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  • 1
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    Multiple daily amphetamine administration: behavioral and neurochemical alterations (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    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
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Separation of morphine analgesia from physical dependence (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-10-26
    Description: Intravenous infusion of morphine sulfate in rats for 24 hours produced marked opioid dependence, manifested by a series of well-documented signs appearing after injection of the opiate antagonist naloxone. Treatment of rats with naloxonazine significantly reduced the analgesia associated with the morphine infusions for more than 24 hours. Furthermore, 14 of 16 withdrawal signs observed in naloxonazine-treated rats were virtually identical to those in rats that received morphine alone. These results raise the possibility that different receptor mechanisms mediate morphine analgesia and many of the withdrawal signs associated with morphine dependence.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ling, G S -- MacLeod, J M -- Lee, S -- Lockhart, S H -- Pasternak, G W -- DA 002615/DA/NIDA NIH HHS/ -- NS 00415/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1984 Oct 26;226(4673):462-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6541807" target="_blank"〉PubMed〈/a〉
    Keywords: *Analgesia ; Animals ; Humans ; Male ; Morphine/*pharmacology ; Naloxone/*analogs & derivatives/pharmacology ; Rats ; Rats, Inbred Strains ; Substance Withdrawal Syndrome ; *Substance-Related Disorders
    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
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    Sparing of the brain in neonatal undernutrition: amino acid transport and incorporation into brain and muscle (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-02-22
    Description: Rates of tyrosine and lysine transport and incorporation into protein were measured in control and undernourished weanling rats. Undernutrition was induced by feeding lactating dams a low protein diet (12 percent casein) from birth to day 21. At weaning, body and brain weights of undernourished rats were 50 percent and 88 percent, respectively, of control values. Lysine and tyrosine transport rates into skeletal muscle were reduced by over 75 percent, more than twice the reduction seen in brain. Rates of amino acid incorporation into muscle protein were reduced by approximately 50 percent; the change in rate of incorporation into brain protein was not statistically significant. These data indicate that, in spite of marked retardation of amino acid transport into brain, the brain seems fully capable of maintaining normal rates of protein synthesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Freedman, L S -- Samuels, S -- Fish, I -- Schwartz, S A -- Lange, B -- Katz, M -- Morgano, L -- New York, N.Y. -- Science. 1980 Feb 22;207(4433):902-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6766565" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acids/*metabolism ; Animals ; Animals, Newborn/metabolism ; Biological Transport ; Body Weight ; Brain/growth & development/*metabolism ; Disease Models, Animal ; Female ; Lactation ; Male ; Muscles/*metabolism ; Pregnancy ; Protein-Energy Malnutrition/*metabolism ; Rats
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Shadows of thought: shifting lateralization of human brain electrical patterns during brief visuomotor task (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-04-01
    Description: Dynamic spatial patterns of correlation of electrical potentials recorded from the human brain were shown in diagrams generated by mathematical pattern recognition. The patterns for "move" and "no-move" variants of a brief visuospatial task were compared. In the interval spanning the P300 peak of the evoked potential, higher correlations of the right parietal electrode with occipital and central electrodes distinguished the no-move task from the move task. In the next interval, spanning the readiness potential in the move task, higher correlations of the left central electrode with occipital and frontal electrodes characterized the move task. These results conform to neuropsychological expectations of localized processing and their temporal sequence. The rapid change in the side and site of localized processes may account for conflicting reports of lateralization in studies which lacked adequate spatial and temporal resolution.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gevins, A S -- Schaffer, R E -- Doyle, J C -- Cutillo, B A -- Tannehill, R S -- Bressler, S L -- New York, N.Y. -- Science. 1983 Apr 1;220(4592):97-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6828886" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Brain/*physiology ; Electroencephalography ; Evoked Potentials ; Female ; Functional Laterality/*physiology ; Humans ; Male ; Psychomotor Performance/*physiology
    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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  • 5
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    Isolation of human T-cell leukemia virus in acquired immune deficiency syndrome (AIDS) (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-05-20
    Description: Several isolates of a human type-C retrovirus belonging to one group, known as human T-cell leukemia virus (HTLV), have previously been obtained from patients with adult T-cell leukemia or lymphoma. The T-cell tropism of HTLV and its prevalence in the Caribbean basin prompted a search for it in patients with the epidemic T-cell immune deficiency disorder known as AIDS. Peripheral blood lymphocytes from one patient in the United States and two in France were cultured with T-cell growth factor (TCGF) an shown to express HTLV antigens. Virus from the U.S. patient was isolated and characterized and shown to be related to HTLV subgroup I. The virus was also transmitted into normal human T cells from umbilical cord blood of a newborn. Whether or not HTLV-I or other retroviruses of this family with T-cell tropism cause AIDS, it is possible that patients from whom the virus can be isolated can also transmit it to others. If the target cell of AIDS is the mature T cell as suspected, the methods used in these studies may prove useful for the long-term growth of these cells and for the identification of antigens specific for the etiological agent of AIDS.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gallo, R C -- Sarin, P S -- Gelmann, E P -- Robert-Guroff, M -- Richardson, E -- Kalyanaraman, V S -- Mann, D -- Sidhu, G D -- Stahl, R E -- Zolla-Pazner, S -- Leibowitch, J -- Popovic, M -- New York, N.Y. -- Science. 1983 May 20;220(4599):865-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6601823" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/etiology/immunology/*microbiology ; Animals ; Antibodies, Monoclonal/immunology ; Antibodies, Viral/immunology ; Female ; Humans ; Immunity, Cellular ; Male ; Retroviridae/*isolation & purification ; T-Lymphocytes/microbiology ; Tumor Virus Infections/complications/*microbiology/transmission
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Long-term antidepressant treatment decreases spiroperidol-labeled serotonin receptor binding (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-10-03
    Description: Antidepressants compete at several neurotransmitter receptor binding site, but drug affinities do not correlate with clinical efficacy. Long-term, but not short-term, antidepressant treatment decreases the numbers of both serotonin and beta-adrenergic receptors. The decrease in the number of receptor sites is most marked for [3H]spiroperidol-labeled serotonin receptors and is characteristic for antidepressants of several classes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Peroutka, S J -- Snyder, S H -- 5T32GM0309/GM/NIGMS NIH HHS/ -- DA00266/DA/NIDA NIH HHS/ -- MH18501/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1980 Oct 3;210(4465):88-90.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6251550" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antidepressive Agents/administration & dosage/metabolism/*pharmacology ; Frontal Lobe/drug effects ; Male ; Rats ; Receptors, Adrenergic, alpha/metabolism ; Receptors, Adrenergic, beta/drug effects/metabolism ; Receptors, Dopamine/metabolism ; Receptors, Histamine H1/metabolism ; Receptors, Muscarinic/metabolism ; Receptors, Serotonin/*drug effects/metabolism ; Spiperone/metabolism ; Time Factors
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    Electrical potentials in human brain during cognition: new method reveals dynamic patterns of correlation (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    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
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    Retrograde amnesia: possible role of mesencephalic reticular activation in long-term memory (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    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
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
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    Medical therapies for mood disorders alter the blood-brain barrier (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-07-24
    Description: The effects of amitriptyline, lithium, and electroconvulsive shock on cerebral permeability and blood flow were tested. These three treatments share in common (i) the ability to influence the functional activity of central adrenergic neurons by way of effects on the release, reuptake, or metabolism of norepinephrine and (ii) therapeutic efficacy in mood disturbances. Under control conditions, cerebral permeability increases linealy with increasing arterial partial pressure of carbon dioxide and hence cerebral blood flow. All three treatments altered this relationship in a manner consistent with their adrenergic effects. Amitriptyline potentiated this increase in cerebral permeability whereas lithium and electroconvulsive shock blunted this phenomenon. These results support the hypothesis that one function of central adrenergic neurons is regulation of the blood-brain barrier and raise the possibility that a related effect may underlie the clinical usefulness of such treatment.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Preskorn, S H -- Irwin, G H -- Simpson, S -- Friesen, D -- Rinne, J -- Jerkovich, G -- GM15956/GM/NIGMS NIH HHS/ -- MH-00272/MH/NIMH NIH HHS/ -- NS17252/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1981 Jul 24;213(4506):469-71.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7244645" target="_blank"〉PubMed〈/a〉
    Keywords: Amitriptyline/*pharmacology ; Animals ; Blood-Brain Barrier/*drug effects ; Brain/drug effects/*metabolism ; Electroshock ; Lithium/*pharmacology ; Male ; Rats ; Regional Blood Flow/drug effects
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
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    Identification and location of brain protein 4.1 (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    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
    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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