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  • Animals  (374)
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  • 1979  (592)
  • 1
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    Flatworm control of mosquito larvae in rice fields (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-12-21
    Description: We describe some flatworms (some in the genus Mesostoma) that kill mosquito larvae and may account for the variability in the population densities of Culex tarsalis and Anopheles freeborni in rice fields. When mosquito larvae brush against these worms, the larvae immediately become paralyzed and die. When C. tarsalis larvae are placed inside floating cages that exclude flatworms (50-micromter mesh), there is a fourfold increase in the their survival. Rice fields that have abundant mosquito populations lack flatworms. Most such fields have only recently been turned over to rice production, suggesting that the flatworms have difficulty dispersing to new fields but, once established, are able to overwinter and control mosquitoes for the subsequent years of rice production.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Case, T J -- Washino, R K -- New York, N.Y. -- Science. 1979 Dec 21;206(4425):1412-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/41321" target="_blank"〉PubMed〈/a〉
    Keywords: Agriculture/*methods ; Animals ; Anopheles/physiology ; California ; Culex/physiology ; Culicidae/*physiology ; Insect Control/*methods ; Larva ; *Oryza ; Platyhelminths/*physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Treatment reduces deaths from hypertension (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-12-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G B -- New York, N.Y. -- Science. 1979 Dec 21;206(4425):1386-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/505012" target="_blank"〉PubMed〈/a〉
    Keywords: Antihypertensive Agents/therapeutic use ; Blood Pressure ; Diet, Sodium-Restricted ; Female ; Humans ; Hypertension/complications/*drug therapy/physiopathology ; Male ; Myocardial Infarction/etiology/prevention & control
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    A direct role of dopamine in the rat subthalamic nucleus and an adjacent intrapeduncular area (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-12-21
    Description: The subthalamic nucleus, a clinically important component of the extrapyramidal motor system, and a lateral area extending into the peduncle contain catecholamine terminals and dopamine receptors coupled to adenylate cyclase. In addition, dopamine agonists administered in vivo enhance glucose utilization in the region. Thus, neuronal function in this region is directly affected by dopamine and dopaminergic drugs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brown, L L -- Markman, M H -- Wolfson, L I -- Dvorkin, B -- Warner, C -- Katzman, R -- New York, N.Y. -- Science. 1979 Dec 21;206(4425):1416-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/505015" target="_blank"〉PubMed〈/a〉
    Keywords: Adenylyl Cyclases/metabolism ; Animals ; Brain Mapping ; Catecholamines/pharmacology ; Dopamine/pharmacology ; Enzyme Activation/drug effects ; Extrapyramidal Tracts/*metabolism/ultrastructure ; Glucose/metabolism ; Male ; Mesencephalon/*metabolism ; Neurons/metabolism ; Rats ; Receptors, Dopamine/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Chlorpromazine and its metabolites alter polymerization and gelation of actin (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-12-21
    Description: Hepatic hydroxylated metabolites of chlorpromazine (10(-5)M to 10(-4)M), a frequently used phenothiazine tranquilizer, produce solid gel formation with filamentous actin, but the less toxic chlorpromazine sulfoxide metabolite does not. At higher concentrations (5 x 10(-4)M) chlorpromazine inhibits actin polymerization. These dose-response relationships parallel the drug's hepatic toxicity in vivo and suggest that interactions between chloropromazine or chlorpromazine metabolites and actin could be an underlying mechanism of cell injury.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Elias, E -- Boyer, J L -- New York, N.Y. -- Science. 1979 Dec 21;206(4425):1404-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/574316" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/*metabolism ; Animals ; Chlorpromazine/*analogs & derivatives/*pharmacology ; Cytoskeleton/drug effects ; Dose-Response Relationship, Drug ; Gels ; Protein Binding/drug effects ; Rabbits ; Viscosity
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 5
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    Perception of size of one object among many (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-12-21
    Description: Adaptation to a grating of properly chosen frequency may lead to two apparently conflicting observations: Another grating may then appear to be of increased frequency (compared with its "unadapted" frequency) while the individual bars of the grating appear to have widened. This perceived widening parallels previous results with single bars. By attending to only one grating bar, the subject effectively seems to change the grating frequency spectrum to that of a single bar.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Levinson, J Z -- Frome, F S -- New York, N.Y. -- Science. 1979 Dec 21;206(4425):1425-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/505017" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; Humans ; Size Perception/*physiology ; Visual Fields ; Visual Perception/*physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 6
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    Spontaneous diabetes mellitus: reversal and prevention in the BB/W rat with antiserum to rat lymphocytes (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-12-21
    Description: Injections of rabbit antiserum to rat lymphocytes reversed hyperglycemia in 36 percent of spontaneously diabetic rats (Bio Breeding/Worcester) and prevented diabetes in susceptible nondiabetic controls. These findings strengthen the hypothesis that cell-mediated autoimmunity plays a role in the pathogenesis of diabetes in this animal model that mimics many morpholigic and physiologic characteristics of human insulin-dependent diabetes mellitus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Like, A A -- Rossini, A A -- Guberski, D L -- Appel, M C -- Williams, R M -- New York, N.Y. -- Science. 1979 Dec 21;206(4425):1421-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/388619" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antilymphocyte Serum/*therapeutic use ; *Autoimmune Diseases ; Blood Glucose/metabolism ; Diabetes Mellitus, Experimental/*immunology/prevention & control/therapy ; Immunosuppression ; Islets of Langerhans/immunology ; Isoantibodies ; Lymphocytes/*immunology ; Rats
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 7
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    Cancer and industrial chemical production (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-12-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Davis, D L -- Magee, B H -- New York, N.Y. -- Science. 1979 Dec 21;206(4425):1356, 1358.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/505010" target="_blank"〉PubMed〈/a〉
    Keywords: Environmental Exposure ; Humans ; *Industry ; Neoplasms/*chemically induced/epidemiology ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    Legionnaires' disease: concentrations of selenium and other elements (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-12-21
    Description: Selenium concentrations in the serums of 17 acutely ill Legionnaires' disease patients were significantly lower than in their matching convalescent-phase serums. This trend was not observed in ten similarly paired samples of serum from control patients with pneumonia. There were no significant differences in the concentrations of nickel, copper, bromine, rubidium, lead, barium, or titanium in the serums of Legionnaires' disease and control patients.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, J R -- Anderson, J M -- New York, N.Y. -- Science. 1979 Dec 21;206(4425):1426-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/505018" target="_blank"〉PubMed〈/a〉
    Keywords: Humans ; Legionnaires' Disease/*blood ; Metals/blood ; Nickel/blood ; Selenium/*blood
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
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    Fetal mortality and sex ratio (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-12-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lowry, J T -- New York, N.Y. -- Science. 1979 Dec 21;206(4425):1428.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/505019" target="_blank"〉PubMed〈/a〉
    Keywords: Female ; Fetal Death/*epidemiology ; Humans ; Male ; Pregnancy ; *Sex Ratio
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 10
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    Derived X chromosome in the turtle genus Staurotypus (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-12-21
    Description: C-banding, G-banding, and silver (Ag-AS) staining techniques reveal a distinctive sex chromosome system in the turtle Staurotypus salvinii. Unlike previously described systems in most other vertebrate groups in which the Y or W is derived and the homogametic sex represents the primitive condition, the reverse is true for S. salvinii. The X chromosome is derived; thus the homogametic sex (female) is more derived than the heterogametic sex. The male is intermediate between the female and the ancestral condition observed in other turtle species. Staurotypus does not confirm to the general model of sex chromosome evolution for diploid dioecious organisms.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sites, J W Jr -- Bickham, J W -- Haiduk, M W -- New York, N.Y. -- Science. 1979 Dec 21;206(4425):1410-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/92052" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Evolution ; Female ; Sex Chromosomes/*ultrastructure ; Silver ; Species Specificity ; Staining and Labeling ; Turtles/*anatomy & histology ; X Chromosome/*ultrastructure
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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