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  • American Association for the Advancement of Science (AAAS)  (714)
  • American Society of Hematology
  • Essen : Verl. Glückauf
  • Krefeld : Geologischer Dienst Nordhein-Westfalen
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  • American Association for the Advancement of Science (AAAS)  (714)
  • American Society of Hematology
  • Essen : Verl. Glückauf
  • Krefeld : Geologischer Dienst Nordhein-Westfalen
  • Nature Publishing Group (NPG)  (378)
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  • 2005-2009  (714)
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  • 1
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-09-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rowley, Janet D -- Blumenthal, Thomas -- New York, N.Y. -- Science. 2008 Sep 5;321(5894):1302-4. doi: 10.1126/science.1163791.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of Chicago, 5841 South Maryland Avenue, MC 2115, Chicago, IL 60637, USA. jrowley@medicine.bsd.uchicago.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18772424" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Chromosomes, Human, Pair 17/genetics ; Chromosomes, Human, Pair 7/genetics ; Endometrial Neoplasms/genetics ; Endometrium/cytology/*metabolism ; Female ; Gene Fusion ; Gene Rearrangement ; Humans ; Macaca mulatta ; Menstrual Cycle ; Neoplasm Proteins/*genetics ; RNA, Guide/genetics ; RNA, Messenger/*genetics ; *Trans-Splicing ; Transcription Factors/*genetics ; *Translocation, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-03-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Leslie, Mitch -- New York, N.Y. -- Science. 2008 Mar 14;319(5869):1471. doi: 10.1126/science.319.5869.1471a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18339910" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anopheles/*drug effects/physiology ; DEET/*pharmacology ; Drosophila/drug effects/physiology ; Female ; Humans ; Insect Repellents/*pharmacology ; Odors ; Olfactory Receptor Neurons/drug effects/physiology ; Receptors, Odorant/*physiology
    Print ISSN: 0036-8075
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  • 3
    Publication Date: 2008-09-20
    Description: During mouse embryogenesis, reversion of imprinted X chromosome inactivation in the pluripotent inner cell mass of the female blastocyst is initiated by the repression of Xist from the paternal X chromosome. Here we report that key factors supporting pluripotency-Nanog, Oct3/4, and Sox2-bind within Xist intron 1 in undifferentiated embryonic stem (ES) cells. Whereas Nanog null ES cells display a reversible and moderate up-regulation of Xist in the absence of any apparent modification of Oct3/4 and Sox2 binding, the drastic release of all three factors from Xist intron 1 triggers rapid ectopic accumulation of Xist RNA. We conclude that the three main genetic factors underlying pluripotency cooperate to repress Xist and thus couple X inactivation reprogramming to the control of pluripotency during embryogenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Navarro, Pablo -- Chambers, Ian -- Karwacki-Neisius, Violetta -- Chureau, Corinne -- Morey, Celine -- Rougeulle, Claire -- Avner, Philip -- Biotechnology and Biological Sciences Research Council/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2008 Sep 19;321(5896):1693-5. doi: 10.1126/science.1160952.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut Pasteur, Unite de Genetique Moleculaire Murine, CNRS, URA2578, F-75015, Paris, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18802003" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blastocyst Inner Cell Mass/metabolism ; Cell Differentiation ; Cell Line ; DNA-Binding Proteins/*metabolism ; Embryonic Stem Cells/cytology/*metabolism ; Female ; HMGB Proteins/*metabolism ; Homeodomain Proteins/genetics/*metabolism ; Introns ; Male ; Mice ; Octamer Transcription Factor-3/genetics/*metabolism ; Pluripotent Stem Cells/cytology/*metabolism ; RNA, Long Noncoding ; RNA, Untranslated/*genetics/metabolism ; SOXB1 Transcription Factors ; Transcription Factors/*metabolism ; Up-Regulation ; X Chromosome/physiology ; *X Chromosome Inactivation
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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: 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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  • 5
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-10-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Couzin, Jennifer -- New York, N.Y. -- Science. 2008 Oct 17;322(5900):357. doi: 10.1126/science.322.5900.357.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18927361" target="_blank"〉PubMed〈/a〉
    Keywords: Breast Neoplasms/*genetics ; Female ; *Genetic Predisposition to Disease ; *Genetic Testing ; Humans ; Polymorphism, Single Nucleotide
    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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  • 6
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-06-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tewksbury, Joshua J -- Huey, Raymond B -- Deutsch, Curtis A -- New York, N.Y. -- Science. 2008 Jun 6;320(5881):1296-7. doi: 10.1126/science.1159328.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of Washington, Seattle, WA 98195, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18535231" target="_blank"〉PubMed〈/a〉
    Keywords: Acclimatization ; Amphibians/*physiology ; Animals ; *Climate ; *Ecosystem ; Fishes/*physiology ; Geography ; Oceans and Seas ; Population Dynamics ; Reptiles/*physiology ; Seasons ; Seawater ; Temperature ; *Tropical Climate
    Print ISSN: 0036-8075
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  • 7
    Publication Date: 2008-12-06
    Description: A high-fat diet causes activation of the regulatory protein c-Jun NH2-terminal kinase 1 (JNK1) and triggers development of insulin resistance. JNK1 is therefore a potential target for therapeutic treatment of metabolic syndrome. We explored the mechanism of JNK1 signaling by engineering mice in which the Jnk1 gene was ablated selectively in adipose tissue. JNK1 deficiency in adipose tissue suppressed high-fat diet-induced insulin resistance in the liver. JNK1-dependent secretion of the inflammatory cytokine interleukin-6 by adipose tissue caused increased expression of liver SOCS3, a protein that induces hepatic insulin resistance. Thus, JNK1 activation in adipose tissue can cause insulin resistance in the liver.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2643026/" 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/PMC2643026/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sabio, Guadalupe -- Das, Madhumita -- Mora, Alfonso -- Zhang, Zhiyou -- Jun, John Y -- Ko, Hwi Jin -- Barrett, Tamera -- Kim, Jason K -- Davis, Roger J -- DK52530/DK/NIDDK NIH HHS/ -- R01 CA065861/CA/NCI NIH HHS/ -- R01 CA065861-14/CA/NCI NIH HHS/ -- R01 DK080756/DK/NIDDK NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2008 Dec 5;322(5907):1539-43. doi: 10.1126/science.1160794.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, University of Massachusetts Medical School, Worcester, MA 01605, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19056984" target="_blank"〉PubMed〈/a〉
    Keywords: Adipocytes/enzymology/*metabolism ; Adipose Tissue/enzymology/metabolism ; Animals ; Dietary Fats/administration & dosage ; Enzyme Activation ; Glucose/metabolism ; Insulin/metabolism ; Insulin Receptor Substrate Proteins/metabolism ; *Insulin Resistance ; Interleukin-6/administration & dosage/metabolism ; Liver/*metabolism ; MAP Kinase Signaling System ; Mice ; Mitogen-Activated Protein Kinase 8/deficiency/genetics/*metabolism ; Phosphorylation ; Proto-Oncogene Proteins c-akt/metabolism ; *Signal Transduction ; *Stress, Physiological ; Suppressor of Cytokine Signaling Proteins/metabolism
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  • 8
    Publication Date: 2008-01-26
    Description: The hippocampus is an area of the brain involved in learning and memory. It contains parallel excitatory pathways referred to as the trisynaptic pathway (which carries information as follows: entorhinal cortex --〉 dentate gyrus --〉 CA3 --〉 CA1 --〉 entorhinal cortex) and the monosynaptic pathway (entorhinal cortex --〉 CA1 --〉 entorhinal cortex). We developed a generally applicable tetanus toxin-based method for transgenic mice that permits inducible and reversible inhibition of synaptic transmission and applied it to the trisynaptic pathway while preserving transmission in the monosynaptic pathway. We found that synaptic output from CA3 in the trisynaptic pathway is dispensable and the short monosynaptic pathway is sufficient for incremental spatial learning. In contrast, the full trisynaptic pathway containing CA3 is required for rapid one-trial contextual learning, for pattern completion-based memory recall, and for spatial tuning of CA1 cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nakashiba, Toshiaki -- Young, Jennie Z -- McHugh, Thomas J -- Buhl, Derek L -- Tonegawa, Susumu -- P50-MH58880/MH/NIMH NIH HHS/ -- R01-MH078821/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2008 Feb 29;319(5867):1260-4. doi: 10.1126/science.1151120. Epub 2008 Jan 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Picower Institute for Learning and Memory, Howard Hughes Medical Institute, RIKEN-MIT Neuroscience Research Center, Department of Biology and Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18218862" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Crosses, Genetic ; Dentate Gyrus/physiology ; Electrophysiology ; Entorhinal Cortex/physiology ; Excitatory Postsynaptic Potentials ; Female ; Hippocampus/*physiology ; Interneurons/physiology ; Male ; *Maze Learning ; Mental Recall ; Metalloendopeptidases/genetics ; Mice ; Mice, Transgenic ; Neural Pathways ; Pyramidal Cells/*physiology ; *Synaptic Transmission ; Tetanus Toxin/genetics
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  • 9
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-07-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Couzin, Jennifer -- New York, N.Y. -- Science. 2008 Jul 4;321(5885):31-3. doi: 10.1126/science.321.5885.31.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18599753" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anticonvulsants/therapeutic use ; Apnea/physiopathology ; Brain/physiopathology ; Death, Sudden/epidemiology/*etiology ; Electroencephalography ; Epilepsy/drug therapy/genetics/*physiopathology ; Epilepsy, Tonic-Clonic/drug therapy/genetics/*physiopathology ; Heart Arrest/physiopathology ; Heart Rate ; Humans ; Mice ; Mutation ; NAV1.1 Voltage-Gated Sodium Channel ; Nerve Tissue Proteins/genetics ; Serotonin/physiology ; Sodium Channels/genetics
    Print ISSN: 0036-8075
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  • 10
    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
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  • 11
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-01-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Grove, Elizabeth A -- New York, N.Y. -- Science. 2008 Jan 18;319(5861):288-9. doi: 10.1126/science.1153743.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, University of Chicago, Chicago, IL 60637, USA. egrove@bsd.uchicago.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18202278" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Body Patterning ; Brain Tissue Transplantation ; Cell Adhesion ; Cerebral Cortex/cytology/*embryology/transplantation ; Dentate Gyrus/embryology ; Hippocampus/cytology/*embryology ; Homeodomain Proteins/genetics/*metabolism ; LIM-Homeodomain Proteins ; Memory ; Mice ; Organizers, Embryonic/embryology/*physiology ; Prosencephalon/cytology/embryology ; Pyramidal Cells/embryology ; Transcription Factors/genetics/*metabolism
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  • 12
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-08-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 2008 Aug 1;321(5889):627. doi: 10.1126/science.321.5889.627b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18669835" target="_blank"〉PubMed〈/a〉
    Keywords: Female ; Humans ; Male ; *Sex Characteristics ; *Sports
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  • 13
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-01-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schreiber, Hans -- Rowley, Donald A -- New York, N.Y. -- Science. 2008 Jan 11;319(5860):164-5. doi: 10.1126/science.1153713.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, University of Chicago, Chicago, IL 60637, USA. hszz@midway.uchicago.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18187644" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigen Presentation ; Antigens, Neoplasm/genetics/*immunology ; Autoantigens/*immunology ; Autoimmunity ; CD8-Positive T-Lymphocytes/*immunology ; Histones/*immunology ; Humans ; Immunotherapy, Adoptive ; Lymphocytes, Tumor-Infiltrating/*immunology ; Male ; Mice ; Mutation ; Peptide Fragments/immunology ; Prostatic Neoplasms/genetics/*immunology/therapy
    Print ISSN: 0036-8075
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  • 14
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-08-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 2008 Aug 1;321(5889):625. doi: 10.1126/science.321.5889.625b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18669831" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Aged ; *Aging ; *Athletic Performance ; Child ; Female ; Humans ; Male ; Middle Aged ; *Sports
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  • 15
    Publication Date: 2008-12-17
    Description: Retinoic acid (RA) is an essential extrinsic inducer of meiotic initiation in mammalian germ cells. However, RA acts too widely in mammalian development to account, by itself, for the cell-type and temporal specificity of meiotic initiation. We considered parallels to yeast, in which extrinsic and intrinsic factors combine to restrict meiotic initiation. We demonstrate that, in mouse embryos, extrinsic and intrinsic factors together regulate meiotic initiation. The mouse RNA-binding protein DAZL, which is expressed by postmigratory germ cells, is a key intrinsic factor, enabling those cells to initiate meiosis in response to RA. Within a brief developmental window, Dazl-expressing germ cells in both XX and XY embryos actively acquire the ability to interpret RA as a meiosis-inducing signal.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lin, Yanfeng -- Gill, Mark E -- Koubova, Jana -- Page, David C -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2008 Dec 12;322(5908):1685-7. doi: 10.1126/science.1166340.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Whitehead Institute, and Department of Biology, Massachusetts Institute of Technology, 9 Cambridge Center, Cambridge, MA 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19074348" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing ; Animals ; Cell Cycle Proteins/metabolism ; Cell Nucleus/ultrastructure ; DNA Breaks ; DNA Repair ; Embryo, Mammalian/*cytology/physiology ; Endodeoxyribonucleases ; Esterases/metabolism ; Female ; Germ Cells/*cytology ; Male ; *Meiosis ; Mice ; Mice, Inbred C57BL ; Nuclear Proteins/genetics/metabolism ; Ovary/embryology/physiology ; Phosphoproteins/genetics/metabolism ; Proteins/metabolism ; RNA-Binding Proteins/genetics/*physiology ; Testis/embryology/physiology ; Tretinoin/pharmacology
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  • 16
    Publication Date: 2008-06-07
    Description: In mammals, dosage compensation is achieved by X-chromosome inactivation (XCI) in the female. The noncoding Xist gene initiates silencing of the X chromosome, whereas its antisense partner Tsix blocks silencing. The complementarity of Xist and Tsix RNAs has long suggested a role for RNA interference (RNAi). Here, we report that murine Xist and Tsix form duplexes in vivo. During XCI, the duplexes are processed to small RNAs (sRNAs), most likely on the active X (Xa) in a Dicer-dependent manner. Deleting Dicer compromises sRNA production and derepresses Xist. Furthermore, without Dicer, Xist RNA cannot accumulate and histone 3 lysine 27 trimethylation is blocked on the inactive X (Xi). The defects are partially rescued by truncating Tsix. Thus, XCI and RNAi intersect, down-regulating Xist on Xa and spreading silencing on Xi.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2584363/" 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/PMC2584363/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ogawa, Yuya -- Sun, Bryan K -- Lee, Jeannie T -- R01 GM058839/GM/NIGMS NIH HHS/ -- R01 GM058839-10/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2008 Jun 6;320(5881):1336-41. doi: 10.1126/science.1157676.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Massachusetts General Hospital and Howard Hughes Medical Institute, Boston, MA 02114, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18535243" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Differentiation ; Cells, Cultured ; DEAD-box RNA Helicases/genetics/metabolism ; Embryonic Stem Cells ; Endoribonucleases/genetics/metabolism ; Female ; Histones/metabolism ; Male ; Methylation ; Mice ; *RNA Interference ; RNA, Double-Stranded/metabolism ; RNA, Long Noncoding ; RNA, Small Nuclear/metabolism ; RNA, Untranslated/genetics/*metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; Ribonuclease III ; X Chromosome/*genetics/metabolism ; *X Chromosome Inactivation
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  • 17
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-08-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brown, Robert H Jr -- New York, N.Y. -- Science. 2008 Aug 29;321(5893):1169-70. doi: 10.1126/science.1163475.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Massachusetts General Hospital, 16th Street, Navy Yard, Charlestown, MA 02129, USA. rhbrown@partners.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18755965" target="_blank"〉PubMed〈/a〉
    Keywords: Aged, 80 and over ; Amyotrophic Lateral Sclerosis/enzymology/genetics/*pathology/therapy ; Animals ; *Cell Differentiation ; *Cellular Reprogramming ; Embryonic Stem Cells/cytology ; Female ; Fibroblasts/*cytology ; Humans ; Motor Neurons/*cytology/enzymology/transplantation ; Nervous System Diseases/pathology/therapy ; Neuroglia/cytology ; Pluripotent Stem Cells/*cytology ; Superoxide Dismutase/genetics/metabolism ; Transduction, Genetic
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  • 18
    Publication Date: 2008-05-31
    Description: The mapping of numbers onto space is fundamental to measurement and to mathematics. Is this mapping a cultural invention or a universal intuition shared by all humans regardless of culture and education? We probed number-space mappings in the Mundurucu, an Amazonian indigene group with a reduced numerical lexicon and little or no formal education. At all ages, the Mundurucu mapped symbolic and nonsymbolic numbers onto a logarithmic scale, whereas Western adults used linear mapping with small or symbolic numbers and logarithmic mapping when numbers were presented nonsymbolically under conditions that discouraged counting. This indicates that the mapping of numbers onto space is a universal intuition and that this initial intuition of number is logarithmic. The concept of a linear number line appears to be a cultural invention that fails to develop in the absence of formal education.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2610411/" 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/PMC2610411/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dehaene, Stanislas -- Izard, Veronique -- Spelke, Elizabeth -- Pica, Pierre -- New York, N.Y. -- Science. 2008 May 30;320(5880):1217-20. doi: 10.1126/science.1156540.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉INSERM, Cognitive Neuro-imaging Unit, Institut Federatif de Recherche (IFR) 49, Gif sur Yvette, France. stanislas.dehaene@cea.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18511690" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Anthropology, Cultural ; Brazil ; Child ; *Cultural Evolution ; Educational Status ; Female ; Humans ; *Indians, South American ; *Intuition ; Male ; *Mathematics ; Middle Aged
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  • 19
    Publication Date: 2008-07-26
    Description: Membrane and secretory proteins cotranslationally enter and are folded in the endoplasmic reticulum (ER). Misfolded or unassembled proteins are discarded by a process known as ER-associated degradation (ERAD), which involves their retrotranslocation into the cytosol. ERAD substrates frequently contain disulfide bonds that must be cleaved before their retrotranslocation. Here, we found that an ER-resident protein ERdj5 had a reductase activity, cleaved the disulfide bonds of misfolded proteins, and accelerated ERAD through its physical and functional associations with EDEM (ER degradation-enhancing alpha-mannosidase-like protein) and an ER-resident chaperone BiP. Thus, ERdj5 is a member of a supramolecular ERAD complex that recognizes and unfolds misfolded proteins for their efficient retrotranslocation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ushioda, Ryo -- Hoseki, Jun -- Araki, Kazutaka -- Jansen, Gregor -- Thomas, David Y -- Nagata, Kazuhiro -- New York, N.Y. -- Science. 2008 Jul 25;321(5888):569-72. doi: 10.1126/science.1159293.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cellular Biology, Institute for Frontier Medical Sciences, Kyoto University, Kyoto 606-8397, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18653895" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Amino Acid Substitution ; Animals ; Cell Line ; Endoplasmic Reticulum/*metabolism ; Glutathione/metabolism ; HSP40 Heat-Shock Proteins/chemistry/genetics/*metabolism ; Heat-Shock Proteins/metabolism ; Humans ; Immunoglobulin J-Chains/chemistry/metabolism ; Membrane Proteins/metabolism ; Mice ; Molecular Chaperones/chemistry/genetics/*metabolism ; Mutation ; Oxidation-Reduction ; Protein Disulfide Reductase (Glutathione)/metabolism ; Protein Disulfide-Isomerases/metabolism ; Protein Folding ; Protein Structure, Tertiary ; Proteins/chemistry/*metabolism ; Recombinant Proteins/chemistry/metabolism ; Transfection ; Two-Hybrid System Techniques ; alpha 1-Antitrypsin/chemistry/metabolism
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  • 20
    Publication Date: 2008-07-26
    Description: After disappointing results from all efficacy trials conducted to date, the field of microbicides research now faces substantial challenges. Poor coordination among interested parties and the choice of nonvalidated scientific targets for phase III studies have hampered progress and created mistrust about the use of microbicides as a method to prevent HIV-1 sexual transmission. Although new promising strategies are available, there will need to be serious reappraisals of how decisions are made to advance the next generations of candidates into clinical trials, and the use of appropriate animal models in this process will be critical.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2835691/" 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/PMC2835691/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Grant, Robert M -- Hamer, Dean -- Hope, Thomas -- Johnston, Rowena -- Lange, Joep -- Lederman, Michael M -- Lieberman, Judy -- Miller, Christopher J -- Moore, John P -- Mosier, Donald E -- Richman, Douglas D -- Schooley, Robert T -- Springer, Marty S -- Veazey, Ronald S -- Wainberg, Mark A -- U19 AI076981/AI/NIAID NIH HHS/ -- U19 AI076981-01/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2008 Jul 25;321(5888):532-4. doi: 10.1126/science.1160355.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉J. David Gladstone Institutes, University of California-San Francisco, San Francisco, CA 94518, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18653884" target="_blank"〉PubMed〈/a〉
    Keywords: Administration, Intravaginal ; Animals ; Anti-HIV Agents/*administration & dosage/pharmacology/therapeutic use ; Anti-Infective Agents, Local/*administration & dosage/pharmacology/therapeutic ; use ; Clinical Trials as Topic ; Disease Models, Animal ; Drug Evaluation, Preclinical ; Drug Therapy, Combination ; Female ; HIV Infections/drug therapy/*prevention & control/transmission ; HIV-1/*drug effects ; Humans ; Male ; Patient Compliance ; Polymers/*administration & dosage/pharmacology/therapeutic use ; Primates ; Reverse Transcriptase Inhibitors/*administration & ; dosage/pharmacology/therapeutic use ; Vaginal Diseases/drug therapy/*prevention & control
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  • 21
    Publication Date: 2008-09-20
    Description: Understanding cell morphogenesis during metazoan development requires knowledge of how cells and the extracellular matrix produce and respond to forces. We investigated how apoptosis, which remodels tissue by eliminating supernumerary cells, also contributes forces to a tissue (the amnioserosa) that promotes cell-sheet fusion (dorsal closure) in the Drosophila embryo. We showed that expression in the amnioserosa of proteins that suppress or enhance apoptosis slows or speeds dorsal closure, respectively. These changes correlate with the forces produced by the amnioserosa and the rate of seam formation between the cell sheets (zipping), key processes that contribute to closure. This apoptotic force is used by the embryo to drive cell-sheet movements during development, a role not classically attributed to apoptosis.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2757114/" 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/PMC2757114/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Toyama, Yusuke -- Peralta, Xomalin G -- Wells, Adrienne R -- Kiehart, Daniel P -- Edwards, Glenn S -- GM33830/GM/NIGMS NIH HHS/ -- R01 GM033830/GM/NIGMS NIH HHS/ -- R01 GM033830-24/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2008 Sep 19;321(5896):1683-6. doi: 10.1126/science.1157052.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Physics Department and Free Electron Laser Laboratory, Duke University, Durham, NC 27708, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18802000" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Apoptosis ; Cell Movement ; Cell Shape ; Drosophila melanogaster/cytology/*embryology ; Embryo, Nonmammalian/*cytology ; *Embryonic Development ; Epidermis/cytology/embryology ; Epithelial Cells/*cytology/physiology ; Epithelium/*embryology ; Female ; Microscopy, Confocal ; *Morphogenesis
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  • 22
    Publication Date: 2008-03-01
    Description: Intraluminal vesicles of multivesicular endosomes are either sorted for cargo degradation into lysosomes or secreted as exosomes into the extracellular milieu. The mechanisms underlying the sorting of membrane into the different populations of intraluminal vesicles are unknown. Here, we find that cargo is segregated into distinct subdomains on the endosomal membrane and that the transfer of exosome-associated domains into the lumen of the endosome did not depend on the function of the ESCRT (endosomal sorting complex required for transport) machinery, but required the sphingolipid ceramide. Purified exosomes were enriched in ceramide, and the release of exosomes was reduced after the inhibition of neutral sphingomyelinases. These results establish a pathway in intraendosomal membrane transport and exosome formation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Trajkovic, Katarina -- Hsu, Chieh -- Chiantia, Salvatore -- Rajendran, Lawrence -- Wenzel, Dirk -- Wieland, Felix -- Schwille, Petra -- Brugger, Britta -- Simons, Mikael -- New York, N.Y. -- Science. 2008 Feb 29;319(5867):1244-7. doi: 10.1126/science.1153124.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Biochemistry and Molecular Cell Biology, University of Gottingen, 37073 Gottingen, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18309083" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Cell Line, Tumor ; Ceramides/analysis/*metabolism ; Cytoplasmic Vesicles/chemistry/*metabolism/ultrastructure ; Endosomes/*metabolism/ultrastructure ; Humans ; Intracellular Membranes/*metabolism/ultrastructure ; Membrane Microdomains/*metabolism/ultrastructure ; Mice ; Myelin Proteolipid Protein/*metabolism ; Oligodendroglia/metabolism/ultrastructure ; Protein Transport ; Receptor, Epidermal Growth Factor/metabolism ; Recombinant Fusion Proteins/metabolism ; Sphingomyelin Phosphodiesterase/antagonists & inhibitors/metabolism
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  • 23
    Publication Date: 2008-04-19
    Description: Toll-like receptor 3 (TLR3) recognizes double-stranded RNA (dsRNA), a molecular signature of most viruses, and triggers inflammatory responses that prevent viral spread. TLR3 ectodomains (ECDs) dimerize on oligonucleotides of at least 40 to 50 base pairs in length, the minimal length required for signal transduction. To establish the molecular basis for ligand binding and signaling, we determined the crystal structure of a complex between two mouse TLR3-ECDs and dsRNA at 3.4 angstrom resolution. Each TLR3-ECD binds dsRNA at two sites located at opposite ends of the TLR3 horseshoe, and an intermolecular contact between the two TLR3-ECD C-terminal domains coordinates and stabilizes the dimer. This juxtaposition could mediate downstream signaling by dimerizing the cytoplasmic Toll interleukin-1 receptor (TIR) domains. The overall shape of the TLR3-ECD does not change upon binding to dsRNA.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2761030/" 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/PMC2761030/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, Lin -- Botos, Istvan -- Wang, Yan -- Leonard, Joshua N -- Shiloach, Joseph -- Segal, David M -- Davies, David R -- Z01 BC009254-33/Intramural NIH HHS/ -- New York, N.Y. -- Science. 2008 Apr 18;320(5874):379-81. doi: 10.1126/science.1155406.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Biology, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18420935" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Binding Sites ; Crystallography, X-Ray ; Dimerization ; Humans ; Ligands ; Mice ; Models, Molecular ; Molecular Sequence Data ; Mutant Proteins/chemistry/genetics/metabolism ; NF-kappa B/metabolism ; Nucleic Acid Conformation ; Protein Conformation ; Protein Structure, Tertiary ; RNA, Double-Stranded/*chemistry/*metabolism ; *Signal Transduction ; Toll-Like Receptor 3/*chemistry/genetics/*metabolism
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  • 24
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-11-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Guntheroth, Warren G -- New York, N.Y. -- Science. 2008 Nov 7;322(5903):856-7; author reply 856-7. doi: 10.1126/science.322.5903.856.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18988825" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autonomic Nervous System/metabolism ; Bradycardia ; Disease Models, Animal ; Humans ; Hypothermia ; Infant ; Mice ; Receptors, Serotonin/metabolism ; Serotonin/*metabolism ; Sudden Infant Death/*etiology
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  • 25
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-08-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lyon, Bruce E -- Chaine, Alexis S -- Winkler, David W -- New York, N.Y. -- Science. 2008 Aug 22;321(5892):1051-2. doi: 10.1126/science.1159822.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, CA 95064, USA. lyon@biology.ucsc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18719273" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Evolution ; *Climate ; Cues ; Environment ; Female ; Male ; *Oviposition ; Passeriformes/genetics/*physiology ; Phenotype ; Photoperiod ; Seasons ; Selection, Genetic ; Temperature ; Time Factors
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  • 26
    Publication Date: 2008-11-01
    Description: Spatial self-organization is the main theoretical explanation for the global occurrence of regular or otherwise coherent spatial patterns in ecosystems. Using mussel beds as a model ecosystem, we provide an experimental demonstration of spatial self-organization. Under homogeneous laboratory conditions, mussels developed regular patterns, similar to those in the field. An individual-based model derived from our experiments showed that interactions between individuals explained the observed patterns. Furthermore, a field study showed that pattern formation affected ecosystem-level processes in terms of improved growth and resistance to wave action. Our results imply that spatial self-organization is an important determinant of the structure and functioning of ecosystems, and it needs to be considered in their conservation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉van de Koppel, Johan -- Gascoigne, Joanna C -- Theraulaz, Guy -- Rietkerk, Max -- Mooij, Wolf M -- Herman, Peter M J -- D18866/Biotechnology and Biological Sciences Research Council/United Kingdom -- New York, N.Y. -- Science. 2008 Oct 31;322(5902):739-42. doi: 10.1126/science.1163952.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Spatial Ecology Department, the Netherlands Institute of Ecology (NIOO-KNAW), Post Office Box 140, 4400 AC Yerseke, Netherlands. J.vandeKoppel@nioo.knaw.nl〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18974353" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biomass ; Bivalvia/*physiology ; *Ecosystem ; Models, Biological ; Movement ; Population Dynamics ; Spatial Behavior ; Wales
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  • 27
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-02-16
    Description: Cadherin-mediated cell adhesion and signaling is essential for metazoan development and yet is absent from all other multicellular organisms. We found cadherin genes at numbers similar to those observed in complex metazoans in one of the closest single-celled relatives of metazoans, the choanoflagellate Monosiga brevicollis. Because the evolution of metazoans from a single-celled ancestor required novel cell adhesion and signaling mechanisms, the discovery of diverse cadherins in choanoflagellates suggests that cadherins may have contributed to metazoan origins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Abedin, Monika -- King, Nicole -- New York, N.Y. -- Science. 2008 Feb 15;319(5865):946-8. doi: 10.1126/science.1151084.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cell Biology and Center for Integrative Genomics, University of California at Berkeley, Berkeley, CA 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18276888" target="_blank"〉PubMed〈/a〉
    Keywords: Actin Cytoskeleton/metabolism ; Amino Acid Sequence ; Animals ; Base Sequence ; *Biological Evolution ; Cadherins/*chemistry/*genetics/physiology ; Cell Adhesion ; Ciona intestinalis/chemistry ; Cnidaria/chemistry ; Drosophila melanogaster/chemistry ; Eukaryota/*chemistry ; Eukaryotic Cells/*chemistry/physiology ; Mice ; Molecular Sequence Data ; Protein Structure, Tertiary ; Repetitive Sequences, Amino Acid ; Signal Transduction ; Tyrosine/metabolism ; src Homology Domains
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  • 28
    Publication Date: 2008-05-20
    Description: The mammalian circadian clockwork is modeled as transcriptional and posttranslational feedback loops, whereby circadian genes are periodically suppressed by their protein products. We show that adenosine 3',5'-monophosphate (cAMP) signaling constitutes an additional, bona fide component of the oscillatory network. cAMP signaling is rhythmic and sustains the transcriptional loop of the suprachiasmatic nucleus, determining canonical pacemaker properties of amplitude, phase, and period. This role is general and is evident in peripheral mammalian tissues and cell lines, which reveals an unanticipated point of circadian regulation in mammals qualitatively different from the existing transcriptional feedback model. We propose that daily activation of cAMP signaling, driven by the transcriptional oscillator, in turn sustains progression of transcriptional rhythms. In this way, clock output constitutes an input to subsequent cycles.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2735813/" 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/PMC2735813/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉O'Neill, John S -- Maywood, Elizabeth S -- Chesham, Johanna E -- Takahashi, Joseph S -- Hastings, Michael H -- MC_U105170643/Medical Research Council/United Kingdom -- U.1051.02.004(78799)/Medical Research Council/United Kingdom -- Biotechnology and Biological Sciences Research Council/United Kingdom -- Howard Hughes Medical Institute/ -- Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2008 May 16;320(5878):949-53. doi: 10.1126/science.1152506.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council (MRC) Laboratory of Molecular Biology, Hills Road, Cambridge CB2 0QH, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18487196" target="_blank"〉PubMed〈/a〉
    Keywords: Adenine/analogs & derivatives/pharmacology ; Adenylyl Cyclase Inhibitors ; Adenylyl Cyclases/metabolism ; Animals ; Biological Clocks/genetics/*physiology ; Cell Cycle Proteins/genetics/metabolism ; Circadian Rhythm/drug effects/genetics/*physiology ; Cyclic AMP/*metabolism ; Enzyme Inhibitors/pharmacology ; Feedback, Physiological ; Gene Expression Regulation/drug effects ; Guanine Nucleotide Exchange Factors/metabolism ; Mice ; Mice, Transgenic ; NIH 3T3 Cells ; Nuclear Proteins/genetics/metabolism ; Period Circadian Proteins ; Response Elements ; *Signal Transduction ; Suprachiasmatic Nucleus/drug effects/*metabolism ; Transcription Factors/genetics/metabolism ; Transcription, Genetic
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  • 29
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-01-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brecht, Michael -- Schmitz, Dietmar -- New York, N.Y. -- Science. 2008 Jan 4;319(5859):39-40. doi: 10.1126/science.1153231.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Bernstein Center for Computational Neuroscience, Humboldt-University Berlin, 10115 Berlin, Germany. michael.brecht@bccn-berlin.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18174422" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Association Learning ; Calcium/metabolism ; Long-Term Potentiation ; Memory ; Mice ; *Neuronal Plasticity ; Neurons/physiology ; Receptors, Metabotropic Glutamate/metabolism ; Receptors, N-Methyl-D-Aspartate/antagonists & inhibitors/metabolism ; Signal Transduction ; Somatosensory Cortex/cytology/*physiology ; Synapses/*physiology ; Synaptic Membranes/metabolism ; Vibrissae/innervation/physiology
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  • 30
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-11-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Machin, Stephen -- Pekkarinen, Tuomas -- New York, N.Y. -- Science. 2008 Nov 28;322(5906):1331-2. doi: 10.1126/science.1162573.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Economics, University College London, London, WC1 6BT, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19039123" target="_blank"〉PubMed〈/a〉
    Keywords: *Achievement ; Adolescent ; *Educational Measurement ; Female ; Humans ; Intelligence ; Internationality ; Male ; Mathematics ; Reading ; *Sex Characteristics
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  • 31
    Publication Date: 2008-03-01
    Description: Current theories hypothesize that dopamine neuronal firing encodes reward prediction errors. Although studies in nonhuman species provide direct support for this theory, functional magnetic resonance imaging (fMRI) studies in humans have focused on brain areas targeted by dopamine neurons [ventral striatum (VStr)] rather than on brainstem dopaminergic nuclei [ventral tegmental area (VTA) and substantia nigra]. We used fMRI tailored to directly image the brainstem. When primary rewards were used in an experiment, the VTA blood oxygen level-dependent (BOLD) response reflected a positive reward prediction error, whereas the VStr encoded positive and negative reward prediction errors. When monetary gains and losses were used, VTA BOLD responses reflected positive reward prediction errors modulated by the probability of winning. We detected no significant VTA BOLD response to nonrewarding events.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉D'Ardenne, Kimberlee -- McClure, Samuel M -- Nystrom, Leigh E -- Cohen, Jonathan D -- F32 MH072141/MH/NIMH NIH HHS/ -- P50 MH062196/MH/NIMH NIH HHS/ -- T32 MH065214/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2008 Feb 29;319(5867):1264-7. doi: 10.1126/science.1150605.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, Princeton University, Princeton, NJ 08544, USA. dardenne@princeton.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18309087" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Basal Ganglia/physiology ; Conditioning, Classical ; Cues ; Dopamine/*physiology ; Female ; Humans ; Magnetic Resonance Imaging ; Male ; Mental Processes/*physiology ; Oxygen/blood ; Probability ; Reinforcement (Psychology) ; *Reward ; Ventral Tegmental Area/*physiology
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  • 32
    Publication Date: 2008-10-11
    Description: Knowledge of mammalian diversity is still surprisingly disparate, both regionally and taxonomically. Here, we present a comprehensive assessment of the conservation status and distribution of the world's mammals. Data, compiled by 1700+ experts, cover all 5487 species, including marine mammals. Global macroecological patterns are very different for land and marine species but suggest common mechanisms driving diversity and endemism across systems. Compared with land species, threat levels are higher among marine mammals, driven by different processes (accidental mortality and pollution, rather than habitat loss), and are spatially distinct (peaking in northern oceans, rather than in Southeast Asia). Marine mammals are also disproportionately poorly known. These data are made freely available to support further scientific developments and conservation action.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schipper, Jan -- Chanson, Janice S -- Chiozza, Federica -- Cox, Neil A -- Hoffmann, Michael -- Katariya, Vineet -- Lamoreux, John -- Rodrigues, Ana S L -- Stuart, Simon N -- Temple, Helen J -- Baillie, Jonathan -- Boitani, Luigi -- Lacher, Thomas E Jr -- Mittermeier, Russell A -- Smith, Andrew T -- Absolon, Daniel -- Aguiar, John M -- Amori, Giovanni -- Bakkour, Noura -- Baldi, Ricardo -- Berridge, Richard J -- Bielby, Jon -- Black, Patricia Ann -- Blanc, J Julian -- Brooks, Thomas M -- Burton, James A -- Butynski, Thomas M -- Catullo, Gianluca -- Chapman, Roselle -- Cokeliss, Zoe -- Collen, Ben -- Conroy, Jim -- Cooke, Justin G -- da Fonseca, Gustavo A B -- Derocher, Andrew E -- Dublin, Holly T -- Duckworth, J W -- Emmons, Louise -- Emslie, Richard H -- Festa-Bianchet, Marco -- Foster, Matt -- Foster, Sabrina -- Garshelis, David L -- Gates, Cormack -- Gimenez-Dixon, Mariano -- Gonzalez, Susana -- Gonzalez-Maya, Jose Fernando -- Good, Tatjana C -- Hammerson, Geoffrey -- Hammond, Philip S -- Happold, David -- Happold, Meredith -- Hare, John -- Harris, Richard B -- Hawkins, Clare E -- Haywood, Mandy -- Heaney, Lawrence R -- Hedges, Simon -- Helgen, Kristofer M -- Hilton-Taylor, Craig -- Hussain, Syed Ainul -- Ishii, Nobuo -- Jefferson, Thomas A -- Jenkins, Richard K B -- Johnston, Charlotte H -- Keith, Mark -- Kingdon, Jonathan -- Knox, David H -- Kovacs, Kit M -- Langhammer, Penny -- Leus, Kristin -- Lewison, Rebecca -- Lichtenstein, Gabriela -- Lowry, Lloyd F -- Macavoy, Zoe -- Mace, Georgina M -- Mallon, David P -- Masi, Monica -- McKnight, Meghan W -- Medellin, Rodrigo A -- Medici, Patricia -- Mills, Gus -- Moehlman, Patricia D -- Molur, Sanjay -- Mora, Arturo -- Nowell, Kristin -- Oates, John F -- Olech, Wanda -- Oliver, William R L -- Oprea, Monik -- Patterson, Bruce D -- Perrin, William F -- Polidoro, Beth A -- Pollock, Caroline -- Powel, Abigail -- Protas, Yelizaveta -- Racey, Paul -- Ragle, Jim -- Ramani, Pavithra -- Rathbun, Galen -- Reeves, Randall R -- Reilly, Stephen B -- Reynolds, John E 3rd -- Rondinini, Carlo -- Rosell-Ambal, Ruth Grace -- Rulli, Monica -- Rylands, Anthony B -- Savini, Simona -- Schank, Cody J -- Sechrest, Wes -- Self-Sullivan, Caryn -- Shoemaker, Alan -- Sillero-Zubiri, Claudio -- De Silva, Naamal -- Smith, David E -- Srinivasulu, Chelmala -- Stephenson, Peter J -- van Strien, Nico -- Talukdar, Bibhab Kumar -- Taylor, Barbara L -- Timmins, Rob -- Tirira, Diego G -- Tognelli, Marcelo F -- Tsytsulina, Katerina -- Veiga, Liza M -- Vie, Jean-Christophe -- Williamson, Elizabeth A -- Wyatt, Sarah A -- Xie, Yan -- Young, Bruce E -- New York, N.Y. -- Science. 2008 Oct 10;322(5899):225-30. doi: 10.1126/science.1165115.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉International Union for Conservation of Nature (IUCN) Species Programme, IUCN, 28 Rue Mauverney, 1196 Gland, Switzerland. jan.schipper@iucn.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18845749" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; Body Size ; Conservation of Natural Resources ; Databases, Factual ; Ecosystem ; *Extinction, Biological ; *Mammals/anatomy & histology/classification/physiology ; Marine Biology ; Phylogeny ; Population Dynamics ; Seawater
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  • 33
    Publication Date: 2008-03-08
    Description: Chronic hyperglycemia contributes to the development of diabetes-associated complications. Increases in the concentration of circulating glucose activate the hexosamine biosynthetic pathway (HBP) and promote the O-glycosylation of proteins by O-glycosyl transferase (OGT). We show that OGT triggered hepatic gluconeogenesis through the O-glycosylation of the transducer of regulated cyclic adenosine monophosphate response element-binding protein (CREB) 2 (TORC2 or CRTC2). CRTC2 was O-glycosylated at sites that normally sequester CRTC2 in the cytoplasm through a phosphorylation-dependent mechanism. Decreasing amounts of O-glycosylated CRTC2 by expression of the deglycosylating enzyme O-GlcNAcase blocked effects of glucose on gluconeogenesis, demonstrating the importance of the HBP in the development of glucose intolerance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dentin, Renaud -- Hedrick, Susan -- Xie, Jianxin -- Yates, John 3rd -- Montminy, Marc -- R01 GM037828/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2008 Mar 7;319(5868):1402-5. doi: 10.1126/science.1151363.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18323454" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Substitution ; Animals ; Blood Glucose/metabolism ; Cell Nucleus/metabolism ; Cells, Cultured ; Cyclic AMP Response Element-Binding Protein/metabolism ; Cytoplasm/metabolism ; Diabetes Mellitus/metabolism ; *Gluconeogenesis ; Glucose/*metabolism ; Glycosylation ; Glycosyltransferases/metabolism ; Hepatocytes/metabolism ; Humans ; Insulin/metabolism ; Liver/*metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Phosphorylation ; RNA Interference ; Signal Transduction ; Trans-Activators/genetics/*metabolism ; Transcription Factors ; beta-N-Acetylhexosaminidases/metabolism
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  • 34
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-12-20
    Description: Nuclear reprogramming describes a switch in gene expression of one kind of cell to that of another unrelated cell type. Early studies in frog cloning provided some of the first experimental evidence for reprogramming. Subsequent procedures included mammalian somatic cell nuclear transfer, cell fusion, induction of pluripotency by ectopic gene expression, and direct reprogramming. Through these methods it becomes possible to derive one kind of specialized cell (such as a brain cell) from another, more accessible, tissue (such as skin) in the same individual. This has potential applications for cell replacement without the immunosuppression treatments that are required when cells are transferred between genetically different individuals. This article provides some background to this field, a discussion of mechanisms and efficiency, and comments on prospects for future nuclear reprogramming research.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gurdon, J B -- Melton, D A -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2008 Dec 19;322(5909):1811-5. doi: 10.1126/science.1160810.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wellcome Trust/Cancer Research UK Gurdon Institute and Department of Zoology, University of Cambridge, Cambridge CB2 12N, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19095934" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Dedifferentiation ; Cell Differentiation ; Cell Fusion ; Cell Lineage ; *Cellular Reprogramming ; Cloning, Organism ; DNA/metabolism ; DNA-Binding Proteins/metabolism ; Embryonic Stem Cells/cytology/physiology ; Female ; Gene Expression ; Humans ; Male ; Nuclear Transfer Techniques ; Oocytes/cytology ; Pluripotent Stem Cells/cytology/physiology ; Regulatory Sequences, Nucleic Acid ; Transcription Factors/genetics/metabolism
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  • 35
    Publication Date: 2008-04-12
    Description: The toxicity of ionizing radiation is associated with massive apoptosis in radiosensitive organs. Here, we investigate whether a drug that activates a signaling mechanism used by tumor cells to suppress apoptosis can protect healthy cells from the harmful effects of radiation. We studied CBLB502, a polypeptide drug derived from Salmonella flagellin that binds to Toll-like receptor 5 (TLR5) and activates nuclear factor-kappaB signaling. A single injection of CBLB502 before lethal total-body irradiation protected mice from both gastrointestinal and hematopoietic acute radiation syndromes and resulted in improved survival. CBLB502 injected after irradiation also enhanced survival, but at lower radiation doses. It is noteworthy that the drug did not decrease tumor radiosensitivity in mouse models. CBLB502 also showed radioprotective activity in lethally irradiated rhesus monkeys. Thus, TLR5 agonists could potentially improve the therapeutic index of cancer radiotherapy and serve as biological protectants in radiation emergencies.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4322935/" 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/PMC4322935/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Burdelya, Lyudmila G -- Krivokrysenko, Vadim I -- Tallant, Thomas C -- Strom, Evguenia -- Gleiberman, Anatoly S -- Gupta, Damodar -- Kurnasov, Oleg V -- Fort, Farrel L -- Osterman, Andrei L -- Didonato, Joseph A -- Feinstein, Elena -- Gudkov, Andrei V -- AI066497/AI/NIAID NIH HHS/ -- CA75179/CA/NCI NIH HHS/ -- CA84406/CA/NCI NIH HHS/ -- R01 CA084406/CA/NCI NIH HHS/ -- R01 CA084406-01A1/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2008 Apr 11;320(5873):226-30. doi: 10.1126/science.1154986.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Stress Biology, Roswell Park Cancer Institute, Buffalo, NY 14263, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18403709" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Apoptosis/drug effects/radiation effects ; Chemotherapy, Adjuvant ; Flagellin/chemistry/pharmacology ; Gamma Rays ; Hematopoietic System/drug effects/radiation effects ; Intestine, Small/cytology/drug effects/radiation effects ; Macaca mulatta ; Mice ; Mice, Inbred ICR ; Molecular Sequence Data ; NF-kappa B/*metabolism ; Neoplasms, Experimental/drug therapy/radiotherapy ; Peptides/administration & dosage/chemistry/*pharmacology/toxicity ; Radiation Dosage ; Radiation Injuries, Experimental/*prevention & control ; Radiation Tolerance/*drug effects ; Radiation-Protective Agents/administration & ; dosage/chemistry/*pharmacology/toxicity ; Salmonella enterica ; Signal Transduction ; Toll-Like Receptor 5/*agonists/metabolism ; Whole-Body Irradiation
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  • 36
    Publication Date: 2008-12-20
    Description: The repeated discovery of adult dinosaurs in close association with egg clutches leads to speculation over the type and extent of care exhibited by these extinct animals for their eggs and young. To assess parental care in Cretaceous troodontid and oviraptorid dinosaurs, we examined clutch volume and the bone histology of brooding adults. In comparison to four archosaur care regressions, the relatively large clutch volumes of Troodon, Oviraptor, and Citipati scale most closely with a bird-paternal care model. Clutch-associated adults lack the maternal and reproductively associated histologic features common to extant archosaurs. Large clutch volumes and a suite of reproductive features shared only with birds favor paternal care, possibly within a polygamous mating system. Paternal care in both troodontids and oviraptorids indicates that this care system evolved before the emergence of birds and represents birds' ancestral condition. In extant birds and over most adult sizes, paternal and biparental care correspond to the largest and smallest relative clutch volumes, respectively.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Varricchio, David J -- Moore, Jason R -- Erickson, Gregory M -- Norell, Mark A -- Jackson, Frankie D -- Borkowski, John J -- New York, N.Y. -- Science. 2008 Dec 19;322(5909):1826-8. doi: 10.1126/science.1163245.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Earth Sciences, Montana State University, Bozeman, MT 59717, USA. djv@montana.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19095938" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Behavior, Animal ; *Biological Evolution ; *Birds/physiology ; Bone and Bones/anatomy & histology ; Clutch Size ; *Dinosaurs/physiology ; Female ; *Fossils ; Male ; Maternal Behavior ; *Nesting Behavior ; Paternal Behavior ; Regression Analysis ; *Sexual Behavior, Animal
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  • 37
    Publication Date: 2008-03-08
    Description: We report that developmental competition between sympathetic neurons for survival is critically dependent on a sensitization process initiated by target innervation and mediated by a series of feedback loops. Target-derived nerve growth factor (NGF) promoted expression of its own receptor TrkA in mouse and rat neurons and prolonged TrkA-mediated signals. NGF also controlled expression of brain-derived neurotrophic factor and neurotrophin-4, which, through the receptor p75, can kill neighboring neurons with low retrograde NGF-TrkA signaling whereas neurons with high NGF-TrkA signaling are protected. Perturbation of any of these feedback loops disrupts the dynamics of competition. We suggest that three target-initiated events are essential for rapid and robust competition between neurons: sensitization, paracrine apoptotic signaling, and protection from such effects.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3612357/" 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/PMC3612357/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Deppmann, Christopher D -- Mihalas, Stefan -- Sharma, Nikhil -- Lonze, Bonnie E -- Niebur, Ernst -- Ginty, David D -- EY016281/EY/NEI NIH HHS/ -- F32 NS053187/NS/NINDS NIH HHS/ -- NS053187/NS/NINDS NIH HHS/ -- NS34814/NS/NINDS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2008 Apr 18;320(5874):369-73. doi: 10.1126/science.1152677. Epub 2008 Mar 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Solomon Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18323418" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Newborn ; Apoptosis ; Brain-Derived Neurotrophic Factor/metabolism ; Cell Survival ; Cells, Cultured ; Computer Simulation ; Feedback, Physiological ; Gene Expression Profiling ; *Gene Expression Regulation, Developmental ; Mathematics ; Mice ; *Models, Neurological ; Nerve Growth Factor/*metabolism ; Nerve Growth Factors/metabolism ; Neurons/cytology/*physiology ; Oligonucleotide Array Sequence Analysis ; Rats ; Receptor, trkA/genetics/*metabolism ; Receptors, Nerve Growth Factor/genetics/metabolism ; Signal Transduction ; Superior Cervical Ganglion/*cytology
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  • 38
    Publication Date: 2008-05-24
    Description: Taguchi et al. (Reports, 20 July 2007, p. 369) reported that mice heterozygous for a null mutation in insulin receptor substrate-2 (Irs2) display a 17% increase in median life span. However, using the same mouse model, we find no evidence for life-span extension and suggest that the findings of Taguchi et al. were due to atypical life-span profiles in their study animals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Selman, Colin -- Lingard, Steven -- Gems, David -- Partridge, Linda -- Withers, Dominic J -- New York, N.Y. -- Science. 2008 May 23;320(5879):1012; author reply 1012. doi: 10.1126/science.1152366.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Diabetes and Endocrinology, Department of Medicine, University College London, Rayne Institute, 5 University Street, London WC1E 6JJ, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18497277" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/*metabolism ; Crosses, Genetic ; Diet ; Female ; Homeostasis ; Insulin Receptor Substrate Proteins ; Intracellular Signaling Peptides and Proteins/genetics/*metabolism ; Kaplan-Meier Estimate ; *Longevity ; Male ; Mice ; Mice, Inbred C57BL ; Mutation ; Phosphoproteins/genetics/*metabolism ; Research Design ; Signal Transduction
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  • 39
    Publication Date: 2008-04-12
    Description: Cytidine deaminases of the APOBEC3 family all have specificity for single-stranded DNA, which may become exposed during replication or transcription of double-stranded DNA. Three human APOBEC3A (hA3A), hA3B, and hA3H genes are expressed in keratinocytes and skin, leading us to determine whether genetic editing of human papillomavirus (HPV) DNA occurred. In a study of HPV1a plantar warts and HPV16 precancerous cervical biopsies, hyperedited HPV1a and HPV16 genomes were found. Strictly analogous results were obtained from transfection experiments with HPV plasmid DNA and the three nuclear localized enzymes: hA3A, hA3C, and hA3H. Thus, stochastic or transient overexpression of APOBEC3 genes may expose the genome to a broad spectrum of mutations that could influence the development of tumors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vartanian, Jean-Pierre -- Guetard, Denise -- Henry, Michel -- Wain-Hobson, Simon -- New York, N.Y. -- Science. 2008 Apr 11;320(5873):230-3. doi: 10.1126/science.1153201.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Retrovirology Unit, Institut Pasteur, 28 Rue de Docteur Roux, 75724 Paris cedex 15, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18403710" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line ; Cervix Uteri/virology ; Cytidine/metabolism ; Cytosine Deaminase/*metabolism ; DNA Mismatch Repair ; DNA, Viral/genetics/*metabolism ; Female ; Genome, Viral ; Human papillomavirus 16/*genetics ; Humans ; Mupapillomavirus/*genetics ; Mutation ; Papillomavirus Infections/enzymology/virology ; Precancerous Conditions/enzymology/*virology ; Transfection ; Uterine Cervical Neoplasms/enzymology/*virology ; Warts/enzymology/*virology
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  • 40
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-09-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉De Lay, Paul R -- New York, N.Y. -- Science. 2008 Sep 19;321(5896):1631. doi: 10.1126/science.321.5896.1631a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18801980" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*prevention & control ; Disease Outbreaks/*prevention & control ; Endemic Diseases ; Female ; Humans ; Male ; Preventive Health Services/*economics
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  • 41
    Publication Date: 2008-11-08
    Description: The failure of axons to regenerate is a major obstacle for functional recovery after central nervous system (CNS) injury. Removing extracellular inhibitory molecules results in limited axon regeneration in vivo. To test for the role of intrinsic impediments to axon regrowth, we analyzed cell growth control genes using a virus-assisted in vivo conditional knockout approach. Deletion of PTEN (phosphatase and tensin homolog), a negative regulator of the mammalian target of rapamycin (mTOR) pathway, in adult retinal ganglion cells (RGCs) promotes robust axon regeneration after optic nerve injury. In wild-type adult mice, the mTOR activity was suppressed and new protein synthesis was impaired in axotomized RGCs, which may contribute to the regeneration failure. Reactivating this pathway by conditional knockout of tuberous sclerosis complex 1, another negative regulator of the mTOR pathway, also leads to axon regeneration. Thus, our results suggest the manipulation of intrinsic growth control pathways as a therapeutic approach to promote axon regeneration after CNS injury.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2652400/" 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/PMC2652400/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Park, Kevin Kyungsuk -- Liu, Kai -- Hu, Yang -- Smith, Patrice D -- Wang, Chen -- Cai, Bin -- Xu, Bengang -- Connolly, Lauren -- Kramvis, Ioannis -- Sahin, Mustafa -- He, Zhigang -- R01 NS051788/NS/NINDS NIH HHS/ -- R01 NS051788-04/NS/NINDS NIH HHS/ -- R01 NS058956/NS/NINDS NIH HHS/ -- R01 NS058956-02/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2008 Nov 7;322(5903):963-6. doi: 10.1126/science.1161566.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉F. M. Kirby Neurobiology Center, Children's Hospital, and Department of Neurology, 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/18988856" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/*physiology ; Axotomy ; Carrier Proteins/*metabolism ; Cell Survival ; Mice ; Mice, Knockout ; Nerve Crush ; *Nerve Regeneration ; Optic Nerve ; PTEN Phosphohydrolase/genetics/*metabolism ; Phosphotransferases (Alcohol Group Acceptor)/*metabolism ; Protein Biosynthesis ; Retinal Ganglion Cells/metabolism/physiology ; Ribosomal Protein S6/metabolism ; *Signal Transduction ; TOR Serine-Threonine Kinases ; Tumor Suppressor Proteins/genetics/metabolism
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  • 42
    Publication Date: 2008-09-06
    Description: Glioblastoma multiforme (GBM) is the most common and lethal type of brain cancer. To identify the genetic alterations in GBMs, we sequenced 20,661 protein coding genes, determined the presence of amplifications and deletions using high-density oligonucleotide arrays, and performed gene expression analyses using next-generation sequencing technologies in 22 human tumor samples. This comprehensive analysis led to the discovery of a variety of genes that were not known to be altered in GBMs. Most notably, we found recurrent mutations in the active site of isocitrate dehydrogenase 1 (IDH1) in 12% of GBM patients. Mutations in IDH1 occurred in a large fraction of young patients and in most patients with secondary GBMs and were associated with an increase in overall survival. These studies demonstrate the value of unbiased genomic analyses in the characterization of human brain cancer and identify a potentially useful genetic alteration for the classification and targeted therapy of GBMs.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2820389/" 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/PMC2820389/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Parsons, D Williams -- Jones, Sian -- Zhang, Xiaosong -- Lin, Jimmy Cheng-Ho -- Leary, Rebecca J -- Angenendt, Philipp -- Mankoo, Parminder -- Carter, Hannah -- Siu, I-Mei -- Gallia, Gary L -- Olivi, Alessandro -- McLendon, Roger -- Rasheed, B Ahmed -- Keir, Stephen -- Nikolskaya, Tatiana -- Nikolsky, Yuri -- Busam, Dana A -- Tekleab, Hanna -- Diaz, Luis A Jr -- Hartigan, James -- Smith, Doug R -- Strausberg, Robert L -- Marie, Suely Kazue Nagahashi -- Shinjo, Sueli Mieko Oba -- Yan, Hai -- Riggins, Gregory J -- Bigner, Darell D -- Karchin, Rachel -- Papadopoulos, Nick -- Parmigiani, Giovanni -- Vogelstein, Bert -- Velculescu, Victor E -- Kinzler, Kenneth W -- 5P50-NS-20023/NS/NINDS NIH HHS/ -- CA09547/CA/NCI NIH HHS/ -- CA108786/CA/NCI NIH HHS/ -- CA11898/CA/NCI NIH HHS/ -- CA121113/CA/NCI NIH HHS/ -- CA43460/CA/NCI NIH HHS/ -- CA57345/CA/NCI NIH HHS/ -- CA62924/CA/NCI NIH HHS/ -- NS052507/NS/NINDS NIH HHS/ -- P50 CA062924/CA/NCI NIH HHS/ -- P50 CA062924-160017/CA/NCI NIH HHS/ -- R01 CA121113/CA/NCI NIH HHS/ -- R01 CA121113-04/CA/NCI NIH HHS/ -- R01 CA140316/CA/NCI NIH HHS/ -- R37 CA043460/CA/NCI NIH HHS/ -- R37 CA043460-27/CA/NCI NIH HHS/ -- R37 CA057345/CA/NCI NIH HHS/ -- R37 CA057345-13/CA/NCI NIH HHS/ -- R37 CA057345-17/CA/NCI NIH HHS/ -- R37 CA057345-18/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2008 Sep 26;321(5897):1807-12. doi: 10.1126/science.1164382. Epub 2008 Sep 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Ludwig Center for Cancer Genetics and Therapeutics, and Howard Hughes Medical Institute at Johns Hopkins Kimmel Cancer Center, Baltimore, MD 21231, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18772396" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Brain Neoplasms/*genetics/mortality ; Female ; Gene Amplification ; Gene Dosage ; Gene Expression Profiling ; Gene Expression Regulation, Neoplastic ; Genome, Human ; Glioblastoma/*genetics/mortality ; Humans ; Isocitrate Dehydrogenase/chemistry/*genetics ; Male ; Middle Aged ; *Mutation ; Mutation, Missense ; Oligonucleotide Array Sequence Analysis ; Polymorphism, Single Nucleotide ; Sequence Analysis, DNA ; Signal Transduction ; Survival Rate
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  • 43
    Publication Date: 2008-04-12
    Description: The inhalation of airborne pollutants, such as asbestos or silica, is linked to inflammation of the lung, fibrosis, and lung cancer. How the presence of pathogenic dust is recognized and how chronic inflammatory diseases are triggered are poorly understood. Here, we show that asbestos and silica are sensed by the Nalp3 inflammasome, whose subsequent activation leads to interleukin-1beta secretion. Inflammasome activation is triggered by reactive oxygen species, which are generated by a NADPH oxidase upon particle phagocytosis. (NADPH is the reduced form of nicotinamide adenine dinucleotide phosphate.) In a model of asbestos inhalation, Nalp3-/- mice showed diminished recruitment of inflammatory cells to the lungs, paralleled by lower cytokine production. Our findings implicate the Nalp3 inflammasome in particulate matter-related pulmonary diseases and support its role as a major proinflammatory "danger" receptor.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2396588/" 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/PMC2396588/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dostert, Catherine -- Petrilli, Virginie -- Van Bruggen, Robin -- Steele, Chad -- Mossman, Brooke T -- Tschopp, Jurg -- P01 CA114047/CA/NCI NIH HHS/ -- P01 CA114047-01A10002/CA/NCI NIH HHS/ -- P01HL67004/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2008 May 2;320(5876):674-7. doi: 10.1126/science.1156995. Epub 2008 Apr 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of Lausanne, Chemin des Boveresses 155, 1066 Epalinges, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18403674" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Asbestos/*immunology ; Carrier Proteins/*physiology ; Humans ; Immunity ; Inflammation/*immunology ; Inflammation Mediators/*physiology ; Interleukin-1beta/secretion ; Macrophages/immunology/secretion ; Mice ; Silicon Dioxide/*immunology
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  • 44
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-06-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pain, Elisabeth -- New York, N.Y. -- Science. 2008 Jun 13;320(5882):1516. doi: 10.1126/science.320.5882.1516.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18556564" target="_blank"〉PubMed〈/a〉
    Keywords: *Career Choice ; Ecology ; *Ecosystem ; Female ; Humans ; *Plant Development ; *Research ; *Trees
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  • 45
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-11-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, Woo-Yang -- Snider, William D -- New York, N.Y. -- Science. 2008 Nov 7;322(5903):869-72. doi: 10.1126/science.1166152.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Neuroscience Center, School of Medicine, University of North Carolina, Chapel Hill, NC 27599, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18988832" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/*physiology ; Carrier Proteins/metabolism ; Cell Survival ; Central Nervous System/*cytology ; Cerebellum/cytology ; Genes, p53 ; Humans ; Membrane Glycoproteins/genetics/metabolism ; Mice ; Myelin Proteins/*metabolism ; Nerve Crush ; *Nerve Regeneration ; Neurons/*physiology ; PTEN Phosphohydrolase/genetics ; Phosphotransferases (Alcohol Group Acceptor)/metabolism ; Receptors, Immunologic/genetics/metabolism ; Retinal Ganglion Cells/cytology ; *Signal Transduction ; Spinal Cord Injuries/therapy ; TOR Serine-Threonine Kinases
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  • 46
    Publication Date: 2008-07-05
    Description: It has previously been thought that there was a steep Cretaceous and Cenozoic radiation of marine invertebrates. This pattern can be replicated with a new data set of fossil occurrences representing 3.5 million specimens, but only when older analytical protocols are used. Moreover, analyses that employ sampling standardization and more robust counting methods show a modest rise in diversity with no clear trend after the mid-Cretaceous. Globally, locally, and at both high and low latitudes, diversity was less than twice as high in the Neogene as in the mid-Paleozoic. The ratio of global to local richness has changed little, and a latitudinal diversity gradient was present in the early Paleozoic.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Alroy, John -- Aberhan, Martin -- Bottjer, David J -- Foote, Michael -- Fursich, Franz T -- Harries, Peter J -- Hendy, Austin J W -- Holland, Steven M -- Ivany, Linda C -- Kiessling, Wolfgang -- Kosnik, Matthew A -- Marshall, Charles R -- McGowan, Alistair J -- Miller, Arnold I -- Olszewski, Thomas D -- Patzkowsky, Mark E -- Peters, Shanan E -- Villier, Loic -- Wagner, Peter J -- Bonuso, Nicole -- Borkow, Philip S -- Brenneis, Benjamin -- Clapham, Matthew E -- Fall, Leigh M -- Ferguson, Chad A -- Hanson, Victoria L -- Krug, Andrew Z -- Layou, Karen M -- Leckey, Erin H -- Nurnberg, Sabine -- Powers, Catherine M -- Sessa, Jocelyn A -- Simpson, Carl -- Tomasovych, Adam -- Visaggi, Christy C -- New York, N.Y. -- Science. 2008 Jul 4;321(5885):97-100. doi: 10.1126/science.1156963.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Center for Ecological Analysis and Synthesis, University of California-Santa Barbara, 735 State Street, Santa Barbara, CA 93101, USA. alroy@nceas.ucsb.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18599780" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; Biological Evolution ; Databases, Factual ; Environment ; *Fossils ; Geography ; Geologic Sediments ; *Invertebrates/classification ; *Paleontology/methods ; Population Dynamics ; Sampling Studies ; Seawater ; Time Factors
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  • 47
    Publication Date: 2008-08-02
    Description: MyD88 is a key downstream adapter for most Toll-like receptors (TLRs) and interleukin-1 receptors (IL-1Rs). MyD88 deficiency in mice leads to susceptibility to a broad range of pathogens in experimental settings of infection. We describe a distinct situation in a natural setting of human infection. Nine children with autosomal recessive MyD88 deficiency suffered from life-threatening, often recurrent pyogenic bacterial infections, including invasive pneumococcal disease. However, these patients were otherwise healthy, with normal resistance to other microbes. Their clinical status improved with age, but not due to any cellular leakiness in MyD88 deficiency. The MyD88-dependent TLRs and IL-1Rs are therefore essential for protective immunity to a small number of pyogenic bacteria, but redundant for host defense to most natural infections.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2688396/" 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/PMC2688396/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉von Bernuth, Horst -- Picard, Capucine -- Jin, Zhongbo -- Pankla, Rungnapa -- Xiao, Hui -- Ku, Cheng-Lung -- Chrabieh, Maya -- Mustapha, Imen Ben -- Ghandil, Pegah -- Camcioglu, Yildiz -- Vasconcelos, Julia -- Sirvent, Nicolas -- Guedes, Margarida -- Vitor, Artur Bonito -- Herrero-Mata, Maria Jose -- Arostegui, Juan Ignacio -- Rodrigo, Carlos -- Alsina, Laia -- Ruiz-Ortiz, Estibaliz -- Juan, Manel -- Fortuny, Claudia -- Yague, Jordi -- Anton, Jordi -- Pascal, Mariona -- Chang, Huey-Hsuan -- Janniere, Lucile -- Rose, Yoann -- Garty, Ben-Zion -- Chapel, Helen -- Issekutz, Andrew -- Marodi, Laszlo -- Rodriguez-Gallego, Carlos -- Banchereau, Jacques -- Abel, Laurent -- Li, Xiaoxia -- Chaussabel, Damien -- Puel, Anne -- Casanova, Jean-Laurent -- U19 AI057234/AI/NIAID NIH HHS/ -- U19 AI057234-02/AI/NIAID NIH HHS/ -- U19 AIO57234-02/PHS HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2008 Aug 1;321(5889):691-6. doi: 10.1126/science.1158298.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Human Genetics of Infectious Diseases, INSERM U550, Paris, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18669862" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Animals ; Bacterial Infections/*genetics/*immunology ; Cell Line, Transformed ; Child ; Child, Preschool ; Cytokines/metabolism ; Disease Susceptibility ; Female ; Gene Deletion ; Humans ; Immunity, Innate ; Male ; Mice ; Mutation, Missense ; Myeloid Differentiation Factor 88/*deficiency/genetics/metabolism ; Pneumococcal Infections/genetics/immunology ; Pseudomonas Infections/genetics/immunology ; Receptors, Interleukin-1/immunology/metabolism ; Signal Transduction ; Staphylococcal Infections/genetics/immunology ; Toll-Like Receptors/immunology/metabolism ; Transfection
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  • 48
    Publication Date: 2008-02-09
    Description: Mouse CD4+CD8+ double-positive (DP) thymocytes differentiate into CD4+ helper-lineage cells upon expression of the transcription factor Th-POK but commit to the CD8+ cytotoxic lineage in its absence. We report the redirected differentiation of class I-restricted thymocytes into CD4+CD8- helper-like T cells upon loss of Runx transcription factor complexes. A Runx-binding sequence within the Th-POK locus acts as a transcriptional silencer that is essential for Th-POK repression and for development of CD8+ T cells. Thus, Th-POK expression and genetic programming for T helper cell development are actively inhibited by Runx-dependent silencer activity, allowing for cytotoxic T cell differentiation. Identification of the transcription factors network in CD4 and CD8 lineage choice provides insight into how distinct T cell subsets are developed for regulating the adaptive immune system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Setoguchi, Ruka -- Tachibana, Masashi -- Naoe, Yoshinori -- Muroi, Sawako -- Akiyama, Kaori -- Tezuka, Chieko -- Okuda, Tsukasa -- Taniuchi, Ichiro -- New York, N.Y. -- Science. 2008 Feb 8;319(5864):822-5. doi: 10.1126/science.1151844.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory for Transcriptional Regulation, RIKEN Research Center for Allergy and Immunology, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18258917" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Differentiation ; Cell Lineage ; Chromatin Immunoprecipitation ; Core Binding Factor Alpha 2 Subunit/genetics/*physiology ; Core Binding Factor Alpha 3 Subunit/genetics/*physiology ; Core Binding Factor beta Subunit/metabolism ; Histocompatibility Antigens Class I/immunology ; Histocompatibility Antigens Class II/immunology ; Mice ; Mice, Transgenic ; Molecular Sequence Data ; Silencer Elements, Transcriptional ; T-Lymphocyte Subsets/cytology/*immunology/metabolism ; T-Lymphocytes, Cytotoxic/cytology/*immunology/metabolism ; T-Lymphocytes, Helper-Inducer/cytology/immunology/metabolism ; Transcription Factors/genetics/*physiology
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  • 49
    Publication Date: 2008-08-09
    Description: To sustain or repair cooperation during a social exchange, adaptive creatures must understand social gestures and the consequences when shared expectations about fair exchange are violated by accident or intent. We recruited 55 individuals afflicted with borderline personality disorder (BPD) to play a multiround economic exchange game with healthy partners. Behaviorally, individuals with BPD showed a profound incapacity to maintain cooperation, and were impaired in their ability to repair broken cooperation on the basis of a quantitative measure of coaxing. Neurally, activity in the anterior insula, a region known to respond to norm violations across affective, interoceptive, economic, and social dimensions, strongly differentiated healthy participants from individuals with BPD. Healthy subjects showed a strong linear relation between anterior insula response and both magnitude of monetary offer received from their partner (input) and the amount of money repaid to their partner (output). In stark contrast, activity in the anterior insula of BPD participants was related only to the magnitude of repayment sent back to their partner (output), not to the magnitude of offers received (input). These neural and behavioral data suggest that norms used in perception of social gestures are pathologically perturbed or missing altogether among individuals with BPD. This game-theoretic approach to psychopathology may open doors to new ways of characterizing and studying a range of mental illnesses.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4105006/" 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/PMC4105006/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉King-Casas, Brooks -- Sharp, Carla -- Lomax-Bream, Laura -- Lohrenz, Terry -- Fonagy, Peter -- Montague, P Read -- DA11723/DA/NIDA NIH HHS/ -- F32 MH078485/MH/NIMH NIH HHS/ -- MH078485/MH/NIMH NIH HHS/ -- MH52797/MH/NIMH NIH HHS/ -- NS045790/NS/NINDS NIH HHS/ -- R01 DA011723/DA/NIDA NIH HHS/ -- R01 MH052797/MH/NIMH NIH HHS/ -- R01 NS045790/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2008 Aug 8;321(5890):806-10. doi: 10.1126/science.1156902.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Computational Psychiatry Unit and Department of Neuroscience, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX 77030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18687957" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Borderline Personality Disorder/*physiopathology/*psychology ; Cerebral Cortex/*physiopathology ; *Cooperative Behavior ; Female ; Frontal Lobe/physiopathology ; *Games, Experimental ; Humans ; Magnetic Resonance Imaging ; Male ; Parietal Lobe/physiopathology ; Social Behavior ; Trust/*psychology
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  • 50
    Publication Date: 2008-12-17
    Description: Dynein motors move various cargos along microtubules within the cytoplasm and power the beating of cilia and flagella. An unusual feature of dynein is that its microtubule-binding domain (MTBD) is separated from its ring-shaped AAA+ adenosine triphosphatase (ATPase) domain by a 15-nanometer coiled-coil stalk. We report the crystal structure of the mouse cytoplasmic dynein MTBD and a portion of the coiled coil, which supports a mechanism by which the ATPase domain and MTBD may communicate through a shift in the heptad registry of the coiled coil. Surprisingly, functional data suggest that the MTBD, and not the ATPase domain, is the main determinant of the direction of dynein motility.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2663340/" 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/PMC2663340/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carter, Andrew P -- Garbarino, Joan E -- Wilson-Kubalek, Elizabeth M -- Shipley, Wesley E -- Cho, Carol -- Milligan, Ronald A -- Vale, Ronald D -- Gibbons, I R -- GM30401-29/GM/NIGMS NIH HHS/ -- GM52468/GM/NIGMS NIH HHS/ -- P01 AR042895/AR/NIAMS NIH HHS/ -- P01 AR042895-15/AR/NIAMS NIH HHS/ -- P01-AR42895/AR/NIAMS NIH HHS/ -- P41 RR-17573/RR/NCRR NIH HHS/ -- R01 GM097312/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2008 Dec 12;322(5908):1691-5. doi: 10.1126/science.1164424.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Department of Cellular and Molecular Pharmacology, University of California, San Francisco, CA 94158, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19074350" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/metabolism ; Amino Acid Sequence ; Animals ; Binding Sites ; Crystallization ; Crystallography, X-Ray ; Dimerization ; Dyneins/*chemistry/*metabolism ; Hydrophobic and Hydrophilic Interactions ; Image Processing, Computer-Assisted ; Mice ; Microscopy, Electron ; Microtubules/*metabolism/ultrastructure ; Models, Molecular ; Molecular Sequence Data ; Movement ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Recombinant Fusion Proteins/chemistry/metabolism
    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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  • 51
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-05-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Campbell, Martha -- Potts, Malcolm -- New York, N.Y. -- Science. 2008 May 16;320(5878):873-4; author reply 873-4. doi: 10.1126/science.320.5878.873.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18487173" target="_blank"〉PubMed〈/a〉
    Keywords: *Birth Rate ; *Contraception ; Ethiopia ; Female ; *Health Services Accessibility ; Humans ; Rural Population ; Urban Population
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  • 52
    Publication Date: 2008-01-19
    Description: The earliest step in creating the cerebral cortex is the specification of neuroepithelium to a cortical fate. Using mouse genetic mosaics and timed inactivations, we demonstrated that Lhx2 acts as a classic selector gene and essential intrinsic determinant of cortical identity. Lhx2 selector activity is restricted to an early critical period when stem cells comprise the cortical neuroepithelium, where it acts cell-autonomously to specify cortical identity and suppress alternative fates in a spatially dependent manner. Laterally, Lhx2 null cells adopt antihem identity, whereas medially they become cortical hem cells, which can induce and organize ectopic hippocampal fields. In addition to providing functional evidence for Lhx2 selector activity, these findings show that the cortical hem is a hippocampal organizer.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2494603/" 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/PMC2494603/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mangale, Vishakha S -- Hirokawa, Karla E -- Satyaki, Prasad R V -- Gokulchandran, Nandini -- Chikbire, Satyadeep -- Subramanian, Lakshmi -- Shetty, Ashwin S -- Martynoga, Ben -- Paul, Jolly -- Mai, Mark V -- Li, Yuqing -- Flanagan, Lisa A -- Tole, Shubha -- Monuki, Edwin S -- 056684/Z/99/Z/Wellcome Trust/United Kingdom -- AG23583/AG/NIA NIH HHS/ -- MH02029/MH/NIMH NIH HHS/ -- NS053511/NS/NINDS NIH HHS/ -- NS07444/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2008 Jan 18;319(5861):304-9. doi: 10.1126/science.1151695.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, Tata Institute of Fundamental Research, Mumbai 400005, India.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18202285" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Aggregation ; Cerebral Cortex/cytology/*embryology/metabolism ; Chimera ; Dentate Gyrus/cytology/embryology/metabolism ; Embryonic Induction ; Embryonic Stem Cells/metabolism ; Epithelium/embryology/metabolism ; Gene Expression Regulation, Developmental ; Hippocampus/cytology/*embryology ; Homeodomain Proteins/*genetics/*metabolism ; LIM-Homeodomain Proteins ; Mice ; Mice, Knockout ; Mutation ; Neuroepithelial Cells/cytology/metabolism ; Organizers, Embryonic/embryology/*physiology ; Prosencephalon/embryology/metabolism ; Pyramidal Cells/cytology/embryology ; Recombination, Genetic ; Telencephalon/cytology/embryology ; Transcription Factors/*genetics/*metabolism
    Print ISSN: 0036-8075
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  • 53
    Publication Date: 2008-09-06
    Description: The canonical Wnt-beta-catenin signaling pathway is initiated by inducing phosphorylation of one of the Wnt receptors, low-density lipoprotein receptor-related protein 6 (LRP6), at threonine residue 1479 (Thr1479) and serine residue 1490 (Ser1490). By screening a human kinase small interfering RNA library, we identified phosphatidylinositol 4-kinase type II alpha and phosphatidylinositol-4-phosphate 5-kinase type I (PIP5KI) as required for Wnt3a-induced LRP6 phosphorylation at Ser1490 in mammalian cells and confirmed that these kinases are important for Wnt signaling in Xenopus embryos. Wnt3a stimulates the formation of phosphatidylinositol 4,5-bisphosphates [PtdIns (4,5)P2] through frizzled and dishevelled, the latter of which directly interacted with and activated PIP5KI. In turn, PtdIns (4,5)P2 regulated phosphorylation of LRP6 at Thr1479 and Ser1490. Therefore, our study reveals a signaling mechanism for Wnt to regulate LRP6 phosphorylation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2532521/" 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/PMC2532521/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pan, Weijun -- Choi, Sun-Cheol -- Wang, He -- Qin, Yuanbo -- Volpicelli-Daley, Laura -- Swan, Laura -- Lucast, Louise -- Khoo, Cynthia -- Zhang, Xiaowu -- Li, Lin -- Abrams, Charles S -- Sokol, Sergei Y -- Wu, Dianqing -- AR051476/AR/NIAMS NIH HHS/ -- CA132317/CA/NCI NIH HHS/ -- DA018343/DA/NIDA NIH HHS/ -- HL080706/HL/NHLBI NIH HHS/ -- NS36251/NS/NINDS NIH HHS/ -- P30 DA018343/DA/NIDA NIH HHS/ -- R01 AR051476/AR/NIAMS NIH HHS/ -- R01 AR051476-01A1/AR/NIAMS NIH HHS/ -- R01 AR051476-02/AR/NIAMS NIH HHS/ -- R01 AR051476-03/AR/NIAMS NIH HHS/ -- R01 CA132317/CA/NCI NIH HHS/ -- R01 CA132317-01A2/CA/NCI NIH HHS/ -- R01 CA139395/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2008 Sep 5;321(5894):1350-3. doi: 10.1126/science.1160741.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, Yale University School of Medicine, New Haven, CT 06510, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18772438" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing/metabolism ; Animals ; Axin Protein ; Cell Line ; Frizzled Receptors/metabolism ; Humans ; LDL-Receptor Related Proteins/*metabolism ; Low Density Lipoprotein Receptor-Related Protein-6 ; Mice ; Models, Biological ; Phosphatidylinositol 4,5-Diphosphate/*metabolism ; Phosphoproteins/metabolism ; Phosphorylation ; Phosphotransferases (Alcohol Group Acceptor)/metabolism ; RNA, Small Interfering ; Recombinant Proteins/metabolism ; Repressor Proteins/metabolism ; Serine/metabolism ; Signal Transduction ; Threonine/metabolism ; Wnt Proteins/*metabolism ; Wnt3 Protein ; Wnt3A Protein ; Xenopus/embryology ; Xenopus Proteins
    Print ISSN: 0036-8075
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  • 54
    Publication Date: 2008-01-19
    Description: Dynein and kinesin motor proteins transport cellular cargoes toward opposite ends of microtubule tracks. In neurons, microtubules are abundantly decorated with microtubule-associated proteins (MAPs) such as tau. Motor proteins thus encounter MAPs frequently along their path. To determine the effects of tau on dynein and kinesin motility, we conducted single-molecule studies of motor proteins moving along tau-decorated microtubules. Dynein tended to reverse direction, whereas kinesin tended to detach at patches of bound tau. Kinesin was inhibited at about a tenth of the tau concentration that inhibited dynein, and the microtubule-binding domain of tau was sufficient to inhibit motor activity. The differential modulation of dynein and kinesin motility suggests that MAPs can spatially regulate the balance of microtubule-dependent axonal transport.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2866193/" 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/PMC2866193/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dixit, Ram -- Ross, Jennifer L -- Goldman, Yale E -- Holzbaur, Erika L F -- GM-48661/GM/NIGMS NIH HHS/ -- P01 AR051174/AR/NIAMS NIH HHS/ -- P01 AR051174-050002/AR/NIAMS NIH HHS/ -- P01-AR-051174/AR/NIAMS NIH HHS/ -- R01 GM048661/GM/NIGMS NIH HHS/ -- R01 GM048661-16/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2008 Feb 22;319(5866):1086-9. doi: 10.1126/science.1152993. Epub 2008 Jan 17.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology and Pennsylvania Muscle Institute, University of Pennsylvania, Philadelphia, PA 19104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18202255" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/metabolism ; Animals ; Axonal Transport ; Dyneins/chemistry/*metabolism ; Kinesin/chemistry/*metabolism ; Mice ; Mice, Transgenic ; Microscopy, Fluorescence ; Microtubules/*metabolism ; Models, Neurological ; Neurons/metabolism/physiology ; Protein Binding ; Protein Isoforms/metabolism ; Recombinant Fusion Proteins/metabolism ; tau Proteins/chemistry/*metabolism
    Print ISSN: 0036-8075
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  • 55
    Publication Date: 2008-04-26
    Description: The mammalian vomeronasal organ detects complex chemical signals that convey information about gender, strain, and the social and reproductive status of an individual. How these signals are encoded is poorly understood. We developed transgenic mice expressing the calcium indicator G-CaMP2 and analyzed population responses of vomeronasal neurons to urine from individual animals. A substantial portion of cells was activated by either male or female urine, but only a small population of cells responded exclusively to gender-specific cues shared across strains and individuals. Female cues activated more cells and were subject to more complex hormonal regulations than male cues. In contrast to gender, strain and individual information was encoded by the combinatorial activation of neurons such that urine from different individuals activated distinctive cell populations.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2602951/" 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/PMC2602951/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉He, Jie -- Ma, Limei -- Kim, Sangseong -- Nakai, Junichi -- Yu, C Ron -- NIDCD 008003/PHS HHS/ -- R01 DC008003/DC/NIDCD NIH HHS/ -- R01 DC008003-03/DC/NIDCD NIH HHS/ -- New York, N.Y. -- Science. 2008 Apr 25;320(5875):535-8. doi: 10.1126/science.1154476.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Stowers Institute for Medical Research, 1000 East 50th Street, Kansas City, MO 64110, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18436787" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Behavior, Animal ; Calcium/metabolism ; Cluster Analysis ; Cues ; Female ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Inbred CBA ; Neurons, Afferent/*physiology ; *Pheromones ; Principal Component Analysis ; Receptors, Pheromone/physiology ; Sex Characteristics ; *Urine/chemistry ; Vomeronasal Organ/cytology/*physiology
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  • 56
    Publication Date: 2008-05-03
    Description: Hepcidin, a liver-derived protein that restricts enteric iron absorption, is the key regulator of body iron content. Several proteins induce expression of the hepcidin-encoding gene Hamp in response to infection or high levels of iron. However, mechanism(s) of Hamp suppression during iron depletion are poorly understood. We describe mask: a recessive, chemically induced mutant mouse phenotype, characterized by progressive loss of body (but not facial) hair and microcytic anemia. The mask phenotype results from reduced absorption of dietary iron caused by high levels of hepcidin and is due to a splicing defect in the transmembrane serine protease 6 gene Tmprss6. Overexpression of normal TMPRSS6 protein suppresses activation of the Hamp promoter, and the TMPRSS6 cytoplasmic domain mediates Hamp suppression via proximal promoter element(s). TMPRSS6 is an essential component of a pathway that detects iron deficiency and blocks Hamp transcription, permitting enhanced dietary iron absorption.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2430097/" 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/PMC2430097/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Du, Xin -- She, Ellen -- Gelbart, Terri -- Truksa, Jaroslav -- Lee, Pauline -- Xia, Yu -- Khovananth, Kevin -- Mudd, Suzanne -- Mann, Navjiwan -- Moresco, Eva Marie Y -- Beutler, Ernest -- Beutler, Bruce -- AI054523/AI/NIAID NIH HHS/ -- DK53505-09/DK/NIDDK NIH HHS/ -- R01 DK053505-09/DK/NIDDK NIH HHS/ -- U54 AI054523/AI/NIAID NIH HHS/ -- U54 AI054523-019005/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2008 May 23;320(5879):1088-92. doi: 10.1126/science.1157121. Epub 2008 May 1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18451267" target="_blank"〉PubMed〈/a〉
    Keywords: Anemia, Macrocytic/genetics/metabolism ; Animals ; Antimicrobial Cationic Peptides/*genetics/metabolism ; Cell Line, Tumor ; Gene Expression Regulation ; Hepcidins ; Humans ; Iron/blood/*deficiency/metabolism ; Membrane Proteins/chemistry/genetics/*metabolism ; Mice ; Mice, Mutant Strains ; Mice, Transgenic ; Models, Biological ; Mutation ; Phenotype ; Promoter Regions, Genetic ; Protein Structure, Tertiary ; Serine Endopeptidases/chemistry/genetics/*metabolism ; Signal Transduction ; Transfection
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  • 57
    Publication Date: 2008-08-09
    Description: At synapses between cortical pyramidal neurons and principal striatal medium spiny neurons (MSNs), postsynaptic D1 and D2 dopamine (DA) receptors are postulated to be necessary for the induction of long-term potentiation and depression, respectively-forms of plasticity thought to underlie associative learning. Because these receptors are restricted to two distinct MSN populations, this postulate demands that synaptic plasticity be unidirectional in each cell type. Using brain slices from DA receptor transgenic mice, we show that this is not the case. Rather, DA plays complementary roles in these two types of MSN to ensure that synaptic plasticity is bidirectional and Hebbian. In models of Parkinson's disease, this system is thrown out of balance, leading to unidirectional changes in plasticity that could underlie network pathology and symptoms.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2833421/" 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/PMC2833421/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shen, Weixing -- Flajolet, Marc -- Greengard, Paul -- Surmeier, D James -- DA10044/DA/NIDA NIH HHS/ -- MH074866/MH/NIMH NIH HHS/ -- NS 34696/NS/NINDS NIH HHS/ -- P50 MH074866/MH/NIMH NIH HHS/ -- P50 MH074866-05/MH/NIMH NIH HHS/ -- R01 NS034696/NS/NINDS NIH HHS/ -- R01 NS034696-06/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2008 Aug 8;321(5890):848-51. doi: 10.1126/science.1160575.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18687967" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cannabinoid Receptor Modulators/metabolism ; Corpus Striatum/cytology/*physiology ; Dopamine/*physiology ; Glutamic Acid/metabolism ; *Long-Term Potentiation ; *Long-Term Synaptic Depression ; Mice ; Mice, Transgenic ; Neurons/*physiology ; Parkinsonian Disorders/*physiopathology ; Receptors, Dopamine D1/metabolism ; Receptors, Dopamine D2/metabolism ; Signal Transduction ; Synapses/*physiology
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  • 58
    Publication Date: 2008-09-13
    Description: Halpern et al. (Reports, 15 February 2008, p. 948) integrated spatial data on 17 drivers of change in the oceans to map the global distribution of human impact. Although fishery catches are a dominant driver, the data reflect activity while impacts occur at different space and time scales. Failure to account for this spatial disconnection could lead to potentially misleading conclusions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Heath, Michael R -- New York, N.Y. -- Science. 2008 Sep 12;321(5895):1446; author reply 1446. doi: 10.1126/science.1157390.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Fisheries Research Services, Marine Laboratory, 375 Victoria Road, Aberdeen AB11 9DB, UK. heathmr@marlab.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18787153" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Ecosystem ; *Fisheries ; *Fishes ; Food Chain ; *Human Activities ; Humans ; Oceans and Seas ; Population Dynamics
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  • 59
    Publication Date: 2008-03-29
    Description: Schizophrenia is a devastating neurodevelopmental disorder whose genetic influences remain elusive. We hypothesize that individually rare structural variants contribute to the illness. Microdeletions and microduplications 〉100 kilobases were identified by microarray comparative genomic hybridization of genomic DNA from 150 individuals with schizophrenia and 268 ancestry-matched controls. All variants were validated by high-resolution platforms. Novel deletions and duplications of genes were present in 5% of controls versus 15% of cases and 20% of young-onset cases, both highly significant differences. The association was independently replicated in patients with childhood-onset schizophrenia as compared with their parents. Mutations in cases disrupted genes disproportionately from signaling networks controlling neurodevelopment, including neuregulin and glutamate pathways. These results suggest that multiple, individually rare mutations altering genes in neurodevelopmental pathways contribute to schizophrenia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Walsh, Tom -- McClellan, Jon M -- McCarthy, Shane E -- Addington, Anjene M -- Pierce, Sarah B -- Cooper, Greg M -- Nord, Alex S -- Kusenda, Mary -- Malhotra, Dheeraj -- Bhandari, Abhishek -- Stray, Sunday M -- Rippey, Caitlin F -- Roccanova, Patricia -- Makarov, Vlad -- Lakshmi, B -- Findling, Robert L -- Sikich, Linmarie -- Stromberg, Thomas -- Merriman, Barry -- Gogtay, Nitin -- Butler, Philip -- Eckstrand, Kristen -- Noory, Laila -- Gochman, Peter -- Long, Robert -- Chen, Zugen -- Davis, Sean -- Baker, Carl -- Eichler, Evan E -- Meltzer, Paul S -- Nelson, Stanley F -- Singleton, Andrew B -- Lee, Ming K -- Rapoport, Judith L -- King, Mary-Claire -- Sebat, Jonathan -- HD043569/HD/NICHD NIH HHS/ -- M01 RR000046/RR/NCRR NIH HHS/ -- MH061355/MH/NIMH NIH HHS/ -- MH061464/MH/NIMH NIH HHS/ -- MH061528/MH/NIMH NIH HHS/ -- NS052108/NS/NINDS NIH HHS/ -- R01 HD043569/HD/NICHD NIH HHS/ -- RR000046/RR/NCRR NIH HHS/ -- RR025014/RR/NCRR NIH HHS/ -- U01 MH061355/MH/NIMH NIH HHS/ -- U01 MH061464/MH/NIMH NIH HHS/ -- U01 MH061528/MH/NIMH NIH HHS/ -- U24 NS052108/NS/NINDS NIH HHS/ -- UL1 RR025014/RR/NCRR NIH HHS/ -- Howard Hughes Medical Institute/ -- Intramural NIH HHS/ -- New York, N.Y. -- Science. 2008 Apr 25;320(5875):539-43. doi: 10.1126/science.1155174. Epub 2008 Mar 27.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of Washington, Seattle, WA 98195, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18369103" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Age of Onset ; Amino Acid Sequence ; Brain/cytology/*growth & development/metabolism ; Case-Control Studies ; Child ; Excitatory Amino Acid Transporter 1/chemistry/genetics/physiology ; Female ; *Gene Deletion ; *Gene Duplication ; Genetic Predisposition to Disease ; Genome, Human ; Humans ; Male ; Molecular Sequence Data ; *Mutation ; Neurons/cytology/physiology ; Oligonucleotide Array Sequence Analysis ; Polymorphism, Single Nucleotide ; Receptor, Epidermal Growth Factor/chemistry/genetics/physiology ; Receptor, ErbB-4 ; Schizophrenia/*genetics/physiopathology ; Signal Transduction
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  • 60
    Publication Date: 2008-05-20
    Description: Becker et al. (Reports, 14 December 2007, p. 1775) reported that forest amphibians with terrestrial development are less susceptible to the effects of habitat degradation than those with aquatic larvae. However, analysis with more appropriate statistical methods suggests there is no evidence for a difference between aquatic-reproducing and terrestrial-reproducing species.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cannatella, David C -- New York, N.Y. -- Science. 2008 May 16;320(5878):874; author reply 874. doi: 10.1126/science.1155114.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Integrative Biology, University of Texas, Austin, TX 78712, USA. catfish@mail.utexas.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18487175" target="_blank"〉PubMed〈/a〉
    Keywords: *Amphibians/physiology ; Animals ; *Anura/physiology ; Biodiversity ; Brazil ; *Ecosystem ; Larva ; Population Dynamics ; Regression Analysis ; Reproduction ; Statistics as Topic ; Trees ; Water
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  • 61
    Publication Date: 2008-07-19
    Description: Sleep is an essential process conserved from flies to humans. The importance of sleep is underscored by its tight homeostatic control. Through a forward genetic screen, we identified a gene, sleepless, required for sleep in Drosophila. The sleepless gene encodes a brain-enriched, glycosylphosphatidylinositol-anchored protein. Loss of SLEEPLESS protein caused an extreme (〉80%) reduction in sleep; a moderate reduction in SLEEPLESS had minimal effects on baseline sleep but markedly reduced the amount of recovery sleep after sleep deprivation. Genetic and molecular analyses revealed that quiver, a mutation that impairs Shaker-dependent potassium current, is an allele of sleepless. Consistent with this finding, Shaker protein levels were reduced in sleepless mutants. We propose that SLEEPLESS is a signaling molecule that connects sleep drive to lowered membrane excitability.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2771549/" 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/PMC2771549/" 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 -- Joiner, William J -- Wu, Mark N -- Yue, Zhifeng -- Smith, Corinne J -- Sehgal, Amita -- AG017628/AG/NIA NIH HHS/ -- P01 AG017628/AG/NIA NIH HHS/ -- P01 AG017628-070004/AG/NIA NIH HHS/ -- R01 NS072431/NS/NINDS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2008 Jul 18;321(5887):372-6. doi: 10.1126/science.1155942.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Neuroscience, University of Pennsylvania, Philadelphia, PA 19104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18635795" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Animals, Genetically Modified ; Behavior, Animal ; Brain/metabolism ; Cell Membrane/metabolism ; DNA Transposable Elements ; Drosophila Proteins/chemistry/*genetics/*physiology ; Drosophila melanogaster/genetics/*physiology ; Female ; *Genes, Insect ; Glycosylphosphatidylinositols ; Homeostasis ; Longevity ; Male ; Membrane Proteins/chemistry/*genetics/*physiology ; *Models, Animal ; Molecular Sequence Data ; Mutation ; Phenotype ; Shaker Superfamily of Potassium Channels/physiology ; Signal Transduction ; *Sleep/genetics/physiology ; Sleep Deprivation ; Transgenes
    Print ISSN: 0036-8075
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  • 62
    Publication Date: 2008-03-01
    Description: Amyotrophic lateral sclerosis (ALS) is a fatal motor neuron disorder characterized pathologically by ubiquitinated TAR DNA binding protein (TDP-43) inclusions. The function of TDP-43 in the nervous system is uncertain, and a mechanistic role in neurodegeneration remains speculative. We identified neighboring mutations in a highly conserved region of TARDBP in sporadic and familial ALS cases. TARDBPM337V segregated with disease within one kindred and a genome-wide scan confirmed that linkage was restricted to chromosome 1p36, which contains the TARDBP locus. Mutant forms of TDP-43 fragmented in vitro more readily than wild type and, in vivo, caused neural apoptosis and developmental delay in the chick embryo. Our evidence suggests a pathophysiological link between TDP-43 and ALS.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sreedharan, Jemeen -- Blair, Ian P -- Tripathi, Vineeta B -- Hu, Xun -- Vance, Caroline -- Rogelj, Boris -- Ackerley, Steven -- Durnall, Jennifer C -- Williams, Kelly L -- Buratti, Emanuele -- Baralle, Francisco -- de Belleroche, Jacqueline -- Mitchell, J Douglas -- Leigh, P Nigel -- Al-Chalabi, Ammar -- Miller, Christopher C -- Nicholson, Garth -- Shaw, Christopher E -- G0500289/Medical Research Council/United Kingdom -- G0501573/Medical Research Council/United Kingdom -- G0600974/Medical Research Council/United Kingdom -- Medical Research Council/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2008 Mar 21;319(5870):1668-72. doi: 10.1126/science.1154584. Epub 2008 Feb 28.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Clinical Neuroscience, King's College London, Medical Research Council (MRC) Centre for Neurodegeneration Research, and Institute of Psychiatry, London, SE5 8AF, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18309045" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Amino Acid Sequence ; Amino Acid Substitution ; Amyotrophic Lateral Sclerosis/*genetics ; Animals ; Apoptosis ; CHO Cells ; Chick Embryo ; Chromosomes, Human, Pair 1/genetics ; Cricetinae ; Cricetulus ; DNA-Binding Proteins/chemistry/*genetics/physiology ; Embryonic Development ; Female ; Humans ; Male ; Microsatellite Repeats ; Middle Aged ; Molecular Sequence Data ; Mutant Proteins/chemistry/physiology ; *Mutation, Missense ; Neurons/cytology/physiology
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  • 63
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-10-25
    Description: "Warmth" is the most powerful personality trait in social judgment, and attachment theorists have stressed the importance of warm physical contact with caregivers during infancy for healthy relationships in adulthood. Intriguingly, recent research in humans points to the involvement of the insula in the processing of both physical temperature and interpersonal warmth (trust) information. Accordingly, we hypothesized that experiences of physical warmth (or coldness) would increase feelings of interpersonal warmth (or coldness), without the person's awareness of this influence. In study 1, participants who briefly held a cup of hot (versus iced) coffee judged a target person as having a "warmer" personality (generous, caring); in study 2, participants holding a hot (versus cold) therapeutic pad were more likely to choose a gift for a friend instead of for themselves.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2737341/" 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/PMC2737341/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Williams, Lawrence E -- Bargh, John A -- MH-R01-60767/MH/NIMH NIH HHS/ -- R01 MH060767-09/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2008 Oct 24;322(5901):606-7. doi: 10.1126/science.1162548.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Leeds School of Business, University of Colorado at Boulder, UCB 419, Boulder, CO, 80309-0419, USA. lawrence.williams@colorado.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18948544" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Cerebral Cortex/physiology ; Cold Temperature ; Emotions ; Female ; Hot Temperature ; Humans ; *Interpersonal Relations ; Judgment ; Male ; Personality ; Social Behavior ; *Social Perception ; *Thermosensing ; *Trust
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  • 64
    Publication Date: 2008-08-30
    Description: The acquisition of metastatic ability by tumor cells is considered a late event in the evolution of malignant tumors. We report that untransformed mouse mammary cells that have been engineered to express the inducible oncogenic transgenes MYC and Kras(D12), or polyoma middle T, and introduced into the systemic circulation of a mouse can bypass transformation at the primary site and develop into metastatic pulmonary lesions upon immediate or delayed oncogene induction. Therefore, previously untransformed mammary cells may establish residence in the lung once they have entered the bloodstream and may assume malignant growth upon oncogene activation. Mammary cells lacking oncogenic transgenes displayed a similar capacity for long-term residence in the lungs but did not form ectopic tumors.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2694414/" 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/PMC2694414/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Podsypanina, Katrina -- Du, Yi-Chieh Nancy -- Jechlinger, Martin -- Beverly, Levi J -- Hambardzumyan, Dolores -- Varmus, Harold -- K01 CA118731/CA/NCI NIH HHS/ -- K01 CA118731-03/CA/NCI NIH HHS/ -- P01 CA94060/CA/NCI NIH HHS/ -- P30-CA 08748/CA/NCI NIH HHS/ -- R24 CA83084/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2008 Sep 26;321(5897):1841-4. doi: 10.1126/science.1161621. Epub 2008 Aug 28.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Program in Cancer Biology and Genetics, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA. podsypak@mskcc.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18755941" target="_blank"〉PubMed〈/a〉
    Keywords: Adenocarcinoma/pathology/secondary ; Animals ; Antigens, Polyomavirus Transforming/genetics ; Cell Proliferation ; Cell Survival ; Cell Transformation, Neoplastic ; Epithelial Cells/*cytology ; Gene Expression Regulation, Neoplastic ; Genes, myc ; Genes, ras ; Lung Neoplasms/pathology/*secondary ; Mammary Glands, Animal/*cytology ; Mammary Neoplasms, Experimental/pathology ; Mice ; Mice, Transgenic ; *Neoplasm Metastasis ; *Neoplasm Seeding ; Neoplastic Cells, Circulating ; *Oncogenes ; Transgenes
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  • 65
    Publication Date: 2008-04-05
    Description: Exclosure experiments have demonstrated the effects of bird predation on arthropods. In a Mexican coffee plantation, we excluded foliage-gleaning bird and bat predators from coffee plants. Effects of bats and birds were additive. In the dry season, birds reduced arthropods in coffee plants by 30%; birds and bats together reduced arthropods by 46%. In the wet season, bats reduced arthropods by 84%, whereas birds reduced them by only 58%. We conclude that previous "bird" exclosure experiments may have systematically underestimated the effects of bats.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Williams-Guillen, Kimberly -- Perfecto, Ivette -- Vandermeer, John -- New York, N.Y. -- Science. 2008 Apr 4;320(5872):70. doi: 10.1126/science.1152944.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Natural Resources and Environment, University of Michigan, Ann Arbor, MI 48109, USA. kimwg@umich.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18388285" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arthropods ; *Birds ; *Chiroptera/physiology ; *Climate ; *Coffea ; *Ecosystem ; Insects ; Mexico ; Population Dynamics ; Predatory Behavior ; Reproduction ; Seasons
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  • 66
    Publication Date: 2008-09-27
    Description: Pluripotent stem cells have been generated from mouse and human somatic cells by viral expression of the transcription factors Oct4, Sox2, Klf4, and c-Myc. A major limitation of this technology is the use of potentially harmful genome-integrating viruses. We generated mouse induced pluripotent stem (iPS) cells from fibroblasts and liver cells by using nonintegrating adenoviruses transiently expressing Oct4, Sox2, Klf4, and c-Myc. These adenoviral iPS (adeno-iPS) cells show DNA demethylation characteristic of reprogrammed cells, express endogenous pluripotency genes, form teratomas, and contribute to multiple tissues, including the germ line, in chimeric mice. Our results provide strong evidence that insertional mutagenesis is not required for in vitro reprogramming. Adenoviral reprogramming may provide an improved method for generating and studying patient-specific stem cells and for comparing embryonic stem cells and iPS cells.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3987909/" 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/PMC3987909/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stadtfeld, Matthias -- Nagaya, Masaki -- Utikal, Jochen -- Weir, Gordon -- Hochedlinger, Konrad -- DP2 OD003266/OD/NIH HHS/ -- New York, N.Y. -- Science. 2008 Nov 7;322(5903):945-9. doi: 10.1126/science.1162494. Epub 2008 Sep 25.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Massachusetts General Hospital Cancer Center and Center for Regenerative Medicine, 185 Cambridge Street, Boston, MA 02114, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18818365" target="_blank"〉PubMed〈/a〉
    Keywords: Adenoviridae/*genetics/physiology ; Animals ; Cell Differentiation ; Cell Line ; *Cellular Reprogramming ; Chimera ; Cloning, Molecular ; Female ; Fibroblasts/*cytology/metabolism/virology ; Genes, myc ; *Genetic Vectors ; Hepatocytes/*cytology/metabolism/virology ; Kruppel-Like Transcription Factors/genetics/metabolism ; Liver/cytology/embryology ; Male ; Mice ; Mice, SCID ; Octamer Transcription Factor-3/genetics/metabolism ; *Pluripotent Stem Cells/cytology/metabolism/transplantation ; Proto-Oncogene Proteins c-myc/genetics/metabolism ; SOXB1 Transcription Factors/genetics/metabolism ; Teratoma/etiology ; Transgenes ; Virus Integration
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  • 67
    Publication Date: 2008-02-09
    Description: Previous studies have reported that related human couples tend to produce more children than unrelated couples but have been unable to determine whether this difference is biological or stems from socioeconomic variables. Our results, drawn from all known couples of the Icelandic population born between 1800 and 1965, show a significant positive association between kinship and fertility, with the greatest reproductive success observed for couples related at the level of third and fourth cousins. Owing to the relative socioeconomic homogeneity of Icelanders, and the observation of highly significant differences in the fertility of couples separated by very fine intervals of kinship, we conclude that this association is likely to have a biological basis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Helgason, Agnar -- Palsson, Saebjorn -- Gudbjartsson, Daniel F -- Kristjansson, Thornordur -- Stefansson, Kari -- New York, N.Y. -- Science. 2008 Feb 8;319(5864):813-6. doi: 10.1126/science.1150232.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉deCODE Genetics, Sturlugata 8, 101 Reykjavik, Iceland. agnar@decode.is〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18258915" target="_blank"〉PubMed〈/a〉
    Keywords: Consanguinity ; *Family ; *Family Characteristics ; Female ; *Fertility ; Humans ; Iceland ; Male ; Socioeconomic Factors
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  • 68
    Publication Date: 2008-02-16
    Description: Induced pluripotent stem (iPS) cells have been generated from mouse and human fibroblasts by the retroviral transduction of four transcription factors. However, the cell origins and molecular mechanisms of iPS cell induction remain elusive. This report describes the generation of iPS cells from adult mouse hepatocytes and gastric epithelial cells. These iPS cell clones appear to be equivalent to embryonic stem cells in gene expression and are competent to generate germline chimeras. Genetic lineage tracings show that liver-derived iPS cells are derived from albumin-expressing cells. No common retroviral integration sites are found among multiple clones. These data suggest that iPS cells are generated by direct reprogramming of lineage-committed somatic cells and that retroviral integration into specific sites is not required.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Aoi, Takashi -- Yae, Kojiro -- Nakagawa, Masato -- Ichisaka, Tomoko -- Okita, Keisuke -- Takahashi, Kazutoshi -- Chiba, Tsutomu -- Yamanaka, Shinya -- New York, N.Y. -- Science. 2008 Aug 1;321(5889):699-702. doi: 10.1126/science.1154884. Epub 2008 Feb 14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Stem Cell Biology, Institute for Frontier Medical Sciences, Kyoto University, Kyoto 606-8507, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18276851" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blastocyst/cytology ; Cell Differentiation ; Cell Proliferation ; *Cellular Reprogramming ; Chimera ; Clone Cells ; Culture Media ; Embryonic Stem Cells/cytology/metabolism ; Epithelial Cells/*cytology ; Gastric Mucosa/*cytology ; Genetic Vectors ; Hepatocytes/*cytology ; Mice ; Mice, Nude ; Neoplasms/etiology ; Pluripotent Stem Cells/*cytology/metabolism ; Retroviridae/genetics ; Stem Cell Transplantation ; Transcription Factors/genetics ; Transfection ; Virus Integration
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  • 69
    Publication Date: 2008-02-16
    Description: Eastern boundary current systems are among the world's most productive large marine ecosystems. Because upwelling currents transport nutrient-rich but oxygen-depleted water onto shallow seas, large expanses of productive continental shelves can be vulnerable to the risk of extreme low-oxygen events. Here, we report the novel rise of water-column shelf anoxia in the northern California Current system, a large marine ecosystem with no previous record of such extreme oxygen deficits. The expansion of anoxia highlights the potential for rapid and discontinuous ecosystem change in productive coastal systems that sustain a major portion of the world's fisheries.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chan, F -- Barth, J A -- Lubchenco, J -- Kirincich, A -- Weeks, H -- Peterson, W T -- Menge, B A -- New York, N.Y. -- Science. 2008 Feb 15;319(5865):920. doi: 10.1126/science.1149016.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Zoology, Oregon State University, Corvallis, OR 97331, USA. chanft@science.oregonstate.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18276882" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacteria/growth & development ; *Ecosystem ; *Fishes ; *Invertebrates ; *Oxygen ; Pacific Ocean ; Population Dynamics ; Seasons ; *Seawater ; *Water Movements
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  • 70
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-02-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shoubridge, Eric A -- Wai, Timothy -- New York, N.Y. -- Science. 2008 Feb 15;319(5865):914-5. doi: 10.1126/science.1154515.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Montreal Neurological Institute and Department of Human Genetics, McGill University, Montreal, Quebec H3A 2B4, Canada. eric@ericpc.mni.mcgill.ca〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18276880" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autophagy ; Cell Line ; DNA, Mitochondrial/*genetics ; DNA-Directed DNA Polymerase/genetics ; Electron Transport Complex IV/*genetics ; Embryonic Stem Cells ; Female ; Frameshift Mutation ; *Germ-Line Mutation ; Male ; Mice ; Mitochondria/physiology ; NADH Dehydrogenase/*genetics ; Oocytes/*physiology ; Oogenesis ; *Selection, Genetic
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  • 71
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-11-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2008 Nov 7;322(5903):838. doi: 10.1126/science.322.5903.838.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18988816" target="_blank"〉PubMed〈/a〉
    Keywords: African Continental Ancestry Group/genetics ; Asian Continental Ancestry Group/genetics ; Costs and Cost Analysis ; Female ; *Genome, Human ; *Genomics/economics/methods ; Humans ; Leukemia, Myeloid, Acute/genetics ; Male ; *Polymorphism, Single Nucleotide ; *Sequence Analysis, DNA/economics/methods
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  • 72
    Publication Date: 2008-10-11
    Description: Naturally occurring Foxp3+CD4+ regulatory T cells (Tregs) are essential for maintaining immunological self-tolerance and immune homeostasis. Here, we show that a specific deficiency of cytotoxic T lymphocyte antigen 4 (CTLA-4) in Tregs results in spontaneous development of systemic lymphoproliferation, fatal T cell-mediated autoimmune disease, and hyperproduction of immunoglobulin E in mice, and it also produces potent tumor immunity. Treg-specific CTLA-4 deficiency impairs in vivo and in vitro suppressive function of Tregs-in particular, Treg-mediated down-regulation of CD80 and CD86 expression on dendritic cells. Thus, natural Tregs may critically require CTLA-4 to suppress immune responses by affecting the potency of antigen-presenting cells to activate other T cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wing, Kajsa -- Onishi, Yasushi -- Prieto-Martin, Paz -- Yamaguchi, Tomoyuki -- Miyara, Makoto -- Fehervari, Zoltan -- Nomura, Takashi -- Sakaguchi, Shimon -- New York, N.Y. -- Science. 2008 Oct 10;322(5899):271-5. doi: 10.1126/science.1160062.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Experimental Pathology, Institute for Frontier Medical Sciences, Kyoto University, Kyoto 606-8507, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18845758" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigen-Presenting Cells/immunology ; Antigens, CD/genetics/immunology/*metabolism ; Antigens, CD80/metabolism ; Antigens, CD86/metabolism ; Autoimmune Diseases/immunology ; *Autoimmunity ; CD8-Positive T-Lymphocytes/immunology ; CTLA-4 Antigen ; Dendritic Cells/immunology ; Down-Regulation ; Female ; Forkhead Transcription Factors/genetics/metabolism ; *Immune Tolerance ; Immunoglobulin E/blood ; Immunoglobulin G/blood ; Leukemia/immunology ; Lymphocyte Activation ; Lymphocytes/immunology ; Male ; Mice ; Mice, Inbred BALB C ; T-Lymphocytes, Regulatory/*immunology
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  • 73
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-04-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chang, Michael -- Lingner, Joachim -- New York, N.Y. -- Science. 2008 Apr 4;320(5872):60-1. doi: 10.1126/science.1155132.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Ecole Polytechnique Federale de Lausanne, Swiss Institute for Experimental Cancer Research (ISREC), CH-1066 Epalinges, Switzerland. michael.chang@epfl.ch〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18388281" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing/metabolism ; Animals ; DNA-Activated Protein Kinase/metabolism ; Humans ; Mice ; Nuclear Proteins/metabolism ; Phosphatidylinositol 3-Kinases/metabolism ; Protein Kinases/metabolism ; Protein-Serine-Threonine Kinases/metabolism ; *Signal Transduction ; TOR Serine-Threonine Kinases ; Telomere-Binding Proteins/genetics/*metabolism
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  • 74
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-02-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, Jean -- New York, N.Y. -- Science. 2008 Feb 1;319(5863):558-9. doi: 10.1126/science.319.5863.558b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18239099" target="_blank"〉PubMed〈/a〉
    Keywords: Aging ; Animals ; Female ; Forkhead Transcription Factors/genetics/physiology ; Humans ; Mice ; Oocytes/*physiology ; Ovarian Follicle/*physiology ; Ovulation ; PTEN Phosphohydrolase/antagonists & inhibitors/genetics/*physiology ; Primary Ovarian Insufficiency/*physiopathology/therapy ; Signal Transduction
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  • 75
    Publication Date: 2008-08-16
    Description: The extent to which synaptic activity can signal a sensory stimulus limits the information available to a neuron. We determined the contribution of individual synapses to sensory representation by recording excitatory postsynaptic currents (EPSCs) in cerebellar granule cells during a time-varying, quantifiable vestibular stimulus. Vestibular-sensitive synapses faithfully reported direction and velocity, rather than position or acceleration of whole-body motion, via bidirectional modulation of EPSC frequency. The lack of short-term synaptic dynamics ensured a highly linear relationship between velocity and charge transfer, and as few as 100 synapses provided resolution approaching psychophysical limits. This indicates that highly accurate stimulus representation can be achieved by small networks and even within single neurons.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2771362/" 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/PMC2771362/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arenz, Alexander -- Silver, R Angus -- Schaefer, Andreas T -- Margrie, Troy W -- 064413/Wellcome Trust/United Kingdom -- 072292/Wellcome Trust/United Kingdom -- BB/F005490/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- MC_U117597156/Medical Research Council/United Kingdom -- Biotechnology and Biological Sciences Research Council/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2008 Aug 15;321(5891):977-80. doi: 10.1126/science.1158391.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroscience, Physiology, and Pharmacology, University College London, University Street, London WC1E 6JJ, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18703744" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cerebellum/cytology/*physiology ; Excitatory Postsynaptic Potentials ; Mice ; Nerve Fibers/physiology ; Neurons/*physiology ; Patch-Clamp Techniques ; Rotation ; Synapses/*physiology ; Vestibule, Labyrinth/*physiology
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  • 76
    Publication Date: 2008-05-24
    Description: beta-Arrestins have important roles in the regulation of seven-transmembrane receptors (7TMRs). Smoothened (Smo) is a 7TMR that mediates effects of Hedgehog on developmental processes and whose dysregulation may cause tumorigenesis. beta-Arrestins are required for endocytosis of Smo and signaling to Gli transcription factors. In mammalian cells, Smo-dependent signaling requires translocation to primary cilia. We demonstrated that beta-arrestins mediate the activity-dependent interaction of Smo and the kinesin motor protein Kif3A. This multimeric complex localized to primary cilia and was disrupted in cells transfected with beta-arrestin small interfering RNA. beta-Arrestin 1 or beta-arrestin 2 depletion prevented the localization of Smo to primary cilia and the Smo-dependent activation of Gli. These results suggest roles for beta-arrestins in mediating the intracellular transport of a 7TMR to its obligate subcellular location for signaling.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2587210/" 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/PMC2587210/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kovacs, Jeffrey J -- Whalen, Erin J -- Liu, Renshui -- Xiao, Kunhong -- Kim, Jihee -- Chen, Minyong -- Wang, Jiangbo -- Chen, Wei -- Lefkowitz, Robert J -- 5R01 CA113656-02/CA/NCI NIH HHS/ -- 5T32 AI007217-25/AI/NIAID NIH HHS/ -- HL16037/HL/NHLBI NIH HHS/ -- HL70631/HL/NHLBI NIH HHS/ -- R01 CA113656/CA/NCI NIH HHS/ -- R01 CA113656-02/CA/NCI NIH HHS/ -- R01 CA113656-03/CA/NCI NIH HHS/ -- R01 HL016037/HL/NHLBI NIH HHS/ -- R01 HL016037-35/HL/NHLBI NIH HHS/ -- R01 HL070631/HL/NHLBI NIH HHS/ -- R01 HL070631-04/HL/NHLBI NIH HHS/ -- T32 AI007217/AI/NIAID NIH HHS/ -- T32 AI007217-25/AI/NIAID NIH HHS/ -- T32 AI007217-26/AI/NIAID NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2008 Jun 27;320(5884):1777-81. doi: 10.1126/science.1157983. Epub 2008 May 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Duke University Medical Center, Durham, NC 27710, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18497258" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arrestins/genetics/*metabolism ; Cilia/*metabolism ; Hedgehog Proteins/metabolism ; Kinesin/*metabolism ; Mice ; Microscopy, Confocal ; Molecular Motor Proteins/*metabolism ; NIH 3T3 Cells ; Protein Transport ; RNA Interference ; Receptors, G-Protein-Coupled/*metabolism ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; Transcription Factors/metabolism ; Transfection
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  • 77
    Publication Date: 2008-10-25
    Description: It is debated whether species-level differences in ecological strategy, which play a key role in much of coexistence theory, are important in structuring highly diverse communities. We examined the co-occurrence patterns of over 1100 tree species in a 25-hectare Amazonian forest plot in relation to field-measured functional traits. Using a null model approach, we show that co-occurring trees are often less ecologically similar than a niche-free (neutral) model predicts. Furthermore, we find evidence for processes that simultaneously drive convergence and divergence in key aspects of plant strategy, suggesting that at least two distinct niche-based processes are occurring. Our results show that strategy differentiation among species contributes to the maintenance of diversity in one of the most diverse tropical forests in the world.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kraft, Nathan J B -- Valencia, Renato -- Ackerly, David D -- New York, N.Y. -- Science. 2008 Oct 24;322(5901):580-2. doi: 10.1126/science.1160662.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Integrative Biology, University of California, Berkeley, CA 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18948539" target="_blank"〉PubMed〈/a〉
    Keywords: *Biodiversity ; *Ecosystem ; Ecuador ; Nitrogen/analysis ; Plant Leaves/anatomy & histology/chemistry ; Population Dynamics ; Seeds ; *Trees/anatomy & histology/growth & development/physiology ; *Tropical Climate ; Wood
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  • 78
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-08-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holmes, Nick -- New York, N.Y. -- Science. 2008 Aug 1;321(5889):646-7. doi: 10.1126/science.1162294.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Immunology, Department of Pathology, Cambridge University, Cambridge CB2 1QP, UK. nh106@cam.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18669848" target="_blank"〉PubMed〈/a〉
    Keywords: *Alternative Splicing ; Animals ; Antigens, CD45/chemistry/*genetics/metabolism ; CD4-Positive T-Lymphocytes/*immunology/*metabolism ; Heterogeneous-Nuclear Ribonucleoproteins/*metabolism ; Humans ; *Lymphocyte Activation ; Mice ; Mutation ; Platelet Membrane Glycoprotein IIb/genetics/metabolism ; Polymorphism, Single Nucleotide ; Protein Isoforms/chemistry/genetics/metabolism ; RNA Precursors/genetics ; STAT5 Transcription Factor/genetics/metabolism
    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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  • 79
    Publication Date: 2008-11-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chapron, Guillaume -- Samelius, Gustaf -- New York, N.Y. -- Science. 2008 Nov 14;322(5904):1049-50; author reply 1049-50. doi: 10.1126/science.322.5904.1049b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19008429" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biodiversity ; *Climate ; Conservation of Natural Resources/legislation & jurisprudence ; Ecology/*legislation & jurisprudence/methods ; *Ecosystem ; Population Dynamics
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  • 80
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-08-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Eliopoulos, Aristides G -- New York, N.Y. -- Science. 2008 Aug 1;321(5889):648-9. doi: 10.1126/science.1162212.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University of Crete Medical School and Institute for Molecular Biology and Biotechnology, Foundation of Research and Technology Hellas, Heraklion, Greece. eliopag@med.uoc.gr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18669850" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD40/*metabolism ; B-Lymphocytes/immunology/*metabolism ; Cytoplasm/metabolism ; I-kappa B Kinase/metabolism ; Inhibitor of Apoptosis Proteins/metabolism ; JNK Mitogen-Activated Protein Kinases/metabolism ; MAP Kinase Kinase Kinase 1/metabolism ; *MAP Kinase Signaling System ; Mice ; Phosphorylation ; Proteasome Endopeptidase Complex/metabolism ; *Signal Transduction ; TNF Receptor-Associated Factor 2/metabolism ; TNF Receptor-Associated Factor 3/metabolism ; TNF Receptor-Associated Factor 6/metabolism ; Ubiquitin-Conjugating Enzymes/metabolism ; Ubiquitination ; p38 Mitogen-Activated Protein Kinases/metabolism
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  • 81
    Publication Date: 2008-06-21
    Description: The control of innate immune responses through activation of the nuclear transcription factor NF-kappaB is essential for the elimination of invading microbial pathogens. We showed that the bacterial N-(3-oxo-dodecanoyl) homoserine lactone (C12) selectively impairs the regulation of NF-kappaB functions in activated mammalian cells. The consequence is specific repression of stimulus-mediated induction of NF-kappaB-responsive genes encoding inflammatory cytokines and other immune regulators. These findings uncover a strategy by which C12-producing opportunistic pathogens, such as Pseudomonas aeruginosa, attenuate the innate immune system to establish and maintain local persistent infection in humans, for example, in cystic fibrosis patients.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kravchenko, Vladimir V -- Kaufmann, Gunnar F -- Mathison, John C -- Scott, David A -- Katz, Alexander Z -- Grauer, David C -- Lehmann, Mandy -- Meijler, Michael M -- Janda, Kim D -- Ulevitch, Richard J -- New York, N.Y. -- Science. 2008 Jul 11;321(5886):259-63. doi: 10.1126/science.1156499. Epub 2008 Jun 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology and Microbial Sciences, Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18566250" target="_blank"〉PubMed〈/a〉
    Keywords: 4-Butyrolactone/*analogs & derivatives/physiology ; Adult ; Animals ; Cyclic AMP Response Element-Binding Protein/metabolism ; Cystic Fibrosis/microbiology ; Female ; *Gene Expression Regulation ; Homoserine/*analogs & derivatives/physiology ; Humans ; I-kappa B Kinase/metabolism ; I-kappa B Proteins/metabolism ; Immunity, Innate ; Interferon-gamma/immunology ; Lipopolysaccharides/immunology ; Macrophage Activation ; Macrophages/*immunology/*metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Middle Aged ; NF-kappa B/*metabolism ; Phosphorylation ; Pseudomonas Infections/immunology/microbiology ; Pseudomonas aeruginosa/immunology/*pathogenicity/physiology ; *Signal Transduction ; Toll-Like Receptors/metabolism ; Transcription Factor RelA/metabolism
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  • 82
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-02-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Krieg, Arthur M -- Lipford, Grayson B -- New York, N.Y. -- Science. 2008 Feb 1;319(5863):576-7. doi: 10.1126/science.1154207.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Coley Pharmaceutical Group, 93 Worcester Street, Wellesley, MA 02481, USA. akrieg@coleypharma.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18239112" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autoimmune Diseases/*immunology/metabolism ; Cathepsin K ; Cathepsins/antagonists & inhibitors/deficiency/*metabolism ; Cytokines/secretion ; DNA, Bacterial/metabolism ; DNA, Viral/metabolism ; Dendritic Cells/immunology ; Dinucleoside Phosphates/immunology/metabolism ; Endoplasmic Reticulum/metabolism ; Endosomes/metabolism ; Humans ; *Immunity, Innate ; Inflammation/*immunology/metabolism ; Lysosomes/metabolism ; Mice ; Protease Inhibitors/pharmacology ; Rats ; Signal Transduction ; Toll-Like Receptor 9/antagonists & inhibitors/*metabolism
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  • 83
    Publication Date: 2008-02-16
    Description: The majority of mitochondrial DNA (mtDNA) mutations that cause human disease are mild to moderately deleterious, yet many random mtDNA mutations would be expected to be severe. To determine the fate of the more severe mtDNA mutations, we introduced mtDNAs containing two mutations that affect oxidative phosphorylation into the female mouse germ line. The severe ND6 mutation was selectively eliminated during oogenesis within four generations, whereas the milder COI mutation was retained throughout multiple generations even though the offspring consistently developed mitochondrial myopathy and cardiomyopathy. Thus, severe mtDNA mutations appear to be selectively eliminated from the female germ line, thereby minimizing their impact on population fitness.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3049809/" 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/PMC3049809/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fan, Weiwei -- Waymire, Katrina G -- Narula, Navneet -- Li, Peng -- Rocher, Christophe -- Coskun, Pinar E -- Vannan, Mani A -- Narula, Jagat -- Macgregor, Grant R -- Wallace, Douglas C -- AG13154/AG/NIA NIH HHS/ -- AG16573/AG/NIA NIH HHS/ -- AG24373/AG/NIA NIH HHS/ -- DK73691/DK/NIDDK NIH HHS/ -- HD45913/HD/NICHD NIH HHS/ -- NS21328/NS/NINDS NIH HHS/ -- U01 HD045913-01/HD/NICHD NIH HHS/ -- U01 HD045913-02/HD/NICHD NIH HHS/ -- U01 HD045913-03/HD/NICHD NIH HHS/ -- U01 HD045913-04/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 2008 Feb 15;319(5865):958-62. doi: 10.1126/science.1147786.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Molecular and Mitochondrial Medicine and Genetics, University of California, Irvine, CA 92697, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18276892" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cardiomyopathies/genetics/pathology ; Cell Line ; Crosses, Genetic ; DNA, Mitochondrial/*genetics ; Electron Transport Complex I/metabolism ; Electron Transport Complex IV/*genetics/metabolism ; Embryonic Stem Cells ; Female ; Frameshift Mutation ; *Germ-Line Mutation ; Litter Size ; Male ; Mice ; Mitochondria/physiology ; Mitochondrial Myopathies/*genetics/pathology ; Mutation, Missense ; Myocardium/pathology ; NADH Dehydrogenase/*genetics ; Oocytes/*physiology ; Oogenesis ; Oxidative Phosphorylation ; Oxygen Consumption ; Point Mutation ; *Selection, Genetic
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  • 84
    Publication Date: 2008-09-06
    Description: Changes in gene regulation are thought to have contributed to the evolution of human development. However, in vivo evidence for uniquely human developmental regulatory function has remained elusive. In transgenic mice, a conserved noncoding sequence (HACNS1) that evolved extremely rapidly in humans acted as an enhancer of gene expression that has gained a strong limb expression domain relative to the orthologous elements from chimpanzee and rhesus macaque. This gain of function was consistent across two developmental stages in the mouse and included the presumptive anterior wrist and proximal thumb. In vivo analyses with synthetic enhancers, in which human-specific substitutions were introduced into the chimpanzee enhancer sequence or reverted in the human enhancer to the ancestral state, indicated that 13 substitutions clustered in an 81-base pair module otherwise highly constrained among terrestrial vertebrates were sufficient to confer the human-specific limb expression domain.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2658639/" 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/PMC2658639/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Prabhakar, Shyam -- Visel, Axel -- Akiyama, Jennifer A -- Shoukry, Malak -- Lewis, Keith D -- Holt, Amy -- Plajzer-Frick, Ingrid -- Morrison, Harris -- Fitzpatrick, David R -- Afzal, Veena -- Pennacchio, Len A -- Rubin, Edward M -- Noonan, James P -- 1-F32-GM074367/GM/NIGMS NIH HHS/ -- F32 GM074367/GM/NIGMS NIH HHS/ -- F32 GM074367-02/GM/NIGMS NIH HHS/ -- HG003988/HG/NHGRI NIH HHS/ -- HL066681/HL/NHLBI NIH HHS/ -- MC_U127561093/Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2008 Sep 5;321(5894):1346-50. doi: 10.1126/science.1159974.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genomics Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18772437" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Binding Sites ; Body Patterning/*genetics ; Conserved Sequence ; Embryonic Development ; *Enhancer Elements, Genetic ; Evolution, Molecular ; Extremities/*embryology ; Gene Expression Profiling ; *Gene Expression Regulation, Developmental ; Humans ; Limb Buds/embryology/metabolism ; Macaca mulatta/genetics ; Mice ; Mice, Transgenic ; Molecular Sequence Data ; Mutation ; PAX9 Transcription Factor/metabolism ; Pan troglodytes/genetics ; Selection, Genetic ; Transcription Factors/metabolism
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  • 85
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-06-17
    Description: 〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2701207/" 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/PMC2701207/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Horton, Jay D -- P01 HL020948/HL/NHLBI NIH HHS/ -- P01 HL020948-280017/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2008 Jun 13;320(5882):1433-4. doi: 10.1126/science.1159651.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics, University of Texas Southwestern Medical Center at Dallas, 5323 Harry Hines Boulevard, Dallas, TX 75390-9046, USA. jay.horton@utsouthwestern.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18556540" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cholesterol/*biosynthesis/blood ; DNA-Binding Proteins/genetics/*metabolism ; Endoplasmic Reticulum/metabolism ; Fatty Acids/*biosynthesis ; Gene Deletion ; Gene Expression Regulation ; Lipids/biosynthesis ; *Lipogenesis ; Liver/*metabolism ; Mice ; Nuclear Proteins/genetics/*metabolism ; Protein Folding ; Sterol Regulatory Element Binding Proteins/genetics/metabolism ; Transcription Factors/genetics/*physiology ; Transcription, Genetic ; Triglycerides/blood
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  • 86
    Publication Date: 2008-11-15
    Description: Leukocyte recruitment to sites of infection or inflammation requires multiple adhesive events. Although numerous players promoting leukocyte-endothelial interactions have been characterized, functionally important endogenous inhibitors of leukocyte adhesion have not been identified. Here we describe the endothelially derived secreted molecule Del-1 (developmental endothelial locus-1) as an anti-adhesive factor that interferes with the integrin LFA-1-dependent leukocyte-endothelial adhesion. Endothelial Del-1 deficiency increased LFA-1-dependent leukocyte adhesion in vitro and in vivo. Del-1-/- mice displayed significantly higher neutrophil accumulation in lipopolysaccharide-induced lung inflammation in vivo, which was reversed in Del-1/LFA-1 double-deficient mice. Thus, Del-1 is an endogenous inhibitor of inflammatory cell recruitment and could provide a basis for targeting leukocyte-endothelial interactions in disease.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2753175/" 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/PMC2753175/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Choi, Eun Young -- Chavakis, Emmanouil -- Czabanka, Marcus A -- Langer, Harald F -- Fraemohs, Line -- Economopoulou, Matina -- Kundu, Ramendra K -- Orlandi, Alessia -- Zheng, Ying Yi -- Prieto, Darue A -- Ballantyne, Christie M -- Constant, Stephanie L -- Aird, William C -- Papayannopoulou, Thalia -- Gahmberg, Carl G -- Udey, Mark C -- Vajkoczy, Peter -- Quertermous, Thomas -- Dimmeler, Stefanie -- Weber, Christian -- Chavakis, Triantafyllos -- AI067254/AI/NIAID NIH HHS/ -- R01 HL082927/HL/NHLBI NIH HHS/ -- Z01 BC010790-01/Intramural NIH HHS/ -- New York, N.Y. -- Science. 2008 Nov 14;322(5904):1101-4. doi: 10.1126/science.1165218.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Experimental Immunology Branch, Center for Cancer Research, National Cancer Institute (NCI), National Institutes of Health (NIH), Bethesda, MD, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19008446" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bronchoalveolar Lavage Fluid/cytology/immunology ; Carrier Proteins/*physiology ; *Cell Adhesion ; Endothelial Cells/*physiology ; Intercellular Adhesion Molecule-1/metabolism ; Leukocyte Rolling ; Ligands ; Lipopolysaccharides/immunology ; Lung/blood supply/immunology ; Lymphocyte Function-Associated Antigen-1/metabolism ; Mice ; Monocytes/*physiology ; *Neutrophil Infiltration ; Neutrophils/*physiology ; Peritonitis/immunology ; Pneumonia/*immunology ; Recombinant Fusion Proteins/metabolism
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  • 87
    Publication Date: 2008-09-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stokstad, Erik -- New York, N.Y. -- Science. 2008 Sep 19;321(5896):1619. doi: 10.1126/science.321.5896.1619a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18801974" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Ecosystem ; *Fisheries/economics/methods/statistics & numerical data ; *Fishes ; Humans ; Motivation ; Population Dynamics
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  • 88
    Publication Date: 2008-11-29
    Description: Hepatic glucose production is critical for basal brain function and survival when dietary glucose is unavailable. Glucose-6-phosphatase (G6Pase) is an essential, rate-limiting enzyme that serves as a terminal gatekeeper for hepatic glucose release into the plasma. Mutations in G6Pase result in Von Gierke's disease (glycogen storage disease-1a), a potentially fatal genetic disorder. We have identified the transcriptional coactivator SRC-2 as a regulator of fasting hepatic glucose release, a function that SRC-2 performs by controlling the expression of hepatic G6Pase. SRC-2 modulates G6Pase expression directly by acting as a coactivator with the orphan nuclear receptor RORalpha. In addition, SRC-2 ablation, in both a whole-body and liver-specific manner, resulted in a Von Gierke's disease phenotype in mice. Our results position SRC-2 as a critical regulator of mammalian glucose production.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2668604/" 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/PMC2668604/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chopra, Atul R -- Louet, Jean-Francois -- Saha, Pradip -- An, Jie -- Demayo, Franco -- Xu, Jianming -- York, Brian -- Karpen, Saul -- Finegold, Milton -- Moore, David -- Chan, Lawrence -- Newgard, Christopher B -- O'Malley, Bert W -- DK58242/DK/NIDDK NIH HHS/ -- HL51586/HL/NHLBI NIH HHS/ -- P01 DK059820/DK/NIDDK NIH HHS/ -- P01 DK059820-08/DK/NIDDK NIH HHS/ -- P01 DK58398/DK/NIDDK NIH HHS/ -- P01 DK59820/DK/NIDDK NIH HHS/ -- R01 DK056239/DK/NIDDK NIH HHS/ -- R01 DK056239-08/DK/NIDDK NIH HHS/ -- U19 DK062434/DK/NIDDK NIH HHS/ -- U19 DK062434-07/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2008 Nov 28;322(5906):1395-9. doi: 10.1126/science.1164847.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cellular Biology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX 77030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19039140" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Fasting ; Female ; Gene Expression Profiling ; Gene Expression Regulation, Enzymologic ; Glucose/*metabolism ; Glucose-6-Phosphatase/*genetics/metabolism ; Glycogen Storage Disease Type I/*genetics/metabolism ; Hepatocytes/metabolism ; Kidney/metabolism ; Liver/*metabolism ; Liver Glycogen/metabolism ; Male ; Mice ; Mice, Knockout ; Nuclear Receptor Coactivator 2/genetics/*metabolism ; RNA Interference ; Receptors, Retinoic Acid/metabolism ; Response Elements ; Transcription, Genetic ; Triglycerides/metabolism
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  • 89
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-03-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Smetacek, Victor -- Cloern, James E -- New York, N.Y. -- Science. 2008 Mar 7;319(5868):1346-8. doi: 10.1126/science.1151330.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Alfred Wegener Institute for Polar and Marine Research of the Helmholtz Foundation, 27570 Bremerhaven, and the University of Bremen, FB 2, 28334 Bremen, Germany. Victor.Smetacek@awi.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18323440" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biomass ; Climate ; Diatoms/growth & development/physiology ; *Ecosystem ; Environment ; Food Chain ; Life Cycle Stages ; Oceans and Seas ; *Phytoplankton/growth & development/physiology ; Population Dynamics ; Seasons ; Temperature
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  • 90
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-09-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Klein, Christoph A -- New York, N.Y. -- Science. 2008 Sep 26;321(5897):1785-7. doi: 10.1126/science.1164853.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Oncogenomics, Department of Pathology, University of Regensburg, Franz-Josef-Strauss-Allee 11, 93053 Regensburg, Germany. christoph.klein@klinik.uni-regensburg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18818347" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Movement ; Cell Proliferation ; Cell Survival ; Cell Transformation, Neoplastic ; Epithelial Cells/cytology/physiology ; Gene Expression Regulation, Neoplastic ; Humans ; Lung Neoplasms/pathology/*secondary ; Mammary Glands, Animal/cytology ; Mice ; *Neoplasm Metastasis/genetics/pathology ; Neoplasms/genetics/*pathology ; Neoplastic Cells, Circulating/pathology ; Oncogenes ; Twist Transcription Factor/*genetics/metabolism
    Print ISSN: 0036-8075
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  • 91
    Publication Date: 2008-07-05
    Description: Sudden infant death syndrome is the leading cause of death in the postneonatal period in developed countries. Postmortem studies show alterations in serotonin neurons in the brainstem of such infants. However, the mechanism by which altered serotonin homeostasis might cause sudden death is unknown. We investigated the consequences of altering the autoinhibitory capacity of serotonin neurons with the reversible overexpression of serotonin 1A autoreceptors in transgenic mice. Overexpressing mice exhibited sporadic bradycardia and hypothermia that occurred during a limited developmental period and frequently progressed to death. Moreover, overexpressing mice failed to activate autonomic target organs in response to environmental challenges. These findings show that excessive serotonin autoinhibition is a risk factor for catastrophic autonomic dysregulation and provide a mechanism for a role of altered serotonin homeostasis in sudden infant death syndrome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Audero, Enrica -- Coppi, Elisabetta -- Mlinar, Boris -- Rossetti, Tiziana -- Caprioli, Antonio -- Banchaabouchi, Mumna Al -- Corradetti, Renato -- Gross, Cornelius -- MH64948/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2008 Jul 4;321(5885):130-3. doi: 10.1126/science.1157871.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Mouse Biology Unit, European Molecular Biology Laboratory (EMBL), Via Ramarini 32, 00015 Monterotondo, Italy.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18599790" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autonomic Nervous System/*physiology ; Autoreceptors/metabolism ; Body Temperature ; Doxycycline/pharmacology ; Electrocardiography ; Feedback, Physiological ; Heart Rate ; Homeostasis ; Humans ; Infant ; Mice ; Mice, Transgenic ; Motor Activity ; *Neural Inhibition ; Neurons/metabolism/*physiology ; Piperazines/administration & dosage/pharmacology ; Pyridines/administration & dosage/pharmacology ; Raphe Nuclei/cytology/metabolism ; Receptor, Serotonin, 5-HT1A/genetics/metabolism ; Serotonin/*metabolism ; Serotonin Antagonists/administration & dosage/pharmacology ; Sudden Infant Death/*etiology ; Sympathetic Nervous System/physiology ; Synaptic Transmission ; Tryptophan/metabolism/pharmacology
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  • 92
    Publication Date: 2008-07-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hoegh-Guldberg, O -- Hughes, L -- McIntyre, S -- Lindenmayer, D B -- Parmesan, C -- Possingham, H P -- Thomas, C D -- New York, N.Y. -- Science. 2008 Jul 18;321(5887):345-6. doi: 10.1126/science.1157897.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Marine Studies, Australian Research Council Centre for Excellence in Reef Studies and the Coral Reef Targeted Research Project, University of Queensland, St Lucia, Queensland (QLD) 4072, Australia. oveh@uq.edu.au〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18635780" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Biological ; Animals ; Biodiversity ; *Climate ; *Conservation of Natural Resources ; Ecology/*methods ; *Ecosystem ; Extinction, Biological ; Geography ; Humans ; Population Dynamics ; Socioeconomic Factors
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  • 93
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-11-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huang, Danwei -- New York, N.Y. -- Science. 2008 Nov 14;322(5904):1049; author reply 1049-50. doi: 10.1126/science.322.5904.1049a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19008428" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Anthozoa/classification/physiology ; *Climate ; Ecology/*methods ; *Ecosystem ; Extinction, Biological ; Population Dynamics
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  • 94
    Publication Date: 2008-03-08
    Description: Antigenically variable M proteins are major virulence factors and immunogens of the human pathogen group A Streptococcus (GAS). Here, we report the approximately 3 angstrom resolution structure of a GAS M1 fragment containing the regions responsible for eliciting type-specific, protective immunity and for binding fibrinogen, which promotes M1 proinflammatory and antiphagocytic functions. The structure revealed substantial irregularities and instabilities throughout the coiled coil of the M1 fragment. Similar structural irregularities occur in myosin and tropomyosin, explaining the patterns of cross-reactivity seen in autoimmune sequelae of GAS infection. Sequence idealization of a large segment of the M1 coiled coil enhanced stability but diminished fibrinogen binding, proinflammatory effects, and antibody cross-reactivity, whereas it left protective immunogenicity undiminished. Idealized M proteins appear to have promise as vaccine immunogens.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2288698/" 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/PMC2288698/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McNamara, Case -- Zinkernagel, Annelies S -- Macheboeuf, Pauline -- Cunningham, Madeleine W -- Nizet, Victor -- Ghosh, Partho -- R01 AI048694/AI/NIAID NIH HHS/ -- R01 AI052453/AI/NIAID NIH HHS/ -- R01 AI052453-08/AI/NIAID NIH HHS/ -- R21 AI071167/AI/NIAID NIH HHS/ -- R21 AI071167-01A1/AI/NIAID NIH HHS/ -- T32 GM008326/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2008 Mar 7;319(5868):1405-8. doi: 10.1126/science.1154470.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18323455" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amino Acid Substitution ; Animals ; Antibodies, Bacterial/immunology ; Antigens, Bacterial/*chemistry/genetics/immunology/metabolism ; Bacterial Outer Membrane Proteins/*chemistry/genetics/immunology/metabolism ; Carrier Proteins/*chemistry/genetics/immunology/metabolism ; Circular Dichroism ; Cross Reactions ; Crystallography, X-Ray ; Dimerization ; Fibrinogen/metabolism ; Humans ; Mice ; Models, Molecular ; Molecular Sequence Data ; Mutant Proteins/chemistry ; Protein Conformation ; Protein Structure, Secondary ; Repetitive Sequences, Amino Acid ; Streptococcal Infections/immunology/microbiology ; Streptococcus pyogenes/*chemistry/immunology/*pathogenicity ; Virulence
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  • 95
    Publication Date: 2008-07-26
    Description: High copy number and random segregation confound genetic analysis of the mitochondrial genome. We developed an efficient selection for heritable mitochondrial genome (mtDNA) mutations in Drosophila, thereby enhancing a metazoan model for study of mitochondrial genetics and mutations causing human mitochondrial disease. Targeting a restriction enzyme to mitochondria in the germline compromised fertility, but escaper progeny carried homoplasmic mtDNA mutations lacking the cleavage site. Among mutations eliminating a site in the cytochrome c oxidase gene, mt:CoI(A302T) was healthy, mt:CoI(R301L) was male sterile but otherwise healthy, and mt:CoI(R301S) exhibited a wide range of defects, including growth retardation, neurodegeneration, muscular atrophy, male sterility, and reduced life span. Thus, germline expression of mitochondrial restriction enzymes creates a powerful selection and has allowed direct isolation of mitochondrial mutants in a metazoan.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2754248/" 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/PMC2754248/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xu, Hong -- DeLuca, Steven Z -- O'Farrell, Patrick H -- R01 AI060102/AI/NIAID NIH HHS/ -- R01 AI060102-08/AI/NIAID NIH HHS/ -- R01 GM037193/GM/NIGMS NIH HHS/ -- R01 GM037193-22/GM/NIGMS NIH HHS/ -- R01 GM086854/GM/NIGMS NIH HHS/ -- R01 GM086854-09A1/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2008 Jul 25;321(5888):575-7. doi: 10.1126/science.1160226.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Biophysics, University of California at San Francisco, San Francisco, CA 94158-2200, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18653897" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Genetically Modified ; Bacterial Proteins/genetics/metabolism ; DNA Restriction Enzymes/genetics/*metabolism ; DNA, Mitochondrial/*genetics/metabolism ; Deoxyribonucleases, Type II Site-Specific/genetics/*metabolism ; Drosophila melanogaster/embryology/*genetics/growth & development/metabolism ; Embryo, Nonmammalian/metabolism ; Eye/anatomy & histology/growth & development ; Female ; Genome, Insect ; *Genome, Mitochondrial ; Infertility, Male ; Male ; Mitochondrial Diseases/genetics/metabolism ; Morphogenesis ; Muscles/ultrastructure ; Muscular Dystrophy, Animal ; *Mutation ; Spermatogenesis
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  • 96
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-12-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Prum, Richard O -- New York, N.Y. -- Science. 2008 Dec 19;322(5909):1799-800. doi: 10.1126/science.1168808.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ecology and Evolutionary Biology and Peabody Museum of Natural History, Post Office Box 208105, Yale University, New Haven, CT 06520, USA. richard.prum@yale.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19095929" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Behavior, Animal ; *Biological Evolution ; *Birds/physiology ; Clutch Size ; *Dinosaurs/physiology ; Female ; *Fossils ; Male ; *Nesting Behavior ; Paternal Behavior ; Sexual Behavior, Animal
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  • 97
    Publication Date: 2008-03-22
    Description: The ability to select a better option from multiple acceptable ones is important for animals to optimize their resources. The mechanisms that underlie such decision-making processes are not well understood. We found that selection of egg-laying site in Drosophila melanogaster is a suitable system to probe the neural circuit that governs simple decision-making processes. First, Drosophila females pursue active probing of the environment before depositing each egg, apparently to evaluate site quality for every egg. Second, Drosophila females can either accept or reject a sucrose-containing medium, depending on the context. Last, communication of the "acceptability" of the sucrose-containing medium as an egg-laying option to the reproductive system depends on the function of a group of insulin-like peptide 7 (ILP7)-producing neurons. These findings suggest that selection of egg-laying site involves a simple decision-making process and provide an entry point toward a systematic dissection of this process.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2581776/" 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/PMC2581776/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yang, Chung-Hui -- Belawat, Priyanka -- Hafen, Ernst -- Jan, Lily Y -- Jan, Yuh-Nung -- R01 MH084234/MH/NIMH NIH HHS/ -- R01 NS040929/NS/NINDS NIH HHS/ -- R01 NS040929-08/NS/NINDS NIH HHS/ -- R01 NS047200-04/NS/NINDS NIH HHS/ -- R01 NS40929/NS/NINDS NIH HHS/ -- R37 NS040929/NS/NINDS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2008 Mar 21;319(5870):1679-83. doi: 10.1126/science.1151842.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Physiology, Biochemistry, and Biophysics, University of California at San Francisco, San Francisco, CA 94143-0725, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18356529" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Behavior, Animal ; *Decision Making ; Drosophila Proteins/metabolism ; *Drosophila melanogaster/physiology ; Female ; *Models, Animal ; Neurons/*physiology ; Neuropeptides/metabolism ; *Oviposition
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  • 98
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-08-09
    Description: Our ability to remember what we have seen is very limited. Most current views characterize this limit as a fixed number of items-only four objects-that can be held in visual working memory. We show that visual memory capacity is not fixed by the number of objects, but rather is a limited resource that is shared out dynamically between all items in the visual scene. This resource can be shifted flexibly between objects, with allocation biased by selective attention and toward targets of upcoming eye movements. The proportion of resources allocated to each item determines the precision with which it is remembered, a relation that we show is governed by a simple power law, allowing quantitative estimates of resource distribution in a scene.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2532743/" 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/PMC2532743/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bays, Paul M -- Husain, Masud -- 061140/Wellcome Trust/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2008 Aug 8;321(5890):851-4. doi: 10.1126/science.1158023.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Cognitive Neuroscience, University College London, 17 Queen Square, London WC1N 3AR, UK. p.bays@ion.ucl.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18687968" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; *Attention ; Female ; Fixation, Ocular ; Humans ; Male ; *Memory, Short-Term ; *Mental Recall ; Models, Neurological ; *Saccades ; Vision, Ocular ; *Visual Perception
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 99
    Publication Date: 2008-05-31
    Description: Close relatedness has long been considered crucial to the evolution of eusociality. However, it has recently been suggested that close relatedness may be a consequence, rather than a cause, of eusociality. We tested this idea with a comparative analysis of female mating frequencies in 267 species of eusocial bees, wasps, and ants. We found that mating with a single male, which maximizes relatedness, is ancestral for all eight independent eusocial lineages that we investigated. Mating with multiple males is always derived. Furthermore, we found that high polyandry (〉2 effective mates) occurs only in lineages whose workers have lost reproductive totipotency. These results provide the first evidence that monogamy was critical in the evolution of eusociality, strongly supporting the prediction of inclusive fitness theory.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hughes, William O H -- Oldroyd, Benjamin P -- Beekman, Madeleine -- Ratnieks, Francis L W -- New York, N.Y. -- Science. 2008 May 30;320(5880):1213-6. doi: 10.1126/science.1156108.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Integrative and Comparative Biology, University of Leeds, Leeds, LS2 9JT, UK. w.o.h.hughes@leeds.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18511689" target="_blank"〉PubMed〈/a〉
    Keywords: Altruism ; Animals ; Ants ; Bees ; *Biological Evolution ; Female ; Male ; Phylogeny ; *Sexual Behavior, Animal ; *Social Behavior ; Sociobiology ; Wasps
    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
    Publication Date: 2008-09-13
    Description: Classical ecological theory suggests that the coexistence of consumer species is fostered by resource-use differences, leading to greater resource use in communities with more species. However, explicit empirical support for this idea is lacking, because resource use by species is generally confounded with other species-specific attributes. We overcame this obstacle by co-opting behavioral plasticity in food choice among a group of animal consumers, allowing us to manipulate patterns of resource use while controlling for the effects of species identity and diversity. Within an aphid-parasitoid-radish community, we created a fully factorial manipulation of consumer resource-use breadth (specialist versus generalist) and species diversity (one versus three species) and found that resource exploitation improved with greater specialist, but not generalist, diversity. Therefore, resource partitioning, and not diversity per se, fostered greater overall resource consumption in our multispecies consumer communities.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Finke, Deborah L -- Snyder, William E -- New York, N.Y. -- Science. 2008 Sep 12;321(5895):1488-90. doi: 10.1126/science.1160854.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Entomology, Washington State University, Pullman, WA 99164, USA. finked@missouri.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18787167" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aphids/*parasitology/*physiology ; *Ecosystem ; Feeding Behavior ; Female ; Host-Parasite Interactions ; Oviposition ; Raphanus/*parasitology/physiology ; Wasps/*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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