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  • Pregnancy  (192)
  • Cats
  • American Association for the Advancement of Science (AAAS)  (296)
  • 1980-1984  (214)
  • 1975-1979  (82)
  • 1940-1944
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  • American Association for the Advancement of Science (AAAS)  (296)
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  • 1
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1984-09-21
    Beschreibung: The nervous system of mammals retains throughout the animals' life-span the ability to modify the number, nature, and level of activity of its synapses. Synaptic plasticity is most evident after injury to the nervous system, and the cellular and molecular mechanisms that make it possible are beginning to be understood. Transplantation of brain tissue provides a powerful approach for studying mechanisms of synaptic plasticity. In turn, understanding the response of the central nervous system to injury can be used to optimize transplant survival and integration with the host brain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cotman, C W -- Nieto-Sampedro, M -- AG 00538/AG/NIA NIH HHS/ -- MH 19691/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1984 Sep 21;225(4668):1287-94.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6382610" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Aging ; Animals ; Brain/*growth & development/*physiology ; Cerebral Cortex/physiology/transplantation ; Denervation ; Female ; Humans ; Nerve Regeneration ; *Neuronal Plasticity ; Peripheral Nerves/physiology ; Pregnancy ; Synapses/*physiology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1984-08-10
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dickson, D -- New York, N.Y. -- Science. 1984 Aug 10;225(4662):606.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6740327" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Embryo Research ; Embryo Transfer ; Embryo, Mammalian ; Female ; Fertilization in Vitro ; *Government Regulation ; Great Britain ; Humans ; *Legislation, Medical ; Oocyte Donation ; Pregnancy ; special license be required for all embryo experimentation and that any ; unlicensed research be considered a criminal offense. Regulation would be by a ; new statutory body responsible for monitoring in vitro fertilization research and ; various types of fertility treatments. Surrogate motherhood would be prohibited. ; Reservations expressed by professional groups as well as by some committee ; members about the restrictions reflect legal and social problems surrounding the ; uses of human embryos.
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1984-02-10
    Beschreibung: A direct hypothalamocerebellar projection in the cat was revealed by means of retrograde transport of wheat germ agglutinin--horseradish peroxidase complex. This appears to be the first demonstration of a significant autonomic input to the cerebellum. The projection has a widespread origin and is bilateral with an ipsilateral preponderance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dietrichs, E -- New York, N.Y. -- Science. 1984 Feb 10;223(4636):591-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6198719" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Axonal Transport ; Cats ; Cerebellar Cortex/physiology ; Cerebellum/*physiology ; Efferent Pathways/physiology ; Horseradish Peroxidase ; Hypothalamus/*physiology ; Lectins ; Neurons/*physiology ; Wheat Germ Agglutinins
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Publikationsdatum: 1984-01-20
    Beschreibung: A radioiodinated ligand that binds to muscarinic acetylcholine receptors was shown to distribute in the brain by a receptor-mediated process. With single-photon-emission imaging techniques, radioactivity was detected in the cerebrum but not in the cerebellum, whereas with a flow-limited radiotracer, radioactivity was detected in cerebrum and cerebellum. Single-photon-emission computed tomography showed good definition of the caudate putamen and cortex in man.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Eckelman, W C -- Reba, R C -- Rzeszotarski, W J -- Gibson, R E -- Hill, T -- Holman, B L -- Budinger, T -- Conklin, J J -- Eng, R -- Grissom, M P -- New York, N.Y. -- Science. 1984 Jan 20;223(4633):291-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6608148" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Brain Chemistry ; Cats ; Caudate Nucleus/analysis ; Cerebellum/analysis ; Dogs ; Humans ; Putamen/analysis ; Quinuclidines/metabolism ; Quinuclidinyl Benzilate/metabolism ; Radioligand Assay ; Rats ; Receptors, Muscarinic/*analysis/metabolism ; Tomography, Emission-Computed
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1984-06-29
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fox, J L -- New York, N.Y. -- Science. 1984 Jun 29;224(4656):1414.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6729460" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Animals, Laboratory ; California ; Cats ; Dogs ; *Ethics, Medical ; Legislation, Medical ; Maryland ; National Institutes of Health (U.S.) ; United States
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 6
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1984-01-13
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fox, J L -- New York, N.Y. -- Science. 1984 Jan 13;223(4632):151.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6691141" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Animals, Domestic ; *Animals, Laboratory ; Cats ; Dogs ; *Legislation, Veterinary ; Massachusetts ; *Research
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 7
    Publikationsdatum: 1984-08-31
    Beschreibung: Adult female hypogonadal mice, in whom hypogonadism is secondary to a genetic deficiency in hypothalamic gonadotropin-releasing hormone (GnRH), are infertile. Mating, pregnancy, and delivery of healthy litters were achieved after transplantation of normal fetal preoptic area tissue, a major site of GnRH-containing cell bodies, into the third ventricle of adult female hypogonadal mice. Immunocytochemistry revealed GnRH-containing neurons in the grafts and GnRH-containing processes extending to the lateral median eminence of the host brains.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gibson, M J -- Krieger, D T -- Charlton, H M -- Zimmerman, E A -- Silverman, A J -- Perlow, M J -- 1RO1NS20335/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1984 Aug 31;225(4665):949-51.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6382608" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Brain Chemistry ; Cerebral Ventricles/pathology ; *Copulation ; Female ; Hypogonadism/genetics/pathology/*physiopathology ; Infertility, Female/etiology/*therapy ; Male ; Mice ; Neurons/analysis ; Ovulation ; Pituitary Hormone-Releasing Hormones/analysis/*deficiency ; Pregnancy ; Preoptic Area/*transplantation ; *Reproduction
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 8
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1984-07-20
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G -- New York, N.Y. -- Science. 1984 Jul 20;225(4659):302-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6740312" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Female ; Fetus/*physiology ; Humans ; Infant, Newborn ; Infant, Premature ; Learning/*physiology ; Male ; Pregnancy ; Rats
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 9
    Publikationsdatum: 1984-01-20
    Beschreibung: Low levels of cerebral concussion in the cat produce reversible behavioral suppression presumably associated with unconsciousness. This injury is also associated with increased rates of glucose utilization in regions within the dorsomedial pontine tegmentum. Microinjection of carbachol into these regions produced behavioral suppression resembling that following concussion. These data, together with previously published observations on cholinergic responses to brain injury, suggest that concussive unconsciousness may be attributable in part to activation of cholinergic pontine sites.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hayes, R L -- Pechura, C M -- Katayama, Y -- Povlishock, J T -- Giebel, M L -- Becker, D P -- NS 12587/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1984 Jan 20;223(4633):301-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6701514" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Atropine/pharmacology ; Brain Concussion/*physiopathology ; Carbachol/pharmacology ; Cats ; Cholinergic Fibers/*physiopathology ; Deoxyglucose/metabolism ; Pons/metabolism/*physiopathology ; Tetracaine/pharmacology ; Unconsciousness/*physiopathology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 10
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1984-01-27
    Beschreibung: Exposing pregnant rats to carbon monoxide (150 parts per million) produced only minor reductions in the birth weights of the pups and gave no evidence of overt teratogenesis. However, behavioral evaluation of learning and memory processes in a two-way avoidance task suggested a functional deficit in the central nervous system of the exposed offspring. Multiple dependent measures and specific control groups confirmed that this deficit was independent of nonassociative or motivational alterations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mactutus, C F -- Fechter, L D -- ES 01589/ES/NIEHS NIH HHS/ -- ES 07094/ES/NIEHS NIH HHS/ -- New York, N.Y. -- Science. 1984 Jan 27;223(4634):409-11.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6691152" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Avoidance Learning/*drug effects ; Birth Weight/drug effects ; Carbon Monoxide/*toxicity ; Conditioning (Psychology) ; Female ; Male ; Memory/*drug effects ; Pregnancy ; *Prenatal Exposure Delayed Effects ; Rats
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 11
    Publikationsdatum: 1984-02-17
    Beschreibung: Cell-free conditioned media from human T cells transformed by human T-cell leukemia-lymphoma virus (HTLV-I) were tested for the production of soluble biologically active factors, including several known lymphokines. The cell lines used were established from patients with T-cell leukemia-lymphoma and from human umbilical cord blood and bone marrow leukocytes transformed by HTLV-I in vitro. All of the cell lines liberated constitutively one or more of the 12 biological activities assayed. These included macrophage migration inhibitory factor (MIF), leukocyte migration inhibitory factor (LIF), leukocyte migration enhancing factor (MEF), macrophage activating factor (MAF), differentiation inducing factor (DIF), colony stimulating factor (CSF), eosinophil growth and maturation activity (eos. GMA), fibroblast activating factor (FAF), gamma-interferon and, in rare instances, T-cell growth factor (TCGF). Some cell lines produced interleukin 3 (IL-3), platelet-derived growth factor (PDGF), or B-cell growth factors (BCGF). Such cells should prove useful for the production of lymphokines and as sources of specific messenger RNA's for their genetic cloning.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Salahuddin, S Z -- Markham, P D -- Lindner, S G -- Gootenberg, J -- Popovic, M -- Hemmi, H -- Sarin, P S -- Gallo, R C -- New York, N.Y. -- Science. 1984 Feb 17;223(4637):703-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6320367" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Antibodies, Monoclonal ; Antigens, Neoplasm/analysis ; Bone Marrow ; Cell Line ; *Cell Transformation, Neoplastic ; Cells, Cultured ; Deltaretrovirus/*genetics ; Female ; Humans ; Leukemia/*microbiology ; Lymphokines/*biosynthesis ; Lymphoma/*microbiology ; Phenotype ; Pregnancy ; T-Lymphocytes/*immunology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 12
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1984-11-02
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1984 Nov 2;226(4674):521.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6387909" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): 2,4,5-Trichlorophenoxyacetic Acid/adverse effects ; 2,4-Dichlorophenoxyacetic Acid/adverse effects ; Combat Disorders/psychology ; Female ; Humans ; Pregnancy ; Tetrachlorodibenzodioxin/adverse effects ; *Twins/psychology ; United States ; *United States Department of Veterans Affairs ; *Veterans ; Vietnam
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 13
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1984-02-24
    Beschreibung: Human oocytes were collected by laparoscopy and fertilized and cultured in vitro. Human chorionic gonadotropin was detected in the medium surrounding two embryos cultured for more than 7 days after fertilization.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fishel, S B -- Edwards, R G -- Evans, C J -- New York, N.Y. -- Science. 1984 Feb 24;223(4638):816-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6546453" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Blastocyst/*physiology ; Chorionic Gonadotropin/*secretion ; *Embryonic Development ; Female ; Fertilization in Vitro ; Humans ; Pregnancy ; Trophoblasts/physiology
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    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 14
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1984-03-16
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1984 Mar 16;223(4641):1157.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6367037" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Combat Disorders/epidemiology ; Female ; Humans ; Male ; *Military Medicine ; Pregnancy ; *Twins ; United States ; United States Department of Veterans Affairs ; *Veterans ; Vietnam ; *Warfare
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 15
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1984-06-01
    Beschreibung: Administration of haloperidol, a common neuroleptic, to pregnant or lactating rats impaired the masculine sex behavior of their male offspring. Prenatal haloperidol did not affect testosterone concentrations in fetuses. Maternal administration of apomorphine, a dopamine agonist, and of alpha-methyl-p-tyrosine, an inhibitor of dopamine synthesis, also demasculinized male offspring. In both experiments other behaviors and developmental milestones were unaffected. Perinatal haloperidol, apomorphine, and alpha-methyl-p-tyrosine did not lower testosterone in adulthood. These drugs may act directly on neurons that control masculine behavior without lowering testosterone prenatally or in adulthood.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hull, E M -- Nishita, J K -- Bitran, D -- Dalterio, S -- 2S07RR0706618/RR/NCRR NIH HHS/ -- HD 16329/HD/NICHD NIH HHS/ -- MH 3593901/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1984 Jun 1;224(4652):1011-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6719125" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Animals, Newborn ; Apomorphine/pharmacology ; Dopamine/*physiology ; Ejaculation/drug effects ; Female ; Haloperidol/*pharmacology ; Male ; Methyltyrosines/pharmacology ; Pregnancy ; Prenatal Exposure Delayed Effects ; Rats ; Receptors, Dopamine/drug effects ; Sexual Behavior, Animal/*drug effects/physiology ; Testosterone/blood
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 16
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1984-02-10
    Beschreibung: Regression of the fetal rat Mullerian duct in vitro was stimulated by sodium fluoride in the absence of Mullerian inhibiting substance. The action of Mullerian inhibiting substance was inhibited by sodium vanadate, adenosine 5'-triphosphate, and several related nucleotides in the presence of manganese ions. Epidermal growth factor specifically inhibited the substance, but only with manganese ions present. Insulin, platelet-derived growth factor, and nerve growth factor had no effect. These results suggest that dephosphorylation of membrane proteins mediates the action of Mullerian inhibiting substance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hutson, J M -- Fallat, M E -- Kamagata, S -- Donahoe, P K -- Budzik, G P -- CA-17393/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1984 Feb 10;223(4636):586-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6607531" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Anti-Mullerian Hormone ; Cations, Divalent ; Dimethyl Sulfoxide/pharmacology ; Epidermal Growth Factor/pharmacology ; Female ; *Glycoproteins ; *Growth Inhibitors ; Kinetics ; Male ; Membrane Proteins/metabolism ; Mullerian Ducts/drug effects/*physiology ; Phosphorylation ; Pregnancy ; Rats ; Sodium Fluoride/pharmacology ; Testicular Hormones/*physiology ; Vanadates ; Vanadium/pharmacology
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    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 17
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1984-09-07
    Beschreibung: Several naturally occurring and synthetic flavones were found to inhibit the aromatization of androstenedione and testosterone to estrogens catalyzed by human placental and ovarian microsomes. These flavones include (in order of decreasing potency) 7,8-benzoflavone, chrysin, apigenin, flavone, flavanone, and quercetin; 5,6-benzoflavone was not inhibitory. 7,8-Benzoflavone and chrysin were potent competitive inhibitors and induced spectral changes in the aromatase cytochrome P-450 indicative of substrate displacement. Flavones may thus compete with steroids in their interaction with certain monooxygenases and thereby alter steroid hormone metabolism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kellis, J T Jr -- Vickery, L E -- AM1005/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1984 Sep 7;225(4666):1032-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6474163" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Androstenedione/*metabolism ; *Aromatase Inhibitors ; Benzoflavones/metabolism/pharmacology ; Binding Sites ; Binding, Competitive ; Female ; Flavonoids/metabolism/*pharmacology ; Humans ; Kinetics ; Microsomes/enzymology ; Ovary/*enzymology ; Oxidoreductases/*antagonists & inhibitors ; Placenta/*enzymology ; Pregnancy ; Testosterone/*metabolism ; beta-Naphthoflavone
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    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 18
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1984-05-25
    Beschreibung: In vitro pharmacological studies demonstrated that exogenously applied vasoactive intestinal polypeptide (VIP) relaxes the smooth muscle cells of cat cerebral arteries, whereas substance P constricts them. Ultrastructural-immunocytochemical techniques show that a VIP-like substance is present in the large granular vesicles of nonsympathetic nerve axons and terminals in the cerebral arterial walls. These results provide strong evidence in favor of the hypothesis that a VIP-like substance is the transmitter for vasodilation in cerebral blood vessels.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, T J -- Saito, A -- Berezin, I -- BRSG S07RR0543/RR/NCRR NIH HHS/ -- HL 27763/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1984 May 25;224(4651):898-901.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6719122" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cats ; Cerebral Arteries/drug effects ; *Cerebrovascular Circulation ; In Vitro Techniques ; Vasoactive Intestinal Peptide/pharmacology/*physiology ; *Vasodilation ; Vasomotor System/drug effects
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  • 19
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1984-11-16
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1984 Nov 16;226(4676):823.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6494912" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Female ; Mice ; Mice, Mutant Strains/*genetics ; Neoplasms, Experimental/*genetics ; *Oncogenes ; Pregnancy
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 20
    Publikationsdatum: 1984-05-25
    Beschreibung: Saccharin preference and performance in a Lashley III maze were found to be altered in adult male and female rats that had been exposed to alcohol during gestation. Specifically, the sexual dimorphism normally observed in both behaviors was absent in fetal alcohol-exposed animals. The lack of sexual dimorphism appeared to result from a masculinization of the exposed females and a feminization of the exposed males.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McGivern, R F -- Clancy, A N -- Hill, M A -- Noble, E P -- AA-03513/AA/NIAAA NIH HHS/ -- AA05174/AA/NIAAA NIH HHS/ -- MH08645/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1984 May 25;224(4651):896-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6719121" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Age Factors ; Animals ; Discrimination Learning/drug effects ; Ethanol/*adverse effects ; Female ; Food Preferences/drug effects ; Gestational Age ; Male ; Pregnancy ; *Prenatal Exposure Delayed Effects ; Rats ; Saccharin ; *Sex Characteristics
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 21
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1984-02-03
    Beschreibung: The neurotoxin kainic acid caused dose-dependent morphological changes in horizontal cells of the retinas of adult cats and rabbits. High concentrations of kainic acid killed the cells, but when exposed to sublethal doses they contracted their dendritic fields and sent sprouting processes into the inner retina. It appears that kainic acid can induce neuronal growth as well as degeneration and that the potential for morphological plasticity is still present in neurons of the adult mammalian retina.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Peichl, L -- Bolz, J -- New York, N.Y. -- Science. 1984 Feb 3;223(4635):503-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6691162" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cats ; Dendrites/ultrastructure ; Dose-Response Relationship, Drug ; Kainic Acid/*pharmacology ; Nerve Degeneration/drug effects ; Neurons/cytology/*drug effects ; Pyrrolidines/*pharmacology ; Rabbits ; Retina/cytology/*drug effects
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 22
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1984-05-11
    Beschreibung: An endotoxin produced by Escherichia coli caused a decrease in prolactin concentrations in the plasma of sows when given at low dosages 2 days postpartum. Five to tenfold increases occurred in the plasma cortisol concentrations. Piglet growth, used as an indicator of milk secretion by the sows, was significantly depressed after the endotoxin administration. Some cases of lactation failure in the periparturient sow may thus be due to endotoxins suppressing prolactin concentrations. This appears to be the first report of a bacterial endotoxin having an effect on prolactin in any species.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Smith, B B -- Wagner, W C -- New York, N.Y. -- Science. 1984 May 11;224(4649):605-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6369541" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Endotoxins/*pharmacology ; *Escherichia coli ; Female ; Lactation/drug effects ; Lactation Disorders/etiology ; Pregnancy ; Prolactin/*blood ; Swine/*physiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 23
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1984-06-29
    Beschreibung: The spike-triggered averaging of dorsal and ventral root potentials permits the identification of two populations of interneurons in the intermediate nucleus of the cat spinal cord. One produced negative dorsal root potentials and inhibitory ventral root potentials, in some cases with monosynaptic latencies, suggesting that they mediate presynaptic inhibition of group I afferent fibers from muscles and postsynaptic inhibition of motoneurons. The other population mediated only nonreciprocal postsynaptic inhibition of motoneurons.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Solodkin, M -- Jimenez, I -- Rudomin, P -- NS 09196/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1984 Jun 29;224(4656):1453-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6328657" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Action Potentials ; Animals ; Cats ; Interneurons/*physiology ; Motor Neurons/physiology ; Neurons, Afferent/physiology ; Spinal Cord/cytology/*physiology ; Synapses/*physiology ; Synaptic Transmission
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  • 24
    Publikationsdatum: 1984-11-23
    Beschreibung: Metastatic mouse melanoma cells have a high affinity for the basement membrane and the ability to degrade it; these properties may allow tumor cells to invade the membrane and disseminate. In this study it was found that the metastatic potential of mouse melanoma cells varied when the cells were exposed in culture to fibronectin or laminin. After removal of fibronectin or exposure to laminin, the cells had an increased affinity for basement membrane collagen, were more invasive of basement membranes in vitro, and produced more lung colonies in vivo. These changes are correlated with and may be due to an increase in the laminin-binding capacity of the tumor cell surface.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Terranova, V P -- Williams, J E -- Liotta, L A -- Martin, G R -- New York, N.Y. -- Science. 1984 Nov 23;226(4677):982-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6505678" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amnion/physiology ; Animals ; Cell Division/drug effects ; Cell Line ; Female ; Fibronectins/*pharmacology ; Humans ; Immune Sera ; Kinetics ; Laminin/*pharmacology ; Melanoma/*pathology ; Mice ; Neoplasm Metastasis/*pathology ; Pregnancy
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 25
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1984-07-13
    Beschreibung: Genetic screening is a systematic search in the population for persons of certain genotypes. The usual purpose is to detect persons who themselves or whose offspring are at risk for genetic diseases or genetically determined susceptibilities to environmental agents. Is genetic screening a marvel about to free us from the scourge of genetic disease or a menace about to invade our privacy and determine who may reproduce? There are three different types of genetic screening. Newborn screening identifies serious genetic disease at birth, permitting prompt treatment to prevent mental and physical retardation. Fetal screening and prenatal diagnosis identify genetic disease in the fetus permitting selective termination of pregnancy and the opportunity to have children free of defects detectable in utero. Carrier screening identifies individuals heterozygous for a gene for a serious recessive disease who may be at risk for affected offspring. The challenge to society is to provide (by way of cost-effective programs) expert services, including genetic counseling and follow-up, to all who may benefit, to ensure confidentiality and freedom of choice, and to avoid misunderstanding and stigmatization. It is recommended that the objective of screening programs should be to maximize the options available to families at risk rather than to reduce the incidence of genetic diseases. Whenever possible, the providers of these services should be the providers of primary health care. Urgently needed are a greater awareness of avoidable genetic diseases on the part of primary care providers and efforts to familiarize the public with the basic concepts of human genetics through the public school system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rowley, P T -- New York, N.Y. -- Science. 1984 Jul 13;225(4658):138-44.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6729472" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amniocentesis ; Disclosure ; Ethics, Medical ; Female ; *Genetic Diseases, Inborn ; *Genetic Testing ; Heterozygote ; Heterozygote Detection ; Humans ; Infant, Newborn ; Information Dissemination ; Insemination, Artificial ; Mandatory Programs ; Metabolism, Inborn Errors/genetics ; Occupational Medicine ; Personal Autonomy ; Phenylketonurias/genetics ; Pregnancy ; Prenatal Diagnosis ; *Risk Assessment ; Spermatozoa ; Tay-Sachs Disease/genetics ; Voluntary Programs ; fetal, and carrier, Rowley describes the development and current status of each, ; as well as the ethical, legal, psychological, and social issues involved. He ; briefly considers the special cases of genetic screening of industrial employees ; and of semen donors. He recommends that the goal of screening programs should be ; to maximize the options available to families at risk rather than to reduce the ; incidence of genetic disease. To accomplish this goal, he urges public and ; professional education on human genetics, research on the best delivery ; mechanisms for current technologies, and the clarification and coordination of ; the roles of health care providers, voluntary organizations, and government ; agencies.
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 26
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1984-03-09
    Beschreibung: Newborn cats and mice became infected with Alaria marcianae if they nursed from females that had been experimentally infected with the parasite. All lactating females showed mesocercarial stages in their mammary glands. This may be the first trematode found to undergo transmission through the mammary glands under experimental conditions. Similarities in the behavior of mesocercariae in humans and in the mouse suggest that an infected human female might infect her infant if she elected to nurse it.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shoop, W L -- Corkum, K C -- New York, N.Y. -- Science. 1984 Mar 9;223(4640):1082-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6695195" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Animals, Newborn ; Cats ; Feces/parasitology ; Female ; *Lactation ; Mammary Glands, Animal/*parasitology ; Maternal-Fetal Exchange ; Mice ; Pregnancy ; Trematode Infections/congenital/parasitology/*transmission
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 27
    Publikationsdatum: 1984-06-01
    Beschreibung: The effects of marginal malnourishment , infections, and environmental chemicals on growth and reproductive success in Swiss-Webster white mice and wild deer mice were studied with fractional factorial designs. Interaction effects were discovered. For example, malnourished mice were more sensitive to virus exposure and environmental chemicals (a plant growth regulator or polychlorinated biphenyls). Since several commercial plant growth regulators also appear to suppress the immune system, these results cast doubt on the adequacy of current toxicity testing procedures in which factors are studied individually and not in combination.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Porter, W P -- Hinsdill, R -- Fairbrother, A -- Olson, L J -- Jaeger, J -- Yuill, T -- Bisgaard, S -- Hunter, W G -- Nolan, K -- 5-T32-ES07015/ES/NIEHS NIH HHS/ -- New York, N.Y. -- Science. 1984 Jun 1;224(4652):1014-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6426058" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Animals, Wild ; Chlormequat/adverse effects ; Cyclophosphamide/adverse effects ; Encephalomyelitis, Venezuelan Equine/physiopathology ; Environmental Exposure ; Female ; Food Supply ; Growth/*drug effects ; Humans ; Immunity/*drug effects ; Mice ; Nutrition Disorders/physiopathology ; Peromyscus ; Polychlorinated Biphenyls/adverse effects ; Pregnancy ; Reproduction/*drug effects ; Water Supply
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 28
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1984-08-17
    Beschreibung: Enkephalin distribution was examined in autonomic areas of the rat thoracic spinal cord. The localization of enkephalin fibers coincided with nuclear regions containing sympathetic preganglionic neurons. Horizontal sections revealed a pattern for enkephalin fibers resembling Laruelle's description of the localization of sympathetic preganglionic neurons as rungs of a ladder.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Romagnano, M A -- Hamill, R W -- New York, N.Y. -- Science. 1984 Aug 17;225(4663):737-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6463650" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Autonomic Fibers, Preganglionic/physiology ; Cats ; Colchicine ; Enkephalins/*physiology ; Female ; Male ; Rats ; Rats, Inbred Strains ; Spinal Cord/*physiology ; Sympathetic Nervous System/*physiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 29
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1983-11-04
    Beschreibung: Blink-startle responses to vibroacoustic stimulation were monitored ultrasonically in human fetuses of known gestational age. Responses were first elicited between 24 and 25 weeks of gestational age and were present consistently after 28 weeks. Defining the developmental sequence for audition provides a foundation for diagnosing deafness and recognizing aberrant responses antenatally.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Birnholz, J C -- Benacerraf, B R -- New York, N.Y. -- Science. 1983 Nov 4;222(4623):516-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6623091" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acoustic Stimulation ; Ear/*embryology ; Female ; Fetus/*physiology ; Gestational Age ; *Hearing ; Humans ; Pregnancy ; Ultrasonography ; Vibration
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 30
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1983-03-25
    Beschreibung: The activity of 7,12-dimethylbenz[a]anthracene hydroxylase in the rat ovary is several times higher in the proestrous phase of the estrous cycle than in the estrous and metestrous plus diestrous phases. Administration of gonadotropin leads to a similar increase in the capacity of the ovary to metabolize xenobiotics. This variation in the activity of 7,12-dimethylbenz[a]anthracene hydroxylase during the estrous cycle may be related to the marked changes in the incidence of ovarian cancer during menopause and in women taking contraceptive pills.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bengtsson, M -- Rydstrom, J -- New York, N.Y. -- Science. 1983 Mar 25;219(4591):1437-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6681915" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Aryl Hydrocarbon Hydroxylases/*metabolism ; Cytochrome P-450 Enzyme System/metabolism ; Epoxide Hydrolases/metabolism ; *Estrus ; Female ; Glutathione Transferase/metabolism ; Gonadotropins, Equine/*pharmacology ; Metestrus ; Ovary/*physiology ; Pregnancy ; Proestrus ; Quinone Reductases/metabolism ; Rats ; Rats, Inbred Strains
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 31
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1983-09-23
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1983 Sep 23;221(4617):1244-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6684327" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Dose-Response Relationship, Drug ; Ethanol/*adverse effects ; Female ; Pregnancy ; Pregnancy, Animal/*drug effects
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 32
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1983-08-12
    Beschreibung: Of 76 cutaneously activated neurons recorded from the ventral posterior thalamus of awake, behaving monkeys, nine were weakly excited by innocuous skin stimulation and responded maximally only when noxious mechanical cutaneous stimuli were delivered within small, contralateral receptive fields. These results show that neurons capable of encoding the spatial and temporal features of noxious stimuli are located in the ventral posterior thalamus of the awake primate.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Casey, K L -- Morrow, T J -- NS 12581/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1983 Aug 12;221(4611):675-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6867738" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cats ; Consciousness/physiology ; Electric Stimulation ; Neurons, Afferent/physiology ; Pain/*physiopathology ; Physical Stimulation ; Rats ; Saimiri ; Thalamic Nuclei/physiology ; Thalamus/cytology/*physiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 33
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1983-08-26
    Beschreibung: The rate of increase of population in less developed countries accelerated rapidly from 1850 to 1960 because of a rapid decline in mortality while fertility remained high. In the 1960's, the birth rate as a whole began to decline more rapidly than the death rate--very rapidly in some populations, most notably that of China, more gradually in others, and not at all in some of the poorest populations. The momentum of growth implies continued increase in populations for several decades even in countries where fertility has fallen the most, and very large additional increases where there has been no decline in the rate of childbearing.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Coale, A J -- New York, N.Y. -- Science. 1983 Aug 26;221(4613):828-32.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6879179" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Age Factors ; Birth Rate ; *Developing Countries ; Female ; *Fertility ; Humans ; Marriage ; Parity ; Pregnancy
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 34
    Publikationsdatum: 1983-05-20
    Beschreibung: The acquired immune deficiency syndrome (AIDS) is characterized by T-lymphocyte dysfunction and is frequently accompanied by opportunistic infections and Kaposi's sarcoma. Human T-cell leukemia virus (HTLV) is associated with T-cell malignancies and can transform T lymphocytes in vitro. In an attempt to find evidence of HTLV infection in patients with AIDS, DNA from samples of peripheral blood lymphocytes from 33 AIDS patients was analyzed by Southern blot-hybridization with a radiolabeled cloned HTLV DNA probe. Analysis of DNA from both the fresh (uncultured) lymphocytes and from T cells cultured with T-cell growth factor revealed the presence of integrated HTLV proviral sequences in lymphocytes from two of the patients, both of whom had antibody to HTLV. The proviral sequences could not be detected in blood samples obtained from these individuals at a later date, consistent with the possibility that the population of infected cells had become depleted.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gelmann, E P -- Popovic, M -- Blayney, D -- Masur, H -- Sidhu, G -- Stahl, R E -- Gallo, R C -- New York, N.Y. -- Science. 1983 May 20;220(4599):862-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6601822" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acquired Immunodeficiency Syndrome/etiology/immunology/*microbiology ; Adult ; Animals ; Cats ; DNA, Viral/*analysis ; Humans ; Male ; Middle Aged ; *Retroviridae/genetics ; T-Lymphocytes/analysis/microbiology ; Tumor Virus Infections/complications/*microbiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 35
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1983-10-14
    Beschreibung: In vitro fertilization, in its first 5 years of use, has met minimum standards for efficacy and safety, as judged by published clinical reports. It is becoming more widely available as an approach for overcoming sterility in married couples and appears also to be gaining social acceptance in that context. Several technical options presented by the procedure, particularly storage of frozen embryos and embryo transfers involving third-party contributions, are less fully evaluated clinically and raise social, ethical, and legal questions that go beyond the original medical model for therapeutic intervention. The clinical success of in vitro fertilization and the options it affords call for careful policy consideration. Estimates of costs and of potential demand for and supply of services are provided and the current status of relevant policy in the United States and abroad is discussed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Grobstein, C -- Flower, M -- Mendeloff, J -- New York, N.Y. -- Science. 1983 Oct 14;222(4620):127-33.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6623063" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Advisory Committees ; Costs and Cost Analysis ; Embryo Transfer ; Ethical Review ; Ethics ; Fallopian Tube Diseases/therapy ; Federal Government ; Female ; Fertilization in Vitro/*methods ; Humans ; Infertility, Female/therapy ; Infertility, Male/therapy ; Legislation, Medical ; Male ; Obstetrics/economics/standards ; Oocyte Donation ; Pregnancy ; Resource Allocation ; *Risk Assessment ; during its first five years. Efficacy, safety, costs, demand and supply, and ; feasible extensions of the basic procedure are discussed. The authors contend ; that, while Australia and Great Britain have made progress toward formulating ; public policy on IVF, efforts in the United States have not gone beyond a 1979 ; report and recommendations issued by the Department of Health, Education, and ; Welfare's Ethics Advisory Board. Given the ready clinical and public acceptance ; of IVF, there is need for an oversight mechanism at the federal level, perhaps ; via a forum concerned also with the overlapping area of human genetic ; intervention.
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  • 36
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1983-09-09
    Beschreibung: Visually evoked responses to counterphased gratings were recorded from the cat visual cortex before and after physostigmine administration. Physostigmine markedly reduced the responses to low spatial frequencies, but minimally affected the response to high frequencies. This effect is considered cholinergic since it could be reversed by atropine. These results support at least a two-channel model of spatial frequency responsivity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Harding, T H -- Wiley, R W -- Kirby, A W -- New York, N.Y. -- Science. 1983 Sep 9;221(4615):1076-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6879206" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Atropine/pharmacology ; Cats ; Evoked Potentials, Visual ; Models, Neurological ; Parasympathetic Nervous System/*physiology ; Physostigmine/pharmacology ; *Vision, Ocular/drug effects ; Visual Cortex/*physiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 37
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1983-04-22
    Beschreibung: Female mice that had been situated in utero between two female fetuses displayed higher levels of active avoidance responding in adult life than females that had been located between two male fetuses and males for whom uterine position was without effect. Uterine position, therefore, influences acquired as well as species-typical behaviors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hauser, H -- Gandelman, R -- New York, N.Y. -- Science. 1983 Apr 22;220(4595):437-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836288" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Androgens/physiology ; Animals ; Avoidance Learning/*physiology ; Female ; Fetus/*physiology ; Male ; Mice ; Pregnancy ; Rats ; Sex Factors ; Uterus
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 38
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1983-07-08
    Beschreibung: When active shortening of the cat papillary muscle was allowed at any time during a contraction, the intracellular concentration of free calcium ions, detected with the calcium-sensitive bioluminescent protein aequorin, was higher than at comparable times in isometric twitches. The difference was not attributable to the differences of length involved or to motion artifacts, and must have been related to the act of shortening or the difference in force development in the two types of contractions. This observation and the phenomenon of shortening deactivation are both consistent with the hypothesis that attachment of cross bridges increases the affinity of the myofilaments for calcium ions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Housmans, P R -- Lee, N K -- Blinks, J R -- HL 12186/HL/NHLBI NIH HHS/ -- TW 03046/TW/FIC NIH HHS/ -- New York, N.Y. -- Science. 1983 Jul 8;221(4606):159-61.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857274" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Aequorin ; Animals ; Calcium/analysis/*physiology ; Cats ; Extracellular Space/analysis ; *Myocardial Contraction ; Myocardium/*metabolism ; Sarcoplasmic Reticulum/physiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 39
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1983-05-06
    Beschreibung: Arachidonic acid plays a central role in a biological control system where such oxygenated derivatives as prostaglandins, thromboxanes, and leukotrienes are mediators. The leukotrienes are formed by transformation of arachidonic acid into an unstable epoxide intermediate, leukotriene A4, which can be converted enzymatically by hydration to leukotriene B4, and by addition of glutathione to leukotriene C4. This last compound is metabolized to leukotrienes D4 and E4 by successive elimination of a gamma-glutamyl residue and glycine. Slow-reacting substance of anaphylaxis consists of leukotrienes C4, D4, and E4. The cysteinyl-containing leukotrienes are potent bronchoconstrictors, increase vascular permeability in postcapillary venules, and stimulate mucus secretion. Leukotriene B4 causes adhesion and chemotactic movement of leukocytes and stimulates aggregation, enzyme release, and generation of superoxide in neutrophils. Leukotrienes C4, D4, and E4, which are released from the lung tissue of asthmatic subjects exposed to specific allergens, seem to play a pathophysiological role in immediate hypersensitivity reactions. These leukotrienes, as well as leukotriene B4, have pro-inflammatory effects.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Samuelsson, B -- New York, N.Y. -- Science. 1983 May 6;220(4597):568-75.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6301011" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Arachidonic Acids/metabolism/pharmacology/physiology ; Bronchi/drug effects ; Cats ; Chemical Phenomena ; Chemistry ; Cricetinae ; Guinea Pigs ; Haplorhini ; Humans ; Hypersensitivity, Immediate/*physiopathology ; Inflammation/*physiopathology ; Leukocytes/drug effects/metabolism ; Leukotriene B4/pharmacology/*physiology ; Mice ; Microcirculation/drug effects ; Rabbits ; Rats ; SRS-A/*physiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 40
    Publikationsdatum: 1983-07-01
    Beschreibung: What may be the first calicivirus isolate from any primate species, including man, was recovered from a herpesvirus-like lip lesion on a pygmy chimpanzee and then, 6 months later, from the throat of the same animal. The infected individual and its cage mates had circulating antibodies that were type-specific for this calicivirus. The agent was antigenically different from 30 other calicivirus serotypes and is tentatively designated primate calicivirus Pan paniscus type 1 (PCV-Pan 1).〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Smith, A W -- Skilling, D E -- Ensley, P K -- Benirschke, K -- Lester, T L -- New York, N.Y. -- Science. 1983 Jul 1;221(4605):79-81.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6304880" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antigen-Antibody Complex/immunology ; Antigens, Viral/immunology ; Caliciviridae/immunology/*isolation & purification/ultrastructure ; Cats ; Cattle ; Hominidae/*microbiology ; Humans ; Microscopy, Electron ; Picornaviridae Infections/*microbiology ; Swine
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 41
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1983-05-20
    Beschreibung: The feline leukemia virus (FeLV) frequently causes death by predisposing the host to acute infections by other pathogens rather than by inducing leukemia. In a previous study, cats infected with FeLV were found to have prolonged homograft rejection responses but there was no evidence that the humoral immune response was impaired. In the present study, the humoral response to the synthetic multichain polypeptide (L-tyrosine-L-glutamic acid)-poly-DL-alanine-poly-L-lysine, denoted (T.G)AL, was found to be significantly depressed in healthy cats that were naturally infected with FeLV compared to uninfected controls. In cats with persistent FeLV viremia the major antibody response to (T.G)AL, normally seen at days 9 to 14 after immunization, was both delayed and greatly reduced.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Trainin, Z -- Wernicke, D -- Ungar-Waron, H -- Essex, M -- CA-13885/CA/NCI NIH HHS/ -- CA-18216/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1983 May 20;220(4599):858-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6302837" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antibody Formation ; Cats ; Enzyme-Linked Immunosorbent Assay ; Graft Rejection ; Immune Tolerance ; Leukemia/*immunology ; Leukemia Virus, Feline ; Peptides/immunology ; Rodentia
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 42
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1983-11-25
    Beschreibung: It is a fundamental principle of vertebrate neuronal organization that sensory fibers are restricted to dorsal roots and motor fibers to ventral roots. Recent evidence, however, indicates that there are many sensory fibers in ventral roots. The present report shows that stimulation of these fibers activates neurons in the dorsal horn. This provides evidence at the single-cell level for the importance of ventral root afferents and provides an explanation for the clinical phenomenon of recurrent sensibility.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chung, J M -- Lee, K H -- Endo, K -- Coggeshall, R E -- NS 10161/NS/NINDS NIH HHS/ -- NS 11255/NS/NINDS NIH HHS/ -- NS 18830/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1983 Nov 25;222(4626):934-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6635665" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cats ; Electric Stimulation ; Microelectrodes ; Neurons, Afferent/*physiology ; Reaction Time ; Spinal Nerve Roots/*physiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 43
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1983-03-11
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Clarkson, A B Jr -- Mellow, G H -- AI 19015-02/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1983 Mar 11;219(4589):1238-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6402816" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Chagas Disease/*immunology ; Female ; Humans ; Lactation ; Pregnancy ; Rheumatoid Factor/*immunology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 44
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1983-08-12
    Beschreibung: Placental and fetal tissues from 46 human pregnancies were cultured and cytogenetically analyzed in an attempt to document the existence of chromosomal mosaicism confined strictly to tissues of extraembryonic origin. In two gestations in which chromosomal mosaicism was found, it was expressed exclusively in placental chorionic cells and was not detected in cells derived from the embryo proper. This demonstration of confined chorionic mosaicism may have implications for the understanding of the fetoplacental unit and for prenatal diagnosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kalousek, D K -- Dill, F J -- New York, N.Y. -- Science. 1983 Aug 12;221(4611):665-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6867735" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amnion/physiology ; Chorion/physiology ; Chromosomes, Human ; Female ; Fetal Blood/physiology ; Fetal Growth Retardation/genetics ; Fetus/physiology ; Humans ; Male ; *Mosaicism ; Placenta/*physiology ; Pregnancy
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 45
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1983-01-07
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1983 Jan 7;219(4580):42-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6849114" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acquired Immunodeficiency Syndrome/genetics/*transmission ; Blood Transfusion/adverse effects ; Child ; Child, Preschool ; Female ; Hemophilia A/*complications ; Humans ; Infant ; Infant, Newborn ; Male ; Pregnancy
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 46
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1983-01-07
    Beschreibung: The immediate induction of the full complement of maternal behavior in nonpregnant ewes primed with estrogen and progesterone has been obtained after 5 minutes of vaginal-cervical stimulation. A similar period of such stimulation given to recently parturient ewes, after the development of selective bonding to their own lambs, reversed their rejection behavior of alien lambs and produced a state of plasticity in maternal behavior, such that ewes receiving vaginal stimulation would accept and adopt alien lambs. These findings implicate vaginal-cervical stimulation as playing a role in the onset of maternal behavior.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Keverne, E B -- Levy, F -- Poindron, P -- Lindsay, D R -- New York, N.Y. -- Science. 1983 Jan 7;219(4580):81-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6849123" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Estradiol/pharmacology ; Female ; *Maternal Behavior ; Pregnancy ; Progesterone/pharmacology ; Sheep/*physiology ; Time Factors ; Vagina/*physiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 47
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1983-09-16
    Beschreibung: A striking paradox of the rapid eye movement periods of active sleep, which are typically characterized by the exacerbation of somatomotor atonia, is the occurrence of muscle twitches and jerks. The purpose of this study was to examine the specific motoneuron membrane potential processes responsible for these myoclonic patterns of activity. In lumbar motoneurons, examined intracellularly in the cat prepared for long-term study, these processes consisted of recurrent depolarizing membrane potential shifts and spontaneous action potentials that were either full-sized or of partial amplitude. In addition, the invasion of antidromically induced spikes into the soma was often blocked. Hyperpolarizing potentials were evident in the intervals between spontaneous spikes. Hyperpolarization was also observed immediately before depolarization and spike activity, in contrast to the gradual depolarization of the motoneuron membrane potential that always occurred during wakefulness. Thus, during rapid eye movement periods, in conjunction with muscle twitches and jerks, a strong excitatory input is superimposed on a background of inhibitory input. The unique patterns of membrane potential change that arise thus seem to result from the simultaneous coactivation of excitatory and inhibitory processes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chase, M H -- Morales, F R -- New York, N.Y. -- Science. 1983 Sep 16;221(4616):1195-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6310749" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Action Potentials ; Animals ; Cats ; Membrane Potentials ; *Motor Activity ; Motor Neurons/*physiology ; *Sleep, REM ; Synaptic Transmission
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 48
    Publikationsdatum: 1983-12-09
    Beschreibung: Antisera to human syncytiotrophoblast microvillous cell surface membranes from different placentas are cytotoxic for lymphocytes from some people but not others, demonstrating the presence of allotypic trophoblast-lymphocyte cross-reactive (TLX) antigens. Exploratory principal components factor analysis, performed on limited data consisting of 300 cytotoxic reactions produced by ten separate trophoblast antisera on a panel of lymphocytes from 30 random donors, suggested the presence of three distinct TLX antigen groupings. It is proposed that such TLX alloantigens are central in establishing maternal recognition and protection of the blastocyst, and that lack of recognition results in implantation failure and spontaneous abortion. These findings are compatible with contemporary results of immunotherapy to prevent recurrent spontaneous abortions, and their implications extend to other conditions of allogeneic coexistence, such as organ transplantation and the tumor-host relationship.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McIntyre, J A -- Faulk, W P -- Verhulst, S J -- Colliver, J A -- New York, N.Y. -- Science. 1983 Dec 9;222(4628):1135-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6648525" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Antigens, Surface/*immunology ; Cross Reactions ; Cytotoxicity, Immunologic ; Female ; Humans ; Lymphocytes/*immunology ; Maternal-Fetal Exchange ; Pregnancy ; Trophoblasts/*immunology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 49
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1983-07-08
    Beschreibung: Rearing cats in the dark extends the critical period for development of visual cortical neurons, which indicates that the experience of visual input is necessary to begin the developmental process. A single brief pulse of visual input (6 hours) during a period of dark-rearing eliminates delayed development in the visual cortex. Light therefore seems to rapidly trigger the developmental process, and once triggered, that process runs to completion in the absence of further input.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mower, G D -- Christen, W G -- Caplan, C J -- EY 03335/EY/NEI NIH HHS/ -- HD 06276/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1983 Jul 8;221(4606):178-80.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857278" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cats ; Darkness ; *Neuronal Plasticity ; Time Factors ; Vision, Ocular/physiology ; Visual Cortex/growth & development/*physiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 50
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1983-07-22
    Beschreibung: The responses of superior colliculus cells to a given sensory stimulus were influenced by the presence or absence of other sensory cues. By pooling sensory inputs, many superior colliculus cells seem to amplify the effects of subtle environmental cues in certain conditions, whereas in others, responses to normally effective stimuli can be blocked. The observations illustrate the dynamic, interactive nature of the multisensory inputs which characterize the deeper laminae of the superior colliculus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Meredith, M A -- Stein, B E -- EY 04119/EY/NEI NIH HHS/ -- NS 06838/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1983 Jul 22;221(4608):389-91.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6867718" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acoustic Stimulation ; Animals ; Cats ; Cricetinae ; Neural Inhibition ; Photic Stimulation ; Sensory Thresholds ; Superior Colliculi/cytology/*physiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 51
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1983-05-13
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G -- New York, N.Y. -- Science. 1983 May 13;220(4598):705.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6403987" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine ; Adult ; Animals ; Cats ; *Disease Models, Animal ; Haplorhini ; Humans ; Male ; Parkinson Disease/physiopathology ; Parkinson Disease, Secondary/*chemically induced ; Pyridines/*adverse effects ; Rats ; Substantia Nigra/drug effects/physiopathology ; Swine
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 52
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1983-07-29
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G -- New York, N.Y. -- Science. 1983 Jul 29;221(4609):441.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6408734" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Female ; Fetus/*surgery ; Haplorhini ; Humans ; Neural Tube Defects/*surgery ; Pregnancy
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 53
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1983-07-29
    Beschreibung: Pregnant rats received 2-[14C]deoxy-D-glucose (2DG) intravenously on the last day of gestation, and their fetuses were delivered 1 hour later by cesarean section. Fetal brains showed high 2DG uptake spread throughout the accessory olfactory bulb and little or no differential uptake in the main olfactory bulb. These findings demonstrate that functional activity occurs in the accessory olfactory bulb in utero and suggest that the accessory olfactory system may be the pathway by which fetal rats detect the odor quality of their intrauterine milieu.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pedersen, P E -- Stewart, W B -- Greer, C A -- Shepherd, G M -- F32-NS06978/NS/NINDS NIH HHS/ -- NS 16993/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1983 Jul 29;221(4609):478-80.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6867725" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Autoradiography ; Brain/radionuclide imaging ; Deoxyglucose/metabolism ; Female ; Fetus/*physiology ; Olfactory Bulb/physiology/radionuclide imaging ; Pregnancy ; Rats ; Rats, Inbred Strains ; Smell/*physiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 54
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1983-03-25
    Beschreibung: Quantitative electron microscopic analysis reveals 2.85 million retinal axons in fetal rhesus monkeys--a number that is more than twice the 1.2 million present in the adult. More than 1 million supernumerary optic axons are eliminated before birth, simultaneously with the segregation of inputs from the two eyes into separate layers of the lateral geniculate nucleus. Selective elimination of optic axons may not only play a role in the segregation of binocular visual connections but, secondarily, may establish the ratio of crossed and uncrossed retinogeniculate projections.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rakic, P -- Riley, K P -- EY02593/EY/NEI NIH HHS/ -- RR00168/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1983 Mar 25;219(4591):1441-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6828871" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Axons/*physiology/ultrastructure ; Female ; Fetus/physiology ; Macaca mulatta ; Optic Nerve/*embryology/ultrastructure ; Pregnancy ; Retina/*embryology/ultrastructure
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 55
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    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1983-05-27
    Beschreibung: Deoxyglucose labeled with carbon-14 was used in studying the utilization of glucose in the suprachiasmatic nuclei of fetal rats. The results showed that an entrainable circadian clock is present in the suprachiasmatic nuclei during fetal development and that the maternal circadian system coordinates the phase of the fetal clock to environmental lighting conditions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Reppert, S M -- Schwartz, W J -- 1 K07 NS 00672/NS/NINDS NIH HHS/ -- HD 14427/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1983 May 27;220(4600):969-71.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6844923" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Circadian Rhythm ; Darkness ; Female ; Fetus/*physiology ; Gestational Age ; Glucose/metabolism ; Lighting ; *Maternal-Fetal Exchange ; Pregnancy ; Rats ; Suprachiasmatic Nucleus/metabolism
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 56
    Publikationsdatum: 1983-07-22
    Beschreibung: Isolated umbilical arteries and veins, obtained from normal women at the end of pregnancy, were incubated in krebs-Ringer bicarbonate solution and exposed to magnesium at concentrations ranging from 0 to 9.6 millimoles per liter. The basal tension of the vessels increased when magnesium was withdrawn and decreased when the concentration of magnesium was raised. Absence of magnesium in the medium significantly potentiated the contractile response of the vessels to bradykinin, angiotensin II, serotonin, and prostaglandin F2 alpha. It appears that magnesium deficiency may be responsible for spasms of umbilical and placental vasculature. Our findings may provide a rationale for why magnesium sulfate is an effective therapy in preeclamptic syndromes in pregnant women.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Altura, B M -- Altura, B T -- Carella, A -- HL 18015/HL/NHLBI NIH HHS/ -- HL 29600/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1983 Jul 22;221(4608):376-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6867714" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Female ; Fetal Growth Retardation/*etiology ; Humans ; Hypertension/*etiology ; Magnesium Deficiency/*complications ; Pre-Eclampsia/*etiology ; Pregnancy ; Pregnancy Complications, Cardiovascular/*etiology ; Spasm/etiology ; Umbilical Arteries/physiopathology ; Umbilical Cord/*blood supply/physiopathology ; Umbilical Veins/physiopathology ; Vasoconstrictor Agents/pharmacology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 57
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1983-06-17
    Beschreibung: Comparisons of the relation between brain and body weights among extant mammals show that brain sizes have not increased as much as body sizes. Interspecific increases in brain and body size appear to occur at the same rate, however, when the amount of available energy is taken into account. After this adjustment, brains of primates are slightly larger than expected from the overall mammalian data, but primates also use a larger proportion of their total energy reserves for their brains. Analyses of relative brain size must take into account the requirements that the metabolically active brain has for the body.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Armstrong, E -- New York, N.Y. -- Science. 1983 Jun 17;220(4603):1302-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6407108" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Basal Metabolism ; Body Weight ; Cats ; Chiroptera/anatomy & histology ; Dogs ; Haplorhini/anatomy & histology ; Humans ; Mammals/*anatomy & histology/metabolism ; Primates/anatomy & histology ; Rats ; Species Specificity
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 58
    Publikationsdatum: 1983-03-04
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Enns, M P -- Wilson, M W -- Grinker, J A -- Faust, I M -- Jones, A P -- Friedman, M I -- AM20508/AM/NIADDK NIH HHS/ -- AM27980/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1983 Mar 4;219(4588):1093-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6681680" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adipose Tissue/cytology ; Animals ; Body Weight ; Dietary Fats ; Energy Intake ; Female ; Male ; *Nutritional Physiological Phenomena ; Pregnancy ; *Pregnancy, Animal ; Rats
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 59
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1983-05-20
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1983 May 20;220(4599):806-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6601821" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acquired Immunodeficiency Syndrome/etiology/*microbiology ; Animals ; Cats ; Humans ; *Retroviridae/isolation & purification ; T-Lymphocytes/microbiology ; Tumor Virus Infections/complications/*microbiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 60
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1983-09-09
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G -- New York, N.Y. -- Science. 1983 Sep 9;221(4615):1031-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6879201" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Biopsy ; Chorionic Villi/*ultrastructure ; Female ; Humans ; Placenta/*ultrastructure ; Pregnancy ; *Pregnancy Trimester, First ; *Prenatal Diagnosis
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 61
    Publikationsdatum: 1983-04-29
    Beschreibung: Urine of the human fetus stimulated prostaglandin biosynthesis in vitro by increasing the conversion of arachidonic acid into prostaglandins. The stimulatory activity in urine from fetuses delivered at term after labor of spontaneous onset was greater than that in urine from fetuses delivered by cesarean section at term before the onset of labor. Such stimulation of prostaglandin biosynthesis by the fetal membranes, by way of a substance released into the urine and thence into amniotic fluid, could serve as a signal for the initiation of parturition.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Strickland, D M -- Saeed, S A -- Casey, M L -- Mitchell, M D -- 5-P50-HD11149/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1983 Apr 29;220(4596):521-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6573023" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adult ; Dinoprostone ; Extraembryonic Membranes/physiology ; Female ; Fetus/*physiology ; Humans ; *Labor Onset ; *Labor, Obstetric ; Male ; Pregnancy ; Prostaglandins/*biosynthesis ; Prostaglandins E/biosynthesis ; *Urine
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 62
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1983-07-29
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sun, M -- New York, N.Y. -- Science. 1983 Jul 29;221(4609):440-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6867721" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Federal Government ; Female ; *Government Regulation ; Humans ; Neural Tube Defects/*diagnosis ; Pregnancy ; Pregnant Women ; *Prenatal Diagnosis/instrumentation ; Risk Assessment ; United States ; United States Food and Drug Administration ; Administration on 17 June to approve the wider use of diagnostic kits for the ; detection of fetal neural tube defects. The American College of Obstetricians and ; Gynecologists and the American Academy of Pediatrics are among the critics who ; favor tighter restrictions on use of the kits, which measure levels of ; alpha-fetoprotein in serum samples taken from expectant mothers, on the grounds ; that false positive results are common, necessitating careful quality control ; monitoring of physicians, manufacturers, and laboratories performing the test.
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 63
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1983-09-30
    Beschreibung: Treatment with combinations of synthetic prostaglandins, one with an ovarian site of action and one with a uterine site of action, terminated pregnancy in all rhesus monkeys given the injection on day 28 of fertile menstrual cycles. Single prostaglandins, even at higher doses, interrupted pregnancy in only one-third of the monkeys. The most effective treatment, 5-oxa-17-phenyl-18,19,20-trinor prostaglandin F1 alpha methyl ester plus 9-deoxo-16,16-dimethyl-9-methylene prostaglandin E2, promptly intercepted early pregnancy after a single administration and without side effects.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilks, J W -- New York, N.Y. -- Science. 1983 Sep 30;221(4618):1407-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6612350" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Abortifacient Agents ; *Abortifacient Agents, Nonsteroidal ; *Abortion, Induced ; Animals ; Chorionic Gonadotropin/pharmacology ; Corpus Luteum/drug effects ; Drug Therapy, Combination ; Female ; Pregnancy ; Progesterone/blood ; Prostaglandins E, Synthetic/*administration & dosage/pharmacology ; Prostaglandins F, Synthetic/*administration & dosage/pharmacology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 64
    Publikationsdatum: 1983-07-08
    Beschreibung: Inbred BALB/c females were mated and subsequently exposed in a divided cage to "stimulus" males or females whose H-2 type was similar or dissimilar to the stud male's. The incidence of pregnancy blocking was considerably higher when stud and stimulus males differed in H-2 type than when they did not. Similar results were obtained with urine samples of H-2 identical and nonidentical males. Females exposed after mating to other females whose H-2 type differed from the stud male, under the same experimental conditions, also showed an appreciable incidence of pregnancy block. It is therefore concluded that chemosensory recognition of H-2 types affects the reproductive hormonal status of the pregnant female.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yamazaki, K -- Beauchamp, G K -- Wysocki, C J -- Bard, J -- Thomas, L -- Boyse, E A -- CA-29979/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1983 Jul 8;221(4606):186-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857281" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Embryonic Development ; Estrus ; Female ; H-2 Antigens/*immunology ; Homozygote ; Male ; Mice ; Mice, Inbred BALB C ; Pregnancy ; *Pregnancy, Animal
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 65
    Publikationsdatum: 1982-11-12
    Beschreibung: Female athymic nude mice and their phenotypically normal littermates were exposed transplacentally to ethylnitrosourea. Skin tumors (papillomas and sebaceous adenomas) developed on the nude mice with an almost tenfold greater incidence than on their haired littermates. Skin tumors were also induced on nude mice but not haired controls by direct intraperitoneal treatment with ethylnitrosourea. These results indicate that nude mice have higher than normal susceptibility to carcinogenesis under some circumstances.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Anderson, L M -- Last-Barney, K -- Budinger, J M -- CA 08748/CA/NCI NIH HHS/ -- CA 22498/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1982 Nov 12;218(4573):682-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7134965" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adenoma/chemically induced ; Animals ; *Ethylnitrosourea ; Female ; *Maternal-Fetal Exchange ; Mice ; Mice, Nude/*physiology ; Neoplasms, Experimental/chemically induced ; *Nitrosourea Compounds ; Pregnancy ; Sebaceous Gland Neoplasms/chemically induced ; Skin Neoplasms/*chemically induced
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 66
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1982-10-29
    Beschreibung: Exposure of rats to cimetidine during intrauterine life and the immediate neonatal period results in hypoandrogenization in adult life with decreased weights of androgen-dependent tissues and decreased concentrations of testosterone. Moreover, sexual behavior patterns in adult life are disturbed as shown by a lack of sexual motivation and decreased performance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Anand, S -- Van Thiel, D H -- New York, N.Y. -- Science. 1982 Oct 29;218(4571):493-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7123252" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Abnormalities, Drug-Induced/*etiology ; Animals ; Animals, Suckling ; Cimetidine/metabolism/*toxicity ; Female ; Guanidines/*toxicity ; Male ; Pregnancy ; Pregnancy, Animal/drug effects ; Rats ; Sex Differentiation/*drug effects ; Sexual Behavior, Animal/drug effects
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 67
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1982-10-08
    Beschreibung: Rats whose pregnancies were surgically terminated on day 17 of gestation were injected with morphine, morphine plus naloxone hydrochloride, or saline, and then tested for maternal responsiveness toward foster young. Morphine treatment alone significantly disrupted the rate of onset and quality of maternal responsiveness. Concurrent administration of naloxone to morphine-injected rats reinstated the rapid onset of behavioral responsiveness toward foster young, such that the responsiveness of the rats treated with both morphine and naloxone was indistinguishable from that shown by saline-injected controls. The disruptive effects of morphine did not appear to result from a general reduction in activity levels as measured in an open-field apparatus. These findings suggest that the normal onset and maintenance of maternal behavior in the rat may be regulated by endogenous opiates.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bridges, R S -- Grimm, C T -- New York, N.Y. -- Science. 1982 Oct 8;218(4568):166-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7123227" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Behavior, Animal/*drug effects ; Drug Antagonism ; Female ; Morphine/*pharmacology ; Naloxone/*pharmacology ; Pregnancy ; Rats ; Rats, Inbred Strains
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 68
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    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1982-10-01
    Beschreibung: Mouse embryos were grown successfully in vitro from the blastocyst stage to the limb bud stage. Mouse blastocysts grown in vitro for 10 days showed blood circulation in the yilk sac, forelimb buds, and the primordia of liver, pancreas, and lungs. These characteristics are indicative of a developmental stage equivalent to one-half of the total gestation period in utero. Improvements in culture conditions from days 7 to 9 have made it feasible to culture mouse blastocysts beyond the early somite stage.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, L T -- Hsu, Y C -- AM 19535/AM/NIADDK NIH HHS/ -- AM 28550/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1982 Oct 1;218(4567):66-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7123220" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Blastocyst/*physiology ; Cell Differentiation ; Culture Media ; Culture Techniques ; Embryo, Mammalian/*physiology ; Female ; Fetal Blood ; Humans ; Mice ; Pregnancy ; Yolk Sac/physiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 69
    facet.materialart.
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1982-01-15
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Khanna, S M -- Leonard, D G -- 5 K04 NS 00292/NS/NINDS NIH HHS/ -- 5 R01 NS 03654/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1982 Jan 15;215(4530):305-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7053580" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Basilar Membrane/*physiology ; Cats ; Cochlea/*physiology ; Ear, Inner/*physiology ; Hearing/*physiology ; Vibration
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 70
    Publikationsdatum: 1982-01-01
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Klein, N W -- Plenefisch, J D -- Carey, S W -- Fredrickson, W T -- Sackett, G P -- Burbacher, T M -- Parker, R M -- HD02774/HD/NICHD NIH HHS/ -- HD08633/HD/NICHD NIH HHS/ -- RR00166/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1982 Jan 1;215(4528):66-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7053560" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Abortion, Veterinary/*blood ; Animals ; Congenital Abnormalities/*etiology ; Ectogenesis ; Female ; Macaca nemestrina/blood ; Mice ; Pregnancy ; Rats
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 71
    Publikationsdatum: 1982-10-08
    Beschreibung: A synthetic antagonist of luteinizing hormone-releasing hormone blocked ovulation in rats in a dose-dependent manner when given by gavage on the afternoon of proestrus. Ovulation was delayed for at least 1 day in all animals given 2 milligrams of antogonist and in some of the animals treated with 1 or 0.5 milligram. Oral administration of 2 milligrams also blocked the preovulatory surge of luteinizing hormone. This demonstration that antagonists of luteinizing hormone-releasing hormone can have oral antiovulatory activity clearly enhances their therapeutic potential.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nekola, M B -- Horvath, A -- Ge, L J -- Coy, D H -- Schally, A V -- HD-0-2831/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1982 Oct 8;218(4568):160-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6750790" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Administration, Oral ; Animals ; Female ; Gonadotropin-Releasing Hormone/*analogs & derivatives/pharmacology ; Luteinizing Hormone/secretion ; Ovulation/*drug effects ; Pregnancy ; Proestrus/drug effects ; Rats ; Rats, Inbred Strains
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 72
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1982-04-09
    Beschreibung: A riboflavin carrier protein isolated from chickens cross-reacts with a gestation-specific rodent carrier for riboflavin. Active immunization of female rats of proved fertility with the purified chicken carrier protein completely yet reversibly suppressed early pregnancy without impairing implantation per se. Concurrently there were no discernible adverse effects on maternal health in terms of weight gain, vitamin status, and fertility.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Murty, C V -- Adiga, P R -- New York, N.Y. -- Science. 1982 Apr 9;216(4542):191-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7063879" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antibodies ; Carrier Proteins/*immunology ; Female ; Fetal Resorption/immunology ; Flavins/blood ; Glutathione Reductase/blood ; Immunization ; *Membrane Transport Proteins ; Pregnancy ; *Pregnancy, Animal ; Progesterone/blood ; Rats
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 73
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    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1982-11-12
    Beschreibung: When ethanol was administered intravenously to pregnant monkeys, a transient but marked collapse of umbilical vasculature was observed uniformly within about 15 minutes. The ethanol-induced impairment of umbilical circulation produced severe hypoxia and acidosis in the fetus; recovery occurred during the succeeding hour. This striking interruption of feto-placental circulation may explain one of the mechanisms of mental retardation, a frequent manifestation in children afflicted with fetal alcohol syndrome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mukherjee, A B -- Hodgen, G D -- New York, N.Y. -- Science. 1982 Nov 12;218(4573):700-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6890235" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acetaldehyde/blood ; Animals ; Disease Models, Animal ; Ethanol/blood/*pharmacology ; Female ; Fetal Alcohol Spectrum Disorders/*etiology ; Fetal Distress/*chemically induced ; Macaca fascicularis ; Macaca mulatta ; Pregnancy ; Pregnancy, Animal/*drug effects ; Umbilical Cord/*drug effects
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 74
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1982-03-05
    Beschreibung: Norethisterone (17 alpha-ethynyl-19-nortestosterone) is an effective irreversible inhibitor of estrogen synthetase (aromatase), the enzyme responsible for the conversion of androgens to estrogens, even at a 2 X 10(-6) molar concentration. This irreversible inactivation, which is directed toward the active site of aromatase and requires the cofactor-reduced nicotinamide adenine dinucleotide phosphate, is both time- and concentration-dependent. Ethisterone (17 alpha-ethynyltestosterone), in contrast, is not a suicide inhibitor of aromatase even at concentrations of 10(-4) molar.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Osawa, Y -- Yarborough, C -- HDO4945/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1982 Mar 5;215(4537):1249-51.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7058343" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Aromatase Inhibitors ; Binding Sites/drug effects ; Contraceptives, Oral/*pharmacology ; Estrogens/*biosynthesis ; Female ; Humans ; Kinetics ; Microsomes/enzymology ; Norethindrone/*pharmacology ; Oxidoreductases/*antagonists & inhibitors ; Placenta/enzymology ; Pregnancy
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 75
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1982-07-23
    Beschreibung: The sexual behavior of rhesus monkeys in 15 male-female pairings was observed in both a large and a small area during the follicular and luteal phases of the female's cycle. Males ejaculated in all tests at the follicular phase of the female's cycle and in 53 percent of tests at the luteal phase. However, a significant decline in ejaculation during tests at the luteal phase occurred in the large, but not in the small area. Thus the degree to which the pair's sexual behavior was influenced by the female's hormonal state depended on the spatial conditions of the test.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wallen, K -- MH35835/MH/NIMH NIH HHS/ -- RR-00165/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1982 Jul 23;217(4557):375-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7201164" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Copulation ; Ejaculation ; *Estrus ; Female ; Macaca/*physiology ; Macaca mulatta/*physiology ; Male ; Pregnancy ; Proestrus ; Sexual Behavior, Animal/*physiology ; Social Behavior ; *Spatial Behavior
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 76
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    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1982-12-24
    Beschreibung: Spectral analysis of spontaneous fluctuations in human fetal movement revealed strong oscillations at frequencies between 0.24 and 0.90 cycle per minute, which are much higher than those of the cyclic alternation of quiet and active states in the fetus and neonate. Oscillations at frequencies up to 2.88 cycles per minute were also detected, but they were usually much weaker. The prominent peaks in the fetal movement spectra are in the frequency range of recently reported neonatal motor rhythms, and indicate the existence of a cyclic process controlling spontaneous motor output that oscillates near one cycle per minute and begins to function in utero.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Robertson, S S -- Dierker, L J -- Sorokin, Y -- Rosen, M G -- M01RR00210/RR/NCRR NIH HHS/ -- P50HD11089/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1982 Dec 24;218(4579):1327-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7146916" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Female ; Fetus/*physiology ; Humans ; *Movement ; Pregnancy ; Pregnancy Trimester, Third ; Spectrum Analysis/methods ; Time Factors
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 77
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    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1982-03-19
    Beschreibung: Laetrile administered orally ot pregnant hamsters caused skeletal malformations in the offspring, but intravenous laetrile filed to result in embryopathic effects. Oral laetrile significantly increased in situ cyanide concentrations, while intravenous laetrile did not. Thiosulfate administration protected embryos from the teratogenic effects of oral laetrile. The embryopathic effects of oral laetrile appear to be due to cyanide released by bacterial beta-glucosidase activity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Willhite, C C -- New York, N.Y. -- Science. 1982 Mar 19;215(4539):1513-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7063858" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Abnormalities, Drug-Induced/*etiology ; Administration, Oral ; Amygdalin/administration & dosage/metabolism/*toxicity ; Animals ; Cricetinae ; Female ; Injections, Intravenous ; Pregnancy
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 78
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    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1982-08-13
    Beschreibung: The input-output properties of interneurons mediating spinal reflexes were investigated by extracellularly recording the response of interneurons to excitation from muscle receptors in the ankle extensor muscles of decerebrated, spinal cats. A population ofinterneurons in the intermediate region ofthe spinal cord is potently excited by increases in muscle force. Unlike the discharge of Golgi tendon organs, which accurately encodes moment-to-moment variations in the force of a single muscle, the discharge of these interneurons depends in a dynamic and usually nonlinear way on the force in several muscles. Powerful input from unidentified mechanoreceptors in muscle, presumably free nerve endings, is at least partly responsible for these properties. These force-sensitive interneurons are more likely to mediate clasp knife-type inhibition than simple negative force feedback.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cleland, C L -- Rymer, W Z -- Edwards, F R -- 5T32GM07350/GM/NIGMS NIH HHS/ -- NS14959/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1982 Aug 13;217(4560):652-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7089586" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cats ; Evoked Potentials ; Golgi-Mazzoni Corpuscles/physiology ; In Vitro Techniques ; Interneurons/*physiology ; Mechanoreceptors/physiology ; Motor Neurons/physiology ; Muscle Contraction ; Muscles/innervation ; *Proprioception ; Reflex, Stretch ; Spinal Cord/*physiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 79
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1982-03-05
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Frisch, R E -- New York, N.Y. -- Science. 1982 Mar 5;215(4537):1272-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7199206" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amenorrhea/*physiopathology ; Female ; Humans ; *Lactation ; *Nutritional Physiological Phenomena ; *Postpartum Period ; Pregnancy
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 80
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    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1982-03-26
    Beschreibung: Morphine, methadone, meperidine, fentanyl, and clonidine rapidly depressed transmission through sympathetic preganglionic neurons in cats with the spinal cord transected. Naloxone promptly antagonized this effect of the opiates but not that of clonidine which was reversed by alpha 2-adrenergic receptor antagonists. The independent depression of preganglionic neurons by clonidine may contribute to the ability of this drug to depress the symptoms of opiate withdrawal that are characterized by sympathetic hyperactivity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Franz, D N -- Hare, D B -- McCloskey, K L -- GM-07579/GM/NIGMS NIH HHS/ -- HL-24085/HL/NHLBI NIH HHS/ -- RR-05428/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1982 Mar 26;215(4540):1643-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6280276" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cats ; Clonidine/*pharmacology/therapeutic use ; Evoked Potentials/drug effects ; Humans ; Narcotics/pharmacology ; Receptors, Drug/drug effects ; Reflex/drug effects ; Spinal Cord/cytology ; Structure-Activity Relationship ; Substance Withdrawal Syndrome/*drug therapy ; Sympathetic Nervous System/*drug effects ; Synaptic Transmission/*drug effects
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 81
    Publikationsdatum: 1982-03-12
    Beschreibung: The concentration of oxytocin receptors increased in the myometrium of pregnant women and reached maximum levels in early labor. Concentrations of oxytocin receptors were also high in the decidua and reached a maximum at parturition. In vitro, prostaglandin production by the decidua, but not by the myometrium, was increased by the addition of oxytocin. Oxytocin may therefore stimulate uterine contractions by acting both directly on the myometrium and indirectly on decidual prostaglandin production. Oxytocin receptors are probably crucial for the onset of human labor, and the stimulus for the increase in uterine prostaglandins may be oxytocin originating from the fetus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fuchs, A R -- Fuchs, F -- Husslein, P -- Soloff, M S -- Fernstrom, M J -- HD8406/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1982 Mar 12;215(4538):1396-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6278592" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Decidua/physiology ; Female ; Humans ; *Labor, Obstetric ; Myometrium/physiology ; Oxytocin/*physiology ; Pregnancy ; Prostaglandins E/biosynthesis ; Prostaglandins F/biosynthesis ; Receptors, Cell Surface/*physiology ; Uterus/*physiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 82
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    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1982-06-11
    Beschreibung: In paraplegics and quadriplegics a profound paralysis of skeletal muscles occurs below the level of the spinal lesion. Unexplained in this state is the development of an overactive external urethral sphincter, which interferes with emptying of the bladder and may lead to infection of the urinary tract. Studies of cats show that the discharge of motoneurons causing this contraction has all the characteristics of a flexor reflex.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jolesz, F A -- Cheng-Tao, X -- Ruenzel, P W -- Henneman, E -- New York, N.Y. -- Science. 1982 Jun 11;216(4551):1243-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7200635" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cats ; Disease Models, Animal ; Male ; Motor Neurons/physiology ; Paraplegia/*physiopathology ; Reflex/physiology ; Urethra/*innervation/physiopathology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 83
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    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1982-05-07
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kline, J -- New York, N.Y. -- Science. 1982 May 7;216(4546):564.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7071603" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Alcoholic Beverages/*adverse effects ; Female ; Humans ; Pregnancy ; Pregnancy Complications/*chemically induced
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 84
    Publikationsdatum: 1982-03-26
    Beschreibung: Multiple interspecies differences were detected between humans and seven other mammals in 15 of the 24 metabolites measured in the intact crystalline lens and lens perchloric acid extracts. Generally, the number of statistically significant metabolite differences among the various species, relative to the human, increase in the following order: cat or approximately dog greater than pig greater than rat greater than sheep greater than rabbit greater than cow.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kopp, S J -- Glonek, T -- Greiner, J V -- New York, N.Y. -- Science. 1982 Mar 26;215(4540):1622-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7071581" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adenine Nucleotides/metabolism ; Animals ; Carbohydrate Metabolism ; Cats ; Choline/metabolism ; Dogs ; Humans ; Lens, Crystalline/*metabolism ; Magnetic Resonance Spectroscopy ; Phosphocreatine/metabolism ; Rabbits ; Rats ; Species Specificity
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 85
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1982-02-26
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Logeat, F -- Sartor, P -- Hai, M T -- Milgrom, E -- New York, N.Y. -- Science. 1982 Feb 26;215(4536):1134-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7063848" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Embryo Implantation ; Endometrium/*metabolism ; Female ; Pregnancy ; Rats ; Receptors, Estrogen/*metabolism
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 86
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1982-06-25
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maugh, T H 2nd -- New York, N.Y. -- Science. 1982 Jun 25;216(4553):1400.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6124035" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Acetylmuramyl-Alanyl-Isoglutamine/*analogs & derivatives ; Alanine/analysis ; Animals ; Cats ; Diaminopimelic Acid/analysis ; Glutamates/analysis ; Glutamic Acid ; Glycopeptides/*urine ; Humans ; Intestines/microbiology ; Muramic Acids/analysis ; Polysaccharides, Bacterial/analysis ; Rabbits ; Rats ; Sleep/*drug effects
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 87
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1982-07-09
    Beschreibung: Prolactin administration reportedly increases blood pressure in rats and rabbits. To study the effects of prolactin deficiency on blood pressure, rats were given saline, normal rabbit serum, or rabbit antiserum to rat prolactin on postnatal days 2 to 5. Both males and females given antiserum had significantly lower blood pressure at 14 weeks than rats given saline or normal rabbit serum. Blood pressure differences between females given antiserum and females given saline disappeared during and following pregnancy. The antiserum also lowered the concentration of prolactin in plasma 49 percent in males and decreased the prolactin response to ether stress in both sexes. These results suggest that endogenous prolactin is involved in blood pressure regulation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mills, D E -- Buckman, M T -- Peake, G T -- New York, N.Y. -- Science. 1982 Jul 9;217(4555):162-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7089550" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Animals, Newborn ; *Blood Pressure ; Female ; Immune Sera/pharmacology ; Male ; Pregnancy ; Pregnancy, Animal ; Prolactin/blood/immunology/*physiology ; Rabbits ; Rats ; Rats, Inbred Strains ; Sex Characteristics ; Sodium Chloride/pharmacology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 88
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1982-04-02
    Beschreibung: One of six monoclonal antibodies raised against purified human placental alkaline phosphatase cross-reacts with the adult and fetal forms of intestinal alkaline phosphatase. The placental and intestinal enzymes are nonallelic. A new electrophoretic titration procedure was used to assess the relative reactivities of the different enzymes with the antibody. The placental enzyme was the most reactive. However, the adult intestinal enzyme showed greater reactivity than the fetal enzyme. The determinants to which the antibody binds on these three forms of alkaline phosphatase presumably differ in their detailed molecular configurations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gogolin, K J -- Wray, L K -- Slaughter, C A -- Harris, H -- GM07511/GM/NIGMS NIH HHS/ -- GM20138/GM/NIGMS NIH HHS/ -- GM27018/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1982 Apr 2;216(4541):59-61.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6175022" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Alkaline Phosphatase/genetics/*immunology ; Alleles ; Antibodies, Monoclonal/*immunology ; Antibody Specificity ; Cross Reactions ; Epitopes ; Female ; Glycoproteins/*immunology ; Humans ; Intestines/enzymology ; Placenta/enzymology ; Pregnancy
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 89
    Publikationsdatum: 1982-04-16
    Beschreibung: We studied the relationship between cerebral oxygen consumption and cerebral oxygen delivery (cerebral blood flow x arterial oxygen content) in fetal, newborn, and adult sheep, Relative to the amount of oxygen consumed, cerebral oxygen delivery in the fetus exceeds that in the lamb and adult by 70 percent. This may represent a protective advantage for the fetus or simply a necessary adaptation to the low arterial oxygen pressure in the intrauterine environment.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jones, M D Jr -- Rosenberg, A A -- Simmons, M A -- Molteni, R A -- Koehler, R C -- Traystman, R J -- HD-13830/HD/NICHD NIH HHS/ -- HL-10342/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1982 Apr 16;216(4543):324-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6801768" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Animals, Newborn/*physiology ; Brain/*blood supply/*embryology ; Carbon Dioxide/blood ; Female ; Oxygen/*blood ; Oxygen Consumption ; Pregnancy ; Sheep
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 90
    facet.materialart.
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1982-07-23
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G -- New York, N.Y. -- Science. 1982 Jul 23;217(4557):335.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7046049" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Abnormalities, Drug-Induced/*epidemiology ; Animals ; Clinical Trials as Topic ; Dicyclomine ; Doxylamine/*adverse effects ; Drug Combinations/adverse effects ; Female ; Heart Septal Defects, Ventricular/chemically induced ; Hernia, Diaphragmatic/chemically induced ; Humans ; Macaca ; Pregnancy ; Pyridines/*adverse effects ; Pyridoxine/*adverse effects ; Rats ; United States ; United States Food and Drug Administration
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 91
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    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1982-06-11
    Beschreibung: Single auditory nerve fibers in the cat were labeled intracellularly with horseradish peroxidase. The sample of fibers was selected to represent different response types over a wide range of characteristic frequencies. All 56 labeled neurons were found to be radial fibers innervating inner hair cells, suggesting that none of the single-unit data reported to date has been from the outer hair cell innervation. Differences in rates of spontaneous discharge and thresholds to tones among these labeled neurons were closely correlated with morphological differences in the caliber and location of their unmyelinated terminals on the body of the inner hair cell.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liberman, M C -- 2 P01 NS13126/NS/NINDS NIH HHS/ -- 5 P01 NS13126/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1982 Jun 11;216(4551):1239-41.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7079757" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Auditory Pathways/*cytology ; Cats ; Cochlea/cytology ; Horseradish Peroxidase ; Vestibulocochlear Nerve/*cytology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 92
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1982-09-10
    Beschreibung: The long-term, chronic, paralysis resulting from spinal cord injury in the cat has been reversed by the use of an alpha 2-adrenergic receptor agonist, clonidine. Administration of this drug resulted in "normalization" of sensory-motor and autonomic dysfunctions. Preliminary studies of the clonidine in humans with traumatically injured spinal cord indicate that autonomic dysreflexia can be controlled and spasticity minimized. The data suggest that biochemical and pharmacologic manipulation of receptors may ameliorate paralysis following traumatic injury to the spinal cord as well as to the brain and brainstem.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Naftchi, N E -- New York, N.Y. -- Science. 1982 Sep 10;217(4564):1042-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6126002" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adrenergic beta-Agonists ; Animals ; Blood Pressure/drug effects ; Cats ; Cell Membrane/physiology ; Clonidine/administration & dosage/*therapeutic use ; Humans ; Muscle Spasticity/drug therapy ; Neuronal Plasticity ; Neurons/physiology ; Receptors, Adrenergic/*physiology ; Receptors, Adrenergic, beta/*physiology ; Spinal Cord Injuries/*drug therapy
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 93
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    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1982-10-22
    Beschreibung: We injected horseradish peroxidase into single, physiologically identified, optic tract axons of X and Y cells in cats and studied their termination patterns in the lateral geniculate nucleus. All X cell axons innervate lamina A or A1 in narrow zones, and some sparsely innervate the medical interlaminar nucleus. All Y cell axons have broad terminal zones in laminae A and C (from the contralateral retina) or lamina A1 (if ipsilateral), and most innervate the medial interlaminar nucleus densely.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sur, M -- Sherman, S M -- EY 03038/EY/NEI NIH HHS/ -- New York, N.Y. -- Science. 1982 Oct 22;218(4570):389.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7123239" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Brain Mapping ; Cats ; Functional Laterality ; Geniculate Bodies/cytology ; Horseradish Peroxidase ; Retina/cytology ; Visual Pathways/*cytology
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    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 94
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1982-10-01
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1982 Oct 1;218(4567):6, 8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7123219" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Child ; Female ; Humans ; Iodine Radioisotopes/*adverse effects ; Nuclear Reactors ; Potassium Iodide/*therapeutic use ; Pregnancy ; Thyroid Gland/metabolism ; United States ; United States Food and Drug Administration
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    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 95
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1982-10-29
    Beschreibung: Pregnant Swiss Webster mice were fed a diet moderately deficient in zinc from day 7 of gestation until parturition. Offspring of these mice showed depressed immune function through 6 months of age. In addition, the second and third filial generations, all of which were fed only the normal control diet, continued to manifest reduced immunocompetence, although not to the same degree as in the first generation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beach, R S -- Gershwin, M E -- Hurley, L S -- New York, N.Y. -- Science. 1982 Oct 29;218(4571):469-71.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7123244" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antibody Formation ; Female ; Immune Tolerance ; Immunoglobulin M/analysis ; Immunologic Deficiency Syndromes/*embryology ; Mice ; Pregnancy ; Time Factors ; Zinc/*deficiency
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 96
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1982-03-26
    Beschreibung: The increasing availability and utilization of legal abortion in the United States has several important effects on public health in the 1970's. It reduced deaths and surgical complications among women of childbearing age; it made possible the development of safer surgical procedures for pregnancy termination; and it increased the provision of low-cost outpatient gynecologic services. There is some concern about potential adverse outcomes in future desired pregnancies and possibly higher risks of breast cancer in certain women.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cates, W Jr -- New York, N.Y. -- Science. 1982 Mar 26;215(4540):1586-90.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7071579" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Abortion, Legal/adverse effects/methods/*utilization ; Breast Neoplasms/etiology ; Costs and Cost Analysis ; Ethics, Medical ; Female ; Humans ; Pregnancy ; Professional Misconduct ; Risk Assessment ; United States ; the increased availability and utilization of abortion. The legalization of ; abortion has led to a decrease in deaths and surgical complications among women ; of childbearing age, the development of safer procedures for pregnancy ; termination, and the provision of low-cost outpatient services. Adverse outcomes ; in future pregnancies and an increase in breast cancer risk are two of the ; possible negative results of the increased abortion rate. Three graphs and a ; statistical table illustrate the article.
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 97
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1982-03-19
    Beschreibung: Pregnant rats underfed in the first 2 weeks of gestation had offspring with normal body weight at birth and weaning. However, starting at about 5 weeks of age the male offspring became hyperphagic and gained more weight than the controls. The female offspring did not overeat and did not become obese. Both male and female progeny showed increased fat cell size as adults. In males the epididymal and retroperitoneal fat pads were significantly enlarged nd adipocytes in these pads were hypertrophied. In females and fat pads were not enlarged, but adipocytes in the parametrial pads were hypertrophied.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jones, A P -- Friedman, M I -- AM-20022/AM/NIADDK NIH HHS/ -- RR 07048/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1982 Mar 19;215(4539):1518-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7063860" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adipose Tissue/*cytology ; Animals ; Female ; Gestational Age ; Nutrition Disorders/*complications ; Obesity/*etiology ; Pregnancy ; *Pregnancy, Animal ; Rats ; Sex Factors
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    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 98
    Publikationsdatum: 1982-01-15
    Beschreibung: Exposure of mice to the herbicide 2,4-dichlorophenyl-p-nitrophenyl ether during gestation produces abnormalities that are not readily apparent at birth but become obvious as the pups mature. By 2 weeks after birth there are severe intraorbital defects resulting from destruction of the Harderian glands behind the eyes. This effect is noticeable only postnatally because the Harderian gland does not grow or function until after birth.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gray, L E Jr -- Kavlock, R J -- Chernoff, N -- Ferrell, J -- McLamb, J -- Ostby, J -- New York, N.Y. -- Science. 1982 Jan 15;215(4530):293-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7053576" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Abnormalities, Drug-Induced/*pathology ; Animals ; Female ; Harderian Gland/abnormalities/*drug effects ; Lacrimal Apparatus/*drug effects ; Male ; Mice ; Phenyl Ethers/*toxicity ; Pregnancy ; Rats ; Thyroxine/physiology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 99
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1982-05-07
    Beschreibung: Exposure of rats to phenobarbital during late prenatal development decreased the concentration of testosterone in plasma and the brain during the late fetal, early postnatal, pubertal, and adult periods, By decreasing the production of testosterone in the brain during the period of sexual differentiation, phenobarbital may lead to sexual dysfunction in later life.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gupta, C -- Yaffe, S J -- Shapiro, B H -- GM-26222/GM/NIGMS NIH HHS/ -- HD -10063/HD/NICHD NIH HHS/ -- T-32GM07514/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1982 May 7;216(4546):640-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7200262" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Brain/embryology ; Female ; Infertility, Male/*chemically induced ; Male ; Phenobarbital/*pharmacology ; Pregnancy ; Pregnancy, Animal/drug effects ; Rats ; Sex Differentiation/*drug effects ; Testis/metabolism ; Testosterone/*metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 100
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1982-03-19
    Beschreibung: The participation of the opiate peptide enkephalin in the neural circuitry of the dorsal horn was examined at the light and ultrastructural level through the use of the combined techniques of immunocytochemistry and retrograde transport of horseradish peroxidase. Enkephalin immunoreactive axonal endings made direct synaptic contact with the soma and proximal dendrites of dorsal horn thalamic projection neurons. This observation demonstrates that one major synaptic site of enkephalin modulation of the transfer of nociceptive information in the dorsla horn is on the projection neurons themselves.U〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ruda, M A -- New York, N.Y. -- Science. 1982 Mar 19;215(4539):1523-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6121374" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cats ; Endorphins/*physiology ; Enkephalins/*physiology ; Horseradish Peroxidase ; Neural Pathways/physiology ; Neurotransmitter Agents/physiology ; Pain/*physiopathology ; Spinal Cord/*physiology ; Thalamus/physiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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