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  • Adult  (24)
  • Structure-Activity Relationship  (17)
  • American Association for the Advancement of Science (AAAS)  (41)
  • Annual Reviews
  • Nature Publishing Group
  • 1980-1984  (41)
  • 1935-1939
  • 1982  (41)
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  • American Association for the Advancement of Science (AAAS)  (41)
  • Annual Reviews
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  • 1980-1984  (41)
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  • 1
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    Micromolar affinity benzodiazepine receptors: identification and characterization in central nervous system (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-06-11
    Beschreibung: Receptors that selectively bind micromolar concentrations of benzodiazepines are present in rat brain membrane. These micromolar receptors exhibit saturable, stereospecific binding, and the potency of benzodiazepine binding to these receptors is correlated with the ability of the benzodiazepines to inhibit maximum electric shock-induced convulsions. Benzodiazepine receptors with nanomolar affinity differ from the micromolar receptors in their binding, kinetic, and pharmacologic characteristics. The micromolar receptors also bind phenytoin, a non-benzodiazepine anticonvulsant. These results provide evidence for a distinct class of clinically relevant benzodiazepine receptors that may regulate neuronal excitability and anticonvulsant activity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bowling, A C -- DeLorenzo, R J -- NS 1352/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1982 Jun 11;216(4551):1247-50.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6281893" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Benzodiazepines/*metabolism/pharmacology ; Benzodiazepinones/metabolism ; Brain/*metabolism ; Calmodulin/antagonists & inhibitors ; Diazepam/metabolism ; Kinetics ; Ligands ; Protein Kinase Inhibitors ; Rats ; Receptors, Drug/*metabolism ; Receptors, GABA-A ; Structure-Activity Relationship
    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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    Artificial enzymes (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-11-05
    Beschreibung: Simple chemical catalysts have been designed to achieve some desirable features of enzymes. These novel catalysts are not proteins, but they may incorporate the typical enzyme catalytic groups and they achieve selectivity in their reactions by use of geometric control, as do enzymes. Catalysts that carry out geometrically controlled chlorinations of aromatic rings and steroids have been constructed. Other catalysts achieve the selective synthesis of amino acids, and still others imitate ribonuclease in detailed mechanism and hydrolyze RNA. Optimization of geometries has led to a rate acceleration of over 10(8) in one instance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Breslow, R -- New York, N.Y. -- Science. 1982 Nov 5;218(4572):532-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7123255" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Catalysis ; Cyclodextrins ; *Enzymes ; Kinetics ; Models, Chemical ; Ribonucleases ; Structure-Activity Relationship ; Substrate Specificity ; Transaminases
    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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    Stereoisomers of N-allylnormetazocine: phencyclidine-like behavioral effects in squirrel monkeys and rats (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-01-08
    Beschreibung: (+/-)-N-Allylnormetazocine is a benzomorphan opioid with psychotomimetic effects. The pure stereoisomers of this compound, as well as the racemic mixture, were compared to phencyclidine for their behavioral effects on squirrel monkeys and rats trained to discriminate phencyclidine from saline. Dose-response determinations were made for responses to phencyclidine, to a racemic mixture of N-allylnormetazocine, and to the pure levo and dextro isomers of N-allylnormetazocine. In both rats and monkeys, the dextro isomer and the racemic mixture produced dose-dependent responses appropriate for phencyclidine; the levo isomer did not produce the responses appropriate for phencyclidine at any of the doses tested. In both species, the levo isomer was more potent than the dextro isomer in decreasing the rate of responding. Thus racemic N-allylnormetazocine is a mixture of compounds that produce different behavioral effects.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brady, K T -- Balster, R L -- May, E L -- DA-00490/DA/NIDA NIH HHS/ -- DA-01442/DA/NIDA NIH HHS/ -- New York, N.Y. -- Science. 1982 Jan 8;215(4529):178-80.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6274022" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Behavior, Animal/*drug effects ; Male ; Naloxone/pharmacology ; Phenazocine/*analogs & derivatives/pharmacology ; Phencyclidine/pharmacology ; Rats ; Rats, Inbred Strains ; Receptors, Opioid/drug effects ; Saimiri ; Stereoisomerism ; Structure-Activity Relationship
    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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    Alpha-substituted gamma-butyrolactones: new class of anticonvulsant drugs (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-09-10
    Beschreibung: Alkyl-Substituted gamma-butyrolactones were synthesized and tested for their convulsant and anticonvulsant actions in mice and guinea pigs. The alpha-substituted compounds, alpha, alpha-dimethyl-, and alpha-ethyl-alpha-methyl-gamma-butyrolactone were anticonvulsant compounds with a spectrum of activity similar to that of ethosuximide. In contrast, beta-substituted compounds were convulsant agents similar to picrotoxinin. The alpha-substituted-gama-butyrolactones represent a new class of anticonvulsant drug with experimental and clinical potential.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Klunk, W E -- McKeon, A -- Covey, D F -- Ferrendelli, J A -- GM-07200/GM/NIGMS NIH HHS/ -- GM-24483/GM/NIGMS NIH HHS/ -- NS-14834/NS/NINDS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1982 Sep 10;217(4564):1040-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6810462" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *4-Butyrolactone/analogs & derivatives/*therapeutic use/toxicity ; Animals ; *Anticonvulsants ; Chemical Phenomena ; Chemistry ; Convulsants ; Drug Evaluation, Preclinical ; Electroencephalography ; Epilepsy, Absence/drug therapy ; Ethosuximide/pharmacology ; *Furans/*therapeutic use ; Guinea Pigs ; Mice ; Structure-Activity Relationship ; Trimethadione/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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  • 5
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    Fetal hemoglobin genes turned on in adults (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-12-24
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G -- New York, N.Y. -- Science. 1982 Dec 24;218(4579):1295-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6183747" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adult ; Anemia, Sickle Cell/therapy ; Azacitidine/therapeutic use ; Fetal Hemoglobin/biosynthesis/*genetics ; Hemoglobin, Sickle/biosynthesis ; Humans ; Male ; Thalassemia/therapy
    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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    Purinergic regulation of food intake (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-07-02
    Beschreibung: Inosine peripherally administered to rats markedly suppressed spontaneous food intake and food intake induced by diazepam, muscimol, insulin, and food deprivation. The purines 2-deoxyguanosine and 2-deoxyinosine also suppressed food deprivation-induced feeding, whereas 7-methylinosine, which does not bind to the benzodiazepine binding site in vitro, had no effect on food intake when compared with controls. These results suggest that purines may represent endogenous substances that regulate food intake through interactions with the benzodiazepine receptor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Levine, A S -- Morley, J E -- New York, N.Y. -- Science. 1982 Jul 2;217(4554):77-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7046046" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Appetite/*drug effects ; Deoxyguanosine/pharmacology ; Diazepam/pharmacology ; Eating/*drug effects ; Food Deprivation ; Inosine/analogs & derivatives/pharmacology ; Insulin/pharmacology ; Male ; Muscimol/pharmacology ; Purines/*pharmacology ; Rats ; Rats, Inbred Strains ; Structure-Activity Relationship
    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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    Spectral character of sunlight modulates photosynthesis of previtamin D3 and its photoisomers in human skin (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-05-28
    Beschreibung: The photosynthesis of previtamin D3 from 7-dehydrocholesterol in human skin was determined after exposure to narrow-band radiation or simulated solar radiation. The optimum wavelengths for the production of previtamin D3 were determined to be between 295 and 300 nanometers. When human skin was exposed to 295-nanometer radiation, up to 65 percent of the original 7-dehydrocholesterol content was converted to previtamin D3. In comparison, when adjacent skin was exposed to simulated solar radiation, the maximum formation of previtamin D3 was about 20 percent. Major differences in the formation of lumisterol3, and tachysterol3 from previtamin D3 were also observed. It is concluded that the spectral character of natural sunlight has a profound effect on the photochemistry of 7-dehydrocholesterol in human skin.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉MacLaughlin, J A -- Anderson, R R -- Holick, M F -- AM 27334/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1982 May 28;216(4549):1001-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6281884" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Cholecalciferol/*biosynthesis/metabolism ; Dehydrocholesterols/radiation effects ; Ergosterol/metabolism ; Humans ; In Vitro Techniques ; Isomerism ; Photochemistry ; Skin/*metabolism ; Spectrum Analysis ; Structure-Activity Relationship ; Ultraviolet Rays
    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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    Oxytocin induces maternal behavior in virgin female rats (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-05-07
    Beschreibung: Intracerebroventricular administration of oxytocin to virgin female rats that had been ovariectomized and primed with estrogen 48 hours previously induced a rapid onset of full maternal behavior. The maternal behavior persisted and its incidence was dose-related. Tocinoic acid, the ring structure of oxytocin, also rapidly induced the onset of persistent, full maternal behavior. Arginine vasopressin induced persistent maternal behavior, but this behavior had a later onset. Prostaglandin F2 alpha induced strong partial maternal behavior, which showed early onset but did not persist. Many other peptides, ovarian steroids, and prostaglandin E2 were no more effective than saline. These findings suggest that the release of oxytocin and prostaglandin F2 alpha during labor may promote maternal behavior in rats.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pedersen, C A -- Ascher, J A -- Monroe, Y L -- Prange, A J Jr -- MH-22536/MH/NIMH NIH HHS/ -- MH-32316/MH/NIMH NIH HHS/ -- MH-34933/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1982 May 7;216(4546):648-50.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7071605" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Arginine Vasopressin/pharmacology ; Brain/physiology ; Female ; Injections, Intraventricular ; *Maternal Behavior ; Oxytocin/administration & dosage/*pharmacology ; Rats ; Structure-Activity Relationship
    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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    Manipulation of event-related potential manifestations of information processing stages (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-11-26
    Beschreibung: The timing of two event-related potential components was differentially affected by two experimental variables. The earlier component (NA) was affected by degradation of the stimuli and the later component (N2) by the nature of a classification task. The results support the hypothesis that NA and N2 reflect sequential stages of information processing, namely, pattern recognition and stimulus classification.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ritter, W -- Simson, R -- Vaughan, H G Jr -- Macht, M -- HD 10804/HD/NICHD NIH HHS/ -- IF32 AGO-5193/AG/NIA NIH HHS/ -- MH 06723/MH/NIMH NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1982 Nov 26;218(4575):909-11.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7134983" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Action Potentials ; Adult ; Brain/*physiology ; Brain Mapping ; Cognition/*physiology ; Discrimination (Psychology)/physiology ; Evoked Potentials ; Humans ; Information Theory ; Perception/*physiology ; Time Factors
    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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    Subperiosteal expansion and cortical remodeling of the human femur and tibia with aging (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-09-03
    Beschreibung: Increases with aging in subperiosteal dimensions and second moments of area (measures of bending and torsional rigidity) in femoral and tibial cross sections are documented in an archeological sample from the American Southwest. Significant differences between cross-sectional sites and between sexes in the pattern of cortical remodeling with age are also present. These differences appear to be related to variations in the stress or strain levels in different regions of the femur and tibia which result from in vivo mechanical loadings of the lower limb.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ruff, C B -- Hayes, W C -- AM00749/AM/NIADDK NIH HHS/ -- AM26740/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1982 Sep 3;217(4563):945-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7112107" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adult ; *Aging ; Bone Development ; Female ; Femur/*physiology ; Fractures, Bone/etiology ; Growth ; Humans ; Male ; Middle Aged ; Periosteum/*physiology ; Physical Exertion ; Sex Characteristics ; Stress, Mechanical ; Tibia/*physiology
    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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    Wound tissue can utilize a polymeric template to synthesize a functional extension of skin (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-01-08
    Beschreibung: Prompt and long-term closure of full-thickness skin wounds is guinea pigs and humans is achieved by applying a bilayer polymeric membrane. The membrane comprises a top layer of a silicone elastomer and a bottom layer of a porous cross-linked network of collagen and glycosaminoglycan. The bottom layer can be seeded with a small number of autologous basal cells before grafting. No immunosuppression is used and infection, exudation, and rejection are absent. Host tissue utilizes the sterile membrane as a culture medium to synthesize neoepidermal and neodermal tissue. A functional extension of skin over the entire wound area is formed in about 4 weeks.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yannas, I V -- Burke, J F -- Orgill, D P -- Skrabut, E M -- GM 21700/GM/NIGMS NIH HHS/ -- GM 23946/GM/NIGMS NIH HHS/ -- HL 14322/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1982 Jan 8;215(4529):174-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7031899" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adolescent ; Adult ; Animals ; Burns/*therapy ; Cells, Cultured ; Child ; Child, Preschool ; Collagen/therapeutic use ; Female ; Glycosaminoglycans/therapeutic use ; Guinea Pigs ; Humans ; Male ; Middle Aged ; Silicone Elastomers/therapeutic use ; *Skin Transplantation ; *Wound Healing
    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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    Translational efficiency of transfer RNA's: uses of an extended anticodon (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-11-12
    Beschreibung: Transfer RNA's are probably very strongly selected for translational efficiency. In this article, the argument is presented that the coding performance of the triplet anticodon is enhanced by selection of a matching anticodon loop and stem sequence. the anticodon plus these nearby sequence features (the extended anticodon) therefore contains more coding information than the anticodon alone and can perform more efficiently and accurately at the ribosome. This idea successfully accounts for the relative efficiencies of many transfer RNA's.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yarus, M -- New York, N.Y. -- Science. 1982 Nov 12;218(4573):646-52.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6753149" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Base Sequence ; Escherichia coli/genetics ; Kinetics ; Nucleic Acid Conformation ; *Protein Biosynthesis ; RNA, Transfer/*genetics ; Ribosomes/metabolism ; Structure-Activity Relationship ; Suppression, Genetic
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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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  • 13
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    Rotating shift work schedules that disrupt sleep are improved by applying circadian principles (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-07-30
    Beschreibung: Workers on rotating shifts dislike those aspects of their work schedules that violate circadian sleep-wake cycle physiology. Work schedule satisfaction, subjective health estimates, personnel turnover, and worker productivity improve when schedules are introduced that are designed to incorporate circadian principles.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Czeisler, C A -- Moore-Ede, M C -- Coleman, R H -- New York, N.Y. -- Science. 1982 Jul 30;217(4558):460-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7089576" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Activity Cycles ; Adult ; Aged ; *Circadian Rhythm ; Health ; Humans ; Job Satisfaction ; Male ; Middle Aged ; *Sleep ; *Work
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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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    Decreased insulin receptors but normal glucose metabolism in Duchenne muscular dystrophy (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-04-16
    Beschreibung: Compared to matched controls, 17 patients with Duchenne muscular dystrophy showed decreased insulin binding to monocytes due to decreased receptor concentration. These patients showed no signs of altered glucose metabolism and retrospective analysis of the clinical records of a further 56 such patients revealed no modification in carbohydrate metabolism. These data suggest that reduced insulin receptor number does not produce overt modifications of glucose metabolism in Duchenne muscular dystrophy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉DePirro, R -- Lauro, R -- Testa, I -- Ferretti, I -- De Martinis, C -- Dellatonio, R -- New York, N.Y. -- Science. 1982 Apr 16;216(4543):311-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7063889" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adolescent ; Adult ; Cell Membrane/metabolism ; Child ; Glucose/*metabolism ; Humans ; Monocytes/metabolism ; Muscular Dystrophies/*metabolism ; Receptor, Insulin/*metabolism
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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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    Odor quality: semantically generated multidimensional profiles are stable (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-11-19
    Beschreibung: Odors of ten compounds were characterized by approximately 150 subjects who used a list of 146 descriptors. Duplicate profiles correlated highly (P less than .001) and consistently higher than profiles of different odors. Profiles also agreed with those obtained previously. Thus, profiles based on combined responses of many subjects are stable constructs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dravnieks, A -- New York, N.Y. -- Science. 1982 Nov 19;218(4574):799-801.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7134974" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Alcohols ; Anisoles ; Hexanols ; Humans ; *Odors ; Pyridines ; *Smell ; Structure-Activity Relationship
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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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  • 16
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    Lipofuscin: resolution of discrepant fluorescence data (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-05-14
    Beschreibung: Lipofuscin granules (age pigments) emit yellow light under ultraviolet excitation in the fluorescence microscope. The reported blue emission maximum of extracts of lipofuscin-laden cells may result from instrumental bias. The major fluorescent components that accumulate with age in these lysosomal residual bodies of human retinal pigment epithelium are yellow-emitting fluorophores. Different age-related fluorophores, which do emit blue light, are derived from other intracellular sources. A reevaluation of the connection between blue-emitting lipid peroxidation products and the age-related lipofuscin granules of classical pathology is necessary.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Eldred, G E -- Miller, G V -- Stark, W S -- Feeney-Burns, L -- EY 03274/EY/NEI NIH HHS/ -- EY 03408/EY/NEI NIH HHS/ -- EY 05456/EY/NEI NIH HHS/ -- New York, N.Y. -- Science. 1982 May 14;216(4547):757-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7079738" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adult ; Age Factors ; Cytoplasmic Granules ; Humans ; *Lipofuscin ; Lysosomes/analysis ; Pigment Epithelium of Eye/analysis/ultrastructure ; *Pigments, Biological ; Spectrometry, Fluorescence ; Spectrum Analysis
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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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  • 17
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    Spinal sympathetic neurons: possible sites of opiate-withdrawal suppression by clonidine (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-03-26
    Beschreibung: Morphine, methadone, meperidine, fentanyl, and clonidine rapidly depressed transmission through sympathetic preganglionic neurons in cats with the spinal cord transected. Naloxone promptly antagonized this effect of the opiates but not that of clonidine which was reversed by alpha 2-adrenergic receptor antagonists. The independent depression of preganglionic neurons by clonidine may contribute to the ability of this drug to depress the symptoms of opiate withdrawal that are characterized by sympathetic hyperactivity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Franz, D N -- Hare, D B -- McCloskey, K L -- GM-07579/GM/NIGMS NIH HHS/ -- HL-24085/HL/NHLBI NIH HHS/ -- RR-05428/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1982 Mar 26;215(4540):1643-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6280276" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cats ; Clonidine/*pharmacology/therapeutic use ; Evoked Potentials/drug effects ; Humans ; Narcotics/pharmacology ; Receptors, Drug/drug effects ; Reflex/drug effects ; Spinal Cord/cytology ; Structure-Activity Relationship ; Substance Withdrawal Syndrome/*drug therapy ; Sympathetic Nervous System/*drug effects ; Synaptic Transmission/*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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  • 18
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    A new treatment for burn victims (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-08-06
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maugh, T H 2nd -- New York, N.Y. -- Science. 1982 Aug 6;217(4559):522.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7089578" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adolescent ; Adult ; *Bandages ; *Biological Dressings ; Burns/*therapy ; Cells, Cultured ; Child ; Child, Preschool ; Epidermis/cytology ; Humans ; Surgical Flaps ; Wound Healing
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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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  • 19
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    A new marker for diabetes (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-02-05
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maugh, T H 2nd -- New York, N.Y. -- Science. 1982 Feb 5;215(4533):651.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7058330" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adipose Tissue/pathology ; Adult ; Diabetes Mellitus/*pathology ; Female ; Humans ; Male ; *Obesity ; Sex Factors
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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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  • 20
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    Calcium and age in fibroblasts from control subjects and patients with cystic fibrosis (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-04-23
    Beschreibung: Intracellular calcium increases significantly as human fibroblasts age in culture. The calcium increase occurs 5 to 6 weeks (passages) earlier and is significantly greater in fibroblasts from subjects with cystic fibrosis in comparison with cells from control subjects. Intracellular calcium, which is thought to be a pathogenetic factor in cystic fibrosis, may also be a meaningful marker in cell aging.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shapiro, B L -- Lam, L F -- AG-02114/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 1982 Apr 23;216(4544):417-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7071590" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adolescent ; Adult ; Calcium/*metabolism ; *Cell Survival ; Cells, Cultured ; Child ; Cystic Fibrosis/*metabolism/pathology ; Female ; Fibroblasts ; Humans ; Infant ; Male
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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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  • 21
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    Luteal phase defects induced by an agonist of luteinizing hormone-releasing factor: a model for fertility control (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-01-08
    Beschreibung: Subcutaneous injection of 50 micrograms of a luteinizing hormone-releasing factor agonist (LRF agonist) for three successive days at the time of menstruation in normal cycling women induces a shortened luteal phase with suboptimal concentrations of circulating estradiol and progesterone. This luteal phase defect follows a reduced concentration of follicle-stimulating hormone during the follicular phase and a resulting inadequate follicular maturation. Since a short luteal phase is associated with an endometrium not conductive to implantation, administration of the LRF agonist at the onset of menstrual cycle may prove to be a practical and novel approach to fertility control.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sheehan, K L -- Casper, R F -- Yen, S S -- HD-12303/HD/NICHD NIH HHS/ -- N01HD-92842/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1982 Jan 8;215(4529):170-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6797068" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adult ; *Contraception ; Estradiol/blood ; Female ; Follicle Stimulating Hormone/blood/metabolism ; Gonadotropin-Releasing Hormone/*analogs & derivatives/pharmacology ; Humans ; Luteinizing Hormone/blood ; Menstruation/drug effects ; Progesterone/blood ; *Triptorelin Pamoate/*analogs & derivatives
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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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  • 22
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    Diazepam impairs lateral position control in highway driving (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-07-02
    Beschreibung: Nine expert drivers operated an instrumented vehicle in tests over a highway at night after being treated with diazepam (5 and 10 milligrams), a placebo, and nothing. They reacted to 10 milligrams of diazepam with increased lateral position variability. Potentially dangerous impairment was inferred from the reactions of some subjects.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉O'Hanlon, J F -- Haak, T W -- Blaauw, G J -- Riemersma, J B -- New York, N.Y. -- Science. 1982 Jul 2;217(4554):79-81.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7089544" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adult ; *Automobile Driving ; Diazepam/*pharmacology ; Dose-Response Relationship, Drug ; Double-Blind Method ; Functional Laterality ; Humans ; Male ; Motor Activity/*drug effects ; Placebos
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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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  • 23
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    DNA conformation, dynamics, and interactions in solution (1982)
    American Association for the Advancement of Science (AAAS)
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    Publikationsdatum: 1982-05-07
    Beschreibung: The conformation and dynamics of the d(CGCGAATTCGCG) duplex, its analogs containing mismatched base pairs and helix interruptions, and its complexes with actinomycin and Netropsin, bound separately and simultaneously, have been investigated by nuclear magnetic resonance spectroscopy in aqueous solution. Structural information has been deduced from chemical shift and nuclear Overhauser effect parameters, while the kinetics have been probed from line width and saturation recovery experiments on proton and phosphorus markers at the individual base pair level. These studies lead to an improved understanding of the role of nucleic acid sequence on the structure, flexibility, and conformational interconversions in the duplex state. The nuclear magnetic resonance measurements readily identify helix modification and antibiotic binding sites on the nucleic acid and estimate the extent to which the observed conformational and dynamic perturbations are transmitted to adjacent base pair regions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Patel, D J -- Pardi, A -- Itakura, K -- New York, N.Y. -- Science. 1982 May 7;216(4546):581-90.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6280281" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Base Sequence ; Dna ; Dactinomycin ; Hydrogen Bonding ; Magnetic Resonance Spectroscopy ; Motion ; Netropsin ; *Nucleic Acid Conformation ; Oligodeoxyribonucleotides ; Protons ; Structure-Activity Relationship ; Temperature
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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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  • 24
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    Familial renal cell carcinoma with a 3;11 chromosome translocation limited to tumor cells (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-09-03
    Beschreibung: Cytogenic studies were performed on the direct chromosome preparations of the renal cell carcinoma cells and the cultured peripheral blood lymphocytes of a patient with familial renal cell carcinoma. The results revealed a specific, acquired translocations (3p;11p) present in the majority of metaphases of the tumor, indicating that the development of renal cell carcinoma is associated with a deletion in the proximal end of 3p. Renal cell carcinoma is thus the third example--the first two being retinoblastoma and Wilms' tumor--of a chromosomal deletion occurring germinally or somatically in association with a specific tumor. This finding adds further support to the existence of specific human cancer genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pathak, S -- Strong, L C -- Ferrell, R E -- Trindade, A -- CA 27925/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1982 Sep 3;217(4563):939-41.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7112106" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adenocarcinoma/*genetics ; Adult ; Chromosome Banding ; Chromosomes, Human, 1-3/*ultrastructure ; Chromosomes, Human, 6-12 and X/*ultrastructure ; Female ; Humans ; Karyotyping ; Kidney Neoplasms/*genetics ; Lymphocytes/ultrastructure ; Male ; Pedigree ; *Translocation, Genetic
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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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  • 25
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    (+)-Amphetamine binding to rat hypothalamus: relation to anorexic potency for phenylethylamines (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-10-29
    Beschreibung: Saturable and stereospecific binding sites for (+)-[3H]amphetamine were demonstrated in membrane preparations from rat brain. The density of these binding sites varies among brain regions and is highest in the hypothalamus and brainstem. Specific (+)-[3H]amphetamine binding in hypothalamus is largely confined to synaptosomal membranes, rapidly reversible, and sensitive to both heat and proteolytic enzymes. Scatchard analysis of the equilibrium binding data revealed two distinct sites with apparent affinity constants of 93 and 300 nanomoles per liter, respectively. The effects of various psychotropic drugs as well as a number of putative neurotransmitters and related agonists and antagonists in displacing specific (+)-[3H]amphetamine binding demonstrate that these binding sites are not associated with any previously described neurotransmitter or drug receptors, but are specific for amphetamine and related phenylethylamine derivatives. Furthermore, the relative affinities of a series of phenylethylamine derivatives for (+)-[3H]amphetamine binding sites in hypothalamic membranes is highly correlated to their potencies as anorexic agents. These results suggest the presence of specific receptor sites in hypothalamus that mediate the anorexic activity of amphetamine and related drugs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Paul, S M -- Hulihan-Giblin, B -- Skolnick, P -- New York, N.Y. -- Science. 1982 Oct 29;218(4571):487-90.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7123250" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Anorexia/physiopathology ; Appetite Depressants/*pharmacology ; Cell Membrane/metabolism ; Dextroamphetamine/*metabolism ; Hypothalamus/drug effects/*metabolism/physiology ; Male ; Phenethylamines/metabolism ; Rats ; Receptors, Drug/*metabolism ; Structure-Activity Relationship
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 26
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    Use of "Super-plus" tampons discouraged (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-06-18
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sun, M -- New York, N.Y. -- Science. 1982 Jun 18;216(4552):1300.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6281894" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adult ; Centers for Disease Control and Prevention (U.S.) ; Female ; Humans ; *Menstruation ; Shock, Septic/*etiology ; Tampons, Surgical/*adverse effects ; United States
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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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  • 27
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    Nonopiate effects of dynorphin and des-Tyr-dynorphin (1982)
    American Association for the Advancement of Science (AAAS)
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    Publikationsdatum: 1982-12-10
    Beschreibung: Intracerebroventricular administration of dynorphin produced potent and long-lasting effects on motor function and the electroencephalogram in rats. In addition, local iontophoretic or pressure ejection of dynorphin consistently inhibited hippocampal unit activity. None of these effects were significantly affected by naloxone even at high doses. Moreover, a fragment of dynorphin that failed to displace any of a number of tritiated narcotics from rat brain homogenates produced similar effects on these physiological measures in vivo. On the basis of a variety of criteria for "opiate action," the results suggest that a second biologically active site within the dynorphin sequence is capable of quite potent but nonopiate effects.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Walker, J M -- Moises, H C -- Coy, D H -- Baldrighi, G -- Akil, H -- 1F32DA04183/DA/NIDA NIH HHS/ -- DA02265/DA/NIDA NIH HHS/ -- New York, N.Y. -- Science. 1982 Dec 10;218(4577):1136-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6128791" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Action Potentials ; Amino Acid Sequence ; Animals ; Dynorphins ; Endorphins/*physiology ; Hippocampus/*physiology ; Male ; Pain/*physiopathology ; Rats ; Structure-Activity Relationship
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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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  • 28
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    Bronchoconstrictor effects of leukotriene C in humans (1982)
    American Association for the Advancement of Science (AAAS)
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    Publikationsdatum: 1982-04-09
    Beschreibung: Maximum expiratory flow rate at 30 percent of vital capacity above residual volume served as an index of airway obstruction in comparing the effects of leukotriene C and histamine administered by aerosol to five normal persons. Leukotriene C was 600 to 9500 times more potent than histamine on a molar basis in producing an equivalent decrement in the residual volume. The leukotriene C response was slow in onset and prolonged, reminiscent of the effects of aerosol allergen challenge in asthmatic allergic subjects.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weiss, J W -- Drazen, J M -- Coles, N -- McFadden, E R Jr -- Weller, P F -- Corey, E J -- Lewis, R A -- Austen, K F -- AI-00399/AI/NIAID NIH HHS/ -- AI-07722/AI/NIAID NIH HHS/ -- AI-10356/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1982 Apr 9;216(4542):196-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7063880" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adult ; Airway Resistance/*drug effects ; Bronchi/*drug effects ; Dose-Response Relationship, Drug ; Female ; Histamine/pharmacology ; Humans ; Male ; Middle Aged ; Prostaglandins F/pharmacology ; SRS-A/*pharmacology ; Time Factors
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 29
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    Hyperglycemia of diabetic rats decreased by a glucagon receptor antagonist (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-02-26
    Beschreibung: 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〉
    Schlagwort(e): 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
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 30
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    Simulating amnesic symptoms in normal subjects (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-12-17
    Beschreibung: Patients with organic brain damage resulting in anterograde amnesia cannot recall a list of words, but when given the first three letters of each word, they complete these word stems with words from the list. We simulated this phenomenon in normal subjects who examined the list words for vowels while ignoring their semantic component. The subjects produced the list words when completing the word stems although they could not recall the words.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Graf, P -- Mandler, G -- Haden, P E -- New York, N.Y. -- Science. 1982 Dec 17;218(4578):1243-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7146909" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adult ; Amnesia/*physiopathology ; Humans ; Memory/*physiology ; Mental Recall/physiology ; Models, Biological
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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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  • 31
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    N-acetylation regulates the behavioral activity of alpha-melanotropin in a multineurotransmitter neuron (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-02-26
    Beschreibung: A multineurotransmitter neuronal system that synthesizes and secretes both acetylated and deacetylated forms of alpha-melantropin and beta-endorphin is present in rat and human brain. The N-acetylated from of alpha-melanotropin had more potent behavioral effects than the deacetylated alpha-melanotropin. In the case of beta-endorphin, however, the deacetylated form has been shown to be more potent than the acetylated form. Enzymatic N-acetylation appears to be an important regulatory process for modulating the behavioral activity of peptides secreted from the opiomelanotropinergic multineurotransmitter neuron.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉O'Donohye, T L -- Handelmann, G E -- Miller, R L -- Jacobowitz, D M -- New York, N.Y. -- Science. 1982 Feb 26;215(4536):1125-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7063845" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acetylation ; Animals ; Behavior, Animal/drug effects ; Brain/*metabolism ; Humans ; Melanocyte-Stimulating Hormones/*metabolism/pharmacology ; Neurons/metabolism ; Rats ; Structure-Activity Relationship
    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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  • 32
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    Depo-Provera debate revs up at FDA (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-07-30
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sun, M -- New York, N.Y. -- Science. 1982 Jul 30;217(4558):424-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6211767" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adult ; Animals ; Carcinogens ; Contraceptive Agents, Female ; Dogs ; Drug Evaluation ; Drug Evaluation, Preclinical ; Female ; Humans ; International Agencies ; Medroxyprogesterone/adverse effects/*analogs & derivatives/pharmacology ; Medroxyprogesterone Acetate ; Risk ; United States ; United States Food and Drug Administration
    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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  • 33
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    Excretion of beta-phenethylamine is elevated in humans after profound stress (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-02-26
    Beschreibung: The urinary excretion rate of the endogenous, amphetamine-like substance beta-phenethylamine was markedly elevated in human subjects in association with an initial parachuting experience. The increases were delayed in most subjects and were not correlated with changes in urinary pH or creatinine excretion. The data suggest a stress-related role for beta-phenethylamine.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Paulos, M A -- Tessel, R E -- DA-01614/DA/NIDA NIH HHS/ -- GM-27430/GM/NIGMS NIH HHS/ -- RR-05606/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1982 Feb 26;215(4536):1127-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7063846" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adolescent ; Adult ; *Aerospace Medicine ; Creatinine/urine ; Female ; Humans ; Male ; Phenethylamines/*urine ; Stress, Physiological/*urine ; Time Factors
    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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  • 34
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    A 7-hydroxymethyl sulfate ester as an active metabolite of 7,12-dimethylbenz[alpha]anthracene (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-01-22
    Beschreibung: 7-Hydroxymethyl-12-methylbenz[alpha]anthracene (7-HMBA), a carcinogenic major metabolite of 7,12-dimethylbenz[alpha]anthracene (DMBA) in liver, was transformed by liver cytosolic sulfotransferase to reactive 7-HMBA sulfate, which is mutagenic toward Salmonella typhimurium strain TA98. The mutagenicity of 7-HMBA in the presence of hepatic sulfotransferase was much higher than that of DMBA or 7-HMBA in the presence of hepatic monooxygenase.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Watabe, T -- Ishizuka, T -- Isobe, M -- Ozawa, N -- New York, N.Y. -- Science. 1982 Jan 22;215(4531):403-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6800033" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): 9,10-Dimethyl-1,2-benzanthracene/analogs & derivatives/*metabolism/pharmacology ; Benz(a)Anthracenes/*metabolism ; Biotransformation ; Mutagenicity Tests ; *Mutagens ; Salmonella typhimurium/drug effects ; Structure-Activity Relationship ; Sulfuric Acids
    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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  • 35
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    The cholinergic hypothesis of geriatric memory dysfunction (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-07-30
    Beschreibung: Biochemical, electrophysiological, and pharmacological evidence supporting a role for cholinergic dysfunction in age-related memory disturbances is critically reviewed. An attempt has been made to identify pseudoissues, resolve certain controversies, and clarify misconceptions that have occurred in the literature. Significant cholinergic dysfunctions occur in the aged and demented central nervous system, relationships between these changes and loss of memory exist, similar memory deficits can be artificially induced by blocking cholinergic mechanisms in young subjects, and under certain tightly controlled conditions reliable memory improvements in aged subjects can be achieved after cholinergic stimulation. Conventional attempts to reduce memory impairments in clinical trials hav not been therapeutically successful, however. Possible explanations for these disappointments are given and directions for future laboratory and clinical studies are suggested.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bartus, R T -- Dean, R L 3rd -- Beer, B -- Lippa, A S -- New York, N.Y. -- Science. 1982 Jul 30;217(4558):408-14.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7046051" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acetylcholine/metabolism ; Adult ; Aged ; Aging ; Alzheimer Disease/physiopathology ; Animals ; Brain Chemistry ; Choline/metabolism ; Choline O-Acetyltransferase/metabolism ; Cognition ; Forecasting ; Humans ; Memory/drug effects ; Memory Disorders/*physiopathology ; Mice ; *Models, Neurological ; Parasympathetic Nervous System/*physiopathology ; Parasympathomimetics/pharmacology ; Phosphatidylcholines/metabolism ; Rats ; Receptors, Muscarinic/metabolism
    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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  • 36
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    Sex and handedness differences in cerebral blood flow during rest and cognitive activity (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-08-13
    Beschreibung: Cognitive activity resulted in increased flow of blood to the cerebral hemispheres. The increase was greater to the left hemisphere for a verbal task and greater to the right hemisphere for a spatial task. The direction and degree of hemispheric flow asymmetry were influenced by sex and handedness, females having a higher rate of blood flow per unit weight of brain, and females and left-handers having a greater percentage of fast-clearing tissue, presumably gray matter.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gur, R C -- Gur, R E -- Obrist, W D -- Hungerbuhler, J P -- Younkin, D -- Rosen, A D -- Skolnick, B E -- Reivich, M -- MH 30456/MH/NIMH NIH HHS/ -- NS-10939-09/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1982 Aug 13;217(4560):659-61.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7089587" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adolescent ; Adult ; Brain/metabolism/*physiology ; *Cerebrovascular Circulation ; *Cognition ; Female ; *Functional Laterality ; Humans ; Male ; Metabolic Clearance Rate ; Rest ; *Sex Characteristics
    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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  • 37
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    Reduced sympathetic nervous system responsivity associated with the relaxation response (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-01-08
    Beschreibung: Sympathetic nervous system activity was assessed in experimental and control subjects who were exposed to graded orthostatic and isometric stress during monthly hospital visits. After the first session, the experimental subjects practiced a technique that elicited the relaxation response. Their concentrations of plasma norepinephrine during subsequent graded stresses were significantly higher. No such changes were noted in the control group. These results were than replicated in the control group in a crossover experiment. The groups did not differ in their heart rate and blood pressure responses. These observations are consistent with reduced norepinephrine end-organ responsivity after regular elicitation of the relaxation response.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hoffman, J W -- Benson, H -- Arns, P A -- Stainbrook, G L -- Landsberg, G L -- Young, J B -- Gill, A -- HL-07374/HL/NHLBI NIH HHS/ -- HL-22727/HL/NHLBI NIH HHS/ -- HL-24084/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1982 Jan 8;215(4529):190-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7031901" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adult ; Blood Pressure ; Female ; Heart Rate ; Humans ; Male ; *Muscle Contraction ; *Muscle Relaxation ; Norepinephrine/blood ; *Relaxation Therapy ; Stress, Physiological/physiopathology ; Sympathetic Nervous System/*physiology
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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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  • 38
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    Monkey and human pictorial memory scanning (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-06-18
    Beschreibung: A rhesus monkey accurately recognized pictures in a Sternberg memory scanning experiment. When the monkey was tested with pictures that were reused during the same session, the monkey's performance was nearly identical to that of a human subject; this result demonstrates the monkeys are capable of some of the short-term retrieval mechanisms of humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sands, S F -- Wright, A A -- EY-01256/EY/NEI NIH HHS/ -- MH35202/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1982 Jun 18;216(4552):1333-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7079768" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adult ; Animals ; Female ; Humans ; Macaca mulatta ; Male ; Memory/*physiology ; Species Specificity ; Time Factors ; *Visual Perception
    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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  • 39
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    beta, gamma-Peroxy analogs of adenosine and guanosine triphosphate: synthesis and biological activity (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-01-01
    Beschreibung: Extended analogs of adenosine triphosphate (ATP) and guanosine triphosphate (GTP), in which a peroxide bridge replaces the terminal bridge-oxygen of the triphosphate chain, have been synthesized. The ability of beta, gamma-peroxy-ATP to inhibit or substitute for ATP in representative enzyme systems and that of beta, gamma-peroxy-GTP, for FTP in protein synthesis was tested.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rosendahl, M S -- Leonard, N J -- GM-05829/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1982 Jan 1;215(4528):81-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7053563" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adenosine Triphosphate/*analogs & derivatives/chemical synthesis/metabolism ; Guanosine Triphosphate/*analogs & derivatives/chemical synthesis/metabolism ; Kinetics ; Peroxides ; Protein Biosynthesis/drug effects ; Structure-Activity Relationship
    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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  • 40
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    Tritiated imipramine binding sites are decreased in the frontal cortex of suicides (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-06-18
    Beschreibung: Binding characteristics of tritiated imipramine were determined in the frontal cortex of suicides and well-matched controls. Maximal binding was significantly lower in brains from the suicides. This finding is consistent with reports of decreased tritiated imipramine binding in the platelets of patients diagnosed as having a major affective disorder.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stanley, M -- Virgilio, J -- Gershon, S -- New York, N.Y. -- Science. 1982 Jun 18;216(4552):1337-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7079769" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adolescent ; Adult ; *Carrier Proteins ; Cerebral Cortex/*metabolism ; Humans ; Imipramine/*metabolism ; Kinetics ; Middle Aged ; Receptors, Drug/*metabolism ; Reference Values ; *Suicide ; Tritium
    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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  • 41
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    Decreased nocturnal plasma melatonin peak in patients with estrogen receptor positive breast cancer (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-05-28
    Beschreibung: Plasma melatonin concentrations were determined over a period of 24 hours in 20 women with clinical stage I or II breast cancer. In ten of the patients, whose tumors were estrogen receptor positive, the nocturnal increase in plasma melatonin was much lower than that observed in eight control subjects. Women with the lowest peak concentration of melatonin had tumors with the highest concentrations of estrogen receptors. A significant correlation was found between the peak plasma melatonin concentration and the tumor estrogen receptor concentration in 19 of the patients. These data suggest that low nocturnal melatonin concentrations may indicate the presence of estrogen receptor positive breast cancer and could conceivably have etiologic significance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tamarkin, L -- Danforth, D -- Lichter, A -- DeMoss, E -- Cohen, M -- Chabner, B -- Lippman, M -- New York, N.Y. -- Science. 1982 May 28;216(4549):1003-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7079745" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adult ; Aged ; Breast Neoplasms/*blood/metabolism/physiopathology ; *Circadian Rhythm ; Humans ; Melatonin/*blood ; Middle Aged ; Pineal Gland/*physiopathology ; Receptors, Estrogen/*metabolism
    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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