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  • Male  (161)
  • Cell Line  (74)
  • American Association for the Advancement of Science (AAAS)  (230)
  • American Geophysical Union
  • 2000-2004  (230)
  • 2004  (230)
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  • American Association for the Advancement of Science (AAAS)  (230)
  • American Geophysical Union
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  • 2000-2004  (230)
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  • 1
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    Neuroscience. The mice that don't miss mom: love and the mu-opioid receptor (2004)
    American Association for the Advancement of Science (AAAS)
    Details
    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
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Medicine. Bone marrow cells: the source of gastric cancer? (2004)
    American Association for the Advancement of Science (AAAS)
    Details
    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
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    The Asian epidemic model's provocative curves (2004)
    American Association for the Advancement of Science (AAAS)
    Details
    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
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 4
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    Pain research. Why other people may not feel your pain (2004)
    American Association for the Advancement of Science (AAAS)
    Details
    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
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    In vivo activation of the p53 pathway by small-molecule antagonists of MDM2 (2004)
    American Association for the Advancement of Science (AAAS)
    Details
    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
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Virology. HIV may shed some protection as it jumps to new hosts (2004)
    American Association for the Advancement of Science (AAAS)
    Details
    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
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    Role of LBPA and Alix in multivesicular liposome formation and endosome organization (2004)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2004-01-24
    Description: What are the components that control the assembly of subcellular organelles in eukaryotic cells? Although membranes can clearly be distorted by cytosolic factors, very little is known about the intrinsic mechanisms that control the biogenesis, shape, and organization of organellar membranes. Here, we found that the unconventional phospholipid lysobisphosphatidic acid (LBPA) could induce the formation of multivesicular liposomes that resembled the multivesicular endosomes that exist where this lipid is found in vivo. This process depended on the same pH gradient that exists across endosome membranes in vivo and was selectively controlled by Alix. In turn, Alix regulated the organization of LBPA-containing endosomes in vivo.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Matsuo, Hirotami -- Chevallier, Julien -- Mayran, Nathalie -- Le Blanc, Isabelle -- Ferguson, Charles -- Faure, Julien -- Blanc, Nathalie Sartori -- Matile, Stefan -- Dubochet, Jacques -- Sadoul, Remy -- Parton, Robert G -- Vilbois, Francis -- Gruenberg, Jean -- New York, N.Y. -- Science. 2004 Jan 23;303(5657):531-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of Geneva, 30 quai Ernest Ansermet, 1211 Geneva 4, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14739459" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Annexin A2/metabolism ; Arylsulfonates/metabolism ; Calcium-Binding Proteins/genetics/*metabolism ; Carrier Proteins/genetics/*metabolism ; Cell Cycle Proteins ; Cell Line ; Coloring Agents/metabolism ; Cytosol/metabolism ; Endocytosis ; Endosomal Sorting Complexes Required for Transport ; Endosomes/*metabolism/ultrastructure ; HeLa Cells ; Humans ; Hydrogen-Ion Concentration ; Lipid Bilayers ; Liposomes/*metabolism ; Lysophospholipids/chemistry/*metabolism ; Membrane Glycoproteins/metabolism ; Molecular Structure ; Monoglycerides ; RNA Interference ; RNA, Small Interfering/metabolism ; Vesicular stomatitis Indiana virus/physiology ; Viral Envelope Proteins/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    Multimodal signals: enhancement and constraint of song motor patterns by visual display (2004)
    American Association for the Advancement of Science (AAAS)
    Details
    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
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
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  • 9
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    Acetylation by Tip60 is required for selective histone variant exchange at DNA lesions (2004)
    American Association for the Advancement of Science (AAAS)
    Details
    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
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
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    Separate neural systems value immediate and delayed monetary rewards (2004)
    American Association for the Advancement of Science (AAAS)
    Details
    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
    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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