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  • Male  (822)
  • Molecular Sequence Data  (456)
  • American Association for the Advancement of Science (AAAS)  (1,228)
  • American Association of Petroleum Geologists (AAPG)
  • 2000-2004  (1,228)
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  • American Association for the Advancement of Science (AAAS)  (1,228)
  • American Association of Petroleum Geologists (AAPG)
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  • 1
    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
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  • 2
    Publication Date: 2004-06-05
    Description: The mechanisms by which hydrophobic molecules, such as long-chain fatty acids, enter cells are poorly understood. In Gram-negative bacteria, the lipopolysaccharide layer in the outer membrane is an efficient barrier for fatty acids and aromatic hydrocarbons destined for biodegradation. We report crystal structures of the long-chain fatty acid transporter FadL from Escherichia coli at 2.6 and 2.8 angstrom resolution. FadL forms a 14-stranded beta barrel that is occluded by a central hatch domain. The structures suggest that hydrophobic compounds bind to multiple sites in FadL and use a transport mechanism that involves spontaneous conformational changes in the hatch.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉van den Berg, Bert -- Black, Paul N -- Clemons, William M Jr -- Rapoport, Tom A -- New York, N.Y. -- Science. 2004 Jun 4;304(5676):1506-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Department of Cell Biology, Harvard Medical School, 240 Longwood Avenue, Boston, MA 02115, USA. lvandenberg@hms.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15178802" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Bacterial Outer Membrane Proteins/*chemistry/metabolism ; Binding Sites ; Biological Transport ; Crystallization ; Crystallography, X-Ray ; Escherichia coli/chemistry/metabolism ; Escherichia coli Proteins/*chemistry/metabolism ; Fatty Acid Transport Proteins ; Fatty Acids/*metabolism ; Hydrogen Bonding ; Hydrophobic and Hydrophilic Interactions ; Models, Biological ; Models, Molecular ; Molecular Sequence Data ; Protein Conformation ; Protein Structure, Secondary ; Protein Structure, Tertiary
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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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
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    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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    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
    Publication Date: 2004-05-08
    Description: There are 481 segments longer than 200 base pairs (bp) that are absolutely conserved (100% identity with no insertions or deletions) between orthologous regions of the human, rat, and mouse genomes. Nearly all of these segments are also conserved in the chicken and dog genomes, with an average of 95 and 99% identity, respectively. Many are also significantly conserved in fish. These ultraconserved elements of the human genome are most often located either overlapping exons in genes involved in RNA processing or in introns or nearby genes involved in the regulation of transcription and development. Along with more than 5000 sequences of over 100 bp that are absolutely conserved among the three sequenced mammals, these represent a class of genetic elements whose functions and evolutionary origins are yet to be determined, but which are more highly conserved between these species than are proteins and appear to be essential for the ontogeny of mammals and other vertebrates.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bejerano, Gill -- Pheasant, Michael -- Makunin, Igor -- Stephen, Stuart -- Kent, W James -- Mattick, John S -- Haussler, David -- 1P41HG02371/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2004 May 28;304(5675):1321-5. Epub 2004 May 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, CA 95064, USA. jill@soe.ucsc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15131266" target="_blank"〉PubMed〈/a〉
    Keywords: Alternative Splicing ; Animals ; Base Sequence ; Chickens/genetics ; Computational Biology ; *Conserved Sequence ; DNA, Intergenic ; Dogs/genetics ; Evolution, Molecular ; Exons ; Gene Expression Regulation ; Genes ; Genome ; *Genome, Human ; Humans ; Introns ; Mice/genetics ; Molecular Sequence Data ; Mutation ; Nucleic Acid Conformation ; RNA/chemistry/genetics/metabolism ; Rats/genetics ; Takifugu/genetics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 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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    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
    Publication Date: 2004-06-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beja-Pereira, Albano -- England, Phillip R -- Ferrand, Nuno -- Jordan, Steve -- Bakhiet, Amel O -- Abdalla, Mohammed A -- Mashkour, Marjan -- Jordana, Jordi -- Taberlet, Pierre -- Luikart, Gordon -- New York, N.Y. -- Science. 2004 Jun 18;304(5678):1781.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lab. d'Ecologie Alpine, UMR CNRS-UJF 5553, 38041 Grenoble, France. albano.beja-pereira@ujf-grenoble.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15205528" target="_blank"〉PubMed〈/a〉
    Keywords: Africa ; Animal Husbandry ; Animals ; *Animals, Domestic/classification/genetics ; Animals, Wild/genetics ; Archaeology ; Asia ; Cytochromes b/genetics ; DNA, Mitochondrial/genetics ; Equidae/classification/*genetics ; Haplotypes ; Molecular Sequence Data ; *Phylogeny ; Sequence Analysis, DNA
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  • 8
    Publication Date: 2004-01-06
    Description: Pairing, synapsis, and recombination are prerequisites for accurate chromosome segregation in meiosis. The phs1 gene in maize is required for pairing to occur between homologous chromosomes. In the phs1 mutant, homologous chromosome synapsis is completely replaced by synapsis between nonhomologous partners. The phs1 gene is also required for installation of the meiotic recombination machinery on chromosomes, as the mutant almost completely lacks chromosomal foci of the recombination protein RAD51. Thus, in the phs1 mutant, synapsis is uncoupled from recombination and pairing. The protein encoded by the phs1 gene likely acts in a multistep process to coordinate pairing, recombination, and synapsis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pawlowski, Wojciech P -- Golubovskaya, Inna N -- Timofejeva, Ljudmilla -- Meeley, Robert B -- Sheridan, William F -- Cande, W Zacheus -- New York, N.Y. -- Science. 2004 Jan 2;303(5654):89-92.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720, USA. wpawlows@nature.berkeley.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14704428" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Cell Nucleus/metabolism ; *Chromosome Pairing ; Chromosomes, Plant/*physiology ; Cloning, Molecular ; Conserved Sequence ; DNA, Plant/metabolism ; DNA-Binding Proteins ; Genes, Plant ; In Situ Hybridization, Fluorescence ; In Situ Nick-End Labeling/methods ; *Meiosis ; Molecular Sequence Data ; Mutation ; Phenotype ; Plant Proteins/chemistry/genetics/*physiology ; RNA, Ribosomal, 5S/genetics ; Rad51 Recombinase ; *Recombination, Genetic ; Sequence Alignment ; Synaptonemal Complex/metabolism/ultrastructure ; Telomere/physiology ; Zea mays/*genetics/physiology
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  • 9
    Publication Date: 2004-04-07
    Description: We have applied "whole-genome shotgun sequencing" to microbial populations collected en masse on tangential flow and impact filters from seawater samples collected from the Sargasso Sea near Bermuda. A total of 1.045 billion base pairs of nonredundant sequence was generated, annotated, and analyzed to elucidate the gene content, diversity, and relative abundance of the organisms within these environmental samples. These data are estimated to derive from at least 1800 genomic species based on sequence relatedness, including 148 previously unknown bacterial phylotypes. We have identified over 1.2 million previously unknown genes represented in these samples, including more than 782 new rhodopsin-like photoreceptors. Variation in species present and stoichiometry suggests substantial oceanic microbial diversity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Venter, J Craig -- Remington, Karin -- Heidelberg, John F -- Halpern, Aaron L -- Rusch, Doug -- Eisen, Jonathan A -- Wu, Dongying -- Paulsen, Ian -- Nelson, Karen E -- Nelson, William -- Fouts, Derrick E -- Levy, Samuel -- Knap, Anthony H -- Lomas, Michael W -- Nealson, Ken -- White, Owen -- Peterson, Jeremy -- Hoffman, Jeff -- Parsons, Rachel -- Baden-Tillson, Holly -- Pfannkoch, Cynthia -- Rogers, Yu-Hui -- Smith, Hamilton O -- New York, N.Y. -- Science. 2004 Apr 2;304(5667):66-74. Epub 2004 Mar 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Biological Energy Alternatives, 1901 Research Boulevard, Rockville, MD 20850, USA. jcventer@tcag.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15001713" target="_blank"〉PubMed〈/a〉
    Keywords: Archaea/*genetics ; Atlantic Ocean ; Bacteria/*genetics ; Bacteriophages/genetics ; Biodiversity ; Computational Biology ; Cyanobacteria/genetics/growth & development/metabolism ; *Ecosystem ; Eukaryotic Cells ; Genes, Archaeal ; Genes, Bacterial ; Genes, rRNA ; Genome, Archaeal ; *Genome, Bacterial ; *Genomics ; Molecular Sequence Data ; Photosynthesis ; Phylogeny ; Plasmids ; Rhodopsin/genetics ; Rhodopsins, Microbial ; Seawater/*microbiology ; *Sequence Analysis, DNA ; Water Microbiology
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  • 10
    Publication Date: 2004-01-06
    Description: RNA interference (RNAi) is a widespread silencing mechanism that acts at both the posttranscriptional and transcriptional levels. Here, we describe the purification of an RNAi effector complex termed RITS (RNA-induced initiation of transcriptional gene silencing) that is required for heterochromatin assembly in fission yeast. The RITS complex contains Ago1 (the fission yeast Argonaute homolog), Chp1 (a heterochromatin-associated chromodomain protein), and Tas3 (a novel protein). In addition, the complex contains small RNAs that require the Dicer ribonuclease for their production. These small RNAs are homologous to centromeric repeats and are required for the localization of RITS to heterochromatic domains. The results suggest a mechanism for the role of the RNAi machinery and small RNAs in targeting of heterochromatin complexes and epigenetic gene silencing at specific chromosomal loci.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3244756/" 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/PMC3244756/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Verdel, Andre -- Jia, Songtao -- Gerber, Scott -- Sugiyama, Tomoyasu -- Gygi, Steven -- Grewal, Shiv I S -- Moazed, Danesh -- R01 GM072805/GM/NIGMS NIH HHS/ -- R01 GM072805-01/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2004 Jan 30;303(5658):672-6. Epub 2004 Jan 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Harvard Medical School, Boston, MA02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14704433" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Argonaute Proteins ; Cell Cycle Proteins/chemistry/genetics/isolation & purification/*metabolism ; Centromere/metabolism ; Chromosomes, Fungal/metabolism ; Endoribonucleases/chemistry/genetics/isolation & purification/metabolism ; Genes, Reporter ; Heterochromatin/*metabolism ; Mass Spectrometry ; Models, Genetic ; Molecular Sequence Data ; Mutation ; Precipitin Tests ; Protein Binding ; *RNA Interference ; RNA, Fungal/metabolism ; RNA, Small Interfering/metabolism ; RNA-Binding Proteins ; Ribonuclease III/metabolism ; Schizosaccharomyces/*genetics/metabolism ; Schizosaccharomyces pombe Proteins/chemistry/genetics/isolation & ; purification/*metabolism
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  • 11
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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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  • 12
    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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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 13
    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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  • 14
    Publication Date: 2004-02-07
    Description: The 1918 influenza pandemic resulted in about 20 million deaths. This enormous impact, coupled with renewed interest in emerging infections, makes characterization of the virus involved a priority. Receptor binding, the initial event in virus infection, is a major determinant of virus transmissibility that, for influenza viruses, is mediated by the hemagglutinin (HA) membrane glycoprotein. We have determined the crystal structures of the HA from the 1918 virus and two closely related HAs in complex with receptor analogs. They explain how the 1918 HA, while retaining receptor binding site amino acids characteristic of an avian precursor HA, is able to bind human receptors and how, as a consequence, the virus was able to spread in the human population.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gamblin, S J -- Haire, L F -- Russell, R J -- Stevens, D J -- Xiao, B -- Ha, Y -- Vasisht, N -- Steinhauer, D A -- Daniels, R S -- Elliot, A -- Wiley, D C -- Skehel, J J -- AI-13654/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2004 Mar 19;303(5665):1838-42. Epub 2004 Feb 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council (MRC) National Institute for Medical Research, The Ridgeway, Mill Hill, London NW7 1AA, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14764886" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Binding Sites ; Birds ; Crystallography, X-Ray ; Hemagglutinin Glycoproteins, Influenza Virus/*chemistry/*metabolism ; History, 20th Century ; Humans ; Hydrogen Bonding ; Influenza A virus/*immunology/metabolism/pathogenicity ; Influenza, Human/epidemiology/history/*virology ; Membrane Glycoproteins/chemistry/metabolism ; Models, Molecular ; Molecular Sequence Data ; Protein Conformation ; Protein Structure, Tertiary ; Receptors, Virus/*metabolism ; Sequence Alignment ; Sialic Acids/metabolism ; Species Specificity ; Swine
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  • 15
    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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  • 16
    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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  • 17
    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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  • 18
    Publication Date: 2004-02-21
    Description: Feline immunodeficiency virus (FIV) induces a disease similar to acquired immunodeficiency syndrome (AIDS) in cats, yet in contrast to human immunodeficiency virus (HIV), CD4 is not the viral receptor. We identified a primary receptor for FIV as CD134 (OX40), a T cell activation antigen and costimulatory molecule. CD134 expression promotes viral binding and renders cells permissive for viral entry, productive infection, and syncytium formation. Infection is CXCR4-dependent, analogous to infection with X4 strains of HIV. Thus, despite the evolutionary divergence of the feline and human lentiviruses, both viruses use receptors that target the virus to a subset of cells that are pivotal to the acquired immune response.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shimojima, Masayuki -- Miyazawa, Takayuki -- Ikeda, Yasuhiro -- McMonagle, Elizabeth L -- Haining, Hayley -- Akashi, Hiroomi -- Takeuchi, Yasuhiro -- Hosie, Margaret J -- Willett, Brian J -- R01 AI49765-01A1/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2004 Feb 20;303(5661):1192-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Veterinary Microbiology, Graduate School of Agricultural and Life Sciences, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14976315" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; CD4-Positive T-Lymphocytes/immunology/metabolism/virology ; Cats ; Cell Line ; Cell Line, Tumor ; DNA, Complementary ; Gene Library ; HIV/metabolism ; HeLa Cells ; Heterocyclic Compounds/pharmacology ; Humans ; Immunodeficiency Virus, Feline/*metabolism/pathogenicity ; Mice ; Molecular Sequence Data ; NIH 3T3 Cells ; Receptors, CXCR4/antagonists & inhibitors/metabolism ; Receptors, OX40 ; Receptors, Tumor Necrosis Factor/chemistry/genetics/immunology/*metabolism ; Receptors, Virus/chemistry/genetics/immunology/*metabolism ; Species Specificity ; Transduction, Genetic ; Transfection
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  • 19
    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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  • 20
    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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  • 21
    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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  • 22
    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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  • 23
    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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  • 24
    Publication Date: 2004-01-13
    Description: A family of unusual proteins is deposited in flat, structural platelets in reflective tissues of the squid Euprymna scolopes. These proteins, which we have named reflectins, are encoded by at least six genes in three subfamilies and have no reported homologs outside of squids. Reflectins possess five repeating domains, which are highly conserved among members of the family. The proteins have a very unusual composition, with four relatively rare residues (tyrosine, methionine, arginine, and tryptophan) comprising approximately 57% of a reflectin, and several common residues (alanine, isoleucine, leucine, and lysine) occurring in none of the family members. These protein-based reflectors in squids provide a marked example of nanofabrication in animal systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Crookes, Wendy J -- Ding, Lin-Lin -- Huang, Qing Ling -- Kimbell, Jennifer R -- Horwitz, Joseph -- McFall-Ngai, Margaret J -- NEI R01 EY3897/EY/NEI NIH HHS/ -- R01 A150661/PHS HHS/ -- New York, N.Y. -- Science. 2004 Jan 9;303(5655):235-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Kewalo Marine Laboratory, Pacific Biomedical Research Center, University of Hawaii-Manoa, 41 Ahui Street, Honolulu, HI 96813, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14716016" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amino Acids/analysis ; Animals ; DNA, Complementary ; Decapodiformes/anatomy & histology/*chemistry/genetics ; Electrophoresis, Polyacrylamide Gel ; Immunoblotting ; Immunohistochemistry ; *Light ; Microscopy, Immunoelectron ; Molecular Sequence Data ; Polymerase Chain Reaction ; Protein Structure, Tertiary ; Proteins/*analysis/*chemistry/genetics/isolation & purification ; Sequence Alignment ; Solubility
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  • 25
    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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  • 26
    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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  • 27
    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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  • 28
    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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  • 29
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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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  • 30
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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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  • 31
    Publication Date: 2004-01-17
    Description: Several human and animal Ebola outbreaks have occurred over the past 4 years in Gabon and the Republic of Congo. The human outbreaks consisted of multiple simultaneous epidemics caused by different viral strains, and each epidemic resulted from the handling of a distinct gorilla, chimpanzee, or duiker carcass. These animal populations declined markedly during human Ebola outbreaks, apparently as a result of Ebola infection. Recovered carcasses were infected by a variety of Ebola strains, suggesting that Ebola outbreaks in great apes result from multiple virus introductions from the natural host. Surveillance of animal mortality may help to predict and prevent human Ebola outbreaks.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Leroy, Eric M -- Rouquet, Pierre -- Formenty, Pierre -- Souquiere, Sandrine -- Kilbourne, Annelisa -- Froment, Jean-Marc -- Bermejo, Magdalena -- Smit, Sheilag -- Karesh, William -- Swanepoel, Robert -- Zaki, Sherif R -- Rollin, Pierre E -- New York, N.Y. -- Science. 2004 Jan 16;303(5656):387-90.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut de Recherche pour le Developpement, UR034, Centre International de Recherches Medicales de Franceville, BP 769 Franceville, Gabon. Eric.Leroy@ird.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14726594" target="_blank"〉PubMed〈/a〉
    Keywords: Africa, Central/epidemiology ; Animals ; Animals, Wild/*virology ; Ape Diseases/*epidemiology/virology ; Base Sequence ; *Disease Outbreaks/veterinary ; Disease Reservoirs ; Ebolavirus/classification/*genetics/isolation & purification ; Gabon/epidemiology ; Genes, Viral ; Gorilla gorilla/virology ; Hemorrhagic Fever, Ebola/*epidemiology/transmission/*veterinary/virology ; Humans ; Molecular Sequence Data ; Pan troglodytes/virology ; Population Density ; Population Surveillance ; Ruminants/virology ; Viral Envelope Proteins/genetics
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  • 32
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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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  • 33
    Publication Date: 2004-08-18
    Description: Colonies of the Caribbean coral Montastraea cavernosa exhibit a solar-stimulated orange-red fluorescence that is spectrally similar to a variety of fluorescent proteins expressed by corals. The source of this fluorescence is phycoerythrin in unicellular, nonheterocystis, symbiotic cyanobacteria within the host cells of the coral. The cyanobacteria coexist with the symbiotic dinoflagellates (zooxanthellae) of the coral and express the nitrogen-fixing enzyme nitrogenase. The presence of this prokaryotic symbiont in a nitrogen-limited zooxanthellate coral suggests that nitrogen fixation may be an important source of this limiting element for the symbiotic association.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lesser, Michael P -- Mazel, Charles H -- Gorbunov, Maxim Y -- Falkowski, Paul G -- New York, N.Y. -- Science. 2004 Aug 13;305(5686):997-1000.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Zoology and Center for Marine Biology, University of New Hampshire, Durham, NH 03824, USA. mpl@cisunix.unh.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15310901" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anthozoa/*microbiology/physiology ; Cyanobacteria/genetics/isolation & purification/*physiology/ultrastructure ; Dinoflagellida/isolation & purification/physiology ; Fluorescence ; Microscopy, Fluorescence ; Molecular Sequence Data ; *Nitrogen Fixation ; Nitrogenase/genetics/metabolism ; Organelles/ultrastructure ; Phycoerythrin/metabolism ; *Symbiosis ; Thylakoids/ultrastructure
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  • 34
    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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  • 35
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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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  • 36
    Publication Date: 2004-08-03
    Description: Propionibacterium acnes is a major inhabitant of adult human skin, where it resides within sebaceous follicles, usually as a harmless commensal although it has been implicated in acne vulgaris formation. The entire genome sequence of this Gram-positive bacterium encodes 2333 putative genes and revealed numerous gene products involved in degrading host molecules, including sialidases, neuraminidases, endoglycoceramidases, lipases, and pore-forming factors. Surface-associated and other immunogenic factors have been identified, which might be involved in triggering acne inflammation and other P. acnes-associated diseases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bruggemann, Holger -- Henne, Anke -- Hoster, Frank -- Liesegang, Heiko -- Wiezer, Arnim -- Strittmatter, Axel -- Hujer, Sandra -- Durre, Peter -- Gottschalk, Gerhard -- New York, N.Y. -- Science. 2004 Jul 30;305(5684):671-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Gottingen Genomics Laboratory, Institute of Microbiology and Genetics, Georg-August-University Gottingen, Grisebachstrasse 8, 37077 Gottingen, Germany. hbruegg@pasteur.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15286373" target="_blank"〉PubMed〈/a〉
    Keywords: Acne Vulgaris/immunology/microbiology ; Amino Acid Motifs ; Amino Acid Sequence ; Antigens, Bacterial/chemistry/genetics ; Bacterial Proteins/chemistry/genetics/immunology ; Base Sequence ; Chromosomes, Bacterial/genetics ; Computational Biology ; Energy Metabolism ; Esterases/genetics/metabolism ; Genes, Bacterial ; *Genome, Bacterial ; Heat-Shock Proteins/chemistry/genetics ; Humans ; Hydrolases/genetics/metabolism ; Lipase/genetics/metabolism ; Molecular Sequence Data ; Oxidative Phosphorylation ; Propionibacterium acnes/*genetics/immunology/physiology ; *Sequence Analysis, DNA ; Skin/*microbiology
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  • 37
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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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  • 38
    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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  • 39
    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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  • 40
    Publication Date: 2004-02-07
    Description: The 1918 "Spanish" influenza pandemic represents the largest recorded outbreak of any infectious disease. The crystal structure of the uncleaved precursor of the major surface antigen of the extinct 1918 virus was determined at 3.0 angstrom resolution after reassembly of the hemagglutinin gene from viral RNA fragments preserved in 1918 formalin-fixed lung tissues. A narrow avian-like receptor-binding site, two previously unobserved histidine patches, and a less exposed surface loop at the cleavage site that activates viral membrane fusion reveal structural features primarily found in avian viruses, which may have contributed to the extraordinarily high infectivity and mortality rates observed during 1918.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stevens, James -- Corper, Adam L -- Basler, Christopher F -- Taubenberger, Jeffery K -- Palese, Peter -- Wilson, Ian A -- AI058113/AI/NIAID NIH HHS/ -- AI42266/AI/NIAID NIH HHS/ -- AI50619/AI/NIAID NIH HHS/ -- CA55896/CA/NCI NIH HHS/ -- P50-GM 62411/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2004 Mar 19;303(5665):1866-70. Epub 2004 Feb 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14764887" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Binding Sites ; Carbohydrate Conformation ; Cloning, Molecular ; Crystallography, X-Ray ; Glycosylation ; Hemagglutinin Glycoproteins, Influenza Virus/*chemistry/metabolism ; Histidine/chemistry/metabolism ; History, 20th Century ; Humans ; Hydrogen Bonding ; Influenza A virus/classification/*immunology/pathogenicity ; Influenza, Human/epidemiology/history/virology ; Molecular Sequence Data ; Protein Conformation ; Protein Structure, Quaternary ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Receptors, Virus/metabolism ; Sialic Acids/metabolism
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  • 41
    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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  • 42
    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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  • 43
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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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  • 44
    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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  • 45
    Publication Date: 2004-03-06
    Description: We have sequenced and annotated the genome of the filamentous ascomycete Ashbya gossypii. With a size of only 9.2 megabases, encoding 4718 protein-coding genes, it is the smallest genome of a free-living eukaryote yet characterized. More than 90% of A. gossypii genes show both homology and a particular pattern of synteny with Saccharomyces cerevisiae. Analysis of this pattern revealed 300 inversions and translocations that have occurred since divergence of these two species. It also provided compelling evidence that the evolution of S. cerevisiae included a whole genome duplication or fusion of two related species and showed, through inferred ancient gene orders, which of the duplicated genes lost one copy and which retained both copies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dietrich, Fred S -- Voegeli, Sylvia -- Brachat, Sophie -- Lerch, Anita -- Gates, Krista -- Steiner, Sabine -- Mohr, Christine -- Pohlmann, Rainer -- Luedi, Philippe -- Choi, Sangdun -- Wing, Rod A -- Flavier, Albert -- Gaffney, Thomas D -- Philippsen, Peter -- New York, N.Y. -- Science. 2004 Apr 9;304(5668):304-7. Epub 2004 Mar 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biozentrum der Universitat Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15001715" target="_blank"〉PubMed〈/a〉
    Keywords: Base Composition ; Biological Evolution ; Centromere/genetics ; Chromosome Inversion ; *Chromosome Mapping ; Computational Biology ; Fungal Proteins/genetics ; Gene Duplication ; Gene Order ; Genes, Fungal ; *Genome, Fungal ; Molecular Sequence Data ; Open Reading Frames ; Saccharomyces cerevisiae/*genetics ; Saccharomycetales/*genetics ; Sequence Alignment ; *Sequence Analysis, DNA ; Sequence Homology, Nucleic Acid ; Synteny ; Translocation, Genetic
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  • 46
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-01-31
    Description: Sixty-one SARS coronavirus genomic sequences derived from the early, middle, and late phases of the severe acute respiratory syndrome (SARS) epidemic were analyzed together with two viral sequences from palm civets. Genotypes characteristic of each phase were discovered, and the earliest genotypes were similar to the animal SARS-like coronaviruses. Major deletions were observed in the Orf8 region of the genome, both at the start and the end of the epidemic. The neutral mutation rate of the viral genome was constant but the amino acid substitution rate of the coding sequences slowed during the course of the epidemic. The spike protein showed the strongest initial responses to positive selection pressures, followed by subsequent purifying selection and eventual stabilization.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chinese SARS Molecular Epidemiology Consortium -- New York, N.Y. -- Science. 2004 Mar 12;303(5664):1666-9. Epub 2004 Jan 29.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14752165" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; Amino Acid Substitution ; Animals ; Base Sequence ; Carnivora/virology ; China/epidemiology ; Cluster Analysis ; Coronavirus/genetics/isolation & purification ; *Disease Outbreaks ; *Evolution, Molecular ; *Genome, Viral ; Genotype ; Humans ; Membrane Glycoproteins/genetics ; Molecular Sequence Data ; Mutation ; Nucleic Acid Conformation ; Open Reading Frames ; Phylogeny ; Point Mutation ; RNA, Viral/genetics ; SARS Virus/*genetics/isolation & purification/physiology ; Selection, Genetic ; Sequence Deletion ; Severe Acute Respiratory Syndrome/*epidemiology/*virology ; Spike Glycoprotein, Coronavirus ; Viral Envelope Proteins/genetics ; Viral Matrix Proteins/chemistry/genetics
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  • 47
    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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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 48
    Publication Date: 2004-01-31
    Description: The lantibiotic lacticin 481 is synthesized on ribosomes as a prepeptide (LctA) and posttranslationally modified to its mature form. These modifications include dehydration of serines and threonines, followed by intramolecular addition of cysteines to the unsaturated amino acids, which generates cyclic thioethers. This process breaks eight chemical bonds and forms six newbonds and is catalyzed by one enzyme, LctM. We have characterized the in vitro activity of LctM, which completely processed a series of LctA mutants, displaying a permissive substrate specificity that holds promise for antibiotic engineering.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xie, Lili -- Miller, Leah M -- Chatterjee, Champak -- Averin, Olga -- Kelleher, Neil L -- van der Donk, Wilfred A -- GM 067725/GM/NIGMS NIH HHS/ -- GM58822/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2004 Jan 30;303(5658):679-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, University of Illinois at Urbana-Champaign, 600 S. Mathews Avenue, Urbana, IL61801, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14752162" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Bacterial Proteins/*biosynthesis/genetics ; *Bacteriocins ; Cloning, Molecular ; Cysteine/metabolism ; Enzymes/chemistry/genetics/isolation & purification/*metabolism ; Escherichia coli/genetics ; Lactococcus lactis/enzymology/genetics/*metabolism ; Molecular Sequence Data ; Mutation ; Protein Precursors/chemistry/metabolism ; Protein Processing, Post-Translational ; Serine/metabolism ; Spectrometry, Mass, Electrospray Ionization ; Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization ; Substrate Specificity ; Threonine/metabolism
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  • 49
    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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  • 50
    Publication Date: 2004-01-06
    Description: A previously unknown maltose transporter is essential for the conversion of starch to sucrose in Arabidopsis leaves at night. The transporter was identified by isolating two allelic mutants with high starch levels and very high maltose, an intermediate of starch breakdown. The mutations affect a gene of previously unknown function, MEX1. We show that MEX1is a maltose transporter that is unrelated to other sugar transporters. The severe mex1 phenotype demonstrates that MEX1is the predominant route of carbohydrate export from chloroplasts at night. Homologous genes in plants including rice and potato indicate that maltose export is of widespread significance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Niittyla, Totte -- Messerli, Gaelle -- Trevisan, Martine -- Chen, Jychian -- Smith, Alison M -- Zeeman, Samuel C -- New York, N.Y. -- Science. 2004 Jan 2;303(5654):87-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Metabolic Biology, John Innes Centre, Norwich NR4 7UH, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14704427" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Arabidopsis/genetics/*metabolism ; Arabidopsis Proteins/chemistry/genetics/*metabolism ; Biological Transport ; Chloroplasts/metabolism ; Cloning, Molecular ; Crosses, Genetic ; DNA, Complementary ; Genes, Plant ; Glucose/metabolism ; Maltose/*metabolism ; Molecular Sequence Data ; Monosaccharide Transport Proteins/chemistry/genetics/*metabolism ; Mutation ; Phenotype ; Plant Leaves/*metabolism ; Recombinant Fusion Proteins/metabolism ; Sequence Alignment ; Starch/*metabolism
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  • 51
    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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  • 52
    Publication Date: 2004-04-17
    Description: Mitochondrial dysfunction is a hallmark of beta-amyloid (Abeta)-induced neuronal toxicity in Alzheimer's disease (AD). Here, we demonstrate that Abeta-binding alcohol dehydrogenase (ABAD) is a direct molecular link from Abeta to mitochondrial toxicity. Abeta interacts with ABAD in the mitochondria of AD patients and transgenic mice. The crystal structure of Abeta-bound ABAD shows substantial deformation of the active site that prevents nicotinamide adenine dinucleotide (NAD) binding. An ABAD peptide specifically inhibits ABAD-Abeta interaction and suppresses Abeta-induced apoptosis and free-radical generation in neurons. Transgenic mice overexpressing ABAD in an Abeta-rich environment manifest exaggerated neuronal oxidative stress and impaired memory. These data suggest that the ABAD-Abeta interaction may be a therapeutic target in AD.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lustbader, Joyce W -- Cirilli, Maurizio -- Lin, Chang -- Xu, Hong Wei -- Takuma, Kazuhiro -- Wang, Ning -- Caspersen, Casper -- Chen, Xi -- Pollak, Susan -- Chaney, Michael -- Trinchese, Fabrizio -- Liu, Shumin -- Gunn-Moore, Frank -- Lue, Lih-Fen -- Walker, Douglas G -- Kuppusamy, Periannan -- Zewier, Zay L -- Arancio, Ottavio -- Stern, David -- Yan, Shirley ShiDu -- Wu, Hao -- 1K07AG00959/AG/NIA NIH HHS/ -- AG16736/AG/NIA NIH HHS/ -- AG17490/AG/NIA NIH HHS/ -- NS42855/NS/NINDS NIH HHS/ -- P50AG08702/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 2004 Apr 16;304(5669):448-52.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Reproductive Sciences and Department of Obstetrics and Gynecology, College of Physicians and Surgeons, Columbia University, 630 West 168th Street, New York, NY 10032, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15087549" target="_blank"〉PubMed〈/a〉
    Keywords: 3-Hydroxyacyl CoA Dehydrogenases/chemistry/*metabolism ; Aged ; Aged, 80 and over ; Alzheimer Disease/*metabolism ; Amino Acid Sequence ; Amyloid beta-Peptides/chemistry/genetics/*metabolism ; Animals ; Binding Sites ; Brain/*metabolism ; Brain Chemistry ; Carrier Proteins/chemistry/*metabolism ; Cells, Cultured ; Cerebral Cortex/chemistry/metabolism ; Crystallization ; DNA Fragmentation ; Hippocampus/physiology ; Humans ; Learning ; Memory ; Mice ; Mice, Transgenic ; Microscopy, Confocal ; Microscopy, Immunoelectron ; Mitochondria/chemistry/*metabolism ; Models, Molecular ; Molecular Sequence Data ; Mutation ; NAD/metabolism ; Neurons/metabolism ; Protein Binding ; Protein Conformation ; Reactive Oxygen Species/metabolism
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  • 53
    Publication Date: 2004-10-09
    Description: Nitric oxide (NO) is extremely toxic to Clostridium botulinum, but its molecular targets are unknown. Here, we identify a heme protein sensor (SONO) that displays femtomolar affinity for NO. The crystal structure of the SONO heme domain reveals a previously undescribed fold and a strategically placed tyrosine residue that modulates heme-nitrosyl coordination. Furthermore, the domain architecture of a SONO ortholog cloned from Chlamydomonas reinhardtii indicates that NO signaling through cyclic guanosine monophosphate arose before the origin of multicellular eukaryotes. Our findings have broad implications for understanding bacterial responses to NO, as well as for the activation of mammalian NO-sensitive guanylyl cyclase.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nioche, Pierre -- Berka, Vladimir -- Vipond, Julia -- Minton, Nigel -- Tsai, Ah-Lim -- Raman, C S -- AY343540/PHS HHS/ -- R01 AI054444/AI/NIAID NIH HHS/ -- R01 AI054444-05/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2004 Nov 26;306(5701):1550-3. Epub 2004 Oct 7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Structural Biology Research Center and Department of Biochemistry and Molecular Biology, University of Texas Medical School, Houston, TX 77030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15472039" target="_blank"〉PubMed〈/a〉
    Keywords: Aerobiosis ; Amino Acid Sequence ; Amino Acid Substitution ; Animals ; Bacterial Proteins/chemistry/metabolism ; Biological Evolution ; Carrier Proteins/*chemistry/genetics/*metabolism ; Chemotaxis ; Chlamydomonas reinhardtii/chemistry/genetics/metabolism ; Cloning, Molecular ; Clostridium botulinum/*chemistry/genetics/*metabolism ; Crystallography, X-Ray ; Electron Spin Resonance Spectroscopy ; Escherichia coli/genetics/growth & development ; Guanylate Cyclase ; Heme/chemistry/metabolism ; Hemeproteins/*chemistry/genetics/*metabolism ; Humans ; Hydrogen Bonding ; Ligands ; Models, Molecular ; Molecular Sequence Data ; Nitric Oxide/*metabolism ; Protein Folding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Protoporphyrins/analysis/metabolism ; Receptors, Cytoplasmic and Nuclear/chemistry/metabolism ; Sequence Alignment ; Signal Transduction ; Static Electricity ; Thermoanaerobacter/chemistry
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  • 54
    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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  • 55
    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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  • 56
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2004-04-24
    Description: MicroRNAs (miRNAs) are endogenous approximately 22-nucleotide RNAs, some of which are known to play important regulatory roles in animals by targeting the messages of protein-coding genes for translational repression. We find that miR-196, a miRNA encoded at three paralogous locations in the A, B, and C mammalian HOX clusters, has extensive, evolutionarily conserved complementarity to messages of HOXB8, HOXC8, and HOXD8. RNA fragments diagnostic of miR-196-directed cleavage of HOXB8 were detected in mouse embryos. Cell culture experiments demonstrated down-regulation of HOXB8, HOXC8, HOXD8, and HOXA7 and supported the cleavage mechanism for miR-196-directed repression of HOXB8. These results point to a miRNA-mediated mechanism for the posttranscriptional restriction of HOX gene expression during vertebrate development and demonstrate that metazoan miRNAs can repress expression of their natural targets through mRNA cleavage in addition to inhibiting productive translation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yekta, Soraya -- Shih, I-Hung -- Bartel, David P -- New York, N.Y. -- Science. 2004 Apr 23;304(5670):594-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research, Nine Cambridge Center, Cambridge, MA 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15105502" target="_blank"〉PubMed〈/a〉
    Keywords: 3' Untranslated Regions ; Animals ; Base Sequence ; Down-Regulation ; *Genes, Homeobox ; Genes, Reporter ; HeLa Cells ; Homeodomain Proteins/*genetics ; Humans ; Mice ; MicroRNAs/chemistry/genetics/*metabolism ; Molecular Sequence Data ; Neoplasm Proteins/genetics ; RNA, Messenger/chemistry/*genetics/*metabolism ; Sequence Alignment ; Transcription Factors/genetics ; Transfection
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  • 57
    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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  • 58
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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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  • 59
    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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  • 60
    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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  • 61
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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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  • 62
    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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  • 63
    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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  • 64
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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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  • 65
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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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  • 66
    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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  • 67
    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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  • 68
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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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  • 69
    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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  • 70
    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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  • 71
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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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  • 72
    Publication Date: 2004-12-14
    Description: Malaria parasites secrete proteins across the vacuolar membrane into the erythrocyte, inducing modifications linked to disease and parasite survival. We identified an 11-amino acid signal required for the secretion of proteins from the Plasmodium falciparum vacuole to the human erythrocyte. Bioinformatics predicted a secretome of 〉320 proteins and conservation of the signal across parasite species. Functional studies indicated the predictive value of the signal and its role in targeting virulence proteins to the erythrocyte and implicated its recognition by a receptor/transporter. Erythrocyte modification by the parasite may involve plasmodial heat shock proteins and be vastly more complex than hitherto realized.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hiller, N Luisa -- Bhattacharjee, Souvik -- van Ooij, Christiaan -- Liolios, Konstantinos -- Harrison, Travis -- Lopez-Estrano, Carlos -- Haldar, Kasturi -- AI39071/AI/NIAID NIH HHS/ -- HL69630/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2004 Dec 10;306(5703):1934-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Pathology and Microbiology-Immunology, Feinberg School of Medicine, Northwestern University, 303 East Chicago Avenue, Chicago, IL 60611, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15591203" target="_blank"〉PubMed〈/a〉
    Keywords: *Amino Acid Motifs ; Amino Acid Sequence ; Animals ; Computational Biology ; Cytosol/metabolism ; Erythrocytes/*metabolism/parasitology ; Genes, Protozoan ; Humans ; Malaria, Falciparum/parasitology ; Membrane Proteins/chemistry/metabolism ; Molecular Sequence Data ; Plasmodium falciparum/genetics/growth & development/*metabolism/*pathogenicity ; *Protein Sorting Signals ; Protein Structure, Tertiary ; Protein Transport ; Protozoan Proteins/chemistry/genetics/*metabolism ; Recombinant Fusion Proteins/chemistry/metabolism ; Transgenes ; Vacuoles/metabolism/parasitology ; Virulence Factors/chemistry/genetics/*metabolism
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  • 73
    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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  • 74
    Publication Date: 2004-09-14
    Description: The first structure of an ammonia channel from the Amt/MEP/Rh protein superfamily, determined to 1.35 angstrom resolution, shows it to be a channel that spans the membrane 11 times. Two structurally similar halves span the membrane with opposite polarity. Structures with and without ammonia or methyl ammonia show a vestibule that recruits NH4+/NH3, a binding site for NH4+, and a 20 angstrom-long hydrophobic channel that lowers the NH4+ pKa to below 6 and conducts NH3. Favorable interactions for NH3 are seen within the channel and use conserved histidines. Reconstitution of AmtB into vesicles shows that AmtB conducts uncharged NH3.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Khademi, Shahram -- O'Connell, Joseph 3rd -- Remis, Jonathan -- Robles-Colmenares, Yaneth -- Miercke, Larry J W -- Stroud, Robert M -- GM24485/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2004 Sep 10;305(5690):1587-94.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Biophysics, S412C Genentech Hall, University of California-San Francisco, 600 16th Street, San Francisco, CA 94143-2240, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15361618" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Ammonia/*metabolism ; Binding Sites ; Biological Transport ; Cation Transport Proteins/*chemistry/genetics/metabolism ; Cell Membrane/chemistry ; Crystallization ; Crystallography, X-Ray ; Escherichia coli/*chemistry/metabolism ; Escherichia coli Proteins/*chemistry/genetics/metabolism ; Hydrogen Bonding ; Hydrogen-Ion Concentration ; Hydrophobic and Hydrophilic Interactions ; Liposomes ; Membrane Potentials ; Models, Molecular ; Molecular Sequence Data ; Protein Conformation ; Protein Folding ; Protein Structure, Quaternary ; Protein Structure, Secondary ; Quaternary Ammonium Compounds/metabolism ; Rh-Hr Blood-Group System/chemistry/metabolism ; Sequence Alignment ; Water/chemistry/metabolism
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  • 75
    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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  • 76
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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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  • 77
    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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  • 78
    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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  • 79
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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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  • 80
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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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  • 81
    Publication Date: 2004-02-21
    Description: Cyclic nucleotides regulate axonal responses to a number of guidance cues through unknown molecular events. We report here that Drosophila nervy, a member of the myeloid translocation gene family of A kinase anchoring proteins (AKAPs), regulates repulsive axon guidance by linking the cyclic adenosine monophosphate (cAMP)-dependent protein kinase (PKA) to the Semaphorin 1a (Sema-1a) receptor Plexin A (PlexA). Nervy and PKA antagonize Sema-1a-PlexA-mediated repulsion, and the AKAP binding region of Nervy is critical for this effect. Thus, Nervy couples cAMP-PKA signaling to PlexA to regulate Sema-1a-mediated axonal repulsion, revealing a simple molecular mechanism that allows growing axons to integrate inputs from multiple guidance cues.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Terman, Jonathan R -- Kolodkin, Alex L -- New York, N.Y. -- Science. 2004 Feb 20;303(5661):1204-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroscience, Johns Hopkins University School of Medicine, 1001 PCTB/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/14976319" target="_blank"〉PubMed〈/a〉
    Keywords: *Adaptor Proteins, Signal Transducing ; Amino Acid Sequence ; Amino Acid Substitution ; Animals ; Animals, Genetically Modified ; Axons/*physiology/ultrastructure ; Carrier Proteins/chemistry/*metabolism ; Central Nervous System/embryology ; Cues ; Cyclic AMP-Dependent Protein Kinases/*metabolism ; Drosophila/cytology/*embryology/genetics/metabolism ; Drosophila Proteins/chemistry/*metabolism ; Embryo, Nonmammalian/cytology/metabolism/physiology ; Molecular Sequence Data ; Motor Neurons/metabolism/*physiology/ultrastructure ; Muscles/embryology/innervation/metabolism ; Mutation ; Nerve Tissue Proteins/*metabolism ; Neural Pathways ; Phenotype ; Receptors, Cell Surface/*metabolism ; Semaphorins/*metabolism ; Signal Transduction ; Transgenes
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  • 82
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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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  • 83
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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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  • 84
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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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  • 85
    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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  • 86
    Publication Date: 2004-10-09
    Description: We identified a previously unknown riboswitch class in bacteria that is selectively triggered by glycine. A representative of these glycine-sensing RNAs from Bacillus subtilis operates as a rare genetic on switch for the gcvT operon, which codes for proteins that form the glycine cleavage system. Most glycine riboswitches integrate two ligand-binding domains that function cooperatively to more closely approximate a two-state genetic switch. This advanced form of riboswitch may have evolved to ensure that excess glycine is efficiently used to provide carbon flux through the citric acid cycle and maintain adequate amounts of the amino acid for protein synthesis. Thus, riboswitches perform key regulatory roles and exhibit complex performance characteristics that previously had been observed only with protein factors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mandal, Maumita -- Lee, Mark -- Barrick, Jeffrey E -- Weinberg, Zasha -- Emilsson, Gail Mitchell -- Ruzzo, Walter L -- Breaker, Ronald R -- New York, N.Y. -- Science. 2004 Oct 8;306(5694):275-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular, Cellular, and Developmental Biology, Yale University, Post Office Box 208103, New Haven, CT 06520-8103, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15472076" target="_blank"〉PubMed〈/a〉
    Keywords: 5' Untranslated Regions/chemistry/*metabolism ; Allosteric Regulation ; Allosteric Site ; Bacillus subtilis/*genetics/metabolism ; Base Pairing ; Base Sequence ; Binding Sites ; *Gene Expression Regulation, Bacterial ; Glycine/*metabolism ; Ligands ; Molecular Sequence Data ; Mutation ; Nucleic Acid Conformation ; Operon ; RNA, Bacterial/chemistry/*metabolism ; RNA, Messenger/chemistry/*metabolism ; Transcription, Genetic ; Vibrio cholerae/*genetics/metabolism
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  • 87
    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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  • 88
    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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  • 89
    Publication Date: 2004-05-08
    Description: Over 99% of modern animals are members of the evolutionary lineage Bilateria. The evolutionary success of Bilateria is credited partly to the origin of bilateral symmetry. Although animals of the phylum Cnidaria are not within the Bilateria, some representatives, such as the sea anemone Nematostella vectensis, exhibit bilateral symmetry. We show that Nematostella uses homologous genes to achieve bilateral symmetry: Multiple Hox genes are expressed in a staggered fashion along its primary body axis, and the transforming growth factor-beta gene decapentaplegic (dpp) is expressed in an asymmetric fashion about its secondary body axis. These data suggest that bilateral symmetry arose before the evolutionary split of Cnidaria and Bilateria.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Finnerty, John R -- Pang, Kevin -- Burton, Pat -- Paulson, Dave -- Martindale, Mark Q -- New York, N.Y. -- Science. 2004 May 28;304(5675):1335-7. Epub 2004 May 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Boston University, 5 Cummington Street, Boston, MA 02215, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15131263" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Body Patterning ; Endoderm/physiology ; Gene Duplication ; Gene Expression Profiling ; *Gene Expression Regulation, Developmental ; Genes ; *Genes, Homeobox ; In Situ Hybridization ; Larva/genetics/growth & development ; Molecular Sequence Data ; Phylogeny ; Sea Anemones/*anatomy & histology/embryology/*genetics/growth & development
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  • 90
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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〉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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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 91
    Publication Date: 2004-04-17
    Description: Parkinson's disease (PD) is a neurodegenerative disorder characterized by degeneration of dopaminergic neurons in the substantia nigra. We previously mapped a locus for a rare familial form of PD to chromosome 1p36 (PARK6). Here we show that mutations in PINK1 (PTEN-induced kinase 1) are associated with PARK6. We have identified two homozygous mutations affecting the PINK1 kinase domain in three consanguineous PARK6 families: a truncating nonsense mutation and a missense mutation at a highly conserved amino acid. Cell culture studies suggest that PINK1 is mitochondrially located and may exert a protective effect on the cell that is abrogated by the mutations, resulting in increased susceptibility to cellular stress. These data provide a direct molecular link between mitochondria and the pathogenesis of PD.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Valente, Enza Maria -- Abou-Sleiman, Patrick M -- Caputo, Viviana -- Muqit, Miratul M K -- Harvey, Kirsten -- Gispert, Suzana -- Ali, Zeeshan -- Del Turco, Domenico -- Bentivoglio, Anna Rita -- Healy, Daniel G -- Albanese, Alberto -- Nussbaum, Robert -- Gonzalez-Maldonado, Rafael -- Deller, Thomas -- Salvi, Sergio -- Cortelli, Pietro -- Gilks, William P -- Latchman, David S -- Harvey, Robert J -- Dallapiccola, Bruno -- Auburger, Georg -- Wood, Nicholas W -- G-4029/Parkinson's UK/United Kingdom -- GGP02089/Telethon/Italy -- New York, N.Y. -- Science. 2004 May 21;304(5674):1158-60. Epub 2004 Apr 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉CSS IRCCS, Mendel Institute, viale Regina Margherita 261, 00198 Rome, Italy. e.valente@css-mendel.it〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15087508" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Apoptosis ; COS Cells ; Cell Line, Tumor ; Codon, Nonsense ; Exons ; Humans ; Leupeptins/pharmacology ; Membrane Potentials ; Mitochondria/enzymology/*metabolism ; Molecular Sequence Data ; *Mutation ; Mutation, Missense ; Neurons/metabolism/physiology ; Oxidative Stress ; Parkinson Disease/enzymology/*genetics/metabolism ; Protein Kinases/chemistry/*genetics/*metabolism ; Protein Structure, Tertiary ; Transfection
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 92
    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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  • 93
    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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  • 94
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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):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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  • 95
    Publication Date: 2004-08-07
    Description: Vesicle fusion involves vesicle tethering, docking, and membrane merger. We show that mitofusin, an integral mitochondrial membrane protein, is required on adjacent mitochondria to mediate fusion, which indicates that mitofusin complexes act in trans (that is, between adjacent mitochondria). A heptad repeat region (HR2) mediates mitofusin oligomerization by assembling a dimeric, antiparallel coiled coil. The transmembrane segments are located at opposite ends of the 95 angstrom coiled coil and provide a mechanism for organelle tethering. Consistent with this proposal, truncated mitofusin, in an HR2-dependent manner, causes mitochondria to become apposed with a uniform gap. Our results suggest that HR2 functions as a mitochondrial tether before fusion.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koshiba, Takumi -- Detmer, Scott A -- Kaiser, Jens T -- Chen, Hsiuchen -- McCaffery, J Michael -- Chan, David C -- R01 GM62967/GM/NIGMS NIH HHS/ -- S10 RR019409-01/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2004 Aug 6;305(5685):858-62.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biology, California Institute of Technology, 1200 East California Boulevard, MC114-96, Pasadena, CA 91125, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15297672" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amino Acid Substitution ; Animals ; Cell Line ; Crystallography, X-Ray ; Dimerization ; GTP Phosphohydrolases/*chemistry/*metabolism ; Humans ; Hybrid Cells ; Hydrophobic and Hydrophilic Interactions ; Intracellular Membranes/physiology/ultrastructure ; Membrane Fusion ; Mice ; Mitochondria/*metabolism/ultrastructure ; Models, Molecular ; Molecular Sequence Data ; Mutation ; Protein Structure, Secondary ; Protein Structure, Tertiary
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  • 96
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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
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 97
    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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  • 98
    Publication Date: 2004-10-02
    Description: Large RNA molecules, such as ribozymes, fold with well-defined tertiary structures that are important for their activity. There are many instances of ribozymes with identical function but differences in their secondary structures, suggesting alternative tertiary folds. Here, we report a crystal structure of the 161-nucleotide specificity domain of an A-type ribonuclease P that differs in secondary and tertiary structure from the specificity domain of a B-type molecule. Despite the differences, the cores of the domains have similar three-dimensional structure. Remarkably, the similar geometry of the cores is stabilized by a different set of interactions involving distinct auxiliary elements.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Krasilnikov, Andrey S -- Xiao, Yinghua -- Pan, Tao -- Mondragon, Alfonso -- New York, N.Y. -- Science. 2004 Oct 1;306(5693):104-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Molecular Biology, and Cell Biology, Northwestern University, Evanston, IL 60208, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15459389" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Catalytic Domain ; Conserved Sequence ; Crystallography, X-Ray ; Hydrogen Bonding ; Models, Molecular ; Molecular Sequence Data ; Nucleic Acid Conformation ; Phylogeny ; RNA Precursors/chemistry/metabolism ; RNA, Bacterial/*chemistry/metabolism ; RNA, Transfer/chemistry/metabolism ; Ribonuclease P/*chemistry/metabolism ; Ribonucleotides/chemistry/metabolism ; Thermus thermophilus/*chemistry/enzymology
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  • 99
    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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  • 100
    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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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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