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  • 1
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    An about 50,000-dalton protein in adrenal medulla: a common precursor of [Met]- and [Leu]enkephalin (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-06-27
    Description: A protein that may be an enkephalin precursor has been identified in extracts of bovine adrenal medulla. This protein (about 50,000 daltons) appears to contain seven copies of [Met]enkephalin and one copy of [Leu]enkephalin. Digestion with trypsin and carboxypeptidase B yields [Met]enkephalin and [Leu]enkephalin in a ratio of almost 7 to 1. The enkephalins were identified by chromatography and by their binding to opiate receptors. Some characteristics of several other adrenal peptides that may serve as intermediates in the biosynthesis of the enkephalins are presented.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewis, R V -- Stern, A S -- Kimura, S -- Rossier, J -- Stein, S -- Udenfriend, S -- New York, N.Y. -- Science. 1980 Jun 27;208(4451):1459-61.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7384787" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenal Medulla/*analysis ; Animals ; Cattle ; Chromaffin Granules/*analysis ; Chromaffin System/*analysis ; Endorphins/*biosynthesis ; Enkephalin, Leucine ; Enkephalin, Methionine ; Enkephalins/*biosynthesis ; Molecular Weight ; Oligopeptides/analysis ; Peptide Fragments/analysis ; Protein Precursors/*analysis ; Proteins/*analysis ; Trypsin
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Choline acetyltransferase-containing neurons in rodent brain demonstrated by immunohistochemistry (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-05-30
    Description: Choline acetyltransferase was demonstrated in neuronal structures of the rodent central nervous system by immunohistochemistry through the application of Fab fragments obtained from monospecific antiserums to human choline acetyltransferase. The specificity of the antiserum for the enzyme was confirmed by the staining of both the ventral horn motor neurons in the rat spinal cord and the neuromuscular junction of the guinea pig diaphragm. Enzyme-containing cell bodies were observed in frontal sections of rat and guinea pig brain in the neostriatum, accumbens, nucleus of the diagonal band, medial septum, and olfactory tubercle. Positively staining fibers and probable nerve terminals were also found in the olfactory tubercle field and other areas of the basal forebrain. The results provide information on the distribution of the cholinergic systems in the rostral forebrain of the rodent.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kimura, H -- McGeer, P L -- Peng, F -- McGeer, E G -- New York, N.Y. -- Science. 1980 May 30;208(4447):1057-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6990490" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/cytology/*enzymology ; Brain Mapping ; Choline O-Acetyltransferase/*metabolism ; Cholinergic Fibers/cytology ; Corpus Striatum/enzymology ; Guinea Pigs ; Hippocampus/enzymology ; Immunoenzyme Techniques ; Nucleus Accumbens/enzymology ; Olfactory Bulb/enzymology ; Rats ; Spinal Cord/enzymology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    Perivascular microglial cells of the CNS are bone marrow-derived and present antigen in vivo (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-01-15
    Description: A crucial question in the study of immunological reactions in the central nervous system (CNS) concerns the identity of the parenchymal cells that function as the antigen-presenting cells in that organ. Rat bone marrow chimeras and encephalitogenic, major histocompatability--restricted T-helper lymphocytes were used to show that a subset of endogenous CNS cells, commonly termed "perivascular microglial cells," is bone marrow-derived. In addition, these perivascular cells are fully competent to present antigen to lymphocytes in an appropriately restricted manner. These findings are important for bone marrow transplantation and for neuroimmunological diseases such as multiple sclerosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hickey, W F -- Kimura, H -- KO7-NS0087/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1988 Jan 15;239(4837):290-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA 19104-6079.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3276004" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigen-Presenting Cells/*immunology ; Astrocytes/immunology ; Bone Marrow/*immunology ; Bone Marrow Transplantation ; Central Nervous System/blood supply/*immunology/pathology ; Chimera ; Encephalomyelitis, Autoimmune, Experimental/immunology/pathology ; Endothelium/immunology ; Graft vs Host Disease/immunology ; Histocompatibility Antigens/analysis/immunology ; Immunohistochemistry ; Multiple Sclerosis/immunology/pathology ; Neuroglia/*immunology ; Rats ; Rats, Inbred Lew ; T-Lymphocytes/immunology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Conversion of normal behavior to shiverer by myelin basic protein antisense cDNA in transgenic mice (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-07-29
    Description: Myelin basic proteins (MBPs) are coded by the single gene necessary for myelin formation in the central nervous system of the mouse. An antisense MBP mini-gene was constructed and used to determine the function of antisense DNA in transgenic mice. Several transgenic offspring of a founder transgenic mouse, AS100, were converted from the normal to mutant shiverer phenotype. Antisense MBP messenger RNA was expressed in these mice, and the endogenous MBP messenger RNA, the MBP, and the myelination in the central nervous system were reduced.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Katsuki, M -- Sato, M -- Kimura, M -- Yokoyama, M -- Kobayashi, K -- Nomura, T -- New York, N.Y. -- Science. 1988 Jul 29;241(4865):593-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of DNA Biology, School of Medicine, Tokai University, Isehara, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2456614" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Brain/physiology ; DNA/genetics ; Gene Expression Regulation ; Mice ; Mice, Neurologic Mutants/*physiology ; Mice, Transgenic ; Molecular Sequence Data ; Myelin Basic Protein/genetics/*physiology ; Myelin Sheath/physiology ; Phenotype ; RNA/*genetics ; RNA, Antisense
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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