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  • Articles  (272)
  • Animals  (107)
  • Analytical Chemistry and Spectroscopy  (96)
  • Humans  (85)
  • pharmacokinetics  (24)
  • LUNAR AND PLANETARY EXPLORATION
  • 1980-1984  (272)
  • 1940-1944
  • 1984  (272)
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Source
Keywords
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  • 1980-1984  (272)
  • 1940-1944
Year
Journal
Topic
  • 1
    Electronic Resource
    Electronic Resource
    15N and 13C NMR study of the effects of hydrogen bonding and protonation in linear schiff bases: Models for structural studies of rhodopsin and bacteriorhodopsinPart 4 of the series ‘Spectral Studies of Visual Pigments and Related Systems.’ For part 5, see Ref. 9. Dedicated to the memory of Professor Margaret Avram. (1984)
    Chichester : Wiley-Blackwell
    Organic Magnetic Resonance 22 (1984), S. 121-124 
    Details
    ISSN: 0030-4921
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The effects of protonation and hydrogen bonding in linear Schiff bases obtained from n-butylamine with butyraldehyde, crotonaldehyde, sorbaldehyde and all-trans-retinal were studied by means of 15N and 13C NMR. The protonation-induced chemical shifts (Δδ) are an order of magnitude larger for 15N than for 13C. For 15N, this effect was found to increase with the extent of conjugation, culminating in the retinylideneimine (Δδ = -146 ppm), which constitutes a model for the study of the structure of the Schiff base linkage in visual pigments and related systems. Theoretical calculations of protonation-induced Δδ values based on MINDO/ 3 are in agreement with experimental results.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mrc.1270220214
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  • 2
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    Giant panda paternity (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-03-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉O'Brien, S J -- Goldman, D -- Knight, J -- Moore, H D -- Wildt, D E -- Bush, M -- Montali, R J -- Kleiman, D -- New York, N.Y. -- Science. 1984 Mar 16;223(4641):1127-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6701515" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Carnivora ; Male ; *Paternity ; Polymorphism, Genetic ; Proteins/analysis
    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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  • 3
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    Autoimmunity and increased c-myb transcription (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-11-30
    Description: A single recessive gene, lpr, induces an autoimmune-lymphoproliferative syndrome in several strains of mice. The lymphoid organs of lpr/lpr mice contained cells with increased amounts of myb RNA, which codes for a protein found in the nucleus. A similar human lymphoproliferative disorder also had an increase in c-myb expression. Mouse T cells induced by mitogens to proliferate did not express large amounts of myb RNA, indicating that marked myb expression is not a general feature of lymphocyte activation and proliferation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mountz, J D -- Steinberg, A D -- Klinman, D M -- Smith, H R -- Mushinski, J F -- New York, N.Y. -- Science. 1984 Nov 30;226(4678):1087-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6494925" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autoantibodies/*genetics ; Autoimmune Diseases/*genetics ; Female ; *Genes, Recessive ; Lymphocytes/immunology ; Lymphoproliferative Disorders/*genetics ; Mice ; Mice, Inbred Strains ; Nucleic Acid Hybridization ; *Oncogenes ; Species Specificity ; Spleen/immunology ; *Transcription, Genetic
    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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  • 4
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    Epidermal growth factor immunoreactive material in the central nervous system: location and development (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-06-08
    Description: Epidermal growth factor (EGF) is a potent mitogen with hormonal activity in the gastrointestinal tract. Material cross-reacting with EGF was detected in the central nervous system of the developing and adult albino rat by the indirect immunofluorescence technique. High concentrations of EGF-cross-reacting material were identified in forebrain and midbrain structures of pallidal areas of the brain. These include the globus pallidus, ventral pallidum, entopeduncular nucleus, substantia nigra pars reticulata, and the islands of Calleja . Thus, EGF may represent another gut-brain peptide with potential neurotransmitter-neuromodulator functions in pallidal structures of the extrapyramidal motor systems of the brain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fallon, J H -- Seroogy, K B -- Loughlin, S E -- Morrison, R S -- Bradshaw, R A -- Knaver, D J -- Cunningham, D D -- GM31609/GM/NIGMS NIH HHS/ -- NS16017/NS/NINDS NIH HHS/ -- NS19964/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1984 Jun 8;224(4653):1107-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6144184" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/growth & development/*physiology ; Epidermal Growth Factor/*physiology ; Fluorescent Antibody Technique ; Globus Pallidus/physiology ; Mitogens/physiology ; Neurotransmitter Agents/physiology ; Rats
    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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  • 5
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    Lymphadenopathy associated virus infection of a blood donor--recipient pair with acquired immunodeficiency syndrome (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-07-06
    Description: A retrovirus isolated from three patients with the acquired immunodeficiency syndrome (AIDS) in the United States was morphologically and antigenically identical to lymphadenopathy associated virus isolated in France. Two of these isolates were from a blood donor-recipient pair, each of whom developed AIDS. Lymphadenopathy associated virus was isolated from the blood donor's lymphocytes 12 months after his onset of AIDS symptoms and from the blood recipient's lymphocytes 1 month after her onset of AIDS symptoms. Two isolates from the blood donor-recipient pair and an isolate from an epidemiologically unrelated homosexual man were examined by competitive radioimmunoassay to determine their antigenic relatedness to each other and to other human retroviruses. The major core proteins (p25) of the isolates were antigenically identical and all three isolates were identical to prototype lymphadenopathy associated virus isolated in France.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Feorino, P M -- Kalyanaraman, V S -- Haverkos, H W -- Cabradilla, C D -- Warfield, D T -- Jaffe, H W -- Harrison, A K -- Gottlieb, M S -- Goldfinger, D -- Chermann, J C -- New York, N.Y. -- Science. 1984 Jul 6;225(4657):69-72.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6328663" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*microbiology/transmission ; Adult ; Antibodies, Viral/immunology ; *Blood Donors ; Blood Transfusion/adverse effects ; Deltaretrovirus/immunology ; Female ; Humans ; Male ; Retroviridae/*immunology ; Retroviridae Infections/*immunology
    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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  • 6
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    Hypoxic coordinate regulation of mitochondrial enzymes in mammalian cells (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-02-17
    Description: The effect of hypoxic exposure on various mitochondrial enzymes and on cell mitochondrial genomic content was studied in two types of mammalian cells. Hypoxia depressed the activity of six enzymes to the same degree. The kinetics of depression and of recovery during reexposure to normoxia were statistically similar for three marker enzymes. Despite the global and symmetrical decrease in enzyme activities, mitochondrial DNA remained constant. This suggests either symmetrical loss of mitochondrial enzymes from all mitochondria or complete loss of enzymes from a subpopulation of mitochondria with retention of an intact mitochondrial genome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Murphy, B J -- Robin, E D -- Tapper, D P -- Wong, R J -- Clayton, D A -- 5 R01 HL23701-14/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1984 Feb 17;223(4637):707-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6320368" target="_blank"〉PubMed〈/a〉
    Keywords: Aerobiosis ; Anaerobiosis ; Animals ; Anoxia/physiopathology ; Citrate (si)-Synthase/genetics/*metabolism ; DNA, Mitochondrial/*genetics ; Electron Transport Complex IV/genetics/*metabolism ; Macrophages/*enzymology ; Mice ; Mitochondria/*enzymology ; Mitochondria, Muscle/*enzymology ; Oxidoreductases/genetics/*metabolism ; Oxo-Acid-Lyases/*metabolism ; Rats
    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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  • 7
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    Neuroleptic-induced decrease in plasma homovanillic acid and antipsychotic activity in schizophrenic patients (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-08-31
    Description: Plasma-free homovanillic acid, a major metabolite of dopamine, was measured in chronically ill schizophrenic patients both before and during treatment with the antipsychotic phenothiazine, fluphenazine. Neuroleptic treatment was associated with a significant time-dependent decrease in plasma homovanillic acid from pretreatment values, which were significantly elevated when compared with those of age- and sex-matched healthy control subjects. Further, both the absolute concentrations as well as the neuroleptic-induced reductions in plasma homovanillic acid determined over 5 weeks of neuroleptic treatment were statistically significantly correlated with ratings of psychosis and improvement in psychosis, respectively. These findings suggest that the delayed effects of neuroleptic agents on presynaptic dopamine activity may more closely parallel their therapeutic actions than do their immediate effects in blocking postsynaptic dopamine receptors and that a decrease in dopamine "turnover" may be responsible for their antipsychotic effects.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pickar, D -- Labarca, R -- Linnoila, M -- Roy, A -- Hommer, D -- Everett, D -- Paul, S M -- New York, N.Y. -- Science. 1984 Aug 31;225(4665):954-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6474162" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Dopamine/metabolism ; Female ; Fluphenazine/pharmacology/*therapeutic use ; Homovanillic Acid/*blood ; Humans ; Male ; Phenylacetates/*blood ; Schizophrenia/blood/*drug therapy ; 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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  • 8
    Electronic Resource
    Electronic Resource
    Pharmacokinetics of propranolol during pregnancy (1984)
    Springer
    European journal of clinical pharmacology 27 (1984), S. 583-587 
    Details
    ISSN: 1432-1041
    Keywords: propranolol ; pregnancy ; beta-adrenoceptor antagonist ; pharmacokinetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary Propranolol, a beta-adrenoceptor blocking drug, was administered to 6 healthy pregnant volunteers between 32 and 36 weeks gestation and when at least 6 weeks postparum. On both occasions, subjects were given propranolol 120 mg orally or 10 mg intravenously in randomised order with a minimum washout period of 1 week. Propranolol was assayed in plasma by gas-liquid chromatography with electron-capture detection and the pharmacokinetic parameters were investigated. There were no significant alterations in elimination half-life, clearance or apparent volume of distribution per kilogram antenatally compared with postnatally: bioavailability was also unchanged. It is concluded that the disposition of propranolol is not altered during pregnancy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00556896
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  • 9
    Electronic Resource
    Electronic Resource
    Intrapatient variation in tobramycin kinetics in low birth weight infants during first postnatal week (1984)
    Springer
    European journal of clinical pharmacology 26 (1984), S. 647-649 
    Details
    ISSN: 1432-1041
    Keywords: tobramycin ; newborn infants ; intrapatient variations ; pharmacokinetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary Nineteen newborn infants receiving tobramycin, 2.5 mg/kg every 12 h were studied on two occasions at steady-state during the first week of postnatal age. The two studies were separated by two to four days. Total body clearance of tobramycin averaged 1.15 and 1.14 ml/min/kg (p〉0.05), apparent volume of distribution averaged 0.82 and 0.68 l/kg (p〉0.05), and elimination half-life averaged 8.6 and 7.1 h (p〉0.05), during the first and second study, respectively. When the data were further analyzed based on the birth weight, tobramycin kinetics changed during the second study compared to the first study in very low birth weight infants. In eight infants ⩽1.5 kg birth weight, although total clearance of tobramycin was similar, the average apparent volume of distribution decreased from 1.04 l/kg during the first study to 0.73 l/kg during the second study (p〈0.05) and elimination half-life from 11.1 h during the first study to 8.7 h during the second study (p〈0.05). These data indicate that these infants may require a change in dosing interval with continued tobramycin therapy during the first week of postnatal age. Intrapatient variation in tobramycin kinetics should be considered, in addition to the interpatient variation reported previously, when monitoring the serum concentration to individualize tobramycin therapy in newborn infants ⩽1.5 kg birth weight.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00543504
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  • 10
    Electronic Resource
    Electronic Resource
    Acetaminophen accumulation in pediatric patients after repeated therapeutic doses (1984)
    Springer
    European journal of clinical pharmacology 27 (1984), S. 57-59 
    Details
    ISSN: 1432-1041
    Keywords: acetaminophen ; pediatric patients ; fever therapy ; accumulation ; pharmacokinetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary Acetaminophen serum concentrations were studied in 21 infants and children with fever. The maximum serum concentrations ranged from 9.96 to 19.6 µg/ml after a single dose of 12–14 mg/kg and 13.9 to 40.1 µg/ml after a single dose of 22–27 mg/kg. Ten patients were restudied at steadystate after repeat doses had been given every 4 or 8 h for 1 to 3 days. Total area under the acetaminophen serum concentration-time curve normalized for dose averaged 0.181 (ml/min/kg)−1 after the first dose and 0.202 (ml/min/kg)−1 at steady-state (p〈0.05). Five patients showed a 13 to 44% increase in the AUC; one had a 10% decrease in the AUC; and four had less than 6% change in the AUC. There was no evidence of hepatotoxicity. These data suggest that acetaminophen may accumulate after repeated therapeutic doses in children with fever.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02395207
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