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  • 1
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    Hyperglycemia of diabetic rats decreased by a glucagon receptor antagonist (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-02-26
    Description: The glucagon analog [l-N alpha-trinitrophenylhistidine, 12-homoarginine]-glucagon (THG) was examined for its ability to lower blood glucose concentrations in rats made diabetic with streptozotocin. In vitro, THG is a potent antagonist of glucagon activation of the hepatic adenylate cyclase assay system. Intravenous bolus injections of THG caused rapid decreases (20 to 35 percent) of short duration in blood glucose. Continuous infusion of low concentrations of the inhibitor led to larger sustained decreases in blood glucose (30 to 65 percent). These studies demonstrate that a glucagon receptor antagonist can substantially reduce blood glucose levels in diabetic animals without addition of exogenous insulin.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Johnson, D G -- Goebel, C U -- Hruby, V J -- Bregman, M D -- Trivedi, D -- AM21085/AM/NIADDK NIH HHS/ -- AM25318/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1982 Feb 26;215(4536):1115-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6278587" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Diabetes Mellitus, Experimental/*drug therapy ; Glucagon/*analogs & derivatives/*antagonists & inhibitors/therapeutic use ; Hyperglycemia/*drug therapy ; Male ; Rats ; Receptors, Cell Surface/*drug effects ; Receptors, Glucagon ; Structure-Activity Relationship
    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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    Is there any chlorine monoxide in the stratosphere? (1982)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: A ground based search for the 856.50137/cm R(9.5) and for the 859.76765 R(12.5) transitions of stratospheric (Cl-35)O was made in the solar absorption mode using an infrared heterodyne spectrometer. Lines due to stratospheric HNO3 and tropospheric OCS were detected, at about 0.3% absorption levels. The expected lines of ClO in this same region were not detected, even though the optical depth of the ClO lines should be on the order of 0.2% using currently accepted ClO abundances. These infrared measurements suggest that stratospheric ClO is at least a factor of 7 less abundant than is indicated by indirect in situ fluorescence measurements, and the upper limit of 2.4x10 to the 13th power molecules/sq cm to the integrated column density of ClO is a factor of over 4 less than is indicted by microwave measurements. Results imply that the release of fluorocarbon precursors of ClO may be significantly less important for the destruction of stratospheric ozone than was previously thought.
    Keywords: GEOPHYSICS
    Type: NASA-TM-83939 , NAS 1.15:83939
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Local effects of partly-cloudy skies on solar and emitted radiation (1982)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: A computer automated data acquisition system for atmospheric emittance, and global solar, downwelled diffuse solar, and direct solar irradiances is discussed. Hourly-integrated global solar and atmospheric emitted radiances were measured continuously from February 1981 and hourly-integrated diffuse solar and direct solar irradiances were measured continuously from October 1981. One-minute integrated data are available for each of these components from February 1982. The results of the correlation of global insolation with fractional cloud cover for the first year's data set. A February data set, composed of one-minute integrated global insolation and direct solar irradiance, cloud cover fractions, meteorological data from nearby weather stations, and GOES East satellite radiometric data, was collected to test the theoretical model of satellite radiometric data correlation and develop the cloud dependence for the local measurement site.
    Keywords: GEOPHYSICS
    Type: NASA-CR-169272 , NAS 1.26:169272
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    NASA TECHNICAL REPORTS
  • 4
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    Ozone climatology series. Volume 1: Atlas of total ozone, April 1970 - December 1976 (1982)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Contours and gridded values are given for seven years of monthly mean total ozone data derived from observations with the Backscattered Ultraviolet instrument on Nimbus-4 for the Northern and Southern Hemispheres. The instrument, algorithm, uncertainties in derived ozone and systematic changes in the bias with respect to the international groundbased ozone network of Dobson instruments, are discussed.
    Keywords: GEOPHYSICS
    Type: NASA-RP-1098 , NAS 1.61:1098 , REPT-82F0128-VOL-1
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    NASA TECHNICAL REPORTS
  • 5
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    Complete amino acid sequence of urotensin I, a hypotensive and corticotropin-releasing neuropeptide from Catostomus (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-10-08
    Description: Urotensin I, purified from extracts of the urophysis of a teleost fish (Catostomus commersoni), exhibits potent hypotensive activity (mammals and birds) and corticotropin-releasing activity (both fish and mammals). The primary structure of this 41-residue peptide was determined to be H-Asn-Asp-Asp-Pro-Pro-Ile-Ser-Ile-Asp-Leu-Thr-Phe-His-Leu-Leu-Arg-Asn-Met-Ile-Glu - Met-Ala-Arg-Ile-Glu-Asn-Glu-Arg-Glu-Gln-Ala-Gly-Leu-Asn-Arg-Lys-Tyr-Leu-Asp-Glu -Val-NH2. Extraction with 0.1N HCl at 100 degrees C cleaves the amino-terminal tripeptide, yeilding a fully active analog, urotensin I(4-41). The amino acid sequence was confirmed by measuring the biological activity of synthetic urotensin I(4-41). Urotensin I exhibits a striking sequence homology with ovine corticotropin-releasing factor and with frog sauvagine. These three peptides exhibit similar activities in biological test systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lederis, K -- Letter, A -- McMaster, D -- Moore, G -- Schlesinger, D -- New York, N.Y. -- Science. 1982 Oct 8;218(4568):162-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6981844" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Corticotropin-Releasing Hormone ; Fishes ; Peptides/*isolation & purification ; Species Specificity ; Urotensins/*isolation & purification
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Significance of tissue myo-inositol concentrations in metabolic regulation in nerve (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-08-27
    Description: Approximately 25 percent of resting energy utilization in isolated nerve endoneurium is inhibited by medium containing defatted albumin and selectively restored by arachidonic acid but is unaffected by indomethacin or nordihydroguaiaretic acid. The same component of energy utilization is inhibited by small decreases in endoneurial myo-inositol, which decrease incorporation of carbon-14-labeled arachidonic acid into phosphatidylinositol. The fraction of the resting oxygen uptake inhibited by ouabain is decreased 40 to 50 percent by a reduced tissue myo-inositol concentration or by defatted albumin. Metabolic regulation by rapid, basal phosphatidylinositol turnover is dependent on the maintenance of normal tissue myoinositol concentrations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Simmons, D A -- Winegrad, A I -- Martin, D B -- T32 AMO7314/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1982 Aug 27;217(4562):848-51.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6285474" target="_blank"〉PubMed〈/a〉
    Keywords: Albumins/pharmacology ; Animals ; Arachidonic Acid ; Arachidonic Acids/pharmacology ; Catechols/pharmacology ; Indomethacin/pharmacology ; Inositol/*metabolism ; Linolenic Acids/pharmacology ; Masoprocol ; Ouabain/pharmacology ; Oxygen Consumption ; Palmitic Acids/pharmacology ; Peripheral Nerves/*metabolism ; Phosphatidylinositols/metabolism ; Rabbits ; gamma-Linolenic Acid
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    Lethal effect of phenothiazine neuroleptics on the pathogenic protozoan Leishmania donovani (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-07-23
    Description: Phenothiazine drugs, which are widely used for their antipsychotic, antianxiety, and antiemetic effects, have been found to have protozoacidal effects on the human pathogen Leishmania donovani. These compounds are lethal to both the extracellular stage of the organism, which is inoculated into humans by the sand fly, and the intracellular stage, which is found solely in human macrophages during established infection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pearson, R D -- Manian, A A -- Harcus, J L -- Hall, D -- Hewlett, E L -- New York, N.Y. -- Science. 1982 Jul 23;217(4557):369-71.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6124040" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antipsychotic Agents/*pharmacology/therapeutic use ; Chlorpromazine/pharmacology ; Cricetinae ; Humans ; Leishmania/*drug effects ; Leishmaniasis, Visceral/*drug therapy ; Macrophages/microbiology ; Mesocricetus
    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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    Asian bull elephants: Flehmen-like responses to extractable components in female elephant estrous urine (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-07-09
    Description: Flehmen-like responses (urine tests) are one of the characteristic behavioral reactions of male Asian elephants (Elephants maximus) to cow elephants in estrus. Components of the urine of estrous cow elephants were extracted with organic solvents and partially purified by chromatography and shown to evoke Flehmen-like responses when they were presented to adult bulls.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rasmussen, L E -- Schmidt, M J -- Henneous, R -- Groves, D -- Daves, G D Jr -- New York, N.Y. -- Science. 1982 Jul 9;217(4555):159-62.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7089549" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Elephants/anatomy & histology/*physiology ; Estrus Detection ; Female ; Male ; Pheromones/*urine ; Sex Attractants/isolation & purification/*urine ; *Sexual Behavior, Animal
    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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    Transmethylation of phosphatidylethanolamine: an initial event in embryonic chicken lens fiber cell differentiation (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-09-24
    Description: Agents that induce differentiation of lens epithelial cells into lens fiber cells in vitro transiently stimulate the transmethylation of phosphatidylethanolamine. Inhibition of transmethylation by 3-deazaadenosine results in a corresponding inhibition of the cell elongation that characterizes lens fiber formation, suggesting that phospholipid methylation plays an essential role in the differentiation of these cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zelenka, P S -- Beebe, D C -- Feagans, D E -- New York, N.Y. -- Science. 1982 Sep 24;217(4566):1265-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7112130" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Differentiation/drug effects ; Chick Embryo ; Lens, Crystalline/*cytology/metabolism ; Methylation ; Phosphatidylcholines/*biosynthesis ; Phosphatidylethanolamines/*metabolism ; Tubercidin/pharmacology
    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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  • 10
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    Saxitoxin binding sites in frog-myocardial cytosol (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-02-26
    Description: Cytosolic fractions of frog heart homogenates contain large amounts of a soluble, large molecular weight protein that binds the specific neurotoxin saxitoxin with the same high affinity as does the plasma membrane. Another neurotoxin, tetrodotoxin, which ordinarily is competitive with saxitoxin, does not displace saxitoxin from the cytosolic sites or from plasma membrane-enriched vesicular fractions even when its concentration exceeds that of saxitoxin by a factor of 1000. Thus, cytosolic sites are similar to membrane sites in this respect. The vesicular fraction accounts quantitatively for the amount of saxitoxin bound by whole ventricles, so that no appreciable losses seem to occur. Therefore, the cytosolic site probably is a membrane site precursor, although other possibilities cannot be ruled out. In any case, the occurrence of a soluble molecule closely related to the sodium channel provides opportunities for further study of the structure of the sodium channel.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Doyle, D D -- Wong, M -- Tanaka, J -- Barr, L -- New York, N.Y. -- Science. 1982 Feb 26;215(4536):1117-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6278588" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Membrane/metabolism ; Cytosol/metabolism ; Ion Channels/metabolism ; Myocardium/*metabolism ; Protein Binding ; Rana pipiens ; Saxitoxin/*metabolism
    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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