperative Behavior ; Cultural Evolution ; Exobiology ; Humans ; Language ; Models, Biological ; Models, Theoretical ; Molecular Biology ; Origin of Life ; *Research ; Selection, Genetic
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  • 20
    Publication Date: 2006-02-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kerr, Richard A -- New York, N.Y. -- Science. 2006 Feb 17;311(5763):931.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16484458" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Fossils ; Geologic Sediments ; *Paleontology ; Regression Analysis ; Time
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  • 21
    Publication Date: 2006-07-11
    Description: The evolution of new combinations of bacterial properties contributes to biodiversity and the emergence of new diseases. We investigated the capacity for bacterial divergence with a chemostat culture of Escherichia coli. A clonal population radiated into more than five phenotypic clusters within 26 days, with multiple variations in global regulation, metabolic strategies, surface properties, and nutrient permeability pathways. Most isolates belonged to a single ecotype, and neither periodic selection events nor ecological competition for a single niche prevented an adaptive radiation with a single resource. The multidirectional exploration of fitness space is an underestimated ingredient to bacterial success even in unstructured environments.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maharjan, Ram -- Seeto, Shona -- Notley-McRobb, Lucinda -- Ferenci, Thomas -- New York, N.Y. -- Science. 2006 Jul 28;313(5786):514-7. Epub 2006 Jul 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Molecular and Microbial Biosciences, University of Sydney, Sydney, New South Wales 2006, Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16825532" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; *Biological Evolution ; Cell Membrane Permeability ; Culture Media ; *Ecosystem ; Environment ; Escherichia coli/classification/*genetics/growth & development/*physiology ; Gene Expression Regulation, Bacterial ; *Genetic Variation ; Genotype ; Glucose/metabolism ; Mutation ; Phenotype ; Phylogeny ; Selection, Genetic ; Surface Properties
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2006-11-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Enserink, Martin -- New York, N.Y. -- Science. 2006 Nov 24;314(5803):1235-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17124302" target="_blank"〉PubMed〈/a〉
    Keywords: Chemistry ; *Cooking ; *Food ; France ; History, 20th Century ; History, 21st Century
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2006-08-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hayashi, Tetsuya -- New York, N.Y. -- Science. 2006 Aug 11;313(5788):772-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Bioenvironmental Science, Frontier Science Research Center, University of Miyazaki, 5200 Kiyotake, Miyazaki 889-1692, Japan. thayash@med.miyazaki-u.ac.jp〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16902117" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Cycle ; Cell Death ; Cells, Cultured ; Colon/cytology/microbiology ; *DNA Damage ; Escherichia coli/classification/genetics/*pathogenicity/*physiology ; *Genomic Islands ; Humans ; Intestinal Mucosa/cytology/microbiology ; Mutagens/*metabolism ; Peptides/*metabolism ; Polyketide Synthases/genetics/metabolism ; Virulence Factors/*biosynthesis
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2006-12-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Irene A -- New York, N.Y. -- Science. 2006 Dec 8;314(5805):1558-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Health Sciences and Technology at Harvard Medical School and Massachusetts Institute of Technology, Boston, MA 02115, USA. ichen@post.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17158315" target="_blank"〉PubMed〈/a〉
    Keywords: Awards and Prizes ; *Biological Evolution ; *Cells ; Hydrogen-Ion Concentration ; Lipid Bilayers ; *Liposomes/chemistry ; Models, Biological ; *Origin of Life ; Osmotic Pressure ; *Rna ; RNA, Catalytic
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  • 25
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2006-09-09
    Description: The origin and possible antiquity of faunas at deep-sea hydrothermal vents and seeps have been debated since their discovery. We used the fossil record of seep mollusks to show that the living seep genera have significantly longer geologic ranges than the marine mollusks in general, but have ranges similar to those of deep-sea taxa, suggesting that seep faunas may be shaped by the factors that drive the evolution of life in the deep sea in general. Our data indicate that deep-sea anoxic/dysoxic events did not affect seep faunas, casting doubt on the suggested anoxic nature and/or global extent of these events.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kiel, Steffen -- Little, Crispin T S -- New York, N.Y. -- Science. 2006 Sep 8;313(5792):1429-31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Earth and Environment, University of Leeds, Leeds LS2 9JT, UK. steffen.kiel@gmx.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16960004" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Bivalvia/classification/physiology ; Cold Temperature ; *Ecosystem ; *Fossils ; Gastropoda/classification/physiology ; *Mollusca/classification/physiology ; Polyplacophora/classification/physiology ; *Seawater ; Symbiosis
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  • 26
    Publication Date: 2006-04-15
    Description: Nee et al. (Reports, 19 August 2005, p. 1236) used a null model to argue that life history invariants are illusions. We show that their results are largely inconsequential for life history theory because the authors confound two definitions of invariance, and rigorous analysis of their null model demonstrates that it does not match observed data.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Savage, Van M -- White, Ethan P -- Moses, Melanie E -- Ernest, S K Morgan -- Enquist, Brian J -- Charnov, Eric L -- New York, N.Y. -- Science. 2006 Apr 14;312(5771):198; author reply 198.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Bauer Center for Genomics Research, Harvard University, Cambridge, MA 02138, USA. vsavage@cgr.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16614200" target="_blank"〉PubMed〈/a〉
    Keywords: Analysis of Variance ; Animals ; *Biological Evolution ; Body Size ; *Body Weight ; Clutch Size ; *Growth ; Longevity ; Mathematics ; *Models, Biological ; Regression Analysis ; *Reproduction ; Sexual Maturation
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  • 27
    Publication Date: 2006-07-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, Constance -- New York, N.Y. -- Science. 2006 Jun 30;312(5782):1867.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16809505" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; Brain/*anatomy & histology ; Genetic Variation ; Humans ; Intelligence ; Organ Size ; Selection, Genetic
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  • 28
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2006-06-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, Constance -- New York, N.Y. -- Science. 2006 Jun 2;312(5778):1292.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16741084" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; Biology/*education/legislation & jurisprudence ; Georgia ; Religion and Science ; Teaching/*legislation & jurisprudence ; *Textbooks as Topic
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  • 29
    Publication Date: 2006-09-02
    Description: Draft genome sequences have been determined for the soybean pathogen Phytophthora sojae and the sudden oak death pathogen Phytophthora ramorum. Oomycetes such as these Phytophthora species share the kingdom Stramenopila with photosynthetic algae such as diatoms, and the presence of many Phytophthora genes of probable phototroph origin supports a photosynthetic ancestry for the stramenopiles. Comparison of the two species' genomes reveals a rapid expansion and diversification of many protein families associated with plant infection such as hydrolases, ABC transporters, protein toxins, proteinase inhibitors, and, in particular, a superfamily of 700 proteins with similarity to known oomycete avirulence genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tyler, Brett M -- Tripathy, Sucheta -- Zhang, Xuemin -- Dehal, Paramvir -- Jiang, Rays H Y -- Aerts, Andrea -- Arredondo, Felipe D -- Baxter, Laura -- Bensasson, Douda -- Beynon, Jim L -- Chapman, Jarrod -- Damasceno, Cynthia M B -- Dorrance, Anne E -- Dou, Daolong -- Dickerman, Allan W -- Dubchak, Inna L -- Garbelotto, Matteo -- Gijzen, Mark -- Gordon, Stuart G -- Govers, Francine -- Grunwald, Niklaus J -- Huang, Wayne -- Ivors, Kelly L -- Jones, Richard W -- Kamoun, Sophien -- Krampis, Konstantinos -- Lamour, Kurt H -- Lee, Mi-Kyung -- McDonald, W Hayes -- Medina, Monica -- Meijer, Harold J G -- Nordberg, Eric K -- Maclean, Donald J -- Ospina-Giraldo, Manuel D -- Morris, Paul F -- Phuntumart, Vipaporn -- Putnam, Nicholas H -- Rash, Sam -- Rose, Jocelyn K C -- Sakihama, Yasuko -- Salamov, Asaf A -- Savidor, Alon -- Scheuring, Chantel F -- Smith, Brian M -- Sobral, Bruno W S -- Terry, Astrid -- Torto-Alalibo, Trudy A -- Win, Joe -- Xu, Zhanyou -- Zhang, Hongbin -- Grigoriev, Igor V -- Rokhsar, Daniel S -- Boore, Jeffrey L -- BB/C509123/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- New York, N.Y. -- Science. 2006 Sep 1;313(5791):1261-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Virginia Bioinformatics Institute, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA. bmtyler@vt.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16946064" target="_blank"〉PubMed〈/a〉
    Keywords: Algal Proteins/genetics/physiology ; *Biological Evolution ; DNA, Algal/*genetics ; Genes ; *Genome ; Hydrolases/genetics/metabolism ; Photosynthesis/genetics ; Phylogeny ; Physical Chromosome Mapping ; Phytophthora/classification/*genetics/*pathogenicity/physiology ; Plant Diseases/microbiology ; Polymorphism, Single Nucleotide ; Repetitive Sequences, Nucleic Acid ; Sequence Analysis, DNA ; Symbiosis ; Toxins, Biological/genetics
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2006-02-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, Constance -- New York, N.Y. -- Science. 2006 Feb 24;311(5764):1083.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16497892" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; Biological Science Disciplines/*education ; *Curriculum ; Ohio ; Religion and Science
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2006-02-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, Constance -- New York, N.Y. -- Science. 2006 Feb 10;311(5762):769-71.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16469893" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Culture ; Curriculum ; Earth (Planet) ; Geological Phenomena ; Geology ; Humans ; *Religion and Science ; *Students ; Teaching ; United States ; *Universities
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  • 32
    Publication Date: 2006-12-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Balter, Michael -- New York, N.Y. -- Science. 2006 Dec 22;314(5807):1871-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17185582" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; *Brain/anatomy & histology/physiology ; China ; Chromosomes, Human, Y/genetics ; *Cognition ; History, 20th Century ; History, 21st Century ; Humans ; Intelligence/genetics ; Nerve Tissue Proteins/genetics ; Selection, Genetic ; United States
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2006-11-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Balter, Michael -- New York, N.Y. -- Science. 2006 Nov 17;314(5802):1071.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17110550" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Evolution, Molecular ; Genome, Human ; History, Ancient ; Hominidae/*genetics ; Humans ; Nerve Tissue Proteins/genetics ; Paleontology ; Selection, Genetic ; Sexual Behavior ; tau Proteins/genetics
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2006-03-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Falkowski, Paul G -- New York, N.Y. -- Science. 2006 Mar 24;311(5768):1724-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Environmental Biophysics and Molecular Ecology Program, Institute of Marine and Coastal Sciences and Department of Geological Sciences, Rutgers University, New Brunswick, NJ 08901, USA. falko@imcs.rutgers.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16556831" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Computational Biology ; Electron Transport ; Electrons ; Energy Metabolism ; Eukaryotic Cells/metabolism ; *Evolution, Molecular ; Gene Duplication ; Gene Transfer, Horizontal ; *Metabolism ; Oxidation-Reduction ; Oxygen/*metabolism ; Photosynthesis ; Reactive Oxygen Species/metabolism ; Selection, Genetic ; Water/metabolism
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  • 35
    Publication Date: 2007-03-17
    Description: Population dynamics and evolutionary change are linked by the fundamental biological processes of birth and death. This means that population growth may correlate with the strength of selection, whereas evolutionary change can leave an ecological signature. We decompose population growth in an age-structured population into contributions from variation in a quantitative trait. We report that the distribution of body sizes within a population of Soay sheep can markedly influence population dynamics, accounting for up to one-fifth of observed population growth. Our results suggest that there is substantial opportunity for evolutionary dynamics to leave an ecological signature and visa versa.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pelletier, Fanie -- Clutton-Brock, Tim -- Pemberton, Josephine -- Tuljapurkar, Shripad -- Coulson, Tim -- P01 AG 22500/AG/NIA NIH HHS/ -- P01 AG022500/AG/NIA NIH HHS/ -- P01 AG022500-04/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 2007 Mar 16;315(5818):1571-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biology and the Natural Environment Research Council (NERC) Centre for Population Biology, Imperial College London, Silwood Park, Ascot, Berkshire, SL5 7PY, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17363672" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Birth Weight ; Body Size/genetics ; Body Weight/genetics ; Ecology ; Environment ; Female ; *Genetic Variation ; Hindlimb/anatomy & histology ; Male ; Mathematics ; Population Dynamics ; Population Growth ; *Quantitative Trait, Heritable ; Scotland ; *Selection, Genetic ; *Sheep/anatomy & histology/genetics/growth & development ; Weather
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2006-11-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2006 Nov 17;314(5802):1068-71.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17110549" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Bone and Bones ; Cell Nucleus ; DNA/genetics/history/*isolation & purification ; DNA, Mitochondrial ; Equipment Contamination ; *Fossils ; Genome, Human ; Genomics/methods ; History, Ancient ; Hominidae/*genetics ; Humans ; Polymerase Chain Reaction ; Sequence Analysis, DNA
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2006-10-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2006 Oct 13;314(5797):244-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17038601" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Brain/physiology ; Brain Chemistry ; Cognition ; Evolution, Molecular ; Gene Expression Profiling ; Humans ; Invertebrates/anatomy & histology/physiology ; Membrane Proteins/*analysis/genetics/metabolism ; Multiprotein Complexes/*analysis/genetics/metabolism ; Nerve Tissue Proteins/*analysis/genetics/metabolism ; Organ Size ; Receptors, Neurotransmitter/analysis/genetics/metabolism ; Signal Transduction ; Synaptic Membranes/*chemistry/physiology ; Synaptic Transmission ; Vertebrates/anatomy & histology/physiology
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  • 38
    Publication Date: 2007-12-22
    Description: Beetles represent almost one-fourth of all described species, and knowledge about their relationships and evolution adds to our understanding of biodiversity. We performed a comprehensive phylogenetic analysis of Coleoptera inferred from three genes and nearly 1900 species, representing more than 80% of the world's recognized beetle families. We defined basal relationships in the Polyphaga supergroup, which contains over 300,000 species, and established five families as the earliest branching lineages. By dating the phylogeny, we found that the success of beetles is explained neither by exceptional net diversification rates nor by a predominant role of herbivory and the Cretaceous rise of angiosperms. Instead, the pre-Cretaceous origin of more than 100 present-day lineages suggests that beetle species richness is due to high survival of lineages and sustained diversification in a variety of niches.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hunt, Toby -- Bergsten, Johannes -- Levkanicova, Zuzana -- Papadopoulou, Anna -- John, Oliver St -- Wild, Ruth -- Hammond, Peter M -- Ahrens, Dirk -- Balke, Michael -- Caterino, Michael S -- Gomez-Zurita, Jesus -- Ribera, Ignacio -- Barraclough, Timothy G -- Bocakova, Milada -- Bocak, Ladislav -- Vogler, Alfried P -- New York, N.Y. -- Science. 2007 Dec 21;318(5858):1913-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Entomology, Natural History Museum, Cromwell Road, London SW7 5BD, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18096805" target="_blank"〉PubMed〈/a〉
    Keywords: Angiosperms ; Animals ; Beetles/anatomy & histology/*classification/*genetics/physiology ; Biodiversity ; *Biological Evolution ; Feeding Behavior ; Fossils ; Genes, Insect ; Gymnosperms ; *Phylogeny
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  • 39
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2006-09-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2006 Sep 29;313(5795):1908-11.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17008520" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Brain/anatomy & histology/embryology/physiology ; Cerebral Cortex/embryology/metabolism ; Evolution, Molecular ; Gene Dosage ; Gene Expression Profiling ; Gene Expression Regulation ; Genome ; *Genome, Human ; Genomics ; Humans ; Microcephaly/genetics ; Oligonucleotide Array Sequence Analysis ; Pan troglodytes/genetics ; Primates/*genetics ; Proteins/genetics/physiology ; RNA/genetics/physiology ; Selection, Genetic
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  • 40
    Publication Date: 2006-02-18
    Description: In the mammalian nervous system, neuronal activity regulates the strength and number of synapses formed. The genetic program that coordinates this process is poorly understood. We show that myocyte enhancer factor 2 (MEF2) transcription factors suppressed excitatory synapse number in a neuronal activity- and calcineurin-dependent manner as hippocampal neurons formed synapses. In response to increased neuronal activity, calcium influx into neurons induced the activation of the calcium/calmodulin-regulated phosphatase calcineurin, which dephosphorylated and activated MEF2. When activated, MEF2 promoted the transcription of a set of genes, including arc and synGAP, that restrict synapse number. These findings define an activity-dependent transcriptional program that may control synapse number during development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Flavell, Steven W -- Cowan, Christopher W -- Kim, Tae-Kyung -- Greer, Paul L -- Lin, Yingxi -- Paradis, Suzanne -- Griffith, Eric C -- Hu, Linda S -- Chen, Chinfei -- Greenberg, Michael E -- AG05870/AG/NIA NIH HHS/ -- HD18655/HD/NICHD NIH HHS/ -- NS28829/NS/NINDS NIH HHS/ -- R01 EY013613/EY/NEI NIH HHS/ -- New York, N.Y. -- Science. 2006 Feb 17;311(5763):1008-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Neurobiology Program, Children's Hospital, and Departments of Neurology and Neurobiology, Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16484497" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Calcineurin/metabolism ; Calcium/metabolism ; Cells, Cultured ; Cytoskeletal Proteins/genetics ; Dendrites/physiology/ultrastructure ; Excitatory Postsynaptic Potentials ; GTPase-Activating Proteins/genetics ; Gene Expression Regulation ; Glutamic Acid/metabolism ; Hippocampus/cytology/*physiology ; MEF2 Transcription Factors ; Mutation ; Myogenic Regulatory Factors/genetics/*physiology ; Nerve Tissue Proteins/genetics ; Neurons/*physiology ; Oligonucleotide Array Sequence Analysis ; Phosphorylation ; RNA Interference ; Rats ; Rats, Long-Evans ; Recombinant Fusion Proteins/metabolism ; Synapses/*physiology ; Synaptic Transmission ; Transcription, Genetic ; Transfection
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  • 41
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2006-09-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2006 Sep 8;313(5792):1381.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16959986" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Crustacea/physiology ; Female ; Fundulidae/*genetics/*physiology ; *Genetic Variation ; Hermaphroditic Organisms ; Male ; Microsatellite Repeats ; *Reproduction ; Sex Determination Processes ; Sexual Behavior, Animal
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  • 42
    Publication Date: 2007-09-08
    Description: We demonstrate the assembly of biohybrid materials from engineered tissues and synthetic polymer thin films. The constructs were built by culturing neonatal rat ventricular cardiomyocytes on polydimethylsiloxane thin films micropatterned with extracellular matrix proteins to promote spatially ordered, two-dimensional myogenesis. The constructs, termed muscular thin films, adopted functional, three-dimensional conformations when released from a thermally sensitive polymer substrate and were designed to perform biomimetic tasks by varying tissue architecture, thin-film shape, and electrical-pacing protocol. These centimeter-scale constructs perform functions as diverse as gripping, pumping, walking, and swimming with fine spatial and temporal control and generating specific forces as high as 4 millinewtons per square millimeter.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Feinberg, Adam W -- Feigel, Alex -- Shevkoplyas, Sergey S -- Sheehy, Sean -- Whitesides, George M -- Parker, Kevin Kit -- New York, N.Y. -- Science. 2007 Sep 7;317(5843):1366-70.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Disease Biophysics Group, School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17823347" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anisotropy ; Cell Culture Techniques ; Cells, Cultured ; Dimethylpolysiloxanes ; Microscopy, Fluorescence ; Motion ; Muscle Contraction ; *Myocardium ; Myocytes, Cardiac ; Rats ; Rats, Sprague-Dawley ; Robotics ; Silicones ; *Tissue Engineering
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2007-07-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2007 Jul 6;317(5834):27.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17615309" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Genes ; *Genome ; Genome, Human ; Genomics ; Humans ; Introns ; Sea Anemones/*genetics ; Sequence Analysis, DNA
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  • 44
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2007-08-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barash, David P -- New York, N.Y. -- Science. 2007 Aug 3;317(5838):596-7; author reply 596-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17673639" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; Group Processes ; Humans ; *Morals ; *Psychology, Social
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  • 45
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2006-07-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2006 Jul 14;313(5784):156.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16840668" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Beak/*anatomy & histology ; *Biological Evolution ; Competitive Behavior ; Diet ; Disasters ; Ecosystem ; Ecuador ; Feeding Behavior ; *Finches/anatomy & histology/physiology ; *Food ; Population Dynamics ; *Seeds ; *Selection, Genetic
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  • 46
    Publication Date: 2006-06-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2006 Jun 23;312(5781):1737.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16794056" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Cognition ; Comprehension ; Cooperative Behavior ; Cues ; Dogs/*psychology ; *Intelligence ; *Social Behavior
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  • 47
    Publication Date: 2006-05-06
    Description: Ediacaran assemblages immediately predate the Cambrian explosion of metazoans and should have played a crucial role in this radiation. Their wider relationships, however, have remained refractory and difficult to integrate with early metazoan phylogeny. Here, we describe a frondlike fossil, Stromatoveris (S. psygmoglena sp. nov.), from the Lower Cambrian Chengjiang Lagerstatte (Yunnan, China) that is strikingly similar to Ediacaran vendobionts. The exquisite preservation reveals closely spaced branches, probably ciliated, that appear to represent precursors of the diagnostic comb rows of ctenophores. Therefore, this finding has important implications for the early evolution of this phylum and related diploblasts, some of which independently evolved a frondose habit.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shu, D-G -- Morris, S Conway -- Han, J -- Li, Y -- Zhang, X-L -- Hua, H -- Zhang, Z-F -- Liu, J-N -- Guo, J-F -- Yao, Y -- Yasui, K -- New York, N.Y. -- Science. 2006 May 5;312(5774):731-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Early Life Institute and Key Laboratory of Continental Dynamics, Northwest University, Xi'an 710069, China. elidgshu@nwu.edu.cn〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16675697" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; China ; *Fossils ; Geologic Sediments ; Invertebrates/*anatomy & histology/*classification ; Phylogeny
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  • 48
    Publication Date: 2006-06-24
    Description: Organisms ranging from bacteria to humans synchronize their internal clocks to daily cycles of light and dark. Photic entrainment of the Drosophila clock is mediated by proteasomal degradation of the clock protein TIMELESS (TIM). We have identified mutations in jetlag-a gene coding for an F-box protein with leucine-rich repeats-that result in reduced light sensitivity of the circadian clock. Mutant flies show rhythmic behavior in constant light, reduced phase shifts in response to light pulses, and reduced light-dependent degradation of TIM. Expression of JET along with the circadian photoreceptor cryptochrome (CRY) in cultured S2R cells confers light-dependent degradation onto TIM, thereby reconstituting the acute response + of the circadian clock to light in a cell culture system. Our results suggest that JET is essential for resetting the clock by transmitting light signals from CRY to TIM.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2767177/" 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/PMC2767177/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koh, Kyunghee -- Zheng, Xiangzhong -- Sehgal, Amita -- NS048471/NS/NINDS NIH HHS/ -- R01 NS048471/NS/NINDS NIH HHS/ -- R01 NS048471-02/NS/NINDS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2006 Jun 23;312(5781):1809-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Neuroscience, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16794082" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amino Acid Substitution ; Animals ; Cells, Cultured ; *Circadian Rhythm ; Cryptochromes ; Drosophila/chemistry/genetics/physiology ; Drosophila Proteins/chemistry/*genetics/*metabolism/*physiology ; Drosophila melanogaster/chemistry/*genetics/*physiology ; Eye Proteins/metabolism ; F-Box Proteins/chemistry/*genetics/*physiology ; Female ; *Light ; Male ; Models, Biological ; Molecular Sequence Data ; Mutation ; Protein Structure, Tertiary ; Receptors, G-Protein-Coupled/metabolism ; Transgenes ; Ubiquitin/metabolism
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  • 49
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2007-05-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2007 May 4;316(5825):686-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17478697" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Biological ; Animals ; Biodiversity ; *Biological Evolution ; *Ecosystem ; Gene Flow ; Geography ; Plants
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  • 50
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2007-10-27
    Description: Altruism-benefiting fellow group members at a cost to oneself-and parochialism-hostility toward individuals not of one's own ethnic, racial, or other group-are common human behaviors. The intersection of the two-which we term "parochial altruism"-is puzzling from an evolutionary perspective because altruistic or parochial behavior reduces one's payoffs by comparison to what one would gain by eschewing these behaviors. But parochial altruism could have evolved if parochialism promoted intergroup hostilities and the combination of altruism and parochialism contributed to success in these conflicts. Our game-theoretic analysis and agent-based simulations show that under conditions likely to have been experienced by late Pleistocene and early Holocene humans, neither parochialism nor altruism would have been viable singly, but by promoting group conflict, they could have evolved jointly.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Choi, Jung-Kyoo -- Bowles, Samuel -- New York, N.Y. -- Science. 2007 Oct 26;318(5850):636-40.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Economics and Trade, Kyungpook National University, 1370 Sankyuk-dong, Buk-gu, Daegu 702-701, Korea.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17962562" target="_blank"〉PubMed〈/a〉
    Keywords: Algorithms ; *Altruism ; *Biological Evolution ; Computer Simulation ; Cooperative Behavior ; Female ; Game Theory ; *Hostility ; Humans ; Male ; Models, Psychological ; Reproduction ; *Social Behavior ; *Warfare
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  • 51
    Publication Date: 2007-03-31
    Description: Differentiation of hepatic stellate cells (HSCs) to extracellular matrix- and growth factor-producing cells supports liver regeneration through promotion of hepatocyte proliferation. We show that the neurotrophin receptor p75NTR, a tumor necrosis factor receptor superfamily member expressed in HSCs after fibrotic and cirrhotic liver injury in humans, is a regulator of liver repair. In mice, depletion of p75NTR exacerbated liver pathology and inhibited hepatocyte proliferation in vivo. p75NTR-/- HSCs failed to differentiate to myofibroblasts and did not support hepatocyte proliferation. Moreover, inhibition of p75NTR signaling to the small guanosine triphosphatase Rho resulted in impaired HSC differentiation. Our results identify signaling from p75NTR to Rho as a mechanism for the regulation of HSC differentiation to regeneration-promoting cells that support hepatocyte proliferation in the diseased liver.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Passino, Melissa A -- Adams, Ryan A -- Sikorski, Shoana L -- Akassoglou, Katerina -- 5T32-GM07752/GM/NIGMS NIH HHS/ -- NS051470/NS/NINDS NIH HHS/ -- P30-NS047101/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2007 Mar 30;315(5820):1853-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, University of California, San Diego (UCSD), La Jolla, CA 92093-0636, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17395831" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cell Differentiation ; Cell Proliferation ; Cells, Cultured ; Disease Progression ; Extracellular Matrix/metabolism ; Fibroblasts/*cytology ; Hepatocyte Growth Factor/metabolism ; Hepatocytes/*cytology ; Liver/*cytology/metabolism/pathology/physiology ; Liver Diseases/metabolism/*pathology ; *Liver Regeneration ; Mice ; Nerve Growth Factor/pharmacology ; Receptors, Nerve Growth Factor/genetics/*metabolism ; Signal Transduction ; rho GTP-Binding Proteins/metabolism
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2007-03-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2007 Mar 9;315(5817):1352-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17347420" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Biomechanical Phenomena ; Extremities/innervation/physiology ; Mesencephalon/physiology ; Models, Biological ; Models, Neurological ; Muscle Contraction ; Nerve Net/*physiology ; *Robotics ; Salamandra/anatomy & histology/*physiology ; Spinal Cord/*physiology ; Swimming ; *Walking
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2007-07-28
    Description: Morphological variation within species is a raw material subject to natural selection. However, temporal change in morphological diversity has usually been studied in terms of variation among rather than within species. The distribution of polymorphic traits in cladistic character-taxon matrices reveals that the frequency and extent of morphological variation in 982 trilobite species are greatest early in the evolution of the group: Stratigraphically old and/or phylogenetically basal taxa are significantly more variable than younger and/or more derived taxa. Through its influence on evolutionary tempo, high intraspecific variation may have played a major role in the pronounced Cambrian diversification of trilobites.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Webster, Mark -- New York, N.Y. -- Science. 2007 Jul 27;317(5837):499-502.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of the Geophysical Sciences, University of Chicago, 5734 South Ellis Avenue, Chicago, IL 60637, USA. mwebster@geosci.uchicago.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17656721" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arthropods/*anatomy & histology/classification/genetics ; *Biological Evolution ; *Fossils ; Genetic Speciation ; Genetic Variation ; Paleontology ; Phylogeny ; Species Specificity ; Time
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2007-10-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Behe, Michael J -- New York, N.Y. -- Science. 2007 Oct 12;318(5848):196; author reply 196.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17932270" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antimalarials/pharmacology ; *Biological Evolution ; Drug Resistance/*genetics ; *Mutation ; Plasmodium/drug effects/genetics ; Pyrimethamine/pharmacology ; *Selection, Genetic ; Tetrahydrofolate Dehydrogenase/genetics/metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 55
    Publication Date: 2007-11-17
    Description: In the time between speciation and extinction, a species' ecological and biogeographic footprint-its occupancy-will vary in response to macroecological drivers and historical contingencies. Despite their importance for understanding macroecological processes, general patterns of long-term species occupancy remain largely unknown. We documented the occupancy histories of Cenozoic marine mollusks from New Zealand. For both genera and species, these show a distinct pattern of increase to relatively short-lived peak occupancy at mid-duration, followed by a decline toward extinction. Thus, species at greatest risk for extinction are those that have already been in decline for a substantial period of time. This pattern of protracted rise and fall stands in contrast to that of incumbency, insofar as species show no general tendency to stay near maximal occupancy once established.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Foote, Michael -- Crampton, James S -- Beu, Alan G -- Marshall, Bruce A -- Cooper, Roger A -- Maxwell, Phillip A -- Matcham, Iain -- New York, N.Y. -- Science. 2007 Nov 16;318(5853):1131-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of the Geophysical Sciences, University of Chicago, 5734 South Ellis Avenue, Chicago, IL 60637 USA. mfoote@uchicago.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18006744" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biodiversity ; *Biological Evolution ; *Extinction, Biological ; *Fossils ; *Mollusca ; Population Dynamics ; Seawater ; Time
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  • 56
    Publication Date: 2007-03-24
    Description: Changes in the genes encoding sensory receptor proteins are an essential step in the evolution of new sensory capacities. In primates, trichromatic color vision evolved after changes in X chromosome-linked photopigment genes. To model this process, we studied knock-in mice that expressed a human long-wavelength-sensitive (L) cone photopigment in the form of an X-linked polymorphism. Behavioral tests demonstrated that heterozygous females, whose retinas contained both native mouse pigments and human L pigment, showed enhanced long-wavelength sensitivity and acquired a new capacity for chromatic discrimination. An inherent plasticity in the mammalian visual system thus permits the emergence of a new dimension of sensory experience based solely on gene-driven changes in receptor organization.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jacobs, Gerald H -- Williams, Gary A -- Cahill, Hugh -- Nathans, Jeremy -- EY002052/EY/NEI NIH HHS/ -- New York, N.Y. -- Science. 2007 Mar 23;315(5819):1723-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Neuroscience Research Institute and Department of Psychology, University of California, Santa Barbara, CA 93106, USA. jacobs@psych.ucsb.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17379811" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Color Perception/*genetics ; Discrimination (Psychology) ; Electroretinography ; Female ; Genetic Engineering ; Heterozygote ; Humans ; Light ; Male ; Mice ; Neuronal Plasticity ; Primates/genetics/physiology ; Retinal Cone Photoreceptor Cells/*physiology ; Retinal Pigments/*genetics/*physiology ; X Chromosome/genetics ; X Chromosome Inactivation
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  • 57
    Publication Date: 2007-10-13
    Description: Chlamydomonas reinhardtii is a unicellular green alga whose lineage diverged from land plants over 1 billion years ago. It is a model system for studying chloroplast-based photosynthesis, as well as the structure, assembly, and function of eukaryotic flagella (cilia), which were inherited from the common ancestor of plants and animals, but lost in land plants. We sequenced the approximately 120-megabase nuclear genome of Chlamydomonas and performed comparative phylogenomic analyses, identifying genes encoding uncharacterized proteins that are likely associated with the function and biogenesis of chloroplasts or eukaryotic flagella. Analyses of the Chlamydomonas genome advance our understanding of the ancestral eukaryotic cell, reveal previously unknown genes associated with photosynthetic and flagellar functions, and establish links between ciliopathy and the composition and function of flagella.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2875087/" 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/PMC2875087/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Merchant, Sabeeha S -- Prochnik, Simon E -- Vallon, Olivier -- Harris, Elizabeth H -- Karpowicz, Steven J -- Witman, George B -- Terry, Astrid -- Salamov, Asaf -- Fritz-Laylin, Lillian K -- Marechal-Drouard, Laurence -- Marshall, Wallace F -- Qu, Liang-Hu -- Nelson, David R -- Sanderfoot, Anton A -- Spalding, Martin H -- Kapitonov, Vladimir V -- Ren, Qinghu -- Ferris, Patrick -- Lindquist, Erika -- Shapiro, Harris -- Lucas, Susan M -- Grimwood, Jane -- Schmutz, Jeremy -- Cardol, Pierre -- Cerutti, Heriberto -- Chanfreau, Guillaume -- Chen, Chun-Long -- Cognat, Valerie -- Croft, Martin T -- Dent, Rachel -- Dutcher, Susan -- Fernandez, Emilio -- Fukuzawa, Hideya -- Gonzalez-Ballester, David -- Gonzalez-Halphen, Diego -- Hallmann, Armin -- Hanikenne, Marc -- Hippler, Michael -- Inwood, William -- Jabbari, Kamel -- Kalanon, Ming -- Kuras, Richard -- Lefebvre, Paul A -- Lemaire, Stephane D -- Lobanov, Alexey V -- Lohr, Martin -- Manuell, Andrea -- Meier, Iris -- Mets, Laurens -- Mittag, Maria -- Mittelmeier, Telsa -- Moroney, James V -- Moseley, Jeffrey -- Napoli, Carolyn -- Nedelcu, Aurora M -- Niyogi, Krishna -- Novoselov, Sergey V -- Paulsen, Ian T -- Pazour, Greg -- Purton, Saul -- Ral, Jean-Philippe -- Riano-Pachon, Diego Mauricio -- Riekhof, Wayne -- Rymarquis, Linda -- Schroda, Michael -- Stern, David -- Umen, James -- Willows, Robert -- Wilson, Nedra -- Zimmer, Sara Lana -- Allmer, Jens -- Balk, Janneke -- Bisova, Katerina -- Chen, Chong-Jian -- Elias, Marek -- Gendler, Karla -- Hauser, Charles -- Lamb, Mary Rose -- Ledford, Heidi -- Long, Joanne C -- Minagawa, Jun -- Page, M Dudley -- Pan, Junmin -- Pootakham, Wirulda -- Roje, Sanja -- Rose, Annkatrin -- Stahlberg, Eric -- Terauchi, Aimee M -- Yang, Pinfen -- Ball, Steven -- Bowler, Chris -- Dieckmann, Carol L -- Gladyshev, Vadim N -- Green, Pamela -- Jorgensen, Richard -- Mayfield, Stephen -- Mueller-Roeber, Bernd -- Rajamani, Sathish -- Sayre, Richard T -- Brokstein, Peter -- Dubchak, Inna -- Goodstein, David -- Hornick, Leila -- Huang, Y Wayne -- Jhaveri, Jinal -- Luo, Yigong -- Martinez, Diego -- Ngau, Wing Chi Abby -- Otillar, Bobby -- Poliakov, Alexander -- Porter, Aaron -- Szajkowski, Lukasz -- Werner, Gregory -- Zhou, Kemin -- Grigoriev, Igor V -- Rokhsar, Daniel S -- Grossman, Arthur R -- GM07185/GM/NIGMS NIH HHS/ -- GM42143/GM/NIGMS NIH HHS/ -- R01 GM032843/GM/NIGMS NIH HHS/ -- R01 GM042143/GM/NIGMS NIH HHS/ -- R01 GM042143-09/GM/NIGMS NIH HHS/ -- R01 GM060992/GM/NIGMS NIH HHS/ -- R01 GM062915-06/GM/NIGMS NIH HHS/ -- R37 GM030626/GM/NIGMS NIH HHS/ -- R37 GM042143/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2007 Oct 12;318(5848):245-50.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Biochemistry, University of California at Los Angeles, Los Angeles, CA 90095, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17932292" target="_blank"〉PubMed〈/a〉
    Keywords: Algal Proteins/*genetics/*physiology ; Animals ; *Biological Evolution ; Chlamydomonas reinhardtii/*genetics/physiology ; Chloroplasts/metabolism ; Computational Biology ; DNA, Algal/genetics ; Flagella/metabolism ; Genes ; *Genome ; Genomics ; Membrane Transport Proteins/genetics/physiology ; Molecular Sequence Data ; Multigene Family ; Photosynthesis/genetics ; Phylogeny ; Plants/genetics ; Proteome ; Sequence Analysis, DNA
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  • 58
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2007-09-08
    Description: There is much interest in the evolutionary forces that favored the evolution of large brains in the primate order. The social brain hypothesis posits that selection has favored larger brains and more complex cognitive capacities as a means to cope with the challenges of social life. The hypothesis is supported by evidence that shows that group size is linked to various measures of brain size. But it has not been clear how cognitive complexity confers fitness advantages on individuals. Research in the field and laboratory shows that sophisticated social cognition underlies social behavior in primate groups. Moreover, a growing body of evidence suggests that the quality of social relationships has measurable fitness consequences for individuals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Silk, Joan B -- New York, N.Y. -- Science. 2007 Sep 7;317(5843):1347-51.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anthropology, University of California, Los Angeles, CA 90095, USA. jsilk@anthro.ucla.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17823344" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Brain/*physiology ; Cognition/physiology ; Humans ; Primates/*physiology ; Reproduction ; Selection, Genetic ; *Social Behavior
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  • 59
    Publication Date: 2007-07-07
    Description: The in vivo potential of neural stem cells in the postnatal mouse brain is not known, but because they produce many different types of neurons, they must be either very versatile or very diverse. By specifically targeting stem cells and following their progeny in vivo, we showed that postnatal stem cells in different regions produce different types of neurons, even when heterotopically grafted or grown in culture. This suggests that rather than being plastic and homogeneous, neural stem cells are a restricted and diverse population of progenitors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Merkle, Florian T -- Mirzadeh, Zaman -- Alvarez-Buylla, Arturo -- New York, N.Y. -- Science. 2007 Jul 20;317(5836):381-4. Epub 2007 Jul 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurosurgery and Developmental and Stem Cell Biology Program, University of California, San Francisco, San Francisco, CA 94143-0525, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17615304" target="_blank"〉PubMed〈/a〉
    Keywords: Adult Stem Cells/*cytology ; Animals ; Animals, Newborn ; Astrocytes/cytology ; Brain/*cytology ; Cell Differentiation ; Cells, Cultured ; Interneurons/cytology ; Lateral Ventricles/cytology ; Mice ; Neuroglia/cytology ; Neurons/*cytology ; Olfactory Bulb/cytology ; Stem Cell Transplantation ; Transplantation, Heterotopic
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  • 60
    Publication Date: 2007-11-03
    Description: The limb blastemal cells of an adult salamander regenerate the structures distal to the level of amputation, and the surface protein Prod 1 is a critical determinant of their proximodistal identity. The anterior gradient protein family member nAG is a secreted ligand for Prod 1 and a growth factor for cultured newt blastemal cells. nAG is sequentially expressed after amputation in the regenerating nerve and the wound epidermis-the key tissues of the stem cell niche-and its expression in both locations is abrogated by denervation. The local expression of nAG after electroporation is sufficient to rescue a denervated blastema and regenerate the distal structures. Our analysis brings together the positional identity of the blastema and the classical nerve dependence of limb regeneration.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2696928/" 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/PMC2696928/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kumar, Anoop -- Godwin, James W -- Gates, Phillip B -- Garza-Garcia, A Acely -- Brockes, Jeremy P -- G0600229/Medical Research Council/United Kingdom -- G0600229(77696)/Medical Research Council/United Kingdom -- G9537983/Medical Research Council/United Kingdom -- G9537983(56733)/Medical Research Council/United Kingdom -- MC_U117574559/Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2007 Nov 2;318(5851):772-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biology, University College London, Gower Street, London WC1E 6BT, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17975060" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD59/*physiology ; COS Cells ; Cells, Cultured ; Cercopithecus aethiops ; Denervation ; Extremities/innervation ; Glycosylphosphatidylinositols/physiology ; Growth Substances ; Intercellular Signaling Peptides and Proteins/isolation & ; purification/*physiology/secretion ; Ligands ; Mice ; Notophthalmus viridescens ; Peripheral Nerves/*physiology ; Regeneration/*physiology ; Stem Cells/*cytology ; Two-Hybrid System Techniques
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  • 61
    Publication Date: 2007-02-03
    Description: The 66-kilodalton isoform of the growth factor adapter Shc (p66Shc) translates oxidative damage into cell death by acting as reactive oxygen species (ROS) producer within mitochondria. However, the signaling link between cellular stress and mitochondrial proapoptotic activity of p66Shc was not known. We demonstrate that protein kinase C beta, activated by oxidative conditions in the cell, induces phosphorylation of p66Shc and triggers mitochondrial accumulation of the protein after it is recognized by the prolyl isomerase Pin1. Once imported, p66Shc causes alterations of mitochondrial Ca2+ responses and three-dimensional structure, thus inducing apoptosis. These data identify a signaling route that activates an apoptotic inducer shortening the life span and could be a potential target of pharmacological approaches to inhibit aging.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pinton, Paolo -- Rimessi, Alessandro -- Marchi, Saverio -- Orsini, Francesca -- Migliaccio, Enrica -- Giorgio, Marco -- Contursi, Cristina -- Minucci, Saverio -- Mantovani, Fiamma -- Wieckowski, Mariusz R -- Del Sal, Giannino -- Pelicci, Pier Giuseppe -- Rizzuto, Rosario -- GGP05284/Telethon/Italy -- New York, N.Y. -- Science. 2007 Feb 2;315(5812):659-63.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Experimental and Diagnostic Medicine, Section of General Pathology and Interdisciplinary Center for the Study of Inflammation (ICSI), University of Ferrara, Ferrera, Italy.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17272725" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing/genetics/*metabolism ; Adenosine Triphosphate/metabolism/pharmacology ; Animals ; *Apoptosis ; Calcium/metabolism ; Calcium Signaling ; *Cell Aging ; Cell Survival ; Cells, Cultured ; Cyclosporine/pharmacology ; Hydrogen Peroxide/metabolism/pharmacology ; Mice ; Mitochondria/*metabolism/ultrastructure ; Mutation ; Oxidative Stress ; Peptidylprolyl Isomerase/*metabolism ; Permeability ; Phosphorylation ; Protein Kinase C/antagonists & inhibitors/genetics/*metabolism ; Protein Kinase C beta ; Reactive Oxygen Species/metabolism ; Recombinant Fusion Proteins/metabolism ; Shc Signaling Adaptor Proteins ; *Signal Transduction
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  • 62
    Publication Date: 2007-02-10
    Description: A central issue in the regulation of apoptosis by the Bcl-2 family is whether its BH3-only members initiate apoptosis by directly binding to the essential cell-death mediators Bax and Bak, or whether they can act indirectly, by engaging their pro-survival Bcl-2-like relatives. Contrary to the direct-activation model, we show that Bax and Bak can mediate apoptosis without discernable association with the putative BH3-only activators (Bim, Bid, and Puma), even in cells with no Bim or Bid and reduced Puma. Our results indicate that BH3-only proteins induce apoptosis at least primarily by engaging the multiple pro-survival relatives guarding Bax and Bak.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Willis, Simon N -- Fletcher, Jamie I -- Kaufmann, Thomas -- van Delft, Mark F -- Chen, Lin -- Czabotar, Peter E -- Ierino, Helen -- Lee, Erinna F -- Fairlie, W Douglas -- Bouillet, Philippe -- Strasser, Andreas -- Kluck, Ruth M -- Adams, Jerry M -- Huang, David C S -- CA43540/CA/NCI NIH HHS/ -- CA80188/CA/NCI NIH HHS/ -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2007 Feb 9;315(5813):856-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, Victoria 3050, Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17289999" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Apoptosis ; Apoptosis Regulatory Proteins/chemistry/genetics/*metabolism ; BH3 Interacting Domain Death Agonist Protein/chemistry/genetics/*metabolism ; Cell Line ; Cells, Cultured ; Humans ; Ligands ; Membrane Proteins/chemistry/genetics/*metabolism ; Mice ; Mice, Knockout ; Models, Biological ; Mutation ; Myeloid Cell Leukemia Sequence 1 Protein ; Neoplasm Proteins/metabolism ; Protein Structure, Tertiary ; Proteins/metabolism ; Proto-Oncogene Proteins/chemistry/genetics/*metabolism ; Proto-Oncogene Proteins c-bcl-2/*metabolism ; Tumor Suppressor Proteins/genetics/metabolism ; bcl-2 Homologous Antagonist-Killer Protein/metabolism ; bcl-2-Associated X Protein/chemistry/*metabolism ; bcl-Associated Death Protein/metabolism ; bcl-X Protein/metabolism
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  • 63
    Publication Date: 2007-05-26
    Description: The roles of endocannabinoid signaling during central nervous system development are unknown. We report that CB(1) cannabinoid receptors (CB(1)Rs) are enriched in the axonal growth cones of gamma-aminobutyric acid-containing (GABAergic) interneurons in the rodent cortex during late gestation. Endocannabinoids trigger CB(1)R internalization and elimination from filopodia and induce chemorepulsion and collapse of axonal growth cones of these GABAergic interneurons by activating RhoA. Similarly, endocannabinoids diminish the galvanotropism of Xenopus laevis spinal neurons. These findings, together with the impaired target selection of cortical GABAergic interneurons lacking CB(1)Rs, identify endocannabinoids as axon guidance cues and demonstrate that endocannabinoid signaling regulates synaptogenesis and target selection in vivo.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Berghuis, Paul -- Rajnicek, Ann M -- Morozov, Yury M -- Ross, Ruth A -- Mulder, Jan -- Urban, Gabriella M -- Monory, Krisztina -- Marsicano, Giovanni -- Matteoli, Michela -- Canty, Alison -- Irving, Andrew J -- Katona, Istvan -- Yanagawa, Yuchio -- Rakic, Pasko -- Lutz, Beat -- Mackie, Ken -- Harkany, Tibor -- DA00286/DA/NIDA NIH HHS/ -- DA015916/DA/NIDA NIH HHS/ -- DA11322/DA/NIDA NIH HHS/ -- New York, N.Y. -- Science. 2007 May 25;316(5828):1212-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Molecular Neurobiology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, S-17177 Stockholm, Sweden.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17525344" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/physiology ; Cannabinoid Receptor Modulators/metabolism/*physiology ; Cell Movement ; Cells, Cultured ; Cerebral Cortex/cytology/embryology/ultrastructure ; *Endocannabinoids ; Growth Cones/physiology/ultrasonography ; In Situ Hybridization ; Interneurons/metabolism/*physiology/ultrasonography ; Mice ; Mice, Inbred C57BL ; Microscopy, Confocal ; Rats ; Rats, Sprague-Dawley ; Receptor, Cannabinoid, CB1/agonists/*physiology ; Signal Transduction ; Stem Cells/metabolism ; Synapses/physiology/ultrasonography ; Xenopus Proteins/physiology ; Xenopus laevis ; gamma-Aminobutyric Acid/metabolism
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  • 64
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2007-04-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Berner, Robert A -- Vandenbrooks, John M -- Ward, Peter D -- New York, N.Y. -- Science. 2007 Apr 27;316(5824):557-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Geology and Geophysics, Yale University, New Haven, CT 06520, USA. robert.berner@yale.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17463279" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; Alligators and Crocodiles/embryology ; Animals ; *Atmosphere ; *Biological Evolution ; Body Size ; Drosophila melanogaster/anatomy & histology/physiology ; Embryonic Development ; Extinction, Biological ; Fishes/anatomy & histology/physiology ; Locomotion ; Mollusca/anatomy & histology/physiology ; *Oxygen ; Oxygen Consumption ; Plants/metabolism ; Swimming ; Time ; Vertebrates/anatomy & histology/physiology
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  • 65
    Publication Date: 2007-11-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jorgensen, Christian -- Enberg, Katja -- Dunlop, Erin S -- Arlinghaus, Robert -- Boukal, David S -- Brander, Keith -- Ernande, Bruno -- Gardmark, Anna -- Johnston, Fiona -- Matsumura, Shuichi -- Pardoe, Heidi -- Raab, Kristina -- Silva, Alexandra -- Vainikka, Anssi -- Dieckmann, Ulf -- Heino, Mikko -- Rijnsdorp, Adriaan D -- New York, N.Y. -- Science. 2007 Nov 23;318(5854):1247-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of Bergen, N-5020 Bergen. christian.jorgensen@bio.uib.no〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18033868" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Ecosystem ; *Fisheries/methods ; *Fishes/physiology ; Population Dynamics
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  • 66
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2007-06-02
    Description: The first appearances of aragonite and calcite skeletons in 18 animal clades that independently evolved mineralization during the late Ediacaran through the Ordovician (approximately 550 to 444 million years ago) correspond to intervals when seawater chemistry favored aragonite and calcite precipitation, respectively. Skeletal mineralogies rarely changed once skeletons evolved, despite subsequent changes in seawater chemistry. Thus, the selection of carbonate skeletal minerals appears to have been dictated by seawater chemistry at the time a clade first acquired its mineralized skeleton.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Porter, Susannah M -- New York, N.Y. -- Science. 2007 Jun 1;316(5829):1302.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Earth Science, University of California at Santa Barbara, Santa Barbara, CA 93106, USA. porter@geol.ucsb.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17540895" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Calcification, Physiologic ; Calcium/analysis ; Calcium Carbonate/*analysis ; Chemical Precipitation ; Crystallization ; *Fossils ; Invertebrates/*chemistry ; Magnesium/analysis ; Seawater/*chemistry
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  • 67
    Publication Date: 2007-09-22
    Description: Platelets are generated from megakaryocytes (MKs) in mammalian bone marrow (BM) by mechanisms that remain poorly understood. Here we describe the use of multiphoton intravital microscopy in intact BM to visualize platelet generation in mice. MKs were observed as sessile cells that extended dynamic proplatelet-like protrusions into microvessels. These intravascular extensions appeared to be sheared from their transendothelial stems by flowing blood, resulting in the appearance of proplatelets in peripheral blood. In vitro, proplatelet production from differentiating MKs was enhanced by fluid shear. These results confirm the concept of proplatelet formation in vivo and are consistent with the possibility that blood flow-induced hydrodynamic shear stress is a biophysical determinant of thrombopoiesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Junt, Tobias -- Schulze, Harald -- Chen, Zhao -- Massberg, Steffen -- Goerge, Tobias -- Krueger, Andreas -- Wagner, Denisa D -- Graf, Thomas -- Italiano, Joseph E Jr -- Shivdasani, Ramesh A -- von Andrian, Ulrich H -- HL068130/HL/NHLBI NIH HHS/ -- HL56949/HL/NHLBI NIH HHS/ -- HL63143/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2007 Sep 21;317(5845):1767-70.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Immune Disease Institute and Department of Pathology, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17885137" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacterial Proteins ; Blood Platelets/*cytology ; Bone Marrow/*physiology ; Cells, Cultured ; Luminescent Proteins ; Megakaryocytes/*cytology ; Mice ; Microscopy, Fluorescence, Multiphoton ; Platelet Membrane Glycoprotein IIb ; Shear Strength ; Thrombopoiesis/*physiology
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  • 68
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2007-11-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Proud, Christopher G -- New York, N.Y. -- Science. 2007 Nov 9;318(5852):926-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biology, University of British Columbia, 2350 Health Sciences Mall, Vancouver, British Columbia V6T 1Z3, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17991850" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acids/metabolism ; Cells, Cultured ; Guanosine Triphosphate/metabolism ; Humans ; Insulin/metabolism ; Models, Biological ; Monomeric GTP-Binding Proteins/*metabolism ; Multiprotein Complexes ; Neuropeptides/*metabolism ; Protein Binding ; Protein Kinases/*metabolism ; Proteins ; *Signal Transduction ; Sirolimus/metabolism/pharmacology ; TOR Serine-Threonine Kinases ; Tacrolimus Binding Protein 1A/metabolism ; Tacrolimus Binding Proteins/antagonists & inhibitors/*metabolism ; Transcription Factors/*metabolism
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  • 69
    Publication Date: 2007-05-26
    Description: To understand the constraints on biological diversity, we analyzed how selection and development interact to control the evolution of inflorescences, the branching structures that bear flowers. We show that a single developmental model accounts for the restricted range of inflorescence types observed in nature and that this model is supported by molecular genetic studies. The model predicts associations between inflorescence architecture, climate, and life history, which we validated empirically. Paths, or evolutionary wormholes, link different architectures in a multidimensional fitness space, but the rate of evolution along these paths is constrained by genetic and environmental factors, which explains why some evolutionary transitions are rare between closely related plant taxa.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Prusinkiewicz, Przemyslaw -- Erasmus, Yvette -- Lane, Brendan -- Harder, Lawrence D -- Coen, Enrico -- New York, N.Y. -- Science. 2007 Jun 8;316(5830):1452-6. Epub 2007 May 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Computer Science, University of Calgary, 2500 University Drive N.W. Calgary, Alberta T2N 1N4, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17525303" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis/*anatomy & histology/genetics/*growth & development ; Arabidopsis Proteins/genetics/physiology ; *Biological Evolution ; Climate ; Computer Simulation ; Flowers/*anatomy & histology/genetics/*growth & development ; Gene Expression ; Genes, Plant ; Mathematics ; Meristem/growth & development ; *Models, Biological ; Selection, Genetic ; Transcription Factors/genetics/physiology
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  • 70
    Publication Date: 2007-09-29
    Description: The importance of trophic ecology in adaptation and evolution is well known, yet direct evidence that feeding controls microevolution over extended evolutionary time scales, available only from the fossil record, is conspicuously lacking. Through quantitative analysis of tooth microwear, we show that rapid evolutionary change in Miocene stickleback was associated with shifts in feeding, providing direct evidence from the fossil record for changes in trophic niche and resource exploitation driving directional, microevolutionary change over thousands of years. These results demonstrate the potential for tooth microwear analysis to provide powerful insights into trophic ecology during aquatic adaptive radiations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Purnell, Mark A -- Bell, Michael A -- Baines, David C -- Hart, Paul J B -- Travis, Matthew P -- New York, N.Y. -- Science. 2007 Sep 28;317(5846):1887.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Geology, University of Leicester, Leicester LE1 7RH, UK. mark.purnell@leicester.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17901325" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Biological ; Animals ; *Biological Evolution ; *Diet ; Ecosystem ; *Fossils ; Paleodontology ; Phenotype ; *Smegmamorpha/anatomy & histology ; Tooth/*ultrastructure ; Tooth Attrition
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  • 71
    Publication Date: 2007-07-07
    Description: Sea anemones are seemingly primitive animals that, along with corals, jellyfish, and hydras, constitute the oldest eumetazoan phylum, the Cnidaria. Here, we report a comparative analysis of the draft genome of an emerging cnidarian model, the starlet sea anemone Nematostella vectensis. The sea anemone genome is complex, with a gene repertoire, exon-intron structure, and large-scale gene linkage more similar to vertebrates than to flies or nematodes, implying that the genome of the eumetazoan ancestor was similarly complex. Nearly one-fifth of the inferred genes of the ancestor are eumetazoan novelties, which are enriched for animal functions like cell signaling, adhesion, and synaptic transmission. Analysis of diverse pathways suggests that these gene "inventions" along the lineage leading to animals were likely already well integrated with preexisting eukaryotic genes in the eumetazoan progenitor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Putnam, Nicholas H -- Srivastava, Mansi -- Hellsten, Uffe -- Dirks, Bill -- Chapman, Jarrod -- Salamov, Asaf -- Terry, Astrid -- Shapiro, Harris -- Lindquist, Erika -- Kapitonov, Vladimir V -- Jurka, Jerzy -- Genikhovich, Grigory -- Grigoriev, Igor V -- Lucas, Susan M -- Steele, Robert E -- Finnerty, John R -- Technau, Ulrich -- Martindale, Mark Q -- Rokhsar, Daniel S -- 5 P41 LM006252-09/LM/NLM NIH HHS/ -- THL007279F/PHS HHS/ -- New York, N.Y. -- Science. 2007 Jul 6;317(5834):86-94.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Energy Joint Genome Institute, Walnut Creek, CA 94598, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17615350" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Cell Adhesion ; Evolution, Molecular ; Genes ; Genetic Linkage ; *Genome ; Genome, Human ; Genomics ; Humans ; Introns ; Metabolic Networks and Pathways ; Multigene Family ; Muscles/physiology ; Nervous System Physiological Phenomena ; Phylogeny ; Sea Anemones/*genetics/metabolism ; Sequence Analysis, DNA ; Signal Transduction ; Synteny
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  • 72
    Publication Date: 2007-07-21
    Description: Virally encoded microRNAs (miRNAs) have recently been discovered in herpesviruses. However, their biological roles are mostly unknown. We developed an algorithm for the prediction of miRNA targets and applied it to human cytomegalovirus miRNAs, resulting in the identification of the major histocompatibility complex class I-related chain B (MICB) gene as a top candidate target of hcmv-miR-UL112. MICB is a stress-induced ligand of the natural killer (NK) cell activating receptor NKG2D and is critical for the NK cell killing of virus-infected cells and tumor cells. We show that hcmv-miR-UL112 specifically down-regulates MICB expression during viral infection, leading to decreased binding of NKG2D and reduced killing by NK cells. Our results reveal a miRNA-based immunoevasion mechanism that appears to be exploited by human cytomegalovirus.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4283197/" 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/PMC4283197/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stern-Ginossar, Noam -- Elefant, Naama -- Zimmermann, Albert -- Wolf, Dana G -- Saleh, Nivin -- Biton, Moshe -- Horwitz, Elad -- Prokocimer, Zafnat -- Prichard, Mark -- Hahn, Gabriele -- Goldman-Wohl, Debra -- Greenfield, Caryn -- Yagel, Simcha -- Hengel, Hartmut -- Altuvia, Yael -- Margalit, Hanah -- Mandelboim, Ofer -- N01 AI030049/AI/NIAID NIH HHS/ -- N01 AI30049/AI/NIAID NIH HHS/ -- N01-30049/PHS HHS/ -- New York, N.Y. -- Science. 2007 Jul 20;317(5836):376-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lautenberg Center for General and Tumor Immunology, Hebrew University Hadassah Medical School, Jerusalem, Israel.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17641203" target="_blank"〉PubMed〈/a〉
    Keywords: 3' Untranslated Regions/metabolism ; Algorithms ; Binding Sites ; Cell Line, Tumor ; Cells, Cultured ; Cytomegalovirus/genetics/*immunology/*pathogenicity ; Cytotoxicity, Immunologic ; Down-Regulation ; Histocompatibility Antigens Class I/*genetics/metabolism ; Humans ; Killer Cells, Natural/immunology ; Ligands ; MicroRNAs/genetics/*metabolism ; NK Cell Lectin-Like Receptor Subfamily K ; RNA, Viral/*metabolism ; Receptors, Immunologic/metabolism ; Receptors, Natural Killer Cell ; Transduction, Genetic
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  • 73
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2007-09-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gibbons, Ann -- New York, N.Y. -- Science. 2007 Sep 21;317(5845):1664.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17885102" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Animals ; *Biological Evolution ; Body Size ; Bone and Bones ; Female ; *Fossils ; Georgia (Republic) ; *Hominidae/classification ; Humans ; Male
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  • 74
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2007-03-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zimmer, Carl -- New York, N.Y. -- Science. 2007 Mar 9;315(5817):1358-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17347424" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Birds/*genetics/metabolism ; *Cell Size ; DNA, Intergenic ; Dinosaurs/*genetics/metabolism ; *Fossils ; *Genome ; Genome, Human ; Humans ; Interspersed Repetitive Sequences ; Osteocytes/cytology ; Selection, Genetic ; Species Specificity
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  • 75
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2007-06-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Taylor, Michael W -- Thacker, Robert W -- Hentschel, Ute -- New York, N.Y. -- Science. 2007 Jun 29;316(5833):1854-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17600204" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacterial Physiological Phenomena ; *Biological Evolution ; Calcification, Physiologic ; Carbonic Anhydrases/*genetics/metabolism ; Computational Biology ; Genome ; Porifera/enzymology/*genetics/*microbiology/physiology ; Silicates/metabolism ; *Symbiosis
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  • 76
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2007-03-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Buckling, Angus -- New York, N.Y. -- Science. 2007 Mar 2;315(5816):1227-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Zoology, University of Oxford, Oxford OX1 3PS, UK. angus.buckling@zoology.oxford.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17332398" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacteria/growth & development/*virology ; Bacterial Physiological Phenomena ; Bacteriophages/*pathogenicity/physiology ; *Biological Evolution ; Granulovirus/*pathogenicity/physiology ; Larva/physiology/virology ; Moths/*physiology/*virology ; Movement ; Selection, Genetic ; Virus Replication
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  • 77
    Publication Date: 2007-03-03
    Description: IKKepsilon is an IKK (inhibitor of nuclear factor kappaBkinase)-related kinase implicated in virus induction of interferon-beta (IFNbeta). We report that, although mice lacking IKKepsilon produce normal amounts of IFNbeta, they are hypersusceptible to viral infection because of a defect in the IFN signaling pathway. Specifically, a subset of type I IFN-stimulated genes are not activated in the absence of IKKepsilon because the interferon-stimulated gene factor 3 complex (ISGF3) does not bind to promoter elements of the affected genes. We demonstrate that IKKepsilon is activated by IFNbeta and that IKKepsilon directly phosphorylates signal transducer and activator of transcription 1 (STAT1), a component of ISGF3. We conclude that IKKepsilon plays a critical role in the IFN-inducible antiviral transcriptional response.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tenoever, Benjamin R -- Ng, Sze-Ling -- Chua, Mark A -- McWhirter, Sarah M -- Garcia-Sastre, Adolfo -- Maniatis, Tom -- F31 AI056678/AI/NIAID NIH HHS/ -- P01AI058113/AI/NIAID NIH HHS/ -- R01AI46954/AI/NIAID NIH HHS/ -- U19AI62623/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2007 Mar 2;315(5816):1274-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cellular Biology, Harvard University, 7 Divinity Avenue, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17332413" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Deaminase/genetics/metabolism ; Animals ; Cells, Cultured ; Dimerization ; *Gene Expression Regulation ; I-kappa B Kinase/genetics/*metabolism ; *Influenza A Virus, H1N1 Subtype/immunology/physiology ; Interferon-Stimulated Gene Factor 3/metabolism ; Interferon-beta/*immunology/metabolism ; Lung/pathology/virology ; Mice ; Mice, Knockout ; Orthomyxoviridae Infections/*immunology/metabolism/pathology/virology ; Phosphorylation ; Promoter Regions, Genetic ; RNA-Binding Proteins ; STAT1 Transcription Factor/metabolism ; STAT2 Transcription Factor/metabolism ; Signal Transduction ; Transcription, Genetic ; Viral Load ; Virus Replication
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  • 78
    Publication Date: 2007-12-08
    Description: It has recently been demonstrated that mouse and human fibroblasts can be reprogrammed into an embryonic stem cell-like state by introducing combinations of four transcription factors. However, the therapeutic potential of such induced pluripotent stem (iPS) cells remained undefined. By using a humanized sickle cell anemia mouse model, we show that mice can be rescued after transplantation with hematopoietic progenitors obtained in vitro from autologous iPS cells. This was achieved after correction of the human sickle hemoglobin allele by gene-specific targeting. Our results provide proof of principle for using transcription factor-induced reprogramming combined with gene and cell therapy for disease treatment in mice. The problems associated with using retroviruses and oncogenes for reprogramming need to be resolved before iPS cells can be considered for human therapy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hanna, Jacob -- Wernig, Marius -- Markoulaki, Styliani -- Sun, Chiao-Wang -- Meissner, Alexander -- Cassady, John P -- Beard, Caroline -- Brambrink, Tobias -- Wu, Li-Chen -- Townes, Tim M -- Jaenisch, Rudolf -- 2-R01-HL057619/HL/NHLBI NIH HHS/ -- 5-R37-CA084198/CA/NCI NIH HHS/ -- 5-RO1-CA087869/CA/NCI NIH HHS/ -- 5-RO1-HDO45022/PHS HHS/ -- New York, N.Y. -- Science. 2007 Dec 21;318(5858):1920-3. Epub 2007 Dec 6.〈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/18063756" target="_blank"〉PubMed〈/a〉
    Keywords: Anemia, Sickle Cell/blood/physiopathology/*therapy ; Animals ; Cell Differentiation ; Cells, Cultured ; *Cellular Reprogramming ; DNA-Binding Proteins/genetics ; Disease Models, Animal ; Embryonic Stem Cells/cytology ; Erythrocyte Count ; Fibroblasts/*cytology ; Genes, myc ; Globins/genetics ; Hematopoiesis ; *Hematopoietic Stem Cell Transplantation ; Hematopoietic Stem Cells/*cytology ; Hemoglobin A/analysis ; Hemoglobin, Sickle/analysis ; Humans ; Kidney Concentrating Ability ; Kruppel-Like Transcription Factors/genetics ; Male ; Mice ; Octamer Transcription Factor-3/genetics ; Pluripotent Stem Cells/*cytology ; SOXB1 Transcription Factors ; Trans-Activators/genetics ; Transduction, Genetic
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  • 79
    Publication Date: 2007-04-28
    Description: MicroRNAs are small RNA species involved in biological control at multiple levels. Using genetic deletion and transgenic approaches, we show that the evolutionarily conserved microRNA-155 (miR-155) has an important role in the mammalian immune system, specifically in regulating T helper cell differentiation and the germinal center reaction to produce an optimal T cell-dependent antibody response. miR-155 exerts this control, at least in part, by regulating cytokine production. These results also suggest that individual microRNAs can exert critical control over mammalian differentiation processes in vivo.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thai, To-Ha -- Calado, Dinis Pedro -- Casola, Stefano -- Ansel, K Mark -- Xiao, Changchun -- Xue, Yingzi -- Murphy, Andrew -- Frendewey, David -- Valenzuela, David -- Kutok, Jeffery L -- Schmidt-Supprian, Marc -- Rajewsky, Nikolaus -- Yancopoulos, George -- Rao, Anjana -- Rajewsky, Klaus -- AI064345/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2007 Apr 27;316(5824):604-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉CBR Institute for Biomedical Research, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17463289" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/*immunology ; Cell Differentiation ; Cells, Cultured ; Cytokines/biosynthesis ; Germinal Center/*immunology ; Immunoglobulin G/analysis ; Lymphocyte Activation ; Lymphotoxin-alpha/biosynthesis ; Lymphotoxin-beta/biosynthesis ; Mice ; Mice, Knockout ; Mice, Transgenic ; MicroRNAs/genetics/*physiology ; Nitrophenols/immunology ; Peyer's Patches/immunology ; Phenylacetates ; Somatic Hypermutation, Immunoglobulin ; Spleen/immunology ; T-Lymphocytes/cytology/*immunology/metabolism ; Th1 Cells/cytology/immunology ; Th2 Cells/cytology/immunology ; Tumor Necrosis Factor-alpha/biosynthesis
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  • 80
    Publication Date: 2007-06-02
    Description: Human bipedalism is commonly thought to have evolved from a quadrupedal terrestrial precursor, yet some recent paleontological evidence suggests that adaptations for bipedalism arose in an arboreal context. However, the adaptive benefit of arboreal bipedalism has been unknown. Here we show that it allows the most arboreal great ape, the orangutan, to access supports too flexible to be negotiated otherwise. Orangutans react to branch flexibility like humans running on springy tracks, by increasing knee and hip extension, whereas all other primatesdothe reverse. Human bipedalism is thus less an innovation than an exploitation of a locomotor behavior retained from the common great ape ancestor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thorpe, S K S -- Holder, R L -- Crompton, R H -- New York, N.Y. -- Science. 2007 Jun 1;316(5829):1328-31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17540902" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Biological ; Animals ; *Biological Evolution ; Biomechanical Phenomena ; Ecosystem ; Hand/anatomy & histology/physiology ; Hindlimb/anatomy & histology/physiology ; Hominidae/*anatomy & histology/*physiology ; Humans ; *Locomotion ; Pongo pygmaeus/anatomy & histology/*physiology ; Posture ; *Trees ; *Walking
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  • 81
    Publication Date: 2007-04-28
    Description: One component of the circadian clock in mammals is the Clock-Bmal1 heterodimeric transcription factor. Among its downstream targets, two genes, Cry1 and Cry2, encode inhibitors of the Clock-Bmal1 complex that establish a negative-feedback loop. We found that both Cry1 and Cry2 proteins are ubiquitinated and degraded via the SCF(Fbxl3) ubiquitin ligase complex. This regulation by SCF(Fbxl3) is a prerequisite for the efficient and timely reactivation of Clock-Bmal1 and the consequent expression of Per1 and Per2, two regulators of the circadian clock that display tumor suppressor activity. Silencing of Fbxl3 produced no effect in Cry1-/-;Cry2-/- cells, which shows that Fbxl3 controls clock oscillations by mediating the degradation of CRY proteins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Busino, Luca -- Bassermann, Florian -- Maiolica, Alessio -- Lee, Choogon -- Nolan, Patrick M -- Godinho, Sofia I H -- Draetta, Giulio F -- Pagano, Michele -- MC_U142684172/Medical Research Council/United Kingdom -- MC_U142684173/Medical Research Council/United Kingdom -- MC_U142684175/Medical Research Council/United Kingdom -- R01-GM57587/GM/NIGMS NIH HHS/ -- R21-CA125173/CA/NCI NIH HHS/ -- R37-CA76584/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2007 May 11;316(5826):900-4. Epub 2007 Apr 26.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, NYU Cancer Institute, New York University School of Medicine, 550 First Avenue, MSB 599, New York, NY 10016, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17463251" target="_blank"〉PubMed〈/a〉
    Keywords: ARNTL Transcription Factors ; Animals ; Basic Helix-Loop-Helix Transcription Factors/metabolism ; CLOCK Proteins ; Cell Cycle Proteins/genetics/metabolism ; Cells, Cultured ; *Circadian Rhythm/genetics ; Cryptochromes ; F-Box Proteins/genetics/*metabolism ; Flavoproteins/genetics/*metabolism ; HeLa Cells ; Humans ; Mice ; NIH 3T3 Cells ; Nuclear Proteins/genetics/metabolism ; Period Circadian Proteins ; Promoter Regions, Genetic ; RNA Interference ; SKP Cullin F-Box Protein Ligases/*metabolism ; Trans-Activators/metabolism ; Transcription Factors/genetics/metabolism ; Transfection ; Ubiquitin/metabolism
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  • 82
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2007-10-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Calvert, Paul -- New York, N.Y. -- Science. 2007 Oct 12;318(5848):208-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Materials and Textiles, University of Massachusetts Dartmouth, North Dartmouth, MA 02747 USA. pcalvert@umassd.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17932278" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacteria ; *Cell Communication ; Cell Survival ; Cells, Cultured ; Computer Peripherals ; *Cytological Techniques/instrumentation ; Humans ; *Microbiological Techniques/instrumentation ; Printing/*instrumentation ; *Tissue Engineering ; Yeasts
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  • 83
    Publication Date: 2006-12-13
    Description: Because animals require oxygen, an increase in late-Neoproterozoic oxygen concentrations has been suggested as a stimulus for their evolution. The iron content of deep-sea sediments shows that the deep ocean was anoxic and ferruginous before and during the Gaskiers glaciation 580 million years ago and that it became oxic afterward. The first known members of the Ediacara biota arose shortly after the Gaskiers glaciation, suggesting a causal link between their evolution and this oxygenation event. A prolonged stable oxic environment may have permitted the emergence of bilateral motile animals some 25 million years later.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Canfield, Don E -- Poulton, Simon W -- Narbonne, Guy M -- New York, N.Y. -- Science. 2007 Jan 5;315(5808):92-5. Epub 2006 Dec 7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Nordic Center for Earth Evolution (NordCEE) and Institute of Biology, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark. dec@biology.sdu.dk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17158290" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Atmosphere ; *Biological Evolution ; *Fossils ; Geologic Sediments/chemistry ; Ice Cover ; Iron/analysis ; Newfoundland and Labrador ; Oxidation-Reduction ; Oxygen/*analysis ; Seawater/*chemistry ; Sulfates/analysis ; Time
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  • 84
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2007-01-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sapienza, Carmen -- New York, N.Y. -- Science. 2007 Jan 5;315(5808):46-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Fels Institute for Cancer Research and Department of Pathology, Temple University Medical School, 3307 North Broad Street, Philadelphia, PA 19140, USA. sapienza@temple.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17204629" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axonemal Dyneins ; Body Patterning ; Cell Line ; Cells, Cultured ; Chromatids/*physiology ; *Chromosome Segregation ; DNA Replication ; Dyneins/*genetics/*physiology ; Ectoderm/*cytology ; Embryonic Stem Cells/*cytology ; Endoderm/*cytology ; Interphase ; Mice ; Mitosis ; Recombination, Genetic ; Spindle Apparatus/physiology/ultrastructure
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  • 85
    Publication Date: 2007-09-22
    Description: Whether the Late Pleistocene hominin fossils from Flores, Indonesia, represent a new species, Homo floresiensis, or pathological modern humans has been debated. Analysis of three wrist bones from the holotype specimen (LB1) shows that it retains wrist morphology that is primitive for the African ape-human clade. In contrast, Neandertals and modern humans share derived wrist morphology that forms during embryogenesis, which diminishes the probability that pathology could result in the normal primitive state. This evidence indicates that LB1 is not a modern human with an undiagnosed pathology or growth defect; rather, it represents a species descended from a hominin ancestor that branched off before the origin of the clade that includes modern humans, Neandertals, and their last common ancestor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tocheri, Matthew W -- Orr, Caley M -- Larson, Susan G -- Sutikna, Thomas -- Jatmiko -- Saptomo, E Wahyu -- Due, Rokus Awe -- Djubiantono, Tony -- Morwood, Michael J -- Jungers, William L -- New York, N.Y. -- Science. 2007 Sep 21;317(5845):1743-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Human Origins Program, Department of Anthropology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20013, USA. tocherim@si.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17885135" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Carpal Bones/anatomy & histology ; *Fossils ; Hominidae/*anatomy & histology/classification ; Humans ; Indonesia ; Wrist/*anatomy & histology
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  • 86
    Publication Date: 2007-05-15
    Description: Hematopoietic stem cells in the bone marrow give rise to lymphoid progenitors, which subsequently differentiate into B and T lymphocytes. Here we show that the proto-oncogene LRF plays an essential role in the B versus T lymphoid cell-fate decision. We demonstrate that LRF is key for instructing early lymphoid progenitors in mice to develop into B lineage cells by repressing T cell-instructive signals produced by the cell-fate signal protein, Notch. We propose a new model for lymphoid lineage commitment, in which LRF acts as a master regulator of the cell's determination of B versus T lineage.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2978506/" 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/PMC2978506/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maeda, Takahiro -- Merghoub, Taha -- Hobbs, Robin M -- Dong, Lin -- Maeda, Manami -- Zakrzewski, Johannes -- van den Brink, Marcel R M -- Zelent, Arthur -- Shigematsu, Hirokazu -- Akashi, Koichi -- Teruya-Feldstein, Julie -- Cattoretti, Giorgio -- Pandolfi, Pier Paolo -- CA-102142/CA/NCI NIH HHS/ -- R01 CA102142/CA/NCI NIH HHS/ -- R01 CA102142-06A1/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2007 May 11;316(5826):860-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cancer Biology and Genetics Program, Memorial Sloan-Kettering Cancer Center, 1275 York Avenue, New York, NY 10021, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17495164" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/*cytology/physiology ; Bone Marrow Cells/cytology ; Cell Lineage ; Cells, Cultured ; DNA-Binding Proteins/*genetics/physiology ; Gene Deletion ; Hematopoietic Stem Cells/*cytology/physiology ; *Lymphopoiesis ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Models, Biological ; *Proto-Oncogenes ; Receptors, Notch/*metabolism ; Signal Transduction ; T-Lymphocytes/*cytology/physiology ; Thymus Gland/cytology ; Transcription Factors/*genetics/physiology
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  • 87
    Publication Date: 2007-09-01
    Description: MicroRNAs (miRNAs) are evolutionarily conserved, 18- to 25-nucleotide, non-protein coding transcripts that posttranscriptionally regulate gene expression during development. miRNAs also occur in postmitotic cells, such as neurons in the mammalian central nervous system, but their function is less well characterized. We investigated the role of miRNAs in mammalian midbrain dopaminergic neurons (DNs). We identified a miRNA, miR-133b, that is specifically expressed in midbrain DNs and is deficient in midbrain tissue from patients with Parkinson's disease. miR-133b regulates the maturation and function of midbrain DNs within a negative feedback circuit that includes the paired-like homeodomain transcription factor Pitx3. We propose a role for this feedback circuit in the fine-tuning of dopaminergic behaviors such as locomotion.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2782470/" 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/PMC2782470/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, Jongpil -- Inoue, Keiichi -- Ishii, Jennifer -- Vanti, William B -- Voronov, Sergey V -- Murchison, Elizabeth -- Hannon, Gregory -- Abeliovich, Asa -- R01 NS064433/NS/NINDS NIH HHS/ -- R01 NS064433-01/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2007 Aug 31;317(5842):1220-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Pathology and Neurology, Center for Neurobiology and Behavior, and Taub Institute, Columbia University, College of Physicians and Surgeons 15-403, 630 West 168th Street, New York, NY 10032, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17761882" target="_blank"〉PubMed〈/a〉
    Keywords: 3' Untranslated Regions/metabolism ; Aged ; Aged, 80 and over ; Animals ; Cell Differentiation ; Cell Line ; Cells, Cultured ; Dopamine/*metabolism ; Embryonic Stem Cells ; *Feedback, Physiological ; Female ; Gene Expression Regulation ; Homeodomain Proteins/*metabolism ; Humans ; Locomotion ; Male ; Mesencephalon/cytology/*metabolism ; Mice ; MicroRNAs/*metabolism ; Middle Aged ; Models, Biological ; Neurons/cytology/*metabolism ; Parkinson Disease/metabolism ; Rats ; Ribonuclease III/genetics/metabolism ; Transcription Factors/*metabolism ; Transcription, Genetic
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  • 88
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2007-09-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hebert, Sebastien S -- De Strooper, Bart -- New York, N.Y. -- Science. 2007 Aug 31;317(5842):1179-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Human Genetics, VIB and KULeuven, Herestraat 49, Leuven, Belgium. bart.destrooper@med.kuleuven.be〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17761871" target="_blank"〉PubMed〈/a〉
    Keywords: 3' Untranslated Regions/metabolism ; Animals ; Brain/physiology/*physiopathology ; Cell Death ; Cell Differentiation ; Cells, Cultured ; Dopamine/*metabolism ; Feedback, Physiological ; Humans ; Mice ; MicroRNAs/genetics/*metabolism ; Neurodegenerative Diseases/genetics/*physiopathology ; Neurons/cytology/metabolism/*physiology ; Parkinson Disease/genetics/*physiopathology ; RNA, Messenger/genetics/metabolism ; Ribonuclease III/metabolism ; Transcription Factors/metabolism
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  • 89
    Publication Date: 2007-08-04
    Description: Toll-like receptors (TLRs) trigger the production of inflammatory cytokines and shape adaptive and innate immunity to pathogens. We report the identification of B cell leukemia (Bcl)-3 as an essential negative regulator of TLR signaling. By blocking ubiquitination of p50, a member of the nuclear factor (NF)-kappaB family, Bcl-3 stabilizes a p50 complex that inhibits gene transcription. As a consequence, Bcl-3-deficient mice and cells were found to be hypersensitive to TLR activation and unable to control responses to lipopolysaccharides. Thus, p50 ubiquitination blockade by Bcl-3 limits the strength of TLR responses and maintains innate immune homeostasis. These findings indicate that the p50 ubiquitination pathway can be selectively targeted to control deleterious inflammatory diseases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carmody, Ruaidhri J -- Ruan, Qingguo -- Palmer, Scott -- Hilliard, Brendan -- Chen, Youhai H -- AI069289/AI/NIAID NIH HHS/ -- AI50059/AI/NIAID NIH HHS/ -- DK070691/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2007 Aug 3;317(5838):675-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology and Laboratory Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17673665" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Cells, Cultured ; DNA/metabolism ; Female ; Half-Life ; Immune Tolerance ; Immunity, Innate ; Lipopolysaccharides/immunology ; Macrophage Activation ; Macrophages, Peritoneal/*immunology/metabolism ; Male ; Mice ; Mice, Inbred C57BL ; NF-kappa B p50 Subunit/*metabolism ; Promoter Regions, Genetic ; Proto-Oncogene Proteins/genetics/*metabolism ; *Signal Transduction ; Toll-Like Receptors/*metabolism ; Transcription Factor RelA/metabolism ; Transcription Factors/genetics/*metabolism ; Transcription, Genetic ; Tumor Necrosis Factor-alpha/genetics/metabolism ; Ubiquitin/metabolism
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  • 90
    Publication Date: 2007-04-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Martin, William -- Dagan, Tal -- Koonin, Eugene V -- Dipippo, Jonathan L -- Gogarten, J Peter -- Lake, James A -- New York, N.Y. -- Science. 2007 Apr 27;316(5824):542-3; author reply 542-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17463271" target="_blank"〉PubMed〈/a〉
    Keywords: Archaeal Proteins/chemistry ; Bacterial Proteins/chemistry ; *Biological Evolution ; *Eukaryotic Cells ; Evolution, Molecular ; Fungal Proteins/chemistry ; Genomics ; Humans ; Mitochondria ; Phagocytosis ; Prokaryotic Cells ; Proteins/*chemistry
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  • 91
    Publication Date: 2007-09-29
    Description: The presence of workers that forgo reproduction and care for their siblings is a defining feature of eusociality and a major challenge for evolutionary theory. It has been proposed that worker behavior evolved from maternal care behavior. We explored this idea by studying gene expression in the primitively eusocial wasp Polistes metricus. Because little genomic information existed for this species, we used 454 sequencing to generate 391,157 brain complementary DNA reads, resulting in robust hits to 3017 genes from the honey bee genome, from which we identified and assayed orthologs of 32 honey bee behaviorally related genes. Wasp brain gene expression in workers was more similar to that in foundresses, which show maternal care, than to that in queens and gynes, which do not. Insulin-related genes were among the differentially regulated genes, suggesting that the evolution of eusociality involved major nutritional and reproductive pathways.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Toth, Amy L -- Varala, Kranthi -- Newman, Thomas C -- Miguez, Fernando E -- Hutchison, Stephen K -- Willoughby, David A -- Simons, Jan Fredrik -- Egholm, Michael -- Hunt, James H -- Hudson, Matthew E -- Robinson, Gene E -- New York, N.Y. -- Science. 2007 Oct 19;318(5849):441-4. Epub 2007 Sep 27.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Entomology and Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA. amytoth@uiuc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17901299" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bees/genetics ; *Biological Evolution ; Brain/metabolism ; Female ; *Gene Expression ; Gene Expression Regulation ; *Genes, Insect ; Insect Proteins/genetics/physiology ; *Maternal Behavior ; Models, Animal ; Reproduction ; *Social Behavior ; Wasps/*genetics/metabolism/physiology
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  • 92
    Publication Date: 2007-09-08
    Description: Humans have many cognitive skills not possessed by their nearest primate relatives. The cultural intelligence hypothesis argues that this is mainly due to a species-specific set of social-cognitive skills, emerging early in ontogeny, for participating and exchanging knowledge in cultural groups. We tested this hypothesis by giving a comprehensive battery of cognitive tests to large numbers of two of humans' closest primate relatives, chimpanzees and orangutans, as well as to 2.5-year-old human children before literacy and schooling. Supporting the cultural intelligence hypothesis and contradicting the hypothesis that humans simply have more "general intelligence," we found that the children and chimpanzees had very similar cognitive skills for dealing with the physical world but that the children had more sophisticated cognitive skills than either of the ape species for dealing with the social world.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Herrmann, Esther -- Call, Josep -- Hernandez-Lloreda, Maraa Victoria -- Hare, Brian -- Tomasello, Michael -- New York, N.Y. -- Science. 2007 Sep 7;317(5843):1360-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max Planck Institute for Evolutionary Anthropology, Leipzig, D-04103, Germany. eherrman@eva.mpg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17823346" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Child Development/physiology ; Child, Preschool ; *Cognition ; Cultural Evolution ; *Culture ; Female ; Humans ; Intelligence Tests ; Male ; Organ Size ; Pan troglodytes/*physiology ; Pongo pygmaeus/*physiology ; Species Specificity
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  • 93
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2007-09-08
    Description: The evolution of unusually large brains in some groups of animals, notably primates, has long been a puzzle. Although early explanations tended to emphasize the brain's role in sensory or technical competence (foraging skills, innovations, and way-finding), the balance of evidence now clearly favors the suggestion that it was the computational demands of living in large, complex societies that selected for large brains. However, recent analyses suggest that it may have been the particular demands of the more intense forms of pairbonding that was the critical factor that triggered this evolutionary development. This may explain why primate sociality seems to be so different from that found in most other birds and mammals: Primate sociality is based on bonded relationships of a kind that are found only in pairbonds in other taxa.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dunbar, R I M -- Shultz, Susanne -- New York, N.Y. -- Science. 2007 Sep 7;317(5843):1344-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉British Academy Centenary Research Project, School of Biological Sciences, University of Liverpool, Liverpool L69 7ZB, UK. rimd@liverpool.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17823343" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Birds ; Brain/*physiology ; Humans ; Interpersonal Relations ; Mammals ; Organ Size ; Pair Bond ; Primates/*physiology ; *Social Behavior
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  • 94
    Publication Date: 2007-10-06
    Description: Telomeres, the DNA-protein complexes located at the end of linear eukaryotic chromosomes, are essential for chromosome stability. Until now, telomeres have been considered to be transcriptionally silent. We demonstrate that mammalian telomeres are transcribed into telomeric repeat-containing RNA (TERRA). TERRA molecules are heterogeneous in length, are transcribed from several subtelomeric loci toward chromosome ends, and localize to telomeres. We also show that suppressors with morphogenetic defects in genitalia (SMG) proteins, which are effectors of nonsense-mediated messenger RNA decay, are enriched at telomeres in vivo, negatively regulate TERRA association with chromatin, and protect chromosome ends from telomere loss. Thus, telomeres are actively transcribed into TERRA, and SMG factors represent a molecular link between TERRA regulation and the maintenance of telomere integrity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Azzalin, Claus M -- Reichenbach, Patrick -- Khoriauli, Lela -- Giulotto, Elena -- Lingner, Joachim -- New York, N.Y. -- Science. 2007 Nov 2;318(5851):798-801. Epub 2007 Oct 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Swiss Institute for Experimental Cancer Research (ISREC), CH-1066 Epalinges, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17916692" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Blotting, Northern ; Cells, Cultured ; Chromosomes, Human ; Chromosomes, Mammalian ; HeLa Cells ; Humans ; In Situ Hybridization, Fluorescence ; Mice ; Molecular Sequence Data ; Proteins/metabolism ; RNA/*genetics ; Repetitive Sequences, Nucleic Acid ; Telomerase/physiology ; Telomere/*genetics ; Transcription, Genetic ; Tumor Cells, Cultured
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  • 95
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2007-04-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Travis, John -- New York, N.Y. -- Science. 2007 Apr 20;316(5823):390-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17446384" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Cell Differentiation ; Developmental Biology ; Embryo, Nonmammalian/cytology/physiology ; Embryonic Development ; Epigenesis, Genetic ; Female ; Gene Expression ; *Germ Cells/cytology/physiology ; Male ; Ovum/cytology ; *Reproduction ; Spermatozoa/cytology ; Stem Cells/cytology/physiology
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 96
    Publication Date: 2008-03-01
    Description: Long-term potentiation (LTP) at glutamatergic synapses is considered to underlie learning and memory and is associated with the enlargement of dendritic spines. Because the consolidation of memory and LTP require protein synthesis, it is important to clarify how protein synthesis affects spine enlargement. In rat brain slices, the repetitive pairing of postsynaptic spikes and two-photon uncaging of glutamate at single spines (a spike-timing protocol) produced both immediate and gradual phases of spine enlargement in CA1 pyramidal neurons. The gradual enlargement was strongly dependent on protein synthesis and brain-derived neurotrophic factor (BDNF) action, often associated with spine twitching, and was induced specifically at the spines that were immediately enlarged by the synaptic stimulation. Thus, this spike-timing protocol is an efficient trigger for BDNF secretion and induces protein synthesis-dependent long-term enlargement at the level of single spines.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4218863/" 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/PMC4218863/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tanaka, Jun-Ichi -- Horiike, Yoshihiro -- Matsuzaki, Masanori -- Miyazaki, Takashi -- Ellis-Davies, Graham C R -- Kasai, Haruo -- R01 GM053395/GM/NIGMS NIH HHS/ -- R01 GM053395-12/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2008 Mar 21;319(5870):1683-7. doi: 10.1126/science.1152864. Epub 2008 Feb 28.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Structural Physiology, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, University of Tokyo, Tokyo 113-0033, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18309046" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Brain-Derived Neurotrophic Factor/*metabolism/pharmacology ; Cells, Cultured ; Dendritic Spines/*physiology/*ultrastructure ; Glutamic Acid/metabolism ; *Neuronal Plasticity ; Patch-Clamp Techniques ; *Protein Biosynthesis ; Protein Synthesis Inhibitors/pharmacology ; Pyramidal Cells/physiology/ultrastructure ; Rats ; Rats, Sprague-Dawley ; Receptor, trkB/metabolism ; Synapses/*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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  • 97
    Publication Date: 2008-05-24
    Description: Mammals are metagenomic in that they are composed of not only their own gene complements but also those of all of their associated microbes. To understand the coevolution of the mammals and their indigenous microbial communities, we conducted a network-based analysis of bacterial 16S ribosomal RNA gene sequences from the fecal microbiota of humans and 59 other mammalian species living in two zoos and in the wild. The results indicate that host diet and phylogeny both influence bacterial diversity, which increases from carnivory to omnivory to herbivory; that bacterial communities codiversified with their hosts; and that the gut microbiota of humans living a modern life-style is typical of omnivorous primates.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2649005/" 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/PMC2649005/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ley, Ruth E -- Hamady, Micah -- Lozupone, Catherine -- Turnbaugh, Peter J -- Ramey, Rob Roy -- Bircher, J Stephen -- Schlegel, Michael L -- Tucker, Tammy A -- Schrenzel, Mark D -- Knight, Rob -- Gordon, Jeffrey I -- DK30292/DK/NIDDK NIH HHS/ -- DK70977/DK/NIDDK NIH HHS/ -- DK78669/DK/NIDDK NIH HHS/ -- P01 DK078669/DK/NIDDK NIH HHS/ -- P01 DK078669-02/DK/NIDDK NIH HHS/ -- R01 DK030292/DK/NIDDK NIH HHS/ -- R01 DK030292-24/DK/NIDDK NIH HHS/ -- R01 DK070977/DK/NIDDK NIH HHS/ -- R01 DK070977-04/DK/NIDDK NIH HHS/ -- T32 GM065103/GM/NIGMS NIH HHS/ -- T32 GM065103-07/GM/NIGMS NIH HHS/ -- T32GM065103/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2008 Jun 20;320(5883):1647-51. doi: 10.1126/science.1155725. Epub 2008 May 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Genome Sciences, Washington University School of Medicine, St. Louis, MO 63108, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18497261" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; Animals ; Animals, Wild/classification/genetics/microbiology ; Animals, Zoo/classification/genetics/microbiology ; Bacteria/*classification/genetics/isolation & purification ; *Bacterial Physiological Phenomena ; *Biological Evolution ; Carnivora/classification/genetics/microbiology ; *Diet ; Feces/microbiology ; Gastrointestinal Tract/*microbiology ; Genes, rRNA ; Humans ; Mammals/classification/genetics/*microbiology ; Molecular Sequence Data ; *Phylogeny ; Primates/classification/genetics/microbiology ; RNA, Ribosomal, 16S/genetics
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    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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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-09-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roy, Kaustuv -- New York, N.Y. -- Science. 2008 Sep 12;321(5895):1451-2. doi: 10.1126/science.1163097.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Ecology, Behavior and Evolution, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA. kroy@ucsd.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18787156" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Body Size ; Climate ; Ecosystem ; Extinction, Biological ; Greenhouse Effect ; Models, Biological ; Population Dynamics ; Stochastic Processes ; Temperature
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    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 99
    Publication Date: 2008-05-20
    Description: Cannabinoid receptor 1 (CB1R) regulates neuronal differentiation. To understand the logic underlying decision-making in the signaling network controlling CB1R-induced neurite outgrowth, we profiled the activation of several hundred transcription factors after cell stimulation. We assembled an in silico signaling network by connecting CB1R to 23 activated transcription factors. Statistical analyses of this network predicted a role for the breast cancer 1 protein BRCA1 in neuronal differentiation and a new pathway from CB1R through phosphoinositol 3-kinase to the transcription factor paired box 6 (PAX6). Both predictions were experimentally confirmed. Results of transcription factor activation experiments that used pharmacological inhibitors of kinases revealed a network organization of partial OR gates regulating kinases stacked above AND gates that control transcription factors, which together allow for distributed decision-making in CB1R-induced neurite outgrowth.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2776723/" 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/PMC2776723/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bromberg, Kenneth D -- Ma'ayan, Avi -- Neves, Susana R -- Iyengar, Ravi -- 1 S10 RR0 9145-01/RR/NCRR NIH HHS/ -- 5R24 CA095823-04/CA/NCI NIH HHS/ -- GM072853/GM/NIGMS NIH HHS/ -- GM54508/GM/NIGMS NIH HHS/ -- P50 GM071558/GM/NIGMS NIH HHS/ -- P50 GM071558-01A2/GM/NIGMS NIH HHS/ -- P50 GM071558-01A20007/GM/NIGMS NIH HHS/ -- P50 GM071558-02/GM/NIGMS NIH HHS/ -- P50 GM071558-020007/GM/NIGMS NIH HHS/ -- P50 GM071558-030007/GM/NIGMS NIH HHS/ -- P50-071558/PHS HHS/ -- R01 GM054508/GM/NIGMS NIH HHS/ -- R01 GM054508-21/GM/NIGMS NIH HHS/ -- R01 GM072853/GM/NIGMS NIH HHS/ -- R01 GM072853-04/GM/NIGMS NIH HHS/ -- T32 CA88796/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2008 May 16;320(5878):903-9. doi: 10.1126/science.1152662.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology and Systems Therapeutics, Mount Sinai School of Medicine, New York, NY 10029, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18487186" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; BRCA1 Protein/metabolism ; Cell Differentiation ; Cell Line, Tumor ; Cells, Cultured ; Computational Biology ; Computer Simulation ; Eye Proteins/metabolism ; Hippocampus/cytology ; Homeodomain Proteins/metabolism ; Metabolic Networks and Pathways ; Mice ; Neurites/*physiology ; Neurons/*cytology/metabolism ; Paired Box Transcription Factors/metabolism ; Phosphatidylinositol 3-Kinases/metabolism ; Protein Interaction Mapping ; Rats ; Receptor, Cannabinoid, CB1/*metabolism ; Repressor Proteins/metabolism ; *Signal Transduction ; Transcription Factors/antagonists & inhibitors/*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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  • 100
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-12-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Grula, John W -- New York, N.Y. -- Science. 2008 Dec 12;322(5908):1633. doi: 10.1126/science.322.5908.1633.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19074329" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; DNA Transposable Elements ; *Gene Expression Regulation ; History, 20th Century
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    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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