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  • Humans  (473)
  • Molecular Sequence Data  (320)
  • 1990-1994  (648)
  • 1955-1959
  • 1
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    Selective transmission of human immunodeficiency virus type-1 variants from mothers to infants (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-02-28
    Description: Multiple human immunodeficiency virus type-1 sequences from the V3 and V4-V5 regions of the envelope gene were analyzed from three mother-infant pairs. The infants' viral sequences were less diverse than those of their mothers. In two pairs, a proviral form infrequently found in the mother predominated in her infant. A conserved N-linked glycosylation site within the V3 region, present in each mother's sequence set, was absent in all of the infants' sequence sets. These findings demonstrate that a minor subset of maternal virus is transmitted to the infant.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wolinsky, S M -- Wike, C M -- Korber, B T -- Hutto, C -- Parks, W P -- Rosenblum, L L -- Kunstman, K J -- Furtado, M R -- Munoz, J L -- AI-32535/AI/NIAID NIH HHS/ -- HD26619-01/HD/NICHD NIH HHS/ -- P01-25569/PHS HHS/ -- New York, N.Y. -- Science. 1992 Feb 28;255(5048):1134-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Northwestern University Medical School, Chicago, IL 60611.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1546316" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/congenital/microbiology/*transmission ; Amino Acid Sequence ; Base Sequence ; Female ; Genotype ; Glycosylation ; HIV Antigens/genetics ; HIV Envelope Protein gp120/genetics/immunology ; HIV-1/*genetics/immunology ; Humans ; Infant ; Maternal-Fetal Exchange ; Molecular Sequence Data ; Oligodeoxyribonucleotides/chemistry ; Polymerase Chain Reaction ; Pregnancy ; Selection, Genetic ; Sequence Alignment
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
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    Interleukin-8 as a macrophage-derived mediator of angiogenesis (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-12-11
    Description: Angiogenic factors produced by monocytes-macrophages are involved in the pathogenesis of chronic inflammatory disorders characterized by persistent angiogenesis. The possibility was tested that interleukin-8 (IL-8), which is a cytokine that is chemotactic for lymphocytes and neutrophils, is also angiogenic. Human recombinant IL-8 was potently angiogenic when implanted in the rat cornea and induced proliferation and chemotaxis of human umbilical vein endothelial cells. Angiogenic activity present in the conditioned media of inflamed human rheumatoid synovial tissue macrophages or lipopolysaccharide-stimulated blood monocytes was equally blocked by antibodies to either IL-8 or tumor necrosis factor-alpha. An IL-8 antisense oligonucleotide specifically blocked the production of monocyte-induced angiogenic activity. These data suggest a function for macrophage-derived IL-8 in angiogenesis-dependent disorders such as rheumatoid arthritis, tumor growth, and wound repair.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koch, A E -- Polverini, P J -- Kunkel, S L -- Harlow, L A -- DiPietro, L A -- Elner, V M -- Elner, S G -- Strieter, R M -- AR30692/AR/NIAMS NIH HHS/ -- AR41492/AR/NIAMS NIH HHS/ -- HL39926/HL/NHLBI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1992 Dec 11;258(5089):1798-801.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Northwestern University Medical School, Chicago, IL 60611.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1281554" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arthritis, Rheumatoid/physiopathology ; Base Sequence ; Cell Division/drug effects ; Cells, Cultured ; Chemotaxis/*drug effects ; Cornea/*drug effects/physiology ; Dose-Response Relationship, Drug ; Endothelium, Vascular/drug effects/*physiology ; Fibroblast Growth Factor 2/pharmacology ; Humans ; Interleukin-8/genetics/*pharmacology ; Macrophages/*physiology ; Mice ; Molecular Sequence Data ; Monocytes/physiology ; *Neovascularization, Pathologic ; Oligonucleotides, Antisense/*pharmacology ; Rabbits ; Rats ; Recombinant Proteins/pharmacology ; Synovial Fluid/physiology ; Tumor Necrosis Factor-alpha/genetics ; Umbilical Veins
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
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  • 3
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    Identification of mutations in the COL4A5 collagen gene in Alport syndrome (1990)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1990-06-08
    Description: X-linked Alport syndrome is a hereditary glomerulonephritis in which progressive loss of kidney function is often accompanied by progressive loss of hearing. Ultrastructural defects in glomerular basement membranes (GBM) of Alport syndrome patients implicate an altered structural protein as the cause of nephritis. The product of COL4A5, the alpha 5(IV) collagen chain, is a specific component of GBM within the kidney, and the gene maps to the same X chromosomal region as does Alport syndrome. Three structural aberrations were found in COL4A5, in intragenic deletion, a Pst I site variant, and an uncharacterized abnormality, which appear to cause nephritis and deafness, with allele-specific severity, in three Alport syndrome kindreds in Utah.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barker, D F -- Hostikka, S L -- Zhou, J -- Chow, L T -- Oliphant, A R -- Gerken, S C -- Gregory, M C -- Skolnick, M H -- Atkin, C L -- Tryggvason, K -- DK 36200/DK/NIDDK NIH HHS/ -- DK 39497/DK/NIDDK NIH HHS/ -- M01 RR 00064/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1990 Jun 8;248(4960):1224-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical Informatics, University of Utah School of Medicine, Salt Lake City 84132.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2349482" target="_blank"〉PubMed〈/a〉
    Keywords: Blotting, Southern ; Cloning, Molecular ; Collagen/*genetics ; DNA/genetics/isolation & purification ; Exons ; Female ; *Genes ; Humans ; Male ; Molecular Weight ; *Mutation ; Nephritis, Hereditary/*genetics ; Pedigree ; Restriction Mapping ; X Chromosome
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Phosphate-methylated DNA aimed at HIV-1 RNA loops and integrated DNA inhibits viral infectivity (1990)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1990-04-13
    Description: Phosphate-methylated DNA hybridizes strongly and specifically to natural DNA and RNA. Hybridization to single-stranded and double-stranded DNA leads to site-selective blocking of replication and transcription. Phosphate-methylated DNA was used to interrupt the life cycle of the human immunodeficiency virus type-1 (HIV-1), the causative agent of acquired immunodeficiency syndrome (AIDS). Both antisense and sense phosphate-methylated DNA 20-nucleotide oligomers, targeted at the transactivator responsive region and the primer binding site, caused complete inhibition of viral infectivity at a low concentration. Hybridization of phosphate-methylated DNA with folded and unfolded RNA was studied by ultraviolet and proton nuclear magnetic resonance spectroscopy. The combined results of hybridization studies and biological experiments suggest that the design of effective antisense phosphate-methylated DNA should focus on hairpin loop structures in the viral RNA. For sense systems, the 5' end of the integrated viral genome is considered to be the important target site.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Buck, H M -- Koole, L H -- van Genderen, M H -- Smit, L -- Geelen, J L -- Jurriaans, S -- Goudsmit, J -- New York, N.Y. -- Science. 1990 Apr 13;248(4952):208-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Organic Chemistry, Eindhoven University of Technology, The Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2326635" target="_blank"〉PubMed〈/a〉
    Keywords: Anticodon/genetics ; Base Composition ; Base Sequence ; Cell Line ; Codon/genetics ; *DNA Probes/metabolism ; DNA, Viral/biosynthesis ; HIV-1/*genetics/pathogenicity ; Hydrogen Bonding ; Indicators and Reagents ; Methylation ; Models, Structural ; Molecular Sequence Data ; Nucleic Acid Conformation ; Nucleic Acid Hybridization ; Organophosphorus Compounds/metabolism ; RNA, Viral/*genetics ; Thermodynamics ; Virulence/genetics
    Print ISSN: 0036-8075
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  • 5
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    A bacterial system for investigating transport effects of cystic fibrosis--associated mutations (1991)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1991-10-04
    Description: LIV-I, a high-affinity system that transports neutral, branched-chain amino acids into Escherichia coli, has two components, LivG and LivF, that are homologous to the cystic fibrosis (CF) transmembrane conductance regulator (CFTR). CF-associated mutations of human CFTR were introduced into corresponding regions of LivG, and their effects on leucine transport could be grouped into three classes. Mutations were found that (i) abolished LIV-I--directed transport, (ii) retained about a quarter of wild-type activity at the Michaelis-Menten constant (KM), and (iii) had minimal activity at the KM. A mutation equivalent to a benign polymorphism had no effect on transport. The correlation of these mutational phenotypes in LivG and CFTR suggests that the LIV-I prokaryotic transporter is functionally similar to the CF protein and that this similarity can be exploited to clarify the properties of the nucleotide-binding fold in this superfamily of proteins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gibson, A L -- Wagner, L M -- Collins, F S -- Oxender, D L -- New York, N.Y. -- Science. 1991 Oct 4;254(5028):109-11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Chemistry, University of Michigan, Ann Arbor 48109.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1718037" target="_blank"〉PubMed〈/a〉
    Keywords: ATP-Binding Cassette Transporters ; Amino Acid Sequence ; Bacterial Proteins/*genetics ; Biological Transport, Active ; Cloning, Molecular ; Cystic Fibrosis/*genetics ; Cystic Fibrosis Transmembrane Conductance Regulator ; DNA Mutational Analysis ; Escherichia coli/genetics ; *Escherichia coli Proteins ; Humans ; Kinetics ; Leucine/metabolism ; Membrane Proteins/*genetics ; *Membrane Transport Proteins ; Molecular Sequence Data ; Protein Binding ; Restriction Mapping ; Sequence Alignment ; Structure-Activity Relationship
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  • 6
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    Inability of malaria vaccine to induce antibodies to a protective epitope within its sequence (1991)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1991-02-08
    Description: Saimiri monkeys immunized with a recombinant protein containing 20 copies of the nine amino acid repeat of the Plasmodium vivax circumsporozoite (CS) protein developed high concentrations of antibodies to the repeat sequence and to sporozoites, but were not protected against challenge. After intravenous injection of an immunoglobulin G3 monoclonal antibody (NVS3) against irradiated P. vivax sporozoites, four of six monkeys were protected against sporozoite-induced malaria, and the remaining two animals took significantly longer to become parasitemic. Epitope mapping demonstrated that NVS3 recognizes only four (AGDR) of the nine amino acids within the repeat region of the P. vivax CS protein. The monkeys immunized with (DRAADGQPAG)20 did not produce antibodies to the protective epitope AGDR. Thus, determination of the fine specificity of protective immune responses may be critical to the construction of successful subunit vaccines.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Charoenvit, Y -- Collins, W E -- Jones, T R -- Millet, P -- Yuan, L -- Campbell, G H -- Beaudoin, R L -- Broderson, J R -- Hoffman, S L -- New York, N.Y. -- Science. 1991 Feb 8;251(4994):668-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Infectious Diseases Department, Naval Medical Research Institute, Bethesda, MD 20889.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1704150" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibodies, Monoclonal/immunology ; Antibodies, Protozoan/*immunology ; Antigens, Protozoan/*immunology ; Epitopes ; Immunization, Passive ; Malaria/immunology/*prevention & control ; Molecular Sequence Data ; Peptide Fragments/immunology ; Plasmodium vivax/*immunology ; *Protozoan Proteins ; Saimiri ; Vaccines, Synthetic/immunology
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  • 7
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    Primary structure and functional expression of the beta 1 subunit of the rat brain sodium channel (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-05-08
    Description: Voltage-sensitive sodium channels are responsible for the initiation and propagation of the action potential and therefore are important for neuronal excitability. Complementary DNA clones encoding the beta 1 subunit of the rat brain sodium channel were isolated by a combination of polymerase chain reaction and library screening techniques. The deduced primary structure indicates that the beta 1 subunit is a 22,851-dalton protein that contains a single putative transmembrane domain and four potential extracellular N-linked glycosylation sites, consistent with biochemical data. Northern blot analysis reveals a 1,400-nucleotide messenger RNA in rat brain, heart, skeletal muscle, and spinal cord. Coexpression of beta 1 subunits with alpha subunits increases the size of the peak sodium current, accelerates its inactivation, and shifts the voltage dependence of inactivation to more negative membrane potentials. These results indicate that the beta 1 subunit is crucial in the assembly, expression, and functional modulation of the heterotrimeric complex of the rat brain sodium channel.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Isom, L L -- De Jongh, K S -- Patton, D E -- Reber, B F -- Offord, J -- Charbonneau, H -- Walsh, K -- Goldin, A L -- Catterall, W A -- NS15751/NS/NINDS NIH HHS/ -- NS25704/NS/NINDS NIH HHS/ -- NS26729/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1992 May 8;256(5058):839-42.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, University of Washington, Seattle 98195.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1375395" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Blotting, Northern ; Brain/*physiology ; Cloning, Molecular ; DNA/genetics/isolation & purification ; Female ; Kinetics ; Macromolecular Substances ; Membrane Potentials ; Molecular Sequence Data ; Oocytes/physiology ; Polymerase Chain Reaction/methods ; Protein Conformation ; RNA/genetics/isolation & purification ; RNA, Messenger/genetics ; Rats ; Sodium Channels/*genetics/*physiology ; Voltage-Gated Sodium Channel beta-1 Subunit ; Xenopus
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  • 8
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    Recombinant virus vaccine-induced SIV-specific CD8+ cytotoxic T lymphocytes (1991)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1991-04-19
    Description: Evidence indicates that cytotoxic T lymphocytes (CTLs) may be important in containing the spread of the human immunodeficiency virus (HIV) in the infected host. Although the use of recombinant viruses has been proposed as an approach to elicit protective immunity against HIV, the ability of recombinant viral constructs to elicit CD8+ CTL responses in higher primates has never been demonstrated. A live recombinant virus, vaccinia-simian immunodeficiency virus of macaques (SIVmac), was used to determine whether such a genetically restricted, T lymphocyte-mediated antiviral response could be generated in a primate. Vaccinia-SIVmac vaccination elicited an SIVmac Gag-specific, CD8+ CTL response in rhesus monkeys. These CTLs recognized a peptide fragment that spans residues 171 to 195 of the Gag protein. The rhesus monkey major histocompatibility complex (MHC) class I gene product restricting this CTL response was defined. Both the vaccinated and SIVmac-infected monkeys that shared this MHC class I gene product developed CTLs with the same Gag epitope specificity. These findings support the use of recombinant virus vaccines for the prevention of HIV infections in humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shen, L -- Chen, Z W -- Miller, M D -- Stallard, V -- Mazzara, G P -- Panicali, D L -- Letvin, N L -- AI20729/AI/NIAID NIH HHS/ -- AI26507/AI/NIAID NIH HHS/ -- CA50139/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1991 Apr 19;252(5004):440-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Harvard Medical School, New England Regional Primate Research Center, Southborough, MA 01772.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1708168" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibodies, Viral/biosynthesis ; Antigens, CD/analysis ; Antigens, CD8 ; Antigens, Differentiation, T-Lymphocyte/analysis ; Epitopes/chemistry/immunology ; Gene Products, gag/chemistry/*immunology ; Macaca mulatta ; Molecular Sequence Data ; Peptide Fragments/chemistry/immunology ; Simian Acquired Immunodeficiency Syndrome/*immunology ; Simian Immunodeficiency Virus/*immunology ; T-Lymphocytes, Cytotoxic/*immunology ; T-Lymphocytes, Helper-Inducer/immunology ; Vaccines, Synthetic/*immunology ; Viral Vaccines/*immunology
    Print ISSN: 0036-8075
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  • 9
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    Cellular proteins bound to immunodeficiency viruses: implications for pathogenesis and vaccines (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-12-28
    Description: Cellular proteins associated with immunodeficiency viruses were identified by determination of the amino acid sequence of the proteins and peptides present in sucrose density gradient-purified human immunodeficiency virus (HIV)-1, HIV-2, and simian immunodeficiency virus (SIV). beta 2 microglobulin (beta 2m) and the alpha and beta chains of human lymphocyte antigen (HLA) DR were present in virus preparations at one-fifth the concentration of Gag on a molar basis. Antisera to HLA DR, beta 2 m, as well as HLA class I precipitated intact viral particles, suggesting that these cellular proteins were physically associated with the surface of the virus. Antisera to class I, beta 2m, and HLA DR also inhibited infection of cultured cells by both HIV-1 and SIV. The specific, selective association of these cellular proteins in a physiologically relevant manner has major implications for our understanding of the infection process and the pathogenesis of immunodeficiency viruses and should be considered in the design of vaccines.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arthur, L O -- Bess, J W Jr -- Sowder, R C 2nd -- Benveniste, R E -- Mann, D L -- Chermann, J C -- Henderson, L E -- N01-CO-74102/CO/NCI NIH HHS/ -- New York, N.Y. -- Science. 1992 Dec 18;258(5090):1935-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉AIDS Vaccine Program, National Cancer Institute, Frederick Cancer Research and Development Center NCI-FCRDC, MD 21702.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1470916" target="_blank"〉PubMed〈/a〉
    Keywords: *AIDS Vaccines ; Centrifugation, Density Gradient ; Chromatography, High Pressure Liquid ; Gene Products, gag/analysis ; HIV-1/*immunology/isolation & purification/physiology ; HIV-2/*immunology/isolation & purification/physiology ; HLA-DR Antigens/isolation & purification/*metabolism ; Humans ; Immune Sera ; Lymphocytes/*immunology ; Neutralization Tests ; Simian Immunodeficiency Virus/*immunology/isolation & purification/physiology ; beta 2-Microglobulin/isolation & purification/*metabolism
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  • 10
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    GDNF: a potent survival factor for motoneurons present in peripheral nerve and muscle (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-11-11
    Description: For survival, embryonic motoneurons in vertebrates depend on as yet undefined neurotrophic factors present in the limb bud. Members of the neurotrophin family are currently the best candidates for such neurotrophic factors, but inactivation of their receptor genes leads to only partial loss of motoneurons, which suggests that other factors are involved. Glial cell line-derived neurotrophic factor (GDNF), originally identified as a trophic factor specific for dopaminergic neurons, was found to be 75-fold more potent than the neurotrophins in supporting the survival of purified embryonic rat motoneurons in culture. GDNF messenger RNA was found in the immediate vicinity of motoneurons during the period of cell death in development. In vivo, GDNF rescues and prevents the atrophy of facial motoneurons that have been deprived of target-derived survival factors by axotomy. GDNF may therefore be a physiological trophic factor for spinal motoneurons. Its potency and specificity in vitro and in vivo also make it a good candidate for treatment of motoneuron disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Henderson, C E -- Phillips, H S -- Pollock, R A -- Davies, A M -- Lemeulle, C -- Armanini, M -- Simmons, L -- Moffet, B -- Vandlen, R A -- Simpson LC corrected to Simmons, L -- Koliatsos, V E -- Rosenthal, A -- NS 10580/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1994 Nov 11;266(5187):1062-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉INSERM U.382, IBDM, Marseille, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7973664" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain-Derived Neurotrophic Factor ; Cell Death ; Cell Survival/drug effects ; Cells, Cultured ; Ciliary Neurotrophic Factor ; Face/innervation ; Glial Cell Line-Derived Neurotrophic Factor ; Growth Inhibitors/pharmacology ; *Interleukin-6 ; Leukemia Inhibitory Factor ; Lymphokines/pharmacology ; Molecular Sequence Data ; Motor Neurons/*cytology/drug effects ; Muscle Fibers, Skeletal/*metabolism ; Nerve Growth Factors/analysis/biosynthesis/genetics/*pharmacology ; Nerve Tissue Proteins/*analysis/biosynthesis/genetics/*pharmacology ; Neurons, Afferent/cytology/drug effects ; Peripheral Nerves/*metabolism ; RNA, Messenger/analysis/genetics ; Rats ; Schwann Cells/metabolism
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