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  • American Association for the Advancement of Science (AAAS)  (2,804)
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  • 1
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-05-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Oliver, J H Jr -- New York, N.Y. -- Science. 1988 May 20;240(4855):967.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3368789" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Arthropod Vectors ; Government Agencies ; Humans ; *Research Support as Topic ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 1988-01-15
    Description: By means of a selective DNA amplification technique called polymerase chain reaction, proviral sequences of the human immunodeficiency virus (HIV-1) were identified directly in DNA isolated from peripheral blood mononuclear cells (PBMCs) of persons seropositive but not in DNA isolated from PBMCs of persons seronegative for the virus. Primer pairs from multiple regions of the HIV-1 genome were used to achieve maximum sensitivity of provirus detection. HIV-1 sequences were detected in 100% of DNA specimens from seropositive, homosexual men from whom the virus was isolated by coculture, but in none of the DNA specimens from a control group of seronegative, virus culture-negative persons. However, HIV-1 sequences were detected in 64% of DNA specimens from seropositive, virus culture-negative homosexual men. This method of DNA amplification made it possible to obtain results within 3 days, whereas virus isolation takes up to 3 to 4 weeks. The method may therefore be used to complement or replace virus isolation as a routine means of determining HIV-1 infection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ou, C Y -- Kwok, S -- Mitchell, S W -- Mack, D H -- Sninsky, J J -- Krebs, J W -- Feorino, P -- Warfield, D -- Schochetman, G -- New York, N.Y. -- Science. 1988 Jan 15;239(4837):295-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Infectious Diseases, Centers for Disease Control, Atlanta, GA 30333.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3336784" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*microbiology ; Base Sequence ; DNA, Viral/*blood ; DNA-Directed DNA Polymerase ; *Gene Amplification ; HIV/*genetics/isolation & purification ; HIV Seropositivity ; Homosexuality ; Humans ; Leukocytes, Mononuclear/*analysis ; Male ; Nucleic Acid Amplification Techniques ; Nucleic Acid Hybridization ; Virus Cultivation
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  • 3
    Publication Date: 1988-07-15
    Description: Odorant-binding protein (OBP) is found in nasal epithelium, and it selectively binds odorants. Three complementary DNAs encoding rat odorant-binding protein have now been cloned and sequenced. One clone contains an open reading frame predicted to encode an 18,091-dalton protein. RNA blot analysis confirms the localization of OBP messenger RNA in the nasal epithelium. This OBP has 33 percent amino acid identity to alpha 2-microglobulin, a secreted plasma protein. Other members of an alpha 2-microglobulin superfamily bind and transport hydrophobic ligands. Thus, OBP probably binds and carries odorants within the nasal epithelium to putative olfactory receptors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pevsner, J -- Reed, R R -- Feinstein, P G -- Snyder, S H -- DA-00074/DA/NIDA NIH HHS/ -- GM-07626/GM/NIGMS NIH HHS/ -- P01 CA16519-13/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1988 Jul 15;241(4863):336-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3388043" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Carrier Proteins/*genetics ; Cloning, Molecular ; Ligands ; Membrane Proteins/*genetics ; Molecular Sequence Data ; Nasal Mucosa/*physiology ; Rats ; *Receptors, Odorant ; Smell/*physiology
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  • 4
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-02-05
    Description: The acquired immunodeficiency syndrome (AIDS) and infection with the human immunodeficiency virus type 1 (HIV-1) constitute a worldwide public health problem. Whereas in Europe and in most of the Americas transmission of HIV-1 has occurred predominantly among homosexual men and intravenous drug abusers, in Africa a distinct epidemiologic pattern has emerged that indicates that HIV-1 infection is mainly heterosexually acquired. Heterosexual transmission appears to be increasing in some parts of Latin America and the Caribbean, and possibly in the United States. In addition to HIV-1, at least one other human retrovirus, namely HIV-2, has been implicated as a cause of AIDS in Africa and Europe. Factors that influence heterosexual transmission of HIV-1 include genital ulcerations, early or late stages of HIV-1 infection in the index case, and possibly oral contraception and immune activation. The rate of perinatal transmission is enhanced when the mother's illness is more advanced. AIDS and HIV-1 infection may have a significant impact not only on public health, but also on the demography and socioeconomic conditions of some developing countries. Programs for the prevention and control of AIDS should be an immediate priority in all countries.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Piot, P -- Plummer, F A -- Mhalu, F S -- Lamboray, J L -- Chin, J -- Mann, J M -- New York, N.Y. -- Science. 1988 Feb 5;239(4840):573-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology, Institute of Tropical Medicine, Antwerp, Belgium.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3277271" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/epidemiology/prevention & ; control/*transmission ; Female ; HIV/classification/pathogenicity ; Humans ; Infant, Newborn ; Male ; Pregnancy ; Sexual Behavior
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-10-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Relman, A S -- New York, N.Y. -- Science. 1988 Oct 21;242(4877):348.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3175655" target="_blank"〉PubMed〈/a〉
    Keywords: Periodicals as Topic ; *Publishing ; Research/*standards ; United States
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  • 6
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-10-21
    Description: Synthesis of a small group of highly conserved proteins in response to elevated temperature and other agents that induce stress is a universal feature of prokaryotic and eukaryotic cells. Although correlative evidence suggests that these proteins play a role in enhancing survival during and after stress, there is no direct evidence to support this in mammalian cells. To assess the role of the most highly conserved heat shock protein (hsp) family during heat shock, affinity-purified monoclonal antibodies to hsp70 were introduced into fibroblasts by needle microinjection. In addition to impairing the heat-induced translocation of hsp70 proteins into the nucleus after mild heat shock treatment, injected cells were unable to survive a brief incubation at 45 degrees C. Cells injected with control antibodies survived a similar heat shock. These results indicate that functional hsp70 is required for survival of these cells during and after thermal stress.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Riabowol, K T -- Mizzen, L A -- Welch, W J -- GM33551/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1988 Oct 21;242(4877):433-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cold Spring Harbor Laboratory, NY 11724.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3175665" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies/administration & dosage ; Antigen-Antibody Complex ; Cell Survival ; Fibroblasts/cytology ; Heat-Shock Proteins/immunology/*physiology ; *Hot Temperature ; Microinjections ; Rats
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-05-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roberts, L -- New York, N.Y. -- Science. 1988 May 13;240(4854):878-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3363368" target="_blank"〉PubMed〈/a〉
    Keywords: *Administrative Personnel ; *Base Sequence ; *Chromosomes, Human ; *Genes ; Humans ; National Institutes of Health (U.S.)/*organization & administration ; Research Support as Topic/economics/legislation & jurisprudence ; United States
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  • 8
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-02-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roberts, L -- New York, N.Y. -- Science. 1988 Feb 12;239(4841 Pt 1):725-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3340854" target="_blank"〉PubMed〈/a〉
    Keywords: *Base Sequence ; *Chromosome Mapping ; *Chromosomes, Human ; Government Agencies ; Humans ; Societies, Scientific ; United States
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  • 9
    Publication Date: 1988-12-16
    Description: Fibroblasts were genetically modified to secrete nerve growth factor (NGF) by infection with a retroviral vector and then implanted into the brains of rats that had surgical lesions of the fimbria-fornix. The grafted cells survived and produced sufficient NGF to prevent the degeneration of cholinergic neurons that would die without treatment. In addition, the protected cholinergic cells sprouted axons that projected in the direction of the cellular source of NGF. These results indicate that a combination of gene transfer and intracerebral grafting may provide an effective treatment for some disorders of the central nervous system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rosenberg, M B -- Friedmann, T -- Robertson, R C -- Tuszynski, M -- Wolff, J A -- Breakefield, X O -- Gage, F H -- AG06088/AG/NIA NIH HHS/ -- HD20034/HD/NICHD NIH HHS/ -- NS24279/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1988 Dec 16;242(4885):1575-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pediatrics, University of California School of Medicine, La Jolla 92093.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3201248" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylcholinesterase/metabolism ; Animals ; Brain/cytology/enzymology/*pathology ; Cell Survival ; DNA/genetics ; Fibroblasts/metabolism/*transplantation ; Genetic Vectors ; Histocytochemistry ; Moloney murine leukemia virus/genetics ; Nerve Growth Factors/genetics/*physiology ; Rats
    Print ISSN: 0036-8075
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  • 10
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-06-03
    Description: The proto-oncogene c-fos is expressed in neurons in response to direct stimulation by growth factors and neurotransmitters. In order to determine whether the c-fos protein (Fos) and Fos-related proteins can be induced in response to polysynaptic activation, rat hindlimb motor/sensory cortex was stimulated electrically and Fos expression examined immunohistochemically. Three hours after the onset of stimulation, focal nuclear Fos staining was seen in motor and sensory thalamus, pontine nuclei, globus pallidus, and cerebellum. Moreover, 24-hour water deprivation resulted in Fos expression in paraventricular and supraoptic nuclei. Fos immunohistochemistry therefore provides a cellular method to label polysynaptically activated neurons and thereby map functional pathways.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sagar, S M -- Sharp, F R -- Curran, T -- EY05721/EY/NEI NIH HHS/ -- NS24666/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1988 Jun 3;240(4857):1328-31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, University of California, San Francisco.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3131879" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/*metabolism ; Cell Nucleus/metabolism ; Cerebellum/metabolism ; Cerebral Cortex/metabolism ; Electric Stimulation ; *Gene Expression Regulation ; Globus Pallidus/metabolism ; Hippocampus/metabolism ; Hypothalamus/metabolism ; Immunohistochemistry ; Motor Cortex/physiology ; Neurons/metabolism ; Pons/metabolism ; Proto-Oncogene Proteins/*genetics ; Proto-Oncogene Proteins c-fos ; Rats ; Thalamus/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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  • 11
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-01-01
    Description: Strong steric interactions among proteins on crowded living cell surfaces were revealed by measurements of the equilibrium spatial distributions of proteins in applied potential gradients. The fraction of accessible surface occupied by mobile surface proteins can be accurately represented by including steric exclusion in the statistical thermodynamic analysis of the data. The analyses revealed enhanced, concentration-dependent activity coefficients, implying unanticipated thermodynamic activity even at typical cell surface receptor concentrations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ryan, T A -- Myers, J -- Holowka, D -- Baird, B -- Webb, W W -- AI18306/AI/NIAID NIH HHS/ -- AI22449/AI/NIAID NIH HHS/ -- GM33028/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1988 Jan 1;239(4835):61-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physics, Cornell University, Ithaca, NY 14853.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2962287" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Membrane/*physiology ; *Membrane Fluidity ; Membrane Proteins/*physiology ; Rats ; Receptors, Fc/physiology ; Receptors, IgE ; Thermodynamics ; Tumor Cells, Cultured
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  • 12
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-08-19
    Description: In mammalian cells, the glucocorticoid receptor binds specifically to glucocorticoid response element (GRE) DNA sequences and enhances transcription from linked promoters. It is shown here that derivatives of the glucocorticoid receptor also enhance transcription when expressed in yeast. Receptor-mediated enhancement in yeast was observed in fusions of GRE sequences to the yeast cytochrome c1 (CYC1) promoter; the CYC1 upstream activator sequences were not essential, since enhancement was observed in fusions of GREs to mutant CYC1 promoters retaining only the TATA region and transcription startpoints. It is concluded that the receptor operates by a common, highly conserved mechanism in yeast and mammalian cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schena, M -- Yamamoto, K R -- CA20535-12/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1988 Aug 19;241(4868):965-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Biophysics, University of California, San Francisco 94143.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3043665" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; DNA/metabolism ; *Enhancer Elements, Genetic ; Gene Expression Regulation ; Immunoassay ; Plasmids ; Promoter Regions, Genetic ; Rats ; Receptors, Glucocorticoid/*genetics ; Saccharomyces cerevisiae/*genetics ; *Transcription, Genetic
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  • 13
    Publication Date: 1988-02-12
    Description: Recent reports of stratospheric ozone depletion have prompted concerns about the levels of solar ultraviolet radiation that reach the earth's surface. Since 1974 a network of ground-level monitoring stations in the United States has tracked measurements of biologically effective ultraviolet radiation (UVB, 290 to 330 nanometers). The fact that no increases of UVB have been detected at ground levels from 1974 to 1985 suggests that meteorological, climatic, and environmental factors in the troposphere may play a greater role in attenuating UVB radiation than was previously suspected.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Scotto, J -- Cotton, G -- Urbach, F -- Berger, D -- Fears, T -- New York, N.Y. -- Science. 1988 Feb 12;239(4841 Pt 1):762-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biostatistics Branch, National Cancer Institute, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3340857" target="_blank"〉PubMed〈/a〉
    Keywords: Humans ; Melanoma/etiology ; Meteorological Concepts ; Neoplasms, Radiation-Induced/etiology ; Skin Neoplasms/etiology ; *Sunlight/adverse effects ; *Ultraviolet Rays ; United States
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  • 14
    Publication Date: 1988-11-11
    Description: Increasing mortality in intravenous (IV) drug users not reported to surveillance as acquired immunodeficiency syndrome (AIDS) has occurred in New York City coincident with the AIDS epidemic. From 1981 to 1986, narcotics-related deaths increased on average 32% per year from 492 in 1981 to 1996 in 1986. This increase included deaths from AIDS increasing from 0 to 905 and deaths from other causes, many of which were infectious diseases, increasing from 492 to 1091. Investigations of these deaths suggest a causal association with human immunodeficiency virus (HIV) infection. These deaths may represent a spectrum of HIV-related disease that has not been identified through AIDS surveillance and has resulted in a large underestimation of the impact of AIDS on IV drug users and blacks and Hispanics.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stoneburner, R L -- Des Jarlais, D C -- Benezra, D -- Gorelkin, L -- Sotheran, J L -- Friedman, S R -- Schultz, S -- Marmor, M -- Mildvan, D -- Maslansky, R -- New York, N.Y. -- Science. 1988 Nov 11;242(4880):916-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉AIDS Research Unit, New York City Department of Health, NY 10013.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3187532" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/complications/*epidemiology/microbiology ; Cause of Death ; Endocarditis/complications ; Hiv ; HIV Seropositivity ; Homosexuality ; Humans ; Male ; New York City ; Pneumonia/complications ; Substance-Related Disorders/*complications/epidemiology/mortality ; Tuberculosis/complications
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  • 15
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-12-09
    Description: Cell types associated with angiotensinogen mRNA in rat brain were identified in individual brain sections by in situ hybridization with tritiated RNA probes or with a sulfur-35--labeled oligonucleotide combined with immunocytochemical detection of either glial fibrillary acidic protein (GFAP) for astrocytes or microtubule-associated protein (MAP-2) for neurons. Autoradiography revealed silver grains clustered primarily over GFAP-reactive soma and processes; most grain clusters were not associated with MAP-2--reactive cells. These results demonstrate that, in contrast to other known neuropeptide precursors, angiotensinogen is synthesized by glia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stornetta, R L -- Hawelu-Johnson, C L -- Guyenet, P G -- Lynch, K R -- R01 HL33513/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1988 Dec 9;242(4884):1444-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, University of Virginia School of Medicine, Charlottesville 22908.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3201232" target="_blank"〉PubMed〈/a〉
    Keywords: Angiotensinogen/*biosynthesis/genetics ; Animals ; Astrocytes/*metabolism ; Brain/*metabolism ; Glial Fibrillary Acidic Protein/analysis ; Histocytochemistry ; Microtubule-Associated Proteins/analysis ; Nucleic Acid Hybridization ; RNA, Messenger/analysis/genetics ; Rats
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  • 16
    Publication Date: 1988-04-08
    Description: Specific sigma binding sites have been identified in the mammalian brain and lymphoid tissue. In this study, certain gonadal and adrenal steroids, particularly progesterone, were found to inhibit sigma receptor binding in homogenates of brain and spleen. The findings suggest that steroids are naturally occurring ligands for sigma receptors and raise the possibility that these sites mediate some aspects of steroid-induced mental disturbances and alterations in immune functions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Su, T P -- London, E D -- Jaffe, J H -- New York, N.Y. -- Science. 1988 Apr 8;240(4849):219-21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Addiction Research Center, National Institute on Drug Abuse, Baltimore, MD 21224.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2832949" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/metabolism ; Endocrine Glands/*physiology ; Guinea Pigs ; Haloperidol/metabolism ; *Immunity ; Male ; *Nervous System Physiological Phenomena ; Phenazocine/analogs & derivatives/metabolism ; Receptors, Opioid/*metabolism ; Receptors, sigma ; Spleen/metabolism ; Steroids/*metabolism
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  • 17
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-10-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Novak, J M -- New York, N.Y. -- Science. 1988 Oct 14;242(4876):168.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3175640" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Warfare ; *Government Agencies ; United States
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  • 18
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-09-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sun, M -- New York, N.Y. -- Science. 1988 Sep 23;241(4873):1596.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3420413" target="_blank"〉PubMed〈/a〉
    Keywords: Budgets ; Government Agencies/*organization & administration ; *Research Support as Topic ; United States ; United States Environmental Protection Agency/*organization & administration
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  • 19
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-09-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sun, M -- New York, N.Y. -- Science. 1988 Sep 16;241(4872):1427.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3420400" target="_blank"〉PubMed〈/a〉
    Keywords: *Acquired Immunodeficiency Syndrome ; Humans ; National Institutes of Health (U.S.)/*economics ; Research Support as Topic ; United States
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  • 20
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-07-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McLaren, D S -- New York, N.Y. -- Science. 1988 Jul 22;241(4864):399-400.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3393905" target="_blank"〉PubMed〈/a〉
    Keywords: Energy Metabolism ; Female ; Humans ; *Longevity ; Male ; Sex Factors
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  • 21
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-03-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sun, M -- New York, N.Y. -- Science. 1988 Mar 4;239(4844):1086.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3344426" target="_blank"〉PubMed〈/a〉
    Keywords: Legislation as Topic ; *Pesticides ; United States ; Water Pollution, Chemical/*prevention & control
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  • 22
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-01-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sun, M -- New York, N.Y. -- Science. 1988 Jan 15;239(4837):252.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3276002" target="_blank"〉PubMed〈/a〉
    Keywords: Breast Neoplasms/*etiology/prevention & control ; Clinical Trials as Topic/economics ; Dietary Fats/administration & dosage/*adverse effects ; Female ; Humans ; National Institutes of Health (U.S.) ; United States
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  • 23
    Publication Date: 1988-11-04
    Description: Studies in animals suggest that fetal neural grafts might restore lost neurological function in Parkinson's disease. In monkeys, such grafts survive for many months and reverse signs of parkinsonism, without attendant graft rejection. The successful and reliable application of a similar transplantation procedure to human patients, however, will require neural tissue obtained from human fetal cadavers, with demonstrated cellular identity, viability, and biological safety. In this report, human fetal neural tissue was successfully grafted into the brains of monkeys. Neural tissue was collected from human fetal cadavers after 9 to 12 weeks of gestation and cryopreserved in liquid nitrogen. Viability after up to 2 months of storage was demonstrated by cell culture and by transplantation into monkeys. Cryopreservation and storage of human fetal neural tissue would allow formation of a tissue bank. The stored cells could then be specifically tested to assure their cellular identity, viability, and bacteriological and virological safety before clinical use. The capacity to collect and maintain viable human fetal neural tissue would also facilitate research efforts to understand the development and function of the human brain and provide opportunities to study neurological diseases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Redmond, D E Jr -- Naftolin, F -- Collier, T J -- Leranth, C -- Robbins, R J -- Sladek, C D -- Roth, R H -- Sladek, J R Jr -- New York, N.Y. -- Science. 1988 Nov 4;242(4879):768-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychiatry, Yale University School of Medicine, New Haven, CT 06510.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2903552" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Survival ; Cells, Cultured ; Cercopithecus ; Fetus ; Freezing ; Humans ; Male ; Mesencephalon/cytology/embryology/enzymology/*transplantation ; Preservation, Biological ; Transplantation, Heterologous ; Tyrosine 3-Monooxygenase/metabolism
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  • 24
    Publication Date: 1988-08-05
    Description: The human pS2 gene is specifically expressed under estrogen transcriptional control in a subclass of estrogen receptor-containing human breast cancer cells. The pS2 gene encodes an 84-amino acid protein that is secreted after signal peptide cleavage. The distribution of pS2 protein in normal human tissues was studied with antibodies to pS2; pS2 was specifically expressed and secreted by mucosa cells of the normal stomach antrum and body of both female and male individuals. Moreover, no estrogen receptor could be detected in these cells, indicating that pS2 gene expression is estrogen-independent in the stomach. The function of the pS2 protein in the gastrointestinal tract is unknown. However, the pS2 protein is similar in sequence to a porcine pancreatic protein that has been shown to inhibit gastrointestinal motility and gastric secretion.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rio, M C -- Bellocq, J P -- Daniel, J Y -- Tomasetto, C -- Lathe, R -- Chenard, M P -- Batzenschlager, A -- Chambon, P -- New York, N.Y. -- Science. 1988 Aug 5;241(4866):705-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉CNRS et U. 184 de l'INSERM, Institut de Chimie Biologique, Faculte de Medecine, Strasbourg, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3041593" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antibodies, Monoclonal ; Breast Neoplasms/*metabolism ; Estrogens/pharmacology ; Exons ; Female ; Gastric Mucosa/*metabolism ; *Gene Expression Regulation ; Histocytochemistry ; Humans ; Immunoenzyme Techniques ; Male ; Molecular Sequence Data ; Neoplasm Proteins/*biosynthesis/genetics/secretion ; *Proteins ; RNA, Messenger/metabolism ; Receptors, Estrogen/metabolism ; Sequence Homology, Nucleic Acid ; Tissue Distribution ; Tumor Cells, Cultured ; Tumor Suppressor Proteins
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  • 25
    Publication Date: 1988-03-04
    Description: Abnormal functional activity induces long-lasting physiological alterations in neural pathways that may play a role in the development of epilepsy. The cellular mechanisms of these alterations are not well understood. One hypothesis is that abnormal activity causes structural reorganization of neural pathways and promotes epileptogenesis. This report provides morphological evidence that synchronous perforant path activation and kindling of limbic pathways induce axonal growth and synaptic reorganization in the hippocampus, in the absence of overt morphological damage. The results show a previously unrecognized anatomic plasticity associated with synchronous activity and development of epileptic seizures in neural pathways.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sutula, T -- He, X X -- Cavazos, J -- Scott, G -- K07-NS00808/NS/NINDS NIH HHS/ -- R29-NS25020/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1988 Mar 4;239(4844):1147-50.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, University of Wisconsin, Madison 53792.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2449733" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/ultrastructure ; Cytoplasmic Granules/ultrastructure ; Electric Stimulation ; Electrophysiology ; Hippocampus/physiopathology/*ultrastructure ; Histocytochemistry ; Kindling, Neurologic ; Microscopy, Electron ; Neural Pathways/ultrastructure ; Neurons/ultrastructure ; Rats ; Seizures/*pathology/physiopathology ; Staining and Labeling ; Synapses/*ultrastructure
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  • 26
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-11-18
    Description: A rat kidney messenger RNA that induces a slowly activating, voltage-dependent potassium current on its expression in Xenopus oocytes was identified by combining molecular cloning with an electrophysiological assay. The cloned complementary DNA encodes a novel membrane protein that consists of 130 amino acids with a single putative transmembrane domain. This protein differs from the known ion channel proteins but is involved in the induction of selective permeation of potassium ions by membrane depolarization.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Takumi, T -- Ohkubo, H -- Nakanishi, S -- New York, N.Y. -- Science. 1988 Nov 18;242(4881):1042-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Immunology, Kyoto University Faculty of Medicine, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3194754" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Blotting, Northern ; Cloning, Molecular ; DNA/genetics ; Electric Conductivity ; Membrane Potentials ; Membrane Proteins/*genetics ; Molecular Sequence Data ; Molecular Weight ; Potassium Channels/*physiology ; Rats ; Xenopus laevis
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  • 27
    Publication Date: 1988-07-15
    Description: Daily variation has been found in the length of the polyadenylate tail attached to vasopressin messenger RNA in the suprachiasmatic nuclei, which is the location of an endogenous circadian pacemaker in mammals. No such variation was found in the supraoptic or paraventricular nuclei. This variation in the length of the polyadenylate tail may underlie the circadian rhythm of vasopressin peptide levels in cerebrospinal fluid and is a unique example of a daily rhythm in messenger RNA structure.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Robinson, B G -- Frim, D M -- Schwartz, W J -- Majzoub, J A -- 1P50HL36568/HL/NHLBI NIH HHS/ -- R01NS24542/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1988 Jul 15;241(4863):342-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3388044" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arginine Vasopressin/*physiology ; Biological Clocks ; Circadian Rhythm ; Gene Expression Regulation ; Poly A/*physiology ; RNA, Messenger/*physiology ; Rats ; Suprachiasmatic Nucleus/*physiology
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  • 28
    Publication Date: 1988-06-17
    Description: A technique, in situ transcription, is described, in which reverse transcription of mRNAs is achieved within fixed tissue sections. An oligonucleotide complementary to proopiomelanocortin (POMC) mRNA was used as a primer for the specific synthesis of radiolabeled POMC cDNA in fixed sections of rat pituitary, thus permitting the rapid anatomical localization of POMC mRNA by autoradiography. Intermediate lobe signal intensities were sensitive to dopaminergic drugs, demonstrating that the method can be used for studies of mRNA regulation. The transcripts may also be eluted from tissue sections for a variety of uses, including the identification and cloning of autoradiographically localized cDNAs from small amounts of tissue.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tecott, L H -- Barchas, J D -- Eberwine, J H -- DA-05010/DA/NIDA NIH HHS/ -- MH-23861/MH/NIMH NIH HHS/ -- MH09099/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1988 Jun 17;240(4859):1661-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Nancy Pritzker Laboratory of Behavioral Neurochemistry, Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, CA 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2454508" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cloning, Molecular ; DNA/*biosynthesis ; Deoxycytidine/metabolism ; Electrophoresis, Polyacrylamide Gel ; Nucleic Acid Denaturation ; Nucleic Acid Hybridization ; Oligonucleotides/genetics ; Pituitary Gland/*metabolism ; Pro-Opiomelanocortin/*genetics ; RNA, Messenger/*metabolism ; RNA-Directed DNA Polymerase/metabolism ; Rats ; *Transcription, Genetic
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  • 29
    Publication Date: 1988-09-23
    Description: The imaging of phosphorescence provides a method for monitoring oxygen distribution within the vascular system of intact tissues. Isolated rat lives were perfused through the portal vein with media containing palladium coproporphyrin, which phosphoresced and was used to image the liver at various perfusion rates. Because oxygen is a powerful quenching agent for phosphors, the transition from well-perfused liver to anoxia (no flow of oxygen) resulted in large increases of phosphorescence. During stepwise restoration of oxygen flow, the phosphorescence images showed marked heterogeneous patterns of tissue reoxygenation, which indicated that there were regional inequalities in oxygen delivery.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rumsey, W L -- Vanderkooi, J M -- Wilson, D F -- GM 21524/GM/NIGMS NIH HHS/ -- GM 36393/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1988 Sep 23;241(4873):1649-51.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Biophysics, University of Pennsylvania School of Medicine, Philadelphia 19104.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3420417" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Coproporphyrins ; Liver Circulation ; *Luminescence ; Male ; Oxygen/*analysis ; Palladium ; Perfusion ; Rats ; Rats, Inbred Strains
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  • 30
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-12-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Morrison, D C -- New York, N.Y. -- Science. 1988 Dec 16;242(4885):1503-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3201237" target="_blank"〉PubMed〈/a〉
    Keywords: Animal Welfare ; Animals ; *Dolphins ; *Military Science ; *Pinnipedia ; *Seals, Earless ; United States
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  • 31
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-11-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Norman, C -- New York, N.Y. -- Science. 1988 Nov 18;242(4881):1002-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3194749" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome ; Humans ; Legislation as Topic ; Plants, Toxic ; Politics ; *Science ; Tobacco ; United States
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  • 32
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-09-02
    Description: When two different mammalian cell types are fused to generate a stable hybrid cell line, genes that are active in only one of the parents are frequently shut off, a phenomenon called extinction. In this study two distinct, complementary mechanisms for such extinction of growth hormone gene expression were identified. In hybrids formed by fusing fibroblasts to pituitary cells, pituitary-specific proteins that bind to the growth hormone promoter were absent. In addition, a negative regulatory element located near the rat growth hormone promoter was specifically activated.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tripputi, P -- Guerin, S L -- Moore, D D -- New York, N.Y. -- Science. 1988 Sep 2;241(4870):1205-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Massachusetts General Hospital, Boston.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2842865" target="_blank"〉PubMed〈/a〉
    Keywords: Acetyltransferases/genetics ; Animals ; Avian Sarcoma Viruses/genetics ; Chloramphenicol O-Acetyltransferase ; Enhancer Elements, Genetic ; Fibroblasts/metabolism ; *Gene Expression Regulation ; Growth Hormone/*genetics ; Herpesviridae/genetics ; Hybrid Cells/*metabolism ; Hypoxanthine Phosphoribosyltransferase/genetics ; L Cells (Cell Line) ; Mice ; Pituitary Gland/metabolism ; Plasmids ; Promoter Regions, Genetic ; Rats ; Thymidine Kinase/genetics ; Transfection
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  • 33
    Publication Date: 1988-12-09
    Description: Potassium channels in neurons are linked by guanine nucleotide binding (G) proteins to numerous neurotransmitter receptors. The ability of Go, the predominant G protein in the brain, to stimulate potassium channels was tested in cell-free membrane patches of hippocampal pyramidal neurons. Four distinct types of potassium channels, which were otherwise quiescent, were activated by both isolated brain G0 and recombinant Go alpha. Hence brain Go can couple diverse brain potassium channels to neurotransmitter receptors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉VanDongen, A M -- Codina, J -- Olate, J -- Mattera, R -- Joho, R -- Birnbaumer, L -- Brown, A M -- DK-19318/DK/NIDDK NIH HHS/ -- HL-31154/HL/NHLBI NIH HHS/ -- HL-37044/HL/NHLBI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1988 Dec 9;242(4884):1433-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology and Molecular Biophysics, Baylor College of Medicine, Houston, TX 77030.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3144040" target="_blank"〉PubMed〈/a〉
    Keywords: Adenylyl Imidodiphosphate/pharmacology ; Animals ; Cattle ; Electric Conductivity ; GTP-Binding Proteins/*pharmacology ; Hippocampus/*physiology ; In Vitro Techniques ; Kinetics ; Macromolecular Substances ; Membrane Potentials/drug effects ; Potassium Channels/drug effects/*physiology ; Pyramidal Tracts/physiology ; Rats ; Recombinant Proteins/*pharmacology
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  • 34
    Publication Date: 1988-09-23
    Description: Antibodies directed against a conserved intracellular segment of the sodium channel alpha subunit slow the inactivation of sodium channels in rat muscle cells. Of four site-directed antibodies tested, only antibodies against the short intracellular segment between homologous transmembrane domains III and IV slowed inactivation, and their effects were blocked by the corresponding peptide antigen. No effects on the voltage dependence of sodium channel activation or of steady-state inactivation were observed, but the rate of onset of the antibody effect and the extent of slowing of inactivation were voltage-dependent. Antibody binding was more rapid at negative potentials, at which sodium channels are not inactivated; antibody-induced slowing of inactivation was greater during depolarizations to more positive membrane potentials. The peptide segment recognized by this antibody appears to participate directly in rapid sodium channel inactivation during large depolarizations and to undergo a conformational change that reduces its accessibility to antibodies as the channel inactivates.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vassilev, P M -- Scheuer, T -- Catterall, W A -- NS 15751/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1988 Sep 23;241(4873):1658-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, University of Washington, School of Medicine, Seattle 98195.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2458625" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibodies ; Cytoplasm/analysis ; In Vitro Techniques ; Ion Channels/*metabolism ; Membrane Potentials ; Molecular Sequence Data ; Peptides/*metabolism ; Rats ; Sodium/*metabolism
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  • 35
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-06-17
    Description: Unequal crossing-over within a head-to-tail tandem array of the homologous red and green visual pigment genes has been proposed to explain the observed variation in green-pigment gene number among individuals and the prevalence of red-green fusion genes among color-blind subjects. This model was tested by probing the structure of the red and green pigment loci with long-range physical mapping techniques. The loci were found to constitute a gene array with an approximately 39-kilobase repeat length. The position of the red pigment gene at the 5' edge of the array explains its lack of variation in copy number. Restriction maps of the array in four individuals who differ in gene number are consistent with a head-to-tail configuration of the genes. These results provide physical evidence in support of the model and help to explain the high incidence of color blindness in the human population.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vollrath, D -- Nathans, J -- Davis, R W -- GM21891/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1988 Jun 17;240(4859):1669-72.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Stanford University School of Medicine, CA 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2837827" target="_blank"〉PubMed〈/a〉
    Keywords: Color Vision Defects/*genetics ; Crossing Over, Genetic ; DNA/genetics ; DNA Restriction Enzymes ; Electrophoresis, Agar Gel ; Exons ; Female ; Genetic Variation ; Humans ; Male ; Nucleic Acid Hybridization ; Recombination, Genetic ; Repetitive Sequences, Nucleic Acid ; Retinal Pigments/*genetics ; *X Chromosome
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  • 36
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-06-17
    Description: Biochemical and electrophysiological studies suggest that adenosine 3',5'-monophosphate (cAMP)-dependent phosphorylation of the nicotinic acetylcholine receptor channel is functionally significant because it modifies the receptor's rate of desensitization to acetylcholine. In studies that support this conclusion researchers have used forskolin to stimulate cAMP-dependent phosphorylation in intact muscle. It is now shown that although forskolin facilitated desensitization in voltage-clamped rat muscle, this effect was not correlated with the abilities of forskolin and forskolin analogs to activate adenylate cyclase or phosphorylate the receptor. Furthermore, elevation of intracellular cAMP or addition of the catalytic subunit of A-kinase failed to alter desensitization. Therefore, in intact skeletal muscle, cAMP-dependent phosphorylation does not modulate desensitization.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wagoner, P K -- Pallotta, B S -- GM32211/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1988 Jun 17;240(4859):1655-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Pharmacology, Glaxo Research Laboratories, Chapel Hill, NC 27599.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2454507" target="_blank"〉PubMed〈/a〉
    Keywords: 1-Methyl-3-isobutylxanthine/pharmacology ; Acetylcholine/pharmacology ; Adenylyl Cyclases/metabolism ; Animals ; Bucladesine/pharmacology ; Colforsin/*pharmacology ; Cyclic AMP/analogs & derivatives/*pharmacology ; Electric Conductivity ; Enzyme Activation/drug effects ; Kinetics ; Muscles/*metabolism ; Phosphorylation ; Rats ; Receptors, Cholinergic/drug effects/*physiology ; Torpedo/metabolism
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  • 37
    Publication Date: 1988-04-15
    Description: A new type of agonist-binding subunit of rat neuronal nicotinic acetylcholine receptors (nAChRs) was identified. Rat genomic DNA and complementary DNA encoding this subunit (alpha 2) were cloned and analyzed. Complementary DNA expression studies in Xenopus oocytes revealed that the injection of messenger RNAs (mRNAs) for alpha 2 and beta 2 (a neuronal nAChR subunit) led to the generation of a functional nAChR. In contrast to the other known neuronal nAChRs, the receptor produced by the injection of alpha 2 and beta 2 mRNAs was resistant to the alpha-neurotoxin Bgt3.1. In situ hybridization histochemistry showed that alpha 2 mRNA was expressed in a small number of regions, in contrast to the wide distribution of the other known agonist-binding subunits (alpha 3 and alpha 4) mRNAs. These results demonstrate that the alpha 2 subunit differs from other known agonist-binding alpha-subunits of nAChRs in its distribution in the brain and in its pharmacology.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wada, K -- Ballivet, M -- Boulter, J -- Connolly, J -- Wada, E -- Deneris, E S -- Swanson, L W -- Heinemann, S -- Patrick, J -- New York, N.Y. -- Science. 1988 Apr 15;240(4850):330-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Salk Institute for Biological Studies, San Diego, CA 92138.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2832952" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Brain/*metabolism ; DNA Restriction Enzymes ; Female ; *Genes ; Molecular Sequence Data ; Neurons/metabolism ; Nucleotide Mapping ; Oocytes/metabolism ; Rats ; Receptors, Nicotinic/*genetics/metabolism ; Transcription, Genetic ; Xenopus laevis
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  • 38
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-09-09
    Description: The mammalian cerebral cortex is organized into columns of cells with common functional properties. During embryogenesis, cortical neurons are formed deep, near the lateral ventricles, and migrate radially to their final position. This observation led to the suggestion that the cortex consists of radial, ontogenetic units of clonally related neurons. In the experiments reported here, this hypothesis was tested by studying cell lineage in the rat cortex with a retroviral vector carrying the Escherichia coli beta-galactosidase gene, which can be easily visualized. Labeled, clonally related cortical neurons did not occur in simple columnar arrays. Instead, clonally related neurons entered several different radial columns, apparently by migrating along different radial glial fibers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Walsh, C -- Cepko, C L -- EY07331-01/EY/NEI NIH HHS/ -- R01 NS 23021-01/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1988 Sep 9;241(4871):1342-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Harvard Medical School, Boston, MA 02115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3137660" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Movement ; Cerebral Cortex/cytology/*embryology ; Clone Cells ; Neuroglia/physiology ; Rats ; Transfection ; beta-Galactosidase/metabolism
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  • 39
    Publication Date: 1988-12-09
    Description: Leber's hereditary optic neuropathy is a maternally inherited disease resulting in optic nerve degeneration and cardiac dysrhythmia. A mitochondrial DNA replacement mutation was identified that correlated with this disease in multiple families. This mutation converted a highly conserved arginine to a histidine at codon 340 in the NADH dehydrogenase subunit 4 gene and eliminated an Sfa NI site, thus providing a simple diagnostic test. This finding demonstrated that a nucleotide change in a mitochondrial DNA energy production gene can result in a neurological disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wallace, D C -- Singh, G -- Lott, M T -- Hodge, J A -- Schurr, T G -- Lezza, A M -- Elsas, L J 2nd -- Nikoskelainen, E K -- NS21328/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1988 Dec 9;242(4884):1427-30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Emory University School of Medicine, Atlanta, GA 30322.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3201231" target="_blank"〉PubMed〈/a〉
    Keywords: African Continental Ancestry Group ; Animals ; Arginine ; Cytochrome Reductases/*genetics ; DNA, Mitochondrial/*genetics ; European Continental Ancestry Group ; Female ; *Genes ; Georgia ; Hereditary Sensory and Motor Neuropathy/*genetics ; Histidine ; Humans ; Macromolecular Substances ; Male ; *Mutation ; NADH Dehydrogenase/*genetics ; Optic Atrophies, Hereditary/*genetics ; Pedigree ; Reference Values
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  • 40
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-04-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Walsh, J -- New York, N.Y. -- Science. 1988 Apr 15;240(4850):271-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3353721" target="_blank"〉PubMed〈/a〉
    Keywords: Education/*economics ; *Government Agencies ; United States
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  • 41
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-04-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Walsh, J M -- New York, N.Y. -- Science. 1988 Apr 15;240(4850):268.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3353719" target="_blank"〉PubMed〈/a〉
    Keywords: Employment ; *Health Policy ; Humans ; National Institutes of Health (U.S.) ; Substance-Related Disorders/*prevention & control ; United States
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  • 42
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-09-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1989 Sep 8;245(4922):1031.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2772652" target="_blank"〉PubMed〈/a〉
    Keywords: 2,4,5-Trichlorophenoxyacetic Acid/*adverse effects ; 2,4-Dichlorophenoxyacetic Acid/*adverse effects ; Dioxins/*adverse effects ; Humans ; Tetrachlorodibenzodioxin/*adverse effects ; United States ; *Veterans ; Vietnam
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  • 43
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-06-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1989 Jun 16;244(4910):1243.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2734603" target="_blank"〉PubMed〈/a〉
    Keywords: *Biomedical Research ; Data Collection/standards ; *Ethics, Professional ; Federal Government ; *Government Regulation ; *Science ; United States
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  • 44
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-05-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1989 May 26;244(4907):919.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11644372" target="_blank"〉PubMed〈/a〉
    Keywords: *DNA, Recombinant ; Ecology ; *Industry ; Jurisprudence ; Microbiology ; *Patents as Topic ; *Risk ; *Risk Assessment ; Supreme Court Decisions ; United States
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  • 45
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-04-28
    Description: The first sentence of reference 15 in the report "Single-chain antigen-binding proteins" by Robert E. Bird et al. (21 Oct., p. 423) should have read, 'The majority of experiments have produced Ka's within a factor of 2 of these values; therefore, log K(a)'s for the 4-4-20 I, Fab, and 4-4-20/20' single-chain protein are 10.2, 9.9, and 9.0+/-0.3, respectively.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1989 Apr 28;244(4903):409.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2717931" target="_blank"〉PubMed〈/a〉
    Keywords: Animal Testing Alternatives ; *Animal Welfare ; Animals ; *Animals, Laboratory ; Ethics ; Societies ; United States
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  • 46
    Publication Date: 1988-06-24
    Description: The rate of lateral diffusion of integral membrane proteins is constrained in cells, but the constraining factors for most membrane proteins have not been defined. PH-20, a sperm surface protein involved in sperm-egg adhesion, was shown to be anchored in the plasma membrane by attachment to the lipid phosphatidylinositol and to have a diffusion rate that is highly restricted on testicular sperm, being more than a thousand times slower than lipid diffusion. These results support the hypothesis that lateral mobility of a membrane protein can be regulated exclusively by interactions of its ectodomain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Phelps, B M -- Primakoff, P -- Koppel, D E -- Low, M G -- Myles, D G -- GM-23585/GM/NIGMS NIH HHS/ -- HD-16580/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1988 Jun 24;240(4860):1780-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, University of Connecticut Health Center, Farmington 06032.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3381102" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, Surface ; Cell Adhesion Molecules ; Cell Compartmentation ; Cell Membrane/physiology ; Diffusion ; Guinea Pigs ; Male ; *Membrane Fluidity ; Membrane Proteins/*physiology ; Phosphatidylinositols/*physiology ; Sperm Maturation ; Spermatozoa/*physiology ; Testis/physiology
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  • 47
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-11-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Atkinson, R C -- New York, N.Y. -- Science. 1989 Nov 10;246(4931):733.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2814490" target="_blank"〉PubMed〈/a〉
    Keywords: Library Services/*economics ; *National Library of Medicine (U.S.) ; United States
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  • 48
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-12-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1989 Dec 1;246(4934):1115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2587998" target="_blank"〉PubMed〈/a〉
    Keywords: *Biology ; *Research Support as Topic ; United States
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  • 49
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-06-30
    Description: Hibernating arctic ground squirrels, Spermophilus parryii, were able to adopt and spontaneously arouse from core body temperatures as low as -2.9 degrees C without freezing. Abdominal body temperatures of ground squirrels hibernating in outdoor burrows were recorded with temperature-sensitive radiotransmitter implants. Body temperatures and soil temperatures at hibernaculum depth reached average minima during February of -1.9 degrees and -6 degrees C, respectively. Laboratory-housed ground squirrels hibernating in ambient temperatures of -4.3 degrees C maintained above 0 degree C thoracic temperatures but decreased colonic temperatures to as low as -1.3 degrees C. Plasma sampled from animals with below 0 degree C body temperatures had normal solute concentrations and showed no evidence of containing antifreeze molecules.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barnes, B M -- HD 23383/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1989 Jun 30;244(4912):1593-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks 99775-0180.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2740905" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antifreeze Proteins ; Arctic Regions ; Arousal ; *Body Temperature ; Body Temperature Regulation ; Female ; *Freezing ; Glycoproteins/analysis ; *Hibernation ; Male ; Sciuridae/*physiology
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  • 50
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-01-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barnes, D M -- New York, N.Y. -- Science. 1989 Jan 6;243(4887):29-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2911718" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Humans ; *Legislation, Drug ; *Neurotoxins/toxicity ; United States ; United States Food and Drug Administration
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  • 51
    Publication Date: 1988-04-29
    Description: Screening for human T-lymphotropic virus type I (HTLV-I) antibodies was performed on sera from 39,898 blood donors at eight blood centers in geographically distinct areas of the United States. Ten donors (0.025 percent) showed evidence of HTLV-I seropositivity by enzyme immunoassays; this was confirmed by protein immunoblot and radioimmunoprecipitation. Seroprevalence rates ranged from 0 to 0.10 percent at the locations sampled, with HTLV-I antibodies found predominantly in donors from the southeastern and southwestern United States. Matched case-control interviews and laboratory studies were performed on five seropositive women and two seropositive men who participated in an identity-linked collection of sera from a subset of 33,893 donors at six of the eight blood centers. Four of the women and both men are black; one woman is Caucasian. Four of the seven seropositive individuals admitted to prior intravenous drug abuse or sexual contact with an intravenous drug user. Sexual contact with native inhabitants of an HTLV-I endemic area was the only identified risk factor for one male. The distribution of HTLV-I antibodies in this U.S. blood donor sample corroborates the previously reported epidemiology of this agent and suggests that additional donor screening measures, including the testing of donated blood for HTLV-I markers, may be necessary to prevent the spread of HTLV-I to transfusion recipients.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Williams, A E -- Fang, C T -- Slamon, D J -- Poiesz, B J -- Sandler, S G -- Darr, W F 2nd -- Shulman, G -- McGowan, E I -- Douglas, D K -- Bowman, R J -- New York, N.Y. -- Science. 1988 Apr 29;240(4852):643-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉American Red Cross Jerome H. Holland Laboratory, Rockville, MD 20855.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2896386" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Antibodies, Viral/*analysis ; *Blood Donors ; Deltaretrovirus/*immunology/isolation & purification ; Deltaretrovirus Infections/diagnosis/*epidemiology/transmission ; Female ; Humans ; Immunoenzyme Techniques ; Immunosorbent Techniques ; Japan ; Male ; Middle Aged ; Risk Factors ; Sexual Partners ; Substance-Related Disorders ; United States
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  • 52
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-10-07
    Description: Behavioral studies have suggested that muscarinic cholinergic systems have an important role in learning and memory. A muscarinic cholinergic agonist is now shown to affect synaptic plasticity in the CA3 region of the hippocampal slice. Long-term potentiation (LTP) of the mossy fiber-CA3 synapse was blocked by muscarine. Low concentrations of muscarine (1 micromolar) had little effect on low-frequency (0.2 hertz) synaptic stimulation but did significantly reduce the magnitude and probability of induction of LTP. Experiments under voltage clamp showed that muscarine blocked the increase in excitatory synaptic conductance normally associated with LTP at this synapse. These results suggest a possible role for cholinergic systems in synaptic plasticity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Williams, S -- Johnston, D -- HL31164/HL/NHLBI NIH HHS/ -- NS11535/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1988 Oct 7;242(4875):84-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, Baylor College of Medicine, Houston, TX 77030.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2845578" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Electric Conductivity ; Electric Stimulation ; Evoked Potentials/drug effects ; Hippocampus/drug effects/*physiology ; In Vitro Techniques ; Muscarine/*pharmacology ; Neurons/drug effects/*physiology ; Pyramidal Tracts/drug effects/*physiology ; Rats ; Reference Values ; Synapses/physiology ; Synaptic Transmission/drug effects
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  • 53
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-02-24
    Description: Cruciform DNA, a non-double helix form of DNA, can be generated as an intermediate in genetic recombination as well as from palindromic sequences under the effect of supercoiling. Eukaryotic cells are equipped with a DNA-binding protein that selectively recognizes cruciform DNA. Biochemical and immunological data showed that this protein is HMG1, an evolutionarily conserved, essential, and abundant component of the nucleus. The interaction with a ubiquitous protein points to a critical role for cruciform DNA conformations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bianchi, M E -- Beltrame, M -- Paonessa, G -- New York, N.Y. -- Science. 1989 Feb 24;243(4894 Pt 1):1056-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉European Molecular Biology Laboratory, Heidleberg, Federal Republic of Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2922595" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cloning, Molecular ; DNA/genetics/*metabolism ; Electrophoresis, Polyacrylamide Gel ; High Mobility Group Proteins/genetics/isolation & purification/*metabolism ; Immunoassay ; Immunoblotting ; Liver/analysis ; Molecular Sequence Data ; Molecular Weight ; *Nucleic Acid Conformation ; Peptide Fragments/genetics/isolation & purification ; Protein Biosynthesis ; Rats ; Transcription, Genetic
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  • 54
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-11-24
    Description: Although most animals reproduce sexually, a number of all-female groups exist. Triploid hybrid salamanders appear to maintain themselves by using a male's sperm to activate their eggs, after which the sperm nucleus is eliminated (gynogenesis). The incidence of sperm nuclear incorporation in eggs of these salamanders depends on temperature. Triploid offspring derived gynogenetically are more frequent at lower temperature, whereas tetraploid offspring derived sexually are far more frequent at higher temperatures. Temperature-dependent variability in sperm nuclear incorporation helps explain the variability in reproductive modes reported for hybrid salamanders.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bogart, J P -- Elinson, R P -- Licht, L E -- New York, N.Y. -- Science. 1989 Nov 24;246(4933):1032-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Zoology, College of Biological Science, University of Guelph, Ontario, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2587986" target="_blank"〉PubMed〈/a〉
    Keywords: Ambystoma/genetics/*physiology ; Animals ; Crosses, Genetic ; Female ; Karyotyping ; Larva ; Male ; *Polyploidy ; Sperm-Ovum Interactions ; Spermatozoa/*physiology ; Temperature
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  • 55
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-01-20
    Description: Nerve growth factor (NGF) interacts with both high affinity (Kd = 10(-10)-10(-11)M) and low affinity (Kd = 10(-8)-10(-9)M) receptors; the binding of NGF to the high affinity receptor is correlated with biological actions of NGF. To determine whether a single NGF binding protein is common to both forms of the receptor, a full-length receptor cDNA was introduced in the NR18 cell line, an NGF receptor-deficient variant of the PC12 pheochromocytoma cell line. The transformant displayed (i) both high and low affinity receptors detectable by receptor binding; (ii) an affinity cross-linking pattern with 125I-labeled NGF similar to that of the parent PC12 cell line; and (iii) biological responsiveness to NGF as assayed by induction of c-fos transcription. These findings support the hypothesis that a single binding protein is common to both forms of the NGF receptor and suggest that an additional protein is required to produce the high affinity form of the NGF receptor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hempstead, B L -- Schleifer, L S -- Chao, M V -- HD23315/HD/NICHD NIH HHS/ -- NS-21072/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1989 Jan 20;243(4889):373-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Hematology/Oncology, Cornell University Medical College, New York, NY 10021.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2536190" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blotting, Northern ; Cloning, Molecular ; Gene Expression Regulation ; Nerve Growth Factors/pharmacology ; Pheochromocytoma ; Proto-Oncogene Proteins/genetics ; Proto-Oncogene Proteins c-fos ; Rats ; Receptors, Cell Surface/*genetics/metabolism ; Receptors, Nerve Growth Factor ; Transformation, Genetic ; Tumor Cells, Cultured
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  • 56
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-11-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1989 Nov 17;246(4932):878-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2814507" target="_blank"〉PubMed〈/a〉
    Keywords: Alcoholism/*prevention & control/rehabilitation ; Humans ; International Cooperation ; Ussr ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 57
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-08-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1989 Aug 11;245(4918):593.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2762812" target="_blank"〉PubMed〈/a〉
    Keywords: *Biomedical Research ; Crime/*legislation & jurisprudence ; Federal Government ; Fraud/*legislation & jurisprudence ; *Government Regulation ; Research Support as Topic ; United States ; *United States Dept. of Health and Human Services
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  • 58
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-02-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1989 Feb 24;243(4894 Pt 1):1000.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2646708" target="_blank"〉PubMed〈/a〉
    Keywords: *Financial Management ; *Fund Raising ; History, 20th Century ; National Institutes of Health (U.S.) ; *Research Personnel ; *Research Support as Topic ; United States
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  • 59
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-06-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1989 Jun 23;244(4911):1437.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2499929" target="_blank"〉PubMed〈/a〉
    Keywords: *Animal Welfare ; Animals ; Euthanasia/*veterinary ; *Haplorhini ; *Legislation, Veterinary ; National Institutes of Health (U.S.) ; United States
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  • 60
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-03-24
    Description: The N-methyl-D-aspartate (NMDA) class of excitatory amino acid receptors regulates the strength and stability of excitatory synapses and appears to play a major role in excitotoxic neuronal death associated with stroke and epilepsy. The conductance increase gated by NMDA is potentiated by the amino acid glycine, which acts at an allosteric site tightly coupled to the NMDA receptor. Indole-2-carboxylic acid (I2CA) specifically and competitively inhibits the potentiation by glycine of NMDA-gated current. In solutions containing low levels of glycine, I2CA completely blocks the response to NMDA, suggesting that NMDA alone is not sufficient for channel activation. I2CA will be useful for defining the interaction of glycine with NMDA receptors and for determining the in vivo role of glycine in excitotoxicity and synapse stabilization.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huettner, J E -- HL-35034/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1989 Mar 24;243(4898):1611-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, Harvard Medical School, Boston, MA 02115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2467381" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aspartic Acid/*analogs & derivatives/physiology ; Cells, Cultured ; Electric Conductivity ; Glycine/*antagonists & inhibitors ; In Vitro Techniques ; Indoles/*pharmacology ; Ion Channels/drug effects ; N-Methylaspartate ; Neural Inhibition ; Rats ; Receptors, N-Methyl-D-Aspartate ; Receptors, Neurotransmitter/*drug effects ; Structure-Activity Relationship
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  • 61
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-05-12
    Description: Augmented by public programs such as Social Security and Medicare, incomes of the elderly in the United States have grown more rapidly during the last several decades than have the incomes of other groups, so that on average the elderly are at least as well off as the nonelderly. Not all elderly, however, have done as well: widows, in particular, have high poverty rates. The economic prospects of the elderly during the next few decades are good because of the large work force from the baby-boom cohort. In the distant future a large fraction of the population will be elderly, which will probably lead to a deterioration in their economic status. Today, the main problems center on the distribution of economic resources among the elderly and on uncertainties such as costs of medical care.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hurd, M D -- New York, N.Y. -- Science. 1989 May 12;244(4905):659-64.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Economics, State University of New York, Stony Brook 11794.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2655090" target="_blank"〉PubMed〈/a〉
    Keywords: *Aged ; *Economics ; Humans ; *Income ; Medicaid ; Medicare ; Poverty ; Social Security ; United States
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  • 62
    Publication Date: 1989-06-16
    Description: Secretory chloride channels can be activated by adenosine 3',5'-monophosphate (cAMP)-dependent protein kinase in normal airway epithelial cells but not in cells from individuals with cystic fibrosis (CF). In excised, inside-out patches of apical membrane of normal human airway cells and airway cells from three patients with CF, the chloride channels exhibited a characteristic outwardly rectifying current-voltage relation and depolarization-induced activation. Channels from normal tissues were activated by both cAMP-dependent protein kinase and protein kinase C. However, chloride channels from CF patients could not be activated by either kinase. Thus, gating of normal epithelial chloride channels is regulated by both cAMP-dependent protein kinase and protein kinase C, and regulation by both kinases is defective in CF.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hwang, T C -- Lu, L -- Zeitlin, P L -- Gruenert, D C -- Huganir, R -- Guggino, W B -- 1-K08-HL02188/HL/NHLBI NIH HHS/ -- R01-DK 39619/DK/NIDDK NIH HHS/ -- R01-HL 40178/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1989 Jun 16;244(4910):1351-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, Johns Hopkins University, Baltimore, MD 21205.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2472005" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Chloride Channels ; Chlorides/*physiology ; Cystic Fibrosis/*physiopathology ; Electrophysiology ; Fetus ; Humans ; In Vitro Techniques ; Ion Channels/*physiology ; Membrane Proteins/*physiology ; Protein Kinase C/*physiology ; Protein Kinases/*physiology ; Respiratory System/cytology/physiopathology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 63
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-09-29
    Description: The CA1 pyramidal neurons in the hippocampus contain a high density of adrenal corticosteroid receptors. By intracellular recording, CA1 neurons in slices from adrenalectomized rats have been found to display a markedly reduced afterhyperpolarization (that is, the hyperpolarizing phase after a brief depolarizing current pulse) when compared with their sham controls. No differences were found for other tested membrane properties. Brief exposure of hippocampal slices from adrenalectomized rats to glucocorticoid agonists, 30 to 90 minutes before recording, greatly enhanced the afterhyperpolarization. In addition, glucocorticoids attenuated the norepinephrine-induced blockade of action potential accommodation in CA1 neurons. The findings indicate that glucocorticoids can reduce transmitter-evoked excitability in the hippocampus, presumably via a receptor-mediated genomic action.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Joels, M -- de Kloet, E R -- New York, N.Y. -- Science. 1989 Sep 29;245(4925):1502-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Molecular Neurobiology, University of Utrecht, The Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2781292" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials/drug effects ; Adrenalectomy ; Animals ; Glucocorticoids/*pharmacology ; Hippocampus/cytology/*drug effects ; In Vitro Techniques ; Membrane Potentials/drug effects ; Neurons/cytology/drug effects ; Norepinephrine/*pharmacology ; Rats
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  • 64
    Publication Date: 1989-10-06
    Description: The tyrosine kinase pp60v-src, encoded by the v-src oncogene, seems to regulate phosphatidylinositol metabolism. The effect of pp60v-src on control points in inositol phosphate production was examined by measuring the amounts of inositol polyphosphates in Rat-1 cells expressing wild-type or mutant forms of the protein. Expression of v-src-resulted in a five- to sevenfold elevation in the steady-state amount of an isomer of inositol tetrakisphosphate, whereas the concentrations of inositol trisphosphates or other inositol tetrakisphosphates were not affected. The activity of a key enzyme in the formation of inositol tetrakisphosphates, inositol (1,4,5)-trisphosphate 3-kinase, was increased six- to eightfold in cytosolic extracts prepared from the v-src-transformed cells, suggesting that this enzyme may be one target for the pp60v-src kinase and that it may participate in the synthesis of novel, higher order inositol phosphates.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Johnson, R M -- Wasilenko, W J -- Mattingly, R R -- Weber, M J -- Garrison, J C -- CA-39076/CA/NCI NIH HHS/ -- CA-40042/CA/NCI NIH HHS/ -- DK-19952/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1989 Oct 6;246(4926):121-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, University of Virginia School of Medicine, Charlottesville 22908.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2506643" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line, Transformed ; Fibroblasts/metabolism ; Inositol Phosphates/*metabolism ; Isomerism ; Oncogene Protein pp60(v-src) ; Protein-Tyrosine Kinases/metabolism ; Rats ; Retroviridae Proteins/*physiology ; Sugar Phosphates/*metabolism
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  • 65
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-05-19
    Description: Biochemical and electrophysiological studies suggest that odorants induce responses in olfactory sensory neurons via an adenylate cyclase cascade mediated by a G protein. An olfactory-specific guanosine triphosphate (GTP)-binding protein alpha subunit has now been characterized and evidence is presented suggesting that this G protein, termed Golf, mediates olfaction. Messenger RNA that encodes Golf alpha is expressed in olfactory neuroephithelium but not in six other tissues tested. Moreover, within the olfactory epithelium, Golf alpha appears to be expressed only by the sensory neurons. Specific antisera were used to localize Golf alpha protein to the sensory apparatus of the receptor neurons. Golf alpha shares extensive amino acid identity (88 percent) with the stimulatory G protein, Gs alpha. The expression of Golf alpha in S49 cyc- kin- cells, a line deficient in endogenous stimulatory G proteins, demonstrates its capacity to stimulate adenylate cyclase in a heterologous system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jones, D T -- Reed, R R -- New York, N.Y. -- Science. 1989 May 19;244(4906):790-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Molecular Biology and Genetic Johns Hopkins School of Medicine, Baltimore, MD 21205.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2499043" target="_blank"〉PubMed〈/a〉
    Keywords: Adenylyl Cyclases/metabolism ; Amino Acid Sequence ; Animals ; Base Sequence ; Cloning, Molecular ; GTP-Binding Proteins/analysis/genetics/*physiology ; Gene Expression Regulation ; Immunoblotting ; Immunohistochemistry ; Molecular Sequence Data ; Neurons, Afferent/analysis/*physiology ; *Odors ; Olfactory Bulb/physiology ; Olfactory Mucosa/analysis/*innervation ; RNA, Messenger/analysis/genetics ; Rats ; Sequence Homology, Nucleic Acid ; *Signal Transduction ; Tissue Distribution ; Transfection
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  • 66
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-01-20
    Description: DNA and nuclear proteins were transferred into cells simultaneously at more than 95% efficiency by means of vesicle complexes. The DNA was rapidly transported into the nuclei of cultured cells, and its expression reached a maximum within 6 to 8 hours after its introduction. Moreover, when the plasmid DNA and nuclear protein were cointroduced into nondividing cells in rat liver by injection into the portal veins of adult rats, the plasmid DNA was carried into liver cell nuclei efficiently by nuclear protein. The expression of the DNA in adult rat liver, on introduction of the DNA with nuclear protein, was more than five times as great as with nonnuclear protein.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaneda, Y -- Iwai, K -- Uchida, T -- New York, N.Y. -- Science. 1989 Jan 20;243(4889):375-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Molecular and Cellular Biology, Osaka University, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2911748" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blotting, Northern ; Cell Compartmentation ; Cell Nucleus/metabolism ; Cells, Cultured ; DNA/*metabolism/pharmacokinetics ; High Mobility Group Proteins/*metabolism ; Liver/*metabolism ; Mice ; Rats ; Transformation, Genetic
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  • 67
    Publication Date: 1989-03-31
    Description: To survive, primates must detect danger in time to activate appropriate defensive behaviors. In this study, the defensive behaviors of infant rhesus monkeys exposed to humans were characterized. It was observed that the direction of the human's gaze is a potent cue for the infant. Infants separated from their mothers were active and emitted frequent distress vocalizations. When a human entered the room but did not look at the infant, it became silent and froze in one position. If the human stared at the infant, it responded with aggressive barking. Alterations of the opiate system affected the frequency of the infant's distress calls without affecting barking and freezing, whereas benzodiazepine administration selectively reduced barking and freezing. This suggests that opiate and benzodiazepine systems regulate specific defensive behaviors in primates and that these systems work together to mediate behavioral responses important for survival.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kalin, N H -- Shelton, S E -- DK-35641/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1989 Mar 31;243(4899):1718-21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychiatry, University of Wisconsin, Madison.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2564702" target="_blank"〉PubMed〈/a〉
    Keywords: Aggression/physiology ; Animals ; Behavior, Animal/drug effects/*physiology ; Benzodiazepines/physiology ; Diazepam/pharmacology ; Endorphins/antagonists & inhibitors/physiology ; *Fear ; Female ; Macaca/*physiology ; Macaca mulatta/*physiology ; Male ; Morphine/pharmacology ; Motion ; Motor Activity/drug effects/physiology ; Naloxone/pharmacology ; Neurotransmitter Agents/*physiology ; Vision, Ocular ; Vocalization, Animal/drug effects/physiology
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  • 68
    Publication Date: 1989-09-29
    Description: Adrenal steroids bind specifically to hippocampal neurons under normal conditions and may contribute to hippocampal cell loss during aging, but little is known about the neurophysiological mechanisms by which they may change hippocampal cell functions. In the present studies, adrenal steroids have been shown to modulate a well-defined membrane conductance in hippocampal pyramidal cells. The calcium-dependent slow afterhyperpolarization is reduced in hippocampal slices from adrenalectomized rats, and it is increased after in vivo or in vitro administration of the adrenal steroid, corticosterone. Calcium action potentials are also reduced in adrenalectomized animals, indicating that the primary effect of corticosteroids may be on calcium conductance. The afterhyperpolarization component reduced by adrenalectomy is greater in aged rats than in young rats, suggesting that, with aging, there is an increased effect of corticosteroids on some calcium-mediated brain processes. Because elevated concentrations of intracellular calcium can be cytotoxic, these observations may increase the understanding of glucocorticoid involvement in brain aging as well as of the normal functions of these steroids in the brain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kerr, D S -- Campbell, L W -- Hao, S Y -- Landfield, P W -- AG04542/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 1989 Sep 29;245(4925):1505-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology and Pharmacology, Bowman Gray School of Medicine, Winston-Salem, NC 27103.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2781293" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials/drug effects ; Adrenal Cortex Hormones/*pharmacology ; Adrenalectomy ; Aging/*physiology ; Animals ; Calcium/metabolism ; Hippocampus/*drug effects ; In Vitro Techniques ; Male ; Neurons/drug effects ; Rats ; Rats, Inbred F344 ; Tetrodotoxin/pharmacology
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  • 69
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-06-09
    Description: Two types of potassium-selective channels activated by intracellular arachidonic acid or phosphatidylcholine have been found in neonatal rat atrial cells. In inside-out patches, arachidonic acid and phosphatidylcholine each opened outwardly rectifying potassium-selective channels with conductances of 160 picosiemens (IK.AA) and 68 picosiemens (IK.PC), respectively. These potassium channels were not sensitive to internally applied adenosine triphosphate (ATP), magnesium, or calcium. Lowering the intracellular pH from 7.2 to 6.8 or 6.4 reversibly increased IK.AA channel activity three- or tenfold, respectively. A number of fatty acid derivatives were tested for their ability to activate IK.AA. These potassium-selective channels may help explain the increase in potassium conductance observed in ischemic cells and raise the possibility that fatty acid derivatives act as second messengers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, D -- Clapham, D E -- HL 34873/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1989 Jun 9;244(4909):1174-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, Mayo Foundation, Rochester, MN 55905.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2727703" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Newborn ; Arachidonic Acids/*pharmacology ; Atrial Function ; Heart/*physiology ; Hydrogen-Ion Concentration ; In Vitro Techniques ; Kinetics ; Membrane Potentials ; Phosphatidylcholines/*pharmacology ; Potassium Channels/drug effects/*physiology ; Rats
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  • 70
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-11-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koshland, D E Jr -- New York, N.Y. -- Science. 1989 Nov 24;246(4933):981.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2587989" target="_blank"〉PubMed〈/a〉
    Keywords: Abortion, Legal ; Female ; Humans ; National Institutes of Health (U.S.)/*organization & administration ; Politics ; Pregnancy ; United States ; United States Dept. of Health and Human Services
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  • 71
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-03-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koshland, D E Jr -- New York, N.Y. -- Science. 1989 Mar 10;243(4896):1253.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2922608" target="_blank"〉PubMed〈/a〉
    Keywords: *Animal Welfare ; Animals ; Societies ; United States ; Universities
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  • 72
    Publication Date: 1989-04-21
    Description: A specific assay has been developed for a blood-borne non-A, non-B hepatitis (NANBH) virus in which a polypeptide synthesized in recombinant yeast clones of the hepatitis C virus (HCV) is used to capture circulating viral antibodies. HCV antibodies were detected in six of seven human sera that were shown previously to transmit NANBH to chimpanzees. Assays of ten blood transfusions in the United States that resulted in chronic NANBH revealed that there was at least one positive blood donor in nine of these cases and that all ten recipients seroconverted during their illnesses. About 80 percent of chronic, post-transfusion NANBH (PT-NANBH) patients from Italy and Japan had circulating HCV antibody; a much lower frequency (15 percent) was observed in acute, resolving infections. In addition, 58 percent of NANBH patients from the United States with no identifiable source of parenteral exposure to the virus were also positive for HCV antibody. These data indicate that HCV is a major cause of NANBH throughout the world.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kuo, G -- Choo, Q L -- Alter, H J -- Gitnick, G L -- Redeker, A G -- Purcell, R H -- Miyamura, T -- Dienstag, J L -- Alter, M J -- Stevens, C E -- New York, N.Y. -- Science. 1989 Apr 21;244(4902):362-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Chiron Corporation, Emeryville, CA 94608.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2496467" target="_blank"〉PubMed〈/a〉
    Keywords: Antibodies, Viral/*analysis ; Blood Donors ; Blood Transfusion ; Hepatitis C/*immunology/transmission ; Hepatitis Viruses/*immunology ; Hepatitis, Viral, Human/*immunology ; Humans ; Italy ; Japan ; United States
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  • 73
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-03-31
    Description: C/EBP is a rat liver nuclear protein capable of sequence-specific interaction with DNA. The DNA sequences to which C/EBP binds in vitro have been implicated in the control of messenger RNA synthesis. It has therefore been predicted that C/EBP will play a role in regulating gene expression in mammalian cells. The region of the C/EBP polypeptide required for direct interaction with DNA has been identified and shown to bear amino acid sequence relatedness with the product of the myc, fos, and jun proto-oncogenes. The arrangement of these related amino acid sequences led to the prediction of a new structural motif, termed the "leucine zipper," that plays a role in facilitating sequence-specific interaction between protein and DNA. Experimental tests now provide support for the leucine zipper hypothesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Landschulz, W H -- Johnson, P F -- McKnight, S L -- New York, N.Y. -- Science. 1989 Mar 31;243(4899):1681-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Carnegie Institution of Washington, Department of Embryology, Baltimore, MD 21210.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2494700" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Binding Sites ; CCAAT-Enhancer-Binding Proteins ; Cross-Linking Reagents ; DNA/*metabolism ; Glutaral ; Leucine ; Liver/*analysis ; Macromolecular Substances ; Molecular Weight ; Mutation ; Nuclear Proteins/genetics/*metabolism ; Protein Conformation ; Rats ; Repetitive Sequences, Nucleic Acid ; Structure-Activity Relationship
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  • 74
    Publication Date: 1989-03-17
    Description: T lymphocyte chemotactic factor (TCF) was purified to homogeneity from the conditioned media of phytohemagglutinin-stimulated human blood mononuclear leukocytes by a sequence of chromatography procedures. The amino-terminal amino acid sequence of the purified TCF showed identity with neutrophil-activating protein (NAP-1). Both TCF and recombinant NAP-1 (rNAP-1) were chemotactic for neutrophils and T lymphocytes in vitro supporting the identity of TCF with NAP-1. Injection of rNAP-1 into lymphatic drainage areas of lymph nodes in Fisher rats caused accelerated emigration of only lymphocytes in high endothelial venules. Intradermal injection of rNAP-1 caused dose-dependent accumulation of neutrophils and lymphocytes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Larsen, C G -- Anderson, A O -- Appella, E -- Oppenheim, J J -- Matsushima, K -- New York, N.Y. -- Science. 1989 Mar 17;243(4897):1464-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Immunoregulation, National Cancer Institute, Frederick, MD 21701.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2648569" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chemotactic Factors/*isolation & purification ; *Chemotaxis, Leukocyte ; Interleukin-8 ; Peptides/*isolation & purification ; Rats ; T-Lymphocytes/*immunology
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  • 75
    Publication Date: 1989-06-09
    Description: Respondents in the 1988 General Social Survey (GSS) were asked to scan their acquaintance networks to identify all those who had been a victim of a homicide or had acquired immunodeficiency syndrome (AIDS). Estimates of the sex, race, age, and regional breakdowns for homicides in the last year and for people with AIDS were compared with official statistics. The GSS estimates for the distribution of homicide victims replicate the official statistics quite well. The GSS estimates for AIDS cases suggest that the data provided to the Centers for Disease Control may underestimate by a substantial margin the prevalence of AIDS in the white population of higher socioeconomic status, overstate the relative prevalence of the disease in the minority populations, underestimate the prevalence of the disease in the Midwest, and overstate it for the East.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Laumann, E O -- Gagnon, J H -- Michaels, S -- Michael, R T -- Coleman, J S -- N0I-HD-8-2907/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1989 Jun 9;244(4909):1186-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Sociology, University of Chicago, IL 60637.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2543079" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*epidemiology ; Centers for Disease Control and Prevention (U.S.) ; Demography ; Female ; Humans ; Male ; Population Surveillance ; United States
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  • 76
    Publication Date: 1989-05-26
    Description: Spondyloepiphyseal dysplasias (SED) are a heterogeneous group of inherited disorders characterized by disproportionate short stature and pleiotropic involvement of the skeletal and ocular systems. Evidence has suggested that SED may result from structural defects in type II collagen. To confirm the validity of this hypothesis, the structure of the "candidate" type II collagen gene (COL2A1) has been directly examined in a relatively large SED family. Coarse scanning of the gene by Southern blot hybridization identified an abnormal restriction pattern in one of the affected members of the kindred. Analysis of selected genomic fragments, amplified by the polymerase chain reaction, precisely localized the molecular defect and demonstrated that all affected family members carried the same heterozygous single-exon deletion. As a consequence of the mutation, nearly 90 percent of the assembled type II collagen homotrimers are expected to contain one or more procollagen subunits harboring an interstitial deletion of 36 amino acids in the triple helical domain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, B -- Vissing, H -- Ramirez, F -- Rogers, D -- Rimoin, D -- AR-38648/AR/NIAMS NIH HHS/ -- HD-22657/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1989 May 26;244(4907):978-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, State University of New York Health Science Center, Brooklyn 11203.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2543071" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Child, Preschool ; Chromosome Deletion ; Collagen/*genetics ; DNA Restriction Enzymes ; DNA-Directed DNA Polymerase ; Exons ; Female ; Gene Amplification ; Humans ; Macromolecular Substances ; Male ; Molecular Sequence Data ; Mutation ; Nucleic Acid Hybridization ; Osteochondrodysplasias/*genetics ; Pedigree ; Procollagen/genetics
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  • 77
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-01-20
    Description: Activin, a dimer formed by the beta subunits of inhibin, has an effect that is opposite to that of inhibin in a number of biological systems. Which cell types secrete activin in vivo is not known. TM3 cells, a Leydig-derived cell line, contained messenger RNAs that hybridized with human beta A and beta B complementary DNA probes and were similar in size to the porcine messenger RNA for the beta subunits of inhibin. No hybridization to the inhibin alpha subunit was detectable in the TM3 cells. Conditioned medium from TM3 cells and from primary cultures of rat and porcine interstitial cells stimulated the release of follicle-stimulating hormone in a pituitary cell culture assay. It is likely that, in the testis, the Leydig cells secrete activin and the Sertoli cells produce inhibin, or a combination of both.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, W -- Mason, A J -- Schwall, R -- Szonyi, E -- Mather, J P -- New York, N.Y. -- Science. 1989 Jan 20;243(4889):396-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Culture, Genentech, South San Francisco, CA 94080.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2492117" target="_blank"〉PubMed〈/a〉
    Keywords: Activins ; Animals ; Cell Line ; Follicle Stimulating Hormone/secretion ; Inhibins/*physiology/*secretion ; Leydig Cells/*physiology ; Male ; Mice ; Rats ; Sertoli Cells/physiology ; Swine ; Testis/cytology/*physiology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 78
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-03-03
    Description: In the report "Synthetic CD4 peptide derivatives that inhibit HIV infection and cytopathicity" by Jeffrey D. Lifson et al. (5 Aug., p. 712), the last seven residues of the CD4 peptide (26-50) should have been SFLTKGP rather than STLTKGP.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Langer, G A -- New York, N.Y. -- Science. 1989 Mar 3;243(4895):1126.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2922600" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Animals, Laboratory ; *Policy Making ; *Research ; United States ; *United States Dept. of Health and Human Services
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 79
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-06-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1989 Jun 30;244(4912):1543.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2740900" target="_blank"〉PubMed〈/a〉
    Keywords: *Base Sequence ; Budgets/economics ; *Chromosome Mapping ; *Chromosomes, Human ; Humans ; International Cooperation ; National Institutes of Health (U.S.)/*organization & administration ; Research Support as Topic ; United States
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  • 80
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-06-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1989 Jun 9;244(4909):1135.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2727699" target="_blank"〉PubMed〈/a〉
    Keywords: Africa ; Animals ; Animals, Wild ; *Elephants ; Industry ; United States
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  • 81
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-12-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lindberg, D A -- New York, N.Y. -- Science. 1989 Dec 22;246(4937):1547-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2688089" target="_blank"〉PubMed〈/a〉
    Keywords: *Costs and Cost Analysis ; MEDLARS/*economics ; *National Library of Medicine (U.S.) ; United States
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  • 82
    Publication Date: 1989-01-20
    Description: The patch-clamp technique was used to examine the effects of atrial natriuretic peptide (ANP) and its second messenger guanosine 3',5'-monophosphate (cGMP) on an amiloride-sensitive cation channel in the apical membrane of renal inner medullary collecting duct cells. Both ANP (10(-11) M) and dibutyryl guanosine 3',5'-monophosphate (10(-4) M) inhibited the channel in cell-attached patches, and cGMP (10(-5) M) inhibited the channel in inside-out patches. The inner medullary collecting duct is the first tissue in which ANP, via its second messenger cGMP, has been shown to regulate single ion channels. The results suggest that the natriuretic action of ANP is related in part to cGMP-mediated inhibition of electrogenic Na+ absorption by the inner medullary collecting duct.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Light, D B -- Schwiebert, E M -- Karlson, K H -- Stanton, B A -- DK-34533/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1989 Jan 20;243(4889):383-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, Dartmouth Medical School, Hanover, NH 03756.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2463673" target="_blank"〉PubMed〈/a〉
    Keywords: Aminoquinolines/pharmacology ; Animals ; Atrial Natriuretic Factor/*pharmacology ; Cell Membrane/drug effects ; Cells, Cultured ; Cyclic GMP/pharmacology ; Ion Channels/*drug effects ; Kidney Medulla/drug effects ; Kidney Tubules/*drug effects ; Kidney Tubules, Collecting/*drug effects ; Natriuresis ; Rats ; Sodium/metabolism
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  • 83
    Publication Date: 1989-05-19
    Description: T cell vaccination against experimental autoimmune disease is herein shown to be mediated in part by anti-ergotypic T cells, T cells that recognize and respond to the state of activation of other T cells. The anti-ergotypic response thus combines with the previously shown anti-idiotypic T cell response to regulate autoimmunity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lohse, A W -- Mor, F -- Karin, N -- Cohen, I R -- NS 23372/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1989 May 19;244(4906):820-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Weizmann Institute of Science, Department of Cell Biology, Rehovot, Israel.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2471264" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, Bacterial/immunology ; Autoimmune Diseases/*immunology ; Concanavalin A/pharmacology ; Encephalomyelitis, Autoimmune, Experimental/*immunology ; Hypersensitivity, Delayed ; Immunization ; Immunization, Passive ; Immunoglobulin Idiotypes/immunology ; Lymphocyte Activation ; Mycobacterium tuberculosis/immunology ; Myelin Basic Protein/immunology ; Rats ; Rats, Inbred Lew ; T-Lymphocytes/*immunology
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  • 84
    Publication Date: 1989-02-03
    Description: Although the structure of rabbit skeletal muscle dihydropyridine (DHP) receptor, deduced from cDNA sequence, indicates that this protein is the channel-forming subunit of voltage-dependent calcium channel (VDCC), no functional proof for this prediction has been presented. Two DNA oligonucleotides complementary to DHP-receptor RNA sequences coding for putative membrane-spanning regions of the DHP receptor specifically suppress the expression of the DHP-sensitive VDCC from rabbit and rat heart in Xenopus oocytes. However, these oligonucleotides do not suppress the expression of the DHP-insensitive VDCC and of voltage-dependent sodium and potassium channels. Thus, the gene for DHP receptor of rabbit skeletal muscle is closely related, or identical to, a gene expressed in heart that encodes a component of the DHP-sensitive VDCC. The DHP-sensitive and DHP-insensitive VDCCs are distinct molecular entities.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lotan, I -- Goelet, P -- Gigi, A -- Dascal, N -- New York, N.Y. -- Science. 1989 Feb 3;243(4891):666-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Physiology and Pharmacology, Sackler School of Medicine, Tel Aviv University, Ramat Aviv, Israel.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2464853" target="_blank"〉PubMed〈/a〉
    Keywords: 3-Pyridinecarboxylic acid, ; 1,4-dihydro-2,6-dimethyl-5-nitro-4-(2-(trifluoromethyl)phenyl)-, Methyl ; ester/pharmacology ; Animals ; Calcium Channels/drug effects/*physiology ; DNA/*genetics ; DNA Probes ; Electric Conductivity ; *Gene Expression Regulation ; Muscles/analysis ; Myocardium/analysis ; Nucleic Acid Hybridization ; Oocytes/physiology ; RNA/genetics ; RNA, Messenger/genetics ; Rabbits ; Rats ; Receptors, Nicotinic/*genetics ; Xenopus
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  • 85
    Publication Date: 1989-08-04
    Description: Complementary DNA clones, encoding the LH-hCG (luteinizing hormone-human choriogonadotropic hormone) receptor were isolated by screening a lambda gt11 library with monoclonal antibodies. The primary structure of the protein was deduced from the DNA sequence analysis; the protein contains 696 amino acids with a putative signal peptide of 27 amino acids. Hydropathy analysis suggests the existence of seven transmembrane domains that show homology with the corresponding regions of other G protein-coupled receptors. Three other types of clones corresponding to shorter proteins were observed, in which the putative transmembrane domain was absent. These probably arose through alternative splicing. RNA blot analysis showed similar patterns in testis and ovary with a major RNA of 4700 nucleotides and several minor species. The messenger RNA was expressed in COS-7 cells, yielding a protein that bound hCG with the same affinity as the testicular receptor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Loosfelt, H -- Misrahi, M -- Atger, M -- Salesse, R -- Vu Hai-Luu Thi, M T -- Jolivet, A -- Guiochon-Mantel, A -- Sar, S -- Jallal, B -- Garnier, J -- New York, N.Y. -- Science. 1989 Aug 4;245(4917):525-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut National de la Sante et de la Recherche Medicale Unite 135, Hopital de Bicetre, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2502844" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cell Membrane/*metabolism ; *Cloning, Molecular ; DNA/*genetics ; Female ; GTP-Binding Proteins/metabolism ; Male ; Molecular Sequence Data ; Mutation ; Nucleic Acid Hybridization ; Ovary/analysis ; Protein Sorting Signals/genetics ; RNA, Messenger/analysis/genetics ; Receptors, LH/*genetics/metabolism ; Sequence Homology, Nucleic Acid ; Swine ; Testis/analysis ; Tissue Distribution
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  • 86
    Publication Date: 1989-01-06
    Description: Antigen (egg albumin) injections, which stimulate mucosal mast cells to secrete mediators, were paired with an audiovisual cue. After reexposure to the audiovisual cue, a mediator (rat mast cell protease II) was measured with a sensitive and specific assay. Animals reexposed to only the audiovisual cue released a quantity of protease not significantly different from animals reexposed to both the cue and the antigen; these groups released significantly more protease than animals that had received the cue and antigen in a noncontingent manner. The results support a role for the central nervous system as a functional effector of mast cell function in the allergic state.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉MacQueen, G -- Marshall, J -- Perdue, M -- Siegel, S -- Bienenstock, J -- New York, N.Y. -- Science. 1989 Jan 6;243(4887):83-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychology, McMaster University, Hamilton, Ontario, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2911721" target="_blank"〉PubMed〈/a〉
    Keywords: Acoustic Stimulation ; Animals ; *Conditioning, Classical ; Mast Cells/*enzymology/immunology ; Ovalbumin ; Photic Stimulation ; Rats ; Reference Values ; Serine Endopeptidases/*secretion
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  • 87
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-06-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Glantz, S A -- New York, N.Y. -- Science. 1989 Jun 30;244(4912):1531.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2740895" target="_blank"〉PubMed〈/a〉
    Keywords: *Animal Experimentation ; *Animal Welfare ; Animals ; *Animals, Laboratory ; *Economics ; Federal Government ; *Government Regulation ; *Legislation, Veterinary ; National Institutes of Health (U.S.) ; United States
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  • 88
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-11-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Norman, C -- New York, N.Y. -- Science. 1989 Nov 24;246(4933):990.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2587994" target="_blank"〉PubMed〈/a〉
    Keywords: Politics ; *Research Support as Topic ; United States ; Universities/*economics
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  • 89
    Publication Date: 1989-05-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gowda, D C -- Margolis, R K -- Frangione, B -- Ghiso, J -- Larrondo-Lillo, M -- Margolis, R U -- New York, N.Y. -- Science. 1989 May 19;244(4906):826-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2499044" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenal Gland Neoplasms ; *Amyloid ; Amyloid beta-Protein Precursor ; Animals ; Heparin/*analogs & derivatives ; Pheochromocytoma ; *Protein Precursors ; *Proteoglycans ; Rats ; Tumor Cells, Cultured
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  • 90
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-08-25
    Description: Long-term potentiation (LTP) of synaptic transmission is a widely studied cellular example of synaptic plasticity. However, the identity, localization, and interplay among the biochemical signals underlying LTP remain unclear. Intracellular microelectrodes have been used to record synaptic potentials and deliver protein kinase inhibitors to postsynaptic CA1 pyramidal cells. Induction of LTP is blocked by intracellular delivery of H-7, a general protein kinase inhibitor, or PKC(19-31), a selective protein kinase C (PKC) inhibitor, or CaMKII(273-302), a selective inhibitor of the multifunctional Ca2+-calmodulin-dependent protein kinase (CaMKII). After its establishment, LTP appears unresponsive to postsynaptic H-7, although it remains sensitive to externally applied H-7. Thus both postsynaptic PKC and CaMKII are required for the induction of LTP and a presynaptic protein kinase appears to be necessary for the expression of LTP.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Malinow, R -- Schulman, H -- Tsien, R W -- GM30179/GM/NIGMS NIH HHS/ -- NS24067/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1989 Aug 25;245(4920):862-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cellular Physiology, Beckman Center, Stanford University School of Medicine 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2549638" target="_blank"〉PubMed〈/a〉
    Keywords: 1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine ; Animals ; Calcium-Calmodulin-Dependent Protein Kinases ; In Vitro Techniques ; Isoquinolines/pharmacology ; Piperazines/pharmacology ; Protein Kinase C/antagonists & inhibitors/*physiology ; Protein Kinase Inhibitors ; Protein Kinases/*physiology ; Rats ; Receptors, AMPA ; Receptors, Kainic Acid ; Receptors, Neurotransmitter/physiology ; Synapses/*physiology ; *Synaptic Transmission/drug effects
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  • 91
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-05-26
    Description: High-frequency (tetanic) stimulation of presynaptic nerve tracts in the hippocampal region of the brain can lead to long-term synaptic potentiation (LTP). Pertussis toxin prevented the development of tetanus-induced LTP in the stratum radiatum-CA1 synaptic system of rat hippocampal slices, indicating that a guanosine triphosphate-binding protein (G protein) may be required for the initiation of LTP. This G protein may be located at a site distinct from the postsynaptic neuron (that is, in presynaptic terminals or glial cells) since maximal activation of CA1 neuronal G proteins by intracellular injection of guanosine-5'-O-(3-thiotriphosphate), a nonhydrolyzable analog of guanosine 5'-triphosphate, did not occlude LTP.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goh, J W -- Pennefather, P S -- New York, N.Y. -- Science. 1989 May 26;244(4907):980-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Faculty of Pharmacy, University of Toronto, Ontario, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2543072" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Baclofen/pharmacology ; Electric Conductivity ; Enzyme Activation ; Evoked Potentials/drug effects ; GTP-Binding Proteins/*physiology ; Guanosine 5'-O-(3-Thiotriphosphate) ; Guanosine Triphosphate/analogs & derivatives/pharmacology ; Hippocampus/drug effects/*physiology ; Injections, Intraventricular ; Male ; Membrane Potentials ; Neurons/drug effects/physiology ; *Pertussis Toxin ; Protein Kinase C/metabolism ; Rats ; Rats, Inbred Strains ; Receptors, GABA-A/physiology ; Synapses/drug effects/*physiology ; Thionucleotides/pharmacology ; Virulence Factors, Bordetella/*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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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-01-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1989 Jan 6;243(4887):22-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2911716" target="_blank"〉PubMed〈/a〉
    Keywords: *Computer Systems ; Government Agencies/*organization & administration ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-03-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1989 Mar 10;243(4896):1287.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2646714" target="_blank"〉PubMed〈/a〉
    Keywords: Government Agencies/*history ; History, 20th Century ; Humans ; *Street Drugs ; Substance-Related Disorders/*prevention & control ; United States
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    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-01-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1989 Jan 13;243(4888):161-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2911728" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cattle ; *Estradiol/adverse effects ; Europe ; *European Union ; Humans ; *Meat ; United States
    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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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-12-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1989 Dec 15;246(4936):1376-81.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2595359" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/transmission ; *Behavior ; Brain/drug effects/physiopathology ; *Cocaine/pharmacology ; Disease Outbreaks ; Dopamine/physiology ; Drug and Narcotic Control ; Humans ; Legislation, Drug ; Reward ; *Substance-Related Disorders/drug therapy/epidemiology/physiopathology/prevention ; & control ; United States
    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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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-09-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1989 Sep 1;245(4921):924.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2772645" target="_blank"〉PubMed〈/a〉
    Keywords: Cystic Fibrosis/*genetics ; *Genes ; Humans ; *Mass Media ; United States
    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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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-11-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1989 Nov 24;246(4933):991-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2587995" target="_blank"〉PubMed〈/a〉
    Keywords: International Cooperation ; *Sociology ; Ussr ; United States
    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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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-11-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1989 Nov 10;246(4931):754-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2814497" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Entomology/*trends ; Insect Vectors/*physiology ; Insects/classification/*physiology ; Research Support as Topic ; United States
    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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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-07-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1989 Jul 14;245(4914):126.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2749249" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; *Computer Communication Networks ; *Computer Systems ; *Information Systems ; *Molecular Biology ; National Institutes of Health (U.S.) ; United States
    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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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-07-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1989 Jul 7;245(4913):30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2740912" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*transmission ; HIV/isolation & purification/pathogenicity/ultrastructure ; Humans ; Male ; Spermatozoa/*microbiology/ultrastructure
    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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