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  • *Ecosystem  (605)
  • Cell Line  (502)
  • American Association for the Advancement of Science (AAAS)  (1,107)
  • Elsevier
  • Oxford University Press
  • Springer
  • Taylor & Francis
  • 2000-2004  (950)
  • 1980-1984  (157)
  • 1935-1939
Collection
Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (1,107)
  • Elsevier
  • Oxford University Press
  • Springer
  • Taylor & Francis
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Year
  • 1
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    Direct recognition of cytomegalovirus by activating and inhibitory NK cell receptors (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-04-16
    Description: Natural killer (NK) cells express inhibitory receptors for major histocompatibility complex (MHC) class I antigens, preventing attack against healthy cells. Mouse cytomegalovirus (MCMV) encodes an MHC-like protein (m157) that binds to an inhibitory NK cell receptor in certain MCMV-susceptible mice. In MCMV-resistant mice, this viral protein engages a related activating receptor (Ly49H) and confers host protection. These activating and inhibitory receptors are highly homologous, suggesting the possibility that one evolved from the other in response to selective pressure imposed by the pathogen.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arase, Hisashi -- Mocarski, Edward S -- Campbell, Ann E -- Hill, Ann B -- Lanier, Lewis L -- AI30363/AI/NIAID NIH HHS/ -- CA89294/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2002 May 17;296(5571):1323-6. Epub 2002 Apr 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology and the Cancer Research Institute, University of California San Francisco, San Francisco, CA 94143, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11950999" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Animals ; Antigens, Ly/chemistry/genetics/*immunology/metabolism ; Cell Line ; Coculture Techniques ; Disease Susceptibility ; Evolution, Molecular ; Herpesviridae Infections/*immunology ; Histocompatibility Antigens Class I/immunology ; Hybridomas ; Immunity, Innate ; Interferon-gamma/biosynthesis ; Killer Cells, Natural/*immunology ; Lectins, C-Type ; Ligands ; Lymphocyte Activation ; Membrane Glycoproteins/chemistry/genetics/*immunology/metabolism ; Mice ; Mice, Inbred C57BL ; Mice, Inbred Strains ; Muromegalovirus/genetics/*immunology/metabolism ; NK Cell Lectin-Like Receptor Subfamily A ; Protein Binding ; Receptors, Immunologic/chemistry/genetics/*immunology/metabolism ; Receptors, NK Cell Lectin-Like ; Recombinant Fusion Proteins/metabolism ; Transfection ; Viral Proteins/chemistry/genetics/*immunology/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Genetics. Please don't call it cloning! (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-02-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vogelstein, Bert -- Alberts, Bruce -- Shine, Kenneth -- New York, N.Y. -- Science. 2002 Feb 15;295(5558):1237.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Kimmel Cancer Center at Johns Hopkins University, Baltimore, MD 21231, USA. vogelbe@welch.jhu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11847324" target="_blank"〉PubMed〈/a〉
    Keywords: Bioethical Issues ; Cell Line ; *Cloning, Organism/legislation & jurisprudence ; Embryo Research ; Embryo, Mammalian/*cytology ; Humans ; *Nuclear Transfer Techniques ; *Stem Cells ; *Terminology as Topic ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    Climate change and latitudinal patterns of intertidal thermal stress (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-11-02
    Description: The interaction of climate and the timing of low tides along the West Coast of the United States creates a complex mosaic of thermal environments, in which northern sites can be more thermally stressful than southern sites. Thus, climate change may not lead to a poleward shift in the distribution of intertidal organisms, as has been proposed, but instead will likely cause localized extinctions at a series of "hot spots." Patterns of exposure to extreme climatic conditions are temporally variable, and tidal predictions suggest that in the next 3 to 5 years "hot spots" are likely to appear at several northern sites.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Helmuth, Brian -- Harley, Christopher D G -- Halpin, Patricia M -- O'Donnell, Michael -- Hofmann, Gretchen E -- Blanchette, Carol A -- New York, N.Y. -- Science. 2002 Nov 1;298(5595):1015-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University of South Carolina, Department of Biological Sciences and Marine Sciences Program, Columbia, SC 29208, USA. helmuth@biol.sc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12411702" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bivalvia/*physiology ; *Body Temperature ; *Climate ; *Ecosystem ; Environment ; Geography ; Pacific Ocean ; Pacific States ; Seasons ; *Seawater ; Temperature ; *Water Movements
    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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    Hybridization and the evolution of reef coral diversity (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-06-18
    Description: Hundreds of coral species coexist sympatrically on reefs, reproducing in mass-spawning events where hybridization appears common. In the Caribbean, DNA sequence data from all three sympatric Acropora corals show that mass spawning does not erode species barriers. Species A. cervicornis and A. palmata are distinct at two nuclear loci or share ancestral alleles. Morphotypes historically given the name Acropora prolifera are entirely F(1) hybrids of these two species, showing morphologies that depend on which species provides the egg for hybridization. Although selection limits the evolutionary potential of hybrids, F(1) individuals can reproduce asexually and form long-lived, potentially immortal hybrids with unique morphologies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vollmer, Steven V -- Palumbi, Stephen R -- New York, N.Y. -- Science. 2002 Jun 14;296(5575):2023-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Organismic and Evolutionary Biology, Harvard University, 16 Divinity Avenue, Cambridge, MA 02138, USA. svollmer@oeb.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12065836" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bayes Theorem ; *Biological Evolution ; Calmodulin/genetics ; Caribbean Region ; Cnidaria/anatomy & histology/*classification/*genetics/physiology ; Collagen/genetics ; DNA, Mitochondrial/genetics ; *Ecosystem ; Environment ; *Genetic Variation ; Haplotypes ; *Hybridization, Genetic ; Introns ; Likelihood Functions ; Polymorphism, Genetic ; Reproduction ; Reproduction, Asexual ; Sequence Analysis, DNA ; Species Specificity
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    Taxonomists' requiem? (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-01-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Samyn, Yves -- Massin, Claude -- New York, N.Y. -- Science. 2002 Jan 11;295(5553):276-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11789538" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Classification ; *Ecosystem ; Invertebrates/classification ; Plants/classification ; *Publishing
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Ecology. Soil fertility and hunger in Africa (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-03-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sanchez, Pedro A -- New York, N.Y. -- Science. 2002 Mar 15;295(5562):2019-20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉International Center for Research in Agroforestry, Post Office Box 30677, Nairobi, Kenya. P.sanchez@cgiar.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11896257" target="_blank"〉PubMed〈/a〉
    Keywords: Africa South of the Sahara ; Agriculture/*methods ; Biomass ; Crops, Agricultural/*growth & development ; *Ecosystem ; Fertilizers ; *Food Supply ; Forestry ; Humans ; Hunger ; Nitrogen ; Nitrogen Fixation ; Phosphates ; Plant Development ; Public Policy ; *Soil ; Trees/growth & development ; United Nations ; Zea mays/growth & development
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    Inhibition of excess nodal signaling during mouse gastrulation by the transcriptional corepressor DRAP1 (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-12-10
    Description: The formation and patterning of mesoderm during mammalian gastrulation require the activity of Nodal, a secreted mesoderm-inducing factor of the transforming growth factor-beta (TGF-beta) family. Here we show that the transcriptional corepressor DRAP1 has a very specific role in regulation of Nodal activity during mouse embryogenesis. We find that loss of Drap1 leads to severe gastrulation defects that are consistent with increased expression of Nodal and can be partially suppressed by Nodal heterozygosity. Biochemical studies indicate that DRAP1 interacts with and inhibits DNA binding by the winged-helix transcription factor FoxH1 (FAST), a critical component of a positive feedback loop for Nodal activity. We propose that DRAP1 limits the spread of a morphogenetic signal by down-modulating the response to the Nodal autoregulatory loop.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Iratni, Rabah -- Yan, Yu-Ting -- Chen, Canhe -- Ding, Jixiang -- Zhang, Yi -- Price, Sandy M -- Reinberg, Danny -- Shen, Michael M -- New York, N.Y. -- Science. 2002 Dec 6;298(5600):1996-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Department of Biochemistry, Division of Nucleic Acids Enzymology, University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School, Piscataway, NJ 08854, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12471260" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Cell Line ; Crosses, Genetic ; DNA/metabolism ; DNA-Binding Proteins/metabolism ; *Embryonic and Fetal Development ; Female ; Forkhead Transcription Factors ; Gastrula/*physiology ; Gene Expression Regulation, Developmental ; Gene Targeting ; Heterozygote ; In Situ Hybridization ; Left-Right Determination Factors ; Male ; Mesoderm/cytology/physiology ; Mice ; Morphogenesis ; Mutation ; Nodal Protein ; Phenotype ; Protein Binding ; RNA Interference ; Recombinant Fusion Proteins/metabolism ; Repressor Proteins/genetics/*metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; *Signal Transduction ; Transcription Factors/metabolism ; Transforming Growth Factor beta/genetics/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    Historical essay. The early years of HIV/AIDS (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-12-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gallo, Robert C -- New York, N.Y. -- Science. 2002 Nov 29;298(5599):1728-30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Human Virology and Department of Microbiology and Immunology, University of Maryland, Baltimore, MD 21201, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12459576" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS Serodiagnosis/history ; Acquired Immunodeficiency Syndrome/diagnosis/*history/immunology/virology ; CD4-Positive T-Lymphocytes/virology ; Cell Line ; Cells, Cultured ; France ; *HIV/classification/isolation & purification/physiology ; History, 20th Century ; Human T-lymphotropic virus 1/isolation & purification/physiology ; Human T-lymphotropic virus 2/isolation & purification/physiology ; Humans ; Interleukin-2/history/isolation & purification/physiology ; Patents as Topic/history ; RNA-Directed DNA Polymerase/history/isolation & purification/metabolism ; United States ; Virus Cultivation
    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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  • 9
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    Assessing environmental changes in grasslands (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-03-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mitchell, Charles E -- Reich, Peter B -- New York, N.Y. -- Science. 2003 Mar 21;299(5614):1844-5; author reply 1844-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12649464" target="_blank"〉PubMed〈/a〉
    Keywords: Atmosphere ; Biomass ; California ; *Carbon Dioxide ; Climate ; *Ecosystem ; Fungi/pathogenicity ; Nitrogen ; *Plant Diseases ; Plant Roots/growth & development ; Poaceae/*growth & development/*microbiology ; Temperature
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
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    Caspian Sea. Scientists deplore OK for sturgeon catch (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-03-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stone, Richard -- New York, N.Y. -- Science. 2002 Mar 22;295(5563):2191.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11910078" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Commerce/economics ; Conservation of Natural Resources ; *Ecosystem ; *Fishes/physiology ; *Food Supply/economics/standards ; Marine Biology ; Oceans and Seas ; Russia
    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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  • 11
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    Invasive species. California tries to rub out the monster of the lagoon (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-03-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Withgott, Jay -- New York, N.Y. -- Science. 2002 Mar 22;295(5563):2201-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11910088" target="_blank"〉PubMed〈/a〉
    Keywords: Australia ; Biomass ; California ; *Ecosystem ; Environment ; Food Chain ; Herbicides/administration & dosage/pharmacology ; Mediterranean Region ; Seawater/*parasitology ; Seaweed/drug effects/*physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 12
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    Ecology. Out of the vault, into the forest (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-09-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Malakoff, David -- New York, N.Y. -- Science. 2002 Sep 27;297(5590):2196.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12351768" target="_blank"〉PubMed〈/a〉
    Keywords: Arizona ; *Ecosystem ; Maps as Topic ; *Pinus ; *Trees
    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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  • 13
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    Ecology. New count of old whales adds up to big debate (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-07-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lubick, Naomi -- New York, N.Y. -- Science. 2003 Jul 25;301(5632):451.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12881542" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Atlantic Ocean ; Conservation of Natural Resources ; DNA, Mitochondrial/genetics ; *Ecosystem ; Female ; Genetic Variation ; Genetics, Population ; Male ; Mutation ; Population Density ; Population Dynamics ; Time Factors ; *Whales/genetics
    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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  • 14
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    Reversing the inactivation of peroxiredoxins caused by cysteine sulfinic acid formation (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-04-26
    Description: The active-site cysteine of peroxiredoxins is selectively oxidized to cysteine sulfinic acid during catalysis, which leads to inactivation of peroxidase activity. This oxidation was thought to be irreversible. However, by metabolic labeling of mammalian cells with 35S, we show that the sulfinic form of peroxiredoxin I, produced during the exposure of cells to H2O2, is rapidly reduced to the catalytically active thiol form. The mammalian cells' ability to reduce protein sulfinic acid might serve as a mechanism to repair oxidatively damaged proteins or represent a new type of cyclic modification by which the function of various proteins is regulated.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Woo, Hyun Ae -- Chae, Ho Zoon -- Hwang, Sung Chul -- Yang, Kap-Seok -- Kang, Sang Won -- Kim, Kanghwa -- Rhee, Sue Goo -- New York, N.Y. -- Science. 2003 Apr 25;300(5619):653-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Cell Signaling Research and Division of Molecular Life Sciences, Ewha Womans University, Seoul 120-750, Korea.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12714748" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Catalysis ; Cell Line ; Cycloheximide/pharmacology ; Cysteine/*analogs & derivatives/*metabolism ; Dimerization ; HeLa Cells ; Humans ; Hydrogen Peroxide/*metabolism ; Methionine/metabolism ; Mice ; Neurotransmitter Agents ; Oxidation-Reduction ; Peroxidases/chemistry/*metabolism ; Peroxiredoxins ; Protein Synthesis Inhibitors/pharmacology ; Spectrometry, Mass, Electrospray Ionization ; Sulfhydryl Compounds/metabolism ; Sulfinic Acids/metabolism ; Tumor Cells, Cultured
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 15
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    Whales before whaling in the North Atlantic (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-07-26
    Description: It is well known that hunting dramatically reduced all baleen whale populations, yet reliable estimates of former whale abundances are elusive. Based on coalescent models for mitochondrial DNA sequence variation, the genetic diversity of North Atlantic whales suggests population sizes of approximately 240,000 humpback, 360,000 fin, and 265,000 minke whales. Estimates for fin and humpback whales are far greater than those previously calculated for prewhaling populations and 6 to 20 times higher than present-day population estimates. Such discrepancies suggest the need for a quantitative reevaluation of historical whale populations and a fundamental revision in our conception of the natural state of the oceans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roman, Joe -- Palumbi, Stephen R -- New York, N.Y. -- Science. 2003 Jul 25;301(5632):508-10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Organismic and Evolutionary Biology, Harvard University, 16 Divinity Avenue, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12881568" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Atlantic Ocean ; Base Sequence ; Conservation of Natural Resources ; DNA, Mitochondrial/genetics ; *Ecosystem ; Female ; Genetic Variation ; Genetics, Population ; Male ; Molecular Sequence Data ; Population Density ; Population Dynamics ; Time Factors ; *Whales/classification/genetics
    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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  • 16
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    Arctic ecology. For precarious populations, pollutants present new perils (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-03-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Webster, Paul -- New York, N.Y. -- Science. 2003 Mar 14;299(5613):1642.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12637710" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arctic Regions ; Canada ; *Ecosystem ; Environmental Exposure/*adverse effects ; Environmental Pollutants/*analysis ; Female ; Humans ; Infant ; Infection/epidemiology/etiology ; *Inuits ; Memory ; Risk Factors
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 17
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    Agrobiotechnology. Mixed message could prove costly for GM crops (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-10-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stokstad, Erik -- Vogel, Gretchen -- New York, N.Y. -- Science. 2003 Oct 24;302(5645):542-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14576384" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Beta vulgaris/genetics/growth & development ; Biotechnology ; Brassica napus/genetics/growth & development ; Crops, Agricultural/*genetics/growth & development ; *Ecosystem ; *Environment ; Great Britain ; Herbicides ; *Plants, Genetically Modified/growth & development ; Zea mays/genetics/growth & development
    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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    Insulin staining of ES cell progeny from insulin uptake (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-01-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rajagopal, Jayaraj -- Anderson, William J -- Kume, Shoen -- Martinez, Olga I -- Melton, Douglas A -- New York, N.Y. -- Science. 2003 Jan 17;299(5605):363.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cellular Biology, Howard Hughes Medical Institute, Harvard University, 7 Divinity Avenue, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12532008" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies/immunology ; Apoptosis ; Cell Differentiation ; Cell Line ; Embryo, Mammalian/*cytology ; Humans ; Insulin/*analysis/genetics/immunology/*metabolism ; Islets of Langerhans/*cytology/metabolism ; Mice ; Microscopy, Confocal ; RNA, Messenger/genetics/metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; Stem Cells/*cytology/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Response of a deciduous forest to the Mount Pinatubo eruption: enhanced photosynthesis (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-03-29
    Description: Volcanic aerosols from the 1991 Mount Pinatubo eruption greatly increased diffuse radiation worldwide for the following 2 years. We estimated that this increase in diffuse radiation alone enhanced noontime photosynthesis of a deciduous forest by 23% in 1992 and 8% in 1993 under cloudless conditions. This finding indicates that the aerosol-induced increase in diffuse radiation by the volcano enhanced the terrestrial carbon sink and contributed to the temporary decline in the growth rate of atmospheric carbon dioxide after the eruption.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gu, Lianhong -- Baldocchi, Dennis D -- Wofsy, Steve C -- Munger, J William -- Michalsky, Joseph J -- Urbanski, Shawn P -- Boden, Thomas A -- New York, N.Y. -- Science. 2003 Mar 28;299(5615):2035-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Environmental Sciences Division, Building 1509, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6335, USA. lianhong-gu@ornl.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12663919" target="_blank"〉PubMed〈/a〉
    Keywords: Aerosols ; *Atmosphere ; *Carbon Dioxide/metabolism ; Climate ; *Ecosystem ; Mathematics ; Models, Statistical ; Nonlinear Dynamics ; Philippines ; *Photosynthesis ; Regression Analysis ; Scattering, Radiation ; Seasons ; Sunlight ; Temperature ; Trees/*metabolism ; *Volcanic Eruptions
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Coral reef death during the 1997 Indian Ocean Dipole linked to Indonesian wildfires (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-08-16
    Description: Geochemical anomalies and growth discontinuities in Porites corals from western Sumatra, Indonesia, record unanticipated reef mortality during anomalous Indian Ocean Dipole upwelling and a giant red tide in 1997. Sea surface temperature reconstructions show that although some past upwelling events have been stronger, there were no analogous episodes of coral mortality during the past 7000 years, indicating that the 1997 red tide was highly unusual. We show that iron fertilization by the 1997 Indonesian wildfires was sufficient to produce the extraordinary red tide, leading to reef death by asphyxiation. These findings highlight tropical wildfires as an escalating threat to coastal marine ecosystems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Abram, Nerilie J -- Gagan, Michael K -- McCulloch, Malcolm T -- Chappell, John -- Hantoro, Wahyoe S -- New York, N.Y. -- Science. 2003 Aug 15;301(5635):952-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Research School of Earth Sciences, Australian National University, Canberra, ACT 0200, Australia. nerilie.abram@anu.edu.au〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12920295" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anthozoa/*growth & development ; Atmosphere ; Biomass ; Dinoflagellida/growth & development ; *Ecosystem ; *Eutrophication ; *Fires ; Indian Ocean ; Indonesia ; Iron ; Phytoplankton/growth & development ; Population Dynamics ; Temperature
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Evolution. Climb every mountain? (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-12-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Elena, Santiago F -- Sanjuan, Rafael -- New York, N.Y. -- Science. 2003 Dec 19;302(5653):2074-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Instituto de Biologia Molecular y Celular de Plantas, Consejo Superior de Investigaciones Cientificas-UPV, 46022 Valencia, Spain. sfelena@ibmcp.upv.es〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14684807" target="_blank"〉PubMed〈/a〉
    Keywords: *Adaptation, Physiological ; Animals ; *Biological Evolution ; Chlamydomonas/physiology ; Darkness ; *Ecosystem ; Environment ; *Genetic Variation ; Genotype ; Light ; Mutation ; Phenotype ; Pseudomonas fluorescens/genetics/*physiology ; RNA Viruses/physiology ; Selection, Genetic
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    Carbon in Amazon forests: unexpected seasonal fluxes and disturbance-induced losses (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-12-04
    Description: The net ecosystem exchange of carbon dioxide was measured by eddy covariance methods for 3 years in two old-growth forest sites near Santarem, Brazil. Carbon was lost in the wet season and gained in the dry season, which was opposite to the seasonal cycles of both tree growth and model predictions. The 3-year average carbon loss was 1.3 (confidence interval: 0.0 to 2.0) megagrams of carbon per hectare per year. Biometric observations confirmed the net loss but imply that it is a transient effect of recent disturbance superimposed on long-term balance. Given that episodic disturbances are characteristic of old-growth forests, it is likely that carbon sequestration is lower than has been inferred from recent eddy covariance studies at undisturbed sites.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Saleska, Scott R -- Miller, Scott D -- Matross, Daniel M -- Goulden, Michael L -- Wofsy, Steven C -- da Rocha, Humberto R -- de Camargo, Plinio B -- Crill, Patrick -- Daube, Bruce C -- de Freitas, Helber C -- Hutyra, Lucy -- Keller, Michael -- Kirchhoff, Volker -- Menton, Mary -- Munger, J William -- Pyle, Elizabeth Hammond -- Rice, Amy H -- Silva, Hudson -- New York, N.Y. -- Science. 2003 Nov 28;302(5650):1554-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA 02138, USA. saleska@fas.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14645845" target="_blank"〉PubMed〈/a〉
    Keywords: Brazil ; Carbon/*analysis/metabolism ; Carbon Dioxide/*analysis/metabolism ; Confidence Intervals ; *Ecosystem ; Oxygen Consumption ; Photosynthesis ; Rain ; *Seasons ; *Trees/growth & development/metabolism ; Wood
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    Paleobiology. Megafauna died from big kill, not big chill (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-05-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kerr, Richard A -- New York, N.Y. -- Science. 2003 May 9;300(5621):885.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12738825" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Ascomycota ; Charcoal ; Climate ; *Ecosystem ; Feces/microbiology ; Geologic Sediments ; Humans ; Madagascar ; *Mammals ; New York ; *Paleontology ; Pollen ; Population Dynamics ; *Spores, Fungal
    Print ISSN: 0036-8075
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    From anchovies to sardines and back: multidecadal change in the Pacific Ocean (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-01-11
    Description: In the Pacific Ocean, air and ocean temperatures, atmospheric carbon dioxide, landings of anchovies and sardines, and the productivity of coastal and open ocean ecosystems have varied over periods of about 50 years. In the mid-1970s, the Pacific changed from a cool "anchovy regime" to a warm "sardine regime." A shift back to an anchovy regime occurred in the middle to late 1990s. These large-scale, naturally occurring variations must be taken into account when considering human-induced climate change and the management of ocean living resources.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chavez, Francisco P -- Ryan, John -- Lluch-Cota, Salvador E -- Niquen C, Miguel -- New York, N.Y. -- Science. 2003 Jan 10;299(5604):217-21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Monterey Bay Aquarium Research Institute, 7700 Sandholdt Road, Moss Landing, CA 95039, USA. chfr@mbari.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12522241" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Atmosphere ; Birds ; Carbon Dioxide ; *Climate ; *Ecosystem ; *Fishes ; Pacific Ocean ; *Seawater ; Temperature ; Time Factors
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    Ocean exploration. Deep-sea mountaineering (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-08-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Malakoff, David -- New York, N.Y. -- Science. 2003 Aug 22;301(5636):1034-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12933987" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Anthozoa ; Atlantic Ocean ; Conservation of Natural Resources ; *Ecosystem ; Environment ; Fisheries ; *Fishes ; Geologic Sediments ; *Marine Biology ; Pacific Ocean ; *Seawater
    Print ISSN: 0036-8075
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    Seasonal dynamics of previously unknown fungal lineages in tundra soils (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-09-06
    Description: The finding that microbial communities are active under snow has changed the estimated global rates of biogeochemical processes beneath seasonal snow packs. We used microbiological and molecular techniques to elucidate the phylogenetic composition of undersnow microbial communities in Colorado, the United States. Here, we show that tundra soil microbial biomass reaches its annual peak under snow, and that fungi account for most of the biomass. Phylogenetic analysis of tundra soil fungi revealed a high diversity of fungi and three novel clades that constitute major new groups of fungi (divergent at the subphylum or class level). An abundance of previously unknown fungi that are active beneath the snow substantially broadens our understanding of both the diversity and biogeochemical functioning of fungi in cold environments.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schadt, Christopher W -- Martin, Andrew P -- Lipson, David A -- Schmidt, Steven K -- New York, N.Y. -- Science. 2003 Sep 5;301(5638):1359-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, CO 80309-0334, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12958355" target="_blank"〉PubMed〈/a〉
    Keywords: Ascomycota/classification/genetics/growth & development/isolation & purification ; Basidiomycota/classification/genetics/growth & development/isolation & ; purification ; Bayes Theorem ; Biomass ; *Cold Climate ; Colorado ; DNA, Fungal/analysis/genetics ; *Ecosystem ; Fungi/*classification/genetics/*growth & development/isolation & purification ; Phylogeny ; *Seasons ; Snow ; *Soil Microbiology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    First black carp captured in U.S (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-06-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chick, John H -- Maher, Robert J -- Burr, Brooks M -- Thomas, Matthew R -- New York, N.Y. -- Science. 2003 Jun 20;300(5627):1876-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12817125" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aquaculture ; Bivalvia ; *Carps/classification ; Conservation of Natural Resources ; *Ecosystem ; Fresh Water ; Illinois
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    Will direct payments help biodiversity? (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-03-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Swart, Jac A A -- New York, N.Y. -- Science. 2003 Mar 28;299(5615):1981-2; author reply 1981-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12663896" target="_blank"〉PubMed〈/a〉
    Keywords: Conservation of Natural Resources/*economics ; Cost-Benefit Analysis ; *Ecosystem ; Financial Management
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    The threat to cone snails (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-10-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chivian, Eric -- Roberts, Callum M -- Bernstein, Aaron S -- New York, N.Y. -- Science. 2003 Oct 17;302(5644):391.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14563988" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anthozoa ; Biomedical Research ; Conotoxins ; *Conservation of Natural Resources ; *Ecosystem ; Environment ; *Snails
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    Single molecule profiling of alternative pre-mRNA splicing (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-08-09
    Description: Alternative pre-messenger RNA splicing is an important mechanism for generating protein diversity and may explain in part how mammalian complexity arises from a surprisingly small complement of genes. Here, we describe "digital polony exon profiling,"a single molecule-based technology for studying complex alternative pre-messenger RNA splicing. This technology allows researchers to monitor the combinatorial diversity of exon inclusion in individual transcripts. A minisequencing strategy provides single nucleotide resolution, and the digital nature of the technology allows quantitation of individual splicing variants. Digital polony exon profiling can be used to investigate the physiological and pathological roles of alternately spliced messenger RNAs, as well as the mechanisms by which these messenger RNAs are produced.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhu, Jun -- Shendure, Jay -- Mitra, Robi D -- Church, George M -- 5U54GM62119/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2003 Aug 8;301(5634):836-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Harvard Medical School, 200 Longwood Avenue, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12907803" target="_blank"〉PubMed〈/a〉
    Keywords: Acrylamide ; *Alternative Splicing ; Animals ; Antigens, CD44/genetics ; Brain/metabolism ; Cell Line ; Cell Line, Transformed ; Cyclic AMP Response Element-Binding Protein ; *Exons ; Humans ; Mice ; Microtubule-Associated Proteins/genetics ; Nerve Tissue Proteins/genetics ; Polymerase Chain Reaction/*methods ; Polymorphism, Single Nucleotide ; Protein Isoforms ; RNA Precursors/*genetics/metabolism ; RNA-Binding Proteins ; SMN Complex Proteins
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    Conservation in the real world (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-09-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sinclair, A R -- Ludwig, D -- Clark, C W -- New York, N.Y. -- Science. 2000 Sep 15;289(5486):1875.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11012354" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Conservation of Natural Resources/methods ; *Ecosystem ; Humans ; Residence Characteristics
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    Economic incentives for rain forest conservation across scales (2000)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2000-06-10
    Description: Globally, tropical deforestation releases 20 to 30% of anthropogenic greenhouse gases. Conserving forests could reduce emissions, but the cost-effectiveness of this mechanism for mitigation depends on the associated opportunity costs. We estimated these costs from local, national, and global perspectives using a case study from Madagascar. Conservation generated significant benefits over logging and agriculture locally and globally. Nationally, however, financial benefits from industrial logging were larger than conservation benefits. Such differing economic signals across scales may exacerbate tropical deforestation. The Kyoto Protocol could potentially overcome this obstacle to conservation by creating markets for protection of tropical forests to mitigate climate change.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kremen, C -- Niles, J O -- Dalton, M G -- Daily, G C -- Ehrlich, P R -- Fay, J P -- Grewal, D -- Guillery, R P -- New York, N.Y. -- Science. 2000 Jun 9;288(5472):1828-32.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Conservation Biology, Department of Biological Sciences, Stanford University, Stanford, CA 94305, USA. ckremen@stanford.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10846165" target="_blank"〉PubMed〈/a〉
    Keywords: Agriculture ; Carbon ; Conservation of Natural Resources/*economics ; Cost-Benefit Analysis ; Developed Countries ; Developing Countries ; *Ecosystem ; Greenhouse Effect ; Industry ; Madagascar ; *Trees
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  • 33
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    Conservation conundrum (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-08-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brownell, R L Jr -- Curry, B E -- Van Bonn, W -- Ridgway, S H -- New York, N.Y. -- Science. 2000 Jun 30;288(5475):2319-20.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10917829" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Animals, Wild ; California ; Communicable Diseases/transmission/*veterinary ; *Conservation of Natural Resources ; *Ecosystem ; *Seals, Earless
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    Cloning: pathways to a pluripotent future (2000)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2000-07-06
    Description: In this month's essay, Anne McLaren traces the winding and pitted pathways that connect the early days of the cell theory of biology in the 1830s to the new and unfolding era of cloning science and technology that came to worldwide attention in 1997 with the announcement of the birth of Dolly, the Scottish cloned sheep. The possibilities, including the potential for new medical treatments and perhaps even human cloning, are fantastic ... and ethically charged.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McLaren, A -- New York, N.Y. -- Science. 2000 Jun 9;288(5472):1775-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wellcome/CRC Institute, Cambridge, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10877698" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Domestic/embryology/genetics ; Bioethics ; Cell Differentiation ; Cell Line ; Cell Nucleus/physiology ; *Cloning, Organism/history/trends ; Cytoplasm/physiology ; Embryo, Mammalian/cytology ; Embryo, Nonmammalian/cytology ; History, 19th Century ; History, 20th Century ; Humans ; Nuclear Transfer Techniques ; Stem Cells/cytology/physiology ; Therapeutics
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    Still havens for coral reefs (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-09-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Starck, W -- New York, N.Y. -- Science. 2000 Sep 8;289(5485):1691.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11001734" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Australia ; *Cnidaria ; Conservation of Natural Resources ; *Disasters ; *Ecosystem ; Humans
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    Ecology. When fire ants move in, others leave (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-08-05
    Description: Researchers have uncovered new evidence about the long-range, and potentially long-term, ecological damage being wrought by an invasive species of fire ant. The red imported fire ant Solenopsis invicta displaces other ant species and upsets the structures of native communities of ants--disruptions that appear to be permanent, they report in the July issue of Ecology Letters. The drop in biodiversity could represent a significant loss, experts note, because of the critical role ants play in recycling nutrients and other biological material.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 2000 Jul 14;289(5477):231.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10917841" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Ants/physiology ; *Ecosystem ; United States
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    Environmental policy. Counting the cost of deforestation (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-07-06
    Description: To halt the dramatic alteration in our climate, there must be a reduction in the emission of greenhouse gases. As Bonnie and colleagues discuss in their Perspective, conservation of forests will increase carbon sequestration and decrease greenhouse gas emissions. In this issue, a cost-benefit analysis by Kremen et al. demonstrates the benefits of forest conservation on a local and global scale.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bonnie, R -- Schwartzman, S -- Oppenheimer, M -- Bloomfield, J -- New York, N.Y. -- Science. 2000 Jun 9;288(5472):1763-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Environmental Defense, 1875 Connecticut Avenue, NW, Washington, DC 20009, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10877697" target="_blank"〉PubMed〈/a〉
    Keywords: Agriculture ; Carbon ; Conservation of Natural Resources/*economics ; Cost-Benefit Analysis ; Developing Countries ; *Ecosystem ; Greenhouse Effect ; Industry ; *Trees
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    Neurobiology. Receptors as kissing cousins (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-04-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Milligan, G -- New York, N.Y. -- Science. 2000 Apr 7;288(5463):65-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biochemistry and Molecular Biology, Institute of Biomedical and Life Sciences, University of Glasgow, Scotland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10766637" target="_blank"〉PubMed〈/a〉
    Keywords: Adenylyl Cyclase Inhibitors ; Adenylyl Cyclases/metabolism ; Animals ; Cell Line ; Cerebral Cortex/metabolism ; Corpus Striatum/metabolism ; Dimerization ; Energy Transfer ; Fluorescence ; GTP-Binding Proteins/*metabolism ; Ligands ; Rats ; Receptor Cross-Talk ; Receptors, Dopamine D1/metabolism ; Receptors, Dopamine D2/agonists/*metabolism ; Receptors, Dopamine D5 ; Receptors, GABA-A/metabolism ; Receptors, Somatostatin/agonists/*metabolism ; Signal Transduction ; Somatostatin/metabolism
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    An empirical assessment of taxic paleobiology (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-07-07
    Description: The analysis of major changes in faunal diversity through time is a central theme of analytical paleobiology. The most important sources of data are literature-based compilations of stratigraphic ranges of fossil taxa. The levels of error in these compilations and the possible effects of such error have often been discussed but never directly assessed. We compared our comprehensive database of trilobites to the equivalent portion of J. J. Sepkoski Jr.'s widely used global genus database. More than 70% of entries in the global database are inaccurate; however, as predicted, the error is randomly distributed and does not introduce bias.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Adrain, J M -- Westrop, S R -- New York, N.Y. -- Science. 2000 Jul 7;289(5476):110-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Geoscience, University of Iowa, Iowa City, IA 52242, USA. jonathan-adrain@uiowa.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10884223" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arthropods/anatomy & histology/*classification ; *Classification ; *Databases, Factual ; *Ecosystem ; *Fossils ; Paleontology/*methods ; Reproducibility of Results
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    Two-amino acid molecular switch in an epithelial morphogen that regulates binding to two distinct receptors (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-10-20
    Description: Ectodysplasin, a member of the tumor necrosis factor family, is encoded by the anhidrotic ectodermal dysplasia (EDA) gene. Mutations in EDA give rise to a clinical syndrome characterized by loss of hair, sweat glands, and teeth. EDA-A1 and EDA-A2 are two isoforms of ectodysplasin that differ only by an insertion of two amino acids. This insertion functions to determine receptor binding specificity, such that EDA-A1 binds only the receptor EDAR, whereas EDA-A2 binds only the related, but distinct, X-linked ectodysplasin-A2 receptor (XEDAR). In situ binding and organ culture studies indicate that EDA-A1 and EDA-A2 are differentially expressed and play a role in epidermal morphogenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yan, M -- Wang, L C -- Hymowitz, S G -- Schilbach, S -- Lee, J -- Goddard, A -- de Vos, A M -- Gao, W Q -- Dixit, V M -- New York, N.Y. -- Science. 2000 Oct 20;290(5491):523-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Oncology, Genentech, 1 DNA Way, South San Francisco, CA 94080, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11039935" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amino Acid Substitution ; Animals ; Binding Sites ; Cell Line ; DNA-Binding Proteins/metabolism ; Ectodermal Dysplasia/genetics ; Ectodysplasins ; Epidermis/embryology/*metabolism ; Humans ; *I-kappa B Proteins ; In Situ Hybridization ; Ligands ; Membrane Proteins/*chemistry/*metabolism ; Mice ; Models, Molecular ; Molecular Sequence Data ; Morphogenesis ; NF-kappa B/metabolism ; Phosphorylation ; Point Mutation ; Protein Conformation ; Proteins/metabolism ; Receptors, Cell Surface/chemistry/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; TNF Receptor-Associated Factor 6 ; Transfection
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    Perspectives: drug delivery. Regulating export of ER cargo (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-02-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Aridor, M -- Balch, W E -- New York, N.Y. -- Science. 2000 Feb 4;287(5454):816-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cellular and Molecular Biology, Scripps Research Institute, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10691557" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Transport ; Cell Line ; Drug Delivery Systems ; Endoplasmic Reticulum/*metabolism/secretion ; Golgi Apparatus/metabolism ; Growth Hormone/chemistry/metabolism/secretion ; Immunophilins/chemistry/metabolism ; Insulin/chemistry/metabolism/secretion ; Ligands ; Mice ; Models, Biological ; Protein Conformation ; Protein Engineering ; Protein Folding ; Recombinant Fusion Proteins/*chemistry/*metabolism/secretion ; Tacrolimus Binding Proteins
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    China's forest policy for the 21st century (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-07-15
    Description: A half-century policy of forest exploitation and monoculture in China has led to disastrous consequences, including degradation of forests and landscapes, loss of biodiversity, unacceptable levels of soil erosion, and catastrophic flooding. A new forest policy had been adopted in China called the Natural Forest conservation Program (NFCP), which emphasizes expansion of natural forests and increasing the productivity of forest plantations. Through locally focused management strategies, biodiversity and forest resources will be sustained, and downstream regions will be better protected from flooding. This new policy is being implemented with a new combination of policy tools, including technical training and education, land management planning, mandatory conversion of marginal farmlands to forest, resettlement and retaining of forest dwellers, share in private ownership, and expanded research. These policy tools may have wider relevance for other countries, particularly developing countries.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, P -- Shao, G -- Zhao, G -- Le Master, D C -- Parker, G R -- Dunning, J B Jr -- Li, Q -- New York, N.Y. -- Science. 2000 Jun 23;288(5474):2135-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Natural Forest Conservation and Management, State Forestry Administration (SFA), Beijing 100714, P. R. China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10896587" target="_blank"〉PubMed〈/a〉
    Keywords: Agriculture ; China ; *Conservation of Natural Resources ; *Ecosystem ; *Forestry/education ; *Public Policy ; Research ; *Trees
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    Kentucky 31, far from home (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-02-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Saikkonen, K -- New York, N.Y. -- Science. 2000 Mar 17;287(5460):1887.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of Turku, Finland. karisaik@utu.fi〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10755931" target="_blank"〉PubMed〈/a〉
    Keywords: *Ecosystem ; Fungi/*physiology ; Poaceae/growth & development/*microbiology ; Symbiosis
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    "Fluorescent timer": protein that changes color with time (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-11-25
    Description: We generated a mutant of the red fluorescent protein drFP583. The mutant (E5) changes its fluorescence from green to red over time. The rate of color conversion is independent of protein concentration and therefore can be used to trace time-dependent expression. We used in vivo labeling with E5 to measure expression from the heat shock-dependent promoter in Caenorhabditis elegans and from the Otx-2 promoter in developing Xenopus embryos. Thus, E5 is a "fluorescent timer" that can be used to monitor both activation and down-regulation of target promoters on the whole-organism scale.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Terskikh, A -- Fradkov, A -- Ermakova, G -- Zaraisky, A -- Tan, P -- Kajava, A V -- Zhao, X -- Lukyanov, S -- Matz, M -- Kim, S -- Weissman, I -- Siebert, P -- 1 RO3 TW01362-01/TW/FIC NIH HHS/ -- New York, N.Y. -- Science. 2000 Nov 24;290(5496):1585-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Medicine, Stanford University, Stanford, CA 94305, USA. Alexey.Terskikh@Stanford.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11090358" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/embryology/metabolism ; Caenorhabditis elegans/embryology/genetics ; Cell Line ; Color ; Fluorescence ; Gene Expression Profiling/*methods ; *Gene Expression Regulation ; Gene Expression Regulation, Developmental ; Heat-Shock Proteins/genetics ; *Homeodomain Proteins ; Humans ; Luminescent Proteins/*chemistry/*genetics/metabolism ; Mutation ; Nerve Tissue Proteins/genetics ; Otx Transcription Factors ; *Promoter Regions, Genetic ; Temperature ; Time Factors ; Trans-Activators/genetics ; Xenopus laevis/embryology
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    Ecology. Mount St. Helens, revisited (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-06-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lovett, R A -- New York, N.Y. -- Science. 2000 Jun 2;288(5471):1578-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10858135" target="_blank"〉PubMed〈/a〉
    Keywords: Amphibians ; Animals ; *Ecosystem ; Geological Phenomena ; Geology ; Mammals ; Plant Development ; Urodela ; *Volcanic Eruptions ; Washington
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    Recovery and management options for spring/summer chinook salmon in the Columbia River basin (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-11-04
    Description: Construction of four dams on the lower Snake River (in northwestern United States) between 1961 and 1975 altered salmon spawning habitat, elevated smolt and adult migration mortality, and contributed to severe declines of Snake River salmon populations. By applying a matrix model to long-term population data, we found that (i) dam passage improvements have dramatically mitigated direct mortality associated with dams; (ii) even if main stem survival were elevated to 100%, Snake River spring/summer chinook salmon (Oncorhynchus tshawytscha) would probably continue to decline toward extinction; and (iii) modest reductions in first-year mortality or estuarine mortality would reverse current population declines.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kareiva, P -- Marvier, M -- McClure, M -- New York, N.Y. -- Science. 2000 Nov 3;290(5493):977-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Marine Fisheries Service, Northwest Fisheries Science Center, 2725 Montlake Boulevard East, Seattle, WA 98112, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11062128" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Conservation of Natural Resources ; *Ecosystem ; Female ; Fresh Water ; Male ; Models, Biological ; Models, Statistical ; Northwestern United States ; Population Dynamics ; *Salmon/growth & development/physiology ; Survival Rate
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    Ecology. Does biodiversity help fend off invaders? (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-05-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaiser, J -- New York, N.Y. -- Science. 2000 May 5;288(5467):785-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10809640" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; California ; *Ecosystem ; *Plant Development ; Poaceae/*growth & development ; Seeds/growth & development
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    Requirement of the inositol trisphosphate receptor for activation of store-operated Ca2+ channels (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-03-04
    Description: The coupling mechanism between endoplasmic reticulum (ER) calcium ion (Ca2+) stores and plasma membrane (PM) store-operated channels (SOCs) is crucial to Ca2+ signaling but has eluded detection. SOCs may be functionally related to the TRP family of receptor-operated channels. Direct comparison of endogenous SOCs with stably expressed TRP3 channels in human embryonic kidney (HEK293) cells revealed that TRP3 channels differ in being store independent. However, condensed cortical F-actin prevented activation of both SOC and TRP3 channels, which suggests that ER-PM interactions underlie coupling of both channels. A cell-permeant inhibitor of inositol trisphosphate receptor (InsP3R) function, 2-aminoethoxydiphenyl borate, prevented both receptor-induced TRP3 activation and store-induced SOC activation. It is concluded that InsP3Rs mediate both SOC and TRP channel opening and that the InsP3R is essential for maintaining coupling between store emptying and physiological activation of SOCs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ma, H T -- Patterson, R L -- van Rossum, D B -- Birnbaumer, L -- Mikoshiba, K -- Gill, D L -- AR07592/AR/NIAMS NIH HHS/ -- HL55426/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2000 Mar 3;287(5458):1647-51.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biology, University of Maryland, School of Medicine, Baltimore, MD 21201, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10698739" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/metabolism ; Boron Compounds/pharmacology ; Calcium/*metabolism ; Calcium Channels/chemistry/*metabolism ; *Calcium Signaling ; Carbachol/pharmacology ; Cell Line ; Cell Membrane/metabolism ; Diglycerides/metabolism/pharmacology ; Endoplasmic Reticulum/*metabolism ; Enzyme Inhibitors/pharmacology ; Humans ; Inositol 1,4,5-Trisphosphate Receptors ; Ionomycin/pharmacology ; Macrocyclic Compounds ; Oxazoles/pharmacology ; Phosphoprotein Phosphatases/antagonists & inhibitors ; Receptors, Cytoplasmic and Nuclear/chemistry/*metabolism ; Strontium/metabolism ; TRPC Cation Channels ; Thapsigargin/pharmacology ; Transfection ; Type C Phospholipases/metabolism
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    CD95/CD95 ligand interactions on epithelial cells in host defense to Pseudomonas aeruginosa (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-10-20
    Description: Pseudomonas aeruginosa causes severe infections, particularly of the lung, that are life threatening. Here, we show that P. aeruginosa infection induces apoptosis of lung epithelial cells by activation of the endogenous CD95/CD95 ligand system. Deficiency of CD95 or CD95 ligand on epithelial cells prevented apoptosis of lung epithelial cells in vivo as well as in vitro. The importance of CD95/CD95 ligand-mediated lung epithelial cell apoptosis was demonstrated by the rapid development of sepsis in CD95- or CD95 ligand-deficient mice, but not in normal mice, after P. aeruginosa infection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Grassme, H -- Kirschnek, S -- Riethmueller, J -- Riehle, A -- von Kurthy, G -- Lang, F -- Weller, M -- Gulbins, E -- New York, N.Y. -- Science. 2000 Oct 20;290(5491):527-30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, University of Tuebingen, Gmelinstrasse 5, 72076 Tuebingen, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11039936" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD95/genetics/*metabolism ; *Apoptosis ; Bone Marrow Transplantation ; Cell Line ; Epithelial Cells/*immunology/microbiology/pathology ; Fas Ligand Protein ; Humans ; In Situ Nick-End Labeling ; Lung/*immunology/microbiology/pathology ; Lung Diseases/*immunology/microbiology/pathology ; Membrane Glycoproteins/genetics/*metabolism ; Mice ; Mice, Inbred C3H ; Pseudomonas Infections/*immunology/microbiology/pathology ; Pseudomonas aeruginosa/immunology/*pathogenicity ; Sepsis/microbiology ; Spleen/microbiology
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    Surface expression of HLA-E, an inhibitor of natural killer cells, enhanced by human cytomegalovirus gpUL40 (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-02-11
    Description: The nonclassical major histocompatibility complex (MHC) class I molecule HLA-E inhibits natural killer (NK) cell-mediated lysis by interacting with CD94/NKG2A receptors. Surface expression of HLA-E depends on binding of conserved peptides derived from MHC class I molecules. The same peptide is present in the leader sequence of the human cytomegalovirus (HCMV) glycoprotein UL40 (gpUL40). It is shown that, independently of the transporter associated with antigen processing, gpUL40 can up-regulate expression of HLA-E, which protects targets from NK cell lysis. While classical MHC class I molecules are down-regulated, HLA-E is up-regulated by HCMV. Induction of HLA-E surface expression by gpUL40 may represent an escape route for HCMV.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tomasec, P -- Braud, V M -- Rickards, C -- Powell, M B -- McSharry, B P -- Gadola, S -- Cerundolo, V -- Borysiewicz, L K -- McMichael, A J -- Wilkinson, G W -- New York, N.Y. -- Science. 2000 Feb 11;287(5455):1031.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of Wales College of Medicine, Cardiff CF14 4XN, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10669413" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amino Acid Substitution ; *Antigens, CD ; Cell Line ; Cell Membrane/immunology ; Cells, Cultured ; Conserved Sequence ; Cytomegalovirus/genetics/immunology/*metabolism ; Cytotoxicity, Immunologic ; Down-Regulation ; HLA Antigens/immunology/*metabolism ; Histocompatibility Antigens Class I/immunology/*metabolism ; Humans ; Killer Cells, Natural/*immunology ; Molecular Sequence Data ; Open Reading Frames ; Protein Sorting Signals/chemistry/*metabolism ; Receptors, Immunologic/metabolism ; Recombinant Fusion Proteins/chemistry/metabolism ; Transfection ; Up-Regulation ; Viral Proteins/chemistry/genetics/*metabolism
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    Marine ecology. Warmer waters more deadly to coral reefs than pollution (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-02-24
    Description: Contrary to conventional wisdom, warmer ocean waters are a greater threat to coral reefs than local environmental insults. That assessment comes from a new scientific report released this week that documents a sudden and steep jump in damage stemming from the 1997-98 El Nino-La Nina event.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Normile, D -- New York, N.Y. -- Science. 2000 Oct 27;290(5492):682-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11184189" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Climate ; Cnidaria/*physiology ; *Ecosystem ; Fishes ; Industry ; Oceans and Seas ; Temperature ; Water Pollution
    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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    Rapid destruction of human Cdc25A in response to DNA damage (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-05-29
    Description: To protect genome integrity and ensure survival, eukaryotic cells exposed to genotoxic stress cease proliferating to provide time for DNA repair. Human cells responded to ultraviolet light or ionizing radiation by rapid, ubiquitin- and proteasome-dependent protein degradation of Cdc25A, a phosphatase that is required for progression from G1 to S phase of the cell cycle. This response involved activated Chk1 protein kinase but not the p53 pathway, and the persisting inhibitory tyrosine phosphorylation of Cdk2 blocked entry into S phase and DNA replication. Overexpression of Cdc25A bypassed this mechanism, leading to enhanced DNA damage and decreased cell survival. These results identify specific degradation of Cdc25A as part of the DNA damage checkpoint mechanism and suggest how Cdc25A overexpression in human cancers might contribute to tumorigenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mailand, N -- Falck, J -- Lukas, C -- Syljuasen, R G -- Welcker, M -- Bartek, J -- Lukas, J -- New York, N.Y. -- Science. 2000 May 26;288(5470):1425-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Cancer Biology, Danish Cancer Society, Strandboulevarden 49, DK-2100 Copenhagen, Denmark.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10827953" target="_blank"〉PubMed〈/a〉
    Keywords: *CDC2-CDC28 Kinases ; Cell Line ; Cell Survival ; Cyclin E/metabolism ; Cyclin-Dependent Kinase 2 ; Cyclin-Dependent Kinases/antagonists & inhibitors/metabolism ; Cysteine Endopeptidases/metabolism ; *DNA Damage ; DNA Repair ; DNA Replication ; G1 Phase ; Humans ; Multienzyme Complexes/metabolism ; Phosphorylation ; Phosphotyrosine/metabolism ; Proteasome Endopeptidase Complex ; Protein Kinase Inhibitors ; Protein Kinases/metabolism ; Protein-Serine-Threonine Kinases/antagonists & inhibitors/metabolism ; Recombinant Fusion Proteins/metabolism ; S Phase ; Transfection ; Tumor Cells, Cultured ; Tumor Suppressor Protein p53/metabolism ; Ultraviolet Rays ; cdc25 Phosphatases/genetics/*metabolism
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Spatial patterns in the distribution of tropical tree species (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-05-29
    Description: Fully mapped tree census plots of large area, 25 to 52 hectares, have now been completed at six different sites in tropical forests, including dry deciduous to wet evergreen forest on two continents. One of the main goals of these plots has been to evaluate spatial patterns in tropical tree populations. Here the degree of aggregation in the distribution of 1768 tree species is examined based on the average density of conspecific trees in circular neighborhoods around each tree. When all individuals larger than 1 centimeter in stem diameter were included, nearly every species was more aggregated than a random distribution. Considering only larger trees (〉/= 10 centimeters in diameter), the pattern persisted, with most species being more aggregated than random. Rare species were more aggregated than common species. All six forests were very similar in all the particulars of these results.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Condit, R -- Ashton, P S -- Baker, P -- Bunyavejchewin, S -- Gunatilleke, S -- Gunatilleke, N -- Hubbell, S P -- Foster, R B -- Itoh, A -- LaFrankie, J V -- Lee, H S -- Losos, E -- Manokaran, N -- Sukumar, R -- Yamakura, T -- New York, N.Y. -- Science. 2000 May 26;288(5470):1414-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Tropical Forest Science, Smithsonian Tropical Research Institute, Unit 0948, APO AA 34002-0948, USA. ctfs@tivoli.si.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10827950" target="_blank"〉PubMed〈/a〉
    Keywords: Central America ; *Ecosystem ; India ; Malaysia ; Panama ; Sri Lanka ; Statistics as Topic ; Thailand ; *Trees ; Tropical Climate
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Two cheers for new stem cell rules (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-09-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kennedy, D -- New York, N.Y. -- Science. 2000 Sep 1;289(5484):1469.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10991729" target="_blank"〉PubMed〈/a〉
    Keywords: Bioethics ; Cell Line ; Embryo, Mammalian/*cytology ; *Guidelines as Topic ; Humans ; *National Institutes of Health (U.S.) ; Politics ; *Research/legislation & jurisprudence ; Research Support as Topic ; *Stem Cells ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Climate change. Managing forests after Kyoto (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-10-14
    Description: The Kyoto protocol aims to reduce carbon emissions into the atmosphere. Part of the strategy is the active management of terrestrial carbon sinks, principally through afforestation and reforestation. In their Perspective, Schulze et al. argue that the preservation of old-growth forests may have a larger positive effect on the carbon cycle than promotion of regrowth.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schulze, D E -- Wirth, C -- Heimann, M -- New York, N.Y. -- Science. 2000 Sep 22;289(5487):2058-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max Planck Institute for Biogeochemistry, Post Office Box 100164, 07701 Jena, Germany. Detlef.Schulze@bgc-jena.mpg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11032555" target="_blank"〉PubMed〈/a〉
    Keywords: *Carbon ; *Carbon Dioxide ; *Conservation of Natural Resources ; *Ecosystem ; *Trees
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Marine environment. Clinton creates huge Hawaiian coral haven (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-02-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Malakoff, D -- New York, N.Y. -- Science. 2000 Dec 8;290(5498):1873.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11187039" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cnidaria ; Conservation of Natural Resources/*legislation & jurisprudence ; *Ecosystem ; Hawaii
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    NF-kappaB-induced loss of MyoD messenger RNA: possible role in muscle decay and cachexia (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-09-29
    Description: MyoD regulates skeletal muscle differentiation (SMD) and is essential for repair of damaged tissue. The transcription factor nuclear factor kappa B (NF-kappaB) is activated by the cytokine tumor necrosis factor (TNF), a mediator of skeletal muscle wasting in cachexia. Here, the role of NF-kappaB in cytokine-induced muscle degeneration was explored. In differentiating C2C12 myocytes, TNF-induced activation of NF-kappaB inhibited SMD by suppressing MyoD mRNA at the posttranscriptional level. In contrast, in differentiated myotubes, TNF plus interferon-gamma (IFN-gamma) signaling was required for NF-kappaB-dependent down-regulation of MyoD and dysfunction of skeletal myofibers. MyoD mRNA was also down-regulated by TNF and IFN-gamma expression in mouse muscle in vivo. These data elucidate a possible mechanism that may underlie the skeletal muscle decay in cachexia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Guttridge, D C -- Mayo, M W -- Madrid, L V -- Wang, C Y -- Baldwin, A S Jr -- AI35098/AI/NIAID NIH HHS/ -- CA72771/CA/NCI NIH HHS/ -- K01 CA78595/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2000 Sep 29;289(5488):2363-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lineberger Comprehensive Cancer Center, Curriculum in Genetics and Molecular Biology, Department of Biology, University of North Carolina, Chapel Hill, Mason Farm Road, Campus Box 7295, Chapel Hill, NC, 27599-7295, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11009425" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; CHO Cells ; Cachexia/*etiology/metabolism/pathology ; Cell Differentiation ; Cell Line ; Cricetinae ; DNA-Binding Proteins/genetics/metabolism ; Down-Regulation ; *I-kappa B Proteins ; Interferon-gamma/pharmacology ; Interleukins/pharmacology ; Mice ; Mice, Inbred Strains ; Mice, Nude ; Muscle, Skeletal/*cytology/*metabolism/pathology ; MyoD Protein/*genetics/metabolism ; NF-kappa B/genetics/*metabolism ; RNA, Messenger/genetics/metabolism ; Transcription Factor RelA ; Transcription, Genetic ; Transfection ; Tumor Necrosis Factor-alpha/*pharmacology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Emerging infectious diseases of wildlife--threats to biodiversity and human health (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-01-22
    Description: Emerging infectious diseases (EIDs) of free-living wild animals can be classified into three major groups on the basis of key epizootiological criteria: (i) EIDs associated with "spill-over" from domestic animals to wildlife populations living in proximity; (ii) EIDs related directly to human intervention, via host or parasite translocations; and (iii) EIDs with no overt human or domestic animal involvement. These phenomena have two major biological implications: first, many wildlife species are reservoirs of pathogens that threaten domestic animal and human health; second, wildlife EIDs pose a substantial threat to the conservation of global biodiversity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Daszak, P -- Cunningham, A A -- Hyatt, A D -- New York, N.Y. -- Science. 2000 Jan 21;287(5452):443-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Ecology, University of Georgia, Athens, GA 30602, USA. daszak@uga.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10642539" target="_blank"〉PubMed〈/a〉
    Keywords: Agriculture ; Animals ; Animals, Domestic ; *Animals, Wild ; Climate ; Communicable Diseases/epidemiology/etiology/transmission/*veterinary ; Conservation of Natural Resources ; Disease Reservoirs ; *Ecosystem ; Humans ; Zoonoses
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    Allosteric effects of Pit-1 DNA sites on long-term repression in cell type specification (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-11-10
    Description: Reciprocal gene activation and restriction during cell type differentiation from a common lineage is a hallmark of mammalian organogenesis. A key question, then, is whether a critical transcriptional activator of cell type-specific gene targets can also restrict expression of the same genes in other cell types. Here, we show that whereas the pituitary-specific POU domain factor Pit-1 activates growth hormone gene expression in one cell type, the somatotrope, it restricts its expression from a second cell type, the lactotrope. This distinction depends on a two-base pair spacing in accommodation of the bipartite POU domains on a conserved growth hormone promoter site. The allosteric effect on Pit-1, in combination with other DNA binding factors, results in the recruitment of a corepressor complex, including nuclear receptor corepressor N-CoR, which, unexpectedly, is required for active long-term repression of the growth hormone gene in lactotropes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Scully, K M -- Jacobson, E M -- Jepsen, K -- Lunyak, V -- Viadiu, H -- Carriere, C -- Rose, D W -- Hooshmand, F -- Aggarwal, A K -- Rosenfeld, M G -- R01 DK18477/DK/NIDDK NIH HHS/ -- R01 DK54802/DK/NIDDK NIH HHS/ -- R01 GM49327/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2000 Nov 10;290(5494):1127-31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Endocrinology and Metabolism, School of Medicine, University of California, San Diego, La Jolla, CA 92093, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11073444" target="_blank"〉PubMed〈/a〉
    Keywords: Allosteric Regulation ; Animals ; Base Sequence ; Binding Sites ; Cell Line ; Conserved Sequence ; Crystallization ; DNA/*metabolism ; DNA-Binding Proteins/chemistry/genetics/*metabolism ; Female ; *Gene Expression Regulation ; Genes, Reporter ; Growth Hormone/*genetics ; Male ; Mice ; Mice, Transgenic ; Models, Molecular ; Molecular Sequence Data ; Nuclear Proteins/genetics/metabolism ; Nuclear Receptor Co-Repressor 1 ; Pituitary Gland/cytology/*metabolism ; Prolactin/*genetics ; Promoter Regions, Genetic ; Protein Conformation ; Protein Structure, Tertiary ; Rats ; Repressor Proteins/chemistry/genetics/*metabolism ; Transcription Factor Pit-1 ; Transcription Factors/chemistry/genetics/*metabolism ; Transcriptional Activation
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Ecology. Can science rescue salmon? (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-08-19
    Description: At a press conference on 27 July, the National Marine Fisheries Service (NMFS) released a long-awaited plan to save the Columbia River's endangered salmon by restoring fish habitat, overhauling hatcheries, limiting harvest, and improving river flow. What the plan did not do, however, was call for immediate breaching of four dams on the Snake River, the Columbia's major tributary--an option that has been the subject of a nationwide environmental crusade. The NMFS will hold that option in abeyance while it sees whether the less drastic measures will do the trick. Responses from both sides were immediate and outraged.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mann, C C -- Plummer, M L -- New York, N.Y. -- Science. 2000 Aug 4;289(5480):716-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10950712" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Conservation of Natural Resources ; *Ecosystem ; Fisheries ; Fresh Water ; Government Agencies ; Northwestern United States ; *Salmon
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Global carbon sinks and their variability inferred from atmospheric O2 and delta13C (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-03-31
    Description: Recent time-series measurements of atmospheric O2 show that the land biosphere and world oceans annually sequestered 1.4 +/- 0.8 and 2.0 +/- 0.6 gigatons of carbon, respectively, between mid-1991 and mid-1997. The rapid storage of carbon by the land biosphere from 1991 to 1997 contrasts with the 1980s, when the land biosphere was approximately neutral. Comparison with measurements of delta13CO2 implies an isotopic flux of 89 +/- 21 gigatons of carbon per mil per year, in agreement with model- and inventory-based estimates of this flux. Both the delta13C and the O2 data show significant interannual variability in carbon storage over the period of record. The general agreement of the independent estimates from O2 and delta13C is a robust signal of variable carbon uptake by both the land biosphere and the oceans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Battle, M -- Bender, M L -- Tans, P P -- White, J W -- Ellis, J T -- Conway, T -- Francey, R J -- New York, N.Y. -- Science. 2000 Mar 31;287(5462):2467-70.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Geoscience, Guyot Hall, Princeton University, Princeton, NJ 08544 USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10741962" target="_blank"〉PubMed〈/a〉
    Keywords: *Atmosphere ; Carbon/*analysis/*metabolism ; Carbon Dioxide/analysis/metabolism ; Carbon Isotopes ; *Ecosystem ; Nitrogen/analysis ; Oceans and Seas ; Oxygen/*analysis ; Oxygen Consumption ; Photosynthesis
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    BIOPAT does not trade in names (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-05-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Batke, C -- Haszprunar, G -- Kohler, J -- Naumann, C -- Schminke, H K -- Turkay, M -- New York, N.Y. -- Science. 2000 Apr 28;288(5466):617-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10798997" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Classification ; Conservation of Natural Resources ; *Ecosystem ; Fund Raising ; Research Support as Topic ; *Terminology as Topic
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    "Restoration"--a misnomer? (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-03-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Davis, M A -- New York, N.Y. -- Science. 2000 Feb 18;287(5456):1203.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10712150" target="_blank"〉PubMed〈/a〉
    Keywords: *Conservation of Natural Resources ; *Ecosystem ; North America ; Terminology as Topic ; *Trees
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    Scale dependence in plant biodiversity (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-02-07
    Description: The relationship between the number of species and the area sampled is one of the oldest and best-documented patterns in community ecology. Several theoretical models and field data from a wide range of plant and animal taxa suggest that the slope, z, of a graph of the logarithm of species richness against the logarithm of area is roughly constant, with z approximately 0.25. We collected replicated and randomized plant data at 11 spatial scales from 0.01 to 10(8) square meters in Great Britain which show that the slope of the log-log plot is not constant, but varies systematically with spatial scale, and from habitat to habitat at the same spatial scale. Values of z were low (0.1 to 0.2) at small scales (〈100 square meters), high (0.4 to 0.5) at intermediate scales (1 hectare to 10 square kilometers), and low again (0.1 to 0.2) for the largest scale transitions (e.g., East Berks to all of Berkshire). Instead of one process determining changes in species richness across a wide range of scales, different processes might determine plant biodiversity at different spatial scales.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Crawley, M J -- Harral, J E -- New York, N.Y. -- Science. 2001 Feb 2;291(5505):864-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Natural Environment Research Council Centre for Population Biology, Imperial College, Silwood Park, Ascot SL5 7PY, UK. m.crawley@ic.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11157164" target="_blank"〉PubMed〈/a〉
    Keywords: *Ecosystem ; England ; Mathematics ; Plant Physiological Phenomena ; *Plants ; Population Dynamics
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    Ecology and evolution. The risk of extinction--what you don't know will hurt you (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-03-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gittleman, J L -- Gompper, M E -- New York, N.Y. -- Science. 2001 Feb 9;291(5506):997-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology,University of Virginia,Charlottesville,Virginia 22903, USA. JLGittleman@virginia.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11232588" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Artiodactyla ; *Behavior, Animal ; Biological Evolution ; *Carnivora ; *Conservation of Natural Resources ; Cues ; *Deer ; *Ecosystem ; *Predatory Behavior ; Ursidae ; Wolves
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    The pandas' habitat at Wolong Nature Reserve (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-07-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baragona, K -- New York, N.Y. -- Science. 2001 Jul 27;293(5530):603-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11476087" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; China ; *Conservation of Natural Resources ; *Ecosystem ; *Environment ; *Ursidae
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    Genomic and genetic definition of a functional human centromere (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-10-06
    Description: The definition of centromeres of human chromosomes requires a complete genomic understanding of these regions. Toward this end, we report integration of physical mapping, genetic, and functional approaches, together with sequencing of selected regions, to define the centromere of the human X chromosome and to explore the evolution of sequences responsible for chromosome segregation. The transitional region between expressed sequences on the short arm of the X and the chromosome-specific alpha satellite array DXZ1 spans about 450 kilobases and is satellite-rich. At the junction between this satellite region and canonical DXZ1 repeats, diverged repeat units provide direct evidence of unequal crossover as the homogenizing force of these arrays. Results from deletion analysis of mitotically stable chromosome rearrangements and from a human artificial chromosome assay demonstrate that DXZ1 DNA is sufficient for centromere function. Evolutionary studies indicate that, while alpha satellite DNA present throughout the pericentromeric region of the X chromosome appears to be a descendant of an ancestral primate centromere, the current functional centromere based on DXZ1 sequences is the product of the much more recent concerted evolution of this satellite DNA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schueler, M G -- Higgins, A W -- Rudd, M K -- Gustashaw, K -- Willard, H F -- HD07518/HD/NICHD NIH HHS/ -- HD32111/HD/NICHD NIH HHS/ -- HG00107/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2001 Oct 5;294(5540):109-15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Case Western Reserve University School of Medicine and Center for Human Genetics, and, Research Institute, University Hospitals of Cleveland, Cleveland, OH 44106, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11588252" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cell Line ; Centromere/chemistry/genetics/*physiology ; Chromosome Segregation ; Chromosomes, Artificial, Bacterial ; Chromosomes, Artificial, Human ; Computer Simulation ; Contig Mapping ; Crossing Over, Genetic ; *DNA, Satellite/chemistry/genetics/physiology ; Evolution, Molecular ; Humans ; Interspersed Repetitive Sequences ; Models, Genetic ; Phylogeny ; Repetitive Sequences, Nucleic Acid ; Restriction Mapping ; Sequence Analysis, DNA ; Sequence Deletion ; Sequence Tagged Sites ; Transfection ; Turner Syndrome/genetics ; X Chromosome/genetics/*physiology/ultrastructure
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    A transcriptional switch mediated by cofactor methylation (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-11-10
    Description: We describe a molecular switch based on the controlled methylation of nucleosome and the transcriptional cofactors, the CREB-binding proteins (CBP)/p300. The CBP/p300 methylation site is localized to an arginine residue that is essential for stabilizing the structure of the KIX domain, which mediates CREB recruitment. Methylation of KIX by coactivator-associated arginine methyltransferase 1 (CARM1) blocks CREB activation by disabling the interaction between KIX and the kinase inducible domain (KID) of CREB. Thus, CARM1 functions as a corepressor in cyclic adenosine monophosphate signaling pathway via its methyltransferase activity while acting as a coactivator for nuclear hormones. These results provide strong in vivo and in vitro evidence that histone methylation plays a key role in hormone-induced gene activation and define cofactor methylation as a new regulatory mechanism in hormone signaling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xu, W -- Chen, H -- Du, K -- Asahara, H -- Tini, M -- Emerson, B M -- Montminy, M -- Evans, R M -- 9R01DK57978/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2001 Dec 21;294(5551):2507-11. Epub 2001 Nov 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Gene Expression Laboratory, Department of Biological Chemistry, University of California Davis Cancer Center/Basic Science, Sacramento, CA 95817, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11701890" target="_blank"〉PubMed〈/a〉
    Keywords: Acetyltransferases/metabolism ; Amino Acid Sequence ; Animals ; Apoptosis ; Cell Line ; Cyclic AMP Response Element-Binding Protein/metabolism ; Dimerization ; E1A-Associated p300 Protein ; *Gene Expression Regulation ; Genes, Reporter ; Histone Acetyltransferases ; Histones/metabolism ; Methylation ; Molecular Sequence Data ; Nerve Growth Factor/pharmacology ; Nuclear Proteins/chemistry/*metabolism ; PC12 Cells ; Protein Structure, Tertiary ; Protein-Arginine N-Methyltransferases/*metabolism ; Rats ; Receptors, Retinoic Acid/*metabolism ; Recombinant Fusion Proteins/metabolism ; Retinoid X Receptors ; *Saccharomyces cerevisiae Proteins ; Signal Transduction ; Somatostatin/genetics ; Trans-Activators/chemistry/*metabolism ; Transcription Factors/metabolism ; *Transcription, Genetic ; Transcriptional Activation ; Transfection ; Tretinoin/metabolism/pharmacology
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    The ethical reasons for stem cell research (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-05-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lanza, R P -- Cibelli, J B -- West, M D -- Dorff, E -- Tauer, C -- Green, R M -- New York, N.Y. -- Science. 2001 May 18;292(5520):1299.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11360981" target="_blank"〉PubMed〈/a〉
    Keywords: *Bioethics ; Cell Differentiation ; Cell Line ; *Embryo Research ; Embryo, Mammalian/cytology ; Financing, Organized ; *Government Regulation ; Humans ; National Institutes of Health (U.S.) ; Regeneration ; Research/economics/*legislation & jurisprudence/standards ; *Stem Cells/cytology ; United States ; United States Dept. of Health and Human Services
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    Molecular mechanisms of the biological clock in cultured fibroblasts (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-04-17
    Description: In mammals, the central circadian pacemaker resides in the hypothalamic suprachiasmatic nucleus (SCN), but circadian oscillators also exist in peripheral tissues. Here, using wild-type and cryptochrome (mCry)-deficient cell lines derived from mCry mutant mice, we show that the peripheral oscillator in cultured fibroblasts is identical to the oscillator in the SCN in (i) temporal expression profiles of all known clock genes, (ii) the phase of the various mRNA rhythms (i.e., antiphase oscillation of Bmal1 and mPer genes), (iii) the delay between maximum mRNA levels and appearance of nuclear mPER1 and mPER2 protein, (iv) the inability to produce oscillations in the absence of functional mCry genes, and (v) the control of period length by mCRY proteins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yagita, K -- Tamanini, F -- van Der Horst, G T -- Okamura, H -- New York, N.Y. -- Science. 2001 Apr 13;292(5515):278-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Molecular Brain Science, Department of Brain Sciences, Kobe University Graduate School of Medicine, Chuo-ku, Kobe 650-0017, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11303101" target="_blank"〉PubMed〈/a〉
    Keywords: ARNTL Transcription Factors ; Animals ; Basic Helix-Loop-Helix Transcription Factors ; Biological Clocks/*genetics ; CLOCK Proteins ; Cell Cycle Proteins ; Cell Line ; Cell Nucleus/metabolism ; Circadian Rhythm/*genetics ; Cryptochromes ; *DNA-Binding Proteins ; *Drosophila Proteins ; Endothelin-1/pharmacology ; *Eye Proteins ; Fibroblasts/*physiology ; Flavoproteins/genetics/metabolism ; Gene Expression Profiling ; *Gene Expression Regulation ; Nuclear Proteins/genetics/metabolism ; Period Circadian Proteins ; *Photoreceptor Cells, Invertebrate ; RNA, Messenger/genetics/metabolism ; Rats ; Receptors, G-Protein-Coupled ; Suprachiasmatic Nucleus/metabolism ; Time Factors ; Trans-Activators/genetics/metabolism ; Transcription Factors/genetics/metabolism
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    ENSO-like forcing on oceanic primary production during the Late Pleistocene (2001)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2001-09-29
    Description: Late Pleistocene changes in oceanic primary productivity along the equator in the Indian and Pacific oceans are revealed by quantitative changes in nanoplankton communities preserved in nine deep-sea cores. We show that variations in equatorial productivity are primarily caused by glacial-interglacial variability and by precession-controlled changes in the east-west thermocline slope of the Indo-Pacific. The precession-controlled variations in productivity are linked to processes similar to the Southern Oscillation phenomenon, and they precede changes in the oxygen isotopic ratio, which indicates that they are not the result of ice sheet fluctuations. The 30,000-year spectral peak in the tropical Indo-Pacific Ocean productivity records is also present in the Antarctica atmospheric CO2 record, suggesting an important role for equatorial biological productivity in modifying atmospheric CO2.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beaufort, L -- de Garidel-Thoron, T -- Mix, A C -- Pisias, N G -- New York, N.Y. -- Science. 2001 Sep 28;293(5539):2440-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉CNRS-CEREGE, BP 80, 13545 Aix-en-Provence Cedex 04, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11577233" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Atmosphere ; Carbon Dioxide ; *Climate ; *Ecosystem ; *Eukaryota ; *Fossils ; Indian Ocean ; Light ; Marine Biology ; Oxygen Isotopes ; Pacific Ocean ; *Plankton ; Seawater ; Time
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    Dam breaching and chinook salmon recovery (2001)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2001-02-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dambacher, J M -- Rossignol, P A -- Li, H W -- Emlen, J M -- New York, N.Y. -- Science. 2001 Feb 9;291(5506):939.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Fisheries and Wildlife, Oregon State University, Corvallis, OR 97331, USA. dambacherj@fsl.orst.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11161208" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Conservation of Natural Resources ; *Ecosystem ; Fresh Water ; Models, Biological ; Models, Statistical ; Northwestern United States ; Population Dynamics ; *Salmon/growth & development/physiology ; Survival Rate
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    Clinical resistance to STI-571 cancer therapy caused by BCR-ABL gene mutation or amplification (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-06-26
    Description: Clinical studies with the Abl tyrosine kinase inhibitor STI-571 in chronic myeloid leukemia demonstrate that many patients with advanced stage disease respond initially but then relapse. Through biochemical and molecular analysis of clinical material, we find that drug resistance is associated with the reactivation of BCR-ABL signal transduction in all cases examined. In six of nine patients, resistance was associated with a single amino acid substitution in a threonine residue of the Abl kinase domain known to form a critical hydrogen bond with the drug. This substitution of threonine with isoleucine was sufficient to confer STI-571 resistance in a reconstitution experiment. In three patients, resistance was associated with progressive BCR-ABL gene amplification. These studies provide evidence that genetically complex cancers retain dependence on an initial oncogenic event and suggest a strategy for identifying inhibitors of STI-571 resistance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gorre, M E -- Mohammed, M -- Ellwood, K -- Hsu, N -- Paquette, R -- Rao, P N -- Sawyers, C L -- GM07185/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2001 Aug 3;293(5531):876-80. Epub 2001 Jun 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Molecular Biology Institute, University of California, Los Angeles, CA 90095, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11423618" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amino Acid Substitution ; Antineoplastic Agents/metabolism/pharmacology/therapeutic use ; Base Sequence ; Benzamides ; Blast Crisis/genetics ; Cell Line ; Drug Resistance, Neoplasm/genetics ; Fusion Proteins, bcr-abl/*metabolism ; Gene Amplification ; *Genes, abl ; Humans ; Hydrogen Bonding ; Imatinib Mesylate ; Leukemia, Myelogenous, Chronic, BCR-ABL Positive/*drug therapy/*genetics ; Molecular Sequence Data ; Philadelphia Chromosome ; Phosphorylation ; Piperazines/metabolism/*pharmacology/therapeutic use ; Point Mutation ; Protein Structure, Tertiary ; Proto-Oncogene Proteins/metabolism ; Proto-Oncogene Proteins c-abl/antagonists & ; inhibitors/chemistry/*genetics/metabolism ; Proto-Oncogene Proteins c-crk ; Pyrimidines/metabolism/*pharmacology/therapeutic use ; Recurrence ; Signal Transduction
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    Environmental policy. The other global pollutant: nitrogen proves tough to curb (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-11-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaiser, J -- New York, N.Y. -- Science. 2001 Nov 9;294(5545):1268-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11701908" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Ecosystem ; *Environmental Pollutants ; Humans ; International Cooperation ; *Nitrogen/metabolism ; Policy Making
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    Molecular biology. Getting p53 out of the nucleus (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-06-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gottifredi, V -- Prives, C -- New York, N.Y. -- Science. 2001 Jun 8;292(5523):1851-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, Columbia University, New York, NY 10027, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11397937" target="_blank"〉PubMed〈/a〉
    Keywords: Active Transport, Cell Nucleus ; Cell Cycle ; Cell Line ; Cell Nucleus/*metabolism ; Cysteine Endopeptidases/metabolism ; Cytoplasm/metabolism ; DNA Damage ; Humans ; Multienzyme Complexes/metabolism ; Nuclear Localization Signals ; Nuclear Pore/metabolism ; *Nuclear Proteins ; Phosphorylation ; Proteasome Endopeptidase Complex ; *Protein Sorting Signals ; Proto-Oncogene Proteins/chemistry/metabolism ; Proto-Oncogene Proteins c-mdm2 ; Recombinant Fusion Proteins/metabolism ; Tumor Suppressor Protein p53/chemistry/*metabolism ; Ubiquitins/metabolism ; Ultraviolet Rays
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Reversal of obesity- and diet-induced insulin resistance with salicylates or targeted disruption of Ikkbeta (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-09-05
    Description: We show that high doses of salicylates reverse hyperglycemia, hyperinsulinemia, and dyslipidemia in obese rodents by sensitizing insulin signaling. Activation or overexpression of the IkappaB kinase beta (IKKbeta) attenuated insulin signaling in cultured cells, whereas IKKbeta inhibition reversed insulin resistance. Thus, IKKbeta, rather than the cyclooxygenases, appears to be the relevant molecular target. Heterozygous deletion (Ikkbeta+/-) protected against the development of insulin resistance during high-fat feeding and in obese Lep(ob/ob) mice. These findings implicate an inflammatory process in the pathogenesis of insulin resistance in obesity and type 2 diabetes mellitus and identify the IKKbeta pathway as a target for insulin sensitization.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yuan, M -- Konstantopoulos, N -- Lee, J -- Hansen, L -- Li, Z W -- Karin, M -- Shoelson, S E -- AI43477/AI/NIAID NIH HHS/ -- DK45493/DK/NIDDK NIH HHS/ -- DK51729/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2001 Aug 31;293(5535):1673-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Joslin Diabetes Center and Department of Medicine, Harvard Medical School, Boston, MA 02215, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11533494" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anti-Inflammatory Agents, Non-Steroidal/pharmacology ; Aspirin/administration & dosage/*pharmacology ; Blood Glucose/metabolism ; Cell Line ; Dietary Fats/*administration & dosage ; Gene Deletion ; Gene Targeting ; Glucose Tolerance Test ; I-kappa B Kinase ; Insulin/administration & dosage/blood/*metabolism/pharmacology ; *Insulin Resistance ; Lipids/blood ; Liver/metabolism ; Male ; Mice ; Mice, Obese ; Muscles/metabolism ; Obesity/metabolism/*physiopathology ; Phosphorylation ; Prostaglandin-Endoperoxide Synthases/genetics/metabolism ; Protein-Serine-Threonine Kinases/antagonists & inhibitors/genetics/*metabolism ; Rats ; Rats, Zucker ; Receptor, Insulin/metabolism ; Signal Transduction ; Sodium Salicylate/administration & dosage/*pharmacology ; Tumor Necrosis Factor-alpha/pharmacology
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    Conservation biology. Building a case for biological corridors (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-09-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaiser, J -- New York, N.Y. -- Science. 2001 Sep 21;293(5538):2199.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11567123" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Birds ; Central America ; *Conservation of Natural Resources ; *Ecosystem ; England ; Environment ; Population Dynamics ; Sciuridae/genetics ; Scotland ; Trees
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    A p53 amino-terminal nuclear export signal inhibited by DNA damage-induced phosphorylation (2001)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2001-06-09
    Description: The p53 protein is present in low amounts in normally growing cells and is activated in response to physiological insults. MDM2 regulates p53 either through inhibiting p53's transactivating function in the nucleus or by targeting p53 degradation in the cytoplasm. We identified a previously unknown nuclear export signal (NES) in the amino terminus of p53, spanning residues 11 to 27 and containing two serine residues phosphorylated after DNA damage, which was required for p53 nuclear export in colloboration with the carboxyl-terminal NES. Serine-15-phosphorylated p53 induced by ultraviolet irradiation was not exported. Thus, DNA damage-induced phosphorylation may achieve optimal p53 activation by inhibiting both MDM2 binding to, and the nuclear export of, p53.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, Y -- Xiong, Y -- CA65572/CA/NCI NIH HHS/ -- K01 CA087580/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2001 Jun 8;292(5523):1910-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lineberger Comprehensive Cancer Center, Department of Biochemistry and Biophysics, and Program in Molecular Biology and Biotechnology, University of North Carolina at Chapel Hill, NC 27599-7295, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11397945" target="_blank"〉PubMed〈/a〉
    Keywords: Active Transport, Cell Nucleus ; Amino Acid Sequence ; Animals ; Cell Fusion ; Cell Line ; Cell Nucleus/*metabolism ; Cells, Cultured ; Cytoplasm/metabolism ; *DNA Damage ; Mice ; Molecular Sequence Data ; Mutation ; *Nuclear Proteins ; Phosphorylation ; Phosphoserine/metabolism ; *Protein Sorting Signals ; Protein Structure, Tertiary ; Proteins/genetics/metabolism ; Proto-Oncogene Proteins/metabolism ; Proto-Oncogene Proteins c-mdm2 ; Recombinant Fusion Proteins/metabolism ; Transfection ; Tumor Suppressor Protein p14ARF ; Tumor Suppressor Protein p53/*chemistry/genetics/*metabolism ; Ubiquitins/metabolism ; Ultraviolet Rays
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    Did human hunting cause mass extinction? (2001)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2001-11-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Grayson, D K -- New York, N.Y. -- Science. 2001 Nov 16;294(5546):1459-62.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11713777" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Body Weight ; Computer Simulation ; *Ecosystem ; *Human Activities ; Humans ; *Mammals ; Mathematics ; *Paleontology ; Population Dynamics ; Population Growth
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    Prevention of chemotherapy-induced alopecia in rats by CDK inhibitors (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-01-06
    Description: Most traditional cytotoxic anticancer agents ablate the rapidly dividing epithelium of the hair follicle and induce alopecia (hair loss). Inhibition of cyclin-dependent kinase 2 (CDK2), a positive regulator of eukaryotic cell cycle progression, may represent a therapeutic strategy for prevention of chemotherapy-induced alopecia (CIA) by arresting the cell cycle and reducing the sensitivity of the epithelium to many cell cycle-active antitumor agents. Potent small-molecule inhibitors of CDK2 were developed using structure-based methods. Topical application of these compounds in a neonatal rat model of CIA reduced hair loss at the site of application in 33 to 50% of the animals. Thus, inhibition of CDK2 represents a potentially useful approach for the prevention of CIA in cancer patients.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Davis, S T -- Benson, B G -- Bramson, H N -- Chapman, D E -- Dickerson, S H -- Dold, K M -- Eberwein, D J -- Edelstein, M -- Frye, S V -- Gampe Jr, R T -- Griffin, R J -- Harris, P A -- Hassell, A M -- Holmes, W D -- Hunter, R N -- Knick, V B -- Lackey, K -- Lovejoy, B -- Luzzio, M J -- Murray, D -- Parker, P -- Rocque, W J -- Shewchuk, L -- Veal, J M -- Walker, D H -- Kuyper, L F -- New York, N.Y. -- Science. 2001 Jan 5;291(5501):134-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cancer Biology, Glaxo Wellcome Research and Development, Research Triangle Park, NC 27709, USA. std41085@glaxowellcome.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11141566" target="_blank"〉PubMed〈/a〉
    Keywords: Alopecia/*chemically induced/*prevention & control ; Animals ; Animals, Newborn ; Antineoplastic Agents/*toxicity ; Antineoplastic Combined Chemotherapy Protocols/toxicity ; Apoptosis/drug effects ; *CDC2-CDC28 Kinases ; Cell Cycle/drug effects ; Cell Line ; Cyclin-Dependent Kinase 2 ; Cyclin-Dependent Kinases/*antagonists & inhibitors/metabolism ; Cyclophosphamide/toxicity ; Cytoprotection/drug effects ; DNA/biosynthesis ; Doxorubicin/toxicity ; Drug Design ; Enzyme Inhibitors/chemical synthesis/chemistry/*pharmacology ; Epithelium/drug effects ; Etoposide/toxicity ; Hair Follicle/cytology/*drug effects ; Humans ; Indoles/chemical synthesis/chemistry/*pharmacology ; Mice ; Mice, SCID ; Phosphorylation ; Protein-Serine-Threonine Kinases/*antagonists & inhibitors/metabolism ; Rats ; Retinoblastoma Protein/metabolism ; Scalp/transplantation ; Sulfonamides/chemical synthesis/chemistry/*pharmacology ; Transplantation, Heterologous
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    RGS-PX1, a GAP for GalphaS and sorting nexin in vesicular trafficking (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-12-01
    Description: Heterotrimeric GTP-binding proteins (G proteins) control cellular functions by transducing signals from the outside to the inside of cells. Regulator of G protein signaling (RGS) proteins are key modulators of the amplitude and duration of G protein-mediated signaling through their ability to serve as guanosine triphosphatase-activating proteins (GAPs). We have identified RGS-PX1, a Galpha(s)-specific GAP. The RGS domain of RGS-PX1 specifically interacted with Galpha(s), accelerated its GTP hydrolysis, and attenuated Galpha(s)-mediated signaling. RGS-PX1 also contains a Phox (PX) domain that resembles those in sorting nexin (SNX) proteins. Expression of RGS-PX1 delayed lysosomal degradation of the EGF receptor. Because of its bifunctional role as both a GAP and a SNX, RGS-PX1 may link heterotrimeric G protein signaling and vesicular trafficking.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zheng, B -- Ma, Y C -- Ostrom, R S -- Lavoie, C -- Gill, G N -- Insel, P A -- Huang, X Y -- Farquhar, M G -- AG14563/AG/NIA NIH HHS/ -- CA58689/CA/NCI NIH HHS/ -- DK17780/DK/NIDDK NIH HHS/ -- GM56904/GM/NIGMS NIH HHS/ -- HL53773/HL/NHLBI NIH HHS/ -- HL63885/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2001 Nov 30;294(5548):1939-42.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA 92093-0651, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11729322" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenergic beta-2 Receptor Agonists ; Amino Acid Sequence ; Animals ; COS Cells ; Carrier Proteins/chemistry/*metabolism ; Cattle ; Cell Line ; Cyclic AMP/metabolism ; Endosomes/chemistry/metabolism ; GTP-Binding Protein alpha Subunits, Gs/antagonists & inhibitors/*metabolism ; GTPase-Activating Proteins/chemistry/*metabolism ; Guanosine Triphosphate/metabolism ; Humans ; Mitogen-Activated Protein Kinases/metabolism ; Molecular Sequence Data ; Protein Binding ; Protein Interaction Mapping ; Protein Structure, Tertiary ; Protein Transport ; RGS Proteins/chemistry/*metabolism ; Receptor, Epidermal Growth Factor/metabolism ; Receptors, Adrenergic, beta-2/genetics/metabolism ; Sequence Alignment ; Signal Transduction ; Sorting Nexins ; Substrate Specificity ; *Vesicular Transport Proteins
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    Paleoecology. Mass extinctions pinned on Ice Age hunters (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-06-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dayton, L -- New York, N.Y. -- Science. 2001 Jun 8;292(5523):1819.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11397924" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Australia ; Biological Evolution ; *Birds ; Computer Simulation ; *Ecosystem ; Geologic Sediments ; Human Activities ; Humans ; *Mammals ; North America ; *Paleontology ; Population Dynamics ; Time
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    Conservation biology. Bold corridor project confronts political reality (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-09-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaiser, J -- New York, N.Y. -- Science. 2001 Sep 21;293(5538):2196-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11567122" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Central America ; *Conservation of Natural Resources ; *Ecosystem ; Environment ; International Cooperation ; Mexico ; Politics
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    An experiment for all seasons (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-07-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaiser, J -- New York, N.Y. -- Science. 2001 Jul 27;293(5530):624-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11474094" target="_blank"〉PubMed〈/a〉
    Keywords: Agriculture ; Animals ; Databases, Factual ; *Ecology ; *Ecosystem ; Government Agencies ; International Cooperation ; Internet ; Plants ; Research Support as Topic ; Software ; Time Factors ; Trees ; Weather
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    Ecology. A new wind sweeps the plains (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-06-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thacker, P -- New York, N.Y. -- Science. 2001 Jun 29;292(5526):2427.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11431551" target="_blank"〉PubMed〈/a〉
    Keywords: Animal Husbandry ; Animals ; *Animals, Wild ; *Cattle ; *Ecosystem ; Midwestern United States ; Poaceae ; *Sciuridae ; United States ; Wyoming
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    Divining a forest's future from its past (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-07-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaiser, J -- New York, N.Y. -- Science. 2001 Jul 27;293(5530):626.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11474096" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carbon Dioxide ; Disasters ; Ecology ; *Ecosystem ; Financing, Government ; Government Agencies ; Massachusetts ; Research Support as Topic ; Time Factors ; *Trees
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    Ecological restoration. NRC panel pokes holes in Everglades scheme (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-03-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaiser, J -- New York, N.Y. -- Science. 2001 Feb 9;291(5506):959-61.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11232566" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Conservation of Natural Resources ; *Ecosystem ; Florida ; Pilot Projects ; *Water
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    Stem cell research has only just begun (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-07-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zuk, P A -- New York, N.Y. -- Science. 2001 Jul 13;293(5528):211-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11452974" target="_blank"〉PubMed〈/a〉
    Keywords: Adipocytes/*cytology ; Cell Differentiation ; Cell Line ; Hematopoietic Stem Cells ; Humans ; Lipectomy ; Mesoderm/cytology ; Research ; *Stem Cells
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    Recolonizing carnivores and naive prey: conservation lessons from Pleistocene extinctions (2001)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2001-02-13
    Description: The current extinction of many of Earth's large terrestrial carnivores has left some extant prey species lacking knowledge about contemporary predators, a situation roughly parallel to that 10,000 to 50,000 years ago, when naive animals first encountered colonizing human hunters. Along present-day carnivore recolonization fronts, brown (also called grizzly) bears killed predator-naive adult moose at disproportionately high rates in Scandinavia, and moose mothers who lost juveniles to recolonizing wolves in North America's Yellowstone region developed hypersensitivity to wolf howls. Although prey that had been unfamiliar with dangerous predators for as few as 50 to 130 years were highly vulnerable to initial encounters, behavioral adjustments to reduce predation transpired within a single generation. The fact that at least one prey species quickly learns to be wary of restored carnivores should negate fears about localized prey extinction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Berger, J -- Swenson, J E -- Persson, I L -- New York, N.Y. -- Science. 2001 Feb 9;291(5506):1036-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Program in Ecology, Evolution, and Conservation Biology, University of Nevada, Reno, NV 89512, USA. berger@unr.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11161215" target="_blank"〉PubMed〈/a〉
    Keywords: Alaska ; Animals ; Arousal ; *Behavior, Animal ; *Carnivora ; *Conservation of Natural Resources ; Cues ; *Deer ; *Ecosystem ; Female ; Male ; Odors ; *Predatory Behavior ; Scandinavian and Nordic Countries ; Ursidae ; Vocalization, Animal ; Wolves ; Wyoming
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    BAFF-R, a newly identified TNF receptor that specifically interacts with BAFF (2001)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2001-08-18
    Description: B cell homeostasis has been shown to critically depend on BAFF, the B cell activation factor from the tumor necrosis factor (TNF) family. Although BAFF is already known to bind two receptors, BCMA and TACI, we have identified a third receptor for BAFF that we have termed BAFF-R. BAFF-R binding appears to be highly specific for BAFF, suggesting a unique role for this ligand-receptor interaction. Consistent with this, the BAFF-R locus is disrupted in A/WySnJ mice, which display a B cell phenotype qualitatively similar to that of the BAFF-deficient mice. Thus, BAFF-R appears to be the principal receptor for BAFF-mediated mature B cell survival.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thompson, J S -- Bixler, S A -- Qian, F -- Vora, K -- Scott, M L -- Cachero, T G -- Hession, C -- Schneider, P -- Sizing, I D -- Mullen, C -- Strauch, K -- Zafari, M -- Benjamin, C D -- Tschopp, J -- Browning, J L -- Ambrose, C -- New York, N.Y. -- Science. 2001 Sep 14;293(5537):2108-11. Epub 2001 Aug 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biogen, 12 Cambridge Center, Cambridge, MA 02142, USA., The Institute of Biochemistry, University of Lausanne, CH-1066, Epalinges, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11509692" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; B-Cell Activating Factor ; B-Cell Activation Factor Receptor ; B-Cell Maturation Antigen ; B-Lymphocytes/immunology/metabolism/*physiology ; Cell Line ; Chromosome Mapping ; Chromosomes, Human, Pair 22 ; Cloning, Molecular ; Homeostasis ; Humans ; Ligands ; Lymphoid Tissue/metabolism ; Male ; Membrane Proteins/*metabolism ; Mice ; Mice, Inbred A ; Mice, Inbred C57BL ; Molecular Sequence Data ; RNA, Messenger/chemistry/genetics/metabolism ; Receptors, Tumor Necrosis Factor/chemistry/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; Transfection ; Transmembrane Activator and CAML Interactor Protein ; Tumor Necrosis Factor-alpha/*metabolism
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    Diversity and productivity in a long-term grassland experiment (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-10-27
    Description: Plant diversity and niche complementarity had progressively stronger effects on ecosystem functioning during a 7-year experiment, with 16-species plots attaining 2.7 times greater biomass than monocultures. Diversity effects were neither transients nor explained solely by a few productive or unviable species. Rather, many higher-diversity plots outperformed the best monoculture. These results help resolve debate over biodiversity and ecosystem functioning, show effects at higher than expected diversity levels, and demonstrate, for these ecosystems, that even the best-chosen monocultures cannot achieve greater productivity or carbon stores than higher-diversity sites.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tilman, D -- Reich, P B -- Knops, J -- Wedin, D -- Mielke, T -- Lehman, C -- New York, N.Y. -- Science. 2001 Oct 26;294(5543):843-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ecology, Evolution and Behavior, University of Minnesota, St. Paul, MN 55108, USA. tilman@umn.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11679667" target="_blank"〉PubMed〈/a〉
    Keywords: Analysis of Variance ; *Biomass ; *Ecosystem ; Fabaceae/growth & development ; Minnesota ; *Plant Development ; Poaceae/*growth & development ; Regression Analysis ; Seasons
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    Endangered right whales on the southeastern Bering Sea shelf (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-12-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tynan, C T -- DeMaster, D P -- Peterson, W T -- New York, N.Y. -- Science. 2001 Nov 30;294(5548):1894.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Northwest Fisheries Science Center (NWFSC), National Oceanic and Atmospheric Administration (NOAA), Seattle, WA 98112, USA. Cynthia.Tynan@noaa.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11729308" target="_blank"〉PubMed〈/a〉
    Keywords: Animal Migration ; Animals ; *Ecosystem ; *Environment ; Food Chain ; *Geography ; Pacific Ocean ; Seawater ; Survival Rate ; Temperature ; Time Factors ; Whales/*physiology
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    Where the grass never stops growing (2001)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2001-07-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pickrell, J -- New York, N.Y. -- Science. 2001 Jul 27;293(5530):625.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11474095" target="_blank"〉PubMed〈/a〉
    Keywords: Ecology ; *Ecosystem ; England ; *Fertilizers ; Poaceae/*growth & development ; Time Factors
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    Indication of global deforestation at the Cretaceous-Tertiary boundary by New Zealand fern spike (2001)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2001-11-27
    Description: The devastating effect on terrestrial plant communities of a bolide impact at the Cretaceous-Tertiary boundary is shown in fossil pollen and spore assemblages by a diverse flora being abruptly replaced by one dominated by a few species of fern. Well documented in North America, this fern spike signals widespread deforestation due to an impact winter or massive wildfires. A Southern Hemisphere record of a fern spike, together with a large iridium anomaly, indicates that the devastation was truly global. Recovery of New Zealand plant communities followed a pattern consistent with major climatic perturbations occurring after an impact winter that was possibly preceded by global wildfires.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vajda, V -- Raine, J I -- Hollis, C J -- New York, N.Y. -- Science. 2001 Nov 23;294(5547):1700-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Geology, Lund University, Tornavagen 13, SE-223 63 Lund, Sweden. vivi.vajda@geol.lu.se〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11721051" target="_blank"〉PubMed〈/a〉
    Keywords: Angiosperms/physiology ; Animals ; Carbon/metabolism ; Carbon Dioxide/metabolism ; Cold Climate ; *Disasters ; Dust ; *Ecosystem ; Ferns/*physiology ; Fires ; Fossils ; Gymnosperms/physiology ; *Meteoroids ; New Zealand ; North America ; Pollen/physiology ; Spores/physiology ; Sunlight ; Trees/*physiology
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    Mammalian TOR: a homeostatic ATP sensor (2001)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2001-11-03
    Description: The bacterial macrolide rapamycin is an efficacious anticancer agent against solid tumors. In a hypoxic environment, the increase in mass of solid tumors is dependent on the recruitment of mitogens and nutrients. When nutrient concentrations change, particularly those of essential amino acids, the mammalian Target of Rapamycin (mTOR) functions in regulatory pathways that control ribosome biogenesis and cell growth. In bacteria, ribosome biogenesis is independently regulated by amino acids and adenosine triphosphate (ATP). Here we demonstrate that the mTOR pathway is influenced by the intracellular concentration of ATP, independent of the abundance of amino acids, and that mTOR itself is an ATP sensor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dennis, P B -- Jaeschke, A -- Saitoh, M -- Fowler, B -- Kozma, S C -- Thomas, G -- New York, N.Y. -- Science. 2001 Nov 2;294(5544):1102-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Friedrich Miescher Institute for Biomedical Research, Maulbeerstrasse 66, CH-4058, Basel, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11691993" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing ; Adenosine Triphosphate/*metabolism ; Amino Acids/metabolism ; Androstadienes/pharmacology ; Carrier Proteins/metabolism ; Cell Line ; Deoxyglucose/pharmacology ; Enzyme Activation ; Homeostasis ; Humans ; Insulin/pharmacology ; Kinetics ; Phosphoproteins/metabolism ; Phosphorylation ; Protein Kinases/*metabolism ; RNA, Transfer, Amino Acyl/metabolism ; Recombinant Fusion Proteins/metabolism ; Ribosomal Protein S6 Kinases/antagonists & inhibitors/metabolism ; Ribosomes/metabolism ; Rotenone/pharmacology ; Signal Transduction ; Sirolimus/pharmacology ; TOR Serine-Threonine Kinases
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    The Gulf War's aftermath: Kuwait unveils plan to treat festering desert wound (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-08-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shouse, B -- New York, N.Y. -- Science. 2001 Aug 24;293(5534):1410.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11520953" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biodegradation, Environmental ; *Desert Climate ; *Ecosystem ; Kuwait ; *Petroleum ; Plant Development ; *Soil Pollutants ; Warfare
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 97
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    Bmf: a proapoptotic BH3-only protein regulated by interaction with the myosin V actin motor complex, activated by anoikis (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-09-08
    Description: Bcl-2 family members bearing only the BH3 domain are essential inducers of apoptosis. We identified a BH3-only protein, Bmf, and show that its BH3 domain is required both for binding to prosurvival Bcl-2 proteins and for triggering apoptosis. In healthy cells, Bmf is sequestered to myosin V motors by association with dynein light chain 2. Certain damage signals, such as loss of cell attachment (anoikis), unleash Bmf, allowing it to translocate and bind prosurvival Bcl-2 proteins. Thus, at least two mammalian BH3-only proteins, Bmf and Bim, function to sense intracellular damage by their localization to distinct cytoskeletal structures.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Puthalakath, H -- Villunger, A -- O'Reilly, L A -- Beaumont, J G -- Coultas, L -- Cheney, R E -- Huang, D C -- Strasser, A -- CA 80188/CA/NCI NIH HHS/ -- R29 DC003299/DC/NIDCD NIH HHS/ -- New York, N.Y. -- Science. 2001 Sep 7;293(5536):1829-32.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Walter and Eliza Hall Institute of Medical Research, Melbourne, P.O. Royal Melbourne Hospital, 3050 VIC, Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11546872" target="_blank"〉PubMed〈/a〉
    Keywords: *Adaptor Proteins, Signal Transducing ; Amino Acid Sequence ; Animals ; *Anoikis ; Apoptosis Regulatory Proteins ; Calmodulin-Binding Proteins/*metabolism ; Carrier Proteins/*chemistry/genetics/*metabolism ; Cell Line ; Cytoskeleton/metabolism ; *Drosophila Proteins ; Dyneins ; Gene Expression Profiling ; Humans ; *Membrane Proteins ; Mice ; Molecular Motor Proteins/*metabolism ; Molecular Sequence Data ; Mutation ; Myeloid Cell Leukemia Sequence 1 Protein ; *Myosin Type V ; Neoplasm Proteins/genetics/metabolism ; Nerve Tissue Proteins/*metabolism ; Protein Binding ; Protein Structure, Tertiary ; Protein Transport ; *Proto-Oncogene Proteins ; Proto-Oncogene Proteins c-bcl-2/chemistry/genetics/metabolism ; RNA, Messenger/analysis/genetics ; Transfection ; Two-Hybrid System Techniques
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 98
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    A ribonucleotide reductase homolog of cytomegalovirus and endothelial cell tropism (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-02-24
    Description: Human cytomegalovirus infects vascular tissues and has been associated with atherogenesis and coronary restenosis. Although established laboratory strains of human cytomegalovirus have lost the ability to grow on vascular endothelial cells, laboratory strains of murine cytomegalovirus retain this ability. With the use of a forward-genetic procedure involving random transposon mutagenesis and rapid phenotypic screening, we identified a murine cytomegalovirus gene governing endothelial cell tropism. This gene, M45, shares sequence homology to ribonucleotide reductase genes. Endothelial cells infected with M45-mutant viruses rapidly undergo apoptosis, suggesting that a viral strategy to evade destruction by cellular apoptosis is indispensable for viral growth in endothelial cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brune, W -- Menard, C -- Heesemann, J -- Koszinowski, U H -- New York, N.Y. -- Science. 2001 Jan 12;291(5502):303-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Princeton University, Princeton, NJ 08544, USA. wbrune@princeton.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11209080" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Animals ; Apoptosis ; Base Sequence ; Cell Line ; Cytopathogenic Effect, Viral ; DNA Transposable Elements ; Endothelium, Vascular/*cytology/*virology ; Fibroblasts/virology ; Frameshift Mutation ; Gene Library ; *Genes, Viral ; Mice ; Molecular Sequence Data ; Muromegalovirus/*genetics/growth & development/*physiology ; Mutagenesis, Insertional ; Open Reading Frames ; Phenotype ; Ribonucleotide Reductases/*genetics/physiology ; *Viral Proteins ; Virus Replication
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 99
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    Stem cell policy. An embryonic alternative (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-06-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vogel, G -- New York, N.Y. -- Science. 2001 Jun 8;292(5523):1822.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11397926" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Animal Experimentation ; Animals ; *Bioethics ; Cell Line ; *Embryo Research ; Embryo, Mammalian/*cytology ; Humans ; *Macaca mulatta ; *Research ; *Stem Cells
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 100
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    Effectiveness of parks in protecting tropical biodiversity (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-01-06
    Description: We assessed the impacts of anthropogenic threats on 93 protected areas in 22 tropical countries to test the hypothesis that parks are an effective means to protect tropical biodiversity. We found that the majority of parks are successful at stopping land clearing, and to a lesser degree effective at mitigating logging, hunting, fire, and grazing. Park effectiveness correlates with basic management activities such as enforcement, boundary demarcation, and direct compensation to local communities, suggesting that even modest increases in funding would directly increase the ability of parks to protect tropical biodiversity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bruner, A G -- Gullison, R E -- Rice, R E -- da Fonseca, G A -- New York, N.Y. -- Science. 2001 Jan 5;291(5501):125-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Applied Biodiversity Science at Conservation International, 2501 M Street, NW, Suite 200, Washington, DC 20037, USA. a.bruner@conservation.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11141563" target="_blank"〉PubMed〈/a〉
    Keywords: *Conservation of Natural Resources ; *Ecosystem ; Surveys and Questionnaires ; *Tropical Climate
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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