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  • Artikel  (16)
  • Neueste Artikel (Zeitschrifteninhaltsverzeichnisse / in press)  (16)
  • Dose-Response Relationship, Drug
  • 2020-2022
  • 1980-1984  (16)
  • 1925-1929
  • 1981  (16)
  • Biologie  (16)
  • 1
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    2,4,5-trichlorophenoxyacetic acid causes behavioral effects in chickens at environmentally relevant doses (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1981-02-06
    Beschreibung: Administration of the herbicide 2,4,5-trichlorophenoxyacetic acid to incubating chicken eggs alters behavior after hatching. Single doses, with no morphological effects, retard learning (lowest dose, 7 milligrams per kilogram of body weight) and increase general activity (27 milligrams per kilogram) and jumping (13 milligrams per kilogram). Day 15 of incubation is the most susceptible stage of development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sanderson, C A -- Rogers, L J -- New York, N.Y. -- Science. 1981 Feb 6;211(4482):593-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7455699" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): 2,4,5-Trichlorophenoxyacetic Acid/*pharmacology/toxicity ; Age Factors ; Animals ; Behavior, Animal/*drug effects ; Chick Embryo/drug effects ; Chickens ; Discrimination Learning/drug effects ; Dose-Response Relationship, Drug ; Motor Activity/drug effects
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 2
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    Bee venom enhances guanylate cyclase activity (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1981-07-17
    Beschreibung: Bee venom and phospholipase A2 extracted from bee venom enhanced guanylate cyclase (E.C. 4.6.1.2) activity two- to threefold in rat liver, lung, heart, kidney, ileum, and cerebellum. Dose-response relationships revealed that bee venom at concentrations as low as 1 microgram per milliliter and phospholipase A2 at 1 microunit per milliliter caused a maximal enhancement of guanylate cyclase.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vesely, D L -- New York, N.Y. -- Science. 1981 Jul 17;213(4505):359-60.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6113689" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Bee Venoms/*pharmacology ; Dose-Response Relationship, Drug ; Enzyme Activation ; Guanylate Cyclase/*metabolism ; Kinetics ; Organ Specificity ; Phospholipases/*pharmacology ; Phospholipases A/*pharmacology ; Phospholipases A2 ; Rats
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 3
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    Chemical impurity produces extra compound eyes and heads in crickets (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1981-04-03
    Beschreibung: A chemical impurity isolated from commercially purchased acridine causes cricket embryos to develop extra compound eyes, branched antennae, extra antennae, and extra heads. Purified acridine does not produce similar duplications of cricket heads or head structures nor do the substituted acridines proflavine, acriflavine, or acridine orange. A dose-response relation exists such that the number and severity of abnormalities increase with increasing concentration of the teratogen.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Walton, B T -- New York, N.Y. -- Science. 1981 Apr 3;212(4490):51-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6782672" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Abnormalities, Multiple/chemically induced ; Acridines/*isolation & purification/pharmacology ; Animals ; Dose-Response Relationship, Drug ; Drug Contamination ; Embryo, Nonmammalian/drug effects ; Eye Abnormalities ; Head/abnormalities ; Orthoptera/*drug effects ; *Teratogens
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 4
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    Ethanol tolerance in the rat is learned (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1981-07-31
    Beschreibung: Rats were trained to walk on a treadmill to avoid foot shock. The animals developed tolerance for ethanol if given subsequent practice while ethanol intoxicated. Rats given equivalent doses of ethanol after practice did not develop tolerance, nor did saline-treated controls. These results challenge the hypothesis that mere repeated doses of ethanol are sufficient to induce tolerance. It seems that tolerance does not develop unless the response used to measure tolerance is performed while the subject is intoxicated.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wenger, J R -- Tiffany, T M -- Bombardier, C -- Nicholls, K -- Woods, S C -- 03504/PHS HHS/ -- AA 04658/AA/NIAAA NIH HHS/ -- New York, N.Y. -- Science. 1981 Jul 31;213(4507):575-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7244656" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Avoidance Learning/*drug effects ; Dose-Response Relationship, Drug ; Drug Tolerance ; Ethanol/blood/*pharmacology ; Rats
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 5
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    Conversion of 3T3-L1 fibroblasts to fat cells by an inhibitor of methylation: effect of 3-deazaadenosine (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1981-03-13
    Beschreibung: 3-Deazaadenosine, an inhibitor of methylation, increased the frequency of conversion of 3T3-L1 fibroblasts to fat cells in a dose-dependent manner. Once converted, the 3T3-L1 fat cells retained their adipose morphology and accumulated triglycerides even when 3-deazaadenosine was removed from the culture medium. 3-Deazaadenosine may perturb cellular methylation and thereby lead to an increase in the frequency of differentiation of 3T3-L1 fibroblasts to fat cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chiang, P K -- New York, N.Y. -- Science. 1981 Mar 13;211(4487):1164-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7466386" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adipose Tissue/*cytology ; Animals ; Carnitine/pharmacology ; Cell Differentiation/*drug effects ; Cells, Cultured ; Dose-Response Relationship, Drug ; Fibroblasts/cytology ; Methylation ; Mice ; Ribonucleosides/*pharmacology ; Tubercidin/*pharmacology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 6
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    Detection of circulating metallothionein in rats injected with zinc or cadmium (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1981-11-13
    Beschreibung: Circulating metallothionein was measured by radioimmunoassay over a 13-day period in male Sprague-Dawley rats that received a sequence of three intraperitoneal injections (at 3-day intervals) of either 5 milligrams of zinc or 0.8 milligrams of cadmium per kilogram of body weight. These amounts of zinc and cadmium produced metallothionein concentrations in the range of 2 to 5 nanograms per milliliter of serum (zinc) and 2 to 15 nanograms per milliliter of serum (cadmium). In control rats given saline injections over the same period the metallothionein concentration ranged from 1 to 3 nanograms per milliliter of serum.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Garvey, J S -- Chang, C C -- ES 01629/ES/NIEHS NIH HHS/ -- New York, N.Y. -- Science. 1981 Nov 13;214(4522):805-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7292012" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cadmium/*pharmacology ; Dose-Response Relationship, Drug ; Male ; Metalloproteins/*blood ; Metallothionein/*blood/immunology ; Radioimmunoassay ; Rats ; Rats, Inbred Strains ; Zinc/*pharmacology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 7
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    Somatomedin-C mediates growth hormone negative feedback by effects on both the hypothalamus and the pituitary (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1981-06-12
    Beschreibung: Somatomedin-C stimulates somatostatin release to a maximum of 390 percent of basal release during short-term (20-minute) incubation of rat hypothalamus. It has no effect on basal or stimulated growth hormone release from primary cultures of rat adenohypophyseal cells during a 4-hour incubation, but inhibits stimulated release by more that 90 percent after 24 hours. These findings suggest that somatomedin-C participates in the growth hormone negative feedback loop with an immediate effect on hypothalamic somatostatin and a delayed effect on the anterior pituitary.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Berelowitz, M -- Szabo, M -- Frohman, L A -- Firestone, S -- Chu, L -- Hintz, R L -- AM 18722/AM/NIADDK NIH HHS/ -- AM 24085/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1981 Jun 12;212(4500):1279-81.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6262917" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Bucladesine/pharmacology ; Cells, Cultured ; Dose-Response Relationship, Drug ; Feedback ; Growth Hormone/pharmacology/*secretion ; Hypothalamus/drug effects/*physiology ; Insulin-Like Growth Factor I ; Kinetics ; Pituitary Gland, Anterior/drug effects/*secretion ; Rats ; Somatomedins/*pharmacology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 8
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    Interaction between purine and benzodiazepine: Inosine reverses diazepam-induced stimulation of mouse exploratory behavior (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1981-02-13
    Beschreibung: Inosine, 2-deoxyinosine, and 2-deoxyguanosine completely reversed the increase in exploratory activity elicited in mice by diazepam. The inhibition of exploratory behavior by purines occurred at doses that when given alone have no effect on exploratory behavior. 7-Methylinosine, which does not bind to the brain benzodiazepine binding site in vitro, had no effect on the diazepam-induced increase in exploratory behavior. Behavioral effects produced by various combinations of inosine and diazepam indicate that the interaction between purine and benzodiazepine is antagonistic and support the hypothesis that the naturally occurring purines function in anxiety-related behaviors that respond to benzodiazepine treatment.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Crawley, J N -- Marangos, P J -- Paul, S M -- Skolnick, P -- Goodwin, F K -- New York, N.Y. -- Science. 1981 Feb 13;211(4483):725-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6256859" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Anxiety/*drug effects ; Behavior, Animal/drug effects ; Diazepam/*antagonists & inhibitors ; Dose-Response Relationship, Drug ; Humans ; Inosine/*pharmacology ; Male ; Mice ; Receptors, Drug/*drug effects ; Receptors, GABA-A
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 9
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    Response artifact in the measurement of neuroleptic-induced anhedonia (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1981-07-17
    Beschreibung: Systemic administration of the neuroleptic drug alpha-flupenthixol attenuated lever-pressing behavior in rats responding for rewarding brain stimulation. The magnitude of this attenuation was dose-dependent and resembled the effects of reward reduction and termination. However, when the operant response requirements of the same rats were changed to nose poking, identical drug treatments produced relatively little attenuation in performance. These data do not support the belief that neuroleptics produce a general state of anhedonia. Rather, the apparent suppression of reinforced behaviors depends at least in part on the kinetic requirements of the response.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ettenberg, A -- Koob, G F -- Bloom, F E -- New York, N.Y. -- Science. 1981 Jul 17;213(4505):357-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7244622" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Brain/physiology ; Conditioning (Psychology)/*drug effects ; Dose-Response Relationship, Drug ; Electroshock ; Flupenthixol/*pharmacology ; Male ; Rats ; *Reward ; Thioxanthenes/*pharmacology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 10
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    Carcinogens and regulation (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1981-01-23
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lappe, M -- Hooper, K -- Blake, E -- Pfund, N -- Gardner, E -- Rosenberg, J -- New York, N.Y. -- Science. 1981 Jan 23;211(4480):332-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7221543" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Biological Assay ; *Carcinogens ; Dose-Response Relationship, Drug ; Humans ; Species Specificity
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 11
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    Elastin fragments attract macrophage precursors to diseased sites in pulmonary emphysema (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1981-05-22
    Beschreibung: This study suggests one mechanism by which alveolar macrophages accumulate in the lung in pulmonary emphysema: elastin fragments generated at the diseased sites are potent chemoattractants for monocytes, the precursors of the macrophages. The most chemotactic elastin fragments have a molecular weight between 10,000 and 50,000 and are active at concentrations as low as 3 nanograms per milliliter. By comparison, elastin fragments with higher molecular weights and desmosines are active at concentrations greater than 0.3 microgram per milliliter. In addition, preincubation of monocytes with the 10,000- to 50,000-dalton elastin impairs the ability of the cells to migrate toward elastin fragments but not toward activated serum. Fragments of tropoelastin are not chemotactic for monocytes. Because elastin, but not tropoelastin, contains lysyl-derived cross-links, these structures may be the active chemotactic site on the elastin fragments.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hunninghake, G W -- Davidson, J M -- Rennard, S -- Szapiel, S -- Gadek, J E -- Crystal, R G -- New York, N.Y. -- Science. 1981 May 22;212(4497):925-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7233186" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Cells, Cultured ; Chemotaxis, Leukocyte/*drug effects ; Dose-Response Relationship, Drug ; Elastin/*analogs & derivatives/*pharmacology ; Humans ; Macrophages/physiology ; Monocytes/*physiology ; Peptide Fragments/pharmacology ; Pulmonary Emphysema/*physiopathology ; Structure-Activity Relationship ; Tropoelastin/*pharmacology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 12
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    Prudent practices for handling hazardous chemicals in laboratories (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1981-02-20
    Beschreibung: A National Research Council report has recommended practices for safe handling and disposal of hazardous chemicals in laboratories. They are a practical alternative to detailed regulations on individual chemicals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McKusick, B C -- New York, N.Y. -- Science. 1981 Feb 20;211(4484):777-80.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7466359" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Air Pollutants, Occupational/adverse effects ; Dose-Response Relationship, Drug ; Explosions/prevention & control ; Laboratories/*standards ; *Occupational Medicine ; Research ; Ventilation
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 13
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    Ranking animal carcinogens: a proposed regulatory approach (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1981-11-20
    Beschreibung: The nature and extent of positive evidence associated with animal carcinogens vary widely, yet present regulatory policy does not permit adequate discrimination among the many carcinogenic substances. Most are treated as if they pose equal potential risk to humans, and this is not consistent with the available data. Without knowledge of carcinogenic mechanisms, the evaluation of responses in intact mammalian surrogates best reflects the potential levels of human risk. An example of a scoring system is proposed by which animal carcinogens are ranked according to the most relevant toxicological evidence derived from animal and genotoxicity studies. Different classes of animal carcinogens could thus be recognized and would permit several regulatory options and provide a means to establish priorities for public and scientific concerns.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Squire, R A -- New York, N.Y. -- Science. 1981 Nov 20;214(4523):877-80.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7302565" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Carcinogens/toxicity ; Dose-Response Relationship, Drug ; Drug Evaluation, Preclinical/*methods ; Humans ; Neoplasms/chemically induced ; Neoplasms, Experimental/*chemically induced ; Risk
    Print ISSN: 0036-8075
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 14
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    Thyrotropin-releasing hormone effects in the central nervous system: dependence on arousal state (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1981-11-06
    Beschreibung: Thyrotropin-releasing hormone was microinjected into the dorsal hippocampus of ground squirrels (Citellus lateralis) when they were at different levels of arousal, as assessed by electrophysiological and behavioral criteria. When administered to the awake animal, thyrotropin-releasing hormone produced dose-dependent decreases in body temperature accompanied by behavioral quieting and reductions in metabolic rate and electromyographic activity. The magnitude of these effects was greater when the peptide was microinjected during a period of behavioral activation. In contrast, administration of the peptide during slow wave sleep produced increased thermogenesis, an increase in electromyographic activity, and an increase in the amount of electroencephalographic desynchronization.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stanton, T L -- Bechman, A L -- Winokur, A -- New York, N.Y. -- Science. 1981 Nov 6;214(4521):678-81.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6794147" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Arousal/*drug effects ; Body Temperature Regulation/*drug effects ; Dose-Response Relationship, Drug ; Female ; Hippocampus/*drug effects ; Male ; Sciuridae/*physiology ; Thyrotropin-Releasing Hormone/*pharmacology ; Wakefulness/drug effects
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 15
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    Side-effect reduction by use of drugs that bind to separate but equivalent binding sites (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1981-12-18
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ehrenstein, G -- Huang, L Y -- New York, N.Y. -- Science. 1981 Dec 18;214(4527):1365-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7313696" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Binding Sites ; Dose-Response Relationship, Drug ; Drug Synergism ; *Drug-Related Side Effects and Adverse Reactions ; Models, Biological ; Receptors, Drug/*drug effects
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    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 16
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    Metkephamid, a systemically active analog of methionine enkephalin with potent opioid alpha-receptor activity (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1981-02-06
    Beschreibung: Metkephamid is an analog of methionine enkephalin that retains high affinity for the delta receptor and is a systemically active analgesic. Since it is at least 100 times more potent than morphine as an analgesic when placed directly into the lateral ventricles, and is 30 to 100 times more potent on the delta receptor and yet is roughly equipotent on the mu receptor in vitro, it is concluded that it probably produces analgesia by action on delta receptors as well as, or rather than, on mu receptors. It has less tendency to produce respiratory depression, tolerance, and physical dependence than standard analgesics, and it is presently undergoing clinical trial.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Frederickson, R C -- Smithwick, E L -- Shuman, R -- Bemis, K G -- New York, N.Y. -- Science. 1981 Feb 6;211(4482):603-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6256856" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Analgesics ; Animals ; Brain/*drug effects ; Dose-Response Relationship, Drug ; Endorphins/*pharmacology ; *Enkephalin, Methionine/*analogs & derivatives ; Enkephalins/*pharmacology ; Humans ; Kinetics ; Male ; Mice ; Rats ; Receptors, Opioid/*drug effects ; Structure-Activity Relationship ; Substance-Related Disorders/etiology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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