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  • 1
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-05-22
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Abelson, P H -- New York, N.Y. -- Science. 1987 May 22;236(4804):893.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3576204" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Government Agencies ; *Research Support as Topic ; *Science ; United States
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 2
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-05-29
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1987 May 29;236(4805):1049-50.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3576216" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Humans ; Neoplasms/epidemiology/mortality/*prevention & control ; United States
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 3
    Publikationsdatum: 1987-11-13
    Beschreibung: The long-term effects of excitotoxic lesions in the nucleus basalis magnocellularis of the rat were found to mimic several neuropathological and chemical changes associated with Alzheimer's disease. Neuritic plaque-like structures, neurofibrillary changes, and neuronal atrophy or loss were observed in the frontoparietal cortex, hippocampus, amygdala, and entorhinal cortex 14 months after the lesions were made. Cholinergic markers in neocortex were reduced, while catecholamine and indoleamine metabolism was largely unaffected at this time. Bilateral lesions of the nucleus basalis magnocellularis increased somatostatin and neuropeptide Y in the cortex of the rat by at least 138 and 284 percent, respectively, suggesting a functional interaction between cholinergic and peptidergic neurons that may differ from that in Alzheimer's disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arendash, G W -- Millard, W J -- Dunn, A J -- Meyer, E M -- HD 17933/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1987 Nov 13;238(4829):952-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of South Florida, Tampa 33620.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2890210" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acetylcholinesterase/metabolism ; Animals ; Biogenic Amines/metabolism ; Brain/metabolism/*pathology ; Cerebral Cortex/metabolism/*pathology ; Choline/metabolism ; Choline O-Acetyltransferase/metabolism ; Male ; Neuropeptide Y/analysis ; Olivary Nucleus/*physiology ; Organ Specificity ; Rats ; Rats, Inbred Strains ; Somatostatin/analysis
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 4
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-08-21
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Booth, W -- New York, N.Y. -- Science. 1987 Aug 21;237(4817):844-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3616614" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): National Institutes of Health (U.S.)/economics/*legislation & jurisprudence ; Research Support as Topic ; United States
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 5
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-08-21
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Booth, W -- New York, N.Y. -- Science. 1987 Aug 21;237(4817):838.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3616609" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Acquired Immunodeficiency Syndrome ; Humans ; Research Support as Topic ; United States
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 6
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-08-21
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Booth, W -- New York, N.Y. -- Science. 1987 Aug 21;237(4817):846-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3616615" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Humans ; National Institutes of Health (U.S.) ; Research ; *Sports Medicine ; United States
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 7
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-07-24
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Booth, W -- New York, N.Y. -- Science. 1987 Jul 24;237(4813):355-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2885919" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acquired Immunodeficiency Syndrome/*transmission ; Animals ; *Culicidae ; DNA Replication ; Female ; HIV/genetics ; Humans ; Insect Bites and Stings ; Insect Vectors ; Male ; Virus Replication
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 8
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-11-20
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Booth, W -- New York, N.Y. -- Science. 1987 Nov 20;238(4830):1034.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3685965" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Acquired Immunodeficiency Syndrome ; Government Agencies ; Humans ; United States
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 9
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-10-16
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Booth, W -- New York, N.Y. -- Science. 1987 Oct 16;238(4825):262-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3659915" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acquired Immunodeficiency Syndrome/*prevention & control ; Administrative Personnel ; Government ; Health Policy ; Humans ; United States
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 10
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-12-04
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Booth, W -- New York, N.Y. -- Science. 1987 Dec 4;238(4832):1349.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3685983" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acquired Immunodeficiency Syndrome ; Maryland ; *National Institutes of Health (U.S.) ; United States ; Universities
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 11
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-10-09
    Beschreibung: In sharp contrast with the experiences of all other industrialized nations, the size of the labor force of the United States is growing rapidly while, simultaneously, its age, gender, and ethnic composition are changing markedly. Consequently, human resource issues present an unprecedented challenge in the nation's quest to achieve a fully employed and equitable society. New public policies that focus on labor market adjustment policies will be required if these developments are to be a boon rather than a bane to the emerging postindustrial economy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Briggs, V M Jr -- New York, N.Y. -- Science. 1987 Oct 9;238(4824):176-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉New York State School of Industrial and Labor Relations, Cornell University, Ithaca 14851.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3659908" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adult ; Age Factors ; Australia ; Canada ; Emigration and Immigration ; *Employment ; Europe ; Female ; Humans ; Japan ; Male ; *Population ; Unemployment ; United States
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 12
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-06-26
    Beschreibung: Thirty years have elapsed since Wald and his colleagues showed that 11-cis retinal was isomerized to all-trans when rhodopsin was bleached, yet little has been understood about the reverse process that generates 11-cis retinal for rhodopsin regeneration. It is not known whether the isomerization is enzyme-mediated, whether it occurs in the pigment epithelium or in the retina, or whether retinal, retinol, or a retinyl ester is the vitamin A compound that is isomerized. Radiolabeled all-trans retinol and high-performance liquid chromatography have now been used to demonstrate the existence of an eye-specific, membrane-bound enzyme (retinol isomerase) that converts all-trans to 11-cis retinol in the dark. Retinol isomerase is concentrated in the pigment epithelium; this localization clarifies the role of this tissue in rhodopsin regeneration and explains the need to transfer all-trans retinol from the rod outer segments to the pigment epithelium during the visual cycle.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bridges, C D -- Alvarez, R A -- New York, N.Y. -- Science. 1987 Jun 26;236(4809):1678-80.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3603006" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Anura ; Choroid/enzymology ; Chromatography, High Pressure Liquid ; Dark Adaptation ; Hot Temperature ; In Vitro Techniques ; Isomerases/antagonists & inhibitors/*metabolism ; Light ; Liver/enzymology ; Phenylmethylsulfonyl Fluoride/pharmacology ; Pigment Epithelium of Eye/*enzymology ; Rats ; Retina/enzymology ; Trypsin ; Vitamin A/*metabolism ; *cis-trans-Isomerases
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 13
    Publikationsdatum: 1987-02-27
    Beschreibung: Deletions of the long arm of chromosome 6 (6q-) are frequently found in hematopoietic neoplasms, including acute lymphoblastic leukemias, non-Hodgkin lymphomas and (less frequently) myeloid leukemias. The c-myb proto-oncogene has been mapped to region 6q21-24, which suggests that it could be involved in the 6q- aberrations. By means of in situ chromosomal hybridization on cells from six hematopoietic malignancies, it was demonstrated that the c-myb locus is not deleted, but is retained on band q22, which is consistently bordered by the chromosomal breakpoints in both interstitial and terminal 6q- deletions. The deletion breakpoints were located at some distance from the myb locus since no rearrangement of c-myb sequences was found. In one case, however, amplification of the entire c-myb locus was detectable. Furthermore, in all cases tested that carry 6q- deletions, myb messenger RNA levels were significantly higher than in normal cells or in malignant cells matched for lineage and stage of differentiation but lacking the 6q- marker. These results indicate that 6q- deletions are accompanied by structural and functional alterations of the c-myb locus and that these alterations may be involved in the pathogenesis of leukemias and lymphomas.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barletta, C -- Pelicci, P G -- Kenyon, L C -- Smith, S D -- Dalla-Favera, R -- CA16239/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1987 Feb 27;235(4792):1064-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3469751" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Chromosome Deletion ; *Chromosomes, Human, Pair 6 ; DNA/genetics ; Gene Amplification ; Humans ; Leukemia/*genetics ; Leukemia, Lymphoid/genetics ; Leukemia, Myeloid/genetics ; Lymphoma, Non-Hodgkin/*genetics ; Nucleic Acid Hybridization ; RNA, Messenger/genetics
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 14
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-07-10
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barnes, D M -- New York, N.Y. -- Science. 1987 Jul 10;237(4811):124.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3603013" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Acquired Immunodeficiency Syndrome ; *Government Agencies ; Humans ; United States
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 15
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-07-31
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barnes, D M -- New York, N.Y. -- Science. 1987 Jul 31;237(4814):481.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3603033" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Acquired Immunodeficiency Syndrome ; *Health Policy ; Humans ; United States
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 16
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-08-21
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barnes, D M -- New York, N.Y. -- Science. 1987 Aug 21;237(4817):848-50.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2441472" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Biological Assay ; Humans ; Interferons/therapeutic use ; Interleukin-2/therapeutic use ; National Institutes of Health (U.S.) ; Neoplasms/*therapy ; United States
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 17
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-09-11
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barnes, D M -- New York, N.Y. -- Science. 1987 Sep 11;237(4820):1287-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3306920" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acquired Immunodeficiency Syndrome/*drug therapy ; Antiviral Agents/*therapeutic use ; Clinical Trials as Topic ; Humans ; National Institutes of Health (U.S.) ; Research Support as Topic ; United States
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 18
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-07-10
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barnes, D M -- New York, N.Y. -- Science. 1987 Jul 10;237(4811):128-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3037699" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acquired Immunodeficiency Syndrome/*drug therapy ; Amino Acid Sequence ; Antigens, Differentiation, T-Lymphocyte ; Antigens, Surface/metabolism ; Antiviral Agents/pharmacology/*therapeutic use ; Brain/metabolism ; Depression, Chemical ; Drug Evaluation ; HIV/drug effects/physiology ; HIV Envelope Protein gp120 ; Humans ; Male ; Oligopeptides/pharmacology/*therapeutic use ; Peptide T ; Protein Binding/drug effects ; Receptors, Virus/drug effects ; Retroviridae Proteins/metabolism ; Virus Replication/drug effects
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 19
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-03-06
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barnes, D M -- New York, N.Y. -- Science. 1987 Mar 6;235(4793):1136.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3823874" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acquired Immunodeficiency Syndrome/prevention & control/*therapy ; Humans ; *Legislation, Medical ; United States
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 20
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-05-15
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barnes, D M -- New York, N.Y. -- Science. 1987 May 15;236(4803):771-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3576193" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Acquired Immunodeficiency Syndrome/diagnosis ; *Government Agencies ; Health Policy ; Humans ; Mass Screening ; United States
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 21
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-04-03
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barnes, D M -- New York, N.Y. -- Science. 1987 Apr 3;236(4797):17.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3645780" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acquired Immunodeficiency Syndrome/*diagnosis ; Antibodies, Viral/analysis ; France ; HIV/immunology ; Humans ; *Patents as Topic ; United States
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 22
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-04-17
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barnes, D M -- New York, N.Y. -- Science. 1987 Apr 17;236(4799):255-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3551072" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acquired Immunodeficiency Syndrome/immunology/*prevention & control ; Animals ; Clinical Trials as Topic ; Drug Evaluation, Preclinical ; HIV/immunology ; Humans ; Pan troglodytes ; United States ; United States Food and Drug Administration ; Viral Vaccines/*therapeutic use
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 23
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-11-20
    Beschreibung: Cleavage of the peptide bonds of preprosomatostatin at basic residues near the carboxyl terminus yields somatostatin-14, somatostatin-28, and somatostatin-28 (1-12). However, little is known about the molecular forms derived from the amino terminal portion of the precursor, even though this part of the prohormone is highly conserved through evolution. By using an antibody against the amino terminus of prosomatostatin, a decapeptide with the structure Ala-Pro-Ser-Asp-Pro-Arg-Leu-Arg-Gln-Phe, corresponding to preprosomatostatin (25-34), was isolated from the endocrine portion of the rat stomach, the gastric antrum. The antral decapeptide may represent a bioactive product generated from prosomatostatin after a monobasic cleavage similar to that involved in the formation of somatostatin-28. In fact, a monobasic cleavage requires two basic residues and a domain containing nonpolar amino acids such as alanine or leucine, or both.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Benoit, R -- Ling, N -- Esch, F -- AM I88II/AM/NIADDK NIH HHS/ -- HD 09690/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1987 Nov 20;238(4830):1126-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Montreal General Hospital Research Institute, Department of Medicine, McGill University, Quebec, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2891188" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Animals ; Hydrolysis ; Immunologic Techniques ; Peptide Fragments/physiology ; Protein Precursors/immunology/*physiology ; Protein Processing, Post-Translational ; Rats ; Somatostatin/immunology/*physiology ; Stomach/*physiology ; Structure-Activity Relationship
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 24
    Publikationsdatum: 1987-10-23
    Beschreibung: Intraperitoneal administration of human recombinant interleukin-1 (IL-1) to rats can increase blood levels of corticosterone and adrenocorticotropic hormone (ACTH). The route by which IL-1 affects pituitary-adrenal activity is unknown. That the IL-1-induced pituitary-adrenal activation involves an increased secretion of corticotropin-releasing factor (CRF) is indicated by three lines of evidence. First, immunoneutralization of CRF markedly attenuated the IL-1-induced increase of ACTH blood levels. Second, after blockade of fast axonal transport in hypothalamic neurons by colchicine, IL-1 administration decreased the CRF immunostaining in the median eminence, indicating an enhanced release of CRF in response to IL-1. Third, IL-1 did not stimulate ACTH release from primary cultures of anterior pituitary cells. These data further support the notion of the existence of an immunoregulatory feedback circuit between the immune system and the brain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Berkenbosch, F -- van Oers, J -- del Rey, A -- Tilders, F -- Besedovsky, H -- New York, N.Y. -- Science. 1987 Oct 23;238(4826):524-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, Medical Faculty, Free University, Amsterdam, the Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2443979" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adrenal Glands/physiology ; Adrenocorticotropic Hormone/secretion ; Animals ; Axonal Transport/drug effects ; Colchicine/pharmacology ; Corticotropin-Releasing Hormone/immunology/*physiology ; Fluorescent Antibody Technique ; Hypothalamus/*metabolism ; Immune Sera/pharmacology ; Interleukin-1/*physiology ; Male ; Median Eminence/metabolism ; Neurons/*metabolism ; Pituitary Gland, Anterior/physiology ; Rats ; Rats, Inbred Strains
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 25
    Publikationsdatum: 1987-10-23
    Beschreibung: Exposure to bacterial endotoxins has long been known to stimulate the release of anterior pituitary hormones; administration of endotoxin was at one time a common clinical test of anterior pituitary function. Endotoxin is a potent stimulus for production of the endogenous pyrogenic protein, interleukin-1 (IL-1), by macrophages and monocytes. The possibility that IL-1 has a direct effect on the secretion of hormones by rat pituitary cells in a monolayer culture was investigated. Recombinant human IL-1 beta stimulated the secretion of adrenocorticotropic hormone, luteinizing hormone, growth hormone, and thyroid-stimulating hormone. Increased hormone secretion into culture supernatants was found with IL-1 concentrations ranging from 10(-9) M to 10(-12) M. Prolactin secretion by the monolayers was inhibited by similar doses. These concentrations of IL-1 are within the range reported for IL-1 in serum, suggesting that IL-1 generated peripherally by mononuclear immune cells may act directly on anterior pituitary cells to modulate hormone secretion in vivo. Incubation of IL-1 solutions with antibody to IL-1 neutralized these actions. These pituitary effects of IL-1 suggest that this monokine may be an important regulator of the metabolic adaptations to infectious stressors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bernton, E W -- Beach, J E -- Holaday, J W -- Smallridge, R C -- Fein, H G -- New York, N.Y. -- Science. 1987 Oct 23;238(4826):519-21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Neuropsychiatry, Walter Reed Army Institute of Research, Washington, D.C. 20307-5100.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2821620" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adrenocorticotropic Hormone/secretion ; Animals ; Cells, Cultured ; Dinoprostone ; Female ; Growth Hormone/secretion ; Humans ; Infection/physiopathology ; Inflammation/physiopathology ; Interleukin-1/*physiology ; Luteinizing Hormone/secretion ; Pituitary Gland, Anterior/*secretion ; Pituitary Hormones, Anterior/*secretion ; Prolactin/secretion ; Prostaglandins E/secretion ; Rats ; Rats, Inbred Strains ; Recombinant Proteins/pharmacology ; Thyrotropin/secretion
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 26
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-11-13
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Basgall, M -- New York, N.Y. -- Science. 1987 Nov 13;238(4829):882-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3672131" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Cardiovascular System ; Government Agencies ; Humans ; National Institutes of Health (U.S.) ; North Carolina ; *Research Support as Topic ; United States ; *Universities
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 27
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-03-20
    Beschreibung: Elevation of glucose transport is an alteration common to most virally induced tumors. Rat fibroblasts transformed with wild-type or a temperature-sensitive Fujinami sarcoma virus (FSV) were studied in order to determine the mechanisms underlying the increased transport. Five- to tenfold increases in total cellular glucose transporter protein in response to transformation were accompanied by similar increases in transporter messenger RNA levels. This, in turn, was preceded by an absolute increase in the rate of glucose transporter gene transcription within 30 minutes after shift of the temperature-sensitive FSV-transformed cells to the permissive temperature. The transporter messenger RNA levels in transformed fibroblasts were higher than those found in proliferating cells maintained at the nonpermissive temperature. The activation of transporter gene transcription by transformation represents one of the earliest known effects of oncogenesis on the expression of a gene encoding a protein of well-defined function.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Birnbaum, M J -- Haspel, H C -- Rosen, O M -- AM35430-01/AM/NIADDK NIH HHS/ -- DK 35158/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1987 Mar 20;235(4795):1495-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3029870" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Avian Sarcoma Viruses ; Cell Division ; Cell Line ; *Cell Transformation, Viral ; Fibroblasts ; Gene Expression Regulation ; Kinetics ; Monosaccharide Transport Proteins/*genetics ; RNA, Messenger/genetics ; Rats ; Transcription, Genetic
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 28
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    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-11-06
    Beschreibung: The c-erbA gene belongs to a multigene family that encodes transcriptional regulatory proteins including the v-erbA oncogene product, steroid hormone receptors, and the vitamin D3 receptor. A v-erbA DNA probe encoding the DNA-binding region of the v-erbA protein was used to screen a human complementary DNA testis library. One of the clones isolated, erbA-T-1, was found to encode a 490-amino acid protein (erbA-T). The erbA-T polypeptide shows high homology with the proteins encoded by both the chicken c-erbA and the human c-erbA-beta genes but is most closely related to the chicken gene. The chicken c-erbA and the human c-erbA-beta genes encode high-affinity receptors for thyroid hormone, and here it is shown that the erbA-T protein binds specifically to 3,5,3'-triiodo-L-thyronine with a dissociation constant of 3.8 +/- 0.2 x 10(-10) M. These data imply that more than one thyroid hormone receptor exists in humans and that these receptors might have different tissue- and gene-activating specificities.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Benbrook, D -- Pfahl, M -- DK-35083/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1987 Nov 6;238(4828):788-91.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cancer Research Center, La Jolla Cancer Research Foundation, CA 92037.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3672126" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; *Cloning, Molecular ; DNA/*metabolism ; *Genes ; Humans ; Kinetics ; Male ; Protein Biosynthesis ; *Proto-Oncogenes ; Receptors, Thyroid Hormone/*genetics/metabolism ; Testis/*metabolism ; Transcription, Genetic
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 29
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-03-06
    Beschreibung: Ribonuclease mitochondrial RNA processing, a site-specific endoribonuclease involved in primer RNA metabolism in mammalian mitochondria, requires an RNA component for its activity. On the basis of copurification and selective inactivation with complementary oligonucleotides, a 135-nucleotide RNA species, not encoded in the mitochondrial genome, is identified as the RNA moiety of the endoribonuclease. This finding implies transport of a nucleus-encoded RNA, essential for organelle DNA replication, to the mitochondrial matrix.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chang, D D -- Clayton, D A -- GM-33088-16/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1987 Mar 6;235(4793):1178-84.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2434997" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Base Sequence ; Cell Nucleus/*physiology ; Chemical Phenomena ; Chemistry ; Drug Resistance ; Endonucleases/isolation & purification/metabolism ; Enzyme Activation/drug effects ; *Genetic Code ; Humans ; Mammals/*genetics/metabolism ; Micrococcal Nuclease/pharmacology ; Mitochondria/*metabolism ; Oligonucleotides/pharmacology ; Organoids/physiology ; RNA/*biosynthesis/genetics/isolation & purification/physiology ; Ribonucleases/metabolism ; Subcellular Fractions/metabolism
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 30
    Publikationsdatum: 1987-08-28
    Beschreibung: Li-Fraumeni syndrome is manifested in a variety of neoplasms that are transmitted in a dominantly inherited pattern. The noncancerous skin fibroblasts of family members exhibit a unique characteristic of being resistant to the killing effect of ionizing radiation. A three- to eightfold elevation in expression of c-myc and an apparent activation of c-raf-1 gene have been observed in these noncancerous skin fibroblasts. These results may provide insight into the heritable defect underlying the familial predisposition to a variety of cancers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chang, E H -- Pirollo, K F -- Zou, Z Q -- Cheung, H Y -- Lawler, E L -- Garner, R -- White, E -- Bernstein, W B -- Fraumeni, J W Jr -- Blattner, W A -- CA45158/CA/NCI NIH HHS/ -- CO7488/CO/NCI NIH HHS/ -- New York, N.Y. -- Science. 1987 Aug 28;237(4818):1036-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3616624" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cell Transformation, Neoplastic/radiation effects ; Cells, Cultured ; Fibroblasts/*radiation effects ; Humans ; Mice ; Mice, Nude ; Neoplastic Syndromes, Hereditary/*genetics ; Oncogenes/*radiation effects ; Pedigree ; *Radiation Tolerance ; Skin/cytology/*radiation effects ; Syndrome
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 31
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-10-09
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Crawford, M -- New York, N.Y. -- Science. 1987 Oct 9;238(4824):151.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3659905" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Government Agencies ; Politics ; *Research Support as Topic ; United States
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 32
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-04-24
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Culliton, B J -- New York, N.Y. -- Science. 1987 Apr 24;236(4800):380-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3563515" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Government Agencies ; Humans ; Neoplasms/*therapy ; Prognosis ; Statistics as Topic ; United States
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 33
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-08-21
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Culliton, B J -- New York, N.Y. -- Science. 1987 Aug 21;237(4817):843.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3303328" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): History, 20th Century ; Humans ; National Institutes of Health (U.S.)/history ; Neoplasms/*prevention & control ; Research Support as Topic/history ; United States
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 34
    Publikationsdatum: 1987-10-30
    Beschreibung: The major late transcription factor (MLTF) is a 46-kilodalton polypeptide that specifically binds to and activates transcription from the major late promoter of adenovirus. The presence of this promoter-specific transcription factor in uninfected HeLa cell extracts suggests that MLTF is also involved in the transcription of cellular genes. This report demonstrates that MLTF specifically stimulates transcription of the rat gamma-fibrinogen gene through a high-affinity binding site. Stimulation of transcription by MLTF was not dependent on the exact position of the MLTF binding site with respect either to the transcription initiation site or to adjacent promoter elements. These results suggest that one of the cellular functions of MLTF is to control gamma-fibrinogen gene expression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chodosh, L A -- Carthew, R W -- Morgan, J G -- Crabtree, G R -- Sharp, P A -- P01-CA42063/CA/NCI NIH HHS/ -- P30-CA14051/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1987 Oct 30;238(4827):684-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Massachusetts Institute of Technology, Cambridge 02139.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3672119" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adenoviruses, Human/*genetics ; Animals ; DNA-Binding Proteins/*genetics ; Fibrinogen/*genetics ; *Gene Expression Regulation ; *Promoter Regions, Genetic ; RNA Polymerase II/metabolism ; Rats ; Regulatory Sequences, Nucleic Acid ; Transcription Factors/*genetics ; Transcription, Genetic ; Viral Proteins/genetics
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 35
    Publikationsdatum: 1987-07-10
    Beschreibung: A wide variety of human tumors contain an amplified or overexpressed erbB-2 gene, which encodes a growth factor receptor-like protein. When erbB-2 complementary DNA was expressed in NIH/3T3 cells under the control of the SV40 promoter, the gene lacked transforming activity despite expression of detectable levels of the erbB-2 protein. A further five- to tenfold increase in its expression under influence of the long terminal repeat of Moloney murine leukemia virus was associated with activation of erbB-2 as a potent oncogene. The high levels of the erbB-2 product associated with malignant transformation of NIH/3T3 cells were observed in human mammary tumor cells that overexpressed this gene. These findings demonstrate a new mechanism for acquisition of oncogenic properties by genes encoding growth factor receptor-like proteins and provide a functional basis for the role of their overexpression in the development of human malignancies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Di Fiore, P P -- Pierce, J H -- Kraus, M H -- Segatto, O -- King, C R -- Aaronson, S A -- New York, N.Y. -- Science. 1987 Jul 10;237(4811):178-82.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2885917" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Breast Neoplasms/genetics ; Cell Line ; *Cell Transformation, Neoplastic/genetics ; DNA/genetics ; Fibroblasts/*metabolism ; Gene Expression Regulation ; Genes, Viral ; Humans ; Mice ; Moloney murine leukemia virus/genetics ; Promoter Regions, Genetic ; Proto-Oncogene Proteins/biosynthesis/genetics/*physiology ; Rats ; Receptor, Epidermal Growth Factor ; Receptor, ErbB-2 ; Receptors, Cell Surface/genetics ; Recombinant Fusion Proteins/biosynthesis/genetics/physiology ; Simian virus 40/genetics ; Tumor Stem Cell Assay
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 36
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-12-04
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dunn, A J -- Powell, M L -- Gaskin, J M -- MH25486/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1987 Dec 4;238(4832):1423-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroscience, College of Medicine, University of Florida, Gainesville 32610.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3685987" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Corticosterone/*blood ; Female ; Hypophysectomy ; Lymphocytes/physiology ; Male ; Mice ; Mice, Inbred Strains ; Models, Biological ; Newcastle Disease/*blood ; Pituitary-Adrenal System/*physiopathology ; Postoperative Complications/blood ; Stress, Physiological/blood
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 37
    Publikationsdatum: 1987-10-09
    Beschreibung: Oncogenes encoding serine/threonine or tyrosine kinases were introduced into the established rodent fibroblast cell line NIH 3T3 and tested for tumorigenic and metastatic behavior in T cell-deficient nude mice. Transforming oncogenes of the ras family were capable of converting fibroblast cell lines to fully metastatic tumors. Cell lines transformed by the kinase oncogenes mos, raf, src, fes, and fms formed experimental metastases and (in some cases) these genes were more efficient at metastatic conversion than a mutant ras gene. In contrast, cells transformed by either of two nuclear oncogenes, myc or p53, were tumorigenic when injected subcutaneously but were virtually nonmetastatic after intravenous injection. These data demonstrate that, in addition to ras, a structurally divergent group of kinase oncogenes can induce the metastatic phenotype.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Egan, S E -- Wright, J A -- Jarolim, L -- Yanagihara, K -- Bassin, R H -- Greenberg, A H -- New York, N.Y. -- Science. 1987 Oct 9;238(4824):202-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Manitoba Institute of Cell Biology, University of Manitoba, Winnipeg, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3659911" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Cell Transformation, Neoplastic ; Cells, Cultured ; *Genes ; Mice ; *Neoplasm Metastasis ; *Oncogenes ; Phenotype ; Protein Kinases/*genetics
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 38
    facet.materialart.
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-12-11
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Crawford, M -- New York, N.Y. -- Science. 1987 Dec 11;238(4833):1504-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3685991" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Biotechnology ; *Government Agencies ; National Institutes of Health (U.S.) ; United States
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 39
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-04-17
    Beschreibung: Many mutations leading to human disease are the result of single DNA base pair changes that cannot be identified by Southern analysis. This has prompted the development of alternative assays for point mutation detection. The recently described ribonuclease A cleavage procedure, with a polyuridylic acid-paper affinity chromatography step, has been used to identify the mutational lesions in the hypoxanthine phosphoribosyltransferase (HPRT) messenger RNAs of patients with Lesch-Nyhan syndrome. Distinctive ribonuclease A cleavage patterns were identified in messenger RNA from 5 of 14 Lesch-Nyhan patients who were chosen because no HPRT Southern or Northern blotting pattern changes had been found. This approach now allows HPRT mutation detection in 50 percent of the cases of Lesch-Nyhan syndrome. The polyuridylic acid-paper affinity procedure provides a general method for analysis of low abundance messenger RNAs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gibbs, R A -- Caskey, C T -- New York, N.Y. -- Science. 1987 Apr 17;236(4799):303-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3563511" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Cell Line ; Chromosome Deletion ; HeLa Cells/enzymology ; Humans ; Hypoxanthine Phosphoribosyltransferase/*genetics ; Lesch-Nyhan Syndrome/*genetics ; *Mutation ; Nucleic Acid Hybridization ; RNA, Messenger/genetics ; Ribonuclease, Pancreatic
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 40
    Publikationsdatum: 1987-02-20
    Beschreibung: Four clones were isolated from an adult human brain complementary DNA library with an oligonucleotide probe corresponding to the first 20 amino acids of the beta peptide of brain amyloid from Alzheimer's disease. The open reading frame of the sequenced clone coded for 97 amino acids, including the known amino acid sequence of this polypeptide. The 3.5-kilobase messenger RNA was detected in mammalian brains and human thymus. The gene is highly conserved in evolution and has been mapped to human chromosome 21.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goldgaber, D -- Lerman, M I -- McBride, O W -- Saffiotti, U -- Gajdusek, D C -- New York, N.Y. -- Science. 1987 Feb 20;235(4791):877-80.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3810169" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Alzheimer Disease/*genetics ; Amino Acid Sequence ; Amyloid/*genetics ; *Chromosomes, Human, Pair 21 ; Cloning, Molecular ; DNA/genetics ; Humans ; Protein Conformation ; RNA, Messenger/genetics ; Solubility ; Transcription, Genetic
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 41
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-03-27
    Beschreibung: The earliest known response of eggs to sperm in many species is a change in egg membrane potential. However, for no species is it known what components of the sperm cause the opening of the egg plasma membrane channels. Protein isolated from sperm acrosomal granules of the marine worm Urechis caused electrical responses in oocytes with the same form, amplitude, and ion dependence as the fertilization potentials induced by living sperm. Sperm initiated fertilization potentials in oocytes when sperm-oocyte fusion, but not binding, was inhibited by clamping oocyte membrane potentials to positive values. Acrosomal protein also initiated electrical responses in clamped oocytes. These results support the hypothesis that it is the sperm acrosomal protein that opens ion channels in the oocyte membrane.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gould, M -- Stephano, J L -- New York, N.Y. -- Science. 1987 Mar 27;235(4796):1654-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3823908" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acrosome/*physiology ; Action Potentials ; Animals ; Annelida ; Calcium/metabolism ; Carrier Proteins/isolation & purification/*pharmacology ; Electric Stimulation ; Electrophysiology ; Female ; Fertilization ; Male ; Sodium/metabolism ; *Sperm-Ovum Interactions ; Spermatozoa/*physiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 42
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    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-10-23
    Beschreibung: X-ray holography offers the possibility of three-dimensional microscopy with resolution higher than that of the light microscope and with contrast based on x-ray edges. In principle, the method is especially advantageous for biological samples if x-rays in the wavelength region between the carbon and oxygen K edges are used. However, until now the achieved resolution has not exceeded that of the light microscope because of the poor coherence properties of the x-ray sources and the low resolution of the detectors that were available. With a recently developed x-ray source based on an undulator on an electron storage ring, and high resolution x-ray resist, a hologram has been recorded at about 400-angstrom resolution. The experiment utilized x-rays with wavelengths of 24.7 angstroms and required a 1-hour exposure of the pancreatic zymogen granules under study.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Howells, M -- Jacobsen, C -- Kirz, J -- Feder, R -- McQuaid, K -- Rothman, S -- New York, N.Y. -- Science. 1987 Oct 23;238(4826):514-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for X-ray Optics, Lawrence Berkeley Laboratory, University of California, Berkeley 94720.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3659925" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cytoplasmic Granules/enzymology/*ultrastructure ; *Enzyme Precursors ; Holography/*methods ; Microscopy, Electron ; Pancreas/ultrastructure ; Rats ; X-Rays
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  • 43
    Publikationsdatum: 1987-07-17
    Beschreibung: The calcium-calmodulin-dependent protein kinase II is a major component of brain synaptic junctions and has been proposed to play a variety of important roles in brain function. A complementary DNA representing a portion of the smaller 50-kilodalton subunit of the rat brain enzyme has been cloned and sequenced. The calmodulin-binding region has been identified and a synthetic analog prepared that binds calmodulin with high affinity in the presence of calcium. Like the 50-kilodalton kinase polypeptide, the concentration of the messenger RNA varies both neuroanatomically and during postnatal development of the brain. The broad tissue and species cross-reactivity of the complementary DNA suggests that the 50-kilodalton subunit found in rat brain is evolutionarily conserved and is the product of a single gene.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hanley, R M -- Means, A R -- Ono, T -- Kemp, B E -- Burgin, K E -- Waxham, N -- Kelly, P T -- New York, N.Y. -- Science. 1987 Jul 17;237(4812):293-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3037704" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Age Factors ; Amino Acid Sequence ; Animals ; Base Sequence ; Biological Assay ; Brain/enzymology/growth & development ; Calcium-Calmodulin-Dependent Protein Kinases ; Cloning, Molecular ; DNA/genetics ; Protein Kinases/*genetics ; RNA, Messenger/genetics ; Rats ; Species Specificity
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 44
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-12-18
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1987 Dec 18;238(4834):1648.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2825354" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): National Institute of Mental Health (U.S.)/*organization & administration ; United States ; United States Substance Abuse and Mental Health Services ; Administration/*organization & administration
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 45
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-11-06
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1987 Nov 6;238(4828):744-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3672121" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): American Medical Association ; *Employment ; *Government Agencies ; Humans ; Periodicals as Topic ; Physicians ; Substance-Related Disorders/*diagnosis ; United States
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 46
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-10-09
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1987 Oct 9;238(4824):158-60.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3659906" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Female ; Humans ; *Life Expectancy ; Male ; Sex Factors ; Sex Ratio
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 47
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-09-25
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1987 Sep 25;237(4822):1563.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3629255" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Crime ; *Fraud ; National Institutes of Health (U.S.) ; Research Support as Topic ; United States
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 48
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-11-13
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1987 Nov 13;238(4829):880-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3672130" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animal Care Committees ; *Animal Experimentation ; *Animal Welfare ; Animals ; Animals, Laboratory ; Federal Government ; *Government Regulation ; National Institutes of Health (U.S.) ; Research/*standards ; United States
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 49
    Publikationsdatum: 1987-05-29
    Beschreibung: North American strains of Aedes albopictus, an Asian mosquito recently introduced into the Western Hemisphere, exhibit photoperiodic sensitivity and cold-hardiness characteristics similar to strains originating from temperate zone Asia. Trade statistics for used tire imports, the most likely mode of introduction, also indicate a north Asian origin. Aedes albopictus, an important vector of dengue and a potential vector of many other arboviral diseases, may therefore have the capability of infesting much of temperate North America.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hawley, W A -- Reiter, P -- Copeland, R S -- Pumpuni, C B -- Craig, G B Jr -- AI-07220/AI/NIAID NIH HHS/ -- AI-20753/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1987 May 29;236(4805):1114-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3576225" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Aedes/growth & development/physiology ; Cold Temperature ; Far East ; Insect Vectors/physiology ; Malaysia ; Ovum/physiology ; United States ; Virus Diseases/transmission
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 50
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-08-28
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hedrick, P W -- New York, N.Y. -- Science. 1987 Aug 28;237(4818):963.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3616627" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acinonyx/*genetics ; Animals ; Carnivora/*genetics ; Genetic Variation ; *Genetics, Population ; Houseflies/*genetics ; Male ; Mice/genetics ; Reproduction
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 51
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-12-11
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1987 Dec 11;238(4833):1501-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3685990" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Government Agencies ; Humans ; Learning ; *Military Personnel ; Research ; United States
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 52
    Publikationsdatum: 1987-05-15
    Beschreibung: A new human T-lymphotropic virus (HTLV-4) was recently described in healthy people from Senegal. This virus has many properties in common with members of the human T-lymphotropic viruses, particularly the human immunodeficiency virus or HIV, the etiologic agent of acquired immune deficiency syndrome (AIDS), but does not appear to be associated with immunodeficiency-related disorders. In the present study, serum samples were obtained from 4248 individuals from six West African countries, including Senegal, Guinea, Guinea Bissau, Mauritania, Burkina Faso, and Ivory Coast. These samples, collected during 1985-1987, were from people categorized as healthy control, sexually active risk, and disease populations. All samples were analyzed for reactivity to HTLV-4 and HIV by radioimmunoprecipitation-sodium dodecyl sulfate-polyacrylamide gel electrophoresis and immunoblotting. Evidence for HTLV-4 infection was found in five of the six countries. The seroprevalence varied markedly from country to country. Healthy sexually active individuals in the risk category had the highest levels of HTLV-4 infection compared to individuals in the healthy control category and the disease category, the latter including AIDS patients. The seroprevalence of HIV infection in most of these countries was quite low, although tightly associated with the rare cases of AIDS. The biology of HTLV-4 infection thus differs from that of HIV in Central Africa or the United States and Europe. The presence of these viruses and their different pathogenicities in several countries of West Africa indicate the necessity for serologic assays that will distinguish between them. Further studies of their origin and distribution as well as of their biology will be important in advancing our understanding of AIDS.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kanki, P J -- M'Boup, S -- Ricard, D -- Barin, F -- Denis, F -- Boye, C -- Sangare, L -- Travers, K -- Albaum, M -- Marlink, R -- CA 18216/CA/NCI NIH HHS/ -- CA 37466/CA/NCI NIH HHS/ -- FOD 630/OD/NIH HHS/ -- New York, N.Y. -- Science. 1987 May 15;236(4803):827-31.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3033826" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acquired Immunodeficiency Syndrome/epidemiology ; Adult ; Africa, Western ; Deltaretrovirus/*isolation & purification ; Demography ; Female ; HIV/*isolation & purification ; Humans ; Inpatients ; Male ; Pregnancy ; Prisoners ; Prostitution ; Reference Values ; Risk
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 53
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-07-03
    Beschreibung: The cerebellar cortex is perhaps the best characterized structure in the mammalian central nervous system. Although the major cerebellar cell classes are well known, a new class of cerebellar cortical neuron has now been identified with a monoclonal antibody (Mab) generated by a procedure for rapid immunization and selective immunosuppression of antibody responses. This procedure generates a high frequency of immunoglobulin G-class antibodies of desired specificity, and has allowed the generation of two antibodies that recognize subsets of cerebellar cortical neurons. One of these antibodies defines a previously unrecognized class of cerebellar neuron. The distribution and antigenic characteristics of this neuron suggest that it has a distinct role in cerebellar circuitry.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hockfield, S -- R01 EY06511/EY/NEI NIH HHS/ -- New York, N.Y. -- Science. 1987 Jul 3;237(4810):67-70.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3603010" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Animals, Newborn/immunology ; Antibodies, Monoclonal/*immunology ; Cerebellar Cortex/cytology/*immunology ; Immune Tolerance ; Mice ; Mice, Inbred BALB C/immunology ; Rats
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 54
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-10-16
    Beschreibung: A portion of the Duchenne muscular dystrophy (DMD) gene transcript from human fetal skeletal muscle and mouse adult heart was sequenced, representing approximately 25 percent of the total, 14-kb DMD transcript. The nucleic acid and predicted amino acid sequences from the two species are nearly 90 percent homologous. The amino acid sequence that is predicted from this portion of the DMD gene indicates that the protein product might serve a structural role in muscle, but the abundance and tissue distribution of the messenger RNA suggests that the DMD protein is not nebulin.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hoffman, E P -- Monaco, A P -- Feener, C C -- Kunkel, L M -- 2T 32 GM07753-07/GM/NIGMS NIH HHS/ -- HD18658/HD/NICHD NIH HHS/ -- R01 NS23740/NS/NINDS NIH HHS/ -- T32 GM007753/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1987 Oct 16;238(4825):347-50.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Genetics, Children's Hospital, Boston, MA 02115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3659917" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Animals ; Base Sequence ; DNA/*genetics ; DNA, Recombinant ; Exons ; Humans ; Male ; Mice ; Molecular Sequence Data ; Muscle Proteins/genetics ; Muscles/analysis/embryology ; Muscular Dystrophies/*genetics ; Muscular Dystrophy, Animal/*genetics ; Myocardium/analysis ; Nucleic Acid Hybridization ; RNA, Messenger/genetics ; X Chromosome
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 55
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-06-26
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G -- New York, N.Y. -- Science. 1987 Jun 26;236(4809):1626-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3603001" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Humans ; Male ; National Institutes of Health (U.S.) ; Prostatic Neoplasms/*therapy ; United States
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 56
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-05-15
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1987 May 15;236(4803):772-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3576194" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Aged ; Humans ; Japan ; Retirement ; *Social Adjustment ; United States
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 57
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-08-14
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G -- New York, N.Y. -- Science. 1987 Aug 14;237(4816):725.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3616604" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Aged ; Dementia/*diagnosis/etiology/therapy ; Diagnosis, Differential ; Humans ; Middle Aged ; National Institutes of Health (U.S.) ; United States
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 58
    Publikationsdatum: 1987-04-03
    Beschreibung: A gene, termed gli, was identified that is amplified more than 50-fold in a malignant glioma. The gene is expressed at high levels in the original tumor and its derived cell line and is located at chromosome 12 position (q13 to q14.3). The gli gene is a member of a select group of cellular genes that are genetically altered in primary human tumors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kinzler, K W -- Bigner, S H -- Bigner, D D -- Trent, J M -- Law, M L -- O'Brien, S J -- Wong, A J -- Vogelstein, B -- CA-09243/CA/NCI NIH HHS/ -- CA-43722/CA/NCI NIH HHS/ -- NS-20023/NS/NINDS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1987 Apr 3;236(4797):70-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3563490" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Cell Line ; *Chromosomes, Human, Pair 12 ; Cloning, Molecular ; DNA, Neoplasm/*genetics ; *Gene Amplification ; Gene Expression Regulation ; Glioma/*genetics ; Humans ; RNA, Messenger/genetics ; RNA, Neoplasm/genetics
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 59
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    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-08-14
    Beschreibung: Toxic chlorinated dibenzo-p-dioxins are known to be formed in incinerators that burn municipal refuse. These compounds were synthesized by surface-catalyzed reactions on fly ash particulates taken from incinerators. Dioxins were produced catalytically from chlorinated phenol precursors, from non-chlorinated compounds that were chemically dissimilar to dioxins, and from reaction of phenol with inorganic chlorides. The relative amounts of dioxins formed from [13C6]pentachlorophenol with different fly ashes that had been cleaned of all organic compounds corresponded well with those amounts originally found on the samples as received from the incinerators. The optimum temperature range for the formation of dioxins from pentachlorophenol was 250 degrees to 350 degrees C.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Karasek, F W -- Dickson, L C -- New York, N.Y. -- Science. 1987 Aug 14;237(4816):754-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3616606" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Chemical Phenomena ; Chemistry ; Dioxins/*chemical synthesis ; Gas Chromatography-Mass Spectrometry ; *Hot Temperature ; Pentachlorophenol ; Polyvinyl Chloride ; *Refuse Disposal ; Tetrachlorodibenzodioxin/analogs & derivatives/*chemical synthesis
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 60
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-01-16
    Beschreibung: In order to study the rate and form of tubulin transport in cultured neuronal cells, the fluorescence recovery after the photobleaching of a fluorescent tubulin analog has been followed within the neuritic processes of differentiated PC12 cells. In these cells, as in peripheral axons, tubulin is transported in coherent, nondiffusing waves at two different slow rates that are within the range of the slow components a and b of axonal transport measured in vivo. Finally, it appears that most, if not all, of the tubulin analog is moving out these processes. Thus, slow neuroplasmic transport in cultured neuron-like cells is a good model of axonal transport, in which experimental manipulations of the system can be performed that would be difficult in the whole animal.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Keith, C H -- New York, N.Y. -- Science. 1987 Jan 16;235(4786):337-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2432662" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Axonal Transport ; Biological Transport ; Neurons/*metabolism ; Pheochromocytoma ; Rats ; Spectrometry, Fluorescence ; Tubulin/*metabolism ; Video Recording
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 61
    Publikationsdatum: 1987-08-21
    Beschreibung: The molecular basis for the marked difference between primate and rodent cells in sensitivity to the cardiac glycoside ouabain has been established by genetic techniques. A complementary DNA encoding the entire alpha 1 subunit of the mouse Na+- and K+-dependent adenosine triphosphatase (ATPase) was inserted into the expression vector pSV2. This engineered DNA molecule confers resistance against 10(-4) M ouabain to monkey CV-1 cells. Deletion of sequences encoding the carboxyl terminus of the alpha 1 subunit abolish the activity of the complementary DNA. The ability to assay the biological activity of this ATPase in a transfection protocol permits the application of molecular genetic techniques to the analysis of structure-function relationships for the enzyme that establishes the internal Na+/K+ environment of most animal cells. The full-length alpha 1 subunit complementary DNA will also be useful as a dominant selectable marker for somatic cell genetic studies utilizing ouabain-sensitive cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kent, R B -- Emanuel, J R -- Ben Neriah, Y -- Levenson, R -- Housman, D E -- CA-07919/CA/NCI NIH HHS/ -- CA-26712/CA/NCI NIH HHS/ -- CA-38992/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1987 Aug 21;237(4817):901-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3039660" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cells, Cultured ; Cercopithecus aethiops ; DNA/genetics ; Drug Resistance ; Gene Expression Regulation ; Macromolecular Substances ; Mice ; Ouabain/*pharmacology ; Sodium-Potassium-Exchanging ATPase/antagonists & inhibitors/*genetics ; Species Specificity ; Structure-Activity Relationship ; Transfection
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 62
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-05-15
    Beschreibung: Neoplasms produce substances that induce blood vessel formation (angiogenesis). Fractions from ethanol extracts of the Walker 256 carcinoma were isolated by silica column chromatography and C18 reversed-phase high-performance liquid chromatography. Two of the isolated fractions induced neovascularization when tested in the rabbit corneal micropocket assay. One of the fractions was identified as nicotinamide by desorption-electron impact mass spectrometry, nuclear magnetic resonance spectroscopy, and gas chromatography-mass spectrometry. The second active fraction contained nicotinamide as part of a more complex, as yet unidentified, molecular arrangement. Microgram quantities of commercial nicotinamide induced neovascularization in the corneal micropocket assay and in the chick chorioallantoic membrane assay.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kull, F C Jr -- Brent, D A -- Parikh, I -- Cuatrecasas, P -- New York, N.Y. -- Science. 1987 May 15;236(4803):843-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2437656" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Angiogenesis Inducing Agents/*isolation & purification/pharmacology ; Animals ; Carcinoma 256, Walker/*physiopathology ; Cells, Cultured ; Chick Embryo ; Cornea/blood supply ; Endothelium/cytology/drug effects ; Gas Chromatography-Mass Spectrometry ; Growth Substances/*isolation & purification ; Magnetic Resonance Spectroscopy ; Mass Spectrometry ; Mice ; Neovascularization, Pathologic ; Niacinamide/isolation & purification/pharmacology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 63
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    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-04-17
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1987 Apr 17;236(4799):257-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3563503" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Animals, Wild ; *Conservation of Natural Resources ; Government Agencies ; United States
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 64
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    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-03-20
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1987 Mar 20;235(4795):1453.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3823893" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Base Sequence ; *Chromosome Mapping ; *Genetics, Medical ; Humans ; Politics ; United States
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 65
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-03-13
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lindberg, D A -- New York, N.Y. -- Science. 1987 Mar 13;235(4794):1308.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3547649" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Fraud ; *Medlars ; National Library of Medicine (U.S.) ; *Publishing ; *Retraction of Publication as Topic ; United States
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 66
    Publikationsdatum: 1987-12-04
    Beschreibung: The inherited genetic defect in adenomatous polyposis has been localized to a small region on the long arm of chromosome 5. Sixteen DNA marker loci were used to construct a linkage map of the chromosome. When five kindreds segregating a gene for adenomatous polyposis coli were characterized with a number of the markers, significant linkage was found between one marker and the disease gene. Linkage analysis determined the location of the defective gene within a primary genetic map of chromosome 5.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Leppert, M -- Dobbs, M -- Scambler, P -- O'Connell, P -- Nakamura, Y -- Stauffer, D -- Woodward, S -- Burt, R -- Hughes, J -- Gardner, E -- CA40641/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1987 Dec 4;238(4832):1411-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Human Genetics, University of Utah Medical Center, Salt Lake City 84132.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3479843" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Chromosome Mapping ; *Chromosomes, Human, Pair 5 ; Colonic Polyps/*genetics ; Female ; Gardner Syndrome/genetics ; *Genes ; Genetic Markers ; Humans ; Lod Score ; Male ; Neoplasms, Multiple Primary/*genetics
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 67
    Publikationsdatum: 1987-10-30
    Beschreibung: A ring-deleted analog of atrial natriuretic factor--des[Gln18, Ser19, Gly20, Leu21, Gly22] ANF4-23-NH2 (C-ANF4-23)--binds with high affinity to approximately 99% of ANF receptors in the isolated perfused rat kidney. In this preparation, C-ANF4-23 is devoid of detectable renal effects and does not antagonize any of the known renal hemodynamic and natriuretic actions of biologically active ANF1-28. In contrast, both C-ANF4-23 and ANF1-28 increase sodium excretion and decrease blood pressure in intact anesthetized rats. This apparent contradiction is resolved by the finding that the ring-deleted analog markedly increases plasma levels of endogenous immunoreactive ANF in the rat. The results show that the majority of the renal receptors of ANF are biologically silent. This new class of receptors may serve as specific peripheral storage-clearance binding sites, acting as a hormonal buffer system to modulate plasma levels of ANF.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maack, T -- Suzuki, M -- Almeida, F A -- Nussenzveig, D -- Scarborough, R M -- McEnroe, G A -- Lewicki, J A -- AM-14241/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1987 Oct 30;238(4827):675-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, 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/2823385" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Atrial Natriuretic Factor/analogs & derivatives/*physiology ; Binding, Competitive ; Cyclic GMP/physiology ; Glomerular Filtration Rate ; Kidney/*physiology ; Kidney Cortex/metabolism ; Kidney Medulla/metabolism ; Natriuresis ; Rats ; Receptors, Atrial Natriuretic Factor ; Receptors, Cell Surface/*physiology ; Structure-Activity Relationship
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 68
    facet.materialart.
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-04-10
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, H I -- New York, N.Y. -- Science. 1987 Apr 10;236(4798):133.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3470946" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Containment of Biohazards ; Genetic Engineering/*standards ; United States
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 69
    Publikationsdatum: 1987-08-14
    Beschreibung: Foreign DNA was successfully introduced into the germline of the African mosquito vector of malaria Anopheles gambiae. Stable integration of genes into the germlines of insects had been achieved previously only in Drosophila melanogaster and related species and required the use of the P element transposon. In these experiments with Anopheles gambiae, the plasmid pUChsneo was used, which contains the selectable marker neo gene flanked by P element inverted repeats. Mosquitoes injected with this plasmid were screened for resistance to the neomycin analog G-418. A single event of plasmid insertion was recovered. Integration appears to be stable and, thus far, resistance to G-418 has been expressed for eight generations. The transformation event appears to be independent of P.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, L H -- Sakai, R K -- Romans, P -- Gwadz, R W -- Kantoff, P -- Coon, H G -- New York, N.Y. -- Science. 1987 Aug 14;237(4816):779-81.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3039658" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Anopheles/embryology/*genetics ; DNA Transposable Elements ; DNA, Bacterial/genetics ; Drosophila melanogaster/genetics ; Drug Resistance/genetics ; Female ; *Genes, Bacterial ; Gentamicins/pharmacology ; Male ; Microinjections ; Plasmids ; *Transformation, Genetic
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 70
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-09-18
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1987 Sep 18;237(4821):1415.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3114880" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Bacillus thuringiensis/genetics ; *Containment of Biohazards ; *DNA, Recombinant ; Fungi/genetics ; Mutation ; Pseudomonas/genetics ; Pseudomonas fluorescens/genetics ; Rhizobium/genetics ; United States ; United States Environmental Protection Agency
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 71
    Publikationsdatum: 1987-12-11
    Beschreibung: A new human retrovirus was isolated from a continuous cell line derived from a patient with CD4+ Tac- cutaneous T cell lymphoma/leukemia. This virus is related to but distinct from human T cell leukemia/lymphoma virus types I and II (HTLV-I and HTLV-II) and human immunodeficiency virus (HIV-1). With the use of a fragment of provirus cloned from one patient with T cell leukemia, closely related sequences were found in DNA of the cell line and of tumor cells from seven other patients with the same disease; these sequences were only distantly related to HTLV-I. The phenotype of the cells and the clinical course of the disease were clearly distinguishable from leukemia associated with HTLV-I. All patients and the wife of one patient showed a weak serological cross-reactivity with both HTLV-I and HIV-1 antigens. None of the patients proved to be at any apparent risk for HIV-1 infection. The name proposed for this virus is HTLV-V, and the date indicate that it may be a primary etiological factor in the major group of cutaneous T cell lymphomas/leukemias, including the sporadic lymphomas known as mycoses fungoides.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Manzari, V -- Gismondi, A -- Barillari, G -- Morrone, S -- Modesti, A -- Albonici, L -- De Marchis, L -- Fazio, V -- Gradilone, A -- Zani, M -- New York, N.Y. -- Science. 1987 Dec 11;238(4833):1581-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Dipartimento di Medicina Sperimentale e Scienze Biochimiche II, Universita di Roma, Tor Vergata, Italy.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2825353" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Antigens, Viral/analysis ; Deltaretrovirus/classification/*isolation & purification/ultrastructure ; Female ; Humans ; Leukemia/*microbiology ; Lymphoma/*microbiology ; Male ; Microscopy, Electron ; T-Lymphocytes/cytology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 72
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-02-20
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1987 Feb 20;235(4791):835-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3810167" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Jurisprudence ; Psychiatry/*education ; Publishing ; United States
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 73
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-11-13
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1987 Nov 13;238(4829):888-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3672133" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Humans ; *Magnetic Resonance Imaging ; National Institutes of Health (U.S.) ; United States
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 74
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-11-06
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1987 Nov 6;238(4828):741.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3672120" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Accident Prevention ; Government Agencies ; Nuclear Reactors/*standards ; *Safety ; United States
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 75
    facet.materialart.
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-04-24
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1987 Apr 24;236(4800):381.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3563516" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Carcinogens ; Formaldehyde/*toxicity ; Humans ; United States ; United States Environmental Protection Agency
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 76
    facet.materialart.
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-04-17
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1987 Apr 17;236(4799):250-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3563501" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Humans ; *Industry ; *Plants, Toxic ; *Smoking/prevention & control ; *Tobacco ; *Tobacco Smoke Pollution/prevention & control ; United States ; United States Environmental Protection Agency
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 77
    Publikationsdatum: 1987-07-24
    Beschreibung: Abnormal accumulation of connective tissue in blood vessels contributes to alterations in vascular physiology associated with disease states such as hypertension and atherosclerosis. Elastin synthesis was studied in blood vessels from newborn calves with severe pulmonary hypertension induced by alveolar hypoxia in order to investigate the cellular stimuli that elicit changes in pulmonary arterial connective tissue production. A two- to fourfold increase in elastin production was observed in pulmonary artery tissue and medial smooth muscle cells from hypertensive calves. This stimulation of elastin production was accompanied by a corresponding increase in elastin messenger RNA consistent with regulation at the transcriptional level. Conditioned serum harvested from cultures of pulmonary artery smooth muscle cells isolated from hypertensive animals contained one or more low molecular weight elastogenic factors that stimulated the production of elastin in both fibroblasts and smooth muscle cells and altered the chemotactic responsiveness of fibroblasts to elastin peptides. These results suggest that connective tissue changes in the pulmonary vasculature in response to pulmonary hypertension are orchestrated by the medial smooth muscle cell through the generation of specific differentiation factors that alter both the secretory phenotype and responsive properties of surrounding cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mecham, R P -- Whitehouse, L A -- Wrenn, D S -- Parks, W C -- Griffin, G L -- Senior, R M -- Crouch, E C -- Stenmark, K R -- Voelkel, N F -- CA31777/CA/NCI NIH HHS/ -- HD20521/HD/NICHD NIH HHS/ -- HL14985/HL/NHLBI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1987 Jul 24;237(4813):423-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3603030" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Anoxia ; Cattle ; Connective Tissue/pathology/*physiopathology ; Disease Models, Animal ; Elastin/genetics/physiology ; Humans ; Hypertension, Pulmonary/pathology/*physiopathology ; Muscle, Smooth, Vascular/pathology/*physiopathology ; RNA, Messenger/genetics ; Transcription, Genetic
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 78
    facet.materialart.
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-01-02
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, H I -- Young, F E -- New York, N.Y. -- Science. 1987 Jan 2;235(4784):14.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3798092" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Biotechnology/*standards ; Containment of Biohazards/*standards ; *DNA, Recombinant ; United States
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 79
    Publikationsdatum: 1987-10-02
    Beschreibung: Epidermal growth factor (EGF) is a potent polypeptide mitogen originally isolated from the adult male mouse submaxillary gland. It also acts as a gastrointestinal hormone. EGF-immunoreactive material has recently been identified within neuronal fibers and terminals in rodent brain. In the present study, EGF was found to enhance survival and process outgrowth of primary cultures of subneocortical telencephalic neurons of neonatal rat brain in a dose-dependent manner. This effect was observed with EGF concentrations as low as 100 picograms per milliliter (0.016 nanomolar) and was dependent on the continuous presence of EGF in the medium. Similar effects were observed with basic fibroblast growth factor, but several other growth-promoting substances, including other mitogens for glial elements, were without effect. Thus EGF, in addition to its mitogenic and hormonal activities, may act as a neurite elongation and maintenance factor for select neurons of the rodent central nervous system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Morrison, R S -- Kornblum, H I -- Leslie, F M -- Bradshaw, R A -- NS19319/NS/NINDS NIH HHS/ -- NS19964/NS/NINDS NIH HHS/ -- T32-CA0905A/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1987 Oct 2;238(4823):72-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Chemistry, College of Medicine, University of California, Irvine 92717.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3498986" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Animals, Newborn ; Brain/*cytology ; Cell Survival/drug effects ; Cells, Cultured ; Epidermal Growth Factor/*physiology ; Growth Substances/pharmacology ; Rats
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    Standort Signatur Erwartet Verfügbarkeit
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  • 80
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    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-08-28
    Beschreibung: A monoclonal antibody elicited by a transition-state analog that is representative of an intramolecular six-membered ring cyclization reaction acted as a stereospecific, enzyme-like catalyst for the appropriate substrate. Formation of a single enantiomer of a delta-lactone from the corresponding racemic delta-hydroxyester was accelerated by the antibody by about a factor of 170, which permitted isolation of the lactone in an enantiomeric excess of about 94 percent. This finding demonstrates the feasibility of catalytic-antibody generation for chemical transformations that require stereochemical control.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Napper, A D -- Benkovic, S J -- Tramontano, A -- Lerner, R A -- GM 13306/GM/NIGMS NIH HHS/ -- GM 35318/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1987 Aug 28;237(4818):1041-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3616626" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Antibodies, Monoclonal ; Catalysis ; Chemical Phenomena ; Chemistry ; Cyclization ; *Stereoisomerism
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 81
    Publikationsdatum: 1987-09-11
    Beschreibung: The role of polypeptide growth factors in the processes of inflammation and repair was investigated by analyzing the influence of transforming growth factor-beta (TGF-beta), applied directly to linear incisions made through rat dorsal skin. A dose-dependent, direct stimulatory effect of a single application of TGF-beta on the breaking strength of healing incisional wounds was demonstrated. An increase in maximum wound strength of 220 percent of control was observed at 5 days; the healing rate was accelerated by approximately 3 days for at least 14 days after production of the wound and application of TGF-beta. These increases in wound strength were accompanied by an increased influx of mononuclear cells and fibroblasts and by marked increases in collagen deposition at the site of application of TGF-beta. TGF-beta is thus a potent pharmacologic agent that can accelerate wound healing in rats.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mustoe, T A -- Pierce, G F -- Thomason, A -- Gramates, P -- Sporn, M B -- Deuel, T F -- New York, N.Y. -- Science. 1987 Sep 11;237(4820):1333-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2442813" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Growth Substances/*pharmacology ; Male ; Peptides/*pharmacology ; Rats ; Rats, Inbred Strains ; Staining and Labeling ; Transforming Growth Factors ; Wound Healing/*drug effects ; Wounds, Penetrating/*pathology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 82
    Publikationsdatum: 1987-01-09
    Beschreibung: In Xuan Wei County, Yunnan Province, lung cancer mortality is among China's highest and, especially in females, is more closely associated with indoor burning of "smoky" coal, as opposed to wood or "smokeless" coal, than with tobacco smoking. Indoor air samples were collected during the burning of all three fuels. In contrast to wood and smokeless coal emissions, smoky coal emission has high concentrations of submicron particles containing mutagenic organics, especially in aromatic and polar fractions. These studies suggested an etiologic link between domestic smoky coal burning and lung cancer in Xuan Wei.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mumford, J L -- He, X Z -- Chapman, R S -- Cao, S R -- Harris, D B -- Li, X M -- Xian, Y L -- Jiang, W Z -- Xu, C W -- Chuang, J C -- New York, N.Y. -- Science. 1987 Jan 9;235(4785):217-20.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3798109" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): China ; *Coal ; Female ; Humans ; Male ; Neoplasms/etiology/*mortality ; Polycyclic Compounds/analysis ; Smoke/*adverse effects/analysis ; Wood
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 83
    facet.materialart.
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-05-29
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Norman, C -- New York, N.Y. -- Science. 1987 May 29;236(4805):1054-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3576217" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Legislation as Topic ; *Pesticides/adverse effects ; United States ; United States Environmental Protection Agency
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 84
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-03-06
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Norman, C -- New York, N.Y. -- Science. 1987 Mar 6;235(4793):1135.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3823873" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Government ; *Nuclear Warfare ; United States
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 85
    Publikationsdatum: 1987-05-15
    Beschreibung: Antibody-producing cells display a special form of regulation whereby each cell produces immunoglobulin from only one of its two sets of antibody genes. This phenomenon, called allelic exclusion, is thought to be mediated by the product of one heavy chain allele restricting the expression of the other. Heavy chains are synthesized in two molecular forms, secreted and membrane bound. In order to determine whether it is specifically the membrane-bound form of the immunoglobulin M (IgM) heavy chain (mu) that mediates this regulation, transgenic mice were created that carry a human mu chain gene altered so that it can only direct the synthesis of the membrane-bound protein. The membrane-bound form of the human mu chain was made by most of the B cells in these animals as measured by assays of messenger RNA and surface immunoglobulins. Further, the many B cells that express the human gene do not express endogenous mouse IgM, and the few B cells that express endogenous mouse mu do not express the transgene. Thus, the membrane-bound form of the mu chain is sufficient to mediate allelic exclusion. In addition, the molecular structures recognized for this purpose are conserved between human and mouse systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nussenzweig, M C -- Shaw, A C -- Sinn, E -- Danner, D B -- Holmes, K L -- Morse, H C 3rd -- Leder, P -- New York, N.Y. -- Science. 1987 May 15;236(4803):816-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3107126" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Alleles ; Animals ; Antibody-Producing Cells/*immunology ; Gene Expression Regulation ; *Genes ; Humans ; Immunoglobulin M/genetics ; Immunoglobulin mu-Chains/*genetics ; Mice ; Mice, Inbred Strains ; RNA, Messenger/genetics ; Transcription, Genetic
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 86
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-01-09
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Norman, C -- New York, N.Y. -- Science. 1987 Jan 9;235(4785):151-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3798103" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Budgets/*legislation & jurisprudence ; Financial Management/*legislation & jurisprudence ; Research Support as Topic/*economics ; United States
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 87
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-04-17
    Beschreibung: In August 1986, after 6 years of effort, the U.S. Nuclear Regulatory Commission adopted a Policy Statement on safety goals for nuclear power reactors. The commission's qualitative goals state that individual members of the public should be provided a level of protection from the consequences of nuclear power plant operation such that they bear no significant additional risk to life and health, and societal risks to life and health from nuclear power should be comparable to or less than the risks of generating electricity by viable competing technologies and should not be a significant addition to other societal risks. The commission's safety goal Policy Statement also includes quantitative design objectives.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Okrent, D -- New York, N.Y. -- Science. 1987 Apr 17;236(4799):296-300.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3563510" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Accident Prevention ; *Government Agencies ; Health Policy/legislation & jurisprudence ; Humans ; Nuclear Reactors/*standards ; Risk ; *Safety ; United States
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 88
    Publikationsdatum: 1987-05-29
    Beschreibung: Two complementary DNA's, encoding the complete sequences of 671 and 673 amino acids for subspecies of rat brain protein kinase C, were expressed in COS 7 cells. The complementary DNA sequence analysis predicted that the two enzymes are derived from different ways of splicing and differ from each other only in the short ranges of their carboxyl-terminal regions. Both enzymes showed typical characteristics of protein kinase C that responded to Ca2+, phospholipid, and diacylglycerol. The enzymes showed practically identical physical and kinetic properties and were indistinguishable from one of the several subspecies of protein kinase C that occurs in rat brain but not in untransfected COS 7 cells. Partial analysis of the genomic structure confirmed that these two subspecies of protein kinase C resulted indeed from alternative splicing of a single gene.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ono, Y -- Kikkawa, U -- Ogita, K -- Fujii, T -- Kurokawa, T -- Asaoka, Y -- Sekiguchi, K -- Ase, K -- Igarashi, K -- Nishizuka, Y -- New York, N.Y. -- Science. 1987 May 29;236(4805):1116-20.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3576226" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Base Sequence ; Brain/enzymology ; Chromatography, High Pressure Liquid ; DNA/genetics ; Nucleic Acid Hybridization ; Protein Kinase C/*genetics/metabolism ; RNA Splicing ; Rabbits ; Rats
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 89
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-11-27
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palmer, A R -- New York, N.Y. -- Science. 1987 Nov 27;238(4831):1217.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3685970" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; DNA, Mitochondrial/*genetics ; Female ; Fertilization ; Male ; Spermatozoa/*physiology ; Zygote/physiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 90
    facet.materialart.
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-12-18
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Olson, R E -- New York, N.Y. -- Science. 1987 Dec 18;238(4834):1635.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3685999" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adult ; *Cholesterol, Dietary ; Dietary Fats ; Humans ; National Institutes of Health (U.S.) ; United States
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 91
    Publikationsdatum: 1987-01-30
    Beschreibung: Isochromosomal, respiratory-deficient yeast strains, such as a mit-, a hypersuppressive petite, and a petite lacking mitochondrial DNA, are phenotypically identical in spite of differences in their mitochondrial genomes. Subtractive hybridizations of complementary DNA's to polyadenylated RNA isolated from derepressed cultures of these strains reveal the presence of nuclear-encoded transcripts whose abundance varies not only between them and their respiratory-competent parent, but among the respiratory-deficient strains themselves. Transcripts of some nuclear-encoded mitochondrial proteins, like cytochrome c and the alpha and beta subunits of the mitochondrial adenosine triphosphatase, whose abundance is affected by glucose or heme, do not vary. In the absence of major metabolic variables, yeast cells seem to respond to the quality and quantity of mitochondrial DNA and modulate the levels of nuclear-encoded RNA's, perhaps as a means of intergenomic regulation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Parikh, V S -- Morgan, M M -- Scott, R -- Clements, L S -- Butow, R A -- New York, N.Y. -- Science. 1987 Jan 30;235(4788):576-80.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3027892" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Base Sequence ; Cell Nucleus/physiology ; Cytochrome c Group/genetics ; DNA, Fungal/genetics ; DNA, Mitochondrial/genetics ; Electron Transport Complex IV/genetics ; Gene Expression Regulation ; Genes, Fungal ; Genotype ; Mitochondria/*physiology ; Mutation ; RNA, Fungal/genetics ; RNA, Messenger/genetics ; RNA, Ribosomal/genetics ; Saccharomyces cerevisiae/*genetics
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 92
    Publikationsdatum: 1987-12-04
    Beschreibung: Ligand-induced decrease in cell-surface receptor number (homologous downregulation) is often due to rapid receptor internalization. Thyrotropin-releasing hormone (TRH), however, causes a slow downregulation of TRH receptors (TRH-Rs), with a half-time of approximately 12 hours, in GH3 rat pituitary cells. The mechanism of TRH-R downregulation was studied by monitoring TRH-evoked depolarizing currents in Xenopus oocytes injected with GH3 cell RNA as a bioassay for TRH-R messenger RNA (mRNA) activity. In GH3 cells, TRH caused a rapid decrease in TRH-R mRNA activity to 15 percent of control within 3 hours. Because the half-life of TRH-R mRNA activity in control cells was approximately 3 hours, the rapid decrease in mRNA activity was not due to inhibition of mRNA synthesis alone and may represent a post-transcriptional effect.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Oron, Y -- Straub, R E -- Traktman, P -- Gershengorn, M C -- New York, N.Y. -- Science. 1987 Dec 4;238(4832):1406-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, 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/2825350" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Female ; Gene Expression Regulation/drug effects ; Membrane Potentials ; Neoplasm Proteins/metabolism ; Oocytes/drug effects/*metabolism ; Pituitary Neoplasms/pathology ; RNA, Messenger/*biosynthesis ; RNA, Neoplasm/biosynthesis ; Rats ; Receptors, Neurotransmitter/genetics/*metabolism ; Receptors, Thyrotropin-Releasing Hormone ; Thyrotropin-Releasing Hormone/metabolism/*pharmacology ; Tumor Cells, Cultured/metabolism ; Xenopus laevis
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 93
    Publikationsdatum: 1987-10-09
    Beschreibung: Three lines of transgenic mice were produced that develop pancreatic neoplasms as a consequence of expression of an elastase I-SV40 T-antigen fusion gene in the acinar cells. A developmental analysis suggests at least a two-stage process in the ontogeny of this disease. The first stage is a T antigen-induced, preneoplastic state characterized by a progression from hyperplasia to dysplasia of the exocrine pancreas, by an increased percentage of tetraploid cells, and by an arrest in acinar cell differentiation. The second stage is characterized by the formation of tumor nodules that appear to be monoclonal, because they have discrete aneuploid DNA contents. The cells within the nodules as compared to normal pancreatic tissue have less total RNA by a factor of 5, less pancreas-specific messenger RNA by a factor of about 50, and increased levels of T-antigen messenger RNA. A tumor cell line has been derived that retains both pancreatic and neoplastic properties.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ornitz, D M -- Hammer, R E -- Messing, A -- Palmiter, R D -- Brinster, R L -- GM-07266/GM/NIGMS NIH HHS/ -- HD-09172/HD/NICHD NIH HHS/ -- NS-00956/NS/NINDS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1987 Oct 9;238(4824):188-93.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute Laboratory, University of Washington, Seattle 98195.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2821617" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antigens, Polyomavirus Transforming/*genetics ; *Cell Transformation, Neoplastic ; DNA Restriction Enzymes ; Genes ; Genes, Viral ; Mice ; Mice, Transgenic ; Pancreatic Elastase/genetics ; Pancreatic Neoplasms/genetics/*microbiology/pathology ; Protein Kinases/*genetics ; RNA, Messenger/genetics ; Simian virus 40/*genetics
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 94
    Publikationsdatum: 1987-03-06
    Beschreibung: Atrial natriuretic factor (ANF) is a peptide hormone that is released from atria and regulates a number of physiological processes, including steroidogenesis in adrenal cortex and testes. The parallel stimulation of membrane guanylate cyclase and corticosterone production in isolated fasciculata cells of rat adrenal cortex has supported the hypothesis of a mediatory role for cyclic guanosine monophosphate (cyclic GMP) in signal transduction. A novel particulate guanylate cyclase tightly coupled with ANF receptor was purified approximately 273,000-fold by two-step affinity chromatography. The enzyme had a molecular size of 180 kilodaltons and was acidic in nature with a pI of 4.7. Its specific activity was 1800 nanomoles of cyclic GMP formed per minute per milligram of protein. The purified enzyme bound ANF with a specific binding activity of 4.01 nanomoles per milligram of protein, a value that is close to the theoretical binding activity of 5.55 nanomoles per milligram of protein for 1 mole of the ligand binding 1 mole of the receptor protein. These results indicate that the guanylate cyclase-coupled ANF receptor exists in a 180-kilodalton protein of rat adrenocortical carcinoma and represent a step toward the elucidation of the basic mechanism of cyclic GMP-mediated transmembrane signal transduction in response to a hormone.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Paul, A K -- Marala, R B -- Jaiswal, R K -- Sharma, R K -- NS23744/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1987 Mar 6;235(4793):1224-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2881352" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adrenal Cortex ; Adrenal Gland Neoplasms/enzymology/metabolism/pathology ; Animals ; Carcinoma/enzymology/metabolism/pathology ; Cell Membrane/enzymology/metabolism ; Guanylate Cyclase/isolation & purification/*metabolism ; Membrane Proteins/*metabolism ; Rats ; Receptors, Atrial Natriuretic Factor ; Receptors, Cell Surface/*metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 95
    Publikationsdatum: 1987-02-13
    Beschreibung: A highly T-lymphotropic virus was isolated from cats in a cattery in which all the animals were seronegative for feline leukemia virus. A number of cats in one pen had died and several had an immunodeficiency-like syndrome. Only 1 of 18 normal cats in the cattery showed serologic evidence of infection with this new virus, whereas 10 of 25 cats with signs of ill health were seropositive for the virus. Tentatively designated feline T-lymphotropic lentivirus, this new feline retrovirus appears to be antigenically distinct from human immunodeficiency virus. There is no evidence for cat-to-human transmission of the agent. Kittens experimentally infected by way of blood or plasma from naturally infected animals developed generalized lymphadenopathy several weeks later, became transiently febrile and leukopenic, and continued to show a generalized lymphadenopathy 5 months after infection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pedersen, N C -- Ho, E W -- Brown, M L -- Yamamoto, J K -- CA-39016-02/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1987 Feb 13;235(4790):790-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3643650" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antigens, Viral/analysis ; Cat Diseases/*microbiology ; Cats/*microbiology ; Female ; HIV/immunology ; Immunologic Deficiency Syndromes/microbiology/*veterinary ; Lymphocytes/ultrastructure ; Male ; Microscopy, Electron ; Retroviridae/immunology/*isolation & purification/ultrastructure ; Species Specificity
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 96
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-04-10
    Beschreibung: A cycloheximide-sensitive protein responsive to adenosine 3',5'-monophosphate has been postulated to participate in the regulation of cholesterol side-chain cleavage activity in steroidogenic tissues. Such a steroidogenesis activator polypeptide (SAP) had been isolated from rat adrenocortical tissue and partially characterized. Now a polypeptide with comparable chromatographic behavior and biological activity has been purified from the rat H-540 Leydig cell tumor in quantities sufficient for amino acid sequencing. The activator contains 30 amino acid residues and has a molecular weight of 3215. The synthetic construct based on this sequence is virtually equipotent with native H-540 tumor SAP in an adrenal mitochondrial cholesterol side-chain cleavage assay. Hormonal regulation of the intracellular concentration of this activator may control the rate of cholesterol metabolism in steroidogenic organs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pedersen, R C -- Brownie, A C -- AM18141/AM/NIADDK NIH HHS/ -- HD00613/HD/NICHD NIH HHS/ -- HD19309/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1987 Apr 10;236(4798):188-90.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3563495" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adrenal Cortex/analysis ; Amino Acid Sequence ; Animals ; Cholesterol/metabolism ; Cholesterol Side-Chain Cleavage Enzyme/*metabolism ; Chromatography, High Pressure Liquid ; *Heat-Shock Proteins ; Leydig Cell Tumor/*analysis ; Male ; Mitochondria/enzymology ; *Molecular Chaperones ; Oxidoreductases/*metabolism ; Peptide Fragments/analysis ; Proteins/*analysis ; Rats ; Steroids/*biosynthesis
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 97
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-07-10
    Beschreibung: The bacteriophage T4 nrdB gene, encoding nucleoside diphosphate reductase subunit B, contains a self-splicing group I intervening sequence. The nrdB intron was shown to be absent from the genomes of the closely related T-even phages T2 and T6. Evidence for variable intron distribution was provided by autocatalytic 32P-guanosine 5'-triphosphate labeling of T-even RNAs, DNA and RNA hybridization analyses, and DNA sequencing studies. The results indicate the nonessential nature of the intron in nrdB expression and phage viability. Furthermore, they suggest that either precise intron loss from T2 and T6 or lateral intron acquisition by T4 occurred since the evolution of these phages from a common ancestor. Intron movement in the course of T-even phage divergence raises provocative questions about the origin of these self-splicing elements in prokaryotes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pedersen-Lane, J -- Belfort, M -- GM 33314/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1987 Jul 10;237(4811):182-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3037701" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *DNA Transposable Elements ; Genes ; *Genes, Viral ; *Introns ; Phylogeny ; RNA Splicing ; RNA, Messenger/genetics ; RNA, Viral/genetics ; Ribonucleoside Diphosphate Reductase/*genetics ; Ribonucleotide Reductases/*genetics ; T-Phages/*genetics ; Viral Proteins/*genetics
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 98
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-07-10
    Beschreibung: Inhibin is a gonadal glycoprotein hormone that regulates the production of follicle-stimulating hormone (FSH) by the anterior pituitary gland and exhibits intragonadal actions as well. The present study shows that inhibin-like immunoreactivity (inhibin-LI) is present in cells of the cytotrophoblast layer of human placenta at term and in primary cultures of human trophoblasts. Human chorionic gonadotropin (hCG) stimulated secretion of inhibin-LI from these cultured placental cells. This effect was mimicked by 8-bromo-cyclic adenosine monophosphate (8-bromo-cAMP), forskolin, and cholera toxin, suggesting that the mechanism of hCG induction of placental inhibin-LI secretion is cAMP-dependent. Incubation with an antiserum that binds the alpha-subunit of human inhibin increased the secretion of hCG and gonadotropin-releasing hormone-like immunoreactivity (GnRH-LI) from trophoblast cells in culture, suggesting a local tonic inhibitory action of endogenous inhibin on hCG and GnRH-LI release. The action of inhibin on hCG secretion may partially require the presence of placental GnRH, as suggested by evidence that a synthetic GnRH antagonist partially reverses the hCG increase induced by inhibin immunoneutralization. Results suggest paracrine roles for both inhibin and GnRH in the regulation of placental hCG production.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Petraglia, F -- Sawchenko, P -- Lim, A T -- Rivier, J -- Vale, W -- AM26741/AM/NIADDK NIH HHS/ -- HD13527/HD/NICHD NIH HHS/ -- NS21182/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1987 Jul 10;237(4811):187-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3299703" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): 8-Bromo Cyclic Adenosine Monophosphate/pharmacology ; Cells, Cultured ; Cholera Toxin/pharmacology ; Chorionic Gonadotropin/pharmacology/*secretion ; Chorionic Villi/analysis ; Colforsin/pharmacology ; Feedback ; Female ; Gonadotropin-Releasing Hormone/antagonists & inhibitors/pharmacology/secretion ; Humans ; Infant, Newborn ; Inhibins/analysis/*physiology ; Male ; Pregnancy ; Secretory Rate/drug effects ; Trophoblasts/analysis/drug effects/*secretion
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 99
    Publikationsdatum: 1987-04-03
    Beschreibung: The primary structure of human uromodulin, a 616-amino acid, 85-kilodalton glycoprotein with in vitro immunosuppressive properties, was determined through isolation and characterization of complementary DNA and genomic clones. The amino acid sequence encoded by one of the exons of the uromodulin gene has homology to the low-density-lipoprotein receptor and the epidermal growth factor precursor. Northern hybridization analyses demonstrate that uromodulin is synthesized by the kidney. Evidence is provided that uromodulin is identical to the previously characterized Tamm-Horsfall glycoprotein, the most abundant protein in normal human urine.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennica, D -- Kohr, W J -- Kuang, W J -- Glaister, D -- Aggarwal, B B -- Chen, E Y -- Goeddel, D V -- New York, N.Y. -- Science. 1987 Apr 3;236(4797):83-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3453112" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Amino Acids/analysis ; Base Sequence ; Chemistry, Physical ; Cloning, Molecular ; Cysteine ; DNA/genetics ; Gene Expression Regulation ; Genes ; Glycoproteins/*genetics ; Humans ; Mucoproteins/*analysis/*genetics ; Peptide Fragments/analysis ; Physicochemical Phenomena ; RNA, Messenger/genetics ; Uromodulin
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 100
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1987-03-20
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pratt, J -- New York, N.Y. -- Science. 1987 Mar 20;235(4795):1447.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3823892" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Government Agencies ; *Research Support as Topic ; United States
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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