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  • 1
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    The skeletal muscle chloride channel in dominant and recessive human myotonia (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-08-07
    Description: Autosomal recessive generalized myotonia (Becker's disease) (GM) and autosomal dominant myotonia congenita (Thomsen's disease) (MC) are characterized by skeletal muscle stiffness that is a result of muscle membrane hyperexcitability. For both diseases, alterations in muscle chloride or sodium currents or both have been observed. A complementary DNA for a human skeletal muscle chloride channel (CLC-1) was cloned, physically localized on chromosome 7, and linked to the T cell receptor beta (TCRB) locus. Tight linkage of these two loci to GM and MC was found in German families. An unusual restriction site in the CLC-1 locus in two GM families identified a mutation associated with that disease, a phenylalanine-to-cysteine substitution in putative transmembrane domain D8. This suggests that different mutations in CLC-1 may cause dominant or recessive myotonia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koch, M C -- Steinmeyer, K -- Lorenz, C -- Ricker, K -- Wolf, F -- Otto, M -- Zoll, B -- Lehmann-Horn, F -- Grzeschik, K H -- Jentsch, T J -- New York, N.Y. -- Science. 1992 Aug 7;257(5071):797-800.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Center for Human Genetics, Marburg University, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1379744" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Blotting, Southern ; Chloride Channels ; *Chromosomes, Human, Pair 7 ; Cloning, Molecular ; DNA/genetics ; Female ; *Genes, Dominant ; *Genes, Recessive ; Genetic Linkage ; Humans ; Ion Channels/*genetics ; Lod Score ; Male ; Membrane Proteins/*genetics ; Molecular Sequence Data ; Muscular Dystrophies/*genetics ; Myotonia Congenita/*genetics ; Pedigree ; Polymorphism, Restriction Fragment Length ; Receptors, Antigen, T-Cell/genetics ; Recombination, Genetic ; Sequence Homology, Nucleic Acid
    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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    Prevalence of AIDS-related risk factors and condom use in the United States (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-11-13
    Description: A national probability survey of human immunodeficiency virus (HIV)-related risk factors among the general heterosexual population, the National AIDS (acquired immunodeficiency syndrome) Behavioral Surveys, has obtained data from 10,630 respondents. Data are presented on the prevalence of HIV-related risks in the general heterosexual population, on the distribution of the three largest risk groups across social strata, and on the prevalence and distribution of condom use among heterosexuals reporting a risk factor. Between 15 and 31 percent of heterosexuals nationally and 20 and 41 percent in cities with a high prevalence of AIDS reported an HIV risk factor. Condom use was relatively low. Only 17 percent of those with multiple sexual partners, 12.6 percent of those with risky sexual partners, and 10.8 percent of untested transfusion recipients used condoms all the time. Overall, the results suggest that current HIV prevention programs have, to a very limited extent, reached those heterosexuals with multiple sexual partners but have failed to reach many other groups of the heterosexual population at risk for HIV. New public health strategies may be needed for these specific risk groups.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Catania, J A -- Coates, T J -- Stall, R -- Turner, H -- Peterson, J -- Hearst, N -- Dolcini, M M -- Hudes, E -- Gagnon, J -- Wiley, J -- MH43892/MH/NIMH NIH HHS/ -- MH46240/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1992 Nov 13;258(5085):1101-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of California, San Francisco 94143.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1439818" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*epidemiology/prevention & control ; Adolescent ; Adult ; Age Factors ; Aged ; Blood Transfusion ; *Condoms ; Continental Population Groups ; Female ; HIV Seropositivity ; Health Surveys ; Hemophilia A/complications ; Humans ; Interviews as Topic ; Male ; Middle Aged ; Regression Analysis ; Risk Factors ; Sexual Behavior ; Sexual Partners ; Substance Abuse, Intravenous ; Time Factors ; 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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    The ability of certain SIV vaccines to provoke reactions against normal cells (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-01-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Langlois, A J -- Weinhold, K J -- Matthews, T J -- Greenberg, M L -- Bolognesi, D P -- New York, N.Y. -- Science. 1992 Jan 17;255(5042):292-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Surgery, Duke University Medical Center, Durham, NC 27710.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1549775" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*prevention & control ; Animals ; Cross Reactions ; Humans ; Immune Sera/immunology ; In Vitro Techniques ; Macaca ; Simian Immunodeficiency Virus/*immunology ; Vaccines, Inactivated/*immunology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 4
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    Identification of envelope V3 loop as the major determinant of CD4 neutralization sensitivity of HIV-1 (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-07-24
    Description: Laboratory isolates of human immunodeficiency virus type-1 (HIV-1) such as HTLV-IIIB are generally T cell line-tropic and highly sensitive to neutralization by soluble CD4 (sCD4), a potential antiviral agent that is undergoing clinical trial. However, many primary HIV-1 isolates are macrophage-tropic and sCD4-resistant. Envelope V3 loop sequences derived from primary HIV-1 isolates were sufficient to confer on HTLV-IIIB not only the tissue tropism but also the degree of sCD4 neutralization resistance characteristic of their HIV-1 strains of origin. Single amino acid changes in the V3 loop enhanced sCD4 resistance by up to tenfold. These observations suggest that the tissue tropism and sCD4 neutralization sensitivity of HIV-1 isolates are regulated by similar mechanisms.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hwang, S S -- Boyle, T J -- Lyerly, H K -- Cullen, B R -- AI28233/AI/NIAID NIH HHS/ -- AI28662/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1992 Jul 24;257(5069):535-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, Duke University Medical Center, Durham, NC 27710.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1636088" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antigens, CD4/*immunology ; Cell Line ; Cells, Cultured ; Gene Products, gag/*immunology ; HIV Envelope Protein gp120/*immunology ; HIV-1/*immunology/isolation & purification ; Humans ; Kinetics ; Molecular Sequence Data ; Neutralization Tests ; Proviruses/immunology ; T-Lymphocyte Subsets/*immunology ; Transfection ; Virion/immunology
    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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