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  • Rats, Inbred Strains  (33)
  • Adult  (29)
  • Genes  (24)
  • American Association for the Advancement of Science (AAAS)  (85)
  • 1980-1984  (85)
  • 1975-1979
  • 1983  (85)
Collection
Keywords
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  • American Association for the Advancement of Science (AAAS)  (85)
  • Springer  (1)
Years
  • 1980-1984  (85)
  • 1975-1979
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  • 1
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    Regulation of carcinogen metabolism in the rat ovary by the estrous cycle and gonadotropin (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-03-25
    Description: The activity of 7,12-dimethylbenz[a]anthracene hydroxylase in the rat ovary is several times higher in the proestrous phase of the estrous cycle than in the estrous and metestrous plus diestrous phases. Administration of gonadotropin leads to a similar increase in the capacity of the ovary to metabolize xenobiotics. This variation in the activity of 7,12-dimethylbenz[a]anthracene hydroxylase during the estrous cycle may be related to the marked changes in the incidence of ovarian cancer during menopause and in women taking contraceptive pills.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bengtsson, M -- Rydstrom, J -- New York, N.Y. -- Science. 1983 Mar 25;219(4591):1437-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6681915" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aryl Hydrocarbon Hydroxylases/*metabolism ; Cytochrome P-450 Enzyme System/metabolism ; Epoxide Hydrolases/metabolism ; *Estrus ; Female ; Glutathione Transferase/metabolism ; Gonadotropins, Equine/*pharmacology ; Metestrus ; Ovary/*physiology ; Pregnancy ; Proestrus ; Quinone Reductases/metabolism ; Rats ; Rats, Inbred Strains
    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
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    Eye movements of preschool children (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    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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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    Pimozide blocks establishment but not expression of amphetamine-produced environment-specific conditioning (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-06-17
    Description: Animals with a history of receiving daily injections of +-amphetamine in a specific environment showed a placebo effect (enhanced activity) when injected with saline and placed there; control animals with similar but dissociated drug histories and experience with the test chamber failed to show the effect. The dopamine receptor blocker pimozide antagonized the establishment of conditioning. However, the same dose of pimozide, when given to previously conditioned animals on the placebo test day, failed to antagonize the expression of conditioned activity. Thus, during conditioning dopaminergic neurons mediated a change that subsequently influenced behavior even when dopaminergic systems were blocked. Although schizophrenia may be related to hyperfunctioning of dopamine, neuroleptic drugs, which block dopamine receptors on their first administration, do not have therapeutic effects for a number of days. The results of the pimozide experiments may resolve this paradox.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beninger, R J -- Hahn, B L -- New York, N.Y. -- Science. 1983 Jun 17;220(4603):1304-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857251" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Conditioning (Psychology)/*drug effects/physiology ; Dextroamphetamine/antagonists & inhibitors/*pharmacology ; Humans ; Male ; Pimozide/*pharmacology ; Rats ; Rats, Inbred Strains ; Receptors, Dopamine/physiology ; Reinforcement (Psychology) ; Schizophrenia/physiopathology
    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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    Splice junctions: association with variation in protein structure (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-06-10
    Description: A comparison between eukaryotic gene sequences and protein sequences of homologous enzymes from bacterial and mammalian organisms shows that intron-exon junctions frequently coincide with variable surface loops of the protein structures. The altered surface structures can account for functional differences among the members of a family. Sliding of the intron-exon junctions may constitute one mechanism for generating length polymorphisms and divergent sequences found in protein families. Since intron-exon junctions map to protein surfaces, the alterations mediated by sliding of these junctions can be effected without disrupting the stability of the protein core.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Craik, C S -- Rutter, W J -- Fletterick, R -- AM21344/AM/NIADDK NIH HHS/ -- AM26081/AM/NIADDK NIH HHS/ -- GM28520/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 Jun 10;220(4602):1125-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6344214" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Bacterial Proteins ; Base Sequence ; Biological Evolution ; DNA/genetics ; Endopeptidases/genetics ; Eukaryotic Cells/metabolism ; Genes ; Genes, Bacterial ; Protein Conformation ; Proteins/*genetics ; *Serine Endopeptidases ; Tetrahydrofolate Dehydrogenase/genetics
    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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  • 5
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    Direct in vivo monitoring of dopamine released from two striatal compartments in the rat (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-07-08
    Description: Microvoltammetric electrodes were used to monitor dopamine released in the caudate nucleus of the rat after electrical stimulation of the medial forebrain bundle. The time resolution of the technique is sufficient to determine in vivo concentration changes on a time scale of seconds. Direct evidence identifying the substance released as dopamine was obtained both voltammetrically and pharmacologically. Administration of alpha-methyl-p-tyrosine terminates the release of dopamine, although tissue stores of dopamine are still present. Thus there appears to be a compartment for dopamine storage that is not available for immediate release. This compartment appears to be mobilized by amfonelic acid, since administration of this agent after alpha-methyl-p-tyrosine returns the concentration of dopamine released by electrical stimulation to 75 percent of the original amount.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ewing, A G -- Bigelow, J C -- Wightman, R M -- KO 4 NS000356/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1983 Jul 8;221(4606):169-71.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857277" target="_blank"〉PubMed〈/a〉
    Keywords: Amphetamine/pharmacology ; Animals ; Caudate Nucleus/drug effects/*metabolism ; Dopamine/*metabolism ; Male ; Methyltyrosines/pharmacology ; Microelectrodes ; Naphthyridines/pharmacology ; Rats ; Rats, Inbred Strains ; alpha-Methyltyrosine
    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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    Scientist sues over genetically impure mice (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-08-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fox, J L -- New York, N.Y. -- Science. 1983 Aug 12;221(4611):625-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6603019" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Animals, Laboratory ; Jurisprudence ; Mice ; *Mice, Inbred BALB C ; Rats ; Rats, Inbred Lew ; Rats, Inbred Strains ; Research ; United States ; Wisconsin
    Print ISSN: 0036-8075
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  • 7
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    Proviral DNA of a retrovirus, human T-cell leukemia virus, in two patients with AIDS (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    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
    Print ISSN: 0036-8075
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  • 8
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    Adenosine receptors: autoradiographic evidence for their location on axon terminals of excitatory neurons (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-05-27
    Description: Adenosine receptors were made visible on light microscopy by autoradiography with tritiated cyclohexyladenosine. In the cerebellum, adenosine receptors were absent in Weaver mice, which lack granule cells, and were displaced in Reeler mice, which have displacements of granule cells. Thus, adenosine receptors appear to be located on the axon terminals of excitatory granule cells in the cerebellum. Removal of one eye of a rat depleted adenosine receptors in the contralateral superior colliculus, suggesting that the receptors occur on axon terminals of excitatory projections from retinal ganglion cells. The presence of adenosine receptors on excitatory axon terminals may explain synaptic inhibition by adenosine and the behavioral effects of xanthines.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goodman, R R -- Kuhar, M J -- Hester, L -- Snyder, S H -- DA-00266/DA/NIDA NIH HHS/ -- MH-18501/MH/NIMH NIH HHS/ -- NS-16375/NS/NINDS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1983 May 27;220(4600):967-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6302841" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine/*physiology ; Animals ; Autoradiography ; Axons/*physiology ; Cerebellum/physiology ; Corpus Striatum/physiology ; Hippocampus/physiology ; Mice ; Mice, Neurologic Mutants ; Rats ; Rats, Inbred Strains ; Receptors, Cell Surface/*physiology ; Receptors, Purinergic ; Retinal Ganglion Cells/physiology ; Synaptic Membranes/physiology ; Thalamus/physiology
    Print ISSN: 0036-8075
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  • 9
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    Vasoactive intestinal polypeptide and muscarinic receptors: supersensitivity induced by long-term atropine treatment (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-04-29
    Description: Long-term treatment of rats with atropine induced large increases in the numbers of muscarinic receptors and receptors for vasoactive intestinal polypeptide in the salivary glands. Since receptors for vasoactive intestinal polypeptide coexist with muscarinic receptors on the same neurons in this preparation, the results suggest that a drug that alters the sensitivity of one receptor may also affect the sensitivity of the receptor for a costored transmitter and in this way contribute to the therapeutic or side effects of the drugs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hedlund, B -- Abens, J -- Bartfai, T -- New York, N.Y. -- Science. 1983 Apr 29;220(4596):519-21.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6132446" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Atropine/*pharmacology ; Gastrointestinal Hormones/*metabolism ; Male ; Neurotransmitter Agents/metabolism ; Rats ; Rats, Inbred Strains ; Receptors, Cholinergic/*drug effects ; Receptors, Muscarinic/analysis/*drug effects ; Salivary Glands/analysis/innervation ; Vasoactive Intestinal Peptide/analysis/*metabolism
    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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  • 10
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    Modifying oculomotor activity in awake subjects increases the amplitude of eye movements during REM sleep (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    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
    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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  • 11
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    Systemic cholinergic agents induce seizures and brain damage in lithium-treated rats (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-04-15
    Description: Administration of pilocarpine or physostigmine to rats treated with lithium chloride produced sustained limbic seizures, widespread brain damage, and increased concentrations of D-myo-inositol-1-phosphate (a metabolite of the phosphoinositides, lipids involved in membrane receptor function) in the brain. The syndrome was preventable with atropine. The physostigmine doses and concentrations of blood lithium that caused the syndrome are similar to those considered appropriate for psychiatric chemotherapy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Honchar, M P -- Olney, J W -- Sherman, W R -- MH-14677/MH/NIMH NIH HHS/ -- MH-38894/MH/NIMH NIH HHS/ -- NS-05159/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1983 Apr 15;220(4594):323-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6301005" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Atropine/pharmacology ; Brain Chemistry/drug effects ; Chlorides/adverse effects ; Drug Interactions ; Humans ; Inositol/analogs & derivatives/analysis ; *Inositol Phosphates ; Lithium/*adverse effects ; Lithium Chloride ; Male ; Parasympathomimetics/*adverse effects ; Physostigmine/adverse effects ; Pilocarpine/adverse effects ; Rats ; Rats, Inbred Strains ; Seizures/*chemically induced ; Substance-Related Disorders/*etiology
    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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  • 12
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    Fragile sites in chromosomes: possible model for the study of spontaneous chromosome breakage (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    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
    Print ISSN: 0036-8075
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  • 13
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    Myoglobin gene is a big surprise. The first analysis of a myoglobin gene reveals some striking similarities and some unexpected differences from hemoglobin genes (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-03-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1983 Mar 18;219(4590):1312.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6828858" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Evolution ; Genes ; Humans ; Myoglobin/*genetics
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  • 14
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    Potential role of galactokinase in neonatal carbohydrate assimilation (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    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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  • 15
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    A silent, neutral substitution detected by reverse-phase high-performance liquid chromatography: hemoglobin Beirut (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    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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  • 16
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    Inhibition of gastric acid secretion in rats by intracerebral injection of corticotropin-releasing factor (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    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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  • 17
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    Insulin-like growth factors: a role in growth hormone negative feedback and body weight regulation via brain (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-04-01
    Description: Intracerebroventricular administration of ILA's, a preparation enriched in insulin-like growth factors, caused a marked decrease in growth hormone secretory episodes and in body weight associated with reduced food intake over 24 hours. Central injection of insulin and bovine serum albumin had no such effects. These findings suggest that insulin-like growth factors play a role in growth hormone negative feedback and body weight regulation at the level of the central nervous system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tannenbaum, G S -- Guyda, H J -- Posner, B I -- New York, N.Y. -- Science. 1983 Apr 1;220(4592):77-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6338593" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Body Weight/*drug effects ; Brain/drug effects/*physiology ; Eating/drug effects ; Growth Hormone/antagonists & inhibitors/blood/*physiology ; Insulin/blood/*pharmacology ; Male ; Peptides/*pharmacology ; Rats ; Rats, Inbred Strains ; Somatomedins/*pharmacology
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  • 18
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    Monoclonal antibodies reveal the structural basis of antibody diversity (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-11-18
    Description: Hybridoma technology has made it possible to introduce into continuous culture normal antibody-forming cells and to obtain large amounts of the immunoglobulin produced by each of these cells. Examination of the structure of a number of monoclonal antibodies that react with a single antigen has provided new information on the structural basis of the specificity and affinity of antibodies. Comparisons of families of monoclonal antibodies derived from a single germ line gene revealed the importance of somatic mutation in generating antibody diversity. Monoclonal antibodies that react with variable regions of other monoclonals allow the further dissection and modulation of the immune response. Finally, the continued somatic instability of immunoglobulin genes in cultured antibody-forming cells makes it possible to determine the rate of somatic mutation and to generate mutant monoclonal antibodies that may be more effective serological reagents.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Teillaud, J L -- Desaymard, C -- Giusti, A M -- Haseltine, B -- Pollock, R R -- Yelton, D E -- Zack, D J -- Scharff, M D -- 5T32GM7288/GM/NIGMS NIH HHS/ -- AI05231/AI/NIAID NIH HHS/ -- AI10702/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1983 Nov 18;222(4625):721-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6356353" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibodies, Monoclonal/genetics/*immunology ; *Antibody Diversity ; Antibody Specificity ; Genes ; Hybridomas/immunology ; Immunoglobulin Idiotypes/immunology ; Immunoglobulin Variable Region/genetics ; Mice ; Mutation ; Protein Conformation ; Structure-Activity Relationship
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  • 19
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    Protein engineering (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-02-11
    Description: The prospects for protein engineering, including the roles of x-ray crystallography, chemical synthesis of DNA, and computer modelling of protein structure and folding, are discussed. It is now possible to attempt to modify many different properties of proteins by combining information on crystal structure and protein chemistry with artificial gene synthesis. Such techniques offer the potential for altering protein structure and function in ways not possible by any other method.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ulmer, K M -- New York, N.Y. -- Science. 1983 Feb 11;219(4585):666-71.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6572017" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Crystallography ; Genes ; *Genetic Engineering ; Models, Molecular ; Molecular Biology/trends ; Protein Conformation ; Proteins/*genetics ; X-Ray Diffraction
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  • 20
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    Potent interaction between glucocorticoids and growth hormone-releasing factor in vivo (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-08-05
    Description: Administration of dexamethasone significantly enhanced the pituitary growth hormone response to growth hormone-releasing factor in intact as well as adrenalectomized rats. Thus the inhibitory effects of glucocorticosteroids on somatic growth which involve an interaction of these steroids and growth hormone at a peripheral level may also involve a modification of pathways within the central nervous system that regulate normal growth hormone secretion.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wehrenberg, W B -- Baird, A -- Ling, N -- AM-18811/AM/NIADDK NIH HHS/ -- HD 09690/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1983 Aug 5;221(4610):556-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6408735" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenalectomy ; Animals ; Dexamethasone/pharmacology ; Drug Interactions ; Glucocorticoids/*pharmacology ; Growth Hormone/blood/secretion ; Growth Hormone-Releasing Hormone/*pharmacology ; Male ; Rats ; Rats, Inbred Strains
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  • 21
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    Effects of serotonin on memory impairments produced by ethanol (1983)
    American Association for the Advancement of Science (AAAS)
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    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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  • 22
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    Increased brain size and cellular content in infant rats treated with an opiate antagonist (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-09-16
    Description: From birth to day 21, rat offspring received daily injections of naltrexone at a dosage that blocked morphine-induced analgesia 24 hours a day. At 21 days, body, brain, and cerebellar weights of naltrexone-injected animals were 18, 11, and 5 percent greater than corresponding control weights. In addition, morphometric analysis of the cerebrum revealed a somatosensory cortex that was 18 percent thicker than that of the controls. The cerebellum of naltrexone-treated rats was 41 percent larger in total area and contained at least 70 percent more glial cells and 30 percent more granule neurons. Neurons derived prenatally were unaffected by drug treatment. These results show that naltrexone can stimulate body and brain growth in rats and suggest a role for the endorphin and opiate receptor system in development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zagon, I S -- McLaughlin, P J -- New York, N.Y. -- Science. 1983 Sep 16;221(4616):1179-80.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6612331" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Newborn ; Body Weight/drug effects ; Brain/*drug effects/growth & development/ultrastructure ; Cerebellum/drug effects ; Morphine/*antagonists & inhibitors ; Naloxone/*analogs & derivatives ; Naltrexone/*pharmacology ; Neuroglia/drug effects ; Organ Size/drug effects ; Rats ; Rats, Inbred Strains ; Somatosensory Cortex/drug effects
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  • 23
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    Interrelated striated elements in vestibular hair cells of the rat (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-05-06
    Description: Unusual fixation procedures revealed a series of interrelated striated organelles in type I and type II vestibular hair cells of the rat; these organelles seemed to be less well developed in cochlear hair cells. The findings suggest that contractile elements may play a role in sensory transduction in the inner ear, particularly in the vestibular system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ross, M D -- Bourne, C -- New York, N.Y. -- Science. 1983 May 6;220(4597):622-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6682246" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/physiology ; Animals ; Cell Membrane/ultrastructure ; Cytoskeleton/ultrastructure ; Hair Cells, Auditory/*ultrastructure ; Microscopy, Electron ; Organoids/ultrastructure ; Rats ; Rats, Inbred Strains
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  • 24
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    Urinary phenyl acetate: a diagnostic test for depression? (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    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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  • 25
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    Nicotinic cholinergic receptor binding sites in the brain: regulation in vivo (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-04-08
    Description: Tritiated acetylcholine was used to measure binding sites with characteristics of nicotinic cholinergic receptors in rat brain. Regulation of the binding sites in vivo was examined by administering two drugs that stimulate nicotinic receptors directly or indirectly. After 10 days of exposure to the cholinesterase inhibitor diisopropyl fluorophosphate, binding of tritiated acetylcholine in the cerebral cortex was decreased. However, after repeated administration of nicotine for 10 days, binding of tritiated acetylcholine in the cortex was increased. Saturation analysis of tritiated acetylcholine binding in the cortices of rats treated with diisopropyl fluorophosphate or nicotine indicated that the number of binding sites decreased and increased, respectively, while the affinity of the sites was unaltered.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schwartz, R D -- Kellar, K J -- 507 RR05360-20/RR/NCRR NIH HHS/ -- GM07443/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 Apr 8;220(4593):214-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6828889" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylcholine/metabolism ; Animals ; Brain/*physiology ; Brain Chemistry/drug effects ; Cerebral Cortex/analysis/physiology ; Isoflurophate/pharmacology ; Male ; Nicotine/metabolism/pharmacology ; Rats ; Rats, Inbred Strains ; Receptors, Cholinergic/*physiology ; Receptors, Nicotinic/analysis/*physiology
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  • 26
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    Indoor air pollution: a public health perspective (1983)
    American Association for the Advancement of Science (AAAS)
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    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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  • 27
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    Genes of the major histocompatibility complex in mouse and man (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-11-18
    Description: The genes of the major histocompatibility complex code for cell-surface molecules that play an important role in the generation of the immune response. These genes and molecules have been studied intensively over the last five decades by geneticists, biochemists, and immunologists, but only recently has the isolation of the genes by molecular biologists facilitated their precise characterization. Many surprising findings have been made concerning their structure, multiplicity, organization, function, and evolution.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Steinmetz, M -- Hood, L -- New York, N.Y. -- Science. 1983 Nov 18;222(4625):727-33.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6356354" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Evolution ; Chromosome Mapping ; Genes ; H-2 Antigens/*genetics ; HLA Antigens/*genetics ; Histocompatibility Antigens/genetics ; Humans ; *Major Histocompatibility Complex ; Mice ; Polymorphism, Genetic ; Protein Conformation
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  • 28
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    Increased sensitivity of lymphocytes from people over 65 to cell cycle arrest and chromosomal damage (1983)
    American Association for the Advancement of Science (AAAS)
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    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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  • 29
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    Dopamine-beta-hydroxylase activity and homovanillic acid in spinal fluid of schizophrenics with brain atrophy (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    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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  • 30
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    Potassium currents in Drosophila: different components affected by mutations of two genes (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-06-03
    Description: Electrophysiological analysis of the Drosophila behavioral mutants Eag and Sh and the double mutant Eag Sh indicates that the products of both genes take part in the control of potassium currents in the membranes of both nerve and muscle. In voltage-clamped larval muscle fibers, Sh affects the transient A current, whereas Eag reduces the delayed rectification and, to a lesser extent, the A current.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wu, C F -- Ganetzky, B -- Haugland, F N -- Liu, A X -- NS00675/NS/NINDS NIH HHS/ -- NS15797/NS/NINDS NIH HHS/ -- NS18500/NS/NINDS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1983 Jun 3;220(4601):1076-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6302847" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Drosophila/genetics ; Electrophysiology ; Genes ; Ion Channels/*metabolism ; Larva ; Membrane Potentials ; Muscles/metabolism ; *Mutation ; Neuromuscular Junction/metabolism ; Potassium/*metabolism
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  • 31
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    Retinal capillaries: basement membrane thickening by galactosemia prevented with aldose reductase inhibitor (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-09-16
    Description: A twofold thickening of capillary basement membranes of rat retinas resulting from dietary galactose was prevented by sorbinil, an inhibitor of aldose reductase. Since the basement membrane thickening was ultrastructurally similar to that typical of diabetic retinopathy, it may indicate changes in vessel permeability and susceptibility to hemorrhage. Galactosemic rats should be useful models for studying basement membrane-related complications of diabetes and for examining the potential biochemical regulation of basement membrane synthesis by aldose reductase inhibitors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Robison, W G Jr -- Kador, P F -- Kinoshita, J H -- New York, N.Y. -- Science. 1983 Sep 16;221(4616):1177-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6612330" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Basement Membrane/*pathology ; Capillaries/pathology ; Diabetic Retinopathy/etiology ; Disease Models, Animal ; Galactosemias/drug therapy/*pathology ; Imidazoles/*therapeutic use ; *Imidazolidines ; Male ; Rats ; Rats, Inbred Strains ; Retinal Vessels/*pathology
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    Biogenesis of ornithine transcarbamylase in spfash mutant mice: two cytoplasmic precursors, one mitochondrial enzyme (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-10-28
    Description: Extracts of liver from hemizygous affected mice with the X-linked spfash mutation have 5 to 10 percent of normal ornithine transcarbamylase (OTC) activity, yet the homogeneous enzyme isolated from these extracts is identical to that in controls. The OTC messenger RNA from mutant livers programs the synthesis of two distinct OTC precursor polypeptides--one normal in size, the other distinctly elongated. Both precursors are imported and proteolytically processed by mitochondria, but only the normal one is assembled into active trimer. This novel phenotype may result from a mutation in the structural gene for OTC leading, primarily, to aberrant splicing of OTC messenger RNA and, secondarily, to formation of a structurally altered precursor whose posttranslational pathway is ultimately futile because its mature mitochondrial form is not capable of assembly and functional expression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rosenberg, L E -- Kalousek, F -- Orsulak, M D -- AM 09527/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1983 Oct 28;222(4622):426-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6623083" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Genes ; Liver/enzymology ; Macromolecular Substances ; Mice ; Mice, Mutant Strains/genetics/physiology ; Mitochondria, Liver/enzymology ; Mutation ; Ornithine Carbamoyltransferase/*genetics ; Protein Precursors/genetics ; Protein Processing, Post-Translational ; RNA, Messenger/genetics
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    Down's syndrome in adults: brain metabolism (1983)
    American Association for the Advancement of Science (AAAS)
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    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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  • 34
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    Functional alpha 1-protease inhibitor in the lower respiratory tract of cigarette smokers is not decreased (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-09-16
    Description: Cigarette smoking is the major risk factor for the development of pulmonary emphysema, a disorder that may result from an imbalance between the elastase and antielastase levels in the lungs. Decreased functional alpha 1-protease inhibitor, an inhibitor of neutrophil elastase, might render smokers susceptible to elastase-catalyzed destruction of pulmonary elastic fibers and the development of emphysema. Binding and inactivation of isotopically labeled porcine pancreatic elastase and human neutrophil elastase by alpha 1-protease inhibitor were measured in fluid obtained by bronchoalveolar lavage of volunteers. The inhibition of elastase-catalyzed solubilization of elastin and a tripeptide substrate were also determined. The mean level of functional alpha 1-protease inhibitor in the bronchoalveolar lavage fluid of smokers was found to be equal to or greater than that of nonsmokers, contradicting reports by other investigators. Increased elastase derived from pulmonary neutrophils, rather than decreased functional alpha 1-protease inhibitor, appears to be the main factor in the genesis of emphysema in smokers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stone, P J -- Calore, J D -- McGowan, S E -- Bernardo, J -- Snider, G L -- Franzblau, C -- HL-19717/HL/NHLBI NIH HHS/ -- HL-25229/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1983 Sep 16;221(4616):1187-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6612333" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Bronchi/*metabolism ; Female ; Humans ; In Vitro Techniques ; Male ; Neutrophils/metabolism ; Protease Inhibitors/*metabolism ; Pulmonary Alveoli/*metabolism ; *Smoking
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  • 35
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    Single-channel fluctuations in bimolecular lipid membranes induced by rat olfactory epithelial homogenates (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-05-13
    Description: Chemosensitive single-channel fluctuations were observed to be induced in essentially solvent-free lipid bimolecular membranes by the addition of sonicated homogenates of rat olfactory epithelium. The chemosensitive channels were not observed when respiratory epithelium homogenates were used instead. Ionic selectivity is consistent with potassium ions as the charge carrier. These channels may be associated with the initial events of chemoreception in the rat olfactory epithelium.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vodyanoy, V -- Murphy, R B -- New York, N.Y. -- Science. 1983 May 13;220(4598):717-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6301014" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anura ; Chemoreceptor Cells/physiology ; Epithelium/physiology ; Ion Channels/*drug effects ; Male ; Membranes/drug effects ; Olfactory Mucosa/*physiology ; Rats ; Rats, Inbred Strains ; Smell/physiology
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  • 36
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    Dopamine modulation of the effects of gamma-aminobutyric acid on substantia nigra pars reticulata neurons (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-04-08
    Description: Studies were conducted to assess whether basal ganglia output neurons originating in the substantia nigra pars reticulata might be affected by dopamine released from dendrites of neighboring substantia nigra pars compacta neurons. Dopamine applied by iontophoresis increased the baseline firing rates of approximately half of the substantia nigra pars reticulata cells tested. The more significant finding, unrelated to the increase in firing, was the ability of dopamine to attenuate the inhibitory responses of these cells to iontophoretically applied gamma-aminobutyric acid. These findings suggest a role for dopamine as a neuromodulator and further suggest that it can act at sites beyond the striatum to modify transmission from the basal ganglia to motor nuclei.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Waszcak, B L -- Walters, J R -- New York, N.Y. -- Science. 1983 Apr 8;220(4593):218-21.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6828891" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials/drug effects ; Animals ; Dopamine/*pharmacology ; Iontophoresis ; Male ; Neurons/*drug effects ; Norepinephrine/pharmacology ; Rats ; Rats, Inbred Strains ; Substantia Nigra/*drug effects ; gamma-Aminobutyric Acid/*pharmacology
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  • 37
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    Effects of tyrosine administration on serum biopterin in normal controls and patients with Parkinson's disease (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-01-07
    Description: After administration of tyrosine, total concentration of biopterin, the cofactor for tyrosine hydroxylase, was increased in the striatum, adrenal glands, and serum of rats, and in the serum of humans. Serum biopterin is lower in patients with Parkinson's disease than in normal controls. After oral administration of tyrosine, the increase in serum biopterin concentration was smaller in patients with Parkinson's disease (less than twofold) than in healthy controls (three-to sevenfold). These results suggest that tyrosine may have a regulatory role in biopterin biosynthesis and that patients with Parkinson's disease may have some abnormality in the regulation of biopterin biosynthesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yamaguchi, T -- Nagatsu, T -- Sugimoto, T -- Matsuura, S -- Kondo, T -- Iizuka, R -- Narabayashi, H -- New York, N.Y. -- Science. 1983 Jan 7;219(4580):75-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6849120" target="_blank"〉PubMed〈/a〉
    Keywords: Administration, Oral ; Adrenal Glands/metabolism ; Alanine/pharmacology ; Animals ; Biopterin/*blood ; Corpus Striatum/metabolism ; Humans ; Injections, Intraperitoneal ; Liver/metabolism ; Male ; Parkinson Disease/*blood ; Pteridines/*blood ; Rats ; Rats, Inbred Strains ; Time Factors ; Tyrosine/administration & dosage/*pharmacology
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  • 38
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    Differential expression of the translocated and the untranslocated c-myc oncogene in Burkitt lymphoma (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-10-28
    Description: Burkitt lymphoma cells carrying either a rearranged or unrearranged c-myc oncogene were examined with the use of probes from the 5' exon and for the second and third exon of the oncogene. The results indicate that the normal c-myc gene on chromosome 8 and the 5' noncoding and 3' coding segments of the c-myc oncogene separated by the chromosomal translocation are under different transcriptional control in the lymphoma cells. Burkitt lymphoma cells carrying a translocated but unrearranged c-myc oncogene express normal c-myc transcripts. In contrast, lymphoma cells carrying a c-myc gene rearranged head to head with the immunoglobulin constant mu region gene express c-myc transcripts lacking the normal untranslated leader.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉ar-Rushdi, A -- Nishikura, K -- Erikson, J -- Watt, R -- Rovera, G -- Croce, C M -- CA09171/CA/NCI NIH HHS/ -- CA10815/CA/NCI NIH HHS/ -- CA16685/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1983 Oct 28;222(4622):390-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6414084" target="_blank"〉PubMed〈/a〉
    Keywords: Burkitt Lymphoma/*genetics ; Chromosomes, Human, 13-15 ; Chromosomes, Human, 19-20 ; Chromosomes, Human, 6-12 and X ; Gene Expression Regulation ; Genes ; Humans ; Immunoglobulin Heavy Chains/genetics ; *Oncogenes ; Operon ; Transcription, Genetic ; Translocation, Genetic
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    Transmission of integrated sea urchin histone genes by nuclear transplantation in Xenopus laevis (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-07-01
    Description: Sea urchin histone genes contained in a recombinant plasmid pSp102 were microinjected into the cytoplasm of fertilized eggs of Xenopus laevis. By the late blastula stage, plasmid DNA sequences were detected comigrating with the high molecular weight cellular DNA (greater than 48 kilobases). Analysis of the DNA from injected embryos digested with various restriction endonuclease demonstrated that the injected DNA was integrated into the frog genome. Clones of embryos containing the pSp102 DNA sequences were produced by means of nuclear transplantation. Individuals of the same clone contain the pSp102 sequences integrated into similar chromosomal locations. These sites vary between different clones.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Etkin, L D -- Roberts, M -- GM31479-01/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 Jul 1;221(4605):67-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857265" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Clone Cells ; DNA, Recombinant/metabolism ; Genes ; Histones/*genetics ; *Nuclear Transfer Techniques ; Plasmids ; Sea Urchins/genetics ; Xenopus laevis/genetics
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  • 40
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    Normalization of spiroperidol binding in the denervated rat striatum by homologous grafts of substantia nigra (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-11-25
    Description: Transplantation of embryonic substantia nigra into the adult rat brain decreases the motor asymmetry that is produced by dopamine receptor supersensitivity after a unilateral lesion of the substantia nigra. The authors report that this effect of transplantation is specific to grafts of substantia nigra. They also report that, in conjunction with the decrease in motor asymmetry, these grafts cause postsynaptic dopaminergic binding sites to return to normal density as measured by tritiated spiroperidol autoradiography. Thus, in animals with brain lesions, grafts of substantia nigra produce a long-term alteration in the functional status of host brain cell receptors that is associated with a reduction in the behavioral deficit.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Freed, W J -- Ko, G N -- Niehoff, D L -- Kuhar, M J -- Hoffer, B J -- Olson, L -- Cannon-Spoor, H E -- Morihisa, J M -- Wyatt, R J -- MH-00289/MH/NIMH NIH HHS/ -- MH-25951/MH/NIMH NIH HHS/ -- NS-09199/NS/NINDS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1983 Nov 25;222(4626):937-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6635666" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apomorphine/pharmacology ; Autoradiography ; Denervation ; Dextroamphetamine/pharmacology ; Motor Activity/drug effects ; Rats ; Rats, Inbred Strains ; Receptors, Dopamine/*metabolism ; Spiperone/metabolism ; Substantia Nigra/*transplantation
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  • 41
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    Translocation and rearrangements of the c-myc oncogene locus in human undifferentiated B-cell lymphomas (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-02-25
    Description: The locus for the cellular myc (c-myc) oncogene in humans is located on the region of chromosome 8 that is translocated to chromosome 14 in cells from most undifferentiated B-cell lymphomas. It is shown in this study that the c-myc locus is rearranged in 5 out of 15 cell lines from patients with undifferentiated B-cell lymphomas, and that the rearrangement involves a region at the 5' side of an apparently intact c-myc gene. In at least three patients, this rearranged region appears to contain immunoglobulin heavy chain mu sequences that are located on chromosome 14. The data indicate that this region contains the crossover point between chromosomes 8 and 14. The break point can occur at different positions on both chromosomes among individual cell lines.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dalla-Favera, R -- Martinotti, S -- Gallo, R C -- Erikson, J -- Croce, C M -- New York, N.Y. -- Science. 1983 Feb 25;219(4587):963-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6401867" target="_blank"〉PubMed〈/a〉
    Keywords: B-Lymphocytes/*physiology ; Cell Differentiation ; Chromosome Mapping ; Gene Expression Regulation ; Genes ; Genetic Linkage ; Humans ; Immunoglobulin Constant Regions/genetics ; Immunoglobulin Heavy Chains/genetics ; Lymphoma/*genetics ; *Oncogenes ; Recombination, Genetic
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    Somatic cell genetics and gene families (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-05-27
    Description: The utility of somatic cell genetic analysis for the chromosomal localization of genes in mammals is well established. With the development of recombinant DNA probes and efficient blotting techniques that allow visualization of single-copy cellular genes, somatic cell genetics has been extended from the level of phenotypes expressed by whole cells to the level of the cellular genome itself. This extension has proved invaluable for the analysis of genes not readily expressed in somatic cell hybrids and for the study of multigene families, especially pseudogenes dispersed in different chromosomes throughout the genome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉D'Eustachio, P -- Ruddle, F H -- GM-09966/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 May 27;220(4600):919-24.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6573776" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; *Chromosome Mapping ; Chromosomes, Human ; Cricetinae ; Cricetulus ; DNA, Recombinant/metabolism ; Genes ; Genetic Markers ; Genetics ; Humans ; Hybrid Cells/metabolism ; Mice ; Polymorphism, Genetic ; RNA, Messenger/metabolism
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  • 43
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    Transcription of class III genes: formation of preinitiation complexes (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-11-18
    Description: Class III genes require multiple cellular factors for transcription by RNA polymerase III; these genes form stable transcription complexes, which in the case of Xenopus 5S genes are correlated with differential expression in vivo. The minimal number and identity of the factors required to form both stable and metastable complexes on three class III genes (encoding, respectively, 5S RNA, transfer RNA, and adenovirus VA RNA species) were determined. Stable complex formation requires one common factor, whose recognition site was analyzed, and either no additional factors (the VA gene), a second common factor (the transfer RNA gene), or a third gene-specific factor (the 5S gene). The mechanism of stable complex formation and its relevance to transcriptional regulation were examined in light of the various factors and the promoter sequences recognized by these factors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lassar, A B -- Martin, P L -- Roeder, R G -- CA 24223/CA/NCI NIH HHS/ -- CA 24891/CA/NCI NIH HHS/ -- GM07200/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 Nov 18;222(4625):740-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6356356" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; DNA-Directed RNA Polymerases/*genetics ; Eukaryotic Cells/physiology ; Gene Expression Regulation ; Genes ; Humans ; Operon ; RNA Polymerase III/*genetics ; RNA, Ribosomal/genetics ; RNA, Transfer/genetics ; RNA, Viral/genetics ; Transcription Factors/genetics ; *Transcription, Genetic
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  • 44
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    Multigene family for sarcomeric myosin heavy chain in mouse and human DNA: localization on a single chromosome (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-08-19
    Description: Cloned myosin heavy chain DNA probes from rat and human were hybridized to restriction endonuclease digests of genomic DNA from somatic cell hybrids and their parental cells. The mouse myosin heavy chain genes detectable by this assay were located on chromosome 11, and three different human sarcomeric myosin heavy chain genes were mapped to the short arm of chromosome 17. A synteny between myosin heavy chain and two unrelated markers, thymidine kinase and galactokinase, was found to be preserved in the rodent and human genomes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Leinwand, L A -- Fournier, R E -- Nadal-Ginard, B -- Shows, T B -- GM26449/GM/NIGMS NIH HHS/ -- GM29090/GM/NIGMS NIH HHS/ -- GM31281/GM/NIGMS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1983 Aug 19;221(4612):766-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6879174" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Evolution ; Chromosome Mapping ; Chromosomes, Human, 16-18 ; Genes ; Genetic Linkage ; Humans ; Mice ; Myosins/*genetics
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    Psychological stress induces sodium and fluid retention in men at high risk for hypertension (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-04-22
    Description: Exposure to competitive mental tasks significantly reduced the urinary sodium and fluid excreted by young men with one or two hypertensive parents or with borderline hypertension. In this high-risk group, the degree of retention was directly related to the magnitude of heart rate increase during stress, suggesting common mediation by way of the sympathetic nervous system. Thus, psychological stress appears to induce changes in renal excretory functions that may play a critical role in long-term blood pressure regulation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Light, K C -- Koepke, J P -- Obrist, P A -- Willis, P W 4th -- HL-01096/HL/NHLBI NIH HHS/ -- HL-18976/HL/NHLBI NIH HHS/ -- HL-23718/HL/NHLBI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1983 Apr 22;220(4595):429-31.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836285" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Blood Pressure ; Heart Rate ; Humans ; Hypertension/etiology/*physiopathology ; Kidney/physiopathology ; Male ; Risk ; Sodium/*metabolism ; Stress, Psychological/metabolism/*physiopathology ; *Water-Electrolyte Balance
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  • 46
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    Erectile mechanisms in man (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-06-03
    Description: Increases in penile circumference during sleep-related erections in human subjects closely reflected increases in penile blood flow, and bursts of activity in the bulbocavernosus and ischiocavernosus muscles were temporally related to these increases. The penile arterial system and the perineal muscles appear to have important coordinated roles in human penile erection. Monitoring sleep-related erections and penile blood flow holds promise for the study of erectile mechanisms and dysfunction and for screening of drugs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Karacan, I -- Aslan, C -- Hirshkowitz, M -- AG02414-03/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 1983 Jun 3;220(4601):1080-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6844930" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Electroencephalography ; Electromyography ; Electrooculography ; Heart Rate ; Humans ; Male ; Penis/blood supply/*physiology ; Sleep/physiology
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    Nucleotide sequence of a light chain gene of the mouse I-A subregion: A beta d (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-08-19
    Description: Ia (I region-associated) antigens are cell-surface glycoproteins involved in the regulation of immune responsiveness. They are composed of one heavy (alpha) and one light (beta) polypeptide chain. We have sequenced the gene encoding the A beta d chain of the BALB/c mouse. The presence of six exons is predicted by comparison with the complementary DNA sequences of human beta chains and with partial protein sequence data for the A beta d polypeptide. Sequence comparisons have been made to other proteins involved in immune responses and the consequent implications for the evolutionary relationships of these genes are discussed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Malissen, M -- Hunkapiller, T -- Hood, L -- New York, N.Y. -- Science. 1983 Aug 19;221(4612):750-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6410508" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Biological Evolution ; Codon ; Genes ; *Genes, MHC Class II ; Macromolecular Substances ; Major Histocompatibility Complex ; Mice ; beta 2-Microglobulin/genetics
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  • 48
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    Phorbol ester receptors: autoradiographic identification in the developing rat (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-12-02
    Description: Autoradiography with 3H-labeled phorbol dibutyrate was used for the light microscopic detection of phorbol ester receptors in rat fetuses. In 15- and 18-day fetuses, as well as in adult rats, receptors were found to be concentrated in the central nervous system. The localization of receptors in the ventral marginal zone of the fetal neural tube, the lens of the eye, and other sites suggests a role for phorbol ester receptors in cellular process extension and cell-cell interaction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Murphy, K M -- Gould, R J -- Oster-Granite, M L -- Gearhart, J D -- Snyder, S H -- New York, N.Y. -- Science. 1983 Dec 2;222(4627):1036-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6316499" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autoradiography ; Brain/embryology ; Brain Chemistry ; *Caenorhabditis elegans Proteins ; Carrier Proteins ; Cell Communication ; Cell Division ; Central Nervous System/analysis/*embryology ; Eye/embryology ; Fetus/*analysis ; Intestines/embryology ; Lens, Crystalline/embryology ; Phorbol 12,13-Dibutyrate ; Phorbol Esters/*metabolism ; Phorbols/*metabolism ; *Protein Kinase C ; Rats ; Rats, Inbred Strains ; Receptors, Cell Surface/*analysis ; *Receptors, Drug
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  • 49
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    Alcohol-induced spasms of cerebral blood vessels: relation to cerebrovascular accidents and sudden death (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-04-15
    Description: Ethyl alcohol produced graded contractile responses in rat cerebral arterioles and venules in vivo and in isolated canine basilar and middle cerebral arteries at a concentration range (10 to 500 milligrams per deciliter) which parallels that needed for its graded effects of euphoria, mental haziness, muscular incoordination, stupor, and coma in humans. Two specific calcium antagonists, nimodipine and verapamil, prevented or reversed the alcohol-induced cerebrovasospasm and thus may prove valuable in treating the hypertension and stroke observed in heavy users of alcohol.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Altura, B M -- Altura, B T -- Gebrewold, A -- DA02339/DA/NIDA NIH HHS/ -- HL29600/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1983 Apr 15;220(4594):331-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836278" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cerebral Arteries/drug effects ; Cerebrovascular Circulation/drug effects ; Cerebrovascular Disorders/*chemically induced ; Death, Sudden/*etiology ; Dogs ; Ethanol/*adverse effects ; Humans ; Ischemic Attack, Transient/*chemically induced ; Male ; Rats ; Rats, Inbred Strains ; Vasoconstriction/drug effects
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    Cancer chemotherapy (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-04-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cairns, J -- Boyle, D -- Frei, E 3rd -- New York, N.Y. -- Science. 1983 Apr 15;220(4594):252, 254, 256.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836271" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Antineoplastic Agents/*therapeutic use ; Child ; Child, Preschool ; Female ; Humans ; Infant ; Leukemia/drug therapy/mortality ; Male ; Neoplasms/*drug therapy/mortality ; United States
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    Endogenous pyrogen activity in human plasma after exercise (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-05-06
    Description: Plasma obtained from human subjects after exercise and injected intraperitoneally into rats elevated rat rectal temperature and depressed plasma iron and zinc concentrations. The pyrogenic component was heat-denaturable and had an apparent molecular weight of 14,000 daltons. Human mononuclear leukocytes obtained after exercise and incubated in vitro released a factor into the medium that also elevated body temperature in rats and reduced trace metal concentrations. These results suggest that endogenous pyrogen, a protein mediator of fever and trace metal metabolism during infection, is released during exercise.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cannon, J G -- Kluger, M J -- AI 13878/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1983 May 6;220(4597):617-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836306" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Animals ; Body Temperature/drug effects ; Female ; Humans ; *Interleukin-1 ; Iron/blood ; Leukocytes/physiology ; Male ; Molecular Weight ; *Physical Exertion ; Proteins/physiology ; Pyrogens/blood/*metabolism ; Rats ; Rats, Inbred Strains ; Zinc/blood
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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
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    Local cerebral blood flow increases during auditory and emotional processing in the conscious rat (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-08-05
    Description: Local cerebral blood flow was measured in rats by the 14C-labeled iodoantipyrine technique with quantitative autoradiography during the processing of environmental stimuli. Presentation of a tone increased blood flow in the auditory but not the visual pathway. When the animal had previously been conditioned to fear the tone, blood flow additionally increased in the hypothalamus and amygdala. Local cerebral blood flow can thus be used to detect patterns of cerebral excitation associated with transient (30- to 40-second) mental events in experimental animals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉LeDoux, J E -- Thompson, M E -- Iadecola, C -- Tucker, L W -- Reis, D J -- HL 18974/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1983 Aug 5;221(4610):576-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6867731" target="_blank"〉PubMed〈/a〉
    Keywords: Acoustic Stimulation ; Amygdala/blood supply ; Animals ; Autoradiography ; Brain/*blood supply/physiology ; Consciousness/physiology ; Emotions/*physiology ; Hearing/*physiology ; Hypothalamus/blood supply ; Male ; Rats ; Rats, Inbred Strains
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    Nucleotide sequence and expression of the diphtheria tox228 gene in Escherichia coli (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-08-26
    Description: The complete nucleotide sequence of the diphtheria tox228 gene encoding the nontoxic serologically related protein CRM228 has been determined. A comparison of the predicted amino acid sequence with the available amino acid sequences from the wild-type toxin made it possible to deduce essentially the entire nucleotide sequence of the wild-type tox gene. The signal peptide of pro-diphtheria toxin and the putative tox promoter have been identified, a highly symmetrical nucleotide sequence downstream of the toxin gene has been detected; this region may be the corynebacteriophage beta attachment site (attP). The cloned toxin gene was expressed at a low level in Escherichia coli.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaczorek, M -- Delpeyroux, F -- Chenciner, N -- Streeck, R E -- Murphy, J R -- Boquet, P -- Tiollais, P -- New York, N.Y. -- Science. 1983 Aug 26;221(4613):855-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6348945" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Cloning, Molecular ; Diphtheria Toxin/*genetics ; Escherichia coli/genetics ; Gene Expression Regulation ; Genes ; Genes, Bacterial ; Nucleic Acid Conformation ; Operon
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    L-tryptophan: a common denominator of biochemical and neurological events of acute hepatic porphyria? (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-12-02
    Description: Hepatic porphyrias are disorders of heme synthesis characterized by genetically determined lesions of one of the key enzymes of heme synthesis. In carriers of such lesions, several factors (drugs, environmental chemicals, or diet) precipitate acute and often fatal attacks of neurologic dysfunction, which are promptly relieved by intravenous infusion of heme. However, the mechanism of such heme-induced amelioration remains elusive. To probe this mechanism, the biochemical events triggered by acute hepatic heme deficiency were examined in an animal model of chemically induced porphyria. Acute hepatic heme depletion in porphyric rats was found to impair hepatic tryptophan pyrrolase activity which, in turn, elevated tryptophan and 5-hydroxytryptamine turnover in the brain. These alterations in porphyric rats were dramatically reversed by parenteral heme administration. These findings suggest that increased tryptophan and 5-hydroxytryptamine in the nervous system may be responsible for the neurologic dysfunctions observed in humans with acute attacks of hepatic porphyria.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Litman, D A -- Correia, M A -- AM-26506/AM/NIADDK NIH HHS/ -- AM-26743/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1983 Dec 2;222(4627):1031-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6648517" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/*metabolism ; Heme/*deficiency/pharmacology ; Liver/enzymology ; Liver Diseases/complications/*metabolism ; Male ; Nervous System Diseases/etiology ; Porphyrias/complications/*metabolism ; Rats ; Rats, Inbred Strains ; Serotonin/metabolism ; Tryptophan/*metabolism ; Tryptophan Oxygenase/metabolism
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    Accumulation of D-aspartic acid with age in the human brain (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-06-24
    Description: An age-related accumulation of D-aspartic acid was detected in the white matter of ten normal brains from individuals aged 30 to 80 years. Gray matter showed no systematic increase in D-aspartic acid. The rate constant for D-aspartate formation in the brain is equal to the predicted value calculated for 37 degrees C. Accumulation of the uncommon D-aspartate isomer in myelinated white matter implies that there is little or no turnover of this tissue, and this may have a bearing on dysfunction of the aging brain or on other diseases of myelin.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Man, E H -- Sandhouse, M E -- Burg, J -- Fisher, G H -- New York, N.Y. -- Science. 1983 Jun 24;220(4604):1407-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857259" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; *Aging ; Aspartic Acid/*analysis/physiology ; *Brain Chemistry ; Eye Proteins/analysis ; Humans ; Lens Nucleus, Crystalline/analysis ; Middle Aged
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    Likely T cell receptor gene cloned (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-09-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1983 Sep 23;221(4617):1278-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6612341" target="_blank"〉PubMed〈/a〉
    Keywords: Cloning, Molecular ; Genes ; Receptors, Antigen, T-Cell/*genetics
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    Organ shortage clouds new transplant era (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-07-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G -- New York, N.Y. -- Science. 1983 Jul 1;221(4605):32-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857260" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Brain Death ; Female ; Humans ; Male ; Mandatory Programs ; Middle Aged ; Tissue Donors ; *Tissue and Organ Procurement ; *Transplantation ; United States ; tissue are revolutionizing organ transplantation, but the current shortage of ; donated organs is expected to worsen. The reasons for this shortage and possible ; solutions to the problem are discussed briefly, and the ethical and legal ; implications of salvaging organs from brain-dead patients are mentioned. Presumed ; consent laws, already in force in several European countries, would drastically ; increase the number of available organs, but American ethicists are divided over ; a policy permitting automatic use of organs unless a person has left explicit ; instructions to the contrary.
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    Monkey model of Parkinson's disease (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-05-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G -- New York, N.Y. -- Science. 1983 May 13;220(4598):705.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6403987" target="_blank"〉PubMed〈/a〉
    Keywords: 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine ; Adult ; Animals ; Cats ; *Disease Models, Animal ; Haplorhini ; Humans ; Male ; Parkinson Disease/physiopathology ; Parkinson Disease, Secondary/*chemically induced ; Pyridines/*adverse effects ; Rats ; Substantia Nigra/drug effects/physiopathology ; Swine
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    New puzzles over estrogen and heart disease (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-06-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G -- New York, N.Y. -- Science. 1983 Jun 10;220(4602):1137-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857238" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; Cholesterol/blood ; Coronary Disease/*blood ; Estrogens/*blood ; Humans ; Male ; Middle Aged ; Myocardial Infarction/blood ; Risk
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    Serologic evidence of chlamydial and mycoplasmal pharyngitis in adults (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-11-25
    Description: In a study of 763 adult patients we found serologic evidence of infection (a fourfold increase in antibodies) with Chlamydia trachomatis in 20.5 percent of the patients and with Mycoplasma pneumoniae in 10.6 percent, but with group A streptococcus (by culture) in only 9.1 percent. Pharyngitis, the most common problem for which patients seek medical care in the United States, may be caused by nonviral, potentially treatable organisms more often than had been suspected.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Komaroff, A L -- Aronson, M D -- Pass, T M -- Ervin, C T -- Branch, W T Jr -- Schachter, J -- EY 02216/EY/NEI NIH HHS/ -- HS 02063/HS/AHRQ HHS/ -- HS 04066/HS/AHRQ HHS/ -- New York, N.Y. -- Science. 1983 Nov 25;222(4626):927-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6415813" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Antibodies, Bacterial/analysis ; *Chlamydia Infections/diagnosis ; *Chlamydia trachomatis/immunology ; Humans ; Middle Aged ; Mycoplasma Infections/immunology ; Mycoplasma pneumoniae/immunology ; Pharyngitis/*etiology ; Prospective Studies ; Serologic Tests
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    Fetal brain transplant: reduction of cognitive deficits in rats with frontal cortex lesions (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-07-29
    Description: Frontal cortex and cerebellar tissue from fetal rats was implanted into the damaged frontal cortex of adults. Cognitive deficits in spatial alternation learning that follow bilateral destruction of medial frontal cortex were reduced in rats with frontal cortex implants but not in those with implants of cerebellum. Histological evaluation showed that connections were made between the frontal cortex implants and host brain tissue.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Labbe, R -- Firl, A Jr -- Mufson, E J -- Stein, D G -- New York, N.Y. -- Science. 1983 Jul 29;221(4609):470-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6683427" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Behavior, Animal ; Cerebellum/*transplantation ; Cerebral Cortex/injuries/*transplantation ; Cognition Disorders/*physiopathology ; Fetus/*surgery ; Humans ; Male ; Rats ; Rats, Inbred Strains
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    Chronic Parkinsonism in humans due to a product of meperidine-analog synthesis (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-02-25
    Description: Four persons developed marked parkinsonism after using an illicit drug intravenously. Analysis of the substance injected by two of these patients revealed primarily 1-methyl-4-phenyl-1,2,5,6-tetrahydropyridine (MPTP) with trace amounts of 1-methyl-4-phenyl-4-propionoxy-piperidine (MPPP). On the basis of the striking parkinsonian features observed in our patients, and additional pathological data from one previously reported case, it is proposed that this chemical selectively damages cells in the substantia nigra.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Langston, J W -- Ballard, P -- Tetrud, J W -- Irwin, I -- New York, N.Y. -- Science. 1983 Feb 25;219(4587):979-80.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6823561" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Female ; Humans ; Male ; Meperidine/*analogs & derivatives/metabolism ; Opioid-Related Disorders/*complications ; Parkinson Disease, Secondary/*chemically induced/metabolism ; Substantia Nigra/drug effects
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    Visual sustained attention: image degradation produces rapid sensitivity decrement over time (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-04-15
    Description: Perceptual sensitivity to a visual target presented in a random continuous sequence of targets and nontargets decreased rapidly over time when stimuli were highly degraded visually but not when moderately degraded or undegraded. Large declines in sensitivity, independent of changes in response criterion, were found after only 5 minutes of observation. These rapid decrements of sensitivity to degraded targets seem to result from demands on the limited capacity of visual attention.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nuechterlein, K H -- Parasuraman, R -- Jiang, Q -- 784040-29867-5/PHS HHS/ -- MH 30911/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1983 Apr 15;220(4594):327-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836276" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; *Attention ; Child ; Discrimination (Psychology) ; Female ; Humans ; Male ; Memory ; Time Factors ; *Visual Perception
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    Insulin antibodies in insulin-dependent diabetics before insulin treatment (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-12-23
    Description: A sensitive assay was used to measure the binding of iodine-125-labeled insulin in serum obtained from 112 newly diagnosed insulin-dependent diabetics before insulin treatment was initiated. Two groups of nondiabetics served as controls: children with a variety of diseases other than diabetes and nondiabetic siblings of insulin-dependent diabetics. Eighteen of the diabetics were found to have elevated binding and 36 were above the 95th percentile of control values. The insulin-binding protein is precipitated by antibody to human immunoglobulin G, has a displacement curve that is parallel and over the same concentration range as serum from long-standing insulin-dependent diabetics, and elutes from a Sephacryl S-300 column at the position of gamma globulin. These insulin antibodies are present in a large percentage of newly diagnosed, untreated diabetics and may be an immune marker of B-cell damage.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palmer, J P -- Asplin, C M -- Clemons, P -- Lyen, K -- Tatpati, O -- Raghu, P K -- Paquette, T L -- AM17047/AM/NIADDK NIH HHS/ -- AM30780/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1983 Dec 23;222(4630):1337-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6362005" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Autoantibodies/*analysis ; Child ; Diabetes Mellitus, Type 1/drug therapy/*immunology ; Humans ; Insulin/*immunology/therapeutic use
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    Evidence for olfactory function in utero (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-07-29
    Description: Pregnant rats received 2-[14C]deoxy-D-glucose (2DG) intravenously on the last day of gestation, and their fetuses were delivered 1 hour later by cesarean section. Fetal brains showed high 2DG uptake spread throughout the accessory olfactory bulb and little or no differential uptake in the main olfactory bulb. These findings demonstrate that functional activity occurs in the accessory olfactory bulb in utero and suggest that the accessory olfactory system may be the pathway by which fetal rats detect the odor quality of their intrauterine milieu.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pedersen, P E -- Stewart, W B -- Greer, C A -- Shepherd, G M -- F32-NS06978/NS/NINDS NIH HHS/ -- NS 16993/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1983 Jul 29;221(4609):478-80.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6867725" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autoradiography ; Brain/radionuclide imaging ; Deoxyglucose/metabolism ; Female ; Fetus/*physiology ; Olfactory Bulb/physiology/radionuclide imaging ; Pregnancy ; Rats ; Rats, Inbred Strains ; Smell/*physiology
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    Insulin receptor antiserum and plant lectins mimic the direct effects of insulin on nuclear envelope phosphorylation (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-07-29
    Description: Insulin directly inhibits protein phosphorylation in isolated rat liver nuclear envelopes. In the present studies, an antiserum to insulin receptor as well as the plant lectins concanavalin A and phytohemagglutinin mimicked insulin action in isolated nuclear envelopes. These studies suggest that insulin and agents that mimic it may directly regulate nuclear functions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Purrello, F -- Burnham, D B -- Goldfine, I D -- AM 06659/AM/NIADDK NIH HHS/ -- AM 26667/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1983 Jul 29;221(4609):462-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6346487" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Concanavalin A/pharmacology ; Female ; Immune Sera ; Insulin/*pharmacology ; Lectins/*pharmacology ; Nuclear Envelope/*drug effects/metabolism ; Phosphorylation ; Phytohemagglutinins/pharmacology ; Rats ; Rats, Inbred Strains ; Receptor, Insulin/*immunology
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    Physiological correlates of prolonged sleep deprivation in rats (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-07-08
    Description: The issue of whether sleep is physiologically necessary has been unresolved because experiments that reported deleterious effects of sleep deprivation did not control for the stimuli used to prevent sleep. In this experiment, however, experimental and control rats received the same relatively mild physical stimuli, but stimulus presentations were timed to reduce sleep severely in experimental rats but not in controls. Experimental rats suffered severe pathology and death; control rats did not.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rechtschaffen, A -- Gilliland, M A -- Bergmann, B M -- Winter, J B -- MH-18428/MH/NIMH NIH HHS/ -- MH-4151/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1983 Jul 8;221(4606):182-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857280" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenal Glands/pathology ; Animals ; Body Weight ; Electroencephalography ; Male ; Organ Size ; Rats ; Rats, Inbred Strains ; Sleep Deprivation/*physiology ; Time Factors
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    Isolation of a T-lymphotropic retrovirus from a patient at risk for acquired immune deficiency syndrome (AIDS) (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-05-20
    Description: A retrovirus belonging to the family of recently discovered human T-cell leukemia viruses (HTLV), but clearly distinct from each previous isolate, has been isolated from a Caucasian patient with signs and symptoms that often precede the acquired immune deficiency syndrome (AIDS). This virus is a typical type-C RNA tumor virus, buds from the cell membrane, prefers magnesium for reverse transcriptase activity, and has an internal antigen (p25) similar to HTLV p24. Antibodies from serum of this patient react with proteins from viruses of the HTLV-I subgroup, but type-specific antisera to HTLV-I do not precipitate proteins of the new isolate. The virus from this patient has been transmitted into cord blood lymphocytes, and the virus produced by these cells is similar to the original isolate. From these studies it is concluded that this virus as well as the previous HTLV isolates belong to a general family of T-lymphotropic retroviruses that are horizontally transmitted in humans and may be involved in several pathological syndromes, including AIDS.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barre-Sinoussi, F -- Chermann, J C -- Rey, F -- Nugeyre, M T -- Chamaret, S -- Gruest, J -- Dauguet, C -- Axler-Blin, C -- Vezinet-Brun, F -- Rouzioux, C -- Rozenbaum, W -- Montagnier, L -- New York, N.Y. -- Science. 1983 May 20;220(4599):868-71.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6189183" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*microbiology ; Adult ; Animals ; Antibodies, Viral/immunology ; Cells, Cultured ; Humans ; Male ; Microscopy, Electron ; RNA-Directed DNA Polymerase/metabolism ; Retroviridae/*isolation & purification ; T-Lymphocytes/microbiology ; Tumor Virus Infections/*microbiology
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    Insulin elicits ingestion in decerebrate rats (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-07-08
    Description: Insulin administered to rats reliably elicits ingestion of food. To determine whether the neural mechanisms sufficient to control insulin-elicited ingestion are located in or caudal to the forebrain, decerebrate rats were treated with insulin and ingestive responses were measured. Insulin treatment produced hypoglycemia that was comparable, in magnitude and duration, in control and decerebrate rats. Decerebrate and control rats ingested significantly more sucrose solution while hypoglycemic than while normoglycemic. In contrast, insulin did not augment the water consumption of either group. These data indicate that neural systems caudal to the forebrain are sufficient to control ingestive consummatory behavior through the integration of metabolic signals generated by insulin treatment and taste afferent input from the oropharynx.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Flynn, F W -- Grill, H J -- AM 21397/AM/NIADDK NIH HHS/ -- T32-MH15012/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1983 Jul 8;221(4606):188-90.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6344221" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood Glucose/analysis ; Brain/*physiology ; Decerebrate State/physiopathology ; Eating/*drug effects ; Energy Metabolism ; Insulin/*pharmacology ; Male ; Rats ; Rats, Inbred Strains ; Taste/physiology
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    Simian sarcoma virus onc gene, v-sis, is derived from the gene (or genes) encoding a platelet-derived growth factor (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-07-15
    Description: The transforming protein of a primate sarcoma virus and a platelet-derived growth factor are derived from the same or closely related cellular genes. This conclusion is based on the demonstration of extensive sequence similarity between the transforming protein derived from the simian sarcoma virus onc gene, v-sis, and a human platelet-derived growth factor. The mechanism by which v-sis transforms cells could involve the constitutive expression of a protein with functions similar or identical to those of a factor active transiently during normal cell growth.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Doolittle, R F -- Hunkapiller, M W -- Hood, L E -- Devare, S G -- Robbins, K C -- Aaronson, S A -- Antoniades, H N -- CA30101/CA/NCI NIH HHS/ -- RR00757/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1983 Jul 15;221(4607):275-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6304883" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cebidae ; Cell Transformation, Neoplastic/metabolism ; Genes ; Growth Substances/*genetics/physiology ; Humans ; *Oncogenes ; Peptides/*genetics/physiology ; Platelet-Derived Growth Factor ; Retroviridae/*genetics ; Sarcoma Virus, Woolly Monkey/*genetics
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    Hypnotically created memory among highly hypnotizable subjects (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-11-04
    Description: A pseudomemory of having been awakened by some loud noises during a night of the previous week was suggested to 27 highly hypnotizable subjects during hypnosis. Posthypnotically, 13 of them stated that the suggested event had actually occurred. This finding has implications for the investigative use of hypnosis in a legal context.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Laurence, J R -- Perry, C -- New York, N.Y. -- Science. 1983 Nov 4;222(4623):523-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6623094" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Female ; Humans ; *Hypnosis ; Male ; *Memory ; Middle Aged ; Personality
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    Translocations among antibody genes in human cancer (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-11-18
    Description: The characteristic chromosomal translocations that occur in certain human malignancies offer opportunities to understand how two gene systems can affect one another when they are accidentally juxtaposed. In the case of Burkitt lymphoma, such a translocation joins the cellular oncogene, c-myc, to a region encoding one of the immunoglobulin genes. In at least one example, the coding sequence of the rearranged c-myc gene is identical to that of the normal gene, implying that the gene must be quantitatively, rather than qualitatively, altered in its expression if it is to play a role in transformation. One might expect to find the rearranged c-myc gene in a configuration that would allow it to take advantage of one of the known immunoglobulin promoters or enhancer elements. However, the rearranged c-myc gene is often placed so that it can utilize neither of these structures. Since the level of c-myc messenger RNA is often elevated in Burkitt cells, the translocation may lead to a deregulation of the c-myc gene. Further, since the normal allele in a Burkitt cell is often transcriptionally silent in the presence of a rearranged allele, a model for c-myc regulation is suggested that involves a trans-acting negative control element that might use as its target a highly conserved portion of the c-myc gene encoding two discrete transcriptional promoters.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Leder, P -- Battey, J -- Lenoir, G -- Moulding, C -- Murphy, W -- Potter, H -- Stewart, T -- Taub, R -- New York, N.Y. -- Science. 1983 Nov 18;222(4625):765-71.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6356357" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Burkitt Lymphoma/*genetics ; Cell Transformation, Neoplastic/etiology ; Chromosome Aberrations/*genetics ; Chromosome Disorders ; Chromosome Mapping ; Gene Expression Regulation ; Genes ; Humans ; Immunoglobulins/genetics ; Models, Biological ; Neoplasms/*genetics ; *Oncogenes ; *Translocation, Genetic
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    Serum factor supporting long-term survival of rat central neurons in culture (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-06-24
    Description: Gel filtration of serum at pH 3.6 yielded a fraction that supported long-term (months) survival of dissociated rat central neurons in monolayer culture more reliably than the traditionally used unfractionated serum. The cultures remained neuron-rich, because this fraction did not support the proliferation of glia and fibroblasts that occurs in whole serum. With an apparent molecular weight of 55,000 and an isoelectric point of 5.6, the active factor (or factors) in this fraction is distinct from any well-defined growth factor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaufman, L M -- Barrett, J N -- NS07044/NS/NINDS NIH HHS/ -- NS12207/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1983 Jun 24;220(4604):1394-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857258" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cattle ; *Cell Survival/drug effects ; Cells, Cultured ; Chromatography, Gel ; Horses ; Isoelectric Focusing ; Molecular Weight ; Nerve Growth Factors/isolation & purification/*pharmacology ; Neurons/drug effects/*physiology ; Rats ; Rats, Inbred Strains ; Spinal Cord/cytology
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    Surviving heat shock and other stresses (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-07-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1983 Jul 15;221(4607):251-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6344222" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Drosophila/metabolism ; Escherichia coli/metabolism ; Genes ; Heat-Shock Proteins ; Hot Temperature/*adverse effects ; Humans ; Proteins/physiology
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    Cloning the acetylcholine receptor genes (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-03-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1983 Mar 4;219(4588):1055-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6823566" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cloning, Molecular ; Genes ; Receptors, Cholinergic/*genetics ; Torpedo
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    In situ hybridization to study the origin and fate of identified neurons (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-11-18
    Description: Egg-laying behavior in Aplysia is mediated by a set of peptides, including egg-laying hormone (ELH), which are released by a cluster of identified neurons, the bag cells. A family of neuropeptide genes which includes the gene encoding ELH along with two additional genes encoding the A and B peptides thought to initiate the egg-laying process has been isolated and their nucleotide sequence has been determined. In situ hybridization and immunofluorescence was used to explore the origin and distribution of the neurons that express this family of genes. The ELH genes are expressed, not only in the bag cells, but in an extensive system of neurons distributed in four of the five ganglia of the central nervous system. The genes for ELH are expressed in these cells early in the animal's life cycle. As a result, it was possible to use in situ hybridization to trace the cells expressing ELH to their site of origin. The cells originate outside the central nervous system in the ectoderm of the body wall and appear to migrate to their final locations within the central nervous system by crawling along strands of connective tissue.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McAllister, L B -- Scheller, R H -- Kandel, E R -- Axel, R -- 5 PO1 CA-23767/CA/NCI NIH HHS/ -- GM-32099/GM/NIGMS NIH HHS/ -- NCL-5RO1 CA-16346/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1983 Nov 18;222(4625):800-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6356362" target="_blank"〉PubMed〈/a〉
    Keywords: Age Factors ; Animals ; Aplysia/*physiology ; Behavior, Animal/*physiology ; Cell Differentiation ; Female ; *Gene Expression Regulation ; Genes ; Invertebrate Hormones/genetics ; Nerve Tissue Proteins/*genetics ; Neurons/*physiology ; Nucleic Acid Hybridization ; Oviposition ; RNA, Messenger/genetics
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    Chromosome localization of highly repetitive human DNA's and amplified ribosomal DNA with restriction enzymes (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-01-28
    Description: Restriction endonucleases cut and partially removed DNA throughout fixed air-dried human metaphase chromosomes. Some enzymes produced a G-banding pattern; some revealed the presence of multiple chromosome-specific classes of highly repetitive DNA in C-band heterochromatin. Enzymes that produced the informative C-band patterns had recognition sequences that were four or five, but not six, base pairs long and did not contain a cytosine-guanine doublet. In both rat and human chromosomes, regions containing amplified ribosomal RNA genes were specifically removed by the restriction endonuclease Msp I.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, D A -- Choi, Y C -- Miller, O J -- CA27655/CA/NCI NIH HHS/ -- GM25193/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 Jan 28;219(4583):395-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6294832" target="_blank"〉PubMed〈/a〉
    Keywords: Chromosome Banding ; Chromosome Mapping ; DNA Restriction Enzymes ; Gene Amplification ; Genes ; Humans ; RNA, Ribosomal/*genetics ; *Repetitive Sequences, Nucleic Acid
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    Stimulation of prostaglandin biosynthesis by urine of the human fetus may serve as a trigger for parturition (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-04-29
    Description: Urine of the human fetus stimulated prostaglandin biosynthesis in vitro by increasing the conversion of arachidonic acid into prostaglandins. The stimulatory activity in urine from fetuses delivered at term after labor of spontaneous onset was greater than that in urine from fetuses delivered by cesarean section at term before the onset of labor. Such stimulation of prostaglandin biosynthesis by the fetal membranes, by way of a substance released into the urine and thence into amniotic fluid, could serve as a signal for the initiation of parturition.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Strickland, D M -- Saeed, S A -- Casey, M L -- Mitchell, M D -- 5-P50-HD11149/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1983 Apr 29;220(4596):521-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6573023" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Dinoprostone ; Extraembryonic Membranes/physiology ; Female ; Fetus/*physiology ; Humans ; *Labor Onset ; *Labor, Obstetric ; Male ; Pregnancy ; Prostaglandins/*biosynthesis ; Prostaglandins E/biosynthesis ; *Urine
    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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  • 80
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    Isolation of human C-reactive protein complementary DNA and localization of the gene to chromosome 1 (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-07-01
    Description: With a synthetic oligonucleotide mixture as probe, complementary DNA clones of C-reactive protein were isolated from an adult human liver complementary DNA library. The clones ranged in size from 700 to 1100 base pairs and were identified by partial DNA sequence analysis. One complementary DNA clone was used as a probe for hybridization with human-rodent DNA's isolated from somatic cell hybrids and bound to nitrocellulose filters (Southern blot analysis) to assign the human C-reactive protein gene to chromosome 1.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Whitehead, A S -- Bruns, G A -- Markham, A F -- Colten, H R -- Woods, D E -- AI15033/AI/NIAID NIH HHS/ -- HD4807/HD/NICHD NIH HHS/ -- HL22487/HL/NHLBI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1983 Jul 1;221(4605):69-71.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857266" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; C-Reactive Protein/*genetics ; *Chromosome Mapping ; *Chromosomes, Human, 1-3 ; Cloning, Molecular ; Cricetinae ; DNA/*genetics/isolation & purification ; Genes ; Humans ; Hybrid Cells/metabolism ; Mice
    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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  • 81
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    Ionizing radiation decreases veratridine-stimulated uptake of sodium in rat brain synaptosomes (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-06-03
    Description: Veratridine-stimulated uptake of sodium-22 in brain synaptosomes was significantly reduced by ionizing radiation over a dose range of 10 to 1000 rads. The response was dose-dependent and involved a decrease in the maximum effect of veratridine on uptake. The central nervous system may be more sensitive to ionizing radiation than generally thought, perhaps through a loss of the ability of the sodium channel to respond properly to stimulation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wixon, H N -- Hunt, W A -- New York, N.Y. -- Science. 1983 Jun 3;220(4601):1073-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6302846" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/drug effects/*radiation effects ; Dose-Response Relationship, Drug ; Dose-Response Relationship, Radiation ; Ion Channels/drug effects/radiation effects ; Male ; Rats ; Rats, Inbred Strains ; Sodium/*metabolism ; Synaptosomes/drug effects/*radiation effects ; Veratridine/*pharmacology ; Veratrine/*analogs & derivatives
    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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  • 82
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    Directed mutagenesis of dihydrofolate reductase (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-11-18
    Description: Three mutations of the enzyme dihydrofolate reductase were constructed by oligonucleotide-directed mutagenesis of the cloned Escherichia coli gene. The mutations--at residue 27, aspartic acid replaced with asparagine; at residue 39, proline replaced with cysteine; and at residue 95, glycine replaced with alanine--were designed to answer questions about the relations between molecular structure and function that were raised by the x-ray crystal structures. Properties of the mutant proteins show that Asp-27 is important for catalysis and that perturbation of the local structure at a conserved cis peptide bond following Gly-95 abolishes activity. Substitution of cysteine for proline at residue 39 results in the appearance of new forms of the enzyme that correspond to various oxidation states of the cysteine. One of these forms probably represents a species cross-linked by an intrachain disulfide bridge between the cysteine at position 85 and the new cysteine at position 39.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Villafranca, J E -- Howell, E E -- Voet, D H -- Strobel, M S -- Ogden, R C -- Abelson, J N -- Kraut, J -- CA17374/CA/NCI NIH HHS/ -- F32 GM09375/GM/NIGMS NIH HHS/ -- GM10928/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 Nov 18;222(4625):782-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6356360" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Disulfides ; Escherichia coli/genetics ; Gene Expression Regulation ; Genes ; Genes, Bacterial ; *Mutation ; Structure-Activity Relationship ; Tetrahydrofolate Dehydrogenase/*genetics
    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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  • 83
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    High fetal estrogen concentrations: correlation with increased adult sexual activity and decreased aggression in male mice (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-06-17
    Description: In the house mouse (Mus musculus), fetuses may develop in utero next to siblings of the same or opposite sex. The amniotic fluid of the female fetuses contains higher concentrations of estradiol than that of male fetuses. Male fetuses that developed in utero between female fetuses had higher concentrations of estradiol in their amniotic fluid than males that were located between other male fetuses during intrauterine development. They were also more sexually active as adults, less aggressive, and had smaller seminal vesicles than males that had developed between other male fetuses in utero. These findings raise the possibility that during fetal life circulating estrogens may interact with circulating androgens both in regulating the development of sex differences between males and females and in producing variation in phenotype among males and among females.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉vom Saal, F S -- Grant, W M -- McMullen, C W -- Laves, K S -- MH35079/MH/NIMH NIH HHS/ -- RR07053/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1983 Jun 17;220(4603):1306-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857252" target="_blank"〉PubMed〈/a〉
    Keywords: Aggression/*drug effects ; Amniotic Fluid/analysis ; Animals ; Estradiol/analysis/*pharmacology/physiology ; Female ; Fetus/*drug effects/physiology ; Humans ; Male ; Mice ; Progesterone/pharmacology ; Rats ; Rats, Inbred Strains ; Sex Differentiation/drug effects ; Sexual Behavior, Animal/*drug effects/physiology ; Testosterone/analysis/pharmacology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 84
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    Spontaneous orofacial dyskinesia and dopaminergic function in rats after 6 months of neuroleptic treatment (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-04-29
    Description: A syndrome of spontaneous orofacial dyskinesia was identified in groups of rats treated for 6 months with a wide range of neuroleptic drugs. Phenothiazines, thioxanthenes, and substituted benzamides were particularly likely to induce the syndrome. It was observed in the presence of a functional blockade of dopamine receptors and endured for at least 2.5 months after drug withdrawal. There was no relation between the syndrome and changes in striatal dopamine receptors, as indexed by the binding of tritiated spiperone and tritiated cis(Z)-flupenthixol. The syndrome parallels several of the features of clinical tardive dyskinesia, whose pathophysiology thus may not involve changes in the characteristics of striatal dopamine receptors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Waddington, J L -- Cross, A J -- Gamble, S J -- Bourne, R C -- New York, N.Y. -- Science. 1983 Apr 29;220(4596):530-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6132447" target="_blank"〉PubMed〈/a〉
    Keywords: Administration, Oral ; Animals ; Antipsychotic Agents/*adverse effects ; Dyskinesia, Drug-Induced/*etiology ; Fluphenazine/administration & dosage/adverse effects/analogs & derivatives ; Haloperidol/adverse effects/pharmacology ; Humans ; Injections, Intramuscular ; Male ; Rats ; Rats, Inbred Strains ; Receptors, Dopamine/*drug effects/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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  • 85
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    Differential effects of classical and atypical antipsychotic drugs on A9 and A10 dopamine neurons (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-09-09
    Description: Prolonged treatment with classical antipsychotic drugs decreased the number of spontaneously active dopamine neurons in both the substantia nigra (A9) and the ventral tegmental area (A10) of the rat brain. In contrast, treatment with atypical antipsychotic drugs selectively decreased the number of A10 dopamine neurons. Related drugs lacking antipsychotic efficacy failed to decrease dopamine activity. These findings suggest that the inability of atypical antipsychotic drugs to decrease A9 dopamine neuronal activity may be related to their lower potential for causing tardive dyskinesia and that the inactivation of A10 neurons may be involved in the delayed onset of therapeutic effects during treatment.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉White, F J -- Wang, R Y -- MH 00378/MH/NIMH NIH HHS/ -- MH-34424/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1983 Sep 9;221(4615):1054-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6136093" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antipsychotic Agents/*pharmacology ; Dopamine/*metabolism ; Male ; Metoclopramide/pharmacology ; Mice ; Neurons/metabolism ; Pons/*metabolism ; Rats ; Rats, Inbred Strains ; Substantia Nigra/*metabolism ; 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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