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  • United States  (658)
  • Male  (345)
  • Cloning, Molecular  (208)
  • American Association for the Advancement of Science (AAAS)  (1,167)
  • American Association of Petroleum Geologists (AAPG)
  • 1985-1989  (1,167)
Collection
Keywords
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  • American Association for the Advancement of Science (AAAS)  (1,167)
  • American Association of Petroleum Geologists (AAPG)
  • Springer  (5)
Years
Year
  • 1
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    Agent Orange studies (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-09-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1989 Sep 8;245(4922):1031.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2772652" target="_blank"〉PubMed〈/a〉
    Keywords: 2,4,5-Trichlorophenoxyacetic Acid/*adverse effects ; 2,4-Dichlorophenoxyacetic Acid/*adverse effects ; Dioxins/*adverse effects ; Humans ; Tetrachlorodibenzodioxin/*adverse effects ; United States ; *Veterans ; Vietnam
    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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    The Dingell investigation (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1989 Jun 16;244(4910):1243.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2734603" target="_blank"〉PubMed〈/a〉
    Keywords: *Biomedical Research ; Data Collection/standards ; *Ethics, Professional ; Federal Government ; *Government Regulation ; *Science ; 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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    Where was Chakrabarty's bug? (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-05-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1989 May 26;244(4907):919.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11644372" target="_blank"〉PubMed〈/a〉
    Keywords: *DNA, Recombinant ; Ecology ; *Industry ; Jurisprudence ; Microbiology ; *Patents as Topic ; *Risk ; *Risk Assessment ; Supreme Court Decisions ; United States
    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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    Animals in the laboratory (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-04-28
    Description: The first sentence of reference 15 in the report "Single-chain antigen-binding proteins" by Robert E. Bird et al. (21 Oct., p. 423) should have read, 'The majority of experiments have produced Ka's within a factor of 2 of these values; therefore, log K(a)'s for the 4-4-20 I, Fab, and 4-4-20/20' single-chain protein are 10.2, 9.9, and 9.0+/-0.3, respectively.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1989 Apr 28;244(4903):409.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2717931" target="_blank"〉PubMed〈/a〉
    Keywords: Animal Testing Alternatives ; *Animal Welfare ; Animals ; *Animals, Laboratory ; Ethics ; Societies ; United States
    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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    Isolation and expression of functional high-affinity Fc receptor complementary DNAs (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-01-20
    Description: Human and murine mononuclear phagocytes express a high-affinity receptor for immunoglobulin G that plays a central role in macrophage antibody-dependent cellular cytotoxicity and clearance of immune complexes. The receptor (FcRI) may also be involved in CD4-independent infection of human macrophages by human immunodeficiency virus. This report describes the isolation of cDNA clones encoding the human FcRI by a ligand-mediated selection technique. Expression of the cDNAs in COS cells gave rise to immunoglobulin G binding of the expected affinity and subtype specificity. RNA blot analysis revealed expression of a 1.7-kilobase transcript in macrophages and in cells of the promonocytic cell line U937 induced with interferon-gamma. The extracellular region of FcRI consists of three immunoglobulin-like domains, two of which share homology with low-affinity receptor domains.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Allen, J M -- Seed, B -- New York, N.Y. -- Science. 1989 Jan 20;243(4889):378-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Massachusetts General Hospital, Boston 02114.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2911749" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Blotting, Northern ; Cercopithecus aethiops ; Cloning, Molecular ; DNA/genetics ; Gene Expression Regulation ; Humans ; Molecular Sequence Data ; Molecular Weight ; Polymorphism, Genetic ; Receptors, Fc/*genetics ; Transfection
    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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    A question of information policy (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Atkinson, R C -- New York, N.Y. -- Science. 1989 Nov 10;246(4931):733.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2814490" target="_blank"〉PubMed〈/a〉
    Keywords: Library Services/*economics ; *National Library of Medicine (U.S.) ; United States
    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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    Golden opportunities seen in biology (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-12-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1989 Dec 1;246(4934):1115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2587998" target="_blank"〉PubMed〈/a〉
    Keywords: *Biology ; *Research Support 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
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  • 8
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    Freeze avoidance in a mammal: body temperatures below 0 degree C in an Arctic hibernator (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-30
    Description: Hibernating arctic ground squirrels, Spermophilus parryii, were able to adopt and spontaneously arouse from core body temperatures as low as -2.9 degrees C without freezing. Abdominal body temperatures of ground squirrels hibernating in outdoor burrows were recorded with temperature-sensitive radiotransmitter implants. Body temperatures and soil temperatures at hibernaculum depth reached average minima during February of -1.9 degrees and -6 degrees C, respectively. Laboratory-housed ground squirrels hibernating in ambient temperatures of -4.3 degrees C maintained above 0 degree C thoracic temperatures but decreased colonic temperatures to as low as -1.3 degrees C. Plasma sampled from animals with below 0 degree C body temperatures had normal solute concentrations and showed no evidence of containing antifreeze molecules.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barnes, B M -- HD 23383/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1989 Jun 30;244(4912):1593-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks 99775-0180.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2740905" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antifreeze Proteins ; Arctic Regions ; Arousal ; *Body Temperature ; Body Temperature Regulation ; Female ; *Freezing ; Glycoproteins/analysis ; *Hibernation ; Male ; Sciuridae/*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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  • 9
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    Neurotoxicity creates regulatory dilemma (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-01-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barnes, D M -- New York, N.Y. -- Science. 1989 Jan 6;243(4887):29-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2911718" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Humans ; *Legislation, Drug ; *Neurotoxins/toxicity ; United States ; United States Food and Drug Administration
    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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  • 10
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    Specific recognition of cruciform DNA by nuclear protein HMG1 (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-02-24
    Description: Cruciform DNA, a non-double helix form of DNA, can be generated as an intermediate in genetic recombination as well as from palindromic sequences under the effect of supercoiling. Eukaryotic cells are equipped with a DNA-binding protein that selectively recognizes cruciform DNA. Biochemical and immunological data showed that this protein is HMG1, an evolutionarily conserved, essential, and abundant component of the nucleus. The interaction with a ubiquitous protein points to a critical role for cruciform DNA conformations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bianchi, M E -- Beltrame, M -- Paonessa, G -- New York, N.Y. -- Science. 1989 Feb 24;243(4894 Pt 1):1056-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉European Molecular Biology Laboratory, Heidleberg, Federal Republic of Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2922595" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cloning, Molecular ; DNA/genetics/*metabolism ; Electrophoresis, Polyacrylamide Gel ; High Mobility Group Proteins/genetics/isolation & purification/*metabolism ; Immunoassay ; Immunoblotting ; Liver/analysis ; Molecular Sequence Data ; Molecular Weight ; *Nucleic Acid Conformation ; Peptide Fragments/genetics/isolation & purification ; Protein Biosynthesis ; Rats ; Transcription, Genetic
    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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  • 11
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    AP1/jun function is differentially induced in promotion-sensitive and resistant JB6 cells (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-05-05
    Description: Tumor promoters may bring about events that lead to neoplastic transformation by inducing specific promotion-relevant effector genes. Functional activation of the transacting transcription factor AP-1 by the phorbol ester 12-O-tetradecanoylphorbol-13-acetate (TPA) may play an essential role in this process. Clonal genetic variants of mouse epidermal JB6 cells that are genetically susceptible (P+) or resistant (P-) to promotion of transformation by TPA were transfected with 3XTRE-CAT, a construct that has AP-1 cis-enhancer sequences attached to a reporter gene encoding chloramphenicol acetyltransferase (CAT). Transfected JB6 P+, but not P- variants, showed TPA-inducible CAT synthesis. Epidermal growth factor, another transformation promoter in JB6 cells, also caused P+ specific induction of CAT gene expression. These results demonstrate an association between induced AP-1 function and sensitivity to promotion of neoplastic transformation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bernstein, L R -- Colburn, N H -- New York, N.Y. -- Science. 1989 May 5;244(4904):566-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Johns Hopkins University, Department of Biology, Baltimore, MD 21218.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2541502" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; *Cell Transformation, Neoplastic ; Chloramphenicol O-Acetyltransferase/genetics ; Cloning, Molecular ; DNA-Binding Proteins/genetics/*physiology ; Epidermal Growth Factor/pharmacology ; Epidermis ; Gene Expression Regulation ; Genetic Variation ; Kinetics ; Mice ; Nucleic Acid Hybridization ; Plasmids ; Promoter Regions, Genetic ; Proto-Oncogene Proteins ; Proto-Oncogene Proteins c-jun ; Simplexvirus/genetics ; Tetradecanoylphorbol Acetate/*pharmacology ; Transcription Factors/genetics/*physiology ; Transfection
    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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  • 12
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    Temperature and sperm incorporation in polyploid salamanders (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-24
    Description: Although most animals reproduce sexually, a number of all-female groups exist. Triploid hybrid salamanders appear to maintain themselves by using a male's sperm to activate their eggs, after which the sperm nucleus is eliminated (gynogenesis). The incidence of sperm nuclear incorporation in eggs of these salamanders depends on temperature. Triploid offspring derived gynogenetically are more frequent at lower temperature, whereas tetraploid offspring derived sexually are far more frequent at higher temperatures. Temperature-dependent variability in sperm nuclear incorporation helps explain the variability in reproductive modes reported for hybrid salamanders.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bogart, J P -- Elinson, R P -- Licht, L E -- New York, N.Y. -- Science. 1989 Nov 24;246(4933):1032-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Zoology, College of Biological Science, University of Guelph, Ontario, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2587986" target="_blank"〉PubMed〈/a〉
    Keywords: Ambystoma/genetics/*physiology ; Animals ; Crosses, Genetic ; Female ; Karyotyping ; Larva ; Male ; *Polyploidy ; Sperm-Ovum Interactions ; Spermatozoa/*physiology ; Temperature
    Print ISSN: 0036-8075
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  • 13
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    Expression of functional nerve growth factor receptors after gene transfer (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-01-20
    Description: Nerve growth factor (NGF) interacts with both high affinity (Kd = 10(-10)-10(-11)M) and low affinity (Kd = 10(-8)-10(-9)M) receptors; the binding of NGF to the high affinity receptor is correlated with biological actions of NGF. To determine whether a single NGF binding protein is common to both forms of the receptor, a full-length receptor cDNA was introduced in the NR18 cell line, an NGF receptor-deficient variant of the PC12 pheochromocytoma cell line. The transformant displayed (i) both high and low affinity receptors detectable by receptor binding; (ii) an affinity cross-linking pattern with 125I-labeled NGF similar to that of the parent PC12 cell line; and (iii) biological responsiveness to NGF as assayed by induction of c-fos transcription. These findings support the hypothesis that a single binding protein is common to both forms of the NGF receptor and suggest that an additional protein is required to produce the high affinity form of the NGF receptor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hempstead, B L -- Schleifer, L S -- Chao, M V -- HD23315/HD/NICHD NIH HHS/ -- NS-21072/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1989 Jan 20;243(4889):373-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Hematology/Oncology, Cornell University Medical College, New York, NY 10021.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2536190" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blotting, Northern ; Cloning, Molecular ; Gene Expression Regulation ; Nerve Growth Factors/pharmacology ; Pheochromocytoma ; Proto-Oncogene Proteins/genetics ; Proto-Oncogene Proteins c-fos ; Rats ; Receptors, Cell Surface/*genetics/metabolism ; Receptors, Nerve Growth Factor ; Transformation, Genetic ; Tumor Cells, Cultured
    Print ISSN: 0036-8075
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  • 14
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    Soviets seek U.S. help in combating alcoholism (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1989 Nov 17;246(4932):878-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2814507" target="_blank"〉PubMed〈/a〉
    Keywords: Alcoholism/*prevention & control/rehabilitation ; Humans ; International Cooperation ; Ussr ; United States
    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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  • 15
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    New rules on misconduct (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-08-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1989 Aug 11;245(4918):593.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2762812" target="_blank"〉PubMed〈/a〉
    Keywords: *Biomedical Research ; Crime/*legislation & jurisprudence ; Federal Government ; Fraud/*legislation & jurisprudence ; *Government Regulation ; Research Support as Topic ; United States ; *United States Dept. of Health and Human Services
    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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  • 16
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    NIH probes researcher's fundraising (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-02-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1989 Feb 24;243(4894 Pt 1):1000.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2646708" target="_blank"〉PubMed〈/a〉
    Keywords: *Financial Management ; *Fund Raising ; History, 20th Century ; National Institutes of Health (U.S.) ; *Research Personnel ; *Research Support as Topic ; United States
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    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 17
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    Monkey euthanasia stalled by activists (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1989 Jun 23;244(4911):1437.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2499929" target="_blank"〉PubMed〈/a〉
    Keywords: *Animal Welfare ; Animals ; Euthanasia/*veterinary ; *Haplorhini ; *Legislation, Veterinary ; National Institutes of Health (U.S.) ; United States
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    Electronic ISSN: 1095-9203
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  • 18
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    Kappa B-specific DNA binding proteins: role in the regulation of human interleukin-2 gene expression (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-04-28
    Description: Transcriptional activation of the human interleukin-2 (IL-2) gene, like induction of the IL-2 receptor alpha (IL-2R alpha) gene and the type 1 human immunodeficiency virus (HIV-1), is shown to be modulated by a kappa B-like enhancer element. Mutation of a kappa B core sequence identified in the IL-2 promoter (-206 to -195) partially inhibits both mitogen- and HTLV-I Tax-mediated activation of this transcription unit and blocks the specific binding of two inducible cellular factors. These kappa B-specific proteins (80 to 90 and 50 to 55 kilodaltons) similarly interact with the functional kappa B enhancer present in the IL-2R alpha promoter. These data suggest that these kappa B-specific proteins have a role in the coordinate regulation of this growth factor-growth factor receptor gene system that controls T cell proliferation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hoyos, B -- Ballard, D W -- Bohnlein, E -- Siekevitz, M -- Greene, W C -- A127053-01/PHS HHS/ -- New York, N.Y. -- Science. 1989 Apr 28;244(4903):457-60.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Mount Sinai Medical Center, Department of Microbiology, New York, NY 10029.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2497518" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Cell Line ; Cloning, Molecular ; DNA/metabolism ; DNA-Binding Proteins/*metabolism ; *Enhancer Elements, Genetic ; *Gene Expression Regulation ; Genes, Viral ; HIV-1/genetics ; HTLV-I Antigens/pharmacology ; Humans ; Immunoglobulin kappa-Chains/*genetics ; Interleukin-2/*genetics ; Molecular Weight ; Mutation ; Phytohemagglutinins/pharmacology ; Plasmids ; Promoter Regions, Genetic ; RNA, Messenger/biosynthesis ; T-Lymphocytes/metabolism ; Tetradecanoylphorbol Acetate/pharmacology ; Trans-Activators ; Transcription Factors/pharmacology ; Transcription, Genetic ; Transfection
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  • 19
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    The economic status of the elderly (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-05-12
    Description: Augmented by public programs such as Social Security and Medicare, incomes of the elderly in the United States have grown more rapidly during the last several decades than have the incomes of other groups, so that on average the elderly are at least as well off as the nonelderly. Not all elderly, however, have done as well: widows, in particular, have high poverty rates. The economic prospects of the elderly during the next few decades are good because of the large work force from the baby-boom cohort. In the distant future a large fraction of the population will be elderly, which will probably lead to a deterioration in their economic status. Today, the main problems center on the distribution of economic resources among the elderly and on uncertainties such as costs of medical care.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hurd, M D -- New York, N.Y. -- Science. 1989 May 12;244(4905):659-64.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Economics, State University of New York, Stony Brook 11794.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2655090" target="_blank"〉PubMed〈/a〉
    Keywords: *Aged ; *Economics ; Humans ; *Income ; Medicaid ; Medicare ; Poverty ; Social Security ; United States
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    Bacterial blight of soybean: regulation of a pathogen gene determining host cultivar specificity (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-09-22
    Description: Soybean cultivars resistant to Pseudomonas syringae pathovar glycinea (Psg), the causal agent of bacterial blight, exhibit a hypersensitive (necrosis) reaction (HR) to infection. Psg strains carrying the avrB gene elicit the HR in soybean cultivars carrying the resistance gene Rpg1. Psg expressing avrB at a high level and capable of eliciting the HR in the absence of de novo bacterial RNA synthesis have been obtained in in vitro culture. Nutritional signals and regions within the Psg hrp gene cluster, an approximately 20-kilobase genomic region also necessary for pathogenicity, control avrB transcription.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huynh, T V -- Dahlbeck, D -- Staskawicz, B J -- New York, N.Y. -- Science. 1989 Sep 22;245(4924):1374-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Pathology, University of California, Berkeley 94720.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2781284" target="_blank"〉PubMed〈/a〉
    Keywords: Cloning, Molecular ; DNA Mutational Analysis ; Gene Expression Regulation ; Genes, Bacterial ; *Plant Diseases ; Promoter Regions, Genetic ; Pseudomonas/*genetics/growth & development/pathogenicity ; Regulatory Sequences, Nucleic Acid ; Restriction Mapping ; Soybeans/*genetics/microbiology ; Transcription, Genetic
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 21
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    Golf: an olfactory neuron specific-G protein involved in odorant signal transduction (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-05-19
    Description: Biochemical and electrophysiological studies suggest that odorants induce responses in olfactory sensory neurons via an adenylate cyclase cascade mediated by a G protein. An olfactory-specific guanosine triphosphate (GTP)-binding protein alpha subunit has now been characterized and evidence is presented suggesting that this G protein, termed Golf, mediates olfaction. Messenger RNA that encodes Golf alpha is expressed in olfactory neuroephithelium but not in six other tissues tested. Moreover, within the olfactory epithelium, Golf alpha appears to be expressed only by the sensory neurons. Specific antisera were used to localize Golf alpha protein to the sensory apparatus of the receptor neurons. Golf alpha shares extensive amino acid identity (88 percent) with the stimulatory G protein, Gs alpha. The expression of Golf alpha in S49 cyc- kin- cells, a line deficient in endogenous stimulatory G proteins, demonstrates its capacity to stimulate adenylate cyclase in a heterologous system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jones, D T -- Reed, R R -- New York, N.Y. -- Science. 1989 May 19;244(4906):790-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Molecular Biology and Genetic Johns Hopkins School of Medicine, Baltimore, MD 21205.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2499043" target="_blank"〉PubMed〈/a〉
    Keywords: Adenylyl Cyclases/metabolism ; Amino Acid Sequence ; Animals ; Base Sequence ; Cloning, Molecular ; GTP-Binding Proteins/analysis/genetics/*physiology ; Gene Expression Regulation ; Immunoblotting ; Immunohistochemistry ; Molecular Sequence Data ; Neurons, Afferent/analysis/*physiology ; *Odors ; Olfactory Bulb/physiology ; Olfactory Mucosa/analysis/*innervation ; RNA, Messenger/analysis/genetics ; Rats ; Sequence Homology, Nucleic Acid ; *Signal Transduction ; Tissue Distribution ; Transfection
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    Ectopic expression of the serotonin 1c receptor and the triggering of malignant transformation (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-02
    Description: Neurotransmitter receptors are usually restricted to neuronal cells, but the signaling pathways activated by these receptors are widely distributed in both neural and non-neural cells. The functional consequences of activating a brain-specific neurotransmitter receptor, the serotonin 5HT1c receptor, in the unnatural environment of a fibroblast were examined. Introduction of functional 5HT1c receptors into NIH 3T3 cells results, at high frequency, in the generation of transformed foci. Moreover, the generation and maintenance of transformed foci requires continued activation of the serotonin receptor. In addition, the injection of cells derived from transformed foci into nude mice results in the generation of tumors. The serotonin 5HT1c receptor therefore functions as a protooncogene when expressed in NIH 3T3 fibroblasts.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Julius, D -- Livelli, T J -- Jessell, T M -- Axel, R -- New York, N.Y. -- Science. 1989 Jun 2;244(4908):1057-62.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biophysics, College of Physicians and Surgeons, Columbia University, New York, NY 10032.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2727693" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Calcium/pharmacology ; Cell Division ; Cell Line ; *Cell Transformation, Neoplastic ; Cloning, Molecular ; Fibroblasts/metabolism ; *Gene Expression Regulation ; Genetic Vectors ; Mice ; Mice, Nude ; Neoplasm Transplantation ; Receptors, Serotonin/*genetics/physiology ; Second Messenger Systems ; Serotonin/pharmacology/physiology ; Transfection
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Defensive behaviors in infant rhesus monkeys: environmental cues and neurochemical regulation (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-03-31
    Description: To survive, primates must detect danger in time to activate appropriate defensive behaviors. In this study, the defensive behaviors of infant rhesus monkeys exposed to humans were characterized. It was observed that the direction of the human's gaze is a potent cue for the infant. Infants separated from their mothers were active and emitted frequent distress vocalizations. When a human entered the room but did not look at the infant, it became silent and froze in one position. If the human stared at the infant, it responded with aggressive barking. Alterations of the opiate system affected the frequency of the infant's distress calls without affecting barking and freezing, whereas benzodiazepine administration selectively reduced barking and freezing. This suggests that opiate and benzodiazepine systems regulate specific defensive behaviors in primates and that these systems work together to mediate behavioral responses important for survival.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kalin, N H -- Shelton, S E -- DK-35641/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1989 Mar 31;243(4899):1718-21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychiatry, University of Wisconsin, Madison.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2564702" target="_blank"〉PubMed〈/a〉
    Keywords: Aggression/physiology ; Animals ; Behavior, Animal/drug effects/*physiology ; Benzodiazepines/physiology ; Diazepam/pharmacology ; Endorphins/antagonists & inhibitors/physiology ; *Fear ; Female ; Macaca/*physiology ; Macaca mulatta/*physiology ; Male ; Morphine/pharmacology ; Motion ; Motor Activity/drug effects/physiology ; Naloxone/pharmacology ; Neurotransmitter Agents/*physiology ; Vision, Ocular ; Vocalization, Animal/drug effects/physiology
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    Vascular permeability factor, an endothelial cell mitogen related to PDGF (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-12-08
    Description: Vascular permeability factor (VPF) is a 40-kilodalton disulfide-linked dimeric glycoprotein that is active in increasing blood vessel permeability, endothelial cell growth, and angiogenesis. These properties suggest that the expression of VPF by tumor cells could contribute to the increased neovascularization and vessel permeability that are associated with tumor vasculature. The cDNA sequence of VPF from human U937 cells was shown to code for a 189-amino acid polypeptide that is similar in structure to the B chain of platelet-derived growth factor (PDGF-B) and other PDGF-B-related proteins. The overall identity with PDGF-B is 18%. However, all eight of the cysteines in PDGF-B were found to be conserved in human VPF, an indication that the folding of the two proteins is probably similar. Clusters of basic amino acids in the COOH-terminal halves of human VPF and PDGF-B are also prevalent. Thus, VPF appears to be related to the PDGF/v-sis family of proteins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Keck, P J -- Hauser, S D -- Krivi, G -- Sanzo, K -- Warren, T -- Feder, J -- Connolly, D T -- New York, N.Y. -- Science. 1989 Dec 8;246(4935):1309-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Culture and Biochemistry, Monsanto Company, St. Louis, MO 63167.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2479987" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Capillary Permeability/physiology ; Cell Division/physiology ; Cloning, Molecular ; Endothelium, Vascular/*cytology ; *Growth Substances ; Guinea Pigs ; Humans ; Lymphokines/*physiology ; Molecular Sequence Data ; Neovascularization, Pathologic/physiopathology ; Oncogene Proteins v-sis ; Platelet-Derived Growth Factor/physiology ; Retroviridae Proteins, Oncogenic/physiology ; Sequence Homology, Nucleic Acid ; Transforming Growth Factors ; Vascular Endothelial Growth Factor A ; Vascular Endothelial Growth Factors
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    Corticosteroid modulation of hippocampal potentials: increased effect with aging (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-09-29
    Description: Adrenal steroids bind specifically to hippocampal neurons under normal conditions and may contribute to hippocampal cell loss during aging, but little is known about the neurophysiological mechanisms by which they may change hippocampal cell functions. In the present studies, adrenal steroids have been shown to modulate a well-defined membrane conductance in hippocampal pyramidal cells. The calcium-dependent slow afterhyperpolarization is reduced in hippocampal slices from adrenalectomized rats, and it is increased after in vivo or in vitro administration of the adrenal steroid, corticosterone. Calcium action potentials are also reduced in adrenalectomized animals, indicating that the primary effect of corticosteroids may be on calcium conductance. The afterhyperpolarization component reduced by adrenalectomy is greater in aged rats than in young rats, suggesting that, with aging, there is an increased effect of corticosteroids on some calcium-mediated brain processes. Because elevated concentrations of intracellular calcium can be cytotoxic, these observations may increase the understanding of glucocorticoid involvement in brain aging as well as of the normal functions of these steroids in the brain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kerr, D S -- Campbell, L W -- Hao, S Y -- Landfield, P W -- AG04542/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 1989 Sep 29;245(4925):1505-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology and Pharmacology, Bowman Gray School of Medicine, Winston-Salem, NC 27103.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2781293" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials/drug effects ; Adrenal Cortex Hormones/*pharmacology ; Adrenalectomy ; Aging/*physiology ; Animals ; Calcium/metabolism ; Hippocampus/*drug effects ; In Vitro Techniques ; Male ; Neurons/drug effects ; Rats ; Rats, Inbred F344 ; Tetrodotoxin/pharmacology
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    The choosing of the NIH director (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koshland, D E Jr -- New York, N.Y. -- Science. 1989 Nov 24;246(4933):981.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2587989" target="_blank"〉PubMed〈/a〉
    Keywords: Abortion, Legal ; Female ; Humans ; National Institutes of Health (U.S.)/*organization & administration ; Politics ; Pregnancy ; United States ; United States Dept. of Health and Human Services
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    Animal rights and animal wrongs (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-03-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koshland, D E Jr -- New York, N.Y. -- Science. 1989 Mar 10;243(4896):1253.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2922608" target="_blank"〉PubMed〈/a〉
    Keywords: *Animal Welfare ; Animals ; Societies ; United States ; Universities
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  • 28
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    Switch protein alters specificity of RNA polymerase containing a compartment-specific sigma factor (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-01-27
    Description: During sporulation in Bacillus subtilis, expression of developmental genes spoIVCB and cotD is induced in the mother cell compartment of the sporangium at morphological stages IV and V, respectively. A 27-kilodalton RNA polymerase sigma factor called sigma K (or sigma 27) has been found that causes weak transcription of spoIVCB and strong transcription of cotD. A 14-kD protein was also discovered that changes the specificity of sigma K-containing RNA polymerase, greatly stimulating spoIVCB transcription and markedly repressing cotD transcription. Both sigma K and the 14-kD protein are products of genes known to be required for expression of specific genes in the mother cell. Thus, sigma K directs gene expression in the mother cell and it is proposed that inactivation or sequestering of the 14-kD protein switches the temporal pattern of gene expression during the transition from stages IV to V of development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kroos, L -- Kunkel, B -- Losick, R -- GM18568/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1989 Jan 27;243(4890):526-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cellular and Developmental Biology, Harvard University, Cambridge, Massachusetts 02138.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2492118" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Bacillus subtilis/*genetics/physiology ; Cloning, Molecular ; DNA-Directed RNA Polymerases/*genetics/isolation & purification ; Electrophoresis, Polyacrylamide Gel ; Gene Expression Regulation ; Molecular Sequence Data ; Promoter Regions, Genetic ; Sigma Factor/*genetics/isolation & purification ; Spores, Bacterial/genetics ; Transcription Factors/*genetics ; Transcription, Genetic
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  • 29
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    Adenylyl cyclase amino acid sequence: possible channel- or transporter-like structure (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-30
    Description: Complementary DNA's that encode an adenylyl cyclase were isolated from a bovine brain library. Most of the deduced amino acid sequence of 1134 residues is divisible into two alternating sets of hydrophobic and hydrophilic domains. Each of the two large hydrophobic domains appears to contain six transmembrane spans. Each of the two large hydrophilic domains contains a sequence that is homologous to a single cytoplasmic domain of several guanylyl cyclases; these sequences may represent nucleotide binding sites. An unexpected topographical resemblance between adenylyl cyclase and various plasma membrane channels and transporters was observed. This structural complexity suggests possible, unappreciated functions for this important enzyme.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Krupinski, J -- Coussen, F -- Bakalyar, H A -- Tang, W J -- Feinstein, P G -- Orth, K -- Slaughter, C -- Reed, R R -- Gilman, A G -- CA16519/CA/NCI NIH HHS/ -- GM12230/GM/NIGMS NIH HHS/ -- GM34497/GM/NIGMS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1989 Jun 30;244(4912):1558-64.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas 75235.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2472670" target="_blank"〉PubMed〈/a〉
    Keywords: *Adenylyl Cyclases/genetics/isolation & purification ; Amino Acid Sequence ; Animals ; Base Sequence ; Brain/enzymology ; *Carrier Proteins ; Cattle ; Cell Line ; Cloning, Molecular ; DNA/genetics ; Electrophoresis, Polyacrylamide Gel ; *Ion Channels ; Membrane Proteins ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Protein Conformation ; Transfection
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  • 30
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    An assay for circulating antibodies to a major etiologic virus of human non-A, non-B hepatitis (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-04-21
    Description: A specific assay has been developed for a blood-borne non-A, non-B hepatitis (NANBH) virus in which a polypeptide synthesized in recombinant yeast clones of the hepatitis C virus (HCV) is used to capture circulating viral antibodies. HCV antibodies were detected in six of seven human sera that were shown previously to transmit NANBH to chimpanzees. Assays of ten blood transfusions in the United States that resulted in chronic NANBH revealed that there was at least one positive blood donor in nine of these cases and that all ten recipients seroconverted during their illnesses. About 80 percent of chronic, post-transfusion NANBH (PT-NANBH) patients from Italy and Japan had circulating HCV antibody; a much lower frequency (15 percent) was observed in acute, resolving infections. In addition, 58 percent of NANBH patients from the United States with no identifiable source of parenteral exposure to the virus were also positive for HCV antibody. These data indicate that HCV is a major cause of NANBH throughout the world.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kuo, G -- Choo, Q L -- Alter, H J -- Gitnick, G L -- Redeker, A G -- Purcell, R H -- Miyamura, T -- Dienstag, J L -- Alter, M J -- Stevens, C E -- New York, N.Y. -- Science. 1989 Apr 21;244(4902):362-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Chiron Corporation, Emeryville, CA 94608.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2496467" target="_blank"〉PubMed〈/a〉
    Keywords: Antibodies, Viral/*analysis ; Blood Donors ; Blood Transfusion ; Hepatitis C/*immunology/transmission ; Hepatitis Viruses/*immunology ; Hepatitis, Viral, Human/*immunology ; Humans ; Italy ; Japan ; United States
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    Reverse transcriptase in a clinical strain of Escherichia coli: production of branched RNA-linked msDNA (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-02-24
    Description: Branched RNA-linked multicopy single-stranded DNA (msDNA) originally detected in myxobacteria has now been found in a clinical isolate of Escherichia coli. Although lacking homology in the primary structure, the E. coli msDNA is similar in secondary structure to the myxobacterial msDNA's, including the 2',5'-phosphodiester linkage between RNA and DNA. A chromosomal DNA fragment responsible for the production of msDNA was cloned in an E. coli K12 strain; its DNA sequence revealed an open reading frame (ORF) of 586 amino acid residues. The ORF shows sequence similarity with retroviral reverse transcriptases and ribonuclease H. Disruption of the ORF blocked msDNA production, indicating that this gene is essential for msDNA synthesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lampson, B C -- Sun, J -- Hsu, M Y -- Vallejo-Ramirez, J -- Inouye, S -- Inouye, M -- F32 GM11970-01A1/GM/NIGMS NIH HHS/ -- GM26843/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1989 Feb 24;243(4894 Pt 1):1033-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Robert Wood Johnson Medical School, University of Medicine and Dentistry of New Jersey, Piscataway 08854.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2466332" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Cloning, Molecular ; DNA Probes ; DNA Restriction Enzymes ; DNA, Bacterial/genetics ; DNA, Single-Stranded/analysis/biosynthesis/*genetics ; Endoribonucleases/genetics ; Escherichia coli/enzymology/*genetics ; Genes, Bacterial ; HIV/enzymology/genetics ; Human T-lymphotropic virus 1/enzymology/genetics ; Molecular Sequence Data ; Myxococcales/genetics ; Nucleic Acid Hybridization ; RNA, Bacterial/analysis/biosynthesis/*genetics ; RNA-Directed DNA Polymerase/*genetics ; Retroviridae/*enzymology/genetics ; Ribonuclease H ; Sequence Homology, Nucleic Acid ; Transformation, Bacterial
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    Multiple mutations in HIV-1 reverse transcriptase confer high-level resistance to zidovudine (AZT) (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-12-01
    Description: Human immunodeficiency virus (HIV) isolates with reduced sensitivity to zidovudine (3'-azido-3'-deoxythymidine, AZT) from individuals with acquired immunodeficiency syndrome (AIDS) or AIDS-related complex were studied to determine the genetic basis of their resistance. Most were sequential isolates obtained at the initiation of and during therapy. Comparative nucleotide sequence analysis of the reverse transcriptase (RT) coding region from five pairs of sensitive and resistant isolates identified three predicted amino acid substitutions common to all the resistant strains (Asp67----Asn, Lys70----Arg, Thr215----Phe or Tyr) plus a fourth in three isolates (Lys219----Gln). Partially resistant isolates had combinations of these four changes. An infectious molecular clone constructed with these four mutations in RT yielded highly resistant HIV after transfection of T cells. The reproducible nature of these mutations should make it possible to develop rapid assays to predict zidovudine resistance by performing polymerase chain reaction amplification of nucleic acid from peripheral blood lymphocytes, thereby circumventing current lengthy HIV isolation and sensitivity testing.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Larder, B A -- Kemp, S D -- New York, N.Y. -- Science. 1989 Dec 1;246(4934):1155-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Sciences Department, Wellcome Research Laboratories, Beckenham, Kent, United Kingdom.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2479983" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS-Related Complex/drug therapy/microbiology ; Acquired Immunodeficiency Syndrome/drug therapy/*microbiology ; Amino Acid Sequence ; Cloning, Molecular ; Drug Resistance/genetics ; Genes, Viral ; HIV-1/drug effects/*enzymology/genetics ; Humans ; Molecular Sequence Data ; *Mutation ; RNA-Directed DNA Polymerase/*genetics ; Zidovudine/pharmacology/*therapeutic use
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    Monitoring the AIDS epidemic in the United States: a network approach (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-09
    Description: Respondents in the 1988 General Social Survey (GSS) were asked to scan their acquaintance networks to identify all those who had been a victim of a homicide or had acquired immunodeficiency syndrome (AIDS). Estimates of the sex, race, age, and regional breakdowns for homicides in the last year and for people with AIDS were compared with official statistics. The GSS estimates for the distribution of homicide victims replicate the official statistics quite well. The GSS estimates for AIDS cases suggest that the data provided to the Centers for Disease Control may underestimate by a substantial margin the prevalence of AIDS in the white population of higher socioeconomic status, overstate the relative prevalence of the disease in the minority populations, underestimate the prevalence of the disease in the Midwest, and overstate it for the East.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Laumann, E O -- Gagnon, J H -- Michaels, S -- Michael, R T -- Coleman, J S -- N0I-HD-8-2907/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1989 Jun 9;244(4909):1186-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Sociology, University of Chicago, IL 60637.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2543079" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*epidemiology ; Centers for Disease Control and Prevention (U.S.) ; Demography ; Female ; Humans ; Male ; Population Surveillance ; United States
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    Identification of the molecular defect in a family with spondyloepiphyseal dysplasia (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-05-26
    Description: Spondyloepiphyseal dysplasias (SED) are a heterogeneous group of inherited disorders characterized by disproportionate short stature and pleiotropic involvement of the skeletal and ocular systems. Evidence has suggested that SED may result from structural defects in type II collagen. To confirm the validity of this hypothesis, the structure of the "candidate" type II collagen gene (COL2A1) has been directly examined in a relatively large SED family. Coarse scanning of the gene by Southern blot hybridization identified an abnormal restriction pattern in one of the affected members of the kindred. Analysis of selected genomic fragments, amplified by the polymerase chain reaction, precisely localized the molecular defect and demonstrated that all affected family members carried the same heterozygous single-exon deletion. As a consequence of the mutation, nearly 90 percent of the assembled type II collagen homotrimers are expected to contain one or more procollagen subunits harboring an interstitial deletion of 36 amino acids in the triple helical domain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, B -- Vissing, H -- Ramirez, F -- Rogers, D -- Rimoin, D -- AR-38648/AR/NIAMS NIH HHS/ -- HD-22657/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1989 May 26;244(4907):978-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, State University of New York Health Science Center, Brooklyn 11203.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2543071" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Child, Preschool ; Chromosome Deletion ; Collagen/*genetics ; DNA Restriction Enzymes ; DNA-Directed DNA Polymerase ; Exons ; Female ; Gene Amplification ; Humans ; Macromolecular Substances ; Male ; Molecular Sequence Data ; Mutation ; Nucleic Acid Hybridization ; Osteochondrodysplasias/*genetics ; Pedigree ; Procollagen/genetics
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    Secretion of activin by interstitial cells in the testis (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-01-20
    Description: Activin, a dimer formed by the beta subunits of inhibin, has an effect that is opposite to that of inhibin in a number of biological systems. Which cell types secrete activin in vivo is not known. TM3 cells, a Leydig-derived cell line, contained messenger RNAs that hybridized with human beta A and beta B complementary DNA probes and were similar in size to the porcine messenger RNA for the beta subunits of inhibin. No hybridization to the inhibin alpha subunit was detectable in the TM3 cells. Conditioned medium from TM3 cells and from primary cultures of rat and porcine interstitial cells stimulated the release of follicle-stimulating hormone in a pituitary cell culture assay. It is likely that, in the testis, the Leydig cells secrete activin and the Sertoli cells produce inhibin, or a combination of both.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, W -- Mason, A J -- Schwall, R -- Szonyi, E -- Mather, J P -- New York, N.Y. -- Science. 1989 Jan 20;243(4889):396-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Culture, Genentech, South San Francisco, CA 94080.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2492117" target="_blank"〉PubMed〈/a〉
    Keywords: Activins ; Animals ; Cell Line ; Follicle Stimulating Hormone/secretion ; Inhibins/*physiology/*secretion ; Leydig Cells/*physiology ; Male ; Mice ; Rats ; Sertoli Cells/physiology ; Swine ; Testis/cytology/*physiology
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    Animal research and government policy (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-03-03
    Description: In the report "Synthetic CD4 peptide derivatives that inhibit HIV infection and cytopathicity" by Jeffrey D. Lifson et al. (5 Aug., p. 712), the last seven residues of the CD4 peptide (26-50) should have been SFLTKGP rather than STLTKGP.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Langer, G A -- New York, N.Y. -- Science. 1989 Mar 3;243(4895):1126.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2922600" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Animals, Laboratory ; *Policy Making ; *Research ; United States ; *United States Dept. of Health and Human Services
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    Genome planners fear avalanche of red tape (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1989 Jun 30;244(4912):1543.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2740900" target="_blank"〉PubMed〈/a〉
    Keywords: *Base Sequence ; Budgets/economics ; *Chromosome Mapping ; *Chromosomes, Human ; Humans ; International Cooperation ; National Institutes of Health (U.S.)/*organization & administration ; Research Support as Topic ; United States
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    Global ban sought on ivory trade (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1989 Jun 9;244(4909):1135.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2727699" target="_blank"〉PubMed〈/a〉
    Keywords: Africa ; Animals ; Animals, Wild ; *Elephants ; Industry ; United States
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    Vascular endothelial growth factor is a secreted angiogenic mitogen (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-12-08
    Description: Vascular endothelial growth factor (VEGF) was purified from media conditioned by bovine pituitary folliculostellate cells (FC). VEGF is a heparin-binding growth factor specific for vascular endothelial cells that is able to induce angiogenesis in vivo. Complementary DNA clones for bovine and human VEGF were isolated from cDNA libraries prepared from FC and HL60 leukemia cells, respectively. These cDNAs encode hydrophilic proteins with sequences related to those of the A and B chains of platelet-derived growth factor. DNA sequencing suggests the existence of several molecular species of VEGF. VEGFs are secreted proteins, in contrast to other endothelial cell mitogens such as acidic or basic fibroblast growth factors and platelet-derived endothelial cell growth factor. Human 293 cells transfected with an expression vector containing a bovine or human VEGF cDNA insert secrete an endothelial cell mitogen that behaves like native VEGF.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Leung, D W -- Cachianes, G -- Kuang, W J -- Goeddel, D V -- Ferrara, N -- New York, N.Y. -- Science. 1989 Dec 8;246(4935):1306-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Genetech, South San Francisco, CA 94080.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2479986" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Blotting, Northern ; Cattle ; Cell Division ; Cloning, Molecular ; Endothelium, Vascular/*cytology ; Gene Library ; Humans ; Lymphokines/genetics/*physiology/secretion ; Molecular Sequence Data ; Neovascularization, Pathologic/*physiopathology ; Sequence Homology, Nucleic Acid ; Vascular Endothelial Growth Factor A ; Vascular Endothelial Growth Factors
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    Information policy (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-12-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lindberg, D A -- New York, N.Y. -- Science. 1989 Dec 22;246(4937):1547-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2688089" target="_blank"〉PubMed〈/a〉
    Keywords: *Costs and Cost Analysis ; MEDLARS/*economics ; *National Library of Medicine (U.S.) ; United States
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    Purification, cloning, and expression of ciliary neurotrophic factor (CNTF) (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-24
    Description: Ciliary neurotrophic factor (CNTF) is one of a small number of proteins with neurotrophic activities distinct from nerve growth factor (NGF). CNTF has now been purified and cloned and the primary structure of CNTF from rabbit sciatic nerve has been determined. Biologically active CNTF has been transiently expressed from a rabbit complementary DNA clone. CNTF is a neural effector without significant sequence homologies to any previously reported protein.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lin, L F -- Mismer, D -- Lile, J D -- Armes, L G -- Butler, E T 3rd -- Vannice, J L -- Collins, F -- New York, N.Y. -- Science. 1989 Nov 24;246(4933):1023-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Protein Chemistry Group, Synergen, Inc., Boulder, CO 80301.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2587985" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cell Line ; Ciliary Neurotrophic Factor ; Cloning, Molecular ; DNA/genetics ; Molecular Sequence Data ; Nerve Growth Factors/*genetics ; Nerve Tissue Proteins/biosynthesis/*genetics/isolation & purification ; Rabbits ; Recombinant Proteins/biosynthesis ; Sciatic Nerve/metabolism ; Transfection
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    Isolation of human transcribed sequences from human-rodent somatic cell hybrids (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-10
    Description: A method was developed for selectively isolating genes from localized regions of the human genome that are contained in interspecific hybrid cells. Complementary human DNA was prepared from a human-rodent somatic cell hybrid that contained less than 1% human DNA, by using consensus 5' intron splice sequences as primers. These primers would select immature, unspliced messenger RNA (still retaining species-specific repeat sequences) as templates. Screening a derived complementary DNA library for human repeat sequences resulted in the isolation of human clones at the anticipated frequency with characteristics expected of exons of transcribed human genes--single copy sequences that hybridized to discrete bands on Northern (RNA) blots.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, P -- Legerski, R -- Siciliano, M J -- GM19436/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1989 Nov 10;246(4931):813-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics, University of Texas, M.D. Anderson Cancer Center, Houston 77030.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2479099" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blotting, Northern ; Blotting, Southern ; Chromosome Mapping ; Chromosomes, Human, Pair 19 ; Cloning, Molecular ; Cricetinae ; DNA/biosynthesis/genetics/*isolation & purification ; Humans ; *Hybrid Cells ; Introns ; Nucleic Acid Hybridization ; RNA/genetics ; Repetitive Sequences, Nucleic Acid ; Restriction Mapping ; Templates, Genetic
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    Recombinant 47-kilodalton cytosol factor restores NADPH oxidase in chronic granulomatous disease (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-07-28
    Description: A 47-kilodalton neutrophil cytosol factor (NCF-47k), required for activation of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase superoxide (O2-.) production, is absent in most patients with autosomal recessive chronic granulomatous disease (AR-CGD). NCF-47k cDNAs were cloned from an expression library. The largest clone predicted a 41.9-kD protein that contained an arginine and serine-rich COOH-terminal domain with potential protein kinase C phosphorylation sites. A 33-amino acid segment of NCF-47k shared 49% identity with ras p21 guanosine triphosphatase activating protein. Recombinant NCF-47k restored O2-. -producing activity to AR-CGD neutrophil cytosol in a cell-free assay. Production of active recombinant NCF-47k will enable functional regions of this molecule to be mapped.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lomax, K J -- Leto, T L -- Nunoi, H -- Gallin, J I -- Malech, H L -- New York, N.Y. -- Science. 1989 Jul 28;245(4916):409-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Bacterial Diseases Section, National Institute of Allergy and Infectious Diseases, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2547247" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Blotting, Northern ; Cloning, Molecular ; DNA/*genetics ; Granulomatous Disease, Chronic/enzymology/*genetics ; Humans ; Immunoblotting ; Molecular Sequence Data ; NADH, NADPH Oxidoreductases/*metabolism ; NADPH Oxidase ; Neutrophils/*metabolism ; Phosphoproteins/*genetics/metabolism ; Phosphorylation ; Recombinant Proteins/genetics/metabolism ; Superoxides/metabolism
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    Molecular cloning of genes under control of the circadian clock in Neurospora (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-01-20
    Description: To investigate the regulation of messenger RNA abundance by circadian clocks, genomic and complementary DNA libraries were screened with complementary DNA probes enriched, by means of sequential rounds of subtractive hybridization, for sequences complementary to transcripts specific to either early morning or early evening cultures of Neurospora. Only two morning-specific genes were identified through this protocol. RNA blot analysis verified that the abundance of the transcripts arising from these genes oscillates with a period of 21.5 hours in a clock wild-type strain and 29 hours in the long-period clock mutant strain frq7. Genetic mapping through the use of restriction fragment length polymorphisms shows the two genes, ccg-1 and ccg-2, to be unlinked. These data provide a view of the extent of clock control of gene expression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Loros, J J -- Denome, S A -- Dunlap, J C -- CA-23108/CA/NCI NIH HHS/ -- GM 34985/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1989 Jan 20;243(4889):385-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Dartmouth Medical School, Hanover, NH 03756.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2563175" target="_blank"〉PubMed〈/a〉
    Keywords: Chromosome Mapping ; *Circadian Rhythm ; Cloning, Molecular ; Genes, Fungal ; Neurospora/*genetics ; Neurospora crassa/*genetics/physiology ; Polymorphism, Restriction Fragment Length ; RNA, Fungal/genetics ; RNA, Messenger/genetics
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    Cloning and sequencing of porcine LH-hCG receptor cDNA: variants lacking transmembrane domain (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-08-04
    Description: Complementary DNA clones, encoding the LH-hCG (luteinizing hormone-human choriogonadotropic hormone) receptor were isolated by screening a lambda gt11 library with monoclonal antibodies. The primary structure of the protein was deduced from the DNA sequence analysis; the protein contains 696 amino acids with a putative signal peptide of 27 amino acids. Hydropathy analysis suggests the existence of seven transmembrane domains that show homology with the corresponding regions of other G protein-coupled receptors. Three other types of clones corresponding to shorter proteins were observed, in which the putative transmembrane domain was absent. These probably arose through alternative splicing. RNA blot analysis showed similar patterns in testis and ovary with a major RNA of 4700 nucleotides and several minor species. The messenger RNA was expressed in COS-7 cells, yielding a protein that bound hCG with the same affinity as the testicular receptor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Loosfelt, H -- Misrahi, M -- Atger, M -- Salesse, R -- Vu Hai-Luu Thi, M T -- Jolivet, A -- Guiochon-Mantel, A -- Sar, S -- Jallal, B -- Garnier, J -- New York, N.Y. -- Science. 1989 Aug 4;245(4917):525-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut National de la Sante et de la Recherche Medicale Unite 135, Hopital de Bicetre, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2502844" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cell Membrane/*metabolism ; *Cloning, Molecular ; DNA/*genetics ; Female ; GTP-Binding Proteins/metabolism ; Male ; Molecular Sequence Data ; Mutation ; Nucleic Acid Hybridization ; Ovary/analysis ; Protein Sorting Signals/genetics ; RNA, Messenger/analysis/genetics ; Receptors, LH/*genetics/metabolism ; Sequence Homology, Nucleic Acid ; Swine ; Testis/analysis ; Tissue Distribution
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    Financial impact of animal regulation (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Glantz, S A -- New York, N.Y. -- Science. 1989 Jun 30;244(4912):1531.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2740895" target="_blank"〉PubMed〈/a〉
    Keywords: *Animal Experimentation ; *Animal Welfare ; Animals ; *Animals, Laboratory ; *Economics ; Federal Government ; *Government Regulation ; *Legislation, Veterinary ; National Institutes of Health (U.S.) ; United States
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    House trims off academic pork (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-11-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Norman, C -- New York, N.Y. -- Science. 1989 Nov 24;246(4933):990.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2587994" target="_blank"〉PubMed〈/a〉
    Keywords: Politics ; *Research Support as Topic ; United States ; Universities/*economics
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    Expression and characterization of a functional myosin head fragment in Dictyostelium discoideum (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-03
    Description: The isolated head fragment of myosin is a motor protein that is able to use energy liberated from the hydrolysis of adenosine triphosphate to cause sliding movement of actin filaments. Expression of a myosin fragment nearly equivalent to the amino-terminal globular head domain, generally referred to as subfragment 1, has been achieved by transforming the eukaryotic organism Dictyostelium discoideum with a plasmid that carries a 2.6-kilobase fragment of the cloned Dictyostelium myosin heavy chain gene under the control of the Dictyostelium actin-15 promoter. The recombinant fragment of the myosin heavy chain was purified 2400-fold from one of the resulting cell lines and was found to be functional by the following criteria: the myosin head fragment copurified with the essential and regulatory myosin light chains, decorated actin filaments, and displayed actin-activated adenosine triphosphatase activity. In addition, motility assays in vitro showed that the recombinant myosin fragment is capable of supporting sliding movement of actin filaments.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Manstein, D J -- Ruppel, K M -- Spudich, J A -- GM 33289/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1989 Nov 3;246(4930):656-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Stanford University School of Medicine, CA 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2530629" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/genetics ; Cell Line ; Cloning, Molecular ; Dictyostelium/*genetics ; *Gene Expression ; *Genes ; Genetic Vectors ; Molecular Weight ; Myosin Subfragments/*genetics/isolation & purification ; Myosins/genetics/metabolism ; Plasmids ; Promoter Regions, Genetic
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    Mapping the Drosophila genome with yeast artificial chromosomes (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-03
    Description: The ability to clone large fragments of DNA in yeast artificial chromosomes (YAC's) has created the possibility of obtaining global physical maps of complex genomes. For this application to be feasible, most sequences in complex genomes must be able to be cloned in YAC's, and most clones must be genetically stable and colinear with the genomic sequences from which they originated (that is, not liable to undergo rearrangement). These requirements have been met with a YAC library containing DNA fragments from Drosophila melanogaster ranging in size up to several hundred kilobase pairs. Preliminary characterization of the Drosophila YAC library was carried out by in situ hybridization of random clones and analysis of clones containing known sequences. The results suggest that most euchromatic sequences can be cloned. The library also contains clones in which the inserted DNA is derived from the centromeric heterochromatin. The locations of 58 clones collectively representing about 8 percent of the euchromatic genome are presented.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Garza, D -- Ajioka, J W -- Burke, D T -- Hartl, D L -- New York, N.Y. -- Science. 1989 Nov 3;246(4930):641-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Washington University School of Medicine, St. Louis, MO 63110-1095.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2510296" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Chromosome Mapping ; Chromosomes, Fungal ; Cloning, Molecular ; Drosophila melanogaster/*genetics ; *Genes ; Genomic Library ; Heterochromatin/analysis ; Recombination, Genetic ; Saccharomyces cerevisiae/genetics ; Salivary Glands/cytology
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    A pertussis toxin-sensitive G protein in hippocampal long-term potentiation (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-05-26
    Description: High-frequency (tetanic) stimulation of presynaptic nerve tracts in the hippocampal region of the brain can lead to long-term synaptic potentiation (LTP). Pertussis toxin prevented the development of tetanus-induced LTP in the stratum radiatum-CA1 synaptic system of rat hippocampal slices, indicating that a guanosine triphosphate-binding protein (G protein) may be required for the initiation of LTP. This G protein may be located at a site distinct from the postsynaptic neuron (that is, in presynaptic terminals or glial cells) since maximal activation of CA1 neuronal G proteins by intracellular injection of guanosine-5'-O-(3-thiotriphosphate), a nonhydrolyzable analog of guanosine 5'-triphosphate, did not occlude LTP.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goh, J W -- Pennefather, P S -- New York, N.Y. -- Science. 1989 May 26;244(4907):980-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Faculty of Pharmacy, University of Toronto, Ontario, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2543072" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Baclofen/pharmacology ; Electric Conductivity ; Enzyme Activation ; Evoked Potentials/drug effects ; GTP-Binding Proteins/*physiology ; Guanosine 5'-O-(3-Thiotriphosphate) ; Guanosine Triphosphate/analogs & derivatives/pharmacology ; Hippocampus/drug effects/*physiology ; Injections, Intraventricular ; Male ; Membrane Potentials ; Neurons/drug effects/physiology ; *Pertussis Toxin ; Protein Kinase C/metabolism ; Rats ; Rats, Inbred Strains ; Receptors, GABA-A/physiology ; Synapses/drug effects/*physiology ; Thionucleotides/pharmacology ; Virulence Factors, Bordetella/*pharmacology
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    NSF opens high-speed computer network (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-01-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1989 Jan 6;243(4887):22-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2911716" target="_blank"〉PubMed〈/a〉
    Keywords: *Computer Systems ; Government Agencies/*organization & administration ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    The Drug Czar: no "Walter Wallflower" (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-03-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1989 Mar 10;243(4896):1287.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2646714" target="_blank"〉PubMed〈/a〉
    Keywords: Government Agencies/*history ; History, 20th Century ; Humans ; *Street Drugs ; Substance-Related Disorders/*prevention & control ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Europe bans boeuf a l'estradiol (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-01-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1989 Jan 13;243(4888):161-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2911728" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cattle ; *Estradiol/adverse effects ; Europe ; *European Union ; Humans ; *Meat ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Street-wise crack research (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-12-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1989 Dec 15;246(4936):1376-81.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2595359" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/transmission ; *Behavior ; Brain/drug effects/physiopathology ; *Cocaine/pharmacology ; Disease Outbreaks ; Dopamine/physiology ; Drug and Narcotic Control ; Humans ; Legislation, Drug ; Reward ; *Substance-Related Disorders/drug therapy/epidemiology/physiopathology/prevention ; & control ; United States
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    The CF gene hits the news (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-09-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1989 Sep 1;245(4921):924.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2772645" target="_blank"〉PubMed〈/a〉
    Keywords: Cystic Fibrosis/*genetics ; *Genes ; Humans ; *Mass Media ; United States
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    Soviet sociology makes a comeback (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1989 Nov 24;246(4933):991-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2587995" target="_blank"〉PubMed〈/a〉
    Keywords: International Cooperation ; *Sociology ; Ussr ; United States
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    Entomologists wane as insects wax (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1989 Nov 10;246(4931):754-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2814497" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Entomology/*trends ; Insect Vectors/*physiology ; Insects/classification/*physiology ; Research Support as Topic ; United States
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    Bionet bites the dust (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-07-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1989 Jul 14;245(4914):126.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2749249" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; *Computer Communication Networks ; *Computer Systems ; *Information Systems ; *Molecular Biology ; National Institutes of Health (U.S.) ; United States
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    Do sperm spread the AIDS virus? (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-07-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1989 Jul 7;245(4913):30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2740912" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*transmission ; HIV/isolation & purification/pathogenicity/ultrastructure ; Humans ; Male ; Spermatozoa/*microbiology/ultrastructure
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    New type of receptor found (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1989 Jun 9;244(4909):1140-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2567057" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Atrial Natriuretic Factor/*physiology ; Cyclic AMP/physiology ; Cyclic GMP/physiology ; Female ; Guanylate Cyclase/metabolism ; Male ; Receptors, Atrial Natriuretic Factor ; Receptors, Cell Surface/*physiology ; Sea Urchins ; Second Messenger Systems ; Sperm-Ovum Interactions
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    Ethics in science. NIH grapples with conflict of interest (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-07-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palca, J -- New York, N.Y. -- Science. 1989 Jul 7;245(4913):23.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2740908" target="_blank"〉PubMed〈/a〉
    Keywords: *Biomedical Research ; *Ethics, Professional ; Federal Government ; Government Regulation ; *National Institutes of Health (U.S.) ; Research/*standards ; United States
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    Gene control research gets a boost (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-09-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1989 Sep 22;245(4924):1329-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2675310" target="_blank"〉PubMed〈/a〉
    Keywords: Cloning, Molecular ; DNA-Binding Proteins/*physiology ; *Gene Expression Regulation ; *Promoter Regions, Genetic ; Saccharomyces cerevisiae/genetics ; Transcription Factors/*physiology
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    Mutations in a protein kinase C homolog confer phorbol ester resistance on Caenorhabditis elegans (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-03-31
    Description: The tpa-1 gene mediates the action of tumor-promoting phorbol esters in the nematode Caenorhabditis elegans. A genomic fragment that constitutes a portion of the tpa-1 gene was cloned by Tc1 transposon tagging and was used as a probe to screen a nematode complementary DNA library. One of the isolated complementary DNA clones had a nucleotide sequence that predicts a polypeptide of 526 amino acids. The predicted amino acid sequence revealed that the predicted tpa-1 protein sequence is highly similar to protein kinase C molecules from various animals, including man.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tabuse, Y -- Nishiwaki, K -- Miwa, J -- New York, N.Y. -- Science. 1989 Mar 31;243(4899):1713-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Fundamental Research Laboratories, NEC Corporation, Kawasaki, Kanagawa, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2538925" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Caenorhabditis/*drug effects/genetics ; Cloning, Molecular ; Codon ; DNA/genetics ; DNA Restriction Enzymes ; Drug Resistance/genetics ; Genetic Markers ; Molecular Sequence Data ; Mutation ; Nucleic Acid Hybridization ; Phenotype ; Phorbol Esters/*pharmacology ; Protein Kinase C/*genetics ; Sequence Homology, Nucleic Acid
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    A protein that binds to a cis-acting element of wheat histone genes has a leucine zipper motif (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-09-01
    Description: The structure and function of transcription factors of higher plants was studied by isolating cDNA clones encoding a wheat sequence-specific DNA binding protein. A hexameric nucleotide motif, ACGTCA, is located upstream from the TATA box of several plant histone genes. It has been suggested that this motif is essential for efficient transcription of the wheat histone H3 gene. A wheat nuclear protein, HBP-1 (histone DNA binding protein-1), which specifically binds to the hexameric motif, has previously been identified as a putative transcription factor. A cDNA clone encoding HBP-1 has been isolated on the basis of specific binding of HBP-1 to the hexameric motif. The deduced amino acid sequence indicates that HBP-1 contains the leucine zipper motif, which represents a characteristic property of several eukaryotic transcription factors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tabata, T -- Takase, H -- Takayama, S -- Mikami, K -- Nakatsuka, A -- Kawata, T -- Nakayama, T -- Iwabuchi, M -- New York, N.Y. -- Science. 1989 Sep 1;245(4921):965-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Botany, Faculty of Science, Kyoto University, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2772648" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Cloning, Molecular ; DNA/genetics ; DNA-Binding Proteins/*genetics ; *Genes ; Genes, Regulator ; Histones/*genetics ; Information Systems ; *Leucine ; Methylation ; Molecular Sequence Data ; Nuclear Proteins/*genetics ; Nucleic Acid Hybridization ; Plants/*genetics ; *Transcription, Genetic ; Triticum/genetics
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    Germ-line transmission of a c-abl mutation produced by targeted gene disruption in ES cells (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-10
    Description: A substitution mutation has been introduced into the c-abl locus of murine embryonic stem cells by homologous recombination between exogenously added DNA and the endogenous gene, and these cells have been used to generate chimeric mice. It is shown that the c-abl mutation was transmitted to progeny by several male chimeras. This work demonstrates the feasibility of germ-line transmission of a mutation introduced into a nonselectable autosomal gene by homologous recombination.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schwartzberg, P L -- Goff, S P -- Robertson, E J -- P01 CA 23767/CA/NCI NIH HHS/ -- R01 HD 25208/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1989 Nov 10;246(4931):799-803.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biophysics, Columbia University, College of Physicians & Surgeons, New York, NY 10032.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2554496" target="_blank"〉PubMed〈/a〉
    Keywords: Abelson murine leukemia virus/*genetics ; Animals ; Blotting, Southern ; Cell Line ; Chimera ; Cloning, Molecular ; *DNA, Recombinant ; Female ; Leukemia Virus, Murine/*genetics ; Male ; Mice ; Mice, Inbred C57BL ; *Mutation ; Oncogenes/*physiology ; Retroviridae Proteins, Oncogenic/*genetics
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    Catalytic RNA wins chemistry Nobel (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-10-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Waldrop, M M -- New York, N.Y. -- Science. 1989 Oct 20;246(4928):325.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2678472" target="_blank"〉PubMed〈/a〉
    Keywords: History, 20th Century ; *Nobel Prize ; RNA Splicing/*physiology ; RNA, Catalytic ; RNA, Ribosomal/*physiology ; United States
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    Inescapable versus escapable shock modulates long-term potentiation in the rat hippocampus (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-04-14
    Description: A group of rats was trained to escape low-intensity shock in a shuttle-box test, while another group of yoked controls could not escape but was exposed to the same amount and regime of shock. After 1 week of training, long-term potentiation (LTP) was measured in vitro in hippocampal slices. Exposure to uncontrollable shock massively impaired LTP relative to exposure to the same amount and regime of controllable shock. These results provide evidence that controllability modulates plasticity at the cellular-neuronal level.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shors, T J -- Seib, T B -- Levine, S -- Thompson, R F -- HD02881/HD/NICHD NIH HHS/ -- MH11936/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1989 Apr 14;244(4901):224-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychology, University of Southern California, Los Angeles 90089.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2704997" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Avoidance Learning ; Corticosterone/blood ; *Electroshock ; *Escape Reaction ; Hippocampus/*physiology ; Learning/physiology ; Male ; Memory/physiology ; *Neuronal Plasticity ; Rats ; Stress, Psychological/physiopathology
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    The effect of deprenyl (selegiline) on the natural history of Parkinson's disease (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-08-04
    Description: The effects of MPTP (1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine), a neurotoxin that produces the symptoms of Parkinson's disease, can be fully prevented in experimental animals by inhibiting monoamine oxidase B. On the basis of this observation, a double-blind, placebo-controlled study in patients with early Parkinson's disease was initiated to determine whether deprenyl (a selective monoamine oxidase B inhibitor) would delay the need for L-dopa therapy by slowing the progression of the disease. Fifty-four patients were randomly assigned to deprenyl (10 mg/day) or placebo treatment groups and followed until L-dopa therapy was indicated or until the patient had been in the study for 3 years. Analysis of Kaplan-Meier survival curves for each group showed that deprenyl delayed the need for L-dopa therapy; the average time until L-dopa was needed was 312.1 days for patients in the placebo group and 548.9 days for patients in the deprenyl group. Disease progression, as monitored by five different assessment scales, was slowed (by 40 to 83% per year) in the deprenyl group compared to placebo. Therefore, early deprenyl therapy delays the requirement for antiparkinsonian medication, possibly by slowing progression of the disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tetrud, J W -- Langston, J W -- New York, N.Y. -- Science. 1989 Aug 4;245(4917):519-22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉California Parkinson's Foundation, San Jose 95128.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2502843" target="_blank"〉PubMed〈/a〉
    Keywords: 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine ; Aged ; Clinical Trials as Topic ; Double-Blind Method ; Female ; Humans ; Levodopa/therapeutic use ; Male ; Middle Aged ; Monoamine Oxidase Inhibitors/*therapeutic use ; Parkinson Disease/*drug therapy/physiopathology ; Parkinson Disease, Secondary/chemically induced ; Phenethylamines/*therapeutic use ; Pyridines/adverse effects/antagonists & inhibitors ; Random Allocation ; Selegiline/adverse effects/*therapeutic use
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    "Dangerous" liaisons in cell biology (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dickson, D -- New York, N.Y. -- Science. 1989 Jun 30;244(4912):1539-40.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2740899" target="_blank"〉PubMed〈/a〉
    Keywords: Absorption ; Animals ; *Dna ; Ethics ; Male ; Mice ; Mice, Transgenic ; *Patents as Topic ; Research Personnel ; Rome ; *Spermatozoa ; *Transfection
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 70
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    Europe says no to animal patents (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-07-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dickson, D -- New York, N.Y. -- Science. 1989 Jul 7;245(4913):25.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2740910" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Europe ; *Genetic Engineering ; Mice ; *Mice, Transgenic ; *Patents as Topic ; *Social Control, Formal ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 71
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    U.S. physicians probe deaths in Soviet Georgia (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Norman, C -- New York, N.Y. -- Science. 1989 Jun 9;244(4909):1133.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2524878" target="_blank"〉PubMed〈/a〉
    Keywords: *Death ; Georgia (Republic) ; Humans ; Physicians ; *Riots ; Social Control, Formal ; United States
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  • 72
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    NIH, CDC search committees formed (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Norman, C -- New York, N.Y. -- Science. 1989 Jun 9;244(4909):1135.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2543078" target="_blank"〉PubMed〈/a〉
    Keywords: Centers for Disease Control and Prevention (U.S.)/*organization & administration ; National Institutes of Health (U.S.)/*organization & administration ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 73
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    Koop resigns in a huff (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-05-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Norman, C -- New York, N.Y. -- Science. 1989 May 12;244(4905):649.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2655089" target="_blank"〉PubMed〈/a〉
    Keywords: Administrative Personnel ; History, 20th Century ; United States ; United States Public Health Service/*organization & administration
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 74
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    Science and the lame-duck budget (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-01-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Norman, C -- New York, N.Y. -- Science. 1989 Jan 13;243(4888):159-61.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2911727" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/economics ; Budgets ; Government Agencies ; Humans ; National Institutes of Health (U.S.) ; *Research Support as Topic ; United States
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  • 75
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    Duplication, deletion, and polymorphism in the sex-determining region of the mouse Y chromosome (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-01-06
    Description: The ZFY gene in the sex-determining region of the human Y chromosome encodes a "zinc-finger" protein that may be the testis-determining factor, TDF. Although the Y chromosomes of most placental mammals carry a single homolog of ZFY, the mouse Y chromosome has two homologs, both in the sex-determining (Sxr) region. Zfy-1 alone may suffice to determine maleness; Zfy-2 is dispensable, as it was deleted in an Sxr variant that retains sex-determining function but has lost other genes. Both loci mapped near the centromere of the mouse Y chromosome. The Y chromosomes of the subspecies Mus musculus musculus and M. m. domesticus were distinguishable by a Zfy-1 restriction fragment polymorphism, which can be used to study their differing interactions with autosomal sex-determining genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mardon, G -- Mosher, R -- Disteche, C M -- Nishioka, Y -- McLaren, A -- Page, D C -- New York, N.Y. -- Science. 1989 Jan 6;243(4887):78-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute, Nine Cambridge Center, MA 02142.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2563173" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Chromosome Deletion ; Chromosome Mapping ; Male ; Mice ; Mice, Inbred Strains/*genetics ; *Multigene Family ; *Polymorphism, Genetic ; Polymorphism, Restriction Fragment Length ; *Sex Determination Analysis ; *Y Chromosome
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 76
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    Metastatic hibernomas in transgenic mice expressing an alpha-amylase-SV40 T antigen hybrid gene (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-04-28
    Description: Mice transgenic for a hybrid gene containing the liver promoter of the mouse amylase gene (Amy-1a) fused to the SV40 tumor antigen coding region unexpected developed malignant brown adipose tissue tumors (malignant hibernomas). Expression of the alpha-amylase gene had previously been thought to be confined to the liver parotid, and pancreas; however, analysis of white and brown adipose tissue from nontransgenic mice revealed expression of the endogenous Amy-1a gene in these tissues. Gene constructs driven by the Amy-1a liver promoter thus provide a means of targeting gene expression to the adipocyte cell lineage in transgenic mice. Moreover the high frequency of metastases in the liver, lungs, spleen, heart, and adrenals of these mice provides an experimental system in which to study the development of disseminated malignancy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fox, N -- Crooke, R -- Hwang, L H -- Schibler, U -- Knowles, B B -- Solter, D -- CA-10815/CA/NCI NIH HHS/ -- CA-18470/CA/NCI NIH HHS/ -- CA-21124/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1989 Apr 28;244(4903):460-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wistar Institute, Philadelphia, PA 19104.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2785714" target="_blank"〉PubMed〈/a〉
    Keywords: Adipose Tissue/metabolism/pathology ; *Adipose Tissue, Brown/metabolism/pathology ; Animals ; Antigens, Polyomavirus Transforming/*genetics ; Cloning, Molecular ; Gene Expression Regulation ; Liver/metabolism ; Mice ; Mice, Transgenic ; Neoplasm Metastasis ; Neoplasms, Experimental/*genetics/pathology ; Nucleic Acid Hybridization ; Promoter Regions, Genetic ; RNA, Messenger/metabolism ; Tissue Distribution ; Transcription, Genetic ; alpha-Amylases/*genetics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    In vitro transcription enhancement by purified derivatives of the glucocorticoid receptor (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-07-21
    Description: Mammalian glucocorticoid receptors enhance transcription from linked promoters by binding to glucocorticoid response element (GRE) DNA sequences. Understanding the mechanism of receptor action will require biochemical studies with purified components. Enhancement was observed in vitro with derivatives of the receptor that were expressed in Escherichia coli, purified, and added to a cell-free extract from Drosophila embryo nuclei. Transcription from promoters linked to one or multiple GREs was selectively enhanced by as much as six times. The effect was weaker with only one GRE, and enhancement was abolished by a point mutation that inactivates the GRE in vivo.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Freedman, L P -- Yoshinaga, S K -- Vanderbilt, J N -- Yamamoto, K R -- New York, N.Y. -- Science. 1989 Jul 21;245(4915):298-301.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Biophysics, University of California, San Francisco 94143-0448.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2473529" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cloning, Molecular ; DNA/genetics/metabolism ; Drosophila melanogaster ; Mutation ; Promoter Regions, Genetic ; RNA/biosynthesis ; Rats ; Receptors, Glucocorticoid/*genetics/isolation & purification/metabolism ; Templates, Genetic ; *Transcription, Genetic
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    Old bones solve new problems (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-09-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1989 Sep 15;245(4923):1185.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2781278" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Bone and Bones/*analysis/anatomy & histology ; Female ; *Forensic Medicine ; *Fossils ; Humans ; Infant ; Male ; *Paleontology
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  • 79
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    Pathological changes induced in cerebrocortical neurons by phencyclidine and related drugs (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-16
    Description: Phencyclidine (PCP), a dissociative anesthetic and widely abused psychotomimetic drug, and MK-801, a potent PCP receptor ligand, have neuroprotective properties stemming from their ability to antagonize the excitotoxic actions of endogenous excitatory amino acids such as glutamate and aspartate. There is growing interest in the potential application of these compounds in the treatment of neurological disorders. However, there is an apparent neurotoxic effect of PCP and related agents (MK-801, tiletamine, and ketamine), which has heretofore been overlooked: these drugs induce acute pathomorphological changes in specific populations of brain neurons when administered subcutaneously to adult rats in relatively low doses. These findings raise new questions regarding the safety of these agents in the clinical management of neurodegenerative diseases and reinforce concerns about the potential risks associated with illicit use of PCP.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Olney, J W -- Labruyere, J -- Price, M T -- DA 53568/DA/NIDA NIH HHS/ -- MH 38894/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1989 Jun 16;244(4910):1360-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychiatry, Washington University School of Medicine, St. Louis, MO 63110.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2660263" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cerebral Cortex/cytology/*drug effects/pathology ; Dibenzocycloheptenes/*toxicity ; Dizocilpine Maleate ; Female ; Ketamine/toxicity ; Male ; Microscopy, Electron ; Neurons/drug effects ; Phencyclidine/*toxicity ; Rats ; Rats, Inbred Strains ; Tiletamine/toxicity ; Time Factors
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  • 80
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    Fund-raising and NIH (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-04-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Glazer, R I -- New York, N.Y. -- Science. 1989 Apr 14;244(4901):128.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2704993" target="_blank"〉PubMed〈/a〉
    Keywords: *Financial Management ; Foundations ; *Fund Raising ; *National Institutes of Health (U.S.) ; United States
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  • 81
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    Research on child and adolescent mental disorders (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hamburg, B A -- New York, N.Y. -- Science. 1989 Nov 10;246(4931):738.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2814491" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Child ; Child, Preschool ; Humans ; Infant ; *Mental Disorders ; *Research ; United States
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  • 82
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    O'Toole on O'Toole's charges (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉O'Toole, M -- New York, N.Y. -- Science. 1989 Nov 3;246(4930):563-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2814481" target="_blank"〉PubMed〈/a〉
    Keywords: National Institutes of Health (U.S.) ; *Publishing ; Research/*standards ; United States
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  • 83
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    Young's sudden move (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palca, J -- New York, N.Y. -- Science. 1989 Nov 17;246(4932):882.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2814511" target="_blank"〉PubMed〈/a〉
    Keywords: Humans ; Personnel Staffing and Scheduling ; United States ; *United States Dept. of Health and Human Services ; *United States Food and Drug Administration
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  • 84
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    Is the AIDS epidemic slowing? (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-12-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palca, J -- New York, N.Y. -- Science. 1989 Dec 22;246(4937):1560.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2556794" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*epidemiology/prevention & ; control/transmission ; Centers for Disease Control and Prevention (U.S.) ; Humans ; United States
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  • 85
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    Hard times at NIH (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palca, J -- New York, N.Y. -- Science. 1989 Nov 24;246(4933):988-90.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2587993" target="_blank"〉PubMed〈/a〉
    Keywords: Budgets ; *National Institutes of Health (U.S.) ; *Research Support as Topic ; United States
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  • 86
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    Fetal tissue transplants remain off limits (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palca, J -- New York, N.Y. -- Science. 1989 Nov 10;246(4931):752.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2814496" target="_blank"〉PubMed〈/a〉
    Keywords: *Aborted Fetus ; *Abortion, Induced ; Federal Government ; *Fetal Research ; *Fetus ; Government Regulation ; Humans ; *Research Support as Topic ; Transplantation/*legislation & jurisprudence ; United States
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  • 87
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    Room at the top (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palca, J -- New York, N.Y. -- Science. 1989 Nov 3;246(4930):566-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2814482" target="_blank"〉PubMed〈/a〉
    Keywords: Government Agencies/*organization & administration ; Politics ; *Science ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 88
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    Conflict over conflict of interest (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-09-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palca, J -- New York, N.Y. -- Science. 1989 Sep 29;245(4925):1440.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2551040" target="_blank"〉PubMed〈/a〉
    Keywords: Ethics ; Financing, Government/*legislation & jurisprudence ; *National Institutes of Health (U.S.) ; Research Support as Topic/*legislation & jurisprudence ; United States ; *United States Substance Abuse and Mental Health Services Administration
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 89
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    Genome projects are growing like weeds (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-07-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palca, J -- New York, N.Y. -- Science. 1989 Jul 14;245(4914):131.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2749252" target="_blank"〉PubMed〈/a〉
    Keywords: *Base Sequence ; *Chromosome Mapping ; *Chromosomes, Human ; Humans ; *National Institutes of Health (U.S.) ; Plants/*genetics ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 90
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    New round in Dingell v. NIH? (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-07-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palca, J -- New York, N.Y. -- Science. 1989 Jul 28;245(4916):349.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2783238" target="_blank"〉PubMed〈/a〉
    Keywords: *Crime ; *Fraud ; *National Institutes of Health (U.S.) ; Research/*standards ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 91
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    Court ruling rekindles controversy over SATs (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-02-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1989 Feb 17;243(4893):885-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2919279" target="_blank"〉PubMed〈/a〉
    Keywords: *Educational Measurement ; Female ; Humans ; *Jurisprudence ; Male ; *Prejudice ; *School Admission Criteria ; Sex Factors ; United States ; *Universities
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 92
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    Budget cuts at NIH (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-05-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Peak, M J -- New York, N.Y. -- Science. 1989 May 12;244(4905):631.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2717943" target="_blank"〉PubMed〈/a〉
    Keywords: Budgets/*legislation & jurisprudence ; Financial Management/*legislation & jurisprudence ; *National Institutes of Health (U.S.) ; Research Support as Topic ; United States
    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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  • 93
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    Factors that predict individual vulnerability to amphetamine self-administration (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-09-29
    Description: Clinical observations show that there is considerable individual variability in the response to the addictive properties of drugs. This individual variability needs to be taken into account in animal models of addiction. Like humans, only some rats readily self-administer low doses of psychostimulants. The individual animals at risk can be identified on the basis of their response to environmental or pharmacological challenges. This predisposition to develop self-administration can be induced by repeated treatment with amphetamine. These results may help elucidate the neurobiological basis of addiction liability observed in both rats and humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Piazza, P V -- Deminiere, J M -- Le Moal, M -- Simon, H -- New York, N.Y. -- Science. 1989 Sep 29;245(4925):1511-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉INSERM U.259, Universite de Bordeaux II, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2781295" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Dextroamphetamine/pharmacology ; Male ; Motor Activity/drug effects ; Rats ; Rats, Inbred Strains ; Risk Factors ; Self Administration ; Substance-Related Disorders/*etiology/psychology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 94
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    Inhibitors of angiotensin-converting enzyme prevent myointimal proliferation after vascular injury (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-07-14
    Description: The role of a local angiotensin system in the vascular response to arterial injury was investigated by administering the angiotensin-converting enzyme (CE) inhibitor cilazapril to normotensive rats in which the left carotid artery was subjected to endothelial denudation and injury by balloon catheterization. In control animals, by 14 days after balloon injury, the processes of smooth muscle cell (SMC) proliferation, migration of SMCs from the media to the intima, and synthesis of extracellular matrix produced marked thickening of the intima, with reduction of the cross-sectional area of the lumen. However, in animals that received continuous treatment with the CE inhibitor, neointima formation was decreased (by about 80 percent), and lumen integrity was preserved. Thus, the angiotensin-converting enzyme may participate in modulating the proliferative response of the vascular wall after arterial injury, and inhibition of this enzyme may have therapeutic applications to prevent the proliferative lesions that occur after coronary angioplasty and vascular surgery.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Powell, J S -- Clozel, J P -- Muller, R K -- Kuhn, H -- Hefti, F -- Hosang, M -- Baumgartner, H R -- New York, N.Y. -- Science. 1989 Jul 14;245(4914):186-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Pharmaceutical Research Department, F. Hoffmann-La Roche Ltd., Basel, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2526370" target="_blank"〉PubMed〈/a〉
    Keywords: Angiotensin-Converting Enzyme Inhibitors/*pharmacology ; Animals ; Blood Pressure/drug effects ; Catheterization ; Cell Division/drug effects ; Cilazapril ; Male ; Muscle, Smooth, Vascular/*drug effects/pathology ; Pyridazines/*pharmacology ; Rats
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 95
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    Fitness differences among remnant populations of the endangered sonoran topminnow (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-09-01
    Description: Four correlates of fitness were measured in three stocks of the endangered Sonoran topminnow, Poeciliopsis occidentalis, from Arizona. Survival, growth, early fecundity, and developmental stability were greatest in laboratory-reared fish from the most heterozygous natural population studied. Conversely, all four traits were poorest in fish from a population with no electrophoretically detectable genetic variation. These results emphasize the need for genetic as well as demographic information for the development of comprehensive species recovery programs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Quattro, J M -- Vrijenhoek, R C -- New York, N.Y. -- Science. 1989 Sep 1;245(4921):976-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Theoretical and Applied Genetics, Cook College, Rutgers University, New Brunswick, NJ 08903.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2772650" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arizona ; *Biological Evolution ; Cyprinodontiformes/*genetics ; Female ; Fertility ; Genetic Variation ; Male ; Poecilia/anatomy & histology/*genetics ; Species Specificity
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  • 96
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    Transfer of a protein encoded by a single nucleus to nearby nuclei in multinucleated myotubes (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-02
    Description: Specialized regions of muscle fibers may result from differential gene expression within a single fiber. In order to investigate the range of action of individual nuclei in multinucleated myotubes, C2 myoblasts were transfected to obtain stable cell lines that express a reporter protein that is targeted to the nucleus. Hybrid myotubes were then formed containing one or a few transfected nuclei as well as a large number of nuclei from the parental strain. In order to determine how far the products of a single nucleus extend, transfected nuclei were labeled with [3H]thymidine before fusion and the myotubes were stained to identify the reporter protein. In such myotubes the fusion protein was not confined to its nucleus of origin, but was restricted to nearby nuclei.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ralston, E -- Hall, Z W -- NS 20107/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1989 Jun 2;244(4908):1066-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, School of Medicine, University of California, San Francisco 94143-0444.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2543074" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Cell Nucleus/*metabolism ; Cloning, Molecular ; Cytoplasm/metabolism ; Enhancer Elements, Genetic ; Escherichia coli/genetics ; Fluorescent Antibody Technique ; Gene Expression Regulation ; Globins/genetics ; Mice ; Muscle Proteins/*genetics/metabolism ; Muscles/*ultrastructure ; Plasmids ; Promoter Regions, Genetic ; Receptors, Glucocorticoid/genetics ; Simian virus 40/genetics ; *Transfection ; beta-Galactosidase/genetics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 97
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    A genetic polymorphism in the renin gene of Dahl rats cosegregates with blood pressure (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-01-27
    Description: Blood pressure is influenced by multiple genetic loci whose identities are largely unknown. A restriction fragment length polymorphism (RFLP) in the renin gene was found between Dahl salt-hypertension-sensitive (S) and Dahl salt-hypertension-resistant (R) rats. In an F2 population derived from crossing S and R rats, the renin RFLP cosegregated with blood pressure. One dose of the S-rat renin allele was associated with an increment in blood pressure of approximately 10 mmHg, and two doses of this allele increased blood pressure approximately 20 mmHg. From this it can be definitively concluded that in the rat the renin gene is, or is closely linked to, one of the genes regulating blood pressure.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rapp, J P -- Wang, S M -- Dene, H -- HL-07357/HL/NHLBI NIH HHS/ -- HL-20176/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1989 Jan 27;243(4890):542-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Medical College of Ohio, Toledo 43699.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2563177" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; *Blood Pressure/drug effects ; Blotting, Southern ; DNA Probes ; Female ; Genotype ; Hypertension/*genetics ; Male ; *Polymorphism, Genetic ; Polymorphism, Restriction Fragment Length ; Rats ; Rats, Inbred Strains ; Renin/*genetics ; Sodium Chloride/pharmacology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 98
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    elk, tissue-specific ets-related genes on chromosomes X and 14 near translocation breakpoints (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-04-07
    Description: The myb-ets-containing acute leukemia virus, E26, transforms myeloblasts and erythroblasts in culture and causes a mixed erythroid and myeloid leukemia in chicks. Genes (ets-1, ets-2, and erg) with variable relatedness to the v-ets oncogene of the E26 virus have been identified, cloned, and characterized in several species. Two new members (elk-1 and elk-2) of the ets oncogene superfamily have now been identified. Nucleotide sequence analysis of the elk-1 cDNA clone revealed that this gene encodes a 428-residue protein whose predicted amino acid sequence showed 82% similarity to the 3' region of v-ets. The elk or related sequences appear to be transcriptionally active in testis and lung. The elk cDNA probe detects two loci in the human genome, elk-1 and elk-2, which map to chromosome regions Xp11.2 and 14q32.3, respectively. These loci are near the translocation breakpoint seen in the t(X;18) (p11.2;q11.2), which is characteristic of synovial sarcoma, and the chromosome 14q32 breakpoints seen in ataxia telangiectasia and other T cell malignancies. This suggests the possibility that rearrangements of elk loci may be involved in pathogenesis of certain tumors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rao, V N -- Huebner, K -- Isobe, M -- ar-Rushdi, A -- Croce, C M -- Reddy, E S -- CA-21124/CA/NCI NIH HHS/ -- CA-25875/CA/NCI NIH HHS/ -- CA-39860/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1989 Apr 7;244(4900):66-70.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wistar Institute of Anatomy and Biology, Philadelphia, PA 19104.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2539641" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Avian Leukosis Virus/*genetics ; Base Sequence ; Chick Embryo ; Chickens ; Chromosome Mapping ; Cloning, Molecular ; DNA Probes ; *DNA-Binding Proteins ; Humans ; Mice ; Molecular Sequence Data ; *Oncogenes ; *Proto-Oncogene Proteins ; Rats ; Retroviridae Proteins/*genetics/isolation & purification ; *Transcription Factors ; *Translocation, Genetic ; *X Chromosome ; ets-Domain Protein Elk-1
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 99
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    Amplification and molecular cloning of HTLV-I sequences from DNA of multiple sclerosis patients (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-01-27
    Description: Techniques of gene amplification, molecular cloning, and sequence analysis were used to test for the presence of sequences related to human T-lymphotropic virus type I (HTLV-I) in peripheral blood mononuclear cells of six patients with multiple sclerosis (MS) and 20 normal individuals. HTLV-I sequences were detected in all six MS patients and in one individual from the control group by DNA blot analysis and molecular cloning of amplified DNAs. The viral sequence in MS patients were associated with adherent cell populations consisting predominantly of monocytes and macrophages. Molecular cloning and nucleotide sequence analysis indicated that these amplified viral sequences were related to the HTLV-I proviral genome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Reddy, E P -- Sandberg-Wollheim, M -- Mettus, R V -- Ray, P E -- DeFreitas, E -- Koprowski, H -- CA-10815/CA/NCI NIH HHS/ -- NS-11036/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1989 Jan 27;243(4890):529-33.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wistar Institute of Anatomy and Biology, Philadelphia, PA 19104.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2536193" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Base Sequence ; Child ; *Cloning, Molecular ; DNA Restriction Enzymes ; DNA, Viral/*genetics ; Female ; *Gene Amplification ; Human T-lymphotropic virus 1/*genetics ; Humans ; Leukocytes, Mononuclear/analysis/microbiology ; Macrophages/analysis/microbiology ; Male ; Molecular Sequence Data ; Multiple Sclerosis/*microbiology ; Nucleic Acid Hybridization ; Oligonucleotide Probes
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 100
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    Navy marine mammals (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-02-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ridgway, S H -- New York, N.Y. -- Science. 1989 Feb 17;243(4893):875.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2919278" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Dolphins ; Humans ; *Military Science ; *Pinnipedia ; *Seals, Earless ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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