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  • Male  (822)
  • Phosphorylation  (275)
  • American Association for the Advancement of Science (AAAS)  (1,074)
  • American Association of Petroleum Geologists (AAPG)
  • 2000-2004  (1,074)
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  • American Association for the Advancement of Science (AAAS)  (1,074)
  • American Association of Petroleum Geologists (AAPG)
  • Springer  (2)
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  • 1
    Publication Date: 2004-11-20
    Description: An autoregulatory transcription-translation feedback loop is thought to be essential in generating circadian rhythms in any model organism. In the cyanobacterium Synechococcus elongatus, the essential clock protein KaiC is proposed to form this type of transcriptional negative feedback. Nevertheless, we demonstrate here temperature-compensated, robust circadian cycling of KaiC phosphorylation even without kaiBC messenger RNA accumulation under continuous dark conditions. This rhythm persisted in the presence of a transcription or translation inhibitor. Moreover, kinetic profiles in the ratio of KaiC autophosphorylation-dephosphorylation were also temperature compensated in vitro. Thus, the cyanobacterial clock can keep time independent of de novo transcription and translation processes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tomita, Jun -- Nakajima, Masato -- Kondo, Takao -- Iwasaki, Hideo -- New York, N.Y. -- Science. 2005 Jan 14;307(5707):251-4. Epub 2004 Nov 18.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biological Science, Graduate School of Science, Nagoya University, and Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15550625" target="_blank"〉PubMed〈/a〉
    Keywords: Bacterial Proteins/biosynthesis/*metabolism ; *Circadian Rhythm ; Circadian Rhythm Signaling Peptides and Proteins ; Darkness ; Feedback, Physiological ; Light ; Mutation ; Operon ; Phosphorylation ; Protein Biosynthesis ; RNA, Bacterial/metabolism ; RNA, Messenger/metabolism ; Recombinant Proteins/metabolism ; Synechococcus/*genetics/*metabolism ; Temperature ; Transcription, Genetic
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  • 2
    Publication Date: 2004-06-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beckman, Mary -- New York, N.Y. -- Science. 2004 Jun 25;304(5679):1888-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15218114" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Newborn ; Bedding and Linens ; *Behavior, Animal ; Female ; Male ; *Maternal Deprivation ; Mice ; *Mothers ; Mutation ; *Object Attachment ; Odors ; Receptors, Opioid, mu/genetics/*physiology ; Vocalization, Animal
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  • 3
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-11-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, Jean -- New York, N.Y. -- Science. 2004 Nov 26;306(5701):1455-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15567822" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bone Marrow Cells/*cytology ; Bone Marrow Transplantation ; Cell Differentiation ; Cell Fusion ; Disease Progression ; Female ; Gastric Mucosa/chemistry/pathology ; Gastritis/microbiology/*pathology ; Helicobacter Infections/*pathology ; *Helicobacter felis ; Male ; Mice ; Mice, Inbred C57BL ; Stem Cells/*cytology ; Stomach Neoplasms/*pathology
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  • 4
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-06-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cohen, Jon -- New York, N.Y. -- Science. 2004 Jun 25;304(5679):1934.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15218139" target="_blank"〉PubMed〈/a〉
    Keywords: Asia/epidemiology ; Computer Simulation ; Condoms ; *Disease Outbreaks ; Female ; HIV Infections/*epidemiology/prevention & control/transmission ; Homosexuality, Male ; Humans ; Male ; *Models, Statistical ; Prevalence ; Prostitution ; Risk Factors ; Sexual Behavior ; Substance Abuse, Intravenous
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  • 5
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-07-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, Jean -- New York, N.Y. -- Science. 2004 Jul 16;305(5682):328.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15256651" target="_blank"〉PubMed〈/a〉
    Keywords: Analgesics, Opioid/pharmacology ; Brain/metabolism ; Catechol O-Methyltransferase/chemistry/genetics/metabolism ; Emotions ; Female ; Genetic Predisposition to Disease ; Humans ; Male ; Opioid Peptides/metabolism ; Pain/genetics/*physiopathology/*psychology ; Receptor, Melanocortin, Type 1/genetics/physiology ; Temporomandibular Joint Disorders/physiopathology
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  • 6
    Publication Date: 2004-01-06
    Description: MDM2 binds the p53 tumor suppressor protein with high affinity and negatively modulates its transcriptional activity and stability. Overexpression of MDM2, found in many human tumors, effectively impairs p53 function. Inhibition of MDM2-p53 interaction can stabilize p53 and may offer a novel strategy for cancer therapy. Here, we identify potent and selective small-molecule antagonists of MDM2 and confirm their mode of action through the crystal structures of complexes. These compounds bind MDM2 in the p53-binding pocket and activate the p53 pathway in cancer cells, leading to cell cycle arrest, apoptosis, and growth inhibition of human tumor xenografts in nude mice.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vassilev, Lyubomir T -- Vu, Binh T -- Graves, Bradford -- Carvajal, Daisy -- Podlaski, Frank -- Filipovic, Zoran -- Kong, Norman -- Kammlott, Ursula -- Lukacs, Christine -- Klein, Christian -- Fotouhi, Nader -- Liu, Emily A -- New York, N.Y. -- Science. 2004 Feb 6;303(5659):844-8. Epub 2004 Jan 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Discovery Oncology, Roche Research Center, Hoffmann-La Roche, Inc., Nutley, NJ 07110, USA. lyubomir.vassilev@roche.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14704432" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apoptosis/*drug effects ; Binding Sites ; Cell Cycle/drug effects ; Cell Division/*drug effects ; Cell Line ; Cell Line, Tumor ; Cell Survival/drug effects ; Crystallization ; Crystallography, X-Ray ; Cyclin-Dependent Kinase Inhibitor p21 ; Cyclins/metabolism ; Dose-Response Relationship, Drug ; Gene Expression ; Genes, p53 ; Humans ; Hydrophobic and Hydrophilic Interactions ; Imidazoles/chemistry/metabolism/*pharmacology ; Mice ; Mice, Nude ; Models, Molecular ; Molecular Weight ; NIH 3T3 Cells ; Neoplasm Transplantation ; Neoplasms, Experimental/drug therapy/metabolism/*pathology ; *Nuclear Proteins ; Phosphorylation ; Piperazines/chemistry/metabolism/*pharmacology ; Protein Conformation ; Proto-Oncogene Proteins/*antagonists & inhibitors/chemistry/metabolism ; Proto-Oncogene Proteins c-mdm2 ; Stereoisomerism ; Transplantation, Heterologous ; Tumor Suppressor Protein p53/*metabolism
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  • 7
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-03-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cohen, Jon -- New York, N.Y. -- Science. 2004 Mar 26;303(5666):1956.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15044774" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS Vaccines ; Female ; HIV Antibodies/*immunology ; HIV Envelope Protein gp120/chemistry/*immunology ; HIV Infections/*immunology/*transmission/virology ; HIV-1/*immunology ; Heterosexuality ; Humans ; Male ; Neutralization Tests ; Zambia
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  • 8
    Publication Date: 2004-01-24
    Description: Many birds perform visual signals during their learned songs, but little is known about the interrelationship between visual and vocal displays. We show here that male brown-headed cowbirds (Molothrus ater) synchronize the most elaborate wing movements of their display with atypically long silent periods in their song, potentially avoiding adverse biomechanical effects on sound production. Furthermore, expiratory effort for song is significantly reduced when cowbirds perform their wing display. These results show a close integration between vocal and visual displays and suggest that constraints and synergistic interactions between the motor patterns of multimodal signals influence the evolution of birdsong.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cooper, Brenton G -- Goller, Franz -- DC04390/DC/NIDCD NIH HHS/ -- DC05722/DC/NIDCD NIH HHS/ -- New York, N.Y. -- Science. 2004 Jan 23;303(5657):544-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of Utah, Salt Lake City, UT 84112, USA. cooper@biology.utah.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14739462" target="_blank"〉PubMed〈/a〉
    Keywords: Abdominal Muscles/physiology ; Air Sacs/physiology ; Animals ; Electromyography ; Male ; *Motor Activity ; Movement ; Posture ; Pressure ; Pulmonary Ventilation ; *Respiration ; Respiratory Muscles/physiology ; Songbirds/*physiology ; Video Recording ; *Vocalization, Animal ; Wings, Animal/*physiology
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  • 9
    Publication Date: 2004-11-06
    Description: Phosphorylation of the human histone variant H2A.X and H2Av, its homolog in Drosophila melanogaster, occurs rapidly at sites of DNA double-strand breaks. Little is known about the function of this phosphorylation or its removal during DNA repair. Here, we demonstrate that the Drosophila Tip60 (dTip60) chromatin-remodeling complex acetylates nucleosomal phospho-H2Av and exchanges it with an unmodified H2Av. Both the histone acetyltransferase dTip60 as well as the adenosine triphosphatase Domino/p400 catalyze the exchange of phospho-H2Av. Thus, these data reveal a previously unknown mechanism for selective histone exchange that uses the concerted action of two distinct chromatin-remodeling enzymes within the same multiprotein complex.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kusch, Thomas -- Florens, Laurence -- Macdonald, W Hayes -- Swanson, Selene K -- Glaser, Robert L -- Yates, John R 3rd -- Abmayr, Susan M -- Washburn, Michael P -- Workman, Jerry L -- New York, N.Y. -- Science. 2004 Dec 17;306(5704):2084-7. Epub 2004 Nov 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Stowers Institute for Medical Research, 1000 East 50th Street, Kansas City, MO 64110, USA. tnk@stowers-institute.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15528408" target="_blank"〉PubMed〈/a〉
    Keywords: Acetyl Coenzyme A/metabolism ; Acetylation ; Acetyltransferases/genetics/*metabolism ; Adenosine Triphosphatases/metabolism ; Animals ; Cell Line ; *DNA Damage ; DNA Repair ; Dimerization ; Drosophila Proteins/genetics/metabolism ; Drosophila melanogaster/embryology/genetics/*metabolism ; Embryo, Nonmammalian/metabolism ; Histone Acetyltransferases ; Histones/*metabolism ; Multiprotein Complexes/*metabolism ; Nucleosomes/*metabolism ; Phosphorylation ; RNA Interference ; Recombinant Proteins/metabolism ; Transcription Factors/metabolism
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  • 10
    Publication Date: 2004-10-16
    Description: When humans are offered the choice between rewards available at different points in time, the relative values of the options are discounted according to their expected delays until delivery. Using functional magnetic resonance imaging, we examined the neural correlates of time discounting while subjects made a series of choices between monetary reward options that varied by delay to delivery. We demonstrate that two separate systems are involved in such decisions. Parts of the limbic system associated with the midbrain dopamine system, including paralimbic cortex, are preferentially activated by decisions involving immediately available rewards. In contrast, regions of the lateral prefrontal cortex and posterior parietal cortex are engaged uniformly by intertemporal choices irrespective of delay. Furthermore, the relative engagement of the two systems is directly associated with subjects' choices, with greater relative fronto-parietal activity when subjects choose longer term options.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McClure, Samuel M -- Laibson, David I -- Loewenstein, George -- Cohen, Jonathan D -- AG05842/AG/NIA NIH HHS/ -- MH065214/MH/NIMH NIH HHS/ -- MH132804/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2004 Oct 15;306(5695):503-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychology and Center for the Study of Brain, Mind, and Behavior, Princeton University, Princeton, NJ 08544, USA. smcclure@princeton.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15486304" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Basal Ganglia/physiology ; Brain Mapping ; *Decision Making ; Dopamine/physiology ; Female ; Frontal Lobe/physiology ; Humans ; Limbic System/*physiology ; Magnetic Resonance Imaging ; Male ; Parietal Lobe/*physiology ; Prefrontal Cortex/*physiology ; *Reward ; Time Factors
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  • 11
    Publication Date: 2004-12-04
    Description: Benzene is known to have toxic effects on the blood and bone marrow, but its impact at levels below the U.S. occupational standard of 1 part per million (ppm) remains uncertain. In a study of 250 workers exposed to benzene, white blood cell and platelet counts were significantly lower than in 140 controls, even for exposure below 1 ppm in air. Progenitor cell colony formation significantly declined with increasing benzene exposure and was more sensitive to the effects of benzene than was the number of mature blood cells. Two genetic variants in key metabolizing enzymes, myeloperoxidase and NAD(P)H:quinone oxidoreductase, influenced susceptibility to benzene hematotoxicity. Thus, hematotoxicity from exposure to benzene occurred at air levels of 1 ppm or less and may be particularly evident among genetically susceptible subpopulations.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1256034/" 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/PMC1256034/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lan, Qing -- Zhang, Luoping -- Li, Guilan -- Vermeulen, Roel -- Weinberg, Rona S -- Dosemeci, Mustafa -- Rappaport, Stephen M -- Shen, Min -- Alter, Blanche P -- Wu, Yongji -- Kopp, William -- Waidyanatha, Suramya -- Rabkin, Charles -- Guo, Weihong -- Chanock, Stephen -- Hayes, Richard B -- Linet, Martha -- Kim, Sungkyoon -- Yin, Songnian -- Rothman, Nathaniel -- Smith, Martyn T -- P30ES01896/ES/NIEHS NIH HHS/ -- P30ES10126/ES/NIEHS NIH HHS/ -- P42 ES004705/ES/NIEHS NIH HHS/ -- P42ES04705/ES/NIEHS NIH HHS/ -- P42ES05948/ES/NIEHS NIH HHS/ -- R01ES06721/ES/NIEHS NIH HHS/ -- New York, N.Y. -- Science. 2004 Dec 3;306(5702):1774-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Cancer Epidemiology and Genetics, National Cancer Institute (NCI), National Institutes of Health (NIH), Department of Health and Human Services (DHHS), Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15576619" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Air Pollutants, Occupational/*toxicity ; Benzene/*toxicity ; Blood Platelets/*drug effects ; China ; Cross-Sectional Studies ; Cytochrome P-450 CYP2E1/genetics ; Female ; Genotype ; Hematopoiesis/drug effects ; Hematopoietic Stem Cells/*drug effects ; Hemoglobins/analysis ; Humans ; Inhalation Exposure/*adverse effects ; Leukocyte Count ; Leukocytes/*drug effects ; Lymphocyte Subsets/drug effects ; Male ; Matched-Pair Analysis ; Maximum Allowable Concentration ; NAD(P)H Dehydrogenase (Quinone)/genetics ; Occupational Exposure/*adverse effects ; Peroxidase/genetics ; Platelet Count ; Polymorphism, Single Nucleotide
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  • 12
    Publication Date: 2004-09-11
    Description: The turnover of Jun proteins, like that of other transcription factors, is regulated through ubiquitin-dependent proteolysis. Usually, such processes are regulated by extracellular stimuli through phosphorylation of the target protein, which allows recognition by F box-containing E3 ubiquitin ligases. In the case of c-Jun and JunB, we found that extracellular stimuli also modulate protein turnover by regulating the activity of an E3 ligase by means of its phosphorylation. Activation of the Jun amino-terminal kinase (JNK) mitogen-activated protein kinase cascade after T cell stimulation accelerated degradation of c-Jun and JunB through phosphorylation-dependent activation of the E3 ligase Itch. This pathway modulates cytokine production by effector T cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gao, Min -- Labuda, Tord -- Xia, Ying -- Gallagher, Ewen -- Fang, Deyu -- Liu, Yun-Cai -- Karin, Michael -- AI43477/AI/NIAID NIH HHS/ -- ES04151/ES/NIEHS NIH HHS/ -- ES06376/ES/NIEHS NIH HHS/ -- R21AI48542/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2004 Oct 8;306(5694):271-5. Epub 2004 Sep 9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Gene Regulation and Signal Transduction, Department of Pharmacology, School of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0723, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15358865" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD28/immunology ; CD4-Positive T-Lymphocytes/immunology/*metabolism ; Interferon-gamma/metabolism ; Interleukins/metabolism ; Lymphocyte Activation ; *MAP Kinase Kinase Kinase 1 ; MAP Kinase Kinase Kinases/genetics/metabolism ; Mice ; Mitogen-Activated Protein Kinase 8 ; Mitogen-Activated Protein Kinase 9 ; Mitogen-Activated Protein Kinases/*metabolism ; Phosphorylation ; Proto-Oncogene Proteins c-jun/genetics/*metabolism ; RNA, Messenger/genetics/metabolism ; Receptors, Antigen, T-Cell/immunology ; Recombinant Fusion Proteins/metabolism ; T-Lymphocytes/immunology/*metabolism ; Th2 Cells/cytology/immunology/metabolism ; Ubiquitin/metabolism ; Ubiquitin-Protein Ligases/*metabolism
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  • 13
    Publication Date: 2004-04-24
    Description: The mechanisms controlling axon guidance are of fundamental importance in understanding brain development. Growing corticospinal and somatosensory axons cross the midline in the medulla to reach their targets and thus form the basis of contralateral motor control and sensory input. The motor and sensory projections appeared uncrossed in patients with horizontal gaze palsy with progressive scoliosis (HGPPS). In patients affected with HGPPS, we identified mutations in the ROBO3 gene, which shares homology with roundabout genes important in axon guidance in developing Drosophila, zebrafish, and mouse. Like its murine homolog Rig1/Robo3, but unlike other Robo proteins, ROBO3 is required for hindbrain axon midline crossing.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1618874/" 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/PMC1618874/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jen, Joanna C -- Chan, Wai-Man -- Bosley, Thomas M -- Wan, Jijun -- Carr, Janai R -- Rub, Udo -- Shattuck, David -- Salamon, Georges -- Kudo, Lili C -- Ou, Jing -- Lin, Doris D M -- Salih, Mustafa A M -- Kansu, Tulay -- Al Dhalaan, Hesham -- Al Zayed, Zayed -- MacDonald, David B -- Stigsby, Bent -- Plaitakis, Andreas -- Dretakis, Emmanuel K -- Gottlob, Irene -- Pieh, Christina -- Traboulsi, Elias I -- Wang, Qing -- Wang, Lejin -- Andrews, Caroline -- Yamada, Koki -- Demer, Joseph L -- Karim, Shaheen -- Alger, Jeffry R -- Geschwind, Daniel H -- Deller, Thomas -- Sicotte, Nancy L -- Nelson, Stanley F -- Baloh, Robert W -- Engle, Elizabeth C -- DC00162/DC/NIDCD NIH HHS/ -- DC05524/DC/NIDCD NIH HHS/ -- EY12498/EY/NEI NIH HHS/ -- EY13583/EY/NEI NIH HHS/ -- EY15298/EY/NEI NIH HHS/ -- EY15311/EY/NEI NIH HHS/ -- MH60233/MH/NIMH NIH HHS/ -- P30 HD 18655/HD/NICHD NIH HHS/ -- R01 EY008313/EY/NEI NIH HHS/ -- R01 EY008313-14/EY/NEI NIH HHS/ -- R01 HL066251/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2004 Jun 4;304(5676):1509-13. Epub 2004 Apr 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, University of California, Los Angeles, CA 90095, USA. jjen@ucla.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15105459" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Alternative Splicing ; Amino Acid Motifs ; Amino Acid Sequence ; Axons/*physiology ; Evoked Potentials, Motor ; Evoked Potentials, Somatosensory ; Female ; Functional Laterality ; Genetic Linkage ; Humans ; In Situ Hybridization ; Magnetic Resonance Imaging ; Male ; Medulla Oblongata/growth & development/pathology ; Microsatellite Repeats ; Molecular Sequence Data ; Morphogenesis ; Mutation ; Neural Pathways ; Ophthalmoplegia/*genetics/pathology/physiopathology ; Pedigree ; Protein Structure, Tertiary ; Receptors, Immunologic/chemistry/*genetics/*metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; Rhombencephalon/*growth & development/pathology ; Scoliosis/*genetics/pathology/physiopathology ; Sequence Analysis, DNA ; Syndrome
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  • 14
    Publication Date: 2004-06-26
    Description: A honey bee colony is characterized by high genetic diversity among its workers, generated by high levels of multiple mating by its queen. Few clear benefits of this genetic diversity are known. Here we show that brood nest temperatures in genetically diverse colonies (i.e., those sired by several males) tend to be more stable than in genetically uniform ones (i.e., those sired by one male). One reason this increased stability arises is because genetically determined diversity in workers' temperature response thresholds modulates the hive-ventilating behavior of individual workers, preventing excessive colony-level responses to temperature fluctuations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jones, Julia C -- Myerscough, Mary R -- Graham, Sonia -- Oldroyd, Benjamin P -- New York, N.Y. -- Science. 2004 Jul 16;305(5682):402-4. Epub 2004 Jun 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Biological Sciences, Macleay Building A12, University of Sydney, NSW 2006, Australia. jjones@bio.usyd.edu.au〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15218093" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bees/genetics/*physiology ; Behavior, Animal ; Biological Evolution ; Body Temperature Regulation ; Female ; *Genetic Variation ; Homeostasis ; Male ; Selection, Genetic ; Sexual Behavior, Animal ; Temperature
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  • 15
    Publication Date: 2004-02-07
    Description: Stromal cells can have a significant impact on the carcinogenic process in adjacent epithelia. The role of transforming growth factor-beta (TGF-beta) signaling in such epithelial-mesenchymal interactions was determined by conditional inactivation of the TGF-beta type II receptor gene in mouse fibroblasts (Tgfbr2fspKO). The loss of TGF-beta responsiveness in fibroblasts resulted in intraepithelial neoplasia in prostate and invasive squamous cell carcinoma of the forestomach, both associated with an increased abundance of stromal cells. Activation of paracrine hepatocyte growth factor (HGF) signaling was identified as one possible mechanism for stimulation of epithelial proliferation. Thus, TGF-beta signaling in fibroblasts modulates the growth and oncogenic potential of adjacent epithelia in selected tissues.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bhowmick, Neil A -- Chytil, Anna -- Plieth, David -- Gorska, Agnieszka E -- Dumont, Nancy -- Shappell, Scott -- Washington, M Kay -- Neilson, Eric G -- Moses, Harold L -- AR41943/AR/NIAMS NIH HHS/ -- CA102162/CA/NCI NIH HHS/ -- CA68485/CA/NCI NIH HHS/ -- CA85492/CA/NCI NIH HHS/ -- DK46282/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2004 Feb 6;303(5659):848-51.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cancer Biology, Vanderbilt University School of Medicine, Nashville, TN 37232, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14764882" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carcinoma, Squamous Cell/etiology/metabolism/pathology ; Cell Division ; *Cell Transformation, Neoplastic ; Cells, Cultured ; Epithelial Cells/*physiology ; Female ; Fibroblasts/*physiology ; Hepatocyte Growth Factor/metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Mice, Transgenic ; Neoplasms, Glandular and Epithelial/*etiology/metabolism/pathology ; Prostate/cytology/metabolism/pathology ; Prostatic Intraepithelial Neoplasia/etiology/metabolism/pathology ; Protein-Serine-Threonine Kinases ; Proto-Oncogene Proteins c-met/metabolism ; Receptors, Transforming Growth Factor beta/genetics/metabolism ; Recombination, Genetic ; *Signal Transduction ; Stomach/cytology/metabolism/pathology ; Stomach Neoplasms/etiology/metabolism/pathology ; Stromal Cells/*physiology ; Transforming Growth Factor beta/*physiology
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  • 16
    Publication Date: 2004-10-30
    Description: The prefrontal cortex is a higher brain region that regulates thought, behavior, and emotion using representational knowledge, operations often referred to as working memory. We tested the influence of protein kinase C (PKC) intracellular signaling on prefrontal cortical cognitive function and showed that high levels of PKC activity in prefrontal cortex, as seen for example during stress exposure, markedly impair behavioral and electrophysiological measures of working memory. These data suggest that excessive PKC activation can disrupt prefrontal cortical regulation of behavior and thought, possibly contributing to signs of prefrontal cortical dysfunction such as distractibility, impaired judgment, impulsivity, and thought disorder.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Birnbaum, S G -- Yuan, P X -- Wang, M -- Vijayraghavan, S -- Bloom, A K -- Davis, D J -- Gobeske, K T -- Sweatt, J D -- Manji, H K -- Arnsten, A F T -- AG06036/AG/NIA NIH HHS/ -- P50 MH068789/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2004 Oct 29;306(5697):882-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, Yale Medical School, 333 Cedar Street, New Haven, CT 06520-8001, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15514161" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenergic alpha-Agonists/pharmacology ; Alkaloids ; Animals ; Benzophenanthridines ; Carbolines/pharmacology ; Electrophysiology ; Enzyme Activation ; Female ; Imidazoles/pharmacology ; Lithium Carbonate/pharmacology ; Macaca mulatta ; Male ; Memory/drug effects/*physiology ; Neurons/drug effects/physiology ; Phenanthridines/pharmacology ; Prefrontal Cortex/enzymology/*physiology ; Protein Kinase C/antagonists & inhibitors/*metabolism ; Rats ; Rats, Sprague-Dawley ; Receptors, Adrenergic, alpha-1/physiology ; Signal Transduction ; Stress, Physiological/physiopathology ; Tetradecanoylphorbol Acetate/pharmacology ; Valproic Acid/pharmacology
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  • 17
    Publication Date: 2004-07-17
    Description: For seasonally breeding vertebrates, reproductive cycling is often coupled with changes in vocalizations that function in courtship and territoriality. Less is known about changes in auditory sensitivity to those vocalizations. Here, we show that nonreproductive female midshipman fish treated with either testosterone or 17beta-estradiol exhibit an increase in the degree of temporal encoding of the frequency content of male vocalizations by the inner ear that mimics the reproductive female's auditory phenotype. This sensory plasticity provides an adaptable mechanism that enhances coupling between sender and receiver in vocal communication.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sisneros, Joseph A -- Forlano, Paul M -- Deitcher, David L -- Bass, Andrew H -- 1F32DC00445/DC/NIDCD NIH HHS/ -- 5T32MH15793/MH/NIMH NIH HHS/ -- DC00092/DC/NIDCD NIH HHS/ -- New York, N.Y. -- Science. 2004 Jul 16;305(5682):404-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA. sisneros@u.washington.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15256672" target="_blank"〉PubMed〈/a〉
    Keywords: Acoustic Stimulation ; Adaptation, Physiological ; Animals ; Auditory Threshold ; Batrachoidiformes/*physiology ; Estradiol/blood/*pharmacology ; Estrogen Receptor alpha ; Female ; Hair Cells, Auditory/physiology ; Hearing/*physiology ; Male ; Neurons, Afferent/drug effects/*physiology ; Phenotype ; Random Allocation ; Receptors, Estrogen/genetics/metabolism ; Reproduction ; Saccule and Utricle/drug effects/*innervation/physiology ; Seasons ; Sexual Behavior, Animal ; Testosterone/blood/*pharmacology ; Vestibulocochlear Nerve/physiology ; *Vocalization, Animal
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  • 18
    Publication Date: 2004-02-07
    Description: Prefrontal neurons engaged by working memory tasks express a sequence of phasic and tonic activations linked to a train of sensory, mnemonic, and response-related events. Here, we report that the dopamine D2 receptor selectively modulates the neural activities associated with memory-guided saccades in oculomotor delayed-response tasks yet has little or no effect on the persistent mnemonic-related activity, which is instead modulated by D1 receptors. This associates the D2 receptor with a specific component of working memory circuitry and fractionates the modulatory effects of D1 and D2 receptors on the neural machinery of a cognitive process.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, Min -- Vijayraghavan, Susheel -- Goldman-Rakic, Patricia S -- P50 MH068789/MH/NIMH NIH HHS/ -- P50 MH44866/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2004 Feb 6;303(5659):853-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, Yale University School of Medicine, New Haven, CT 06510, USA. min.wang@yale.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14764884" target="_blank"〉PubMed〈/a〉
    Keywords: 2,3,4,5-Tetrahydro-7,8-dihydroxy-1-phenyl-1H-3-benzazepine/pharmacology ; Animals ; Benzazepines/pharmacology ; Cues ; Dopamine Agonists/pharmacology ; Dopamine Antagonists/pharmacology ; Dopamine D2 Receptor Antagonists ; Dose-Response Relationship, Drug ; Electrophysiology ; Macaca mulatta ; Male ; Memory/*physiology ; Neurons/*physiology ; Prefrontal Cortex/*physiology ; Psychomotor Performance ; Quinpirole/pharmacology ; Raclopride/pharmacology ; Receptors, Dopamine D1/agonists/antagonists & inhibitors/metabolism ; Receptors, Dopamine D2/agonists/*metabolism ; Reward ; Saccades ; Salicylamides/pharmacology
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  • 19
    Publication Date: 2004-02-21
    Description: Our ability to have an experience of another's pain is characteristic of empathy. Using functional imaging, we assessed brain activity while volunteers experienced a painful stimulus and compared it to that elicited when they observed a signal indicating that their loved one--present in the same room--was receiving a similar pain stimulus. Bilateral anterior insula (AI), rostral anterior cingulate cortex (ACC), brainstem, and cerebellum were activated when subjects received pain and also by a signal that a loved one experienced pain. AI and ACC activation correlated with individual empathy scores. Activity in the posterior insula/secondary somatosensory cortex, the sensorimotor cortex (SI/MI), and the caudal ACC was specific to receiving pain. Thus, a neural response in AI and rostral ACC, activated in common for "self" and "other" conditions, suggests that the neural substrate for empathic experience does not involve the entire "pain matrix." We conclude that only that part of the pain network associated with its affective qualities, but not its sensory qualities, mediates empathy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Singer, Tania -- Seymour, Ben -- O'Doherty, John -- Kaube, Holger -- Dolan, Raymond J -- Frith, Chris D -- New York, N.Y. -- Science. 2004 Feb 20;303(5661):1157-62.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wellcome Department of Imaging Neuroscience, Institute of Neurology, University College of London, 12 Queen Square, WC1N 3AR London, UK. t.singer@fil.ion.ucl.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14976305" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Brain/*physiology ; Brain Mapping ; Brain Stem/physiology ; Cerebellum/physiology ; Cerebral Cortex/physiology ; Cues ; Electroshock ; *Empathy ; Female ; Gyrus Cinguli/physiology ; Humans ; Magnetic Resonance Imaging ; Male ; Mediodorsal Thalamic Nucleus/physiology ; Motor Cortex/physiology ; *Pain ; Prefrontal Cortex/physiology ; Somatosensory Cortex/physiology
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  • 20
    Publication Date: 2004-05-25
    Description: Tyrosine phosphorylation, regulated by protein tyrosine phosphatases (PTPs) and kinases (PTKs), is important in signaling pathways underlying tumorigenesis. A mutational analysis of the tyrosine phosphatase gene superfamily in human cancers identified 83 somatic mutations in six PTPs (PTPRF, PTPRG, PTPRT, PTPN3, PTPN13, PTPN14), affecting 26% of colorectal cancers and a smaller fraction of lung, breast, and gastric cancers. Fifteen mutations were nonsense, frameshift, or splice-site alterations predicted to result in truncated proteins lacking phosphatase activity. Five missense mutations in the most commonly altered PTP (PTPRT) were biochemically examined and found to reduce phosphatase activity. Expression of wild-type but not a mutant PTPRT in human cancer cells inhibited cell growth. These observations suggest that the mutated tyrosine phosphatases are tumor suppressor genes, regulating cellular pathways that may be amenable to therapeutic intervention.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, Zhenghe -- Shen, Dong -- Parsons, D Williams -- Bardelli, Alberto -- Sager, Jason -- Szabo, Steve -- Ptak, Janine -- Silliman, Natalie -- Peters, Brock A -- van der Heijden, Michiel S -- Parmigiani, Giovanni -- Yan, Hai -- Wang, Tian-Li -- Riggins, Greg -- Powell, Steven M -- Willson, James K V -- Markowitz, Sanford -- Kinzler, Kenneth W -- Vogelstein, Bert -- Velculescu, Victor E -- CA 43460/CA/NCI NIH HHS/ -- CA 57345/CA/NCI NIH HHS/ -- CA 62924/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2004 May 21;304(5674):1164-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Sidney Kimmel Comprehensive Cancer Center, Howard Hughes Medical Institute, Johns Hopkins University Medical Institutions, Baltimore, MD 21231, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15155950" target="_blank"〉PubMed〈/a〉
    Keywords: Catalytic Domain ; Cell Division ; Codon, Nonsense ; Colorectal Neoplasms/*enzymology/*genetics ; Computational Biology ; *DNA Mutational Analysis ; Exons ; Frameshift Mutation ; Genes, Tumor Suppressor ; Humans ; Kinetics ; Markov Chains ; *Mutation ; Mutation, Missense ; Nerve Tissue Proteins/chemistry/genetics/metabolism ; Phosphorylation ; Protein Tyrosine Phosphatase, Non-Receptor Type 13 ; Protein Tyrosine Phosphatase, Non-Receptor Type 3 ; Protein Tyrosine Phosphatases/chemistry/*genetics/metabolism ; Receptor-Like Protein Tyrosine Phosphatases, Class 5 ; Signal Transduction ; Transfection ; Tyrosine/*metabolism
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  • 21
    Publication Date: 2004-03-20
    Description: Many genes involved in Drosophila melanogaster innate immune processes have been identified, but whether naturally occurring polymorphism in these genes leads to variation in immune competence among wild flies has not been tested. We report here substantial variability among wild-derived D. melanogaster in the ability to suppress infection by a Gram-negative entomopathogen, Serratia marcescens. Variability in immune competence was significantly associated with nucleotide polymorphism in 16 innate immunity genes, corresponding primarily to pathogen recognition and intracellular signaling loci, and substantial epistasis was detected between intracellular signaling and antimicrobial peptide genes. Variation in these genes, therefore, seems to drive variability in immunocompetence among wild Drosophila.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lazzaro, Brian P -- Sceurman, Bonnielin K -- Clark, Andrew G -- AI46402/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2004 Mar 19;303(5665):1873-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Entomology, 4138 Comstock Hall, Cornell University, Ithaca, NY 14853, USA. bl89@cornell.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15031506" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Circadian Rhythm ; Colony Count, Microbial ; Drosophila Proteins/genetics/metabolism ; Drosophila melanogaster/*genetics/*immunology/microbiology ; Epistasis, Genetic ; Female ; *Genes, Insect ; Genetic Markers ; *Genetic Variation ; Immunity, Innate/genetics ; Immunocompetence/*genetics ; Male ; Phenotype ; Polymorphism, Genetic ; Serratia marcescens/growth & development/*immunology
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  • 22
    Publication Date: 2004-02-21
    Description: To achieve X-chromosome dosage compensation, organisms must distinguish X chromosomes from autosomes. We identified multiple, cis-acting regions that recruit the Caenorhabditis elegans dosage compensation complex (DCC) through a search for regions of X that bind the complex when detached from X. The DCC normally assembles along the entire X chromosome, but not all detached regions recruit the complex, despite having genes known to be dosage compensated on the native X. Thus, the DCC binds first to recruitment sites, then spreads to neighboring X regions to accomplish chromosome-wide gene repression. From a large chromosomal domain, we defined a 793-base pair fragment that functions in vivo as an X-recognition element to recruit the DCC.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Csankovszki, Gyorgyi -- McDonel, Patrick -- Meyer, Barbara J -- F32-GM065007/GM/NIGMS NIH HHS/ -- R37-GM30702/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2004 Feb 20;303(5661):1182-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720-3204, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14976312" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Genetically Modified ; Base Sequence ; Binding Sites ; Caenorhabditis elegans/*genetics/metabolism ; Caenorhabditis elegans Proteins/*metabolism ; Carrier Proteins/metabolism ; Chromosomes/metabolism ; Cosmids ; DNA-Binding Proteins/metabolism ; Disorders of Sex Development ; *Dosage Compensation, Genetic ; Female ; In Situ Hybridization, Fluorescence ; Male ; Models, Genetic ; Molecular Sequence Data ; Nuclear Proteins/metabolism ; Repetitive Sequences, Nucleic Acid ; X Chromosome/*metabolism
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  • 23
    Publication Date: 2004-11-30
    Description: When exposed to increased dissolved solute in their environment (hyperosmotic stress), all eukaryotic cells respond by rapidly activating a conserved mitogen-activated protein kinase cascade, known in budding yeast Saccharomyces cerevisiae as the high osmolarity glycerol (HOG) pathway. Intensive genetic and biochemical analysis in this organism has revealed the presumptive osmosensors, downstream signaling components, and metabolic and transcriptional changes that allow cells to cope with this stressful condition. These findings have had direct application to understanding stress sensing and control of transcription by stress-activated mitogen-activated protein kinases in mammalian cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Westfall, Patrick J -- Ballon, Daniel R -- Thorner, Jeremy -- GM-21841/GM/NIGMS NIH HHS/ -- GM-68343/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2004 Nov 26;306(5701):1511-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biochemistry and Molecular Biology, Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720-3202, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15567851" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Nucleus/metabolism ; GTPase-Activating Proteins/metabolism ; Glycerol/*metabolism ; Intracellular Signaling Peptides and Proteins ; *MAP Kinase Signaling System ; Membrane Proteins/metabolism ; Mitogen-Activated Protein Kinase Kinases/metabolism ; Mitogen-Activated Protein Kinases/*metabolism ; Osmolar Concentration ; Phosphorylation ; Protein Kinases/metabolism ; Saccharomyces cerevisiae/genetics/*metabolism ; Saccharomyces cerevisiae Proteins/*metabolism ; Transcription Factors/metabolism ; Transcription, Genetic
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  • 24
    Publication Date: 2004-06-26
    Description: Endogenous opioid binding to micro receptors is hypothesized to mediate natural rewards and has been proposed to be the basis of infant attachment behavior. Here, we report that micro-opioid receptor knockout mouse pups emit fewer ultrasonic vocalizations when removed from their mothers but not when exposed to cold or male mice odors. Moreover these knockout pups do not show a preference toward their mothers' cues and do not show ultrasonic calls potentiation after brief maternal exposure. Results from this study may indicate a molecular mechanism for diseases characterized by deficits in attachment behavior, such as autism or reactive attachment disorder.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Moles, Anna -- Kieffer, Brigitte L -- D'Amato, Francesca R -- New York, N.Y. -- Science. 2004 Jun 25;304(5679):1983-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Consiglio Nazionale delle Ricerche Institute of Neuroscience, Psychobiology and Psychopharmacology, Viale Marx 43, 00137 Roma, Italy.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15218152" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Newborn ; Bedding and Linens ; *Behavior, Animal ; Cold Temperature ; Cues ; Female ; Genotype ; Male ; Maternal Behavior ; *Maternal Deprivation ; Mice ; Mice, Knockout ; *Mothers ; Mutation ; *Object Attachment ; Odors ; Receptors, Opioid, mu/genetics/*physiology ; Reward ; Vocalization, Animal
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  • 25
    Publication Date: 2004-05-15
    Description: Although the ability of engrafted stem cells to regenerate tissue has received much attention, the molecular mechanisms controlling regeneration are poorly understood. In the Drosophila male germline, local activation of the Janus kinase-signal transducer and activator of transcription (Jak-STAT) pathway maintains stem cells; germline stem cells lacking Jak-STAT signaling differentiate into spermatogonia without self-renewal. By conditionally manipulating Jak-STAT signaling, we find that spermatogonia that have initiated differentiation and are undergoing limited mitotic (transit-amplifying) divisions can repopulate the niche and revert to stem cell identity. Thus, in the appropriate microenvironment, transit-amplifying cells dedifferentiate, becoming functional stem cells during tissue regeneration.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brawley, Crista -- Matunis, Erika -- R01HD40307/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 2004 May 28;304(5675):1331-4. Epub 2004 May 13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, 725 North Wolfe Street, 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/15143218" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Differentiation ; Cell Division ; DNA-Binding Proteins/metabolism ; Drosophila/*physiology ; *Drosophila Proteins ; Germ Cells/cytology/*physiology ; Male ; Mitosis ; Protein-Tyrosine Kinases/metabolism ; *Regeneration ; STAT Transcription Factors ; Signal Transduction ; Spermatocytes/physiology ; Spermatogonia/*cytology/*physiology ; Stem Cells/cytology/*physiology ; Testis/cytology ; Trans-Activators/metabolism
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  • 26
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-12-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Davis, Mark A -- New York, N.Y. -- Science. 2004 Dec 10;306(5703):1891.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15591186" target="_blank"〉PubMed〈/a〉
    Keywords: *Awards and Prizes ; Female ; Humans ; Male ; Men ; *National Institutes of Health (U.S.) ; *Prejudice ; United States ; *Women
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  • 27
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-12-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stein, Zena -- Susser, Mervyn -- New York, N.Y. -- Science. 2004 Dec 10;306(5703):1890; author reply 1890.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15597431" target="_blank"〉PubMed〈/a〉
    Keywords: Anti-HIV Agents/*administration & dosage/pharmacology/therapeutic use ; *Condoms ; Double-Blind Method ; Female ; HIV Infections/*prevention & control/*transmission ; Humans ; Male ; National Institutes of Health (U.S.) ; Patient Selection ; Placebos ; Randomized Controlled Trials as Topic/*ethics ; United States
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  • 28
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-12-25
    Description: Diving mosasaurs, plesiosaurs, and humans develop dysbaric osteonecrosis from end-artery nitrogen embolism ("the bends") in certain bones. Sixteen sperm whales from calves to large adults showed a size-related development of osteonecrosis in chevron and rib bone articulations, deltoid crests, and nasal bones. Occurrence in animals from the Pacific and Atlantic oceans over 111 years made a pathophysiological diagnosis of dysbarism most likely. Decompression avoidance therefore may constrain diving behavior. This suggests why some deep-diving mammals show periodic shallow-depth activity and why gas emboli are found in animals driven to surface precipitously by acoustic stressors such as mid-frequency sonar systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Moore, Michael J -- Early, Greg A -- New York, N.Y. -- Science. 2004 Dec 24;306(5705):2215.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA. mmoore@whoi.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15618509" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Atlantic Ocean ; Body Size ; Bone Density ; Bone Remodeling ; Bone and Bones/*pathology ; Decompression Sickness/complications/pathology/*veterinary ; *Diving ; Female ; Male ; Osteonecrosis/etiology/pathology/*veterinary ; Pacific Ocean ; *Whales/anatomy & histology/physiology
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  • 29
    Publication Date: 2004-07-24
    Description: The hippocampus has differentiated into an extensively connected recurrent stage (CA3) followed by a feed-forward stage (CA1). We examined the function of this structural differentiation by determining how cell ensembles in rat CA3 and CA1 generate representations of rooms with common spatial elements. In CA3, distinct subsets of pyramidal cells were activated in each room, regardless of the similarity of the testing enclosure. In CA1, the activated populations overlapped, and the overlap increased in similar enclosures. After exposure to a novel room, ensemble activity developed slower in CA3 than CA1, suggesting that the representations emerged independently.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Leutgeb, Stefan -- Leutgeb, Jill K -- Treves, Alessandro -- Moser, May-Britt -- Moser, Edvard I -- New York, N.Y. -- Science. 2004 Aug 27;305(5688):1295-8. Epub 2004 Jul 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for the Biology of Memory, Medical-Technical Research Centre, Norwegian University of Science and Technology, 7489 Trondheim, Norway.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15272123" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Brain Mapping ; Cues ; Electrodes, Implanted ; Entorhinal Cortex/physiology ; Hippocampus/cytology/*physiology ; Male ; *Memory ; Nerve Net/*physiology ; Neurons/*physiology ; Pyramidal Cells/*physiology ; Rats ; Rats, Long-Evans ; *Space Perception
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  • 30
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-04-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Morell, Virginia -- New York, N.Y. -- Science. 2004 Apr 16;304(5669):372.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15087514" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Color ; Decision Making ; Female ; Male ; Pigmentation ; *Sexual Behavior, Animal ; *Songbirds/anatomy & histology ; Vocalization, Animal
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  • 31
    Publication Date: 2004-02-21
    Description: PTEN is a tumor suppressor protein that dephosphorylates phosphatidylinositol 3,4,5 trisphosphate and antagonizes the phosphatidylinositol-3 kinase signaling pathway. We show here that PTEN can also inhibit cell migration through its C2 domain, independent of its lipid phosphatase activity. This activity depends on the protein phosphatase activity of PTEN and on dephosphorylation at a single residue, threonine(383). The ability of PTEN to control cell migration through its C2 domain is likely to be an important feature of its tumor suppressor activity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Raftopoulou, Myrto -- Etienne-Manneville, Sandrine -- Self, Annette -- Nicholls, Sarah -- Hall, Alan -- New York, N.Y. -- Science. 2004 Feb 20;303(5661):1179-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council Laboratory for Molecular Cell Biology and Cell Biology Unit, Cancer Research UK Oncogene and Signal Transduction Group, University College London, Gower Street, London WC1E 6BT, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14976311" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; COS Cells ; Catalysis ; Catalytic Domain ; Cell Line, Tumor ; Cell Movement/*physiology ; Cercopithecus aethiops ; Glioma ; Humans ; Mutation ; PTEN Phosphohydrolase ; Phosphoprotein Phosphatases/chemistry/metabolism ; Phosphoric Monoester Hydrolases/*chemistry/genetics/metabolism/*physiology ; Phosphorylation ; Phosphothreonine/metabolism ; Precipitin Tests ; Protein Structure, Tertiary ; Recombinant Proteins/pharmacology ; Sequence Deletion ; Transfection ; Tumor Suppressor Proteins/*chemistry/genetics/metabolism/*physiology
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  • 32
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-09-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dennis, Phillip A -- New York, N.Y. -- Science. 2004 Sep 3;305(5689):1401-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15353780" target="_blank"〉PubMed〈/a〉
    Keywords: Biomedical Research/*economics ; Breast Neoplasms/mortality ; Female ; Humans ; *Lung Neoplasms/mortality ; Male ; Prostatic Neoplasms/mortality ; *Research Support as Topic ; Tobacco
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  • 33
    Publication Date: 2004-03-27
    Description: Heterosexual transmission accounts for the majority of human immunodeficiency virus-1 (HIV-1) infections worldwide, yet the viral properties that determine transmission fitness or outgrowth have not been elucidated. Here we show, for eight heterosexual transmission pairs, that recipient viruses were monophyletic, encoding compact, glycan-restricted envelope glycoproteins. These viruses were also uniquely sensitive to neutralization by antibody from the transmitting partner. Thus, the exposure of neutralizing epitopes, which are lost in chronic infection because of immune escape, appears to be favored in the newly infected host. This reveals characteristics of the envelope glycoprotein that influence HIV-1 transmission and may have implications for vaccine design.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Derdeyn, Cynthia A -- Decker, Julie M -- Bibollet-Ruche, Frederic -- Mokili, John L -- Muldoon, Mark -- Denham, Scott A -- Heil, Marintha L -- Kasolo, Francis -- Musonda, Rosemary -- Hahn, Beatrice H -- Shaw, George M -- Korber, Bette T -- Allen, Susan -- Hunter, Eric -- AI-40951/AI/NIAID NIH HHS/ -- AI-51231/AI/NIAID NIH HHS/ -- N01-85338/PHS HHS/ -- U01-AI-41530/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2004 Mar 26;303(5666):2019-22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294 USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15044802" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS Vaccines ; Amino Acid Sequence ; Cohort Studies ; Epitopes/immunology ; Female ; Genes, env ; Glycosylation ; HIV Antibodies/*immunology ; HIV Envelope Protein gp120/chemistry/genetics/*immunology ; HIV Infections/*immunology/*transmission/virology ; HIV-1/genetics/*immunology/physiology ; Heterosexuality ; Humans ; Likelihood Functions ; Male ; Molecular Sequence Data ; Neutralization Tests ; Prospective Studies ; Viral Load ; Zambia
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  • 34
    Publication Date: 2004-06-12
    Description: During speech acquisition, children form quick and rough hypotheses about the meaning of a new word after only a single exposure-a process dubbed "fast mapping." Here we provide evidence that a border collie, Rico, is able to fast map. Rico knew the labels of over 200 different items. He inferred the names of novel items by exclusion learning and correctly retrieved those items right away as well as 4 weeks after the initial exposure. Fast mapping thus appears to be mediated by general learning and memory mechanisms also found in other animals and not by a language acquisition device that is special to humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaminski, Juliane -- Call, Josep -- Fischer, Julia -- New York, N.Y. -- Science. 2004 Jun 11;304(5677):1682-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Developmental and Comparative Psychology, Max-Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15192233" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Dogs ; *Learning ; Male ; *Memory ; Random Allocation ; *Vocabulary
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  • 35
    Publication Date: 2004-07-13
    Description: Numerous degenerative disorders are associated with elevated levels of prooxidants and declines in mitochondrial aconitase activity. Deficiency in the mitochondrial iron-binding protein frataxin results in diminished activity of various mitochondrial iron-sulfur proteins including aconitase. We found that aconitase can undergo reversible citrate-dependent modulation in activity in response to pro-oxidants. Frataxin interacted with aconitase in a citrate-dependent fashion, reduced the level of oxidant-induced inactivation, and converted inactive [3Fe-4S]1+ enzyme to the active [4Fe-4S]2+ form of the protein. Thus, frataxin is an iron chaperone protein that protects the aconitase [4Fe-4S]2+ cluster from disassembly and promotes enzyme reactivation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bulteau, Anne-Laure -- O'Neill, Heather A -- Kennedy, Mary Claire -- Ikeda-Saito, Masao -- Isaya, Grazia -- Szweda, Luke I -- AG-15709/AG/NIA NIH HHS/ -- AG-16339/AG/NIA NIH HHS/ -- NRSA 44748/NR/NINR NIH HHS/ -- New York, N.Y. -- Science. 2004 Jul 9;305(5681):242-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology and Biophysics, Case Western Reserve University, Cleveland, OH, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15247478" target="_blank"〉PubMed〈/a〉
    Keywords: Aconitate Hydratase/antagonists & inhibitors/*metabolism ; Animals ; Citric Acid/metabolism/pharmacology ; Dithiothreitol/metabolism ; Electron Spin Resonance Spectroscopy ; Enzyme Activation ; Ferrous Compounds/metabolism ; Hydrogen Peroxide/pharmacology ; Iron/*metabolism ; Iron-Binding Proteins/*metabolism ; Male ; Mitochondria/*metabolism ; Mitochondria, Heart/*metabolism ; Molecular Chaperones/*metabolism ; Oxidation-Reduction ; Oxidative Stress ; Oxygen Consumption ; Rats ; Rats, Sprague-Dawley ; Saccharomyces cerevisiae/*metabolism ; Saccharomyces cerevisiae Proteins/metabolism
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  • 36
    Publication Date: 2004-03-20
    Description: A key question in evolutionary genetics is whether shared genetic mechanisms underlie the independent evolution of similar phenotypes across phylogenetically divergent lineages. Here we show that in two classic examples of melanic plumage polymorphisms in birds, lesser snow geese (Anser c. caerulescens) and arctic skuas (Stercorarius parasiticus), melanism is perfectly associated with variation in the melanocortin-1 receptor (MC1R) gene. In both species, the degree of melanism correlates with the number of copies of variant MC1R alleles. Phylogenetic reconstructions of variant MC1R alleles in geese and skuas show that melanism is a derived trait that evolved in the Pleistocene.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mundy, Nicholas I -- Badcock, Nichola S -- Hart, Tom -- Scribner, Kim -- Janssen, Kirstin -- Nadeau, Nicola J -- New York, N.Y. -- Science. 2004 Mar 19;303(5665):1870-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Zoology, University of Cambridge, Cambridge CB2 3EJ, UK. nim21@cam.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15031505" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arctic Regions ; Biological Evolution ; Birds/anatomy & histology/*genetics/physiology ; Color ; *Feathers ; Female ; Geese/anatomy & histology/genetics/physiology ; Gene Frequency ; Haplotypes ; Male ; Melanins/*analysis ; Melanocytes/metabolism ; Phenotype ; Phylogeny ; Pigmentation/*genetics ; *Quantitative Trait, Heritable ; Receptor, Melanocortin, Type 1/chemistry/*genetics ; *Sexual Behavior, Animal
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  • 37
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-07-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Guy-Grand, Delphine -- Vassalli, Pierre -- New York, N.Y. -- Science. 2004 Jul 9;305(5681):185-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Unite de Recherche et d'Expertise Antivirale, INSERM U277, Institut Pasteur, 75724 Paris Cedex 15, France. guygrand@pasteur.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15247461" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; CD4-Positive T-Lymphocytes/immunology ; CD8-Positive T-Lymphocytes/immunology ; Cell Lineage ; DNA-Binding Proteins/metabolism ; Female ; Hematopoietic Stem Cells/immunology/physiology ; Immunity, Innate ; Immunity, Mucosal ; Interleukins/biosynthesis ; Intestinal Mucosa/cytology/*immunology ; Killer Cells, Natural/immunology ; Ligands ; Lymphoid Tissue/embryology/immunology ; Lymphotoxin-alpha/analysis ; Male ; Mice ; Mice, Nude ; Mice, Transgenic ; Models, Immunological ; Mutation ; Nuclear Receptor Subfamily 1, Group F, Member 3 ; Receptors, Antigen, T-Cell, alpha-beta/analysis/genetics ; Receptors, Antigen, T-Cell, gamma-delta/analysis ; Receptors, Retinoic Acid/genetics/metabolism ; Receptors, Thyroid Hormone/genetics/metabolism ; T-Lymphocyte Subsets/immunology ; T-Lymphocytes/*immunology ; Thymus Gland/cytology/*immunology
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  • 38
    Publication Date: 2004-10-23
    Description: Hypertension and dyslipidemia are risk factors for atherosclerosis and occur together more often than expected by chance. Although this clustering suggests shared causation, unifying factors remain unknown. We describe a large kindred with a syndrome including hypertension, hypercholesterolemia, and hypomagnesemia. Each phenotype is transmitted on the maternal lineage with a pattern indicating mitochondrial inheritance. Analysis of the mitochondrial genome of the maternal lineage identified a homoplasmic mutation substituting cytidine for uridine immediately 5' to the mitochondrial transfer RNA(Ile) anticodon. Uridine at this position is nearly invariate among transfer RNAs because of its role in stabilizing the anticodon loop. Given the known loss of mitochondrial function with aging, these findings may have implications for the common clustering of these metabolic disorders.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3033655/" 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/PMC3033655/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilson, Frederick H -- Hariri, Ali -- Farhi, Anita -- Zhao, Hongyu -- Petersen, Kitt Falk -- Toka, Hakan R -- Nelson-Williams, Carol -- Raja, Khalid M -- Kashgarian, Michael -- Shulman, Gerald I -- Scheinman, Steven J -- Lifton, Richard P -- MO1 RR-00125/RR/NCRR NIH HHS/ -- P50 HL-55007/HL/NHLBI NIH HHS/ -- R01 AG023686/AG/NIA NIH HHS/ -- R01 AG023686-01A1/AG/NIA NIH HHS/ -- R01 AG023686-02/AG/NIA NIH HHS/ -- R01 AG023686-03/AG/NIA NIH HHS/ -- R01 AG023686-04/AG/NIA NIH HHS/ -- R01 DK-49230/DK/NIDDK NIH HHS/ -- R01 DK049230/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2004 Nov 12;306(5699):1190-4. Epub 2004 Oct 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, 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/15498972" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aging ; Anticodon ; Body Mass Index ; Cluster Analysis ; Cytidine ; *Extrachromosomal Inheritance ; Female ; Humans ; Hypercholesterolemia/*genetics/physiopathology ; Hypertension/*genetics/physiopathology ; Magnesium/*blood/urine ; Male ; Metabolic Syndrome X/genetics ; Middle Aged ; Mitochondria/*genetics/metabolism ; Mitochondria, Muscle/metabolism/pathology ; Muscle Fibers, Skeletal/pathology ; *Mutation ; Pedigree ; Phenotype ; RNA/genetics ; RNA, Transfer, Ile/*genetics ; Syndrome ; Thymidine ; Uridine
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  • 39
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-10-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Muoio, Deborah M -- Newgard, Christopher B -- New York, N.Y. -- Science. 2004 Oct 15;306(5695):425-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Sarah W. Stedman Nutrition and Metabolism Center, 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/15486283" target="_blank"〉PubMed〈/a〉
    Keywords: Adipose Tissue/metabolism ; Animals ; Cells, Cultured ; DNA-Binding Proteins/genetics/metabolism ; Endoplasmic Reticulum/*metabolism ; Endoribonucleases ; Enzyme Activation ; Homeostasis ; Humans ; Insulin/*metabolism ; Insulin Receptor Substrate Proteins ; Insulin Resistance/*physiology ; Islets of Langerhans/metabolism ; Liver/metabolism ; Membrane Proteins/metabolism ; Mice ; Mitogen-Activated Protein Kinase 8 ; Mitogen-Activated Protein Kinases/*metabolism ; Muscle, Skeletal/metabolism ; Nuclear Proteins/genetics/metabolism ; Obesity/*metabolism ; Phosphoproteins/metabolism ; Phosphorylation ; Protein-Serine-Threonine Kinases/metabolism ; Signal Transduction ; Transcription Factors ; eIF-2 Kinase/metabolism
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  • 40
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-10-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hall, Alan -- New York, N.Y. -- Science. 2004 Oct 1;306(5693):65-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉MRC Laboratory for Molecular Cell Biology & Cell Biology Unit, University College, London WC1E 6BT, UK. alan.hall@ucl. ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15459376" target="_blank"〉PubMed〈/a〉
    Keywords: Actin Cytoskeleton/metabolism/virology ; Actins/metabolism ; Catenins ; Cell Adhesion Molecules/metabolism ; Cell Membrane/metabolism/virology ; Enzyme Activation ; Kinesin/metabolism ; Membrane Fusion ; Membrane Glycoproteins/genetics/metabolism ; Microtubules/metabolism ; Mutation ; Phosphoproteins/metabolism ; Phosphorylation ; Vaccinia virus/genetics/growth & development/*metabolism ; Viral Envelope Proteins/genetics/*metabolism ; Viral Structural Proteins/*metabolism ; src-Family Kinases/*metabolism
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  • 41
    Publication Date: 2004-10-23
    Description: Signaling by the transcription factor nuclear factor kappa B (NF-kappaB) involves its release from inhibitor kappa B (IkappaB) in the cytosol, followed by translocation into the nucleus. NF-kappaB regulation of IkappaBalpha transcription represents a delayed negative feedback loop that drives oscillations in NF-kappaB translocation. Single-cell time-lapse imaging and computational modeling of NF-kappaB (RelA) localization showed asynchronous oscillations following cell stimulation that decreased in frequency with increased IkappaBalpha transcription. Transcription of target genes depended on oscillation persistence, involving cycles of RelA phosphorylation and dephosphorylation. The functional consequences of NF-kappaB signaling may thus depend on number, period, and amplitude of oscillations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nelson, D E -- Ihekwaba, A E C -- Elliott, M -- Johnson, J R -- Gibney, C A -- Foreman, B E -- Nelson, G -- See, V -- Horton, C A -- Spiller, D G -- Edwards, S W -- McDowell, H P -- Unitt, J F -- Sullivan, E -- Grimley, R -- Benson, N -- Broomhead, D -- Kell, D B -- White, M R H -- New York, N.Y. -- Science. 2004 Oct 22;306(5696):704-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Cell Imaging, School of Biological Sciences, Bioscience Research Building, Crown Street, Liverpool, L69 7ZB, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15499023" target="_blank"〉PubMed〈/a〉
    Keywords: Active Transport, Cell Nucleus ; Cell Line, Tumor ; Cell Nucleus/metabolism ; Computer Simulation ; Cytoplasm/metabolism ; Etoposide/pharmacology ; Feedback, Physiological ; *Gene Expression Regulation ; HeLa Cells ; Humans ; I-kappa B Proteins/genetics/metabolism ; Models, Biological ; NF-kappa B/*metabolism ; Phosphorylation ; Recombinant Fusion Proteins/metabolism ; *Signal Transduction ; Transcription Factor RelA ; Transcription, Genetic ; Transfection ; Tumor Necrosis Factor-alpha/pharmacology
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  • 42
    Publication Date: 2004-01-24
    Description: Jun N-terminal kinases (JNKs) are essential for neuronal microtubule assembly and apoptosis. Phosphorylation of the activating protein 1 (AP1) transcription factor c-Jun, at multiple sites within its transactivation domain, is required for JNK-induced neurotoxicity. We report that in neurons the stability of c-Jun is regulated by the E3 ligase SCF(Fbw7), which ubiquitinates phosphorylated c-Jun and facilitates c-Jun degradation. Fbw7 depletion resulted in accumulation of phosphorylated c-Jun, stimulation of AP1 activity, and neuronal apoptosis. SCF(Fbw7) therefore antagonizes the apoptotic c-Jun-dependent effector arm of JNK signaling, allowing neurons to tolerate potentially neurotoxic JNK activity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nateri, Abdolrahman S -- Riera-Sans, Lluis -- Da Costa, Clive -- Behrens, Axel -- New York, N.Y. -- Science. 2004 Feb 27;303(5662):1374-8. Epub 2004 Jan 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Mammalian Genetics Laboratory, Cancer Research UK, London Research Institute, Lincoln's Inn Fields Laboratories, 44 Lincoln's Inn Fields, London WC2A 3PX, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14739463" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; *Apoptosis ; Base Sequence ; Cell Cycle Proteins/genetics/*metabolism ; Cell Line ; F-Box Proteins/genetics/*metabolism ; Humans ; JNK Mitogen-Activated Protein Kinases ; MAP Kinase Signaling System ; Mice ; Mitogen-Activated Protein Kinases/*metabolism ; Molecular Sequence Data ; Neurons/*physiology ; PC12 Cells ; Phosphorylation ; Proto-Oncogene Proteins c-jun/*metabolism ; RNA, Small Interfering/metabolism ; Rats ; Transcription Factor AP-1/metabolism ; Transfection ; Ubiquitin/metabolism ; Ubiquitin-Protein Ligases/genetics/*metabolism
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  • 43
    Publication Date: 2004-06-26
    Description: The nuclear factor-kappa B (NF-kappaB) family of transcription factors plays a seminal role in inflammation, apoptosis, development, and cancer. Modulation of NF-kappaB-mediated gene expression in response to diverse signals is coordinated by the IkappaB kinase (IKK) complex. We identified ELKS, an essential regulatory subunit of the IKK complex. Silencing ELKS expression by RNA interference blocked induced expression of NF-kappaB target genes, including the NF-kappaB inhibitor IkappaBalpha and proinflammatory genes such as cyclo-oxygenase 2 and interleukin 8. These cells were also not protected from apoptosis in response to cytokines. ELKS likely functions by recruiting IkappaBalpha to the IKK complex and thus serves a regulatory function for IKK activation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ducut Sigala, Jeanette L -- Bottero, Virginie -- Young, David B -- Shevchenko, Andrej -- Mercurio, Frank -- Verma, Inder M -- New York, N.Y. -- Science. 2004 Jun 25;304(5679):1963-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Salk Institute for Biological Sciences, 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/15218148" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing ; Animals ; Apoptosis ; Carrier Proteins/genetics/*metabolism ; Cell Line ; Cyclooxygenase 2 ; Gene Expression ; Genes, Reporter ; HeLa Cells ; Humans ; I-kappa B Kinase ; I-kappa B Proteins/genetics/metabolism ; Interleukin-1/pharmacology ; Interleukin-8/genetics ; Isoenzymes/genetics ; Membrane Proteins ; Mice ; Mice, Knockout ; Mitogen-Activated Protein Kinases/metabolism ; Mutation ; NF-kappa B/*metabolism ; Nerve Tissue Proteins/genetics/*metabolism ; Phosphorylation ; Precipitin Tests ; Prostaglandin-Endoperoxide Synthases/genetics ; Protein-Serine-Threonine Kinases/*metabolism ; RNA Interference ; Tumor Necrosis Factor-alpha/pharmacology
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  • 44
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-06-19
    Description: The Hedgehog (Hh) signaling pathway is intimately linked to cell growth and differentiation, with normal roles in embryonic pattern formation and adult tissue homeostasis and pathological roles in tumor initiation and growth. Recent advances in our understanding of Hh response have resulted from the identification of new pathway components and new mechanisms of action for old pathway components. The most striking new finding is that signal transmission from membrane to cytoplasm proceeds through recruitment, by the seven-transmembrane protein Smoothened, of an atypical kinesin, which routes pathway activation by interaction with other components of a complex that includes the latent zinc finger transcription factor, Ci.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lum, Lawrence -- Beachy, Philip A -- New York, N.Y. -- Science. 2004 Jun 18;304(5678):1755-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology and Genetics, Howard Hughes Medical Institute, 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/15205520" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Nucleus/metabolism ; Cytoplasm/metabolism ; DNA-Binding Proteins/metabolism ; Drosophila/metabolism ; Drosophila Proteins/*metabolism ; Gene Expression Regulation ; Hedgehog Proteins ; Kinesin/metabolism ; Mammals/metabolism ; Membrane Proteins/metabolism ; Models, Biological ; Phosphorylation ; Protein Transport ; Receptors, Cell Surface ; Receptors, G-Protein-Coupled/metabolism ; *Signal Transduction ; Trans-Activators/metabolism ; Transcription Factors
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  • 45
    Publication Date: 2004-01-31
    Description: Protein tyrosine kinases and phosphatases cooperate to regulate normal immune cell function. We examined the role of PEST domain-enriched tyrosine phosphatase (PEP) in regulating T cell antigen-receptor function during thymocyte development and peripheral T cell differentiation. Although normal naive T cell functions were retained in pep-deficient mice, effector/memory T cells demonstrated enhanced activation of Lck. In turn, this resulted in increased expansion and function of the effector/memory T cell pool, which was also associated with spontaneous development of germinal centers and elevated serum antibody levels. These results revealed a central role for PEP in negatively regulating specific aspects of T cell development and function.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hasegawa, Kiminori -- Martin, Flavius -- Huang, Guangming -- Tumas, Dan -- Diehl, Lauri -- Chan, Andrew C -- New York, N.Y. -- Science. 2004 Jan 30;303(5658):685-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology, Genentech, Inc., One DNA Way, South San Francisco, CA 94080, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14752163" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autoimmunity ; B-Lymphocytes/physiology ; CD4-Positive T-Lymphocytes/immunology/physiology ; CD8-Positive T-Lymphocytes/immunology/physiology ; Cell Cycle ; Gene Targeting ; Germinal Center/physiology ; Hydrogen-Ion Concentration ; Immunoglobulins/blood ; *Immunologic Memory ; Lymphocyte Activation ; Lymphocyte Count ; Lymphocyte Specific Protein Tyrosine Kinase p56(lck)/metabolism ; Mice ; Mice, Inbred BALB C ; Mice, Transgenic ; Phosphorylation ; Protein Tyrosine Phosphatase, Non-Receptor Type 12 ; Protein Tyrosine Phosphatases/genetics/*metabolism ; Receptors, Antigen, T-Cell/genetics/immunology ; Signal Transduction ; T-Lymphocyte Subsets/immunology ; T-Lymphocytes/*immunology/physiology
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  • 46
    Publication Date: 2004-08-07
    Description: The cascade of events that leads to vaccinia-induced actin polymerization requires Src-dependent tyrosine phosphorylation of the viral membrane protein A36R. We found that a localized outside-in signaling cascade induced by the viral membrane protein B5R is required to potently activate Src and induce A36R phosphorylation at the plasma membrane. In addition, Src-mediated phosphorylation of A36R regulated the ability of virus particles to recruit and release conventional kinesin. Thus, Src activity regulates the transition between cytoplasmic microtubule transport and actin-based motility at the plasma membrane.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Newsome, Timothy P -- Scaplehorn, Niki -- Way, Michael -- New York, N.Y. -- Science. 2004 Oct 1;306(5693):124-9. Epub 2004 Aug 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cell Motility Laboratory, Room 529, Cancer Research UK, London Research Institute, Lincoln's Inn Fields Laboratories, 44 Lincoln's Inn Fields, London WC2A 3PX, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15297625" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/*metabolism ; Animals ; Cell Line ; Cell Membrane/metabolism/virology ; Chickens ; Consensus Sequence ; Enzyme Activation ; HeLa Cells ; Humans ; Kinesin/metabolism ; Membrane Glycoproteins/chemistry/metabolism ; Microtubules/*metabolism ; Phosphorylation ; Phosphotyrosine/metabolism ; Recombinant Fusion Proteins/metabolism ; Vaccinia virus/genetics/*metabolism/physiology ; Viral Envelope Proteins/chemistry/metabolism ; Viral Structural Proteins/*metabolism ; Virion/metabolism ; src-Family Kinases/*metabolism
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  • 47
    Publication Date: 2004-05-08
    Description: Prostaglandin E2 (PGE2) is a crucial mediator of inflammatory pain sensitization. Here, we demonstrate that inhibition of a specific glycine receptor subtype (GlyR alpha3) by PGE2-induced receptor phosphorylation underlies central inflammatory pain sensitization. We show that GlyR alpha3 is distinctly expressed in superficial layers of the spinal cord dorsal horn. Mice deficient in GlyR alpha3 not only lack the inhibition of glycinergic neurotransmission by PGE2 seen in wild-type mice but also show a reduction in pain sensitization induced by spinal PGE2 injection or peripheral inflammation. Thus, GlyR alpha3 may provide a previously unrecognized molecular target in pain therapy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Harvey, Robert J -- Depner, Ulrike B -- Wassle, Heinz -- Ahmadi, Seifollah -- Heindl, Cornelia -- Reinold, Heiko -- Smart, Trevor G -- Harvey, Kirsten -- Schutz, Burkhard -- Abo-Salem, Osama M -- Zimmer, Andreas -- Poisbeau, Pierrick -- Welzl, Hans -- Wolfer, David P -- Betz, Heinrich -- Zeilhofer, Hanns Ulrich -- Muller, Ulrike -- New York, N.Y. -- Science. 2004 May 7;304(5672):884-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, The School of Pharmacy, London WC1N 1AX, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15131310" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cell Line ; Cyclic AMP-Dependent Protein Kinases/metabolism ; Dinoprostone/administration & dosage/*metabolism/pharmacology ; Female ; Freund's Adjuvant ; Glycine/metabolism ; Humans ; Inflammation/metabolism/*physiopathology ; Male ; Mice ; Mice, Knockout ; Molecular Sequence Data ; Neurons/metabolism ; Pain/*physiopathology ; Patch-Clamp Techniques ; Phosphorylation ; Posterior Horn Cells/*metabolism ; Receptors, Glycine/chemistry/genetics/*metabolism ; Signal Transduction ; Spinal Cord/*metabolism ; Synaptic Transmission ; Transfection ; Zymosan
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  • 48
    Publication Date: 2004-03-16
    Description: To what extent do all brains work alike during natural conditions? We explored this question by letting five subjects freely view half an hour of a popular movie while undergoing functional brain imaging. Applying an unbiased analysis in which spatiotemporal activity patterns in one brain were used to "model" activity in another brain, we found a striking level of voxel-by-voxel synchronization between individuals, not only in primary and secondary visual and auditory areas but also in association cortices. The results reveal a surprising tendency of individual brains to "tick collectively" during natural vision. The intersubject synchronization consisted of a widespread cortical activation pattern correlated with emotionally arousing scenes and regionally selective components. The characteristics of these activations were revealed with the use of an open-ended "reverse-correlation" approach, which inverts the conventional analysis by letting the brain signals themselves "pick up" the optimal stimuli for each specialized cortical area.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hasson, Uri -- Nir, Yuval -- Levy, Ifat -- Fuhrmann, Galit -- Malach, Rafael -- New York, N.Y. -- Science. 2004 Mar 12;303(5664):1634-40.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, Weizmann Institute of Science, Rehovot 76100, Israel.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15016991" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; *Attention ; Auditory Cortex/physiology ; Brain Mapping ; Cerebral Cortex/*physiology ; Emotions ; Face ; Female ; Humans ; Magnetic Resonance Imaging ; Male ; Middle Aged ; *Motion Pictures as Topic ; Occipital Lobe/physiology ; Photic Stimulation ; Temporal Lobe/physiology ; Vision, Ocular ; Visual Cortex/*physiology ; *Visual Perception
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  • 49
    Publication Date: 2004-02-14
    Description: Conflict monitoring by the anterior cingulate cortex (ACC) has been posited to signal a need for greater cognitive control, producing neural and behavioral adjustments. However, the very occurrence of behavioral adjustments after conflict has been questioned, along with suggestions that there is no direct evidence of ACC conflict-related activity predicting subsequent neural or behavioral adjustments in control. Using the Stroop color-naming task and controlling for repetition effects, we demonstrate that ACC conflict-related activity predicts both greater prefrontal cortex activity and adjustments in behavior, supporting a role of ACC conflict monitoring in the engagement of cognitive control.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kerns, John G -- Cohen, Jonathan D -- MacDonald, Angus W 3rd -- Cho, Raymond Y -- Stenger, V Andrew -- Carter, Cameron S -- New York, N.Y. -- Science. 2004 Feb 13;303(5660):1023-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychological Sciences, University of Missouri-Columbia, Columbia, MO 65211, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14963333" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Brain Mapping ; *Cognition ; *Conflict (Psychology) ; Cues ; Female ; Frontal Lobe/*physiology ; Gyrus Cinguli/*physiology ; Humans ; Magnetic Resonance Imaging ; Male ; Neuropsychological Tests ; Prefrontal Cortex/*physiology ; Reaction Time
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  • 50
    Publication Date: 2004-02-21
    Description: Adult stem cells offer the potential to treat many diseases through a combination of ex vivo genetic manipulation and autologous transplantation. Mesenchymal stem cells (MSCs, also referred to as marrow stromal cells) are adult stem cells that can be isolated as proliferating, adherent cells from bones. MSCs can differentiate into multiple cell types present in several tissues, including bone, fat, cartilage, and muscle, making them ideal candidates for a variety of cell-based therapies. Here, we have used adeno-associated virus vectors to disrupt dominant-negative mutant COL1A1 collagen genes in MSCs from individuals with the brittle bone disorder osteogenesis imperfecta, demonstrating successful gene targeting in adult human stem cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chamberlain, Joel R -- Schwarze, Ulrike -- Wang, Pei-Rong -- Hirata, Roli K -- Hankenson, Kurt D -- Pace, James M -- Underwood, Robert A -- Song, Kit M -- Sussman, Michael -- Byers, Peter H -- Russell, David W -- New York, N.Y. -- Science. 2004 Feb 20;303(5661):1198-201.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of Washington, Seattle, WA 98195-7720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14976317" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Bone Marrow Cells/physiology ; Cell Differentiation ; Cells, Cultured ; Collagen Type I/chemistry/*genetics/metabolism ; Dependovirus/genetics ; *Gene Targeting ; Genetic Therapy ; Genetic Vectors ; Humans ; Kanamycin Kinase/genetics ; Male ; Mesenchymal Stromal Cells/*physiology ; Mice ; Osteogenesis ; Osteogenesis Imperfecta/*genetics/*therapy ; Point Mutation ; Recombination, Genetic ; Stem Cell Transplantation
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  • 51
    Publication Date: 2004-04-10
    Description: In several areas of the macaque brain, neurons fire during delayed-response tasks at a rate determined by the value of the reward expected at the end of the trial. The activity of these neurons might be related to the value of the expected reward or to the degree of motivation induced by expectation of the reward. We describe results indicating that the nature of reward-dependent activity varies across areas. Neuronal activity in orbitofrontal cortex represents the value of the expected reward, whereas neuronal activity in premotor cortex reflects the degree of motivation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roesch, Matthew R -- Olson, Carl R -- EY08098/EY/NEI NIH HHS/ -- EY11831/EY/NEI NIH HHS/ -- MH45156/MH/NIMH NIH HHS/ -- P41RR03631/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2004 Apr 9;304(5668):307-10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for the Neural Basis of Cognition, Mellon Institute, Room 115, 4400 Fifth Avenue, Pittsburgh, PA 15213, USA. roesch@cnbc.cmu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15073380" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Cues ; Electrodes ; Frontal Lobe/*physiology ; Macaca mulatta ; Magnetic Resonance Imaging ; Male ; *Motivation ; Motor Cortex/physiology ; Neurons/*physiology ; Psychomotor Performance ; *Reward ; Saccades
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  • 52
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-06-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stone, Richard -- New York, N.Y. -- Science. 2004 Jun 25;304(5679):1889-91.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15218116" target="_blank"〉PubMed〈/a〉
    Keywords: *Archaeology ; Dental Enamel/chemistry ; England ; Humans ; Male ; Oxygen Isotopes/analysis ; *Paleodontology ; Strontium/analysis ; Wales
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  • 53
    Publication Date: 2004-09-09
    Description: Progress in gerontological research has been promoted through the use of numerous animal models, which have helped identify possible mechanisms of aging and age-related chronic diseases and evaluate possible interventions with potential relevance to human aging and disease. Further development of nonhuman primate models, particularly rhesus monkeys, could accelerate this progress, because their closer genetic relationship to humans produces a highly similar aging phenotype. Because the relatively long lives of primates increase the administrative and economic demands on research involving them, new emphasis has emerged on increasing the efficient use of these valuable resources through cooperative, interdisciplinary research.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roth, George S -- Mattison, Julie A -- Ottinger, Mary Ann -- Chachich, Mark E -- Lane, Mark A -- Ingram, Donald K -- New York, N.Y. -- Science. 2004 Sep 3;305(5689):1423-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Experimental Gerontology, Intramural Research Program, Gerontology Research Center, National Institute on Aging, National Institutes of Health, 5600 Nathan Shock Drive, Baltimore, MD 21224, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15353793" target="_blank"〉PubMed〈/a〉
    Keywords: *Aging ; Animals ; Biomarkers ; Caloric Restriction ; Chronic Disease ; Cross-Sectional Studies ; Disease Models, Animal ; Female ; Heart Diseases/physiopathology/therapy ; Humans ; Longitudinal Studies ; Macaca mulatta/*physiology ; Male ; *Models, Animal ; Neoplasms/physiopathology/therapy
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  • 54
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-12-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉York, John D -- Hunter, Tony -- New York, N.Y. -- Science. 2004 Dec 17;306(5704):2053-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology and Cancer Biology, Howard Hughes Medical Institute, Duke University Medical Center, Durham, NC 27710, USA. yorkj@duke.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15604398" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Membrane/metabolism ; Inositol/chemistry ; Inositol Phosphates/*metabolism ; Models, Biological ; Molecular Conformation ; Nuclear Proteins/*metabolism ; Phosphates/*metabolism ; Phosphatidylinositols/metabolism ; Phosphorylation ; Phosphotransferases (Phosphate Group Acceptor)/metabolism ; Proteins/*metabolism ; RNA-Binding Proteins/*metabolism ; Saccharomyces cerevisiae/metabolism ; Saccharomyces cerevisiae Proteins/*metabolism ; Second Messenger Systems ; Serine/metabolism ; *Signal Transduction
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  • 55
    Publication Date: 2004-07-03
    Description: When we look at our hands, we immediately know that they are part of our own body. This feeling of ownership of our limbs is a fundamental aspect of self-consciousness. We have studied the neuronal counterparts of this experience. A perceptual illusion was used to manipulate feelings of ownership of a rubber hand presented in front of healthy subjects while brain activity was measured by functional magnetic resonance imaging. The neural activity in the premotor cortex reflected the feeling of ownership of the hand. This suggests that multisensory integration in the premotor cortex provides a mechanism for bodily self-attribution.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ehrsson, H Henrik -- Spence, Charles -- Passingham, Richard E -- New York, N.Y. -- Science. 2004 Aug 6;305(5685):875-7. Epub 2004 Jul 1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wellcome Department of Imaging Neuroscience, Institute of Neurology, 12 Queen Square, London WC1N 3BG, UK. h.ehrsson@fil.ion.ucl.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15232072" target="_blank"〉PubMed〈/a〉
    Keywords: *Body Image ; Brain/physiology ; Brain Mapping ; Cerebellum/physiology ; Female ; Hand ; Humans ; Magnetic Resonance Imaging ; Male ; Motor Cortex/*physiology ; Neurons/*physiology ; Parietal Lobe/physiology ; Proprioception ; Time Factors ; Touch ; Vision, Ocular
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  • 56
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-12-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rubin, Vera -- New York, N.Y. -- Science. 2004 Dec 10;306(5703):1891.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15591185" target="_blank"〉PubMed〈/a〉
    Keywords: *Awards and Prizes ; Female ; Humans ; Male ; Men ; *Prejudice ; *Science ; *Women
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  • 57
    Publication Date: 2004-01-24
    Description: Mammalian sex chromosomes have undergone profound changes since evolving from ancestral autosomes. By examining retroposed genes in the human and mouse genomes, we demonstrate that, during evolution, the mammalian X chromosome has generated and recruited a disproportionately high number of functional retroposed genes, whereas the autosomes experienced lower gene turnover. Most autosomal copies originating from X-linked genes exhibited testis-biased expression. Such export is incompatible with mutational bias and is likely driven by natural selection to attain male germline function. However, the excess recruitment is consistent with a combination of both natural selection and mutational bias.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Emerson, J J -- Kaessmann, Henrik -- Betran, Esther -- Long, Manyuan -- GM-065429-01A1/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2004 Jan 23;303(5657):537-40.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ecology and Evolution, University of Chicago, Chicago, IL 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14739461" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Chromosomes, Human/genetics ; Chromosomes, Human, X/*genetics ; Chromosomes, Mammalian/genetics ; Computational Biology ; Dosage Compensation, Genetic ; Female ; Gene Expression Profiling ; Genes, Duplicate ; Genetic Linkage ; Genome ; Genome, Human ; Humans ; Introns ; Male ; Mice ; Monte Carlo Method ; Mutation ; Oligonucleotide Array Sequence Analysis ; Ovary/metabolism ; Pseudogenes/*genetics ; *Recombination, Genetic ; Retroelements/*genetics ; Selection, Genetic ; Sex Characteristics ; Testis/metabolism ; X Chromosome/*genetics
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  • 58
    Publication Date: 2004-05-01
    Description: Uganda provides the clearest example that human immunodeficiency virus (HIV) is preventable if populations are mobilized to avoid risk. Despite limited resources, Uganda has shown a 70% decline in HIV prevalence since the early 1990s, linked to a 60% reduction in casual sex. The response in Uganda appears to be distinctively associated with communication about acquired immunodeficiency syndrome (AIDS) through social networks. Despite substantial condom use and promotion of biomedical approaches, other African countries have shown neither similar behavioral responses nor HIV prevalence declines of the same scale. The Ugandan success is equivalent to a vaccine of 80% effectiveness. Its replication will require changes in global HIV/AIDS intervention policies and their evaluation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stoneburner, Rand L -- Low-Beer, Daniel -- New York, N.Y. -- Science. 2004 Apr 30;304(5671):714-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Population Health Evaluation Unit, Cambridge University, Cambridge, UK. randstoneburner@netzero.net〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15118157" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Age Distribution ; Condoms ; Disease Outbreaks ; Female ; HIV Infections/*epidemiology/*prevention & control ; Health Education ; Health Knowledge, Attitudes, Practice ; Humans ; Incidence ; Information Dissemination ; Male ; Middle Aged ; Pregnancy ; Pregnancy Complications, Infectious/*epidemiology/*prevention & control ; Prevalence ; *Risk Reduction Behavior ; Sexual Abstinence ; *Sexual Behavior ; Social Support ; Uganda/epidemiology
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-09-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Herz, Barbara -- New York, N.Y. -- Science. 2004 Sep 24;305(5692):1910-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15448252" target="_blank"〉PubMed〈/a〉
    Keywords: Child ; Developing Countries ; *Education ; Family ; Female ; Humans ; Male ; Population Growth ; *Women
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  • 60
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-07-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zakon, Harold -- New York, N.Y. -- Science. 2004 Jul 16;305(5682):349-50.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Neurobiology, University of Texas, Austin, TX 78712, USA. h.zakon@mail.utexas.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15256660" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; Animals ; Batrachoidiformes/*physiology ; Biological Evolution ; Ear, Inner/drug effects/*innervation/physiology ; Electric Fish/physiology ; Estrogens/*pharmacology/physiology ; Female ; Hair Cells, Auditory/physiology ; Hearing/*physiology ; Male ; Neurons, Afferent/*physiology ; Receptors, Estrogen/physiology ; Reproduction ; Sensory Receptor Cells/physiology ; Sexual Behavior, Animal ; Testosterone/pharmacology/physiology ; Vestibulocochlear Nerve/physiology ; *Vocalization, Animal
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  • 61
    Publication Date: 2004-12-18
    Description: The inositol pyrophosphates IP7 and IP8 contain highly energetic pyrophosphate bonds. Although implicated in various biologic functions, their molecular sites of action have not been clarified. Using radiolabeled IP7, we detected phosphorylation of multiple eukaryotic proteins. We also observed phosphorylation of endogenous proteins by endogenous IP7 in yeast. Phosphorylation by IP7 is nonenzymatic and may represent a novel intracellular signaling mechanism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Saiardi, Adolfo -- Bhandari, Rashna -- Resnick, Adam C -- Snowman, Adele M -- Snyder, Solomon H -- DA00074/DA/NIDA NIH HHS/ -- MH068830-02/MH/NIMH NIH HHS/ -- MH18501/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2004 Dec 17;306(5704):2101-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroscience, Johns Hopkins University, School of Medicine, 725 North Wolfe Street, Baltimore, MD 21205, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15604408" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/metabolism ; Amino Acid Sequence ; Amino Acid Substitution ; Animals ; Drosophila Proteins/metabolism ; Drosophila melanogaster ; Escherichia coli Proteins/metabolism ; Humans ; Inositol Phosphates/*metabolism ; Kinetics ; Magnesium/metabolism ; Mice ; Molecular Sequence Data ; Mutation ; Nuclear Proteins/chemistry/*metabolism ; Phosphates/metabolism ; Phosphorylation ; Phosphotransferases (Phosphate Group Acceptor)/metabolism ; Protein Kinases/genetics/metabolism ; Proteins/*metabolism ; RNA-Binding Proteins/chemistry/*metabolism ; Saccharomyces cerevisiae/metabolism ; Saccharomyces cerevisiae Proteins/chemistry/*metabolism ; Serine/metabolism ; Signal Transduction ; Temperature
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  • 62
    Publication Date: 2004-05-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Samet, Jonathan M -- DeMarini, David M -- Malling, Heinrich V -- New York, N.Y. -- Science. 2004 May 14;304(5673):971-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Epidemiology, Johns Hopkins University, Bloomberg School of Public Health, Baltimore, MD 21205, USA. jsamet@jhsph.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15143266" target="_blank"〉PubMed〈/a〉
    Keywords: Air Pollutants/*toxicity ; Air Pollution/*adverse effects ; Animals ; DNA Damage ; Female ; Filtration/instrumentation ; *Germ-Line Mutation ; Humans ; Industry ; Male ; Mice ; Mutagens/*toxicity ; Ontario ; Particle Size ; Polycyclic Hydrocarbons, Aromatic/toxicity ; Pregnancy ; Spermatogonia/drug effects/physiology ; Stem Cells/drug effects/physiology ; Tandem Repeat Sequences
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-12-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hill, Geoffrey E -- New York, N.Y. -- Science. 2004 Dec 24;306(5705):2201-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Science, Auburn University, Auburn, AL 36849, USA. ghill@acesag.auburn.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15619587" target="_blank"〉PubMed〈/a〉
    Keywords: *Animal Migration ; Animals ; Carotenoids/*analysis ; Feathers/*chemistry/growth & development ; Female ; Hydrogen/*analysis ; Isotopes ; Life Cycle Stages ; Male ; *Molting ; Pigmentation ; *Reproduction ; Seasons ; Songbirds/growth & development/*physiology ; Time Factors
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  • 64
    Publication Date: 2004-07-17
    Description: Experiments on imitation typically evaluate a student's ability to copy some feature of an expert's motor behavior. Here, we describe a type of observational learning in which a student copies a cognitive rule rather than a specific motor action. Two rhesus macaques were trained to respond, in a prescribed order, to different sets of photographs that were displayed on a touch-sensitive monitor. Because the position of the photographs varied randomly from trial to trial, sequences could not be learned by motor imitation. Both monkeys learned new sequences more rapidly after observing an expert execute those sequences than when they had to learn new sequences entirely by trial and error.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Subiaul, Francys -- Cantlon, Jessica F -- Holloway, Ralph L -- Terrace, Herbert S -- R01 MH40462/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2004 Jul 16;305(5682):407-10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anthropology, Columbia University, New York, NY 10027, USA. subiaul@aol.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15256673" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cognition ; *Imitative Behavior ; *Learning ; Macaca mulatta/*physiology/psychology ; Male
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  • 65
    Publication Date: 2004-06-19
    Description: Psychologists and economists have long appreciated the contribution of reward history and expectation to decision-making. Yet we know little about how specific histories of choice and reward lead to an internal representation of the "value" of possible actions. We approached this problem through an integrated application of behavioral, computational, and physiological techniques. Monkeys were placed in a dynamic foraging environment in which they had to track the changing values of alternative choices through time. In this context, the monkeys' foraging behavior provided a window into their subjective valuation. We found that a simple model based on reward history can duplicate this behavior and that neurons in the parietal cortex represent the relative value of competing actions predicted by this model.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sugrue, Leo P -- Corrado, Greg S -- Newsome, William T -- New York, N.Y. -- Science. 2004 Jun 18;304(5678):1782-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Department of Neurobiology, Stanford University School of Medicine, Stanford, CA 94305, USA. leo@monkeybiz.stanford.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15205529" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain Mapping ; *Choice Behavior ; Computer Simulation ; Cues ; Decision Making ; Macaca mulatta ; Male ; Mathematics ; Models, Psychological ; Neurons/physiology ; Parietal Lobe/*physiology ; Probability ; Regression Analysis ; Reward ; Saccades
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  • 66
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-01-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Normile, Dennis -- New York, N.Y. -- Science. 2004 Jan 2;303(5654):26.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14704402" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; *Containment of Biohazards ; Guidelines as Topic ; Humans ; Laboratory Infection/prevention & control/*transmission ; Male ; *Medical Laboratory Personnel ; *SARS Virus ; Severe Acute Respiratory Syndrome/prevention & control/*transmission ; Taiwan ; World Health Organization
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  • 67
    Publication Date: 2004-04-17
    Description: Instrumental conditioning studies how animals and humans choose actions appropriate to the affective structure of an environment. According to recent reinforcement learning models, two distinct components are involved: a "critic," which learns to predict future reward, and an "actor," which maintains information about the rewarding outcomes of actions to enable better ones to be chosen more frequently. We scanned human participants with functional magnetic resonance imaging while they engaged in instrumental conditioning. Our results suggest partly dissociable contributions of the ventral and dorsal striatum, with the former corresponding to the critic and the latter corresponding to the actor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉O'Doherty, John -- Dayan, Peter -- Schultz, Johannes -- Deichmann, Ralf -- Friston, Karl -- Dolan, Raymond J -- New York, N.Y. -- Science. 2004 Apr 16;304(5669):452-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wellcome Department of Imaging Neuroscience, Institute of Neurology, University College London, London WC1N 3BG, UK. j.odoherty@fil.ion.ucl.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15087550" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Basal Ganglia/*physiology ; Caudate Nucleus/*physiology ; Conditioning, Classical ; *Conditioning, Operant ; Female ; Humans ; Learning ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Nucleus Accumbens/*physiology ; Probability ; Putamen/*physiology ; Reinforcement (Psychology) ; Reward
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  • 68
    Publication Date: 2004-11-20
    Description: Mobilization of fatty acids from triglyceride stores in adipose tissue requires lipolytic enzymes. Dysfunctional lipolysis affects energy homeostasis and may contribute to the pathogenesis of obesity and insulin resistance. Until now, hormone-sensitive lipase (HSL) was the only enzyme known to hydrolyze triglycerides in mammalian adipose tissue. Here, we report that a second enzyme, adipose triglyceride lipase (ATGL), catalyzes the initial step in triglyceride hydrolysis. It is interesting that ATGL contains a "patatin domain" common to plant acyl-hydrolases. ATGL is highly expressed in adipose tissue of mice and humans. It exhibits high substrate specificity for triacylglycerol and is associated with lipid droplets. Inhibition of ATGL markedly decreases total adipose acyl-hydrolase activity. Thus, ATGL and HSL coordinately catabolize stored triglycerides in adipose tissue of mammals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zimmermann, Robert -- Strauss, Juliane G -- Haemmerle, Guenter -- Schoiswohl, Gabriele -- Birner-Gruenberger, Ruth -- Riederer, Monika -- Lass, Achim -- Neuberger, Georg -- Eisenhaber, Frank -- Hermetter, Albin -- Zechner, Rudolf -- New York, N.Y. -- Science. 2004 Nov 19;306(5700):1383-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Molecular Biosciences, University of Graz, Graz, Austria.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15550674" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3-L1 Cells ; Adipocytes/enzymology/*metabolism ; Adipose Tissue/enzymology/*metabolism ; Adipose Tissue, Brown/enzymology/metabolism ; Amino Acid Sequence ; Animals ; COS Cells ; Cyclic AMP-Dependent Protein Kinases/metabolism ; Cytoplasm/enzymology ; DNA, Complementary ; Diglycerides/metabolism ; Fatty Acids/metabolism ; Gene Silencing ; Glycerol/metabolism ; Humans ; Isoproterenol/pharmacology ; *Lipid Mobilization ; Lipolysis ; Lipoprotein Lipase/chemistry/genetics/immunology/*metabolism ; Mice ; Molecular Sequence Data ; Phosphorylation ; Protein Structure, Tertiary ; RNA, Messenger/genetics/metabolism ; Sterol Esterase/genetics/*metabolism ; Substrate Specificity ; Transfection ; Triglycerides/metabolism
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  • 69
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-04-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tobena, Adolf -- New York, N.Y. -- Science. 2004 Apr 2;304(5667):47-9; author reply 47-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15060306" target="_blank"〉PubMed〈/a〉
    Keywords: *Behavior ; Female ; Humans ; Islam ; Male ; *Personality ; Religion ; *Suicide ; Temperament ; *Terrorism
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  • 70
    Publication Date: 2004-11-13
    Description: Various forms of birth control have been developed for women; however, there are currently few options for men. The development of male contraceptives that are effective, safe, and reversible is desired for family planning throughout the world. We now report contraception of male nonhuman primates (Macaca radiata) immunized with Eppin, a testis/epididymis-specific protein. Seven out of nine males (78%) developed high titers to Eppin, and all of these high-titer monkeys were infertile. Five out of seven (71%) high-anti-Eppin titer males recovered fertility when immunization was stopped. This study demonstrates that effective and reversible male immunocontraception is an attainable goal. This method of immunocontraception may be extended to humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉O'rand, M G -- Widgren, E E -- Sivashanmugam, P -- Richardson, R T -- Hall, S H -- French, F S -- VandeVoort, C A -- Ramachandra, S G -- Ramesh, V -- Jagannadha Rao, A -- New York, N.Y. -- Science. 2004 Nov 12;306(5699):1189-90.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratories for Reproductive Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA. morand@unc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15539605" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies/analysis/blood ; *Contraception, Immunologic ; Female ; Fertility ; Freund's Adjuvant ; Immunization, Secondary ; Macaca mulatta ; Macaca radiata ; Male ; Proteinase Inhibitory Proteins, Secretory ; Proteins/*immunology ; Recombinant Proteins/immunology ; Semen/immunology ; Time Factors ; Vaccination ; *Vaccines, Contraceptive
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  • 71
    Publication Date: 2004-11-30
    Description: Signaling pathways that are activated by epidermal growth factor (EGF) or fibroblast growth factor (FGF) receptors have been identified and compared (detailed Connections Maps are available at Science's Signal Transduction Knowledge Environment). Both receptors stimulate a similar complement of intracellular signaling pathways. However, whereas activated EGF receptors (EGFRs) function as the main platform for recruitment of signaling proteins, signaling through the FGF receptors (FGFRs) is mediated primarily by assembly of a multidocking protein complex. Moreover, FGFR signaling is subject to additional intracellular and extracellular control mechanisms that do not affect EGFR signaling. The differential circuitry of the intracellular networks that are activated by EGFR and FGFR may affect signal specificity and physiological responses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schlessinger, Joseph -- R01-AR051448-01/AR/NIAMS NIH HHS/ -- New York, N.Y. -- Science. 2004 Nov 26;306(5701):1506-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, Yale University School of Medicine, New Haven, CT 06520, USA. joseph.schlessinger@yale.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15567848" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing/metabolism ; Binding Sites ; Dimerization ; Epidermal Growth Factor/metabolism ; Fibroblast Growth Factors/metabolism ; Heparan Sulfate Proteoglycans/metabolism ; Humans ; Ligands ; Phosphorylation ; Receptor, Epidermal Growth Factor/chemistry/*metabolism ; Receptors, Fibroblast Growth Factor/chemistry/*metabolism ; Second Messenger Systems ; *Signal Transduction ; Tyrosine/metabolism
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  • 72
    Publication Date: 2004-08-07
    Description: Young brood parasites that tolerate the company of host offspring challenge the existing evolutionary view of family life. In theory, all parasitic nestlings should be ruthlessly self-interested and should kill host offspring soon after hatching. Yet many species allow host young to live, even though they are rivals for host resources. Here we show that the tolerance of host nestlings by the parasitic brown-headed cowbird Molothrus ater is adaptive. Host young procure the cowbird a higher provisioning rate, so it grows more rapidly. The cowbird's unexpected altruism toward host offspring simply promotes its selfish interests in exploiting host parents.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kilner, Rebecca M -- Madden, Joah R -- Hauber, Mark E -- New York, N.Y. -- Science. 2004 Aug 6;305(5685):877-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Zoology, Downing Street, Cambridge CB2 3EJ, UK. rmk1002@hermes.cam.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15297677" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Behavior, Animal ; Feeding Behavior ; Female ; Male ; *Nesting Behavior ; Regression Analysis ; Social Behavior ; Songbirds/growth & development/*physiology
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  • 73
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-08-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, Constance -- New York, N.Y. -- Science. 2004 Jul 30;305(5684):639-40.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15286362" target="_blank"〉PubMed〈/a〉
    Keywords: Anaerobic Threshold ; Body Constitution ; Doping in Sports ; Female ; Heart/physiology ; Humans ; Male ; Muscle, Skeletal/anatomy & histology/physiology ; Oxygen Consumption ; Physical Endurance ; Pulmonary Ventilation ; *Running ; *Sex Characteristics ; Testosterone/metabolism
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  • 74
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-08-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, Constance -- New York, N.Y. -- Science. 2004 Jul 30;305(5684):637-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15286361" target="_blank"〉PubMed〈/a〉
    Keywords: Africa, Eastern ; Africa, Western ; *African Continental Ancestry Group/genetics ; Body Composition ; Body Constitution ; Energy Metabolism ; Female ; Humans ; Kenya ; Lactates/metabolism ; Leg/anatomy & histology ; Male ; Muscle Fibers, Fast-Twitch/physiology ; Muscle Fibers, Slow-Twitch/physiology ; Muscle, Skeletal/anatomy & histology/enzymology/*physiology ; Oxygen Consumption ; Physical Endurance ; Physical Fitness ; *Running/physiology
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  • 75
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-09-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Testa, Giuseppe -- Harris, John -- New York, N.Y. -- Science. 2004 Sep 17;305(5691):1719.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genomics, BIOTEC, Dresden University of Technology, Dresden, Germany. testa@mpi-cbg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15375251" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bioethical Issues ; Cloning, Organism/*ethics ; Embryo Research/ethics ; Embryo, Mammalian/*cytology ; Female ; Fertilization in Vitro ; Genomic Imprinting ; *Germ Cells ; Humans ; Infertility ; Male ; Mice ; Parents ; Reproductive Techniques, Assisted/*ethics ; *Stem Cells
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-11-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Balter, Michael -- New York, N.Y. -- Science. 2004 Nov 12;306(5699):1120-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15539578" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Biological ; Animals ; *Biological Evolution ; Cooperative Behavior ; *Cultural Evolution ; Emotions ; Endorphins/physiology ; Female ; Humans ; Language ; Male ; Maternal Behavior ; *Music ; Nonverbal Communication ; Object Attachment ; Selection, Genetic ; Sexual Behavior ; *Social Behavior
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-02-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, Constance -- New York, N.Y. -- Science. 2004 Feb 20;303(5661):1121.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14976285" target="_blank"〉PubMed〈/a〉
    Keywords: *Analgesia ; Animals ; Brain/*physiology ; Brain Mapping ; Cerebral Cortex/physiology ; *Empathy ; Female ; Humans ; Limbic System/physiology ; Magnetic Resonance Imaging ; Male ; *Pain ; *Placebo Effect
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  • 78
    Publication Date: 2004-09-09
    Description: Human genetic diseases that resemble accelerated aging provide useful models for gerontologists. They combine known single-gene mutations with deficits in selected tissues that are reminiscent of changes seen during normal aging. Here, we describe recent progress toward linking molecular and cellular changes with the phenotype seen in two of these disorders. One in particular, Werner syndrome, provides evidence to support the hypothesis that the senescence of somatic cells may be a causal agent of normal aging.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kipling, David -- Davis, Terence -- Ostler, Elizabeth L -- Faragher, Richard G A -- New York, N.Y. -- Science. 2004 Sep 3;305(5689):1426-31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, School of Medicine, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15353794" target="_blank"〉PubMed〈/a〉
    Keywords: *Aging ; Animals ; Cell Aging ; Cell Division ; DNA Helicases/genetics/physiology ; Exodeoxyribonucleases ; Female ; Gene Expression ; Humans ; Male ; Mice ; Models, Animal ; Mutation ; Phenotype ; RecQ Helicases ; Telomere/metabolism ; *Werner Syndrome/genetics/pathology/physiopathology
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  • 79
    Publication Date: 2004-01-13
    Description: The development of osteoporosis involves the interaction of multiple environmental and genetic factors. Through combined genetic and genomic approaches, we identified the lipoxygenase gene Alox15 as a negative regulator of peak bone mineral density in mice. Crossbreeding experiments with Alox15 knockout mice confirmed that 12/15-lipoxygenase plays a role in skeletal development. Pharmacologic inhibitors of this enzyme improved bone density and strength in two rodent models of osteoporosis. These results suggest that drugs targeting the 12/15-lipoxygenase pathway merit investigation as a therapy for osteoporosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Klein, Robert F -- Allard, John -- Avnur, Zafrira -- Nikolcheva, Tania -- Rotstein, David -- Carlos, Amy S -- Shea, Marie -- Waters, Ruth V -- Belknap, John K -- Peltz, Gary -- Orwoll, Eric S -- AR44659/AR/NIAMS NIH HHS/ -- HG02322/HG/NHGRI NIH HHS/ -- R01 AR044659/AR/NIAMS NIH HHS/ -- R01 AR044659-08/AR/NIAMS NIH HHS/ -- New York, N.Y. -- Science. 2004 Jan 9;303(5655):229-32.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Bone and Mineral Research Unit, Department of Medicine, School of Medicine, Oregon Health and Science University, 3181 Southwest Sam Jackson Park Road, Portland, OR 97239, USA. kleinro@ohsu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14716014" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arachidonate 12-Lipoxygenase/*genetics/*metabolism ; Arachidonate 15-Lipoxygenase/*genetics/*metabolism ; Bone Density/drug effects/*genetics ; Bone Marrow Cells/metabolism ; Cell Differentiation ; Cells, Cultured ; Crosses, Genetic ; Enzyme Inhibitors/pharmacology ; Female ; Fluorenes/pharmacology ; Gene Expression Profiling ; Genetic Linkage ; Kidney/metabolism ; Lipoxygenase Inhibitors ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Inbred Strains ; Mice, Knockout ; Mice, Transgenic ; Oligonucleotide Array Sequence Analysis ; Osteoblasts/cytology/metabolism/physiology ; Osteogenesis ; Osteoporosis/enzymology ; Polymorphism, Genetic ; Quantitative Trait Loci ; Rats ; Receptors, Cytoplasmic and Nuclear/metabolism ; Stromal Cells/metabolism ; Transcription Factors/metabolism
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  • 80
    Publication Date: 2004-02-07
    Description: Microtubule (MT) stabilization is regulated by the small guanosine triphosphate (GTP)-binding protein Rho and its effector, mammalian homolog of Diaphanous (mDia), in migrating cells, but factors responsible for localized stabilization at the leading edge are unknown. We report that integrin-mediated activation of focal adhesion kinase (FAK) at the leading edge is required for MT stabilization by the Rho-mDia signaling pathway in mouse fibroblasts. MT stabilization also involved FAK-regulated localization of a lipid raft marker, ganglioside GM1, to the leading edge. The integrin-FAK signaling pathway may facilitate Rho-mDia signaling through GM1, or through a specialized membrane domain containing GM1, to stabilize MTs in the leading edge of migrating cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palazzo, Alexander F -- Eng, Christina H -- Schlaepfer, David D -- Marcantonio, Eugene E -- Gundersen, Gregg G -- CA87038/CA/NCI NIH HHS/ -- GM 44585/GM/NIGMS NIH HHS/ -- GM 62939/GM/NIGMS NIH HHS/ -- GM 68695/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2004 Feb 6;303(5659):836-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anatomy and Cell Biology, Columbia University, New York, NY 10032, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14764879" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylation ; Animals ; Carrier Proteins/metabolism ; Cell Adhesion ; Cell Line ; Cell Membrane/*metabolism ; Cholesterol/metabolism ; Fibronectins/metabolism/pharmacology ; Focal Adhesion Kinase 1 ; Focal Adhesion Protein-Tyrosine Kinases ; G(M1) Ganglioside/metabolism ; Glycosylphosphatidylinositols/metabolism ; Integrins/*metabolism ; Membrane Microdomains/*metabolism ; Mice ; Mice, Knockout ; Microtubules/*metabolism/ultrastructure ; NIH 3T3 Cells ; Phosphorylation ; Protein-Tyrosine Kinases/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; Tubulin/metabolism ; rho GTP-Binding Proteins/*metabolism ; rhoA GTP-Binding Protein/genetics/metabolism
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  • 81
    Publication Date: 2004-11-30
    Description: Epithelial cancers are believed to originate from transformation of tissue stem cells. However, bone marrow-derived cells (BMDCs), which are frequently recruited to sites of tissue injury and inflammation, might also represent a potential source of malignancy. We show that although acute injury, acute inflammation, or transient parietal cell loss within the stomach do not lead to BMDC recruitment, chronic infection of C57BL/6 mice with Helicobacter, a known carcinogen, induces repopulation of the stomach with BMDCs. Subsequently, these cells progress through metaplasia and dysplasia to intraepithelial cancer. These findings suggest that epithelial cancers can originate from marrow-derived sources and thus have broad implications for the multistep model of cancer progression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Houghton, Jeanmarie -- Stoicov, Calin -- Nomura, Sachiyo -- Rogers, Arlin B -- Carlson, Jane -- Li, Hanchen -- Cai, Xun -- Fox, James G -- Goldenring, James R -- Wang, Timothy C -- CA95103/CA/NCI NIH HHS/ -- K22 CA90518/CA/NCI NIH HHS/ -- R01 CA87958/CA/NCI NIH HHS/ -- R01 DK58/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2004 Nov 26;306(5701):1568-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine and Cancer Biology, University of Massachusetts Medical School, Worcester, MA 01605, USA. jeanmarie.houghton@umassmed.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15567866" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apoptosis ; Bone Marrow Cells/*cytology ; Bone Marrow Transplantation ; Carcinoma in Situ/pathology ; Cell Differentiation ; Cell Fusion ; Disease Progression ; Female ; Gastric Mucosa/chemistry/pathology ; Gastritis/*pathology ; Helicobacter Infections/*pathology ; *Helicobacter felis ; Keratins/analysis ; Male ; Mesenchymal Stromal Cells/physiology ; Metaplasia ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Mucins/analysis ; Muscle Proteins/analysis ; Parietal Cells, Gastric/physiology ; Peptides/analysis ; Phenotype ; Stem Cells/*physiology ; Stomach Neoplasms/*pathology
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  • 82
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-10-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cohen, Jon -- New York, N.Y. -- Science. 2004 Oct 15;306(5695):387.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15486260" target="_blank"〉PubMed〈/a〉
    Keywords: Administration, Intravaginal ; Animals ; Anti-HIV Agents/administration & dosage/*therapeutic use ; Anti-Infective Agents, Local/administration & dosage/*therapeutic use ; *CCR5 Receptor Antagonists ; Chemokine CCL5/administration & dosage/*analogs & derivatives/*therapeutic use ; Female ; HIV/drug effects ; HIV Infections/*prevention & control/transmission ; Haplorhini ; Humans ; Male ; Receptors, CCR5/metabolism ; Simian Acquired Immunodeficiency Syndrome/*prevention & control/transmission ; Simian Immunodeficiency Virus/drug effects ; Vagina/virology
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  • 83
    Publication Date: 2004-10-23
    Description: Despite evidence that protein kinases are regulators of apoptosis, a specific role for phosphatases in regulating cell survival has not been established. Here we show that alpha4, a noncatalytic subunit of protein phosphatase 2A (PP2A), is required to repress apoptosis in murine cells. alpha4 is a nonredundant regulator of the dephosphorylation of the transcription factors c-Jun and p53. As a result of alpha4 deletion, multiple proapoptotic genes were transcribed. Either inhibition of new protein synthesis or Bcl-xL overexpression suppressed apoptosis initiated by alpha4 deletion. Thus, mammalian cell viability depends on repression of transcription-initiated apoptosis mediated by a component of PP2A.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kong, Mei -- Fox, Casey J -- Mu, James -- Solt, Laura -- Xu, Anne -- Cinalli, Ryan M -- Birnbaum, Morris J -- Lindsten, Tullia -- Thompson, Craig B -- New York, N.Y. -- Science. 2004 Oct 22;306(5696):695-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Abramson Family Cancer Research 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/15499020" target="_blank"〉PubMed〈/a〉
    Keywords: Adipocytes/cytology ; Animals ; *Apoptosis ; Cell Differentiation ; Cell Line ; Cell Survival ; Cells, Cultured ; Cycloheximide/pharmacology ; Gene Deletion ; Gene Expression Profiling ; Liver/cytology/metabolism ; Mice ; Mice, Transgenic ; Oligonucleotide Array Sequence Analysis ; PPAR gamma/metabolism ; Phosphoprotein Phosphatases/*metabolism ; Phosphoproteins/*metabolism ; Phosphorylation ; Protein Phosphatase 2 ; Protein Synthesis Inhibitors/pharmacology ; Proto-Oncogene Proteins c-bcl-2/metabolism ; Proto-Oncogene Proteins c-jun/metabolism ; Transcription, Genetic ; Tumor Suppressor Protein p53/metabolism ; bcl-X Protein
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  • 84
    Publication Date: 2004-01-17
    Description: The capacity to generate a limitless range of meaningful expressions from a finite set of elements differentiates human language from other animal communication systems. Rule systems capable of generating an infinite set of outputs ("grammars") vary in generative power. The weakest possess only local organizational principles, with regularities limited to neighboring units. We used a familiarization/discrimination paradigm to demonstrate that monkeys can spontaneously master such grammars. However, human language entails more sophisticated grammars, incorporating hierarchical structure. Monkeys tested with the same methods, syllables, and sequence lengths were unable to master a grammar at this higher, "phrase structure grammar" level.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fitch, W Tecumseh -- Hauser, Marc D -- New York, N.Y. -- Science. 2004 Jan 16;303(5656):377-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Psychology, University of St. Andrews, St. Andrews, Fife, KY16 9AJ, Scotland. wtsf@st-andrews.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14726592" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Animals ; Cues ; Female ; Humans ; Intelligence ; *Language ; *Learning ; *Linguistics ; Male ; Memory ; *Saguinus ; Speech
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  • 85
    Publication Date: 2004-02-14
    Description: Somatic cell nuclear transfer (SCNT) technology has recently been used to generate animals with a common genetic composition. In this study, we report the derivation of a pluripotent embryonic stem (ES) cell line (SCNT-hES-1) from a cloned human blastocyst. The SCNT-hES-1 cells displayed typical ES cell morphology and cell surface markers and were capable of differentiating into embryoid bodies in vitro and of forming teratomas in vivo containing cell derivatives from all three embryonic germ layers in severe combined immunodeficient mice. After continuous proliferation for more than 70 passages, SCNT-hES-1 cells maintained normal karyotypes and were genetically identical to the somatic nuclear donor cells. Although we cannot completely exclude the possibility that the cells had a parthenogenetic origin, imprinting analyses support a SCNT origin of the derived human ES cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hwang, Woo Suk -- Ryu, Young June -- Park, Jong Hyuk -- Park, Eul Soon -- Lee, Eu Gene -- Koo, Ja Min -- Jeon, Hyun Yong -- Lee, Byeong Chun -- Kang, Sung Keun -- Kim, Sun Jong -- Ahn, Curie -- Hwang, Jung Hye -- Park, Ky Young -- Cibelli, Jose B -- Moon, Shin Yong -- New York, N.Y. -- Science. 2004 Mar 12;303(5664):1669-74. Epub 2004 Feb 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea. hwangws@snu.ac.kr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14963337" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biomarkers/analysis ; Blastocyst/*cytology ; Cell Differentiation ; *Cell Line ; *Cloning, Organism ; Culture Media ; Culture Techniques ; DNA Fingerprinting ; Embryo, Mammalian/*cytology ; Female ; Genomic Imprinting ; Humans ; Karyotyping ; Male ; Mice ; Mice, SCID ; Nuclear Transfer Techniques ; Oocyte Donation ; Ovarian Follicle/cytology ; Parthenogenesis ; Pluripotent Stem Cells/chemistry/*cytology ; Reverse Transcriptase Polymerase Chain Reaction ; Tandem Repeat Sequences ; Teratoma/etiology/pathology ; Testicular Neoplasms/etiology/pathology
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  • 86
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-06-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cohen, Jon -- New York, N.Y. -- Science. 2004 Jun 25;304(5679):1932-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15218138" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/epidemiology/prevention & control/transmission ; Africa/epidemiology ; Asia/epidemiology ; Computer Simulation ; Condoms ; *Disease Outbreaks ; Female ; HIV Infections/*epidemiology/prevention & control/transmission ; Harm Reduction ; Health Education ; Homosexuality, Male ; Humans ; Male ; Models, Statistical ; Needle-Exchange Programs ; Prevalence ; Prostitution ; Risk Factors ; Sexual Behavior ; Substance Abuse, Intravenous
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 87
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-04-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cohen, Jon -- New York, N.Y. -- Science. 2004 Apr 23;304(5670):504-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15105469" target="_blank"〉PubMed〈/a〉
    Keywords: Academies and Institutes ; Acquired Immunodeficiency Syndrome/drug therapy/*epidemiology/transmission ; Ambulatory Care Facilities ; Anti-HIV Agents/therapeutic use ; Delivery of Health Care ; *Disease Outbreaks ; Drug Utilization ; Female ; Government Programs ; HIV Infections/drug therapy/*epidemiology/transmission ; Health Services Accessibility ; Hospitals ; Humans ; India/epidemiology ; Male ; Prevalence
    Print ISSN: 0036-8075
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  • 88
    Publication Date: 2004-05-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kraytsberg, Yevgenya -- Schwartz, Marianne -- Brown, Timothy A -- Ebralidse, Konstantin -- Kunz, Wolfram S -- Clayton, David A -- Vissing, John -- Khrapko, Konstantin -- AG18388/AG/NIA NIH HHS/ -- AG19787/AG/NIA NIH HHS/ -- ES11343/ES/NIEHS NIH HHS/ -- New York, N.Y. -- Science. 2004 May 14;304(5673):981.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15143273" target="_blank"〉PubMed〈/a〉
    Keywords: DNA Replication ; DNA, Mitochondrial/*genetics ; Fathers ; Female ; Humans ; Male ; Mitochondria, Muscle/genetics ; Mothers ; Polymerase Chain Reaction ; *Recombination, Genetic
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  • 89
    Publication Date: 2004-11-06
    Description: To what extent do we learn from the positive versus negative outcomes of our decisions? The neuromodulator dopamine plays a key role in these reinforcement learning processes. Patients with Parkinson's disease, who have depleted dopamine in the basal ganglia, are impaired in tasks that require learning from trial and error. Here, we show, using two cognitive procedural learning tasks, that Parkinson's patients off medication are better at learning to avoid choices that lead to negative outcomes than they are at learning from positive outcomes. Dopamine medication reverses this bias, making patients more sensitive to positive than negative outcomes. This pattern was predicted by our biologically based computational model of basal ganglia-dopamine interactions in cognition, which has separate pathways for "Go" and "NoGo" responses that are differentially modulated by positive and negative reinforcement.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Frank, Michael J -- Seeberger, Lauren C -- O'reilly, Randall C -- MH069597-01/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2004 Dec 10;306(5703):1940-3. Epub 2004 Nov 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychology and Center for Neuroscience, University of Colorado Boulder, Boulder, CO 80309-0345, USA. frankmj@psych.colorado.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15528409" target="_blank"〉PubMed〈/a〉
    Keywords: Aged ; Antiparkinson Agents/therapeutic use ; Basal Ganglia/*physiopathology ; *Cognition ; Computer Simulation ; Dopamine/*physiology ; Feedback, Psychological ; Female ; Frontal Lobe/physiopathology ; Humans ; *Learning ; Male ; Matched-Pair Analysis ; Middle Aged ; Models, Neurological ; Parkinson Disease/drug therapy/*physiopathology/*psychology ; Probability ; *Reinforcement (Psychology)
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  • 90
    Publication Date: 2004-07-27
    Description: Inherited channelopathies are at the origin of many neurological disorders. Here we report a form of channelopathy that is acquired in experimental temporal lobe epilepsy (TLE), the most common form of epilepsy in adults. The excitability of CA1 pyramidal neuron dendrites was increased in TLE because of decreased availability of A-type potassium ion channels due to transcriptional (loss of channels) and posttranslational (increased channel phosphorylation by extracellular signal-regulated kinase) mechanisms. Kinase inhibition partly reversed dendritic excitability to control levels. Such acquired channelopathy is likely to amplify neuronal activity and may contribute to the initiation and/or propagation of seizures in TLE.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bernard, Christophe -- Anderson, Anne -- Becker, Albert -- Poolos, Nicholas P -- Beck, Heinz -- Johnston, Daniel -- MH44754/MH/NIMH NIH HHS/ -- MH48432/MH/NIMH NIH HHS/ -- NS37444/NS/NINDS NIH HHS/ -- NS39943/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2004 Jul 23;305(5683):532-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroscience, Baylor College of Medicine, Houston, TX 77030, USA. cbernard@inmed.univ-mrs.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15273397" target="_blank"〉PubMed〈/a〉
    Keywords: 1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine/pharmacology ; 4-Aminopyridine/pharmacology ; Action Potentials/drug effects ; Animals ; Butadienes/pharmacology ; Dendrites/*physiology ; Enzyme Inhibitors/pharmacology ; Epilepsy, Temporal Lobe/*physiopathology ; Hippocampus/cytology/*physiopathology ; Male ; Membrane Potentials ; Mitogen-Activated Protein Kinases/antagonists & inhibitors/metabolism ; Nitriles/pharmacology ; Phosphorylation ; Pilocarpine/administration & dosage ; Potassium Channel Blockers/pharmacology ; Potassium Channels/drug effects/metabolism/*physiology ; *Potassium Channels, Voltage-Gated ; Protein Kinase C/antagonists & inhibitors/metabolism ; Pyramidal Cells/*physiology ; Rats ; Rats, Sprague-Dawley ; Shal Potassium Channels
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  • 91
    Publication Date: 2004-02-14
    Description: The life cycles of sexually reproducing animals and flowering plants begin with male and female gametes and their fusion to form a zygote. Selection at this earliest stage is crucial for offspring quality and raises similar evolutionary issues, yet zoology and botany use dissimilar approaches. There are striking parallels in the role of prezygotic competition for sexual selection on males, cryptic female choice, sexual conflict, and against selfish genetic elements and genetic incompatibility. In both groups, understanding the evolution of sex-specific and reproductive traits will require an appreciation of the effects of prezygotic competition on fitness.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bernasconi, G -- Ashman, T-L -- Birkhead, T R -- Bishop, J D D -- Grossniklaus, U -- Kubli, E -- Marshall, D L -- Schmid, B -- Skogsmyr, I -- Snook, R R -- Taylor, D -- Till-Bottraud, I -- Ward, P I -- Zeh, D W -- Hellriegel, B -- New York, N.Y. -- Science. 2004 Feb 13;303(5660):971-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Environmental Sciences, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland. bernasco@uwinst.unizh.ch〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14963320" target="_blank"〉PubMed〈/a〉
    Keywords: Angiosperms/*physiology ; Animals ; *Biological Evolution ; Competitive Behavior ; Copulation ; Female ; Gene Expression ; Male ; Pollen/*physiology ; *Reproduction ; Selection, Genetic ; Sex Characteristics ; *Sexual Behavior, Animal ; Spermatozoa/*physiology
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  • 92
    Publication Date: 2004-07-03
    Description: The hippocampus is crucial for spatial memory formation, yet it does not store long-lasting memories. By combining functional brain imaging and region-specific neuronal inactivation in mice, we identified prefrontal and anterior cingulate cortices as critical for storage and retrieval of remote spatial memories [correction]. Imaging of activity-dependent genes also revealed an involvement of parietal and retrosplenial cortices during consolidation of remote memory. Long-term memory storage within some of these neocortical regions was accompanied by structural changes including synaptogenesis and laminar reorganization, concomitant with a functional disengagement of the hippocampus and posterior cingulate cortex [correction]. Thus, consolidation of spatial memory requires a time-dependent hippocampal-cortical dialogue, ultimately enabling widespread cortical networks to mediate effortful recall and use of cortically stored remote memories independently.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maviel, Thibault -- Durkin, Thomas P -- Menzaghi, Frederique -- Bontempi, Bruno -- New York, N.Y. -- Science. 2004 Jul 2;305(5680):96-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratoire de Neurosciences Cognitives, CNRS UMR 5106, Universite de Bordeaux 1, Avenue des Facultes, 33405 Talence, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15232109" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain Mapping ; GAP-43 Protein/metabolism ; Gene Expression Regulation ; Genes, Immediate-Early ; Gyrus Cinguli/*physiology ; Immediate-Early Proteins/metabolism ; Lidocaine/pharmacology ; Male ; Memory/drug effects/*physiology ; Mental Recall ; Mice ; Mice, Inbred C57BL ; Neocortex/*physiology ; Nerve Net/physiology ; Neuronal Plasticity ; Neurons/physiology ; Parietal Lobe/physiology ; Prefrontal Cortex/*physiology ; Synapses/physiology ; Time Factors
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 93
    Publication Date: 2004-05-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cordaux, Richard -- Deepa, Edwin -- Vishwanathan, H -- Stoneking, Mark -- New York, N.Y. -- Science. 2004 May 21;304(5674):1125.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, D-04103 Leipzig, Germany. cordaux@lsu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15155941" target="_blank"〉PubMed〈/a〉
    Keywords: *Agriculture ; Chromosomes, Human, Y/genetics ; Culture ; DNA, Mitochondrial/genetics ; Diffusion of Innovation ; Ethnic Groups/*genetics ; *Genetic Variation ; *Genetics, Population ; Haplotypes ; Humans ; India ; Male
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 94
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-12-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gadagkar, Raghavendra -- New York, N.Y. -- Science. 2004 Dec 3;306(5702):1694-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Ecological Sciences, Indian Institute of Science, 560 012 Bangalore, India. ragh@ces.iisc.ernet.in〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15576600" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Ants/genetics/*physiology ; Bees/genetics/physiology ; Behavior, Animal ; *Biological Evolution ; Diploidy ; Female ; Genes, Insect ; Genetic Variation ; Haploidy ; Male ; *Parthenogenesis ; Reproduction ; Sex Determination Processes ; Sexual Behavior, Animal ; Social Behavior
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 95
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-11-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Couzin, Jennifer -- New York, N.Y. -- Science. 2004 Nov 19;306(5700):1277.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15550635" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arteriosclerosis/*etiology/prevention & control ; Cyclooxygenase 2 ; Cyclooxygenase 2 Inhibitors ; Cyclooxygenase Inhibitors/adverse effects/therapeutic use ; Disease Susceptibility ; Epoprostenol/biosynthesis ; Estrogens/administration & dosage/*pharmacology/*physiology ; Female ; Humans ; Isoenzymes/*metabolism ; Male ; Membrane Proteins ; Mice ; Oxidative Stress/drug effects ; Prostaglandin-Endoperoxide Synthases/*metabolism ; Receptors, Epoprostenol/genetics/metabolism ; *Sex Characteristics
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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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  • 96
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-08-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jaffe, Harold -- New York, N.Y. -- Science. 2004 Aug 27;305(5688):1243-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Public Health, University of Oxford, Old Road Campus, Headington, Oxford OX3 7LF, UK. harold.jaffe@dphpc.ox.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15333825" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS Serodiagnosis ; Acquired Immunodeficiency Syndrome/diagnosis/*epidemiology/*prevention & ; control/transmission ; African Americans/statistics & numerical data ; *Disease Outbreaks ; Female ; Homosexuality, Male/statistics & numerical data ; Humans ; Male ; Needle-Exchange Programs ; Prisoners/statistics & numerical data ; *Public Health ; Public Policy ; Sexual Abstinence ; Substance Abuse, Intravenous/therapy ; United States/epidemiology
    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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  • 97
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-07-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vogel, Gretchen -- New York, N.Y. -- Science. 2004 Jul 2;305(5680):27.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15232079" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bone Marrow Cells/*physiology ; *Bone Marrow Transplantation ; Cell Differentiation ; Cell Fusion ; Epithelial Cells/*cytology/metabolism ; Female ; Green Fluorescent Proteins ; Luminescent Proteins/analysis ; Male ; Mice ; Recombinases/metabolism ; Stem Cells/cytology/*physiology ; Y Chromosome
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 98
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-04-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2004 Apr 16;304(5669):383-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15087523" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Laboratory ; Female ; *Genome ; Inbreeding ; Japan ; Male ; *Mutation ; Oryzias/anatomy & histology/*genetics/physiology ; Reproduction ; Sequence Analysis, DNA
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  • 99
    Publication Date: 2004-04-03
    Description: Human visual recognition processes are remarkably robust and can function effectively even under highly degraded viewing conditions. Contextual information may play a critical role in such circumstances. Here, we provide neurophysiological evidence that contextual cues can elicit object-specific neural responses, which have hitherto been believed to be based on intrinsic cues alone. Specifically, we find that the "fusiform face area" (FFA) maintains its selectivity for faces without regard to whether the faces are defined intrinsically or contextually. This finding further elucidates the role of the FFA and reveals neural correlates of contextual processing in the service of robust object recognition.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cox, David -- Meyers, Ethan -- Sinha, Pawan -- New York, N.Y. -- Science. 2004 Apr 2;304(5667):115-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉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/15001712" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Cues ; *Face ; Female ; *Form Perception ; Humans ; Magnetic Resonance Imaging ; Male ; Pattern Recognition, Visual ; Temporal Lobe/*physiology ; Visual Cortex/*physiology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 100
    Publication Date: 2004-11-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaiser, Jocelyn -- New York, N.Y. -- Science. 2004 Nov 19;306(5700):1285.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15550641" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Proliferation ; *Genetic Predisposition to Disease ; *Genetic Variation ; Humans ; Kruppel-Like Transcription Factors ; Male ; Point Mutation ; Prostatic Neoplasms/*genetics ; Proto-Oncogene Proteins/chemistry/*genetics/physiology ; Trans-Activators/chemistry/*genetics/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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