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  • Adult  (149)
  • Rabbits  (90)
  • Dose-Response Relationship, Drug  (89)
  • American Association for the Advancement of Science (AAAS)  (321)
  • Annual Reviews
  • 1980-1984  (321)
Collection
Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (321)
  • Annual Reviews
  • Springer  (4)
Years
Year
  • 1
    Publication Date: 1980-12-12
    Description: Two- to threefold variations in sleep length were observed in 12 subjects living on self-selected schedules in an environment free of time cues. The duration of polygraphically recorded sleep episodes was highly correlated with the circadian phase of the body temperature rhythm at bedtime and not with the length of prior wakefulness. Furthermore, the rate of REM (rapid eye movement) sleep accumulation , REM latency, bedtime selection, and self-rated alertness assessments were also correlated with the body temperature rhythm.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Czeisler, C A -- Weitzman, E d -- Moore-Ede, M C -- Zimmerman, J C -- Knauer, R S -- AG-00792/AG/NIA NIH HHS/ -- GM-07365/GM/NIGMS NIH HHS/ -- MH-28460/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1980 Dec 12;210(4475):1264-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7434029" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Body Temperature ; *Circadian Rhythm ; Humans ; Male ; Middle Aged ; Sleep/*physiology ; Sleep, REM/physiology ; Wakefulness
    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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  • 2
    Publication Date: 1980-05-02
    Description: The highly selective, enzyme-activated, irreversible inhibitor of L-ornithine decarboxylase, DL-alpha-difluoromethylornithine, suppresses the increase in uterine L-ornithine decarboxylase activity associated with early embryogenesis in the mouse and arrests embryonic development at that stage. Contragestational effects were confirmed in the rat and rabbit. An increase in L-ornithine decarboxylase activity that leads to a rapid increase in putrescine concentration appears to be essential during a critical period after implantation for continued mammalian embryonal growth.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fozard, J R -- Part, M L -- Prakash, N J -- Grove, J -- Schechter, P J -- Sjoerdsma, A -- Koch-Weser, J -- New York, N.Y. -- Science. 1980 May 2;208(4443):505-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6768132" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosylmethionine Decarboxylase/metabolism ; Animals ; Carboxy-Lyases/*physiology ; Eflornithine ; Embryo, Mammalian/drug effects/*physiology ; Female ; Gestational Age ; Mice ; Ornithine/*analogs & derivatives/pharmacology ; Ornithine Decarboxylase/*physiology ; Ornithine Decarboxylase Inhibitors ; Polyamines/metabolism ; Pregnancy ; Rabbits ; Rats ; Uterus/drug effects/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
    Publication Date: 1980-05-30
    Description: Neurons in deep laminae of the rabbit cingulate cortex develop discriminative activity at an early stage of behavioral discrimination learning, whereas neurons in the anteroventral nucleus of thalamus and neurons in the superficial cortical laminae develop such activity in a late stage of behavioral learning. It is hypothesized that early-forming discriminative neuronal activity, relayed to anteroventral neurons via the corticothalamic pathway, contributes to the construction of changes underlying the late-forming neuronal discrimination in the anteroventral nucleus. The resultant late discriminative activity in the anteroventral nucleus is then relayed via the thalamocortical pathway back to the superficial cortical laminae, promoting disengagement of cortex from further task-processing.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gabriel, M -- Foster, K -- Orona, E -- New York, N.Y. -- Science. 1980 May 30;208(4447):1050-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7375917" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Avoidance Learning/*physiology ; Brain Mapping ; Cerebral Cortex/cytology/*physiology ; Discrimination (Psychology)/*physiology ; Gyrus Cinguli/*physiology ; Neural Pathways/physiology ; Rabbits ; Thalamus/*physiology ; Time Factors
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
    Publication Date: 1980-05-02
    Description: Analysis of extracts of the bloodstream forms of Trypanosoma brucei showed that both DNA polymerase-alpha and DNA polymerase-beta activities were present. The detection of DNA polymerase-beta in T. brucei demonstrates the presence of this enzyme in unicellular organisms. DNA polymerase-beta is present also in Leishmania mexicana. The DNA polymerases in T. brucei are immunologically distinct from the host enzymes. The structural differences between the parasite and the host enzymes could be exploited for the development of agents to combat parasitic diseases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chang, L M -- Cheriathundam, E -- Mahoney, E M -- Cerami, A -- New York, N.Y. -- Science. 1980 May 2;208(4443):510-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7367875" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Centrifugation, Density Gradient ; Chickens ; DNA Polymerase I/analysis ; DNA Polymerase II/analysis ; DNA Polymerase III/analysis ; DNA-Directed DNA Polymerase/*analysis ; Fishes ; Immune Sera ; Leishmania/*enzymology ; Molecular Weight ; Rabbits ; Rats ; Species Specificity ; Trypanosoma brucei brucei/*enzymology
    Print ISSN: 0036-8075
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  • 5
    Publication Date: 1980-04-25
    Description: In BALB/c female mice with melanoma transplants, the incidence of "takes" is decreased and survival is increased by hydroquinone, a melanocytolytic agent. The mechanism of drug action is suggested by via DNA. The significant and high degree of positive response to hydroquinone treatment in vivo is encouraging for the clinical management of melanoma with melanocytolytic agents.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chavin, W -- Jelonek, E J Jr -- Reed, A H -- Binder, L R -- New York, N.Y. -- Science. 1980 Apr 25;208(4442):408-10.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7367868" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Disease Models, Animal ; Dose-Response Relationship, Drug ; Female ; Hydroquinones/metabolism/*therapeutic use ; Melanocytes/metabolism ; Melanoma/*drug therapy ; Mice ; Neoplasm Transplantation ; Neoplasms, Experimental/drug therapy
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-11-07
    Description: Lanosterol, a cholesterol precursor that increases considerably in the platelets of rats treated with oral contraceptives, was incubated with either platelet-rich plasma or washed platelet suspension. After 2 minutes there was a remarkable dose-related increase in platelet activity. This platelet hyperactivity was measured by clotting time and platelet aggregation could not be reproduced by cholesterol or ethinylestradiol.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ciavatti, M -- Dumont, E -- Benoit, C -- Renaud, S -- New York, N.Y. -- Science. 1980 Nov 7;210(4470):642-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7433990" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood Coagulation/*drug effects ; Blood Platelets/*drug effects ; Contraceptives, Oral/*pharmacology ; Dose-Response Relationship, Drug ; Female ; Lanosterol/*pharmacology ; Platelet Aggregation/*drug effects ; Rats
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-03-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1980 Mar 21;207(4437):1323-5, 1327-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7188816" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Environment ; Female ; Genetics, Medical ; Humans ; Intelligence ; Male ; Pregnancy ; Twins/*psychology ; Twins, Monozygotic/*psychology
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  • 8
    Publication Date: 1980-05-09
    Description: Olfactory sensitivity to acetic acid, isobutyric acid, and 2-sec-butyl-cyclohexanone was tested in 97 adult male twin pairs to determine the extent to which variation in odor perception was genetically determined. Analysis of the data revealed no evidence for heritability of olfactory sensitivity. However, factors significantly associated with odor perception included cigar, pipe, and cigarette smoking; body fatness; alcohol consumption; and diabetes mellitus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hubert, H B -- Fabsitz, R R -- Feinleib, M -- Brown, K S -- New York, N.Y. -- Science. 1980 May 9;208(4444):607-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7189296" target="_blank"〉PubMed〈/a〉
    Keywords: Acetates ; Adult ; Alcohol Drinking ; Butyrates ; Cyclohexanones ; *Environment ; Female ; *Genes ; Humans ; Male ; Middle Aged ; Pregnancy ; Sensory Thresholds ; Skinfold Thickness ; Smell/*physiology ; Smoking ; *Twins ; Twins, Dizygotic ; Twins, Monozygotic
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  • 9
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-07-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G B -- New York, N.Y. -- Science. 1980 Jul 25;209(4455):475-6, 478-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7394512" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Anorexia Nervosa ; Female ; *Human Experimentation ; Humans ; *Jurisprudence ; Lithium ; *National Institutes of Health (U.S.) ; *Patient Selection ; *Research ; *Research Subjects ; Sleep ; United States ; Vomiting
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  • 10
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-03-14
    Description: Mebendazole was highly effective against the helminth parasite Trichinella spiralis in mice subjected to a 3-day course of treatment during the invasive and encystment phases of experimental trichinellosis. When treatment began either 2 or 4 weeks after the mice were inoculated with parasites, the number of larvae developing in the host musculature was greatly reduced by twice-daily oral administration of 3.125, 6.25, or 12.5 milligrams of mebendazole per kilogram of body weight.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McCracken, R O -- Taylor, D D -- New York, N.Y. -- Science. 1980 Mar 14;207(4436):1220-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7355285" target="_blank"〉PubMed〈/a〉
    Keywords: Administration, Oral ; Animals ; Benzimidazoles/*therapeutic use ; Disease Models, Animal ; Dose-Response Relationship, Drug ; Larva ; Male ; Mebendazole/administration & dosage/*therapeutic use ; Mice ; Muscles/parasitology ; Trichinella/drug effects ; Trichinellosis/*drug therapy
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  • 11
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-02-08
    Description: Heroin-dependent men were given buprenorphine (a partial opiate agonist-antagonist) or a placebo under duoble-blind conditions on a clinical research ward where they could acquire heroin (21 to 40.5 milligrams per day, intravenously). Buprenorphine significantly (P less than .001) suppressed the self-administration of heroin over 10 days. Control subjects took between 93 and 100 percent of the available heroin. The effects of buprenorphine were dose-dependent; a dose of 8 milligrams per day reduced heroin use by 69 to 98 percent; a dose of 4 milligrams per day reduced heroin use by 45 percent. Termination of buprenorphie maintenance did not result in opiate withdrawal signs or symptoms. The subjects liked buprenorphine and indicated that it was preferable to methadone or naltrexone. Buprenorphine should be a safe and effective new pharmacotherapy for heroin dependence.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mello, N K -- Mendelson, J H -- New York, N.Y. -- Science. 1980 Feb 8;207(4431):657-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7352279" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Buprenorphine/adverse effects/*therapeutic use ; Double-Blind Method ; Heroin Dependence/*drug therapy ; Humans ; Informed Consent ; Morphinans/*therapeutic use ; Substance Withdrawal Syndrome/prevention & control ; Substance-Related Disorders/prevention & control
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  • 12
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-06-27
    Description: Rabbits on a 2 percent cholesterol diet were individually petted, held, talked to, and played with on a regular basis. Measurements of aortic affinity for a Sudan stain, serum cholesterol levels, heart rate, and blood pressure were made at the end of the experimental period. Compared to control groups, which were given the same diet and normal laboratory animal care, the experimental groups showed more than a 60 percent reduction in the percentage of aortic surface area exhibiting sudanophilic lesions, even though serum cholesterol levels, heart rate, and blood pressure were comparable.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nerem, R M -- Levesque, M J -- Cornhill, J F -- New York, N.Y. -- Science. 1980 Jun 27;208(4451):1475-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7384790" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aorta/pathology ; Arteriosclerosis/*etiology/physiopathology/psychology ; Blood Pressure ; Cholesterol/blood ; *Diet, Atherogenic ; Heart Rate ; Male ; Rabbits ; *Social Environment
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  • 13
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-04-18
    Description: In the hot plate test, substance P given intravenously at doses of 5 x 10-5 and 5 x 10-4 gram per kilogram caused analgesia, while lower doses caused hyperalgesia. The influence of substance P on nociception depended on the individual mouse's sensitivity to pain (control response latency). Analgesia was produced by substance P administered to mice with high sensitivity to thermic stimulation, whereas hyperalgesia occurred in mice whose control latencies were longer than normal. This result is interpreted as an indication that substance P is capable of normalizing responsiveness to pain and could be classified as a regulatory peptide.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Oehme, P -- Hilse, H -- Morgenstern, E -- Gores, E -- New York, N.Y. -- Science. 1980 Apr 18;208(4441):305-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6154313" target="_blank"〉PubMed〈/a〉
    Keywords: Acetates ; Animals ; Dose-Response Relationship, Drug ; Hot Temperature ; Hyperalgesia/*chemically induced ; Hyperesthesia/*chemically induced ; Mice ; Nociceptors/drug effects ; Pain/*physiopathology ; Perception/*drug effects ; Receptors, Drug/physiology ; Substance P/*pharmacology
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  • 14
    Publication Date: 1980-03-21
    Description: The interplay of insulin, cortisol, and prolactin induces synthesis of casein and alpha-lactalbumin in cultured mammary explants from mature virgin mice. A striking difference has been found between the optimal concentrations of cortisol required for maximal induction of the two milk proteins in vitro: 3 x 10(-8) molar for alpha-lactalbumin and 3 x 10(-6) molar for casein. Moreover, 10(-7) to 10(-5) molar cortisol caused progressive inhibition of alpha-lactalbumin accumulation. Such differential actions of cortisol may partly account for the asynchronous synthesis of the two proteins during pregnancy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ono, M -- Oka, T -- New York, N.Y. -- Science. 1980 Mar 21;207(4437):1367-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6986657" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Caseins/*biosynthesis ; Dose-Response Relationship, Drug ; Drug Interactions ; Female ; Hydrocortisone/*pharmacology ; Insulin/pharmacology ; Lactalbumin/*biosynthesis ; Mammary Glands, Animal/drug effects/*metabolism ; Mice ; Organ Culture Techniques ; Pregnancy ; Prolactin/pharmacology
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  • 15
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-07-25
    Description: Disposal of industrial waste resulted in massive DDT contamination at Wheeler National Wildlife Refuge, Alabama. Nearly a decade after the cessation of DDT manufacturing at the facility responsible, concentrations of DDT residues in the local fauna are still high enough to suggest avian reproductive impairment and mortality. Populations of fish-eating birds are low, endangered species are being exposed, and muscle lipids of game birds contain up to 6900 parts of DDT (isomers and metabolites) per million.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉O'Shea, T J -- Fleming, W J -- Cromartie, E -- New York, N.Y. -- Science. 1980 Jul 25;209(4455):509-60.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7394517" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Birds ; DDT/*analysis ; Ducks ; *Industrial Waste ; Lipids/analysis ; Muscles/analysis ; Rabbits ; Species Specificity
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  • 16
    Publication Date: 1980-06-13
    Description: The cellular basis of kindling was studied electrophysiologically with slices of guinea pig hippocampus. Normally, epileptiform activity can be induced in the slices only by combined exposure to elevated potassium levels and a chemical convulsant such as penicillin. In hippocampal slices from pentylenetetrazole-kindled animals, however, elevated potassium alone can induce seizures. These data suggest that kindling elicits long-term changes in neuronal excitability that may involve ionic mechanisms.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Oliver, A P -- Hoffer, B J -- Wyatt, R J -- New York, N.Y. -- Science. 1980 Jun 13;208(4449):1264-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7375936" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Dose-Response Relationship, Drug ; Epilepsy/chemically induced/*physiopathology ; Guinea Pigs ; Hippocampus/drug effects/*physiology ; In Vitro Techniques ; Male ; Neurons/drug effects/physiology ; Pentylenetetrazole/administration & dosage/pharmacology ; Potassium/*pharmacology
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  • 17
    Publication Date: 1980-05-09
    Description: The transitional epithelium of the urinary bladder secretes and binds to its surface a glycosaminoglycan than inhibits the adherence of bacteria. Synthetic sulfonated glycosaminoglycans instilled intraluminally into bladders whose natural mucin layer has been removed are as effective as the natural mucin in preventing bacterial adherence. It also appears that adherence of calcium and protein is reduced in the presence of both the natural mucin layer and the synthetic sulfonated glycosaminoglycan sodium pentosanpolysulfate, suggesting that the antiadherence activity of both natural and synthetic surface glycosaminoglycans in the bladder extends to the molecular and ionic levels.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Parsons, C L -- Stauffer, C -- Schmidt, J D -- New York, N.Y. -- Science. 1980 May 9;208(4444):605-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6154316" target="_blank"〉PubMed〈/a〉
    Keywords: Adsorption ; Animals ; Calcium/metabolism ; Cell Adhesion ; Environmental Exposure ; Epithelium/physiology ; Glycosaminoglycans/*physiology ; Male ; Mucins/pharmacology ; Pentosan Sulfuric Polyester/pharmacology ; Protein Binding/drug effects ; Proteins/metabolism ; Rabbits ; Urinary Bladder/microbiology/*physiology
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  • 18
    Publication Date: 1980-12-05
    Description: The lead content in the air at the foothills of the Himalayas in Nepal was found to be negligible. The concentration of lead in the blood of 103 children and adults living in this region was found to average 3.4 micrograms per deciliter, a level substantially lower than that found in industrialized populations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Piomelli, S -- Corash, L -- Corash, M B -- Seaman, C -- Mushak, P -- Glover, B -- Padgett, R -- ES-01104/ES/NIEHS NIH HHS/ -- ES-26437/ES/NIEHS NIH HHS/ -- New York, N.Y. -- Science. 1980 Dec 5;210(4474):1135-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7444442" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Air Pollutants/*analysis ; Child, Preschool ; China ; Environment ; Female ; Humans ; *Industry ; Lead/*blood ; Male ; Nepal
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  • 19
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-03-28
    Description: Cytochrome P-450-dependent monooxygenase systems, which metabolize endogenous as well as foriegn compounds, are found in hepatic and several extrahepatic tissues of mammals, including humans. A form of cytochrome P-450 is localized in the nonciliated bronchiolar epithelial cells (Clara cells) of the small airways of rabbit lung. The apparent high concentration of the cytochrome in this pulmonary cell type compared to liver may be an important determinant in the susceptibility of the lung to a number of toxic chemicals that undergo metabolic activation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Serabjit-Singh, C J -- Wolf, C R -- Philpot, R M -- Plopper, C G -- New York, N.Y. -- Science. 1980 Mar 28;207(4438):1469-70.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6767272" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biotransformation ; Bronchi/enzymology ; Cytochrome P-450 Enzyme System/immunology/*metabolism ; Epithelium/enzymology ; Fluorescent Antibody Technique ; Inactivation, Metabolic ; Lung/cytology/*enzymology/metabolism ; Rabbits
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  • 20
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-03-28
    Description: Forty children were given a diet free of artificial food dyes and other additives for 5 days. Twenty of the children had been classified as hyperactive by scores on the Conners Rating Scale and were reported to have favorable responses to stimulant medication. A diagnosis of hyperactivity had been rejected in the other 20 children. Oral challenges with large doses (100 or 150 milligrams) of a blend of FD & C approved food dyes or placebo were administered on days 4 and 5 of the experiment. The performance of the hyperactive children on paired-associate learning tests on the day they received the dye blend was impaired relative to their performance after they received the placebo, but the performance of the nonhyperactive group was not affected by the challenge with the food dye blend.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Swanson, J M -- Kinsbourne, M -- New York, N.Y. -- Science. 1980 Mar 28;207(4438):1485-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7361102" target="_blank"〉PubMed〈/a〉
    Keywords: Child ; Dose-Response Relationship, Drug ; Female ; Food Coloring Agents/*pharmacology ; Humans ; Hyperkinesis/*physiopathology ; Learning/*drug effects ; Male ; Time Factors
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  • 21
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-06-13
    Description: Teacher interactions with hyperactive and comparison boys were observed during classroom activities. A double-blind, methylphenidate-placebo cross-over design was used within the hyperactive group. With no knowledge of any child's diagnosis or drug status, the teacher was more intense and controlling toward hyperactive boys taking placebo than toward either medicated hyperactive boys or comparison boys; her behavior did not differ toward the latter two groups. Discussion focused on the need to consider the broad social ramifications of pharmacologic treatment programs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Whalen, C K -- Henker, B -- Dotemoto, S -- New York, N.Y. -- Science. 1980 Jun 13;208(4449):1280-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7375940" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Behavior/drug effects ; Child ; Humans ; Hyperkinesis/*drug therapy ; *Interpersonal Relations ; Male ; Methylphenidate/pharmacology/*therapeutic use ; *Teaching
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  • 22
    Publication Date: 1980-10-17
    Description: The genotoxicity of the antihypertensive agents hydralazine and dihydralazine was tested in mammalian cells and bacteria. Both drugs elicited DNA repair in rat hepatocyte primary cultures. In the Ames test, both with and without an S-9 fraction, hydralazine was mutagenic in strains TA100 and TA1537, whereas dihydralazine was weakly mutagenic in strain TA1537. These findings support the observation that hydralazine is carcinogenic in mice. The carcinogenicity of many chemicals results from interaction with DNA. Since these studies demonstrate that hydralazine and dihydralazine damage DNA in mammalian cells, these drugs should be viewed as potential human carcinogens.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Williams, G M -- Mazue, G -- McQueen, C A -- Shimada, T -- N 01-CP-55705/CP/NCI NIH HHS/ -- New York, N.Y. -- Science. 1980 Oct 17;210(4467):329-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7423193" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylation ; Animals ; Biotransformation ; *Carcinogens ; Cells, Cultured ; DNA Repair/*drug effects ; Dihydralazine/*toxicity ; Dose-Response Relationship, Drug ; Drug Evaluation, Preclinical ; Hydralazine/*analogs & derivatives/*toxicity ; Liver/metabolism ; *Mutagens ; Rats ; Salmonella typhi/drug effects
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  • 23
    Publication Date: 1980-02-15
    Description: In rats, multiple daily amphetamine injections (2.5 milligrams per kilogram of body weight, injected subcutaneously every 4 hours for 5 days) resulted in a progressive augmentation in response, characterized by a more rapid onset and an increased magnitude of stereotypy. By contrast, offset times of both the stereotypy and the poststereotypy hyperactivity periods were markedly shortened. When the animals were retested with the same dose of amphetamine 8 days after the long-term treatment was discontinued, the time of offset of the stereotypy and hyperactivity phases had recovered to values found with short-term amphetamine treatment, whereas the more rapid onset of stereotypy persisted. Brain monoamine and amphetamine concentrations and tyrosine hydroxylase activity were determined in comparably treated rats at times corresponding to the behavioral observations. The behavioral data indicate that enhanced responsiveness to amphetamine following its repeated administration may contribute to the development of amphetamine psychosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Segal, D S -- Weinberger, S B -- Cahill, J -- McCunney, S J -- New York, N.Y. -- Science. 1980 Feb 15;207(4433):905-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7188815" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Behavior/*drug effects ; Behavior, Animal/*drug effects ; Brain/metabolism ; Brain Chemistry/drug effects ; Dextroamphetamine/administration & dosage/*pharmacology ; Dopamine/metabolism ; Dose-Response Relationship, Drug ; Humans ; Male ; Motor Activity/drug effects ; Norepinephrine/metabolism ; Rats ; Serotonin/metabolism ; Stereotyped Behavior/*drug effects ; Time Factors
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  • 24
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-03-21
    Description: Phonemically similar syllables, differing only by temporal acoustic cues, were presented dichotically to investigate temporal processing mechanisms in hemispheric specialization for speech. Reducing the rate of acoustic change within syllables while keeping their phonemic characteristics constant significantly decreased the characteristic asymmetry in processing speech.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schwartz, J -- Tallal, P -- New York, N.Y. -- Science. 1980 Mar 21;207(4437):1380-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7355297" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Auditory Pathways/physiology ; Auditory Perception/*physiology ; Brain/*physiology ; Female ; *Functional Laterality ; Humans ; Linguistics ; Male ; Speech Perception/*physiology ; Time Factors
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  • 25
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-09-12
    Description: The ability to see spatial structures of a wide range of sizes was measured for two groups of observers (mean ages, 18 and 73 years). All observers had good visual acuity. Although older and younger observers did not differ in ability to see targets with fine structure (high spatial frequencies), older observers were only one-third as sensitive to targets with coarse structure (low spatial frequencies) as were younger observers or to changes in criterion. Older observers were also less able than younger observers to see moving targets. The reduced sensitivity of the older observers may adversely affect routine perceptual activities, such as face recognition and visually guided postural behavior, that depend upon low spatial frequencies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sekuler, R -- Hutman, L P -- Owsley, C J -- New York, N.Y. -- Science. 1980 Sep 12;209(4462):1255-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7403884" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; *Aging ; Humans ; Motion Perception/physiology ; Size Perception/*physiology ; Space Perception/*physiology ; Visual Acuity
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  • 26
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-10-23
    Description: A rapid laser scanning system was developed to map the spread of excitation in amphibian and mammalian hearts stained with fluorescent dye. Isochronic maps of conduction were constructed by timing the upstroke of the optical action potential; 128 sites could be scanned in 4 milliseconds. The accuracy of this technique was verified by recording simultaneously from 16 unipolar electrodes placed in different areas of the heart. Conducted action potentials in normal frog heart propagated at 0.1 meter per second. Propagation of action potentials was also monitored in ischemic cat heart, in which both driven and arrhythmic action potential upstrokes could be tracked. The results suggest that this system is capable of scanning the normal and abnormal spread of electrical activity in the heart.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dillon, S -- Morad, M -- New York, N.Y. -- Science. 1981 Oct 23;214(4519):453-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6974891" target="_blank"〉PubMed〈/a〉
    Keywords: *Action Potentials ; Animals ; *Benzenesulfonates ; Cats ; Coronary Disease/physiopathology ; Fluorescent Dyes ; Guinea Pigs ; Heart/*physiology ; *Lasers ; Rabbits ; Rana catesbeiana ; Spectrometry, Fluorescence/methods
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  • 27
    Publication Date: 1981-08-21
    Description: A new technique has been developed for identifying, in humans, dynamic spatiotemporal electrical patterns of the brain during purposive behaviors. In this method, single-trial time-series correlations between brain macropotentials recorded from different scalp sites are analyzed by distribution-independent mathematical pattern recognition. Dynamic patterns of correlation clearly distinguished two brief visuomotor tasks differing only in type of mental judgement required (spatial or numeric). These complex patterns shifted in the anterior-posterior and left-right axes between successive 175-millisecond intervals, indicating that many areas in both cerebral hemispheres were involved even in these simple judgements. These patterns were not obtainable by conventional analysis of averaged evoked potentials or by linear analysis of correlations, suggesting that the new technique will advance the study of human brain activity related to cognition and goal-directed behaviors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gevins, A S -- Doyle, J C -- Cutillo, B A -- Schaffer, R E -- Tannehill, R S -- Ghannam, J H -- Gilcrease, V A -- Yeager, C L -- New York, N.Y. -- Science. 1981 Aug 21;213(4510):918-22.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7256287" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Brain/*physiology ; *Cognition ; Electroencephalography ; *Evoked Potentials ; Female ; Humans ; Male ; Pattern Recognition, Visual/physiology
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  • 28
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-03-20
    Description: Gender identity depends largely on postnatal environmental influences, while sex-dimorphic behavior and temperamental sex differences appear to be modified by prenatal sex hormones. A role of the prenatal endocrine milieu in the development of erotic partner preference, as in hetero-, homo-, or bisexual orientation, or of cognitive sex differences has not been conclusively demonstrated.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ehrhardt, A A -- Meyer-Bahlburg, H F -- New York, N.Y. -- Science. 1981 Mar 20;211(4488):1312-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7209510" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adrenal Hyperplasia, Congenital/metabolism/psychology ; Adult ; Androgens/pharmacology ; Behavior/drug effects ; Child ; Cognition/drug effects ; Embryo, Mammalian/drug effects ; Estrogens/pharmacology ; Female ; *Gender Identity ; Gonadal Steroid Hormones/*pharmacology ; Humans ; *Identification (Psychology) ; Male ; Pregnancy ; Pregnancy Complications/drug therapy ; Progestins/pharmacology/therapeutic use ; Sexual Behavior/*drug effects
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  • 29
    Publication Date: 1981-09-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goldberg, E -- Antin, S P -- Bilder, R M Jr -- Gerstman, L J -- Hughes, J E -- Mattis, S -- New York, N.Y. -- Science. 1981 Sep 18;213(4514):1392-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7268442" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Amnesia/etiology/*physiopathology ; Amnesia, Retrograde/physiopathology ; Humans ; Male ; Memory/*physiology ; Mesencephalon/injuries/*physiopathology ; Skull Fractures/complications
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  • 30
    Publication Date: 1981-09-04
    Description: Ovaries removed from New Zealand White rabbits were perfused and exposed to gonadotropin in vitro. The ova ovulated in vitro (N = 56) were recovered and cultured and then transferred to the oviducts of six previously mated Dutch Belted hosts. Twelve of the resulting 36 offspring (33.3 percent) were white. In control matings between 12 Dutch Belted females (six randomly selected and the six hosts) and New Zealand White males, only one of 80 (1.2 percent) offspring was white. These data indicate that ova ovulated in vitro can be transferred to the oviduct of a host rabbit where they may be fertilized and after implantation may develop into viable embryos.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kobayashi, Y -- Santulli, R -- Wright, K H -- Wallach, E E -- HD-05948/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1981 Sep 4;213(4512):1127-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7268420" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chorionic Gonadotropin/*pharmacology ; Embryo Transfer ; Female ; *Fertilization in Vitro ; Ovary/drug effects/*physiology ; *Ovulation/drug effects ; Pregnancy ; Rabbits
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  • 31
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-11-27
    Description: Ten patients with multiple sclerosis who were treated with human fibroblast interferon (IFN-B) for 6 months showed a significant reduction in their exacerbation rates compared with their rates before treatment (P 〈 .01). The IFN-B was administered intrathecally by serial lumbar punctures. There was no significant change in the exacerbation rates of ten multiple sclerosis control patients before and during the period of observation. The IFN-B recipients have now been on the study a mean of 1.5 years, the controls, 1.2 years. The clinical condition of five of the IFN-B recipients and one of the control patients has improved, whereas the condition of five of the controls and one of the IFN-B recipients has deteriorated (P 〈 .036). These findings warrant cautious optimism about the efficacy of intrathecal IFN-B in altering the course of multiple sclerosis and support concepts of a viral or dysimmune etiology of the disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jacobs, L -- O'Malley, J -- Freeman, A -- Ekes, R -- CA-18533/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1981 Nov 27;214(4524):1026-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6171035" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Clinical Trials as Topic ; Female ; Fibroblasts ; Follow-Up Studies ; Humans ; Interferons/*therapeutic use ; Male ; Multiple Sclerosis/*drug therapy
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  • 32
    Publication Date: 1981-02-06
    Description: 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〉
    Keywords: 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
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  • 33
    Publication Date: 1981-04-17
    Description: Sensory and cognitive functions were assessed in a right-handed male before and after partial and complete callosal commissurotomy. After the initial posterior section was made, there was no evidence of interhemispheric sensory transfer, although the left hemisphere did have access to stimulus-related semantic and episodic information from the right hemisphere. After the callosum was completely sectioned, this exchange was no longer observed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sidtis, J J -- Volpe, B T -- Holtzman, J D -- Wilson, D H -- Gazzaniga, M S -- 2 R01 NS15053-02/NS/NINDS NIH HHS/ -- RR001-02/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1981 Apr 17;212(4492):344-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6782673" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Cognition/*physiology ; Cognition Disorders/*physiopathology ; Corpus Callosum/*physiology/surgery ; Epilepsy, Tonic-Clonic/surgery ; Humans ; Language Disorders/*physiopathology ; Male ; Methods ; Perception/physiology ; Perceptual Disorders/*physiopathology ; Postoperative Complications/physiopathology ; Sensation/*physiology
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  • 34
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-07-17
    Description: 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〉
    Keywords: Animals ; Bee Venoms/*pharmacology ; Dose-Response Relationship, Drug ; Enzyme Activation ; Guanylate Cyclase/*metabolism ; Kinetics ; Organ Specificity ; Phospholipases/*pharmacology ; Phospholipases A/*pharmacology ; Phospholipases A2 ; Rats
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  • 35
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-04-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wade, N -- New York, N.Y. -- Science. 1981 Apr 3;212(4490):24-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6259731" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; *DNA, Recombinant ; *Ethics Committees, Research ; *Ethics, Medical ; Federal Government ; Female ; *Genetic Engineering/history ; Genetic Vectors ; Globins/genetics ; Government Regulation ; History, 20th Century ; Humans ; Informed Consent ; Israel ; Plasmids ; Thalassemia/*therapy ; United States
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  • 36
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-04-03
    Description: 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〉
    Keywords: 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
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  • 37
    Publication Date: 1981-02-06
    Description: Arginine vasopressin and a number of its synthetic analogs augment memory functions in experimental animals. One of these analogs, 1-desamino-8-D-arginine vasopressin (DDAVP), influences human learning and memory. Cognitively unimpaired, as well as cognitively impaired adults, treated with DDAVP for a period of several days, learn information more effectively, as measured by the completeness, organization, and consistency (reliability) of recall. DDAVP also appears to reverse partially the retrograde amnesia that follows electroconvulsive treatment.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weingartner, H -- Gold, P -- Ballenger, J C -- Smallberg, S A -- Summers, R -- Rubinow, D R -- Post, R M -- Goodwin, F K -- New York, N.Y. -- Science. 1981 Feb 6;211(4482):601-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7455701" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Arginine Vasopressin/*pharmacology ; Cognition/drug effects ; Deamino Arginine Vasopressin/pharmacology ; Depression/physiopathology ; Female ; Humans ; Learning/*drug effects ; Male ; Memory/*drug effects ; Middle Aged
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  • 38
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-07-31
    Description: 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〉
    Keywords: Animals ; Avoidance Learning/*drug effects ; Dose-Response Relationship, Drug ; Drug Tolerance ; Ethanol/blood/*pharmacology ; Rats
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  • 39
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-03-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilson, J D -- George, F W -- Griffin, J E -- AM03892/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1981 Mar 20;211(4488):1278-84.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7010602" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anti-Mullerian Hormone ; Estradiol/metabolism/*physiology ; Female ; *Glycoproteins ; Gonadotropins/physiology ; *Growth Inhibitors ; Humans ; Male ; Morphogenesis ; Mullerian Ducts ; Ovary/embryology ; Rabbits ; Receptors, Androgen/metabolism ; *Sex Differentiation ; Testicular Hormones/*physiology ; Testis/embryology/secretion ; Testosterone/metabolism/*physiology ; Time Factors ; Urogenital System/embryology ; Wolffian Ducts
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  • 40
    Publication Date: 1981-05-08
    Description: The cumulative effects of a repetitive stress induced by anticipation of pain (noxious foot shock) were studied on the threshold of a nociceptive flexion reflex of the lower limb. The threshold of the nociceptive reflex progressively increased with the repetition of the stress. This effect was reversed by naloxone, which even produced hyperalgesia, since a rapid and significant decrease in this threshold, below the initial values, was noted. Tha data provide evidence for involvement of endogenous opioids in the phenomenon of stress-induced analgesia in normal man.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Willer, J C -- Dehen, H -- Cambier, J -- New York, N.Y. -- Science. 1981 May 8;212(4495):689-91.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6261330" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Female ; Humans ; Male ; Naloxone/pharmacology ; Pain/*physiopathology ; Receptors, Opioid/*physiology ; Reflex/drug effects ; Stress, Psychological/*physiopathology
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  • 41
    Publication Date: 1982-02-19
    Description: As reticulocytes mature into erythrocytes, organelles and many enzymes are lost. Protein degradation during reticulocyte maturation was measured by monitoring the release of tyrosine from cell proteins. Proteolysis in rabbit red blood cells was directly proportional to the number of reticulocytes and was low in erythrocytes. This process was inhibited by blockers of cellular adenosine triphosphate production and by agents, such as o-phenanthroline, N-ethylmaleimide, and hemin, which inhibit the soluble adenosine triphosphate-dependent proteolytic system. The breakdown of endogenous proteins in reticulocyte extracts was also inhibited by these agents and required adenosine triphosphate. Inhibitors of lysosomal function, however, did not affect proteolysis. Thus, the proteolytic system that degrades abnormal proteins also catalyzes the elimination of proteins during red cell development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boches, F S -- Goldberg, A L -- New York, N.Y. -- Science. 1982 Feb 19;215(4535):978-80.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7156977" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/*physiology ; Animals ; Blood Proteins/*metabolism ; Cell Differentiation ; Cyclophosphamide/pharmacology ; Deoxyglucose/pharmacology ; Dinitrophenols/pharmacology ; Lysosomes/enzymology ; Rabbits ; Reticulocytes/*physiology ; Tyrosine/analysis
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  • 42
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1982-04-30
    Description: Calcium ionophore A23187 promotes ooplasmic segregation and orange crescent formation in eggs of the ascidian Boltenia villosa. When eggs were exposed to a gradient A23187 the orange crescent was induced to form in the region corresponding to the highest concentration of ionophore. This result is consistent with the hypothesis that a local increase in intracellular calcium polarizes cytoplasmic localization in the ascidian embryo.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jeffery, W R -- 232-HDO-7098/HD/NICHD NIH HHS/ -- HD-13970/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1982 Apr 30;216(4545):545-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6803360" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anti-Bacterial Agents/*pharmacology ; Calcimycin/*pharmacology ; Calcium/*physiology ; Cell Compartmentation/drug effects ; Cytoplasm/ultrastructure ; Dose-Response Relationship, Drug ; Female ; Ovum/*drug effects/ultrastructure ; Urochordata
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  • 43
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1982-09-24
    Description: Phencyclidine elicits hyperthermia at low doses and hypothermia at high doses in rats. Naloxone antagonizes both effects. Phencyclidine's effects on thermo-regulation are probably mediated by an interaction with a mu opiate receptor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Glick, S D -- Guido, R A -- DA 02534/DA/NIDA NIH HHS/ -- DA 70082/DA/NIDA NIH HHS/ -- New York, N.Y. -- Science. 1982 Sep 24;217(4566):1272-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6287581" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Body Temperature Regulation/*drug effects ; Dose-Response Relationship, Drug ; Female ; Naloxone/pharmacology ; Phencyclidine/antagonists & inhibitors/*pharmacology ; Rats ; Receptors, Opioid/*drug effects
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  • 44
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1982-12-24
    Description: 〈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〉
    Keywords: Adult ; Anemia, Sickle Cell/therapy ; Azacitidine/therapeutic use ; Fetal Hemoglobin/biosynthesis/*genetics ; Hemoglobin, Sickle/biosynthesis ; Humans ; Male ; Thalassemia/therapy
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  • 45
    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
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  • 46
    Publication Date: 1982-11-26
    Description: 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〉
    Keywords: Action Potentials ; Adult ; Brain/*physiology ; Brain Mapping ; Cognition/*physiology ; Discrimination (Psychology)/physiology ; Evoked Potentials ; Humans ; Information Theory ; Perception/*physiology ; Time Factors
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  • 47
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1982-09-03
    Description: 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〉
    Keywords: 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
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  • 48
    Publication Date: 1982-01-08
    Description: 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〉
    Keywords: 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
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  • 49
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-09-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1983 Sep 23;221(4617):1244-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6684327" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Dose-Response Relationship, Drug ; Ethanol/*adverse effects ; Female ; Pregnancy ; Pregnancy, Animal/*drug effects
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  • 50
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-10-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉HD-12572/HD/NICHD NIH HHS/ -- MH-00318/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1983 Oct 7;222(4619):74-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6623059" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Age Factors ; Child, Preschool ; *Eye Movements ; Humans ; Research Design
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  • 51
    Publication Date: 1983-04-29
    Description: Selective pharmacological inhibition of thromboxane A2 synthesis did not prevent arachidonate-induced aggregation of human platelets in vitro. Prevention was instead achieved by a combination of thromboxane A2 inhibitors with low concentrations of aspirin. The latter partially reduced the proaggregatory cyclooxygenase products that accumulated when thromboxane A2 synthesis was blocked. The aspirin concentrations did not affect per se either platelet aggregation or prostacyclin synthesis in cultured human endothelial cells. The combination of thromboxane synthetase inhibitors with low doses of aspirin may offer greater antithrombotic potential than either drug alone.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bertele, V -- Falanga, A -- Tomasiak, M -- Dejana, E -- Cerletti, C -- de Gaetano, G -- New York, N.Y. -- Science. 1983 Apr 29;220(4596):517-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6682245" target="_blank"〉PubMed〈/a〉
    Keywords: Aspirin/*pharmacology ; Blood Platelets/*drug effects/enzymology ; Dose-Response Relationship, Drug ; Drug Interactions ; Humans ; Imidazoles/pharmacology ; Methacrylates/pharmacology ; Oxidoreductases/*antagonists & inhibitors ; Platelet Aggregation/drug effects ; Thromboxane-A Synthase/*antagonists & inhibitors
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  • 52
    Publication Date: 1983-07-01
    Description: Mammalian atrial extracts possess natriuretic and diuretic activity. In experiments reported here it was found that atrial, but not ventricular, extract also causes relaxation of isolated vascular and nonvascular smooth muscle preparations. The smooth muscle relaxant activity of atrial extract was heat-stable and concentration-dependent and could be destroyed with protease. Rabbit aortic and chick rectum strips were used for the detection of atrial biological activity. The atrial activity was separated by column chromatography into two peaks having apparent molecular weights of 20,000 to 30,000 and less than 10,000. The atrial substance that copurified with the smooth muscle relaxant activity in both peaks caused natriuresis when injected into conscious rats. It appears that atria possess at least two peptides that elicit smooth muscle relaxation and natriuresis, suggesting an endogenous system of fluid volume regulation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Currie, M G -- Geller, D M -- Cole, B R -- Boylan, J G -- YuSheng, W -- Holmberg, S W -- Needleman, P -- New York, N.Y. -- Science. 1983 Jul 1;221(4605):71-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857267" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Atrial Function ; Chickens ; Chromatography, Gel ; Dogs ; Dose-Response Relationship, Drug ; Humans ; Molecular Weight ; Muscle, Smooth/drug effects ; Muscle, Smooth, Vascular/*drug effects ; Natriuresis/drug effects ; Rabbits ; Rats ; Swine ; Vasodilation/drug effects
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  • 53
    Publication Date: 1983-05-20
    Description: The acquired immune deficiency syndrome (AIDS) is characterized by T-lymphocyte dysfunction and is frequently accompanied by opportunistic infections and Kaposi's sarcoma. Human T-cell leukemia virus (HTLV) is associated with T-cell malignancies and can transform T lymphocytes in vitro. In an attempt to find evidence of HTLV infection in patients with AIDS, DNA from samples of peripheral blood lymphocytes from 33 AIDS patients was analyzed by Southern blot-hybridization with a radiolabeled cloned HTLV DNA probe. Analysis of DNA from both the fresh (uncultured) lymphocytes and from T cells cultured with T-cell growth factor revealed the presence of integrated HTLV proviral sequences in lymphocytes from two of the patients, both of whom had antibody to HTLV. The proviral sequences could not be detected in blood samples obtained from these individuals at a later date, consistent with the possibility that the population of infected cells had become depleted.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gelmann, E P -- Popovic, M -- Blayney, D -- Masur, H -- Sidhu, G -- Stahl, R E -- Gallo, R C -- New York, N.Y. -- Science. 1983 May 20;220(4599):862-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6601822" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/etiology/immunology/*microbiology ; Adult ; Animals ; Cats ; DNA, Viral/*analysis ; Humans ; Male ; Middle Aged ; *Retroviridae/genetics ; T-Lymphocytes/analysis/microbiology ; Tumor Virus Infections/complications/*microbiology
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  • 54
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-04-15
    Description: Behavior of squirrel monkeys, maintained by the termination of stimuli associated with electric shock, was suppressed by response-dependent shock delivery. The effects of pentobarbital on this behavior depended on whether monkeys had previously received morphine. In monkeys without experience with drugs, pentobarbital increased responding. In monkeys with recent experience with morphine, however, pentobarbital resulted in a smaller increase or decrease in responding. The rate-decreasing effects of pentobarbital after a history of morphine administration could be reversed by the administration of d-amphetamine. These findings suggest that the behavioral effects of abused drugs may depend on previous experience with other drugs, even when those drugs are from a different pharmacological class.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Glowa, J R -- Barrett, J E -- DA 02658/DA/NIDA NIH HHS/ -- DA 02873/DA/NIDA NIH HHS/ -- MH 07658/MH/NIMH NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1983 Apr 15;220(4594):333-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6682244" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Behavior, Animal/*drug effects ; Dextroamphetamine/pharmacology ; Dose-Response Relationship, Drug ; Drug Interactions ; Humans ; Macaca mulatta ; Male ; Morphine/pharmacology ; Pentobarbital/*pharmacology ; Saimiri ; Substance-Related Disorders/physiopathology
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  • 55
    Publication Date: 1983-12-23
    Description: Endotoxin-free thymosin fraction 5 elevated corticotropin, beta-endorphin, and cortisol in a dose- and time-dependent fashion when administered intravenously to prepubertal cynomolgus monkeys. Two synthetic component peptides of thymosin fraction 5 had no acute effects on pituitary function, suggesting that some other peptides in thymosin fraction 5 were responsible for its corticotropin-releasing activity. In agreement with these observations, total thymectomy of juvenile macaques was associated with decreases in plasma cortisol, corticotropin, and beta-endorphin. These findings indicate that the prepubertal primate thymus contains corticotropin-releasing activity that may contribute to a physiological immunoregulatory circuit between the developing immunological and pituitary-adrenal systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Healy, D L -- Hodgen, G D -- Schulte, H M -- Chrousos, G P -- Loriaux, D L -- Hall, N R -- Goldstein, A L -- CA 24974/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1983 Dec 23;222(4630):1353-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6318312" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenocorticotropic Hormone/*blood ; Animals ; Dose-Response Relationship, Drug ; Endorphins/blood ; Female ; Hydrocortisone/blood ; Kinetics ; Macaca fascicularis ; Thymectomy ; Thymosin/analogs & derivatives/*pharmacology ; Thymus Gland/*physiology ; beta-Endorphin
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  • 56
    Publication Date: 1983-06-03
    Description: The eye movements of human subjects were experimentally modified while they were awake to determine the effect of waking experience on electroculographic activity during rapid eye movement (REM) sleep. After normal eye movements were monitored under controlled conditions, subjects spent 5 days wearing goggles that contained minification lenses and that curtailed vision to a 5 degree field. The amplitude and frequency of eye movements decreased when subjects were awake and increased during REM sleep; sleep stage durations and distributions were unaffected. Values returned to normal in the first 24 hours of recovery.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Herman, J H -- Roffwarg, H P -- MH 3414/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1983 Jun 3;220(4601):1074-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6844929" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Electrooculography ; *Eye Movements ; Humans ; Oculomotor Muscles/physiology ; Sleep, REM/*physiology ; Wakefulness/*physiology
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  • 57
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-03-04
    Description: Efforts in estimating carcinogenic risk in humans from long-term exposure to chemical carcinogens have centered on the problem of low-dose extrapolation. For chemicals with metabolites that interact with DNA, it may be more meaningful to relate tumor response to the concentration of the DNA adducts in the target organ rather than to the applied dose. Many data suggest that the relation between tumor response and concentration of DNA adducts in the target organ may be linear. This implies that the nonlinearities of the dose-response curve for tumor induction may be due to the kinetic processes involved in the formation of carcinogen metabolite--DNA adducts. Of particular importance is the possibility that the kinetic processes may show a nonlinear "hockey-stick" like behavior which results from saturation of detoxification or DNA repair processes. The mathematical models typically used for low-dose extrapolation are shown potentially to overestimate risk by several orders of magnitude when nonlinear kinetics are present.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hoel, D G -- Kaplan, N L -- Anderson, M W -- New York, N.Y. -- Science. 1983 Mar 4;219(4588):1032-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6823565" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carcinogens/*administration & dosage ; Cell Transformation, Neoplastic/*drug effects ; DNA, Neoplasm/genetics ; Dose-Response Relationship, Drug ; Humans ; Kinetics ; Models, Biological ; Neoplasms/*chemically induced ; Risk
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  • 58
    Publication Date: 1983-06-03
    Description: A synthetic analog of bovine parathyroid hormone (bPTH), [tyrosine-34] bPTH-(7-34)NH2, was found to inhibit parathyroid hormone action in vivo. When the analog and parathyroid hormone were infused simultaneously to rats at a molar ratio of 200 to 1, the analog inhibited the excretion of urinary phosphate and adenosine 3',5'-monophosphate. When infused alone at the same dose rate, the analog was devoid of agonist activity. The compound was prepared by following design principles developed for inhibitors of parathyroid hormone, and is believed to be the first antagonist of parathyroid hormone that is effective in vivo.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Horiuchi, N -- Holick, M F -- Potts, J T Jr -- Rosenblatt, M -- AM11749/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1983 Jun 3;220(4601):1053-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6302844" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cyclic AMP/urine ; Dose-Response Relationship, Drug ; Male ; Parathyroid Hormone/*antagonists & inhibitors/*pharmacology ; Peptide Fragments/*pharmacology ; Phosphates/urine ; Rats
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  • 59
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-07-22
    Description: Protein phosphorylation is a principal regulatory mechanism in the control of almost all cellular processes. The nature of the protein phosphatases that participate in these reactions has been a subject of controversy. Four enzymes, termed protein phosphatases 1, 2A, 2B, and 2C, account for virtually all of the phosphatase activity toward phosphoproteins involved in controlling glycogen metabolism, glycolysis, gluconeogenesis, fatty acid synthesis, cholesterol synthesis, and protein synthesis. The properties, physiological roles, and mechanisms for regulating the four protein phosphatases are reviewed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ingebritsen, T S -- Cohen, P -- New York, N.Y. -- Science. 1983 Jul 22;221(4608):331-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6306765" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Calcium/physiology ; Cyclic AMP/metabolism ; Glycogen/metabolism ; Liver/enzymology ; Muscles/enzymology ; Phosphoprotein Phosphatases/classification/*physiology ; Phosphoproteins/metabolism ; Phosphorylase Phosphatase/metabolism ; Phosphorylation ; Protein Biosynthesis ; Protein Kinases/physiology ; Rabbits ; Rats
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  • 60
    Publication Date: 1983-04-01
    Description: The tissue culture condition that is required for the type of chromosome breakage seen at most fragile sites, namely, the absence of folic acid and thymidine in the medium, greatly enhanced micronucleus formation in proliferating lymphocyte cultures from normal individuals. This suggests that chromosome breakage at fragile sites and the apparently spontaneous damage that gives rise to micronuclei are controlled by the same mechanism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jacky, P B -- Beek, B -- Sutherland, G R -- New York, N.Y. -- Science. 1983 Apr 1;220(4592):69-70.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6828880" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Cell Nucleus/drug effects/ultrastructure ; Cells, Cultured ; Child ; *Chromosome Aberrations ; Chromosome Fragile Sites ; *Chromosome Fragility ; Culture Media ; Dose-Response Relationship, Drug ; Female ; Folic Acid/pharmacology ; Humans ; Lymphocytes/ultrastructure ; Male ; Middle Aged ; Thymidine/pharmacology
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  • 61
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-04-15
    Description: Glucose given to the newborn human may result in hyperglycemia, suggesting that its utilization is impaired at this developmental stage. Galactose is thought to be a more appropriate carbohydrate source for the newborn. The enzymes involved in hexose phosphorylation may, in part, be responsible for these observations. A key regulatory enzyme of hepatic glucose assimilation, glucokinase, is diminished in newborns compared to adults, whereas galactokinase activity is increased. When newborn dogs were fasted and then fed either glucose or galactose, their plasma insulin responses to glucose were similar, but the pups fed galactose demonstrated an attenuated systemic appearance rate of glucose. Hexose incorporation into hepatic glycogen and net glycogen synthesis was augmented in the galactose-fed dogs. In vitro, liver from neonatal dogs showed enhanced galactokinase activity relative to that for hexokinase or glucokinase. Neonatal hexose assimilation may be independent of insulin action and, instead, be related to the developmental presence of hexose phosphorylating enzymes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kliegman, R M -- Miettinen, E L -- Morton, S -- HD05740/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1983 Apr 15;220(4594):302-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836273" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Animals ; Animals, Newborn/metabolism ; *Carbohydrate Metabolism ; Dogs ; Galactokinase/*physiology ; Galactose/metabolism ; Galactosemias ; Glucose/metabolism ; Humans ; Infant, Newborn ; Liver/enzymology ; Liver Glycogen/biosynthesis ; Phosphorylation ; Rats
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  • 62
    Publication Date: 1983-09-23
    Description: When cultured in a hypoxic environment similar to that found in the center of a wound, macrophages secreted active angiogenesis factor into the medium. Under conditions similar to those of well-oxygenated tissue, macrophages did not secrete active angiogenesis factor. Macrophages that secreted the factor at hypoxic conditions stopped secreting it when returned to room air. Thus the control of angiogenesis in wound healing may be the result of macrophages responding to tissue oxygen tension without the necessity of interacting with other cell types or biochemical signals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Knighton, D R -- Hunt, T K -- Scheuenstuhl, H -- Halliday, B J -- Werb, Z -- Banda, M J -- GM27345/GM/NIGMS NIH HHS/ -- HL26323/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1983 Sep 23;221(4617):1283-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6612342" target="_blank"〉PubMed〈/a〉
    Keywords: Angiogenesis Inducing Agents/*biosynthesis ; Animals ; Anoxia/physiopathology ; Cells, Cultured ; Cornea ; Growth Substances/*biosynthesis ; Macrophages/*physiology ; Models, Biological ; Oxygen/*physiology ; Rabbits ; *Wound Healing
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  • 63
    Publication Date: 1983-09-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G -- New York, N.Y. -- Science. 1983 Sep 16;221(4616):1164-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6310747" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anticholesteremic Agents/therapeutic use ; Cholesterol/*blood ; Coronary Disease/drug therapy/*etiology ; Humans ; Lovastatin ; Naphthalenes/therapeutic use ; Rabbits ; Receptors, Cell Surface/physiology ; Receptors, LDL
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  • 64
    Publication Date: 1983-08-26
    Description: A substitution of alanine for valine at position 126 in the beta-chain of hemoglobin was discovered in a hematologically normal adult male of Lebanese extraction. The variant beta-globin was initially observed and subsequently purified by reverse-phase high-performance liquid chromatography (HPLC). Reverse-phase HPLC was also used to isolate the variant tryptic peptide of beta-T13 that has alanine replacing valine at residue 126. The discovery of hemoglobin Beirut illustrates the usefulness of reverse-phase HPLC for the detection of neutral amino acid substitutions in proteins. The ability to detect neutral substitutions in undigested proteins is pertinent to the monitoring of genetic variation in human populations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Strahler, J R -- Rosenbloom, B B -- Hanash, S M -- R01-HL25541/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1983 Aug 26;221(4613):860-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6879181" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Chromatography, High Pressure Liquid ; Hemoglobins, Abnormal/genetics/*isolation & purification ; Humans ; Isoelectric Point ; Macromolecular Substances ; Male
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  • 65
    Publication Date: 1983-11-25
    Description: Intracisternal injection of ovine corticotropin-releasing factor (CRF) into the pylorus-ligated rat or the rat with gastric fistula resulted in a dose-dependent inhibition of gastric secretion stimulated with pentagastrin or thyrotropin-releasing hormone. When injected into the lateral hypothalamus--but not when injected into the cerebral cortex--CRF suppressed pentagastrin-stimulated acid secretion. The inhibitory effect of CRF was blocked by vagotomy and adrenalectomy but not by hypophysectomy or naloxone treatment. These results indicate that CRF acts within the brain to inhibit gastric acid secretion through vagal and adrenal mechanisms and not through hypophysiotropic effects.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tache, Y -- Goto, Y -- Gunion, M W -- Vale, W -- River, J -- Brown, M -- AM30110/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1983 Nov 25;222(4626):935-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6415815" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenalectomy ; Animals ; Brain/*drug effects ; Cerebral Cortex/drug effects ; Corticotropin-Releasing Hormone/administration & dosage/*pharmacology ; Dose-Response Relationship, Drug ; Gastric Acid/*secretion ; Hypophysectomy ; Hypothalamus/drug effects ; Male ; Pentagastrin/antagonists & inhibitors ; Rats ; Rats, Inbred Strains ; Thyrotropin-Releasing Hormone/antagonists & inhibitors ; Vagotomy
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  • 66
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-05-13
    Description: Bone morphogenetic protein and bone-derived growth factors are biochemical tools for research on induced cell differentiation and local mechanisms controlling cell proliferation. Bone morphogenetic protein irreversibly induces differentiation of perivascular mesenchymal-type cells into osteoprogenitor cells. Bone-derived growth factors are secreted by and for osteoprogenitor cells and stimulate DNA synthesis. Bone generation and regeneration are attributable to the co-efficiency of bone morphogenetic protein and bone-derived growth factors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Urist, M R -- DeLange, R J -- Finerman, G A -- DEO2103-17/DE/NIDCR NIH HHS/ -- New York, N.Y. -- Science. 1983 May 13;220(4598):680-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6403986" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Bone Development ; Bone Matrix/drug effects/physiology ; Bone Morphogenetic Proteins ; Bone Neoplasms/physiopathology ; Cattle ; Cell Differentiation ; DNA, Neoplasm/metabolism ; Dogs ; Growth Substances/*physiology ; Guinea Pigs ; Haplorhini ; Humans ; Insulin-Like Growth Factor II ; Mice ; *Osteogenesis ; Osteosarcoma/physiopathology ; Proteins/pharmacology/physiology ; Rabbits ; Rats
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  • 67
    Publication Date: 1983-07-29
    Description: Subjects treated with low or high doses of ethanol demonstrated impaired memory, particularly in tests involving the recall of poorly learned information. Zimelidine, an inhibitor of serotonin reuptake, reversed this ethanol-induced impairment. The serotonin neurotransmitter system may mediate learning and memory in humans and may determine some of the effects of alcohol on higher mental functions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weingartner, H -- Rudorfer, M V -- Buchsbaum, M S -- Linnoila, M -- New York, N.Y. -- Science. 1983 Jul 29;221(4609):472-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6223371" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Brompheniramine/analogs & derivatives/pharmacology ; Ethanol/*adverse effects ; Humans ; Learning/drug effects ; Male ; Memory/drug effects ; Memory Disorders/*chemically induced ; Mental Recall/drug effects ; Serotonin/*physiology ; Serotonin Antagonists/pharmacology ; Zimeldine
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  • 68
    Publication Date: 1983-10-14
    Description: 5 beta-Dihydrocortisol potentiated the threshold level (the smallest dose producing a measurable effect) of topically applied cortisol (0.02 percent) and dexamethasone (0.003 percent) in causing nuclear translocation of the cytosolic glucocorticoid receptor in rabbit iris-ciliary body tissue. 5 beta-Dihydrocortisol accumulates in cells cultured from trabecular meshwork specimens from patients with primary open-angle glaucoma, but not in similar cells derived from nonglaucomatous patients. In view of the sensitivity of patients with primary open-angle glaucoma to the effects of glucocorticoids in raising intraocular pressure, this potentiation may be responsible for the steroid sensitivity and for the ocular hypertension seen in this disorder.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weinstein, B I -- Gordon, G G -- Southren, A L -- EY 01313/EY/NEI NIH HHS/ -- New York, N.Y. -- Science. 1983 Oct 14;222(4620):172-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6623065" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Nucleus/metabolism ; Ciliary Body/metabolism ; Cytoplasm/metabolism ; Dexamethasone/pharmacology ; Glaucoma, Open-Angle/*physiopathology ; Hydrocortisone/pharmacology ; Intraocular Pressure/*drug effects ; Iris/metabolism ; Rabbits ; Receptors, Glucocorticoid/*drug effects/metabolism ; Receptors, Steroid/*drug effects
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  • 69
    Publication Date: 1983-10-28
    Description: Fluorinated anesthetics were observed noninvasively in the brain of intact rabbits with fluorine-19 nuclear magnetic resonance spectroscopy. High-resolution fluorine-19 spectra of halothane, methoxyflurane, and isoflurane were obtained with a surface coil centered over the calvarium. Elimination of halothane from the brain was also monitored by this technique. Residual fluorine-19 signals from halothane (or a metabolite) could be detected as long as 98 hours after termination of anesthesia. These observations demonstrate the feasibility of using this technique to study the fate of fluorinated anesthetics in live mammals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wyrwicz, A M -- Pszenny, M H -- Schofield, J C -- Tillman, P C -- Gordon, R E -- Martin, P A -- GM 29520/GM/NIGMS NIH HHS/ -- K04 GM 00503/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 Oct 28;222(4622):428-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6623084" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/*metabolism ; Halothane/*metabolism ; Isoflurane/*metabolism ; Kinetics ; Magnetic Resonance Spectroscopy ; Methoxyflurane/*metabolism ; Methyl Ethers/*metabolism ; Rabbits
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  • 70
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1984-08-17
    Description: The Interdisciplinary Panel on Carcinogenicity reviewed and reevaluated criteria for assessing evidence of carcinogenicity of chemical substances. The panel reviewed criteria applicable to data derived from human epidemiological studies and from both in vivo and in vitro laboratory studies. A critical appraisal of all these sources of information led to the conclusion that the characterization of human risk always requires interdisciplinary evaluation of the entire array of data on a case-by-case basis. Animal studies, whenever possible, should be augmented by studies of mechanisms, metabolism, and pharmacodynamics. Such studies may assist in assessing risk to man. Recognizing the utility of such data should point the way for better assessment in the future.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1984 Aug 17;225(4663):682-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6463646" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Assay ; *Carcinogens/metabolism/pharmacology ; Carcinogens, Environmental ; Cell Transformation, Neoplastic ; Dose-Response Relationship, Drug ; Environmental Exposure ; Epidemiologic Methods ; Humans ; In Vitro Techniques ; Mixed Function Oxygenases/metabolism ; Mutagenicity Tests ; Neoplasms/chemically induced ; Risk ; Time Factors ; United States
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  • 71
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1984-09-28
    Description: Recent neurophysiological findings have demonstrated that abstinent chronic alcoholics manifest deficits in event-related brain potentials. To explore possible biological antecedents of alcoholism the present study examined boys at high risk for alcoholism. Event-related brain potentials were recorded from biological sons of alcoholic fathers and matched control boys. Differences in the P3 component of the potentials were obtained between the high-risk and control subjects.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Begleiter, H -- Porjesz, B -- Bihari, B -- Kissin, B -- AA 05524/AA/NIAAA NIH HHS/ -- New York, N.Y. -- Science. 1984 Sep 28;225(4669):1493-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6474187" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Alcoholism/*genetics/physiopathology ; Analysis of Variance ; Brain/*physiopathology ; Child ; Evoked Potentials ; Fathers ; Humans ; Male ; Memory Disorders/etiology ; Risk
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  • 72
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-05-06
    Description: Arachidonic acid plays a central role in a biological control system where such oxygenated derivatives as prostaglandins, thromboxanes, and leukotrienes are mediators. The leukotrienes are formed by transformation of arachidonic acid into an unstable epoxide intermediate, leukotriene A4, which can be converted enzymatically by hydration to leukotriene B4, and by addition of glutathione to leukotriene C4. This last compound is metabolized to leukotrienes D4 and E4 by successive elimination of a gamma-glutamyl residue and glycine. Slow-reacting substance of anaphylaxis consists of leukotrienes C4, D4, and E4. The cysteinyl-containing leukotrienes are potent bronchoconstrictors, increase vascular permeability in postcapillary venules, and stimulate mucus secretion. Leukotriene B4 causes adhesion and chemotactic movement of leukocytes and stimulates aggregation, enzyme release, and generation of superoxide in neutrophils. Leukotrienes C4, D4, and E4, which are released from the lung tissue of asthmatic subjects exposed to specific allergens, seem to play a pathophysiological role in immediate hypersensitivity reactions. These leukotrienes, as well as leukotriene B4, have pro-inflammatory effects.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Samuelsson, B -- New York, N.Y. -- Science. 1983 May 6;220(4597):568-75.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6301011" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arachidonic Acids/metabolism/pharmacology/physiology ; Bronchi/drug effects ; Cats ; Chemical Phenomena ; Chemistry ; Cricetinae ; Guinea Pigs ; Haplorhini ; Humans ; Hypersensitivity, Immediate/*physiopathology ; Inflammation/*physiopathology ; Leukocytes/drug effects/metabolism ; Leukotriene B4/pharmacology/*physiology ; Mice ; Microcirculation/drug effects ; Rabbits ; Rats ; SRS-A/*physiology
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  • 73
    Publication Date: 1983-06-10
    Description: The compound 2-phenylethylamine is an "endogenous amphetamine" which may modulate central adrenergic functions. 2-Phenylethylamine is mainly metabolized by monoamine oxidase to form phenyl acetate (PAA). The 24-hour urinary excretion of PAA was measured in normal healthy volunteers and depressed patients. Patients were diagnosed according to the Diagnostic and Statistical Manual of Mental Disorders, edition 3. In 70 percent of healthy volunteers of both sexes, the excretion of PAA ranged between 70 and 175 milligrams per 24 hours (mean = 141.1 +/- 10.2). Inpatients with major depressive disorder (unipolar type) (N = 31) excreted less PAA (68.7 +/- 7.0 milligrams per 24 hours) and 55 percent of them excreted less than 70 milligrams per 24 hours; there were no significant differences in the PAA excretion between untreated patients (N = 13) and those treated with antidepressants that were not effective (N = 18). The PAA excretion was reduced to a lesser extent in 35 less severely depressed unipolar outpatients (drug-free for 1 week) (86.3 +/- 11.8 milligrams per 24 hours). These results suggest that low PAA urinary excretion may be a reliable state marker for the diagnosis of some forms of unipolar major depressive disorders.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sabelli, H C -- Fawcett, J -- Gusovsky, F -- Javaid, J -- Edwards, J -- Jeffriess, H -- New York, N.Y. -- Science. 1983 Jun 10;220(4602):1187-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857245" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Aged ; Antidepressive Agents/pharmacology ; Depressive Disorder/*diagnosis/urine ; Female ; Humans ; Male ; Middle Aged ; Phenethylamines/metabolism/physiology ; Phenylacetates/*urine
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  • 74
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-07-01
    Description: Although official efforts to control air pollution have traditionally focused on outdoor air, it is now apparent that elevated contaminant concentrations are common inside some private and public buildings. Concerns about potential public health problems due to indoor air pollution are based on evidence that urban residents typically spend more than 90 percent of their time indoors, concentrations of some contaminants are higher indoors than outdoors, and for some pollutants personal exposures are not characterized adequately by outdoor measurements. Among the more important indoor contaminants associated with health or irritation effects are passive tobacco smoke, radon decay products, carbon monoxide, nitrogen dioxide, formaldehyde, asbestos fibers, microorganisms, and aeroallergens. Efforts to assess health risks associated with indoor air pollution are limited by insufficient information about the number of people exposed, the pattern and severity of exposures, and the health consequences of exposures. An overall strategy should be developed to investigate indoor exposures, health effects, control options, and public policy alternatives.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Spengler, J D -- Sexton, K -- ES-01108/ES/NIEHS NIH HHS/ -- New York, N.Y. -- Science. 1983 Jul 1;221(4605):9-17.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857273" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Air Microbiology ; Air Pollution/*adverse effects/prevention & control ; Air Pollution, Radioactive/adverse effects ; Asbestos/adverse effects ; Carbon Monoxide/adverse effects ; Child ; Construction Materials/adverse effects ; Formaldehyde/adverse effects ; Fuel Oils/adverse effects ; Household Articles ; Humans ; Public Policy ; Radon/adverse effects ; Smoke/adverse effects ; Smoking ; Tobacco Smoke Pollution/adverse effects ; Ventilation
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  • 75
    Publication Date: 1983-03-18
    Description: Flow cytometry revealed that, in the presence of tritiated thymidine, a greater percentage of phytohemagglutinin-stimulated lymphocytes from old human donors were arrested in the G2 or M phase than were cells from young donors. Furthermore, lymphocytes from old donors showed significantly more chromosomal damage than did lymphocytes from young donors. Lymphocyte cultures from old or young donors not exposed to tritiated thymidine had the same percentage of cycling lymphocytes in G2 or M, although the number of lymphocytes stimulated by phytohemagglutinin to enter the cell cycle was significantly lower in cultures from old donors. Thus, the impaired incorporation of tritiated thymidine by phytohemagglutinin-exposed lymphocytes from old humans reflects both an impaired proliferative response to phytohemagglutinin and an increased sensitivity to the radiobiological effects of tritiated thymidine.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Staiano-Coico, L -- Darzynkiewicz, Z -- Hefton, J M -- Dutkowski, R -- Darlington, G J -- Weksler, M E -- New York, N.Y. -- Science. 1983 Mar 18;219(4590):1335-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6828861" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; *Aging ; Cell Cycle/*radiation effects ; Chromosomes/*radiation effects/ultrastructure ; DNA Repair/radiation effects ; Humans ; Middle Aged ; Thymidine/adverse effects ; Tritium
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  • 76
    Publication Date: 1984-12-21
    Description: Smell identification ability was measured in 1955 persons ranging in age from 5 to 99 years. On the average, women outperformed men at all ages, and nonsmokers outperformed smokers. Peak performance occurred in the third through fifth decades and declined markedly after the seventh. More than half of those 65 to 80 years old evidenced major olfactory impairment. After 80 years, more than three-quarters evidenced major impairment. Given these findings, it is not surprising that many elderly persons complain that food lacks flavor and that the elderly account for a disproportionate number of accidental gas poisoning cases each year.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Doty, R L -- Shaman, P -- Applebaum, S L -- Giberson, R -- Siksorski, L -- Rosenberg, L -- NS 16265/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1984 Dec 21;226(4681):1441-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6505700" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Aged ; *Aging ; Child ; Child, Preschool ; Female ; Humans ; Male ; Middle Aged ; Sensory Thresholds ; Sex Factors ; Smell/*physiology ; Smoking
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  • 77
    Publication Date: 1984-03-30
    Description: Coronary arteries from hearts of cardiac patients contain significantly higher concentrations of histamine than do those from noncardiac patients. The coronary vessels of cardiac patients are also hyperresponsive to histamine and serotonin. These differences between groups of patients suggest an explanation for coronary artery spasm in heart disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kalsner, S -- Richards, R -- New York, N.Y. -- Science. 1984 Mar 30;223(4643):1435-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6701530" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; Animals ; Arteriosclerosis/physiopathology ; Catecholamines/analysis ; Cattle ; Coronary Vasospasm/*physiopathology ; Coronary Vessels/analysis/drug effects/*physiopathology ; Female ; Histamine/*analysis/pharmacology ; Humans ; Male ; Middle Aged ; Norepinephrine/pharmacology ; Serotonin/analysis/pharmacology
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  • 78
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1984-04-27
    Description: Angiogenesis was observed and measured after injection of human follicular fluid into rabbit corneas. Undiluted human follicular fluid stimulated angiogenesis in every case, with new blood vessels visible 3 days after injection and extending 2.0 millimeters from the corneal scleral limbus into the injection site by day 15. Stimulation of angiogenesis was lost by heating or diluting the follicular fluid but was retained after charcoal stripping or dialysis. Human follicular fluid contains an angiogenic factor that may be associated with perifollicular neovascularization during folliculogenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Frederick, J L -- Shimanuki, T -- diZerega, G S -- New York, N.Y. -- Science. 1984 Apr 27;224(4647):389-90.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6200930" target="_blank"〉PubMed〈/a〉
    Keywords: Angiogenesis Inducing Agents/*analysis ; Animals ; Body Fluids/*analysis ; Chorionic Gonadotropin/pharmacology ; Cornea/blood supply ; Dialysis ; Female ; Growth Substances/*analysis ; Hot Temperature ; Humans ; Menstruation ; *Neovascularization, Pathologic ; Ovarian Follicle/*analysis ; Rabbits
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  • 79
    Publication Date: 1984-05-04
    Description: Peripheral blood lymphocytes from patients with the acquired immunodeficiency syndrome (AIDS) or with signs or symptoms that frequently precede AIDS (pre-AIDS) were grown in vitro with added T-cell growth factor and assayed for the expression and release of human T-lymphotropic retroviruses (HTLV). Retroviruses belonging to the HTLV family and collectively designated HTLV-III were isolated from a total of 48 subjects including 18 of 21 patients wih pre-AIDS, three of four clinically normal mothers of juveniles with AIDS, 26 of 72 adult and juvenile patients with AIDS, and from one of 22 normal male homosexual subjects. No HTLV-III was detected in or isolated from 115 normal heterosexual subjects. The number of HTLV-III isolates reported here underestimates the true prevalence of the virus since many specimens were received in unsatisfactory condition. Other data show that serum samples from a high proportion of AIDS patients contain antibodies to HTLV-III. That these new isolates are members of the HTLV family but differ from the previous isolates known as HTLV-I and HTLV-II is indicated by their morphological, biological, and immunological characteristics. These results and those reported elsewhere in this issue suggest that HTLV-III may be the primary cause of AIDS.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gallo, R C -- Salahuddin, S Z -- Popovic, M -- Shearer, G M -- Kaplan, M -- Haynes, B F -- Palker, T J -- Redfield, R -- Oleske, J -- Safai, B -- New York, N.Y. -- Science. 1984 May 4;224(4648):500-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6200936" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/blood/*microbiology ; Adult ; Antigens, Viral/analysis ; Cells, Cultured ; Cytopathogenic Effect, Viral ; Deltaretrovirus/*isolation & purification/physiology/ultrastructure ; Female ; Homosexuality ; Humans ; Immune Sera/pharmacology ; Interferon Type I/immunology ; Male ; RNA-Directed DNA Polymerase/metabolism ; Risk ; T-Lymphocytes/microbiology
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  • 80
    Publication Date: 1984-11-16
    Description: Clonidine, an alpha-2-adrenergic agonist, significantly reduces opiate withdrawal. Fifteen heavy smokers abstained from cigarettes on three separate occasions and received instead clonidine, placebo, or the benzodiazepine alprazolam. Clonidine and alprazolam diminished withdrawal symptoms. The two drugs suppressed anxiety, tension, irritability, and restlessness equally but clonidine had a greater effect than alprazolam on cigarette craving. These observations suggest that noradrenergic activity is a common feature in the pathophysiology of withdrawal and that a special relationship exists between central noradrenergic activity and craving.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Glassman, A H -- Jackson, W K -- Walsh, B T -- Roose, S P -- Rosenfeld, B -- New York, N.Y. -- Science. 1984 Nov 16;226(4676):864-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6387913" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Alprazolam ; Anxiety/drug therapy ; Benzodiazepines/therapeutic use ; Clinical Trials as Topic ; Clonidine/*therapeutic use ; Double-Blind Method ; Female ; Humans ; Male ; *Smoking ; Substance Withdrawal Syndrome/*drug therapy
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  • 81
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1984-06-29
    Description: Protein 4.1 is a membrane skeletal protein that converts the low-affinity interaction between spectrin and actin into a high-affinity ternary complex of spectrin, protein 4.1, and actin that is essential to the structural stability of the erythrocyte. Pig brain was shown to contain an 87-kilodalton immunoreactive analog of protein 4.1 that has partial sequence homology with pig erythrocyte protein 4.1 and the same location as spectrin in the cortical cytoplasm of neuronal and glial cell types of the cerebellum.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goodman, S R -- Casoria, L A -- Coleman, D B -- Zagon, I S -- HL 26059/HL/NHLBI NIH HHS/ -- NS19357/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1984 Jun 29;224(4656):1433-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6374897" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/metabolism ; Animals ; Blood Proteins/*metabolism ; Brain/*metabolism ; *Cytoskeletal Proteins ; Erythrocytes/metabolism ; Fluorescent Antibody Technique ; Immunoglobulin G/immunology ; Male ; *Membrane Proteins ; *Neuropeptides ; Rabbits ; Spectrin/metabolism ; Swine
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  • 82
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1984-01-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G -- New York, N.Y. -- Science. 1984 Jan 27;223(4634):381-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6362006" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Cholesterol/*blood ; Cholesterol, Dietary ; Cholestyramine Resin/*therapeutic use ; Clinical Trials as Topic ; Double-Blind Method ; Heart Diseases/etiology/*prevention & control ; Humans ; Hypercholesterolemia/complications/drug therapy ; Male ; Middle Aged ; Risk
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  • 83
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1984-06-08
    Description: Recent studies have uncovered a synaptic process with properties required for an intermediate step in memory storage. Calcium rapidly and irreversibly increases the number of receptors for glutamate (a probable neurotransmitter) in forebrain synaptic membranes by activating a proteinase (calpain) that degrades fodrin, a spectrin-like protein. This process provides a means through which physiological activity could produce long-lasting changes in synaptic chemistry and ultrastructure. Since the process is only poorly represented in the brain stem, it is hypothesized to be responsible for those forms of memory localized in the telencephalon.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lynch, G -- Baudry, M -- AG 00538/AG/NIA NIH HHS/ -- MH 19793-12/MH/NIMH NIH HHS/ -- NH 00358-03/NH/NIH HHS/ -- New York, N.Y. -- Science. 1984 Jun 8;224(4653):1057-63.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6144182" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Calcium/physiology ; Calpain ; Carrier Proteins/physiology ; Cerebral Cortex/physiology ; Endopeptidases/physiology ; Glutamates/physiology ; Glutamic Acid ; Hippocampus/physiology ; Humans ; Learning/physiology ; Leupeptins/pharmacology ; Memory/*physiology ; *Microfilament Proteins ; Neuronal Plasticity ; Rabbits ; Rats ; Receptors, Cell Surface/physiology ; Receptors, Glutamate ; Receptors, Neurotransmitter/physiology ; Synapses/physiology ; Synaptic Membranes/physiology ; Telencephalon/physiology
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  • 84
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1984-01-20
    Description: Classical conditioning of the eyelid response in the rabbit was used to investigate the neuronal structures mediating basic associative learning of discrete, adaptive responses. Lesions of the ipsilateral dentate-interpositus nuclei, but not of the cerebellar cortex, abolished the learned eyeblink response. Recordings from these nuclei have revealed neuronal responses related to the learning of the response. Stimulating these recording sites produced the eyelid response. The dentate-interpositus nuclei were concluded to be critically involved in the learning and production of classically conditioned responses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McCormick, D A -- Thompson, R F -- 1-F31-MH08673/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1984 Jan 20;223(4633):296-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6701513" target="_blank"〉PubMed〈/a〉
    Keywords: Acoustic Stimulation ; Animals ; *Blinking ; Cerebellar Cortex/physiology ; Cerebellum/*physiology ; *Conditioning, Classical ; *Conditioning, Eyelid ; Rabbits
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  • 85
    Publication Date: 1984-06-29
    Description: Human T lymphocytes transformed by human T cell leukemia-lymphoma viruses or activated by lectins were found to produce stimulating factors that promoted both proliferation and maturation of oligodendroglial and astroglial cells in vitro.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Merrill, J E -- Kutsunai, S -- Mohlstrom, C -- Hofman, F -- Groopman, J -- Golde, D W -- CA 30388/CA/NCI NIH HHS/ -- CA 32737/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1984 Jun 29;224(4656):1428-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6610212" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Animals ; Astrocytes/*drug effects ; Cell Division/*drug effects ; Cell Line ; Growth Substances/*pharmacology ; Humans ; Lymphocyte Activation ; Lymphokines/pharmacology ; Neuroglia/*drug effects ; Oligodendroglia/*drug effects ; Rats ; Receptors, Fc/metabolism ; T-Lymphocytes/*physiology
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  • 86
    Publication Date: 1984-12-14
    Description: The possibility that hypersecretion of corticotropin-releasing factor (CRF) contributes to the hyperactivity of the hypothalamo-pituitary-adrenal axis observed in patients with major depression was investigated by measuring the concentration of this peptide in cerebrospinal fluid of normal healthy volunteers and in drug-free patients with DSM-III diagnoses of major depression, schizophrenia, or dementia. When compared to the controls and the other diagnostic groups, the patients with major depression showed significantly increased cerebrospinal fluid concentrations of CRF-like immunoreactivity; in 11 of the 23 depressed patients this immunoreactivity was greater than the highest value in the normal controls. These findings are concordant with the hypothesis that CRF hypersecretion is, at least in part, responsible for the hyperactivity of the hypothalamo-pituitary-adrenal axis characteristic of major depression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nemeroff, C B -- Widerlov, E -- Bissette, G -- Walleus, H -- Karlsson, I -- Eklund, K -- Kilts, C D -- Loosen, P T -- Vale, W -- MH-36157/MH/NIMH NIH HHS/ -- MH-39415/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1984 Dec 14;226(4680):1342-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6334362" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; Corticotropin-Releasing Hormone/*cerebrospinal fluid ; Dementia/cerebrospinal fluid ; Depressive Disorder/*cerebrospinal fluid ; Female ; Humans ; Male ; Middle Aged ; Radioimmunoassay ; Schizophrenia/cerebrospinal fluid
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  • 87
    Publication Date: 1984-04-27
    Description: Immunodominant, disulfide-bond independent epitopes recognized by human antibodies to hepatitis B virus (HBV) are located within the 55-residue amino terminal portion (coded for by the pre-S region of HBV DNA) of minor HBV envelope components larger than the major protein constituents encoded by the S gene. A peptide having the sequence of the first 26 amino acids from the amino terminal methionine was synthesized and elicited antibodies (at dilutions of greater than or equal to 1 to 10(5) ) to the HBV envelope. These antibodies can be utilized for diagnostic tests. The immunogenicity of the peptide was substantially increased by covalent attachment to liposomes. The disulfide bond-independent determinants on sequences coded for by the pre-S gene may be more easily mimicked by peptide analogs than "conformational" determinants on the S-gene product.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Neurath, A R -- Kent, S B -- Strick, N -- 9011/PHS HHS/ -- New York, N.Y. -- Science. 1984 Apr 27;224(4647):392-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6200931" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Epitopes/*analysis/genetics/immunology ; *Genes, Viral ; Hepatitis B Antibodies/biosynthesis ; Hepatitis B Surface Antigens/analysis/genetics/*immunology ; Hepatitis B virus/genetics/*immunology ; Immunization ; Liposomes ; Peptides/chemical synthesis/genetics/*immunology ; Rabbits
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  • 88
    Publication Date: 1984-08-17
    Description: Antisera to a synthetic c-myc peptide and to c-myc antigens synthesized from various portions of the human gene expressed in Escherichia coli were used in order to characterize the protein product of the human c-myc oncogene. Although the deduced molecular weight of the human c-myc protein is 49,000, these antisera precipitate a protein from human cells that migrates in sodium dodecyl sulfate-polyacrylamide gel as if its molecular weight were 65,000. In addition, the mouse c-myc protein, whether synthesized in cells or in a cell-free system directed by pure, synthetic messenger RNA, has analogous properties and is immunoprecipitated by the antiserum to the human c-myc protein. Similar proteins are immunoprecipitated from monkey, rat, hamster, and frog cells, suggesting evolutionary conservation of antigenic structure of the c-myc protein among vertebrates. In addition, and in a manner consistent with the behavior of its messenger RNA, the immunoprecipitable c-myc protein is sharply induced by the action of mitogens on resting human T cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Persson, H -- Hennighausen, L -- Taub, R -- DeGrado, W -- Leder, P -- New York, N.Y. -- Science. 1984 Aug 17;225(4663):687-93.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6431612" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibodies, Neoplasm/*immunology ; Base Sequence ; *Cell Division ; Chickens ; Cricetinae ; DNA, Neoplasm/genetics ; DNA, Recombinant/metabolism ; Electrophoresis, Polyacrylamide Gel ; Haplorhini ; Humans ; Mice ; Mitogens/pharmacology ; Molecular Weight ; Neoplasm Proteins/genetics/*immunology ; *Oncogenes ; RNA, Messenger/genetics ; Rabbits ; Rats
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  • 89
    Publication Date: 1983-05-27
    Description: Schizophrenic patients with high ventricle brain ratios and cortical brain atrophy, as shown by computerized tomography, had decreased spinal fluid concentrations of homovanillic acid and dopamine-beta-hydroxylase activity. These decreased cerebral spinal fluid concentrations in patients with brain atrophy support the proposal of disturbed noradrenaline and dopamine neurotransmission in a subgroup of schizophrenic patients.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉van Kammen, D P -- Mann, L S -- Sternberg, D E -- Scheinin, M -- Ninan, P T -- Marder, S R -- van Kammen, W B -- Rieder, R O -- Linnoila, M -- New York, N.Y. -- Science. 1983 May 27;220(4600):974-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6133351" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Aged ; Animals ; Antipsychotic Agents/adverse effects ; Atrophy ; Brain/metabolism/*pathology ; Dopamine/metabolism ; Dopamine beta-Hydroxylase/*cerebrospinal fluid ; Homovanillic Acid/*cerebrospinal fluid ; Humans ; Middle Aged ; Phenylacetates/*cerebrospinal fluid ; Rats ; Schizophrenia/*cerebrospinal fluid ; Tomography, X-Ray Computed
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  • 90
    Publication Date: 1984-09-28
    Description: Antibodies specific for human T-cell leukemia-lymphoma virus type I (HTLV-I) were demonstrated in serum samples from various groups of people in South Africa, Uganda, Ghana, Nigeria, Tunisia, and Egypt. The samples had been collected for other purposes and were presumably selected without bias toward clinical conditions associated with HTLV infections. Regional differences in antibody positivity were observed, indicating widely distributed loci of occurrence of HTLV on the African continent in people of both black and white ancestry. Two patients with high titers of antibody to HTLV-I had some signs of adult T-cell leukemia-lymphoma. In several groups a high frequency of false positive serum reactions was indicated when specific confirmation steps were included in the assay. Further characterization of these sera revealed highly elevated immunoglobulin levels, possibly due to polyclonal activation of immunoglobulin synthesis in these subjects. The possibility that related cross-reactive human retroviruses coexist in the same groups was not eliminated.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Saxinger, W -- Blattner, W A -- Levine, P H -- Clark, J -- Biggar, R -- Hoh, M -- Moghissi, J -- Jacobs, P -- Wilson, L -- Jacobson, R -- New York, N.Y. -- Science. 1984 Sep 28;225(4669):1473-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6089348" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Africa ; African Continental Ancestry Group ; Antibodies, Viral/*analysis ; Burkitt Lymphoma/immunology ; Cross Reactions ; Deltaretrovirus/*immunology ; Enzyme-Linked Immunosorbent Assay ; European Continental Ancestry Group ; False Positive Reactions ; Female ; Humans ; Lymphoma/immunology ; Male ; Middle Aged ; Retroviridae/immunology ; T-Lymphocytes
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  • 91
    Publication Date: 1984-06-15
    Description: Normal sleepers underwent sleep recordings and daytime tests of sleep tendency, performance, and mood while being shifted 180 degrees in their sleep-wake schedule. After two baseline 24-hour periods, subjects postponed sleep until noon. For the next three 24-hour periods, they were in bed from 1200 to 2000 and received triazolam, flurazepam, or placebo at bedtime in parallel groups. Placebo subjects showed significant sleep loss after the shift. Active medication reversed this sleep loss. Despite good sleep, flurazepam subjects appeared most impaired of the three groups on objective assessments of waking function; triazolam subjects were least impaired.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Seidel, W F -- Roth, T -- Roehrs, T -- Zorick, F -- Dement, W C -- NIMH 05804/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1984 Jun 15;224(4654):1262-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6729454" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Arousal/drug effects ; Benzodiazepines/pharmacology/*therapeutic use ; Emotions/drug effects ; Female ; Flurazepam/pharmacology/therapeutic use ; Humans ; Male ; Sleep/drug effects ; Sleep Wake Disorders/*drug therapy ; Triazolam/pharmacology/therapeutic use
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  • 92
    Publication Date: 1984-01-13
    Description: The cytotoxic activity of natural killer cells was investigated in rats subjected to one of two inescapable footshock stress paradigms, both of which induce analgesia, but only one via activation of opioid mechanisms. Splenic natural killer cell activity was suppressed by the opioid, but not the nonopioid, form of stress. This suppression was blocked by the opioid antagonist naltrexone. Similar suppression of natural killer activity was induced by high doses of morphine. These results suggest that endogenous opioid peptides mediate the suppressive effect of certain forms of stress on natural killer cell cytotoxicity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shavit, Y -- Lewis, J W -- Terman, G W -- Gale, R P -- Liebeskind, J C -- MH15795/MH/NIMH NIH HHS/ -- NS07628/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1984 Jan 13;223(4632):188-90.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6691146" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cytotoxicity, Immunologic/drug effects ; Dose-Response Relationship, Drug ; Endorphins/*physiology ; Female ; Killer Cells, Natural/*immunology ; Morphine/*pharmacology ; Naltrexone/pharmacology ; Rats ; Rats, Inbred F344 ; Stress, Physiological/*immunology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 93
    Publication Date: 1984-05-04
    Description: In cats, infection with T-lymphotropic retroviruses can cause T-cell proliferation and leukemia or T-cell depletion and immunosuppression. In humans, some highly T4 tropic retroviruses called HTLV-I can cause T-cell proliferation and leukemia. The subgroup HTLV-II also induces T-cell proliferation in vitro, but its role in disease is unclear. Viruses of a third subgroup of human T-lymphotropic retroviruses, collectively designated HTLV-III, have been isolated from cultured cells of 48 patients with acquired immunodeficiency syndrome (AIDS). The biological properties of HTLV-III and immunological analyses of its proteins show that this virus is a member of the HTLV family, and that it is more closely related to HTLV-II than to HTLV-I. Serum samples from 88 percent of patients with AIDS and from 79 percent of homosexual men with signs and symptoms that frequently precede AIDS, but from less than 1 percent of heterosexual subjects, have antibodies reactive against antigens of HTLV-III. The major immune reactivity appears to be directed against p41, the presumed envelope antigen of the virus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sarngadharan, M G -- Popovic, M -- Bruch, L -- Schupbach, J -- Gallo, R C -- New York, N.Y. -- Science. 1984 May 4;224(4648):506-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6324345" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*immunology/microbiology ; Adult ; Antibodies, Viral/*analysis ; Antigens, Viral/immunology ; Child, Preschool ; Deltaretrovirus/*immunology ; Enzyme-Linked Immunosorbent Assay ; Female ; Homosexuality ; Humans ; Infant ; Male ; Middle Aged ; Sarcoma, Kaposi/immunology ; Substance-Related Disorders ; T-Lymphocytes/microbiology ; Viral Envelope Proteins/immunology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 94
    Publication Date: 1984-04-27
    Description: The gene coding for the circumsporozoite antigen of the malaria parasite Plasmodium knowlesi was inserted into the vaccinia virus genome under the control of a defined vaccinia virus promoter. Cells infected with the recombinant virus synthesized polypeptides of 53,000 to 56,000 daltons that reacted with monoclonal antibody against the repeating epitope of the malaria protein. Furthermore, rabbits vaccinated with the recombinant virus produced antibodies that bound specifically to sporozoites. These data provide evidence for expression of a cloned malaria gene in mammalian cells and illustrate the potential of vaccinia virus recombinants as live malaria vaccines.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Smith, G L -- Godson, G N -- Nussenzweig, V -- Nussenzweig, R S -- Barnwell, J -- Moss, B -- New York, N.Y. -- Science. 1984 Apr 27;224(4647):397-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6200932" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibody Formation ; Antigens, Surface/analysis/*genetics/immunology ; *Cloning, Molecular ; *DNA, Recombinant ; Epitopes/immunology ; Genes ; Genes, Viral ; Genetic Vectors ; Operon ; Plasmodium/*genetics/immunology ; Rabbits ; Vaccination ; Vaccinia virus/*genetics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 95
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1984-05-11
    Description: Electrical stimulation techniques were used to produce a long-lasting potentiation of synaptic transmission in the hippocampus of naive rabbits. Animals were then classically conditioned. Long-term potentiation of the hippocampus before training increased the rate at which animals subsequently learned the conditioning task. This result has significance for potential cellular mechanisms of associative learning.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Berger, T W -- MH 00343/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1984 May 11;224(4649):627-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6324350" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Electric Stimulation ; Hippocampus/*physiology ; Learning/*physiology ; Male ; Nictitating Membrane/physiology ; Rabbits ; Receptors, Neurotransmitter/physiology ; Synapses/physiology ; *Synaptic Transmission
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 96
    Publication Date: 1984-06-15
    Description: In an insect, the tobacco hornworm Manduca sexta, the cerebral neuropeptide prothoracicotropic hormone (PTTH), the primary effector of postembryonic development, exists as two molecular forms. These two PTTH's elicit characteristic in vitro dose responses of activation of prothoracic glands from different developmental stages, an indication that during development the glands change in their sensitivity to the neurohormones. Both PTTH's are active in a specific in situ bioassay. Since they may be released in situ at stage-specific times to evoke distinctly different developmental responses, the PTTH neuroendocrine axis appears to be an effective system for determining the functions of molecular forms of a neurohormone in the regulation of growth and development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bollenbacher, W E -- Katahira, E J -- O'Brien, M -- Gilbert, L I -- Thomas, M K -- Agui, N -- Baumhover, A H -- AM-30118/AM/NIADDK NIH HHS/ -- AM-31642/AM/NIADDK NIH HHS/ -- NS-18791/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1984 Jun 15;224(4654):1243-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6732895" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Assay ; Bombyx ; Chromatography, Gel ; Dose-Response Relationship, Drug ; Insect Hormones/pharmacology/*physiology ; Insects/drug effects/growth & development/physiology ; Isoelectric Focusing ; Larva
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 97
    Publication Date: 1984-06-08
    Description: A domain of DNA designated N-myc is amplified 20- to 140-fold in human neuroblastoma cell lines but not in cell lines from other tumor types. N-myc has now been found to be amplified in neuroblastoma tissue from 24 of 63 untreated patients (38 percent). The extent of amplification appears to be bimodal, with amplification of 100- to 300-fold in 12 cases and 3- to 10-fold in 10 others. Amplification was found in 0 of 15 patients with stage 1 or 2 disease, whereas 24 of 48 cases (50 percent) with stage 3 or 4 had evidence of N-myc amplification. These data indicate that N-myc amplification is a common event in untreated human neuroblastomas. Furthermore, N-myc amplification is highly correlated with advanced stages of disease (P less than 0.001) and with the ability to grow in vitro as an established cell line, both of which are associated with a poor prognosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brodeur, G M -- Seeger, R C -- Schwab, M -- Varmus, H E -- Bishop, J M -- CA02971/CA/NCI NIH HHS/ -- CA13539/CA/NCI NIH HHS/ -- CA17829/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1984 Jun 8;224(4653):1121-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6719137" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Aged ; Cell Line ; Child ; Child, Preschool ; DNA, Neoplasm/genetics ; Eye Neoplasms/genetics ; *Gene Amplification ; Humans ; Infant ; Lymphatic Metastasis ; Middle Aged ; Neuroblastoma/*genetics/physiopathology ; Nucleic Acid Hybridization ; *Oncogenes ; Prognosis ; Retinoblastoma/genetics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 98
    Publication Date: 1983-08-19
    Description: The cerebral metabolic rate for glucose, as measured with positron emission tomography and fluorine-18-labeled 2-deoxy-D-glucose, was significantly higher in four healthy young subjects with trisomy 21 syndrome (Down's syndrome) than the mean rate in healthy young controls. The rate of cerebral glucose utilization in the frontal lobe of a 51-year-old subject with Down's syndrome was significantly lower than the rate in the young subjects with this syndrome, but approximated the rate in middle-aged controls. Thus glucose utilization by the brain appears to be excessive in young adults with Down's syndrome but may decline with age in some brain regions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schwartz, M -- Duara, R -- Haxby, J -- Grady, C -- White, B J -- Kessler, R M -- Kay, A D -- Cutler, N R -- Rapoport, S I -- New York, N.Y. -- Science. 1983 Aug 19;221(4612):781-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6224294" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Age Factors ; Brain/*physiopathology ; Dementia/etiology ; Down Syndrome/complications/*physiopathology ; Female ; Glucose/*metabolism ; Humans ; Male ; Middle Aged
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  • 99
    Publication Date: 1984-06-08
    Description: An H1 histone gene was isolated from a 15-kilobase human DNA genomic sequence. The presence of H2A, H2B, H3, and H4 genes in this same 15-kilobase fragment indicates that mammalian core and H1 histone genes are clustered.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carozzi, N -- Marashi, F -- Plumb, M -- Zimmerman, S -- Zimmerman, A -- Coles, L S -- Wells, J R -- Stein, G -- Stein, J -- GM 32010/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1984 Jun 8;224(4653):1115-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6719136" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; DNA/genetics ; *Genes ; HeLa Cells ; Histones/*genetics ; Humans ; Nucleic Acid Hybridization ; Rabbits ; Trout ; Xenopus
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 100
    Publication Date: 1984-06-22
    Description: Treatment of exponentially growing Chinese hamster ovary cells with bleomycin causes a dose-dependent decrease in cell survival due to DNA damage. This lethal effect can be potentiated by the addition of a nonlethal dose of the anticalmodulin drug N-(4-aminobutyl)-5-chloro-2-naphthalenesulfonamide ( W13 ) but not its inactive analog N-(4-aminobutyl)-2-naphthalenesulfonamide ( W12 ). By preventing the repair of damaged DNA, W13 also inhibits recovery from potentially lethal damage induced by bleomycin. These data suggest a role for calmodulin in the DNA repair pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chafouleas, J G -- Bolton, W E -- Means, A R -- RR-05425/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1984 Jun 22;224(4655):1346-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6203171" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bleomycin/*pharmacology ; Calmodulin/*antagonists & inhibitors/*physiology ; Cell Division/drug effects ; Cell Line ; Cell Survival/drug effects ; Cricetinae ; Cricetulus ; DNA Repair/*drug effects ; Dose-Response Relationship, Drug ; Drug Synergism ; Sulfonamides/pharmacology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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