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  • Animals  (2.204)
  • 1980-1984  (2.204)
  • 1
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    Evidence for cholinergic neurites in senile plaques (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1984-12-21
    Beschreibung: In the neocortices and amygdalae of young and aged macaques, cholinergic axons were identified by means of a monoclonal antibody to bovine choline acetyltransferase. Many fine, linear, immunoreactive profiles were seen in these animals. In the older animals, some cholinergic axons showed multifocal enlargements along their course. In some instances, neurites with choline acetyltransferase immunoreactivity were associated with deposits of amyloid (visualized with thioflavin T fluorescence). The appearance of these amyloid-associated abnormal cholinergic processes was similar to that of neurites in senile plaques, as shown by conventional silver impregnation techniques. Cholinergic systems thus give rise to some of the neurites within senile plaques.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kitt, C A -- Price, D L -- Struble, R G -- Cork, L C -- Wainer, B H -- Becher, M W -- Mobley, W C -- NS 07179/NS/NINDS NIH HHS/ -- NS 10580/NS/NINDS NIH HHS/ -- NS 15721/NS/NINDS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1984 Dec 21;226(4681):1443-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6505701" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Aging ; Amygdala/enzymology/*pathology ; Amyloid/analysis ; Animals ; Antibodies, Monoclonal ; Axons/enzymology ; Cerebral Cortex/enzymology/*pathology ; Choline O-Acetyltransferase/analysis ; Female ; Humans ; Macaca mulatta ; Male ; Nerve Endings/enzymology ; Parasympathetic Nervous System/enzymology/*pathology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 2
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    Induction of interleukin 2 messenger RNA inhibited by cyclosporin A (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1984-12-21
    Beschreibung: Cyclosporin A blocked production of the lymphokine interleukin 2 by activated T lymphocytes. In a human and a murine cell line this inhibition reflected an absence of interleukin 2 messenger RNA. Under conditions in which these cells are normally stimulated to secrete high levels of interleukin 2, they failed to do so in the presence of cyclosporin A. In both cell lines this failure was accompanied by an absence of interleukin 2 messenger accumulation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Elliott, J F -- Lin, Y -- Mizel, S B -- Bleackley, R C -- Harnish, D G -- Paetkau, V -- New York, N.Y. -- Science. 1984 Dec 21;226(4681):1439-41.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6334364" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cell Line ; Cyclosporins/*pharmacology ; Humans ; Interleukin-2/biosynthesis/*genetics ; Mice ; Protein Biosynthesis/drug effects ; RNA, Messenger/*metabolism ; T-Lymphocytes/metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 3
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    Facilitated sexual behavior reversed and serotonin restored by raphe nuclei transplanted into denervated hypothalamus (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1984-12-21
    Beschreibung: Fetal raphe cells transplanted into the hypothalamus reversed facilitation of feminine sexual behavior in rats with brain lesions induced by 5,7-dihydroxytryptamine. Immunocytochemical and chemical analyses of serotonin indicate that reinnervation of the ventromedial nucleus of the hypothalamus by the transplants is associated with behavioral recovery. The findings suggest that transplanted fetal tissue can exert functional regulation over an innate, complex, hormone-dependent behavior in adult rats.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Luine, V N -- Renner, K J -- Frankfurt, M -- Azmitia, E C -- HD06368/HD/NICHD NIH HHS/ -- HD12011/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1984 Dec 21;226(4681):1436-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6209800" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): 5,7-Dihydroxytryptamine/pharmacology ; Animals ; Castration ; Catecholamines/analysis ; Denervation ; Estradiol/pharmacology ; Female ; Fetus ; Hydroxyindoleacetic Acid/analysis ; Hypothalamus/*physiology/surgery ; Raphe Nuclei/*physiology/transplantation ; Rats ; Serotonin/*metabolism ; *Sexual Behavior, Animal ; Time Factors
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 4
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    The riddle of development (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1984-12-21
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1984 Dec 21;226(4681):1406-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6505697" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Gene Expression Regulation ; Genes, Regulator ; Histones/genetics ; Models, Genetic ; RNA, Ribosomal ; Transcription Factors ; Transcription, Genetic ; Xenopus laevis/*embryology/genetics
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 5
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    High-resolution proton nuclear magnetic resonance analysis of metastatic cancer cells (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1984-12-21
    Beschreibung: High-resolution proton nuclear magnetic resonance (NMR) studies of intact cancer cells revealed differences between cells with the capacity to metastasize and those that produce locally invasive tumors. The NMR resonances that characterize the metastatic cells were associated with an increased ratio of cholesterol to phospholipid and an increased amount of plasma membrane-bound cholesterol ester. High-resolution NMR spectroscopy could therefore be used to assess the metastatic potential of primary tumors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mountford, C E -- Wright, L C -- Holmes, K T -- Mackinnon, W B -- Gregory, P -- Fox, R M -- New York, N.Y. -- Science. 1984 Dec 21;226(4681):1415-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6505699" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cell Line ; Cell Membrane/analysis ; Cholesterol Esters/analysis ; *Magnetic Resonance Spectroscopy ; Membrane Lipids/analysis ; Neoplasm Metastasis/*etiology ; Neoplasms, Experimental/*analysis/pathology ; Rats ; Rats, Inbred Strains ; Triglycerides/analysis
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 6
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    Essential role of insulin in transcription of the rat 25,000 molecular weight casein gene (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1984-12-14
    Beschreibung: Insulin is essential for the accumulation of rat casein messenger RNA (mRNA) in the presence of glucocorticoid and prolactin. The accumulation of certain mRNA's in other tissues has also been linked to insulin action. The present study shows that the accumulation effect on the 25,000 molecular weight rat casein mRNA does not reflect stabilization of the transcript by insulin. Rather, insulin is essential for its synthesis in the presence of glucocorticoid and prolactin.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chomczynski, P -- Qasba, P -- Topper, Y J -- New York, N.Y. -- Science. 1984 Dec 14;226(4680):1326-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6390680" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Caseins/biosynthesis/*genetics ; Culture Techniques ; *Gene Expression Regulation ; Half-Life ; Hydrocortisone/physiology ; Insulin/*physiology ; Mammary Glands, Animal/metabolism ; Molecular Weight ; Prolactin/physiology ; RNA, Messenger/physiology ; Rats ; Transcription, Genetic
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 7
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    Influence of clonal selection on the expression of immunoglobulin variable region genes (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1984-12-14
    Beschreibung: The humoral immune response of the mouse to certain antigens is characterized by the dominant expression of a single or limited number of related, immunoglobulin variable region (V) structures by antibody-secreting lymphocytes. Such dominance could be due to preferred expression of these V regions in the B cell population prior to the immune response or could result from the action of selective or regulatory mechanisms during the immune response. Expression of a heavy chain variable region (VH) gene segment that partially encodes a V region structure that dominates the immune response to para-azophenylarsonate (Ars) in strain A mice was examined in the B cell population of Ars nonimmune mice. This VH gene segment participates in encoding several hundred thousand different V region structures expressed in this B cell population. The immune system is therefore capable of recurrently selecting a single V region structure from such a repertoire for dominant expression by antibody-secreting lymphocytes during an immune response.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Manser, T -- Huang, S Y -- Gefter, M L -- AI13357/AI/NIAID NIH HHS/ -- CA28900/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1984 Dec 14;226(4680):1283-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6334361" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antibody Diversity ; *Antibody Formation ; Azo Compounds/immunology ; B-Lymphocytes/immunology ; Base Sequence ; *Genes ; Hybridomas ; Immunoglobulin Variable Region/*genetics ; Mice ; Radioimmunoassay
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 8
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    RNA required for import of precursor proteins into mitochondria (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1984-12-14
    Beschreibung: A cytoplasmic RNA moiety is necessary for posttranslational uptake of nuclear-encoded mammalian proteins destined for the mitochondrial matrix. Post-translational addition of ribonuclease to a reticulocyte lysate-programmed cell-free translation mixture inhibited subsequent import of six different mitochondrial matrix enzyme precursors into rat liver mitochondria. The required RNA is highly protected, as indicated by the high concentrations of ribonuclease necessary to produce this inhibition. The dependence of the inhibitory effect on temperature, duration of exposure to ribonuclease, and availability of divalent cations is characteristic of the nuclease susceptibility of ribonucleoproteins. The ribonuclease-sensitive component was found in a 400-kilodalton fraction which contains the mitochondrial protein precursors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Firgaira, F A -- Hendrick, J P -- Kalousek, F -- Kraus, J P -- Rosenberg, L E -- AM 09527/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1984 Dec 14;226(4680):1319-22.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6209799" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cell-Free System ; Cytoplasm/metabolism ; Mitochondria, Liver/*metabolism ; Ornithine Carbamoyltransferase/metabolism ; Protein Precursors/*metabolism ; *Protein Processing, Post-Translational ; RNA/*metabolism ; Rats ; Ribonucleases/metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 9
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    Inability of mouse blastomere nuclei transferred to enucleated zygotes to support development in vitro (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1984-12-14
    Beschreibung: More than 90 percent of enucleated one-cell mouse embryos receiving pronuclei from other one-cell embryos successfully develop to the blastocyst stage in vitro. In this investigation, nuclei from successive preimplantation cleavage stages were introduced into enucleated one-cell embryos and the embryos were tested for development in vitro. Although two-cell nuclei supported development to the morula or blastocyst stage, four-cell, eight-cell, and inner cell mass cell nuclei did not. The inability of cell nuclei from these stages to support development reflects rapid loss of totipotency of the transferred nucleus and is not the result of simultaneous transfer of membrane or cytoplasm.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McGrath, J -- Solter, D -- CA-10815/CA/NCI NIH HHS/ -- CA-25875/CA/NCI NIH HHS/ -- HD-12487/HD/NICHD NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1984 Dec 14;226(4680):1317-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6542249" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Blastomeres/*physiology ; Cell Nucleus/*physiology ; Cytoplasm/physiology ; Embryo, Mammalian/*physiology ; Female ; In Vitro Techniques ; Mice ; Nuclear Transfer Techniques ; Zygote/*physiology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 10
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    Monoclonal idiotope vaccine against Streptococcus pneumoniae infection (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1984-12-14
    Beschreibung: A monoclonal anti-idiotope antibody coupled to a carrier protein was used to immunize BALB/c mice against a lethal Streptococcus pneumoniae infection. Vaccinated mice developed a high titer of antibody to phosphorylcholine, which is known to protect against infection with Streptococcus pneumoniae. Measurement of the median lethal dose of the bacteria indicated that anti-idiotope immunization significantly increased the resistance of BALB/c mice to the bacterial challenge. Antibody to an idiotope can thus be used as an antigen substitute for the induction of protective immunity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McNamara, M K -- Ward, R E -- Kohler, H -- AG04180/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 1984 Dec 14;226(4680):1325-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6505692" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antibodies, Monoclonal ; Bacterial Vaccines ; Immunoglobulin Idiotypes/*immunology ; Mice ; Mice, Inbred BALB C ; Phosphorylcholine/immunology ; Pneumococcal Infections/*prevention & control ; Streptococcus pneumoniae/immunology ; *Vaccination
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 11
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    Intrinsic mechanisms of pain inhibition: activation by stress (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1984-12-14
    Beschreibung: Portions of the brain stem seem normally to inhibit pain. In man and laboratory animals these brain areas and pathways from them to spinal sensory circuits can be activated by focal stimulation. Endogenous opioids appear to be implicated although separate nonopioid mechanisms are also evident. Stress seems to be a natural stimulus triggering pain suppression. Properties of electric footshock have been shown to determine the opioid or nonopioid basis of stress-induced analgesia. Two different opioid systems can be activated by different footshock paradigms. This dissection of stress analgesia has begun to integrate divergent findings concerning pain inhibition and also to account for some of the variance that has obscured the reliable measurement of the effects of stress on tumor growth and immune function.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Terman, G W -- Shavit, Y -- Lewis, J W -- Cannon, J T -- Liebeskind, J C -- MH 15795/MH/NIMH NIH HHS/ -- NS-07628/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1984 Dec 14;226(4680):1270-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6505691" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adaptation, Physiological ; Adrenalectomy ; Anesthesia ; Animals ; Brain Stem/physiology ; Conditioning (Psychology) ; Electroshock ; Endorphins/physiology ; Histamine/physiology ; Humans ; Hypophysectomy ; Immunosuppression ; Naltrexone/pharmacology ; Neoplasms/physiopathology ; Nociceptors/physiology ; Pain/*physiopathology ; Pentobarbital/pharmacology ; Rats ; Stress, Physiological/*physiopathology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 12
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    Molecular indices of cell lineage specification in sea urchin embryos (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1984-12-07
    Beschreibung: The origins of several of the differentiated cell lineages of the advanced sea urchin embryo are well defined. Cytological application of molecular probes to three lineages, those responsible for the formation of the skeleton, the gut, and the aboral ectodermal wall of the late embryo, has demonstrated expression of lineage-specific genes long before overt morphological differentiation. These observations lead to useful generalizations regarding the processes of gene regulation that underlie the molecular biology of cell lineage specification in the embryo.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Angerer, R C -- Davidson, E H -- GM-25553/GM/NIGMS NIH HHS/ -- HD-05753/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1984 Dec 7;226(4679):1153-60.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6594757" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Actins/genetics ; Animals ; Blastomeres/physiology ; Calcium-Binding Proteins/genetics ; *Cell Differentiation ; Cytoplasm/physiology ; Ectoderm/physiology ; *Gene Expression Regulation ; Genetic Markers ; Germ Layers/physiology ; Intestines/embryology ; Morphogenesis ; RNA, Messenger/metabolism ; Sea Urchins/*embryology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 13
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    DNA reveals surprises in human family tree (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1984-12-07
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1984 Dec 7;226(4679):1179-82.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6505685" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Dna ; Gorilla gorilla/genetics ; Hominidae/*genetics ; Humans ; Nucleic Acid Hybridization ; Pan troglodytes/genetics ; *Phylogeny
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 14
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    Synapsin I in nerve terminals: selective association with small synaptic vesicles (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1984-12-07
    Beschreibung: Immunocytochemistry revealed that synapsin I is preferentially (and possibly exclusively) associated with small (40- to 60-nanometer) synaptic vesicles and not with large (greater than 60-nanometer) dense-core vesicles in bovine hypothalamus. These observations may explain why synapsin I is found exclusively in neurons, since small synaptic vesicles are specific to neurons whereas large dense-core vesicles in neurons may be considered the equivalent of secretory organelles in endocrine cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Navone, F -- Greengard, P -- De Camilli, P -- MH 17387/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1984 Dec 7;226(4679):1209-11.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6438799" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cattle ; Hypothalamus/metabolism ; Immunoassay ; Microscopy, Electron ; Nerve Endings/*metabolism ; Nerve Tissue Proteins/*metabolism ; Synapsins ; Synaptic Vesicles/*metabolism ; Synaptosomes/analysis
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 15
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    Nucleotide sequences of the human and mouse atrial natriuretic factor genes (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1984-12-07
    Beschreibung: Mouse and human atrial natriuretic factor (ANF) genes have been cloned and their nucleotide sequences determined. Each ANF gene consists of three coding blocks separated by two intervening sequences. The 5' flanking sequences and those encoding proANF are highly conserved between the two species, while the intervening sequences and 3' untranslated regions are not. The conserved sequences 5' of the gene may play an important role in the regulation of ANF gene expression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Seidman, C E -- Bloch, K D -- Klein, K A -- Smith, J A -- Seidman, J G -- AI-18436/AI/NIAID NIH HHS/ -- HL-070208/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1984 Dec 7;226(4679):1206-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6542248" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Atrial Natriuretic Factor ; Base Sequence ; Cloning, Molecular ; Gene Expression Regulation ; Genes ; Heart Atria/metabolism ; Humans ; Mice ; Natriuretic Agents ; Protein Precursors/genetics ; Proteins/*genetics ; Receptors, Glucocorticoid/metabolism
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 16
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    Homologous recombination catalyzed by mammalian cell extracts in vitro (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1984-12-07
    Beschreibung: An assay was developed to detect recombination events taking place in an in vitro reaction. Extracts of cultured mouse preB lymphocytes were found to catalyze homologous recombination between substrate DNA molecules but not site-specific recombination between cloned mouse immunoglobulin D and J genes. Addition of deoxyribonucleoside triphosphates increased the frequency of homologous recombination. This recombination activity was not observed in two differentiated lymphocyte cell lines.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Darby, V -- Blattner, F -- AI19325/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1984 Dec 7;226(4679):1213-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6334360" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; B-Lymphocytes ; Cells, Cultured ; Crossing Over, Genetic ; DNA, Viral ; Immunoglobulin Variable Region/genetics ; Mice ; Mutation ; Nucleoproteins/genetics ; *Recombination, Genetic
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 17
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    A trans-acting product needed for P factor transposition in Drosophila (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1984-12-07
    Beschreibung: A transposable genetic element of the P family in Drosophila melanogaster was found to be unstable in the presence of other P elements but stable in their absence. A sensitive assay for P transpositional activity is provided by the snw allele, a defective P insert in the singed bristle locus which becomes hypermutable only in the presence of complete elements. This measure of activity was highly correlated with a type of female sterility normally associated with P activity. There was no cross-reactivity with transposase from another hybrid dysgenesis-causing element (the I factor).〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Engels, W R -- GM30948/GM/NIGMS NIH HHS/ -- PCM8104332/PC/NCI NIH HHS/ -- New York, N.Y. -- Science. 1984 Dec 7;226(4679):1194-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6095450" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cross Reactions ; *DNA Transposable Elements ; Drosophila melanogaster/*genetics ; Female ; Gonadal Dysgenesis/genetics ; Infertility, Female/genetics ; Male ; Mutation
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 18
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    Morphine analgesia potentiated but tolerance not affected by active immunization against cholecystokinin (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1984-12-07
    Beschreibung: Administration of cholecystokinin was recently found to attenuate opiate analgesia. In the present study, the role of endogenous cholecystokinin in opiate analgesia was examined. Endogenously released cholecystokinin was sequestered by antibodies to cholecystokinin developed in response to an active immunization procedure. Morphine analgesia was potentiated and prolonged in rats immunized against cholecystokinin. The rate of development of morphine tolerance, however, was not affected by the antibodies. Endogenous cholecystokinin appears to function as a short-term modulator of opiate action.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Faris, P L -- McLaughlin, C L -- Baile, C A -- Olney, J W -- Komisaruk, B R -- ES-07066/ES/NIEHS NIH HHS/ -- MH-38894/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1984 Dec 7;226(4679):1215-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6505689" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antibodies ; Cholecystokinin/immunology/*physiology ; *Drug Tolerance ; Immunization ; Male ; Morphine/*pharmacology ; Pain/*physiology ; Rats ; Rats, Inbred Strains ; Time Factors
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 19
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    Tracking exposure to toxic substances (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1984-12-07
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maugh, T H 2nd -- New York, N.Y. -- Science. 1984 Dec 7;226(4679):1183-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6505686" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Carcinogens/*analysis ; Chromatography, Gas ; Chromatography, Thin Layer ; DNA/metabolism ; DNA Repair ; Environmental Exposure ; Enzyme-Linked Immunosorbent Assay ; Humans ; Mutagens/*analysis ; Spectrometry, Fluorescence
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 20
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    Constitutive fragile sites and cancer (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1984-12-07
    Beschreibung: Breaks were observed at 51 sites in homologous chromosomes in lymphocytes from ten humans and two great apes when cells were deprived of thymidine. The incidence of breaks was enhanced by caffeine, a substance that inhibits DNA repair in replicating cells. The locations of 20 sites were correlated with breakpoints that have been related to human malignancy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yunis, J J -- Soreng, A L -- New York, N.Y. -- Science. 1984 Dec 7;226(4679):1199-204.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6239375" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adolescent ; Adult ; Animals ; Caffeine/pharmacology ; Cells, Cultured ; Child ; Chromosome Fragile Sites ; *Chromosome Fragility ; Chromosome Mapping ; Female ; Floxuridine/pharmacology ; Folic Acid/metabolism ; Gorilla gorilla ; Humans ; Male ; Middle Aged ; Neoplasms/*genetics ; Pan troglodytes ; Thymidine/metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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