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  • Chemical Engineering  (691)
  • Humans  (431)
  • 1985-1989  (1,122)
  • 1950-1954
  • 1988  (1,122)
  • 1
    Publication Date: 1988-12-02
    Description: Chronic granulomatous diseases of childhood (CGD) are a group of disorders of phagocytic cell superoxide (O2.-) production (respiratory burst). Anion exchange chromatography separated from normal neutrophil cytosol a 47-kilodalton neutrophil cytosol factor, NCF-1, that restored activity to defective neutrophil cytosol from most patients with autosomally inherited CGD in a cell-free O2.--generating system. A 65-kilodalton factor, NCF-2, restored activity to defective neutrophil cytosol from one patient with autosomal CGD. NCF-1, NCF-2, and a third cytosol fraction, NCF-3, were inactive alone or in pairs, but together replaced unfractionated cytosol in cell-free O2.- generation. Neutrophils deficient in NCF-1, but not NCF-2, did not phosphorylate the 47-kilodalton protein. It is proposed that NCF-1, NCF-2, and NCF-3 are essential for generation of O2.- by phagocytic cells and that genetic abnormalities of these cytosol components can result in the CGD phenotype.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nunoi, H -- Rotrosen, D -- Gallin, J I -- Malech, H L -- New York, N.Y. -- Science. 1988 Dec 2;242(4883):1298-301.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Bacterial Diseases Section, National Institute of Allergy and Infectious Diseases, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2848319" target="_blank"〉PubMed〈/a〉
    Keywords: Blotting, Western ; Cell Membrane/metabolism ; Cytosol/metabolism ; Granulomatous Disease, Chronic/*metabolism ; Humans ; In Vitro Techniques ; Molecular Weight ; Neutrophils/*metabolism ; Phosphoproteins/metabolism ; Superoxides/*biosynthesis
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  • 2
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-05-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Oliver, J H Jr -- New York, N.Y. -- Science. 1988 May 20;240(4855):967.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3368789" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Arthropod Vectors ; Government Agencies ; Humans ; *Research Support as Topic ; United States
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  • 3
    Publication Date: 1988-09-02
    Description: Octamer transcription factor-1 (OTF-1) and nuclear factor III (NF-III) are sequence-specific DNA binding proteins that activate transcription and DNA replication, respectively. It is shown here that OTF-1 is physically and biologically indistinguishable from NF-III. This conclusion is based on the following observations. First, the two proteins have identical mobilities by SDS-polyacrylamide gel electrophoresis. Second, OTF-1 binds to the adenovirus origin of DNA replication at the same site and with the same affinity as NF-III. Third, OTF-1 can substitute for NF-III in activating the initiation of adenovirus DNA replication in vitro. Fourth, the ability of OTF-1 to stimulate viral DNA replication is dependent on the presence of an intact NF-III binding site within the origin of replication. Fifth, NF-III can substitute for OTF-1 in activating in vitro transcription from the human histone H2b promoter. These data suggest the possibility that NF-III/OTF-1 is a protein that functions in both cellular DNA replication and transcription.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉O'Neill, E A -- Fletcher, C -- Burrow, C R -- Heintz, N -- Roeder, R G -- Kelly, T J -- CA16519/CA/NCI NIH HHS/ -- CA42567/CA/NCI NIH HHS/ -- R0IGM32544/GM/NIGMS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1988 Sep 2;241(4870):1210-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, MD 21205.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3413485" target="_blank"〉PubMed〈/a〉
    Keywords: Adenoviridae/physiology ; DNA Replication/*drug effects ; DNA-Binding Proteins/metabolism/*pharmacology ; Electrophoresis, Polyacrylamide Gel ; HeLa Cells ; Histones/genetics ; Host Cell Factor C1 ; Humans ; Molecular Weight ; Nuclear Proteins/metabolism/*pharmacology ; Octamer Transcription Factor-1 ; Promoter Regions, Genetic ; Transcription Factors/metabolism/*pharmacology ; Transcription, Genetic/*drug effects ; Virus Replication/drug effects
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  • 4
    Publication Date: 1988-08-26
    Description: In situ hybridization was used to assess total amyloid protein precursor (APP) messenger RNA and the subset of APP mRNA containing the Kunitz protease inhibitor (KPI) insert in 11 Alzheimer's disease (AD) and 7 control brains. In AD, a significant twofold increase was observed in total APP mRNA in nucleus basalis and locus ceruleus neurons but not in hippocampal subicular neurons, neurons of the basis pontis, or occipital cortical neurons. The increase in total APP mRNA in locus ceruleus and nucleus basalis neurons was due exclusively to an increase in APP mRNA lacking the KPI domain. These findings suggest that increased production of APP lacking the KPI domain in nucleus basalis and locus ceruleus neurons may play an important role in the deposition of cerebral amyloid that occurs in AD.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palmert, M R -- Golde, T E -- Cohen, M L -- Kovacs, D M -- Tanzi, R E -- Gusella, J F -- Usiak, M F -- Younkin, L H -- Younkin, S G -- 5T32GM07250/GM/NIGMS NIH HHS/ -- AG06656/AG/NIA NIH HHS/ -- MH43444/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1988 Aug 26;241(4869):1080-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Neuropathology, Case Western Reserve University, School of Medicine, Cleveland, OH 44106.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2457949" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/*genetics ; Amyloid/*genetics ; Bacteriophage lambda/genetics ; Brain/metabolism ; Cerebral Cortex/metabolism ; *Gene Expression Regulation ; Humans ; Locus Coeruleus/metabolism ; Neurons/metabolism ; Nucleic Acid Hybridization ; Operator Regions, Genetic ; Plasmids ; Protein Precursors/*genetics ; RNA/genetics ; RNA, Complementary ; RNA, Messenger/*genetics/metabolism ; Repressor Proteins/metabolism ; Transcription, Genetic ; Trypsin Inhibitors/genetics
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  • 5
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-09-09
    Description: Oligonucleotides complementary to regions of U1 and U2 small nuclear RNAs (snRNAs), when injected into Xenopus laevis oocytes, rapidly induced the specific degradation of U1 and U2 snRNAs, respectively, and then themselves were degraded. After such treatment, splicing of simian virus 40 (SV40) late pre-mRNA transcribed from microinjected viral DNA was blocked in oocytes. If before introduction of SV40 DNA into oocytes HeLa cell U1 or U2 snRNAs were injected and allowed to assemble into small nuclear ribonucleoprotein particle (snRNP)-like complexes, SV40 late RNA was as efficiently spliced as in oocytes that did not receive U1 or U2 oligonucleotides. This demonstrates that oocytes can form fully functional hybrid U1 and U2 snRNPs consisting of human snRNA and amphibian proteins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pan, Z Q -- Prives, C -- CA33620/CA/NCI NIH HHS/ -- CA46121/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1988 Sep 9;241(4871):1328-31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, Columbia University, New York, NY 10027.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2970672" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Humans ; Macromolecular Substances ; Oocytes ; *RNA Splicing ; *RNA, Small Nuclear ; *Ribonucleoproteins ; Ribonucleoproteins, Small Nuclear ; Species Specificity ; Structure-Activity Relationship ; Xenopus laevis
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  • 6
    Publication Date: 1988-01-15
    Description: By means of a selective DNA amplification technique called polymerase chain reaction, proviral sequences of the human immunodeficiency virus (HIV-1) were identified directly in DNA isolated from peripheral blood mononuclear cells (PBMCs) of persons seropositive but not in DNA isolated from PBMCs of persons seronegative for the virus. Primer pairs from multiple regions of the HIV-1 genome were used to achieve maximum sensitivity of provirus detection. HIV-1 sequences were detected in 100% of DNA specimens from seropositive, homosexual men from whom the virus was isolated by coculture, but in none of the DNA specimens from a control group of seronegative, virus culture-negative persons. However, HIV-1 sequences were detected in 64% of DNA specimens from seropositive, virus culture-negative homosexual men. This method of DNA amplification made it possible to obtain results within 3 days, whereas virus isolation takes up to 3 to 4 weeks. The method may therefore be used to complement or replace virus isolation as a routine means of determining HIV-1 infection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ou, C Y -- Kwok, S -- Mitchell, S W -- Mack, D H -- Sninsky, J J -- Krebs, J W -- Feorino, P -- Warfield, D -- Schochetman, G -- New York, N.Y. -- Science. 1988 Jan 15;239(4837):295-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Infectious Diseases, Centers for Disease Control, Atlanta, GA 30333.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3336784" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*microbiology ; Base Sequence ; DNA, Viral/*blood ; DNA-Directed DNA Polymerase ; *Gene Amplification ; HIV/*genetics/isolation & purification ; HIV Seropositivity ; Homosexuality ; Humans ; Leukocytes, Mononuclear/*analysis ; Male ; Nucleic Acid Amplification Techniques ; Nucleic Acid Hybridization ; Virus Cultivation
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  • 7
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-02-05
    Description: The acquired immunodeficiency syndrome (AIDS) and infection with the human immunodeficiency virus type 1 (HIV-1) constitute a worldwide public health problem. Whereas in Europe and in most of the Americas transmission of HIV-1 has occurred predominantly among homosexual men and intravenous drug abusers, in Africa a distinct epidemiologic pattern has emerged that indicates that HIV-1 infection is mainly heterosexually acquired. Heterosexual transmission appears to be increasing in some parts of Latin America and the Caribbean, and possibly in the United States. In addition to HIV-1, at least one other human retrovirus, namely HIV-2, has been implicated as a cause of AIDS in Africa and Europe. Factors that influence heterosexual transmission of HIV-1 include genital ulcerations, early or late stages of HIV-1 infection in the index case, and possibly oral contraception and immune activation. The rate of perinatal transmission is enhanced when the mother's illness is more advanced. AIDS and HIV-1 infection may have a significant impact not only on public health, but also on the demography and socioeconomic conditions of some developing countries. Programs for the prevention and control of AIDS should be an immediate priority in all countries.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Piot, P -- Plummer, F A -- Mhalu, F S -- Lamboray, J L -- Chin, J -- Mann, J M -- New York, N.Y. -- Science. 1988 Feb 5;239(4840):573-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology, Institute of Tropical Medicine, Antwerp, Belgium.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3277271" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/epidemiology/prevention & ; control/*transmission ; Female ; HIV/classification/pathogenicity ; Humans ; Infant, Newborn ; Male ; Pregnancy ; Sexual Behavior
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  • 8
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-06-17
    Description: The human brain localizes mental operations of the kind posited by cognitive theories. These local computations are integrated in the performance of cognitive tasks such as reading. To support this general hypothesis, new data from neural imaging studies of word reading are related to results of studies on normal subjects and patients with lesions. Further support comes from studies in mental imagery, timing, and memory.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Posner, M I -- Petersen, S E -- Fox, P T -- Raichle, M E -- HL 13851/HL/NHLBI NIH HHS/ -- NS 06833/NS/NINDS NIH HHS/ -- NS 14834/NS/NINDS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1988 Jun 17;240(4859):1627-31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, Washington University Medical Center, St. Louis, MO 63110.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3289116" target="_blank"〉PubMed〈/a〉
    Keywords: Attention/physiology ; Brain/anatomy & histology/*physiology ; Cognition/*physiology ; Humans ; Imagination/physiology ; Memory/physiology ; Reading ; Tomography, Emission-Computed ; Vision, Ocular/physiology
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  • 9
    Publication Date: 1988-02-05
    Description: Infection with human immunodeficiency virus type 1 (HIV-1) is frequently complicated in its late stages by the AIDS dementia complex, a neurological syndrome characterized by abnormalities in cognition, motor performance, and behavior. This dementia is due partially or wholly to a direct effect of the virus on the brain rather than to opportunistic infection, but its pathogenesis is not well understood. Productive HIV-1 brain infection is detected only in a subset of patients and is confined largely or exclusively to macrophages, microglia, and derivative multinucleated cells that are formed by virus-induced cell fusion. Absence of cytolytic infection of neurons, oligodentrocytes, and astrocytes has focused attention on the possible role of indirect mechanisms of brain dysfunction related to either virus or cell-coded toxins. Delayed development of the AIDS dementia complex, despite both early exposure of the nervous system to HIV-1 and chronic leptomeningeal infection, indicates that although this virus is "neurotropic," it is relatively nonpathogenic for the brain in the absence of immunosuppression. Within the context of the permissive effect of immunosuppression, genetic changes in HIV-1 may underlie the neuropathological heterogeneity of the AIDS dementia complex and its relatively independent course in relation to the systemic manifestations of AIDS noted in some patients.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Price, R W -- Brew, B -- Sidtis, J -- Rosenblum, M -- Scheck, A C -- Cleary, P -- NS-19048/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1988 Feb 5;239(4840):586-92.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, Memorial Hospital, New York, NY 10021.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3277272" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*pathology/psychology ; Brain/*microbiology/pathology ; Central Nervous System/*microbiology/pathology ; Dementia/*etiology ; Humans
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  • 10
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-06-17
    Description: The alpha helix, first proposed by Pauling and co-workers, is a hallmark of protein structure, and much effort has been directed toward understanding which sequences can form helices. The helix hypothesis, introduced here, provides a tentative answer to this question. The hypothesis states that a necessary condition for helix formation is the presence of residues flanking the helix termini whose side chains can form hydrogen bonds with the initial four-helix greater than N-H groups and final four-helix greater than C-O groups; these eight groups would otherwise lack intrahelical partners. This simple hypothesis implies the existence of a stereochemical code in which certain sequences have the hydrogen-bonding capacity to function as helix boundaries and thereby enable the helix to form autonomously. The three-dimensional structure of a protein is a consequence of the genetic code, but the rules relating sequence to structure are still unknown. The ensuing analysis supports the idea that a stereochemical code for the alpha helix resides in its boundary residues.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Presta, L G -- Rose, G D -- AG 06084/AG/NIA NIH HHS/ -- GM 29458/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1988 Jun 17;240(4859):1632-41.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Chemistry, Hershey Medical Center, Pennsylvania State University, Hershey 17033.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2837824" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Carboxypeptidases ; Carboxypeptidases A ; Cytochrome c Group ; Flavodoxin ; Humans ; Hydrogen Bonding ; Models, Chemical ; Molecular Sequence Data ; Muramidase ; Myoglobin ; Pancreatic Polypeptide ; Parvalbumins ; Plastocyanin ; *Protein Conformation ; Ribonucleases ; Scorpion Venoms ; Tetrahydrofolate Dehydrogenase ; Triose-Phosphate Isomerase ; Trypsin Inhibitors ; X-Ray Diffraction
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  • 11
    Publication Date: 1988-12-02
    Description: Human gamma-aminobutyric acid A (GABAA) receptor subunits were expressed transiently in cultured mammalian cells. This expression system allows the simultaneous characterization of ligand-gated ion channels by electrophysiology and by pharmacology. Thus, coexpression of the alpha and beta subunits of the GABAA receptor generated GABA-gated chloride channels and binding sites for GABAA receptor ligands. Channels consisting of only alpha or beta subunits could also be detected. These homomeric channels formed with reduced efficiencies compared to the heteromeric receptors. Both of these homomeric GABA-responsive channels were potentiated by barbiturate, indicating that sites for both ligand-gating and allosteric potentiation are present on receptors assembled from either subunit.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pritchett, D B -- Sontheimer, H -- Gorman, C M -- Kettenmann, H -- Seeburg, P H -- Schofield, P R -- New York, N.Y. -- Science. 1988 Dec 2;242(4883):1306-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Neuroendocrinology, ZMBH, University of Heidelberg, Federal Republic of Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2848320" target="_blank"〉PubMed〈/a〉
    Keywords: Allosteric Regulation ; Blotting, Northern ; Cells, Cultured ; Chloride Channels ; Chlorides/*physiology ; Cloning, Molecular ; Electric Conductivity ; Humans ; Macromolecular Substances ; Membrane Proteins/*physiology ; Muscimol/metabolism ; Receptors, GABA-A/*physiology/ultrastructure ; Structure-Activity Relationship ; Transfection
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  • 12
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-07-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roberts, L -- New York, N.Y. -- Science. 1988 Jul 8;241(4862):159-61.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3388027" target="_blank"〉PubMed〈/a〉
    Keywords: Humans ; Mental Disorders/epidemiology ; *Military Medicine ; *Veterans ; Vietnam
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  • 13
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-05-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roberts, L -- New York, N.Y. -- Science. 1988 May 27;240(4856):1145.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3375808" target="_blank"〉PubMed〈/a〉
    Keywords: Humans ; Poliomyelitis/*prevention & control ; Poliovirus Vaccine, Inactivated/*standards
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  • 14
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-05-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roberts, L -- New York, N.Y. -- Science. 1988 May 13;240(4854):878-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3363368" target="_blank"〉PubMed〈/a〉
    Keywords: *Administrative Personnel ; *Base Sequence ; *Chromosomes, Human ; *Genes ; Humans ; National Institutes of Health (U.S.)/*organization & administration ; Research Support as Topic/economics/legislation & jurisprudence ; United States
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  • 15
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-02-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roberts, L -- New York, N.Y. -- Science. 1988 Feb 5;239(4840):564.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3277270" target="_blank"〉PubMed〈/a〉
    Keywords: Administration, Topical ; Aging ; Clinical Trials as Topic ; Double-Blind Method ; Humans ; Skin/*growth & development ; Tretinoin/administration & dosage/*therapeutic use
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  • 16
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-02-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roberts, L -- New York, N.Y. -- Science. 1988 Feb 12;239(4841 Pt 1):725-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3340854" target="_blank"〉PubMed〈/a〉
    Keywords: *Base Sequence ; *Chromosome Mapping ; *Chromosomes, Human ; Government Agencies ; Humans ; Societies, Scientific ; United States
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  • 17
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-01-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roberts, L -- New York, N.Y. -- Science. 1988 Jan 1;239(4835):21-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3336772" target="_blank"〉PubMed〈/a〉
    Keywords: Humans ; *Sex Determination Analysis ; X Chromosome ; Y Chromosome
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  • 18
    Publication Date: 1988-09-02
    Description: The human ferritin H chain messenger RNA contains a specific iron-responsive element (IRE) in its 5' untranslated region, which mediates regulation by iron of ferritin translation. An RNA gel retardation assay was used to demonstrate the affinity of a specific cytosolic binding protein for the IRE. A single-base deletion in the IRE eliminated both the interaction of the cytoplasmic protein with the IRE and translational regulation. Thus, the regulatory potential of the IRE correlates with its capacity to specifically interact with proteins. Titration curves of binding activity after treatment of cells with an iron chelator suggest that the factor acts as a repressor of ferritin translation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rouault, T A -- Hentze, M W -- Caughman, S W -- Harford, J B -- Klausner, R D -- New York, N.Y. -- Science. 1988 Sep 2;241(4870):1207-10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cell Biology and Metabolism Branch, National Institute of Child Health and Human Development, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3413484" target="_blank"〉PubMed〈/a〉
    Keywords: Base Composition ; Binding, Competitive ; Carrier Proteins/*metabolism ; Cytosol/analysis ; Deferoxamine/pharmacology ; Ferritins/*genetics ; Globins/genetics ; Humans ; Iron/*pharmacology ; Liver/analysis ; *Nucleocytoplasmic Transport Proteins ; Protein Biosynthesis/drug effects ; RNA, Messenger/*metabolism ; *RNA-Binding Proteins
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  • 19
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-02-19
    Description: Point mutations were introduced into the overlapping trans-regulatory genes (tat-III and trs) of human immunodeficiency virus type 1 (HIV-1), and the mutants were evaluated for virus expression. The results showed that tat-III has a positive transacting role and is required for transcriptional activation. A chain terminating mutation early in the trs gene resulted in an increase in transcription of viral messenger RNA as measured by nuclear transcription experiments, but only one major species of viral messenger RNA (1.8 kilobases) was detected, and little or no viral structural proteins were made. Thus, the trs gene product is essential for expression of virus structural proteins but, at the same time, may have a negative trans-regulatory role in transcription. Cotransfection of the point mutant proviruses defective in tat or trs with each other or with a complementary DNA clone containing tat and trs sequences restored the normal transcription pattern and subsequent virus production.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sadaie, M R -- Benter, T -- Wong-Staal, F -- New York, N.Y. -- Science. 1988 Feb 19;239(4842):910-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Tumor Cell Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3277284" target="_blank"〉PubMed〈/a〉
    Keywords: Acetyltransferases/genetics ; Acquired Immunodeficiency Syndrome/immunology ; Animals ; Cell Line ; Chloramphenicol O-Acetyltransferase ; Codon ; DNA/genetics ; *Genes, Regulator ; *Genes, Viral ; HIV/*genetics ; Humans ; Immunosorbent Techniques ; *Mutation ; Plasmids ; RNA, Messenger/genetics ; RNA, Viral/genetics ; Transcription, Genetic ; Transfection
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  • 20
    Publication Date: 1988-03-25
    Description: Peroxisomes are apparently missing in Zellweger syndrome; nevertheless, some of the integral membrane proteins of the organelle are present. Their distribution was studied by immunofluorescence microscopy. In control fibroblasts, peroxisomes appeared as small dots. In Zellweger fibroblasts, the peroxisomal membrane proteins were located in unusual empty membrane structures of larger size. These results suggest that the primary defect in this disease may be in the mechanism for import of matrix proteins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Santos, M J -- Imanaka, T -- Shio, H -- Small, G M -- Lazarow, P B -- AM19394/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1988 Mar 25;239(4847):1536-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Rockefeller University, New York, NY 10021.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3281254" target="_blank"〉PubMed〈/a〉
    Keywords: Fibroblasts/analysis/ultrastructure ; Fluorescent Antibody Technique ; Genetic Diseases, Inborn/metabolism/*pathology ; Humans ; Intracellular Membranes/analysis/pathology ; Membrane Proteins/*analysis ; Microbodies/analysis/*pathology ; Organoids/analysis/pathology ; Syndrome
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  • 21
    Publication Date: 1988-09-16
    Description: Alzheimer's disease is the most common form of dementia among the elderly population. Although the etiology is unknown, inheritance plays a role in the pathogenesis of the disease. Recent work indicates that an autosomal dominant gene for Alzheimer's disease is located on chromosome 21 at band q21. In the present study of a group of autopsy-documented kindreds, no evidence for linkage was found between familial Alzheimer's disease (FAD) and chromosome 21q21 markers (D21S1/D21S72 and the amyloid beta gene). Linkage to the D21S1/D21S72 locus was excluded at recombination fractions (theta) up to 0.17. Linkage to the amyloid gene was excluded at theta = 0.10. Apparent recombinants were noted in two families for the amyloid gene and in five families for the D21S1/D21S72 locus. These data indicate that FAD is genetically heterogeneous.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schellenberg, G D -- Bird, T D -- Wijsman, E M -- Moore, D K -- Boehnke, M -- Bryant, E M -- Lampe, T H -- Nochlin, D -- Sumi, S M -- Deeb, S S -- AG 00057/AG/NIA NIH HHS/ -- AG 05136/AG/NIA NIH HHS/ -- GM 15253/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1988 Sep 16;241(4872):1507-10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Neurology, University of Washington, Seattle 98195.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3420406" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/*genetics ; Chromosome Mapping ; *Chromosomes, Human, Pair 21 ; Genetic Linkage ; Humans
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  • 22
    Publication Date: 1988-02-12
    Description: Recent reports of stratospheric ozone depletion have prompted concerns about the levels of solar ultraviolet radiation that reach the earth's surface. Since 1974 a network of ground-level monitoring stations in the United States has tracked measurements of biologically effective ultraviolet radiation (UVB, 290 to 330 nanometers). The fact that no increases of UVB have been detected at ground levels from 1974 to 1985 suggests that meteorological, climatic, and environmental factors in the troposphere may play a greater role in attenuating UVB radiation than was previously suspected.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Scotto, J -- Cotton, G -- Urbach, F -- Berger, D -- Fears, T -- New York, N.Y. -- Science. 1988 Feb 12;239(4841 Pt 1):762-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biostatistics Branch, National Cancer Institute, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3340857" target="_blank"〉PubMed〈/a〉
    Keywords: Humans ; Melanoma/etiology ; Meteorological Concepts ; Neoplasms, Radiation-Induced/etiology ; Skin Neoplasms/etiology ; *Sunlight/adverse effects ; *Ultraviolet Rays ; United States
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  • 23
    Publication Date: 1988-02-26
    Description: The inheritance of particular alleles of major histocompatibility complex class II genes increases the risk for various human autoimmune diseases; however, only a small percentage of individuals having an allele associated with susceptibility develop disease. The identification of allelic variants more precisely correlated with disease susceptibility would greatly facilitate clinical screening and diagnosis. Oligonucleotide-primed gene amplification in vitro was used to determine the nucleotide sequence of a class II variant found almost exclusively in patients with the autoimmune skin disease pemphigus vulgaris. In addition to clinical implications, the disease-restricted distribution of this variant should provide insight into the molecular mechanisms underlying associations between diseases and HLA-class II genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sinha, A A -- Brautbar, C -- Szafer, F -- Friedmann, A -- Tzfoni, E -- Todd, J A -- Steinman, L -- McDevitt, H O -- New York, N.Y. -- Science. 1988 Feb 26;239(4843):1026-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical Microbiology, Stanford University, CA 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2894075" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Autoimmune Diseases/*genetics/immunology ; Base Sequence ; DNA/genetics ; Gene Amplification ; Genetic Variation ; HLA-D Antigens/*genetics ; HLA-DQ Antigens/*genetics/immunology ; HLA-DR Antigens/immunology ; Humans ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Pemphigus/*genetics/immunology ; Polymorphism, Restriction Fragment Length
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  • 24
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-06-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sladek, J R Jr -- Shoulson, I -- New York, N.Y. -- Science. 1988 Jun 10;240(4858):1386-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Medicine and Dentistry, University of Rochester.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3375820" target="_blank"〉PubMed〈/a〉
    Keywords: Aborted Fetus ; Animal Experimentation ; Animals ; Brain/physiopathology ; Disease Models, Animal ; *Embryo Research ; *Fetal Research ; Humans ; Neurons/*transplantation ; Parkinson Disease/physiopathology/*therapy ; Research Design ; Therapeutic Human Experimentation ; *Tissue and Organ Procurement ; Parkinson's disease should not repeat the mistakes made by adrenal autograft ; investigators, who operated on far more humans than on nonhuman primates because ; of a single unconfirmed report of dramatic improvement in two Mexican patients. ; Citing extensive data from experimental transplants conducted as early as 1944, ; the authors argue that, until a sufficient number of animal studies have been ; performed to answer many crucial questions about human fetal tissue transplants, ; researchers should refrain from experimenting on human patients.
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  • 25
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-06-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Slamon, D J -- Clark, G M -- New York, N.Y. -- Science. 1988 Jun 24;240(4860):1795-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, UCLA School of Medicine 90024.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3289120" target="_blank"〉PubMed〈/a〉
    Keywords: Breast Neoplasms/*genetics ; Chromosomes, Human, Pair 17 ; DNA, Neoplasm/genetics ; *Gene Amplification ; Humans ; Neoplasm Proteins/genetics ; Phosphoproteins/genetics ; Proto-Oncogene Proteins/*genetics ; Tumor Suppressor Protein p53
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  • 26
    Publication Date: 1988-07-29
    Description: An octamer DNA sequence plays a critical role in directing transcription of immunoglobulin genes in B lymphocytes. A new technique of direct binding of radioactive DNA was used to screen a complementary DNA expression library from the BJAB cell line in lambda gt11 phage to derive molecular cDNA clones representing a putative B lymphocyte-specific octamer binding protein. The plaques were screened with DNA containing four copies of the octamer sequence and positive phage recombinants were identified. The fusion protein produced on inducing a lysogen of one phage bound to a monomeric octamer probe. The cDNA insert from this phage hybridized to messenger RNA found in B lymphocytes, but not in most other cells. Thus, this cDNA derives from a gene (oct-2) that specifies an octamer binding protein expressed preferentially in B lymphocytes, proving that, for at least one gene, a cell-specific transcription factor exists and its amount is controlled through messenger RNA availability.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Staudt, L M -- Clerc, R G -- Singh, H -- LeBowitz, J H -- Sharp, P A -- Baltimore, D -- P01-CA42063/CA/NCI NIH HHS/ -- P30-CAL4051/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1988 Jul 29;241(4865):577-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research, Cambridge, MA 02142.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3399892" target="_blank"〉PubMed〈/a〉
    Keywords: Cloning, Molecular ; DNA/genetics ; DNA-Binding Proteins/*physiology ; Gene Expression Regulation ; *Genes ; Humans ; Lymphocytes/*physiology ; *Regulatory Sequences, Nucleic Acid ; Transcription Factors/*physiology
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  • 27
    Publication Date: 1988-11-11
    Description: Increasing mortality in intravenous (IV) drug users not reported to surveillance as acquired immunodeficiency syndrome (AIDS) has occurred in New York City coincident with the AIDS epidemic. From 1981 to 1986, narcotics-related deaths increased on average 32% per year from 492 in 1981 to 1996 in 1986. This increase included deaths from AIDS increasing from 0 to 905 and deaths from other causes, many of which were infectious diseases, increasing from 492 to 1091. Investigations of these deaths suggest a causal association with human immunodeficiency virus (HIV) infection. These deaths may represent a spectrum of HIV-related disease that has not been identified through AIDS surveillance and has resulted in a large underestimation of the impact of AIDS on IV drug users and blacks and Hispanics.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stoneburner, R L -- Des Jarlais, D C -- Benezra, D -- Gorelkin, L -- Sotheran, J L -- Friedman, S R -- Schultz, S -- Marmor, M -- Mildvan, D -- Maslansky, R -- New York, N.Y. -- Science. 1988 Nov 11;242(4880):916-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉AIDS Research Unit, New York City Department of Health, NY 10013.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3187532" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/complications/*epidemiology/microbiology ; Cause of Death ; Endocarditis/complications ; Hiv ; HIV Seropositivity ; Homosexuality ; Humans ; Male ; New York City ; Pneumonia/complications ; Substance-Related Disorders/*complications/epidemiology/mortality ; Tuberculosis/complications
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  • 28
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-09-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nussenzweig, R S -- Nussenzweig, V -- New York, N.Y. -- Science. 1988 Sep 9;241(4871):1278.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3413491" target="_blank"〉PubMed〈/a〉
    Keywords: Humans ; Malaria/*prevention & control ; Vaccines, Synthetic
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  • 29
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-09-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sun, M -- New York, N.Y. -- Science. 1988 Sep 16;241(4872):1427.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3420400" target="_blank"〉PubMed〈/a〉
    Keywords: *Acquired Immunodeficiency Syndrome ; Humans ; National Institutes of Health (U.S.)/*economics ; Research Support as Topic ; United States
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  • 30
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-07-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McLaren, D S -- New York, N.Y. -- Science. 1988 Jul 22;241(4864):399-400.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3393905" target="_blank"〉PubMed〈/a〉
    Keywords: Energy Metabolism ; Female ; Humans ; *Longevity ; Male ; Sex Factors
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  • 31
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-01-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sun, M -- New York, N.Y. -- Science. 1988 Jan 15;239(4837):252.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3276002" target="_blank"〉PubMed〈/a〉
    Keywords: Breast Neoplasms/*etiology/prevention & control ; Clinical Trials as Topic/economics ; Dietary Fats/administration & dosage/*adverse effects ; Female ; Humans ; National Institutes of Health (U.S.) ; United States
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  • 32
    Publication Date: 1988-11-04
    Description: Studies in animals suggest that fetal neural grafts might restore lost neurological function in Parkinson's disease. In monkeys, such grafts survive for many months and reverse signs of parkinsonism, without attendant graft rejection. The successful and reliable application of a similar transplantation procedure to human patients, however, will require neural tissue obtained from human fetal cadavers, with demonstrated cellular identity, viability, and biological safety. In this report, human fetal neural tissue was successfully grafted into the brains of monkeys. Neural tissue was collected from human fetal cadavers after 9 to 12 weeks of gestation and cryopreserved in liquid nitrogen. Viability after up to 2 months of storage was demonstrated by cell culture and by transplantation into monkeys. Cryopreservation and storage of human fetal neural tissue would allow formation of a tissue bank. The stored cells could then be specifically tested to assure their cellular identity, viability, and bacteriological and virological safety before clinical use. The capacity to collect and maintain viable human fetal neural tissue would also facilitate research efforts to understand the development and function of the human brain and provide opportunities to study neurological diseases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Redmond, D E Jr -- Naftolin, F -- Collier, T J -- Leranth, C -- Robbins, R J -- Sladek, C D -- Roth, R H -- Sladek, J R Jr -- New York, N.Y. -- Science. 1988 Nov 4;242(4879):768-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychiatry, Yale University School of Medicine, New Haven, CT 06510.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2903552" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Survival ; Cells, Cultured ; Cercopithecus ; Fetus ; Freezing ; Humans ; Male ; Mesencephalon/cytology/embryology/enzymology/*transplantation ; Preservation, Biological ; Transplantation, Heterologous ; Tyrosine 3-Monooxygenase/metabolism
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  • 33
    Publication Date: 1988-08-05
    Description: The human pS2 gene is specifically expressed under estrogen transcriptional control in a subclass of estrogen receptor-containing human breast cancer cells. The pS2 gene encodes an 84-amino acid protein that is secreted after signal peptide cleavage. The distribution of pS2 protein in normal human tissues was studied with antibodies to pS2; pS2 was specifically expressed and secreted by mucosa cells of the normal stomach antrum and body of both female and male individuals. Moreover, no estrogen receptor could be detected in these cells, indicating that pS2 gene expression is estrogen-independent in the stomach. The function of the pS2 protein in the gastrointestinal tract is unknown. However, the pS2 protein is similar in sequence to a porcine pancreatic protein that has been shown to inhibit gastrointestinal motility and gastric secretion.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rio, M C -- Bellocq, J P -- Daniel, J Y -- Tomasetto, C -- Lathe, R -- Chenard, M P -- Batzenschlager, A -- Chambon, P -- New York, N.Y. -- Science. 1988 Aug 5;241(4866):705-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉CNRS et U. 184 de l'INSERM, Institut de Chimie Biologique, Faculte de Medecine, Strasbourg, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3041593" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antibodies, Monoclonal ; Breast Neoplasms/*metabolism ; Estrogens/pharmacology ; Exons ; Female ; Gastric Mucosa/*metabolism ; *Gene Expression Regulation ; Histocytochemistry ; Humans ; Immunoenzyme Techniques ; Male ; Molecular Sequence Data ; Neoplasm Proteins/*biosynthesis/genetics/secretion ; *Proteins ; RNA, Messenger/metabolism ; Receptors, Estrogen/metabolism ; Sequence Homology, Nucleic Acid ; Tissue Distribution ; Tumor Cells, Cultured ; Tumor Suppressor Proteins
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  • 34
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-01-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sun, M -- New York, N.Y. -- Science. 1988 Jan 15;239(4837):250.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3336783" target="_blank"〉PubMed〈/a〉
    Keywords: Air Pollutants, Radioactive/adverse effects ; Humans ; Lung Neoplasms/*etiology ; Radon/*adverse effects ; Risk Factors ; Smoking/adverse effects
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  • 35
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-06-03
    Description: Diagnostic systems of several kinds are used to distinguish between two classes of events, essentially "signals" and "noise". For them, analysis in terms of the "relative operating characteristic" of signal detection theory provides a precise and valid measure of diagnostic accuracy. It is the only measure available that is uninfluenced by decision biases and prior probabilities, and it places the performances of diverse systems on a common, easily interpreted scale. Representative values of this measure are reported here for systems in medical imaging, materials testing, weather forecasting, information retrieval, polygraph lie detection, and aptitude testing. Though the measure itself is sound, the values obtained from tests of diagnostic systems often require qualification because the test data on which they are based are of unsure quality. A common set of problems in testing is faced in all fields. How well these problems are handled, or can be handled in a given field, determines the degree of confidence that can be placed in a measured value of accuracy. Some fields fare much better than others.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Swets, J A -- New York, N.Y. -- Science. 1988 Jun 3;240(4857):1285-93.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉BBN Laboratories Incorporated, Cambridge, MA 02238.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3287615" target="_blank"〉PubMed〈/a〉
    Keywords: *Diagnosis ; Diagnostic Errors ; Diagnostic Imaging/standards ; Humans ; Quality Control
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  • 36
    Publication Date: 1988-10-14
    Description: Structural changes of the human retinoblastoma gene have been demonstrated previously in retinoblastoma and some clinically related tumors including osteosarcoma. Structural aberrations of the retinoblastoma locus (RB1) were observed in 25% of breast tumor cell lines studied and 7% of the primary tumors. These changes include homozygous internal deletions and total deletion of RB1; a duplication of an exon was observed in one of the cell lines. In all cases, structural changes either resulted in the absence or truncation of the RB1 transcript. No obvious defect in RB1 was detected by DNA blot analysis in primary tumors or cell lines from Wilms' tumor, cervical carcinoma, or hepatoma. These results further support the concept that the human RB1 gene has pleiotropic effects on specific types of cancer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉T'Ang, A -- Varley, J M -- Chakraborty, S -- Murphree, A L -- Fung, Y K -- CA44754/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1988 Oct 14;242(4876):263-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Hematology/Oncology, Childrens Hospital of Los Angeles, CA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3175651" target="_blank"〉PubMed〈/a〉
    Keywords: Breast Neoplasms/*genetics ; Chromosome Aberrations ; Chromosomes, Human, Pair 13 ; DNA/genetics ; DNA Probes ; Exons ; Eye Neoplasms/*genetics ; Female ; *Gene Rearrangement ; Homozygote ; Humans ; Lymphatic Metastasis ; Menopause ; Mutation ; Nucleic Acid Hybridization ; Retinoblastoma/*genetics ; Risk Factors ; Tumor Cells, Cultured
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  • 37
    Publication Date: 1988-07-15
    Description: In 1979, a mass poisoning occurred in Taiwan from cooking oil contaminated by thermally degraded polychlorinated biphenyls. Because these chemicals persist in human tissue, children born to female patients after the outbreak were exposed in utero. In 1985, 117 children born to affected women and 108 unexposed controls were examined and evaluated. The exposed children were shorter and lighter than controls; they had abnormalities of gingiva, skin, nails, teeth, and lungs more frequently than did controls. The exposed children showed delay of developmental milestones, deficits on formal developmental testing, and abnormalities on behavioral assessment. These findings are most consistent with a generalized disorder of ectodermal tissue. This syndrome is one of very few documented to result from transplacental exposure to pollutant chemicals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rogan, W J -- Gladen, B C -- Hung, K L -- Koong, S L -- Shih, L Y -- Taylor, J S -- Wu, Y C -- Yang, D -- Ragan, N B -- Hsu, C C -- New York, N.Y. -- Science. 1988 Jul 15;241(4863):334-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3133768" target="_blank"〉PubMed〈/a〉
    Keywords: Conjunctivitis/chemically induced/congenital ; Female ; Growth Disorders/chemically induced ; Humans ; Lactation ; Maternal-Fetal Exchange ; Nails, Malformed ; Oils/*adverse effects ; Pigmentation Disorders/chemically induced/congenital ; Polychlorinated Biphenyls/*poisoning ; Pregnancy ; Taiwan
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  • 38
    Publication Date: 1988-03-11
    Description: The expression of human immunodeficiency virus (HIV) after T cell activation is regulated by NF-kappa B, an inducible DNA-binding protein that stimulates transcription. Proteins encoded by a variety of DNA viruses are also able to activate expression from the HIV enhancer. To determine how this activation occurs, specific genes from herpes simplex virus type 1 and adenovirus that activate HIV in T lymphoma cells have been identified. The cis-acting regulatory sequences in the HIV enhancer that mediate their effect have also been characterized. The relevant genes are those for ICP0-an immediate-early product of herpes simplex virus type 1-and the form of E1A encoded by the 13S messenger RNA of adenovirus. Activation of HIV by adenovirus E1A was found to depend on the TATA box, whereas herpesvirus ICP0 did not work through a single defined cis-acting element. These findings suggest multiple pathways that can be used to bypass normal cellular activation of HIV, and they raise the possibility that infection by herpes simplex virus or adenovirus may directly contribute to the activation of HIV in acquired immunodeficiency syndrome by mechanisms independent of antigenic stimulation in T cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nabel, G J -- Rice, S A -- Knipe, D M -- Baltimore, D -- AI20530/AI/NIAID NIH HHS/ -- F32GM11224/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1988 Mar 11;239(4845):1299-302.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research, Cambridge, MA 02142.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2830675" target="_blank"〉PubMed〈/a〉
    Keywords: Adenoviruses, Human/genetics ; *Enhancer Elements, Genetic ; Genes, Regulator ; *Genes, Viral ; HIV/*genetics/growth & development ; Humans ; *Lymphocyte Activation ; Plasmids ; Simplexvirus/genetics ; T-Lymphocytes/*immunology ; Transcription, Genetic ; Virus Activation
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  • 39
    Publication Date: 1988-05-20
    Description: Class II major histocompatibility (MHC) molecules have an immunoregulatory role. These cell-surface glycoproteins present fragments of protein antigens (or peptides) to thymus-derived lymphocytes (T cells). Nucleotide sequence polymorphism in the genes that encode the class II MHC products determines the specificity of the immune response and is correlated with the development of autoimmune diseases. This study identifies certain class II polymorphic amino acid residues that are strongly associated with susceptibility to insulin-dependent diabetes mellitus, rheumatoid arthritis, and pemphigus vulgaris. These findings implicate particular class II MHC isotypes in susceptibility to each disease and suggest new prophylactic and therapeutic strategies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Todd, J A -- Acha-Orbea, H -- Bell, J I -- Chao, N -- Fronek, Z -- Jacob, C O -- McDermott, M -- Sinha, A A -- Timmerman, L -- Steinman, L -- New York, N.Y. -- Science. 1988 May 20;240(4855):1003-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical Microbiology, Stanford University, CA 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3368786" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Arthritis, Rheumatoid/immunology ; Autoantibodies/*genetics ; Autoimmune Diseases/*genetics ; Diabetes Mellitus, Type 1/immunology ; HLA-D Antigens/*genetics ; Humans ; Major Histocompatibility Complex ; Molecular Sequence Data ; Pemphigus/immunology
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  • 40
    Publication Date: 1988-01-29
    Description: Soluble products of either Epstein-Barr virus (EBV)-infected B cells or activated monocytes promote the proliferation of EBV-infected B cells and permit their growth at low cell densities. This suggests that growth factors are important for B-cell immortalization by EBV. In this study, a monocyte-derived factor that promotes the growth of EBV-infected b cells was purified and identified as interferon-beta 2 (IFN-beta 2), which is also known as 26-kilodalton protein, B-cell differentiation factor (BSF-2), and interleukin-6 (IL-6). The purified protein has a specific activity of approximately 4 X 10(7) units per milligram of protein in assays of B-cell growth. Thus, IFN-beta 2/BSF-2 is a B-cell growth factor that promotes the proliferation of human B cells infected with EBV.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tosato, G -- Seamon, K B -- Goldman, N D -- Sehgal, P B -- May, L T -- Washington, G C -- Jones, K D -- Pike, S E -- AI-16262/AI/NIAID NIH HHS/ -- CA-44365/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1988 Jan 29;239(4839):502-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biochemistry and Biophysics, Food and Drug Administration, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2829354" target="_blank"〉PubMed〈/a〉
    Keywords: B-Lymphocytes/*cytology/microbiology ; Cell Count ; Cell Division ; Cells, Cultured ; Electrophoresis, Polyacrylamide Gel ; Herpesvirus 4, Human/*physiology ; Humans ; Immunoassay ; Interleukin-6 ; Interleukins/isolation & purification/*pharmacology ; Monocytes/*metabolism
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  • 41
    Publication Date: 1988-11-25
    Description: The gp120 envelope glycoprotein of the human immunodeficiency virus (HIV), which is expressed on the surface of many HIV-infected cells, binds to the cell surface molecule CD4. Soluble derivatives of recombinant CD4 (rCD4) that bind gp120 with high affinity are attractive vehicles for targeting a cytotoxic reagent to HIV-infected cells. Soluble rCD4 was conjugated to the active subunit of the toxin ricin. This conjugate killed HIV-infected H9 cells but was 1/1000 as toxic to uninfected H9 cells (which do not express gp120) and was not toxic to Daudi cells (which express major histocompatibility class II antigens, the putative natural ligand for cell surface CD4). Specific killing of infected cells can be blocked by rgp120, rCD4, or a monoclonal antibody to the gp120 binding site on CD4.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Till, M A -- Ghetie, V -- Gregory, T -- Patzer, E J -- Porter, J P -- Uhr, J W -- Capon, D J -- Vitetta, E S -- CA-09082/CA/NCI NIH HHS/ -- CA-28149/CA/NCI NIH HHS/ -- CA-41081/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1988 Nov 25;242(4882):1166-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology, University of Texas Southwestern Medical Center, Dallas 75235.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2847316" target="_blank"〉PubMed〈/a〉
    Keywords: Antigens, Differentiation, T-Lymphocyte/*administration & dosage/immunology ; Binding Sites ; Cell Line ; Cell Survival ; Electrophoresis, Polyacrylamide Gel ; HIV/*immunology ; HIV Envelope Protein gp120 ; Histocompatibility Antigens Class II/immunology ; Humans ; Recombinant Proteins/administration & dosage/immunology ; Retroviridae Proteins/*immunology/metabolism ; Ricin/metabolism/*pharmacology ; T-Lymphocytes/immunology/microbiology/physiology
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  • 42
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-11-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Norman, C -- New York, N.Y. -- Science. 1988 Nov 18;242(4881):1002-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3194749" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome ; Humans ; Legislation as Topic ; Plants, Toxic ; Politics ; *Science ; Tobacco ; United States
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  • 43
    Publication Date: 1988-07-08
    Description: Molecules involved in the antigen receptor-dependent regulation of early T cell activation genes were investigated with the use of functional sequences of the T cell activation-specific enhancer of interleukin-2 (IL-2). One of these sequences forms a protein complex, NFAT-1, specifically with nuclear extracts of activated T cells. This complex appeared 10 to 25 minutes before the activation of the IL-2 gene. Studies with inhibitors of protein synthesis indicated that the time of synthesis of the activator of the IL-2 gene in Jurkat T cells corresponds to the time of appearance of NFAT-1. NFAT-1, or a very similar protein, bound functional sequences of the long terminal repeat (LTR) of the human immunodeficiency virus type 1; the LTR of this virus is known to be stimulated during early T cell activation. The binding site for this complex activated a linked promoter after transfection into antigen receptor-activated T cells but not other cell types. These characteristics suggest that NFAT-1 transmits signals initiated at the T cell antigen receptor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shaw, J P -- Utz, P J -- Durand, D B -- Toole, J J -- Emmel, E A -- Crabtree, G R -- CA 01048/CA/NCI NIH HHS/ -- CA 39612/CA/NCI NIH HHS/ -- HL 33942/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1988 Jul 8;241(4862):202-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Stanford University, CA 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3260404" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; DNA-Binding Proteins/*physiology ; *Enhancer Elements, Genetic ; HIV/genetics ; Humans ; In Vitro Techniques ; Interleukin-2/genetics ; *Lymphocyte Activation ; Nuclear Proteins/*physiology ; Receptors, Antigen, T-Cell/*physiology ; *Regulatory Sequences, Nucleic Acid ; T-Lymphocytes/*physiology ; Transcription Factors/*physiology
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  • 44
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-06-10
    Description: First brought to scientific attention as infectious cancer-causing agents nearly 80 years ago, retroviruses are popular in contemporary biology for many reasons. (i) The virus life cycle includes several events--in particular, reverse transcription of the viral RNA genome into DNA, orderly integration of viral DNA into host chromosomes, and utilization of host mechanisms for gene expression in response to viral signals--which are broadly informative about eukaryotic cells and viruses. (ii) Retroviral oncogenesis usually depends on transduction or insertional activation of cellular genes, and isolation of those genes has provided the scientific community with many of the molecular components now implicated in the control of normal growth and in human cancer. (iii) Retroviruses include many important veterinary pathogens and two recently discovered human pathogens, the causative agents of the acquired immunodeficiency syndrome (AIDS) and adult T cell leukemia/lymphoma. (iv) Retroviruses are genetic vectors in nature and can be modified to serve as genetic vectors for both experimental and therapeutic purposes. (v) Insertion of retroviral DNA into host chromosomes can be used to mark cell lineages and to make developmental mutants. Progress in these and other areas of retrovirus-related biology has been enormous during the past two decades, but many practical and theoretical problems remain to be solved.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Varmus, H -- New York, N.Y. -- Science. 1988 Jun 10;240(4858):1427-35.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, School of Medicine, University of California, San Francisco 94143.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3287617" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Genes, Viral ; Humans ; Models, Biological ; *Research Design ; *Retroviridae/genetics/pathogenicity
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  • 45
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-03-25
    Description: The production of therapeutic human monoclonal antibodies by hybridoma technology has proved difficult, and this has prompted the "humanizing" of mouse monoclonal antibodies by recombinant DNA techniques. It was shown previously that the binding site for a small hapten could be grafted from the heavy-chain variable domain of a mouse antibody to that of a human myeloma protein by transplanting the hypervariable loops. It is now shown that a large binding site for a protein antigen (lysozyme) can also be transplanted from mouse to human heavy chain. The success of such constructions may be facilitated by an induced-fit mechanism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Verhoeyen, M -- Milstein, C -- Winter, G -- New York, N.Y. -- Science. 1988 Mar 25;239(4847):1534-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council Laboratory of Molecular Biology, Cambridge, England.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2451287" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Antibodies, Monoclonal/genetics/immunology ; Base Sequence ; Binding Sites, Antibody ; Binding, Competitive ; Cloning, Molecular ; DNA, Recombinant ; Epitopes/immunology ; Humans ; Immunoglobulin G/genetics/immunology ; Immunoglobulin Variable Region/genetics ; Mice ; Molecular Sequence Data ; Muramidase/*immunology ; Plasmids ; Recombinant Proteins ; Transfection
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  • 46
    Publication Date: 1988-12-23
    Description: The ras p21 GTPase-activating protein (GAP) was purified from human placental tissue. Internal amino acid sequence was obtained from this 120,000-dalton protein and, by means of this sequence, two types of complementary DNA clones were isolated and characterized. One type encoded GAP with a predicted molecular mass of 116,000 daltons and 96% identity with bovine GAP. The messenger RNA of this GAP was detected in human lung, brain, liver, leukocytes, and placenta. The second type appeared to be generated by a differential splicing mechanism and encoded a novel form of GAP with a predicted molecular mass of 100,400 daltons. This protein lacks the hydrophobic amino terminus characteristic of the larger species, but retains GAP activity. The messenger RNA of this type was abundantly expressed in placenta and in several human cell lines, but not in adult tissues.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Trahey, M -- Wong, G -- Halenbeck, R -- Rubinfeld, B -- Martin, G A -- Ladner, M -- Long, C M -- Crosier, W J -- Watt, K -- Koths, K -- New York, N.Y. -- Science. 1988 Dec 23;242(4886):1697-700.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Cetus Corp., Emeryville, CA 94608.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3201259" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Brain Chemistry ; *Cloning, Molecular ; DNA/*genetics/isolation & purification ; Female ; GTPase-Activating Proteins ; Gene Expression Regulation ; Humans ; Leukocytes/analysis ; Liver/analysis ; Lung/analysis ; Molecular Sequence Data ; Molecular Weight ; Nucleic Acid Hybridization ; Oligonucleotide Probes ; Placenta/*analysis ; Pregnancy ; Proteins/*genetics/isolation & purification ; RNA, Messenger/analysis/genetics ; Sequence Homology, Nucleic Acid ; ras GTPase-Activating Proteins
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  • 47
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-03-25
    Description: The low population densities and impermanent settlements of Amazonian Indians are often interpreted as adaptations to a fauna that offers limited protein resources and is rapidly depleted by hunting. Data spanning the 10-year life cycle of one northwestern Amazonian settlement show that variations in hunt yields result from temporal variations in peccary (Tayassu pecari and T. tajacu) kills that appear extrinsic to native population size. After 10 years, hunting success remained high and the kill rates for most prey did not suggest depletion. An array of environmental factors accounts for the incipient settlement relocation observed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vickers, W T -- 1FOL MH58552-01/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1988 Mar 25;239(4847):1521-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anthropology and Sociology, Florida International University, Miami 33199.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3353699" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cultural Characteristics ; *Culture ; Ecuador ; *Food Supply ; Humans ; *Indians, South American ; Meat ; Population Density
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  • 48
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-06-17
    Description: Unequal crossing-over within a head-to-tail tandem array of the homologous red and green visual pigment genes has been proposed to explain the observed variation in green-pigment gene number among individuals and the prevalence of red-green fusion genes among color-blind subjects. This model was tested by probing the structure of the red and green pigment loci with long-range physical mapping techniques. The loci were found to constitute a gene array with an approximately 39-kilobase repeat length. The position of the red pigment gene at the 5' edge of the array explains its lack of variation in copy number. Restriction maps of the array in four individuals who differ in gene number are consistent with a head-to-tail configuration of the genes. These results provide physical evidence in support of the model and help to explain the high incidence of color blindness in the human population.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vollrath, D -- Nathans, J -- Davis, R W -- GM21891/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1988 Jun 17;240(4859):1669-72.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Stanford University School of Medicine, CA 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2837827" target="_blank"〉PubMed〈/a〉
    Keywords: Color Vision Defects/*genetics ; Crossing Over, Genetic ; DNA/genetics ; DNA Restriction Enzymes ; Electrophoresis, Agar Gel ; Exons ; Female ; Genetic Variation ; Humans ; Male ; Nucleic Acid Hybridization ; Recombination, Genetic ; Repetitive Sequences, Nucleic Acid ; Retinal Pigments/*genetics ; *X Chromosome
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  • 49
    Publication Date: 1988-12-02
    Description: Neutrophils kill microorganisms with oxygen radicals generated by an oxidase that uses the reduced form of nicotinamide adenine dinucleotide phosphate (NADPH) as substrate. This system requires both membrane and cytosolic components and is defective in patients with chronic granulomatous disease. A cytosolic complex capable of activating latent membrane oxidase was eluted from guanosine triphosphate-agarose and was used to raise polyclonal antiserum that recognized 47- and 67-kilodalton proteins. These proteins were restricted to the cytosol of myeloid cells. Both proteins were associated with NADPH oxidase-activating capacity when neutrophil cytosol was purified on nucleotide affinity matrices or molecular sizing columns. Neutrophils from patients with two different forms of autosomal chronic granulomatous disease lacked either the 47- or 67-kilodalton protein.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Volpp, B D -- Nauseef, W M -- Clark, R A -- AI 20866/AI/NIAID NIH HHS/ -- DM 01295/PHS HHS/ -- I01 BX000513/BX/BLRD VA/ -- R01 AI020866/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1988 Dec 2;242(4883):1295-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of Iowa, College of Medicine, Iowa City.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2848318" target="_blank"〉PubMed〈/a〉
    Keywords: Blotting, Western ; Cytosol/physiology ; GTP-Binding Proteins/physiology ; Granulomatous Disease, Chronic/*enzymology ; Humans ; Molecular Weight ; NADH, NADPH Oxidoreductases/*deficiency ; NADPH Oxidase ; Neutrophils/*enzymology ; Superoxides/metabolism
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  • 50
    Publication Date: 1988-06-10
    Description: Proteins undergo a series of nonenzymatic reactions with glucose over time to form advanced glycosylation end products (AGEs). Macrophages have a receptor that recognizes the AGE moiety and mediates the uptake and degradation of AGE proteins. This removal process is associated with the production and secretion of cachectin (tumor necrosis factor) and interleukin-1, two cytokines with diverse and seemingly paradoxical biological activities. The localized release and action of these cytokines could account for the coordinated removal and replacement of senescent extracellular matrix components in normal tissue homeostasis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vlassara, H -- Brownlee, M -- Manogue, K R -- Dinarello, C A -- Pasagian, A -- R01-AI15674/AI/NIAID NIH HHS/ -- R01-AM19655/AM/NIADDK NIH HHS/ -- R01-AM33861/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1988 Jun 10;240(4858):1546-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Medical Biochemistry, Rockefeller University, New York, NY 10021.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3259727" target="_blank"〉PubMed〈/a〉
    Keywords: Glycosylation ; Humans ; Interleukin-1/*biosynthesis/genetics ; Kinetics ; Membrane Glycoproteins/*physiology ; Monocytes/*metabolism ; Protein Biosynthesis ; RNA, Messenger/genetics ; Tumor Necrosis Factor-alpha/*biosynthesis/genetics
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  • 51
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-07-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Waldrop, M M -- New York, N.Y. -- Science. 1988 Jul 1;241(4861):27-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3388018" target="_blank"〉PubMed〈/a〉
    Keywords: Cognition/*physiology ; *Computer Simulation ; Humans ; *Models, Biological ; Problem Solving ; *Software
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  • 52
    Publication Date: 1988-04-01
    Description: Characterization of the host immune response to human immunodeficiency virus type 1 (HIV-1) is critical to the rational design of an effective AIDS vaccine. In this study, cytotoxic T lymphocytes (CTL) specific for HIV-1 reverse transcriptase (RNA-dependent DNA polymerase) were found in blood samples from HIV-1-infected individuals. CTL targets were prepared by immortalizing B cells from ten seropositive and six seronegative individuals, and then infecting these cells with recombinant vaccinia viruses containing HIV-1 genes. CTL directed against autologous B lymphoblasts expressing HIV-1 reverse transcriptase were detected in fresh blood samples from eight HIV-1 seropositive subjects, but in no seronegative controls. The effector cells were identified as major histocompatibility complex-restricted CD3+CD8+ lymphocytes. Because the HIV-1 pol gene is highly conserved among different isolates and generates both humoral and cellular immune responses, it bears consideration for inclusion in a candidate AIDS vaccine.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Walker, B D -- Flexner, C -- Paradis, T J -- Fuller, T C -- Hirsch, M S -- Schooley, R T -- Moss, B -- CA37461/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1988 Apr 1;240(4848):64-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Infectious Disease Unit, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2451288" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*immunology ; Antigens, Viral/immunology ; B-Lymphocytes/immunology ; DNA, Recombinant ; Genes, Viral ; HIV/*enzymology/genetics ; HIV Seropositivity ; HLA Antigens/immunology ; Humans ; RNA-Directed DNA Polymerase/*immunology ; T-Lymphocytes, Cytotoxic/*immunology ; Vaccinia virus/genetics/immunology ; Viral Vaccines/immunology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 53
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-07-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Waldrop, M M -- New York, N.Y. -- Science. 1988 Jul 15;241(4863):296-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3291119" target="_blank"〉PubMed〈/a〉
    Keywords: *Artificial Intelligence ; *Cognition ; Humans ; Learning ; Memory
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  • 54
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-06-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Walsh, J -- New York, N.Y. -- Science. 1988 Jun 10;240(4858):1397-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3375824" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Humans ; Mauritania ; Rift Valley Fever/*epidemiology/transmission
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  • 55
    Publication Date: 1988-12-09
    Description: Leber's hereditary optic neuropathy is a maternally inherited disease resulting in optic nerve degeneration and cardiac dysrhythmia. A mitochondrial DNA replacement mutation was identified that correlated with this disease in multiple families. This mutation converted a highly conserved arginine to a histidine at codon 340 in the NADH dehydrogenase subunit 4 gene and eliminated an Sfa NI site, thus providing a simple diagnostic test. This finding demonstrated that a nucleotide change in a mitochondrial DNA energy production gene can result in a neurological disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wallace, D C -- Singh, G -- Lott, M T -- Hodge, J A -- Schurr, T G -- Lezza, A M -- Elsas, L J 2nd -- Nikoskelainen, E K -- NS21328/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1988 Dec 9;242(4884):1427-30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Emory University School of Medicine, Atlanta, GA 30322.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3201231" target="_blank"〉PubMed〈/a〉
    Keywords: African Continental Ancestry Group ; Animals ; Arginine ; Cytochrome Reductases/*genetics ; DNA, Mitochondrial/*genetics ; European Continental Ancestry Group ; Female ; *Genes ; Georgia ; Hereditary Sensory and Motor Neuropathy/*genetics ; Histidine ; Humans ; Macromolecular Substances ; Male ; *Mutation ; NADH Dehydrogenase/*genetics ; Optic Atrophies, Hereditary/*genetics ; Pedigree ; Reference Values
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  • 56
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-04-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Walsh, J M -- New York, N.Y. -- Science. 1988 Apr 15;240(4850):268.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3353719" target="_blank"〉PubMed〈/a〉
    Keywords: Employment ; *Health Policy ; Humans ; National Institutes of Health (U.S.) ; Substance-Related Disorders/*prevention & control ; United States
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  • 57
    Publication Date: 1988-05-06
    Description: Acute promyelocytic leukemia (subtype M3) is characterized by malignant promyelocytes exhibiting an abundance of abnormally large or aberrant primary granules. Myeloperoxidase (MPO) activity of these azurophilic granules, as assessed by cytochemical staining, is unusually intense. In addition, M3 is universally associated with a chromosomal translocation, t(15;17)(q22;q11.2). In this report, the MPO gene was localized to human chromosome 17 (q12-q21), the region of the breakpoint on chromosome 17 in the t(15;17), by somatic cell hybrid analysis and in situ chromosomal hybridization. By means of MPO complementary DNA clones for in situ hybridization and Southern blot analysis, the effect of this specific translocation on the MPO gene was examined. In all cases of M3 examined, MPO is translocated to chromosome 15. Genomic blot analyses indicate rearrangement of MPO in leukemia cells of two of four cases examined. These findings suggest that MPO may be pivotal in the pathogenesis of acute promyelocytic leukemia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weil, S C -- Rosner, G L -- Reid, M S -- Chisholm, R L -- Lemons, R S -- Swanson, M S -- Carrino, J J -- Diaz, M O -- Le Beau, M M -- 1R01 CA44475/CA/NCI NIH HHS/ -- CA09273/CA/NCI NIH HHS/ -- CA16910/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1988 May 6;240(4853):790-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Northwestern University Medical Center, Chicago, IL 60611.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2896388" target="_blank"〉PubMed〈/a〉
    Keywords: Bone Marrow/analysis ; Chromosome Mapping ; Chromosomes, Human, Pair 15 ; Chromosomes, Human, Pair 17 ; DNA/genetics ; DNA Restriction Enzymes ; DNA, Recombinant ; Humans ; Leukemia, Myeloid, Acute/*enzymology/genetics ; Nucleic Acid Hybridization ; Peroxidase/*genetics ; Plasmids ; Polymorphism, Restriction Fragment Length ; *Translocation, Genetic
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  • 58
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-07-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pool, R -- New York, N.Y. -- Science. 1988 Jul 22;241(4864):407.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3393908" target="_blank"〉PubMed〈/a〉
    Keywords: Basophils/*physiology ; Dose-Response Relationship, Immunologic ; *Homeopathy ; Humans ; In Vitro Techniques ; Publishing
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  • 59
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-08-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pool, R -- New York, N.Y. -- Science. 1988 Aug 5;241(4866):658.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3399898" target="_blank"〉PubMed〈/a〉
    Keywords: Antibodies/immunology ; Fraud ; Humans ; Leukocytes/*immunology ; Publishing/*standards ; Research/*standards
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  • 60
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-08-05
    Description: Although the proteinase inhibitor alpha-2-antiplasmin (alpha 2AP) is known to control the activity of plasmin through rapid formation of stable complexes, it also efficiently inactivates chymotrypsin. These interactions are shown to occur at adjacent, overlapping sites so that plasmin attacks the inhibitor at an Arg364-Met365 peptide bond, while chymotrypsin interacts at a Met365-Ser366 sequence one residue downstream. Thus, a naturally occurring plasma serine proteinase inhibitor can have multiple specificities through interactions at adjacent sites. It also illustrates the potential flexibility of the reactive site loop in this class of inhibitors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Potempa, J -- Shieh, B H -- Travis, J -- New York, N.Y. -- Science. 1988 Aug 5;241(4866):699-700.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Molecular Biology, Jagiellonian University, Cracow, Poland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2456616" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Binding Sites ; Carboxypeptidase B ; Carboxypeptidases/metabolism ; Carboxypeptidases A ; Chromatography, Gel ; Chromatography, High Pressure Liquid ; Chymotrypsin/antagonists & inhibitors/metabolism ; Electrophoresis, Polyacrylamide Gel ; Humans ; Molecular Sequence Data ; Peptide Fragments/metabolism ; Protease Inhibitors ; alpha-2-Antiplasmin/*metabolism
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  • 61
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-10-21
    Description: The translational diffusion of wild-type and underglycosylated molecules of a membrane-integral glycoprotein the Ld class I major histocompatibility complex (MHC) antigen has been measured. The Ld mutant molecules, which lack one or more glycosylation sites, had larger translational diffusion coefficients, D, than did wild-type Ld molecules glycosylated at three sites. The increase in D is linear with loss of glycosylation. The highest value of D approaches that for translational diffusion of molecules constrained only by viscosity of the membrane lipid bilayer. These results indicate that the external portions of cell surface glycoproteins interact significantly with other nearby molecules.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wier, M -- Edidin, M -- AI-14584/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1988 Oct 21;242(4877):412-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, The Johns Hopkins University, Baltimore, MD 21218.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3175663" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line ; Cell Membrane/immunology ; Diffusion ; Glycosylation ; *Histocompatibility Antigens Class I/genetics ; Humans ; Lipid Bilayers ; Major Histocompatibility Complex ; Membrane Glycoproteins/genetics/*metabolism ; Mutation
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  • 62
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-07-08
    Description: How the immense population of neurons that constitute the human cerebral neocortex is generated from progenitors lining the cerebral ventricle and then distributed to appropriate layers of distinctive cytoarchitectonic areas can be explained by the radial unit hypothesis. According to this hypothesis, the ependymal layer of the embryonic cerebral ventricle consists of proliferative units that provide a proto-map of prospective cytoarchitectonic areas. The output of the proliferative units is translated via glial guides to the expanding cortex in the form of ontogenetic columns, whose final number for each area can be modified through interaction with afferent input. Data obtained through various advanced neurobiological techniques, including electron microscopy, immunocytochemistry, [3H]thymidine and receptor autoradiography, retrovirus gene transfer, neural transplants, and surgical or genetic manipulation of cortical development, furnish new details about the kinetics of cell proliferation, their lineage relationships, and phenotypic expression that favor this hypothesis. The radial unit model provides a framework for understanding cerebral evolution, epigenetic regulation of the parcellation of cytoarchitectonic areas, and insight into the pathogenesis of certain cortical disorders in humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rakic, P -- EY02593/EY/NEI NIH HHS/ -- NS14841/NS/NINDS NIH HHS/ -- NS22807/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1988 Jul 8;241(4862):170-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Yale University School of Medicine, New Haven, CT 06510.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3291116" target="_blank"〉PubMed〈/a〉
    Keywords: Afferent Pathways/physiology ; Animals ; Cell Division ; Cell Movement ; Cerebral Cortex/*anatomy & histology/growth & development/physiology ; Humans ; Neuronal Plasticity ; Neurons/physiology ; Visual Cortex/physiology
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  • 63
    Publication Date: 1988-04-29
    Description: Screening for human T-lymphotropic virus type I (HTLV-I) antibodies was performed on sera from 39,898 blood donors at eight blood centers in geographically distinct areas of the United States. Ten donors (0.025 percent) showed evidence of HTLV-I seropositivity by enzyme immunoassays; this was confirmed by protein immunoblot and radioimmunoprecipitation. Seroprevalence rates ranged from 0 to 0.10 percent at the locations sampled, with HTLV-I antibodies found predominantly in donors from the southeastern and southwestern United States. Matched case-control interviews and laboratory studies were performed on five seropositive women and two seropositive men who participated in an identity-linked collection of sera from a subset of 33,893 donors at six of the eight blood centers. Four of the women and both men are black; one woman is Caucasian. Four of the seven seropositive individuals admitted to prior intravenous drug abuse or sexual contact with an intravenous drug user. Sexual contact with native inhabitants of an HTLV-I endemic area was the only identified risk factor for one male. The distribution of HTLV-I antibodies in this U.S. blood donor sample corroborates the previously reported epidemiology of this agent and suggests that additional donor screening measures, including the testing of donated blood for HTLV-I markers, may be necessary to prevent the spread of HTLV-I to transfusion recipients.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Williams, A E -- Fang, C T -- Slamon, D J -- Poiesz, B J -- Sandler, S G -- Darr, W F 2nd -- Shulman, G -- McGowan, E I -- Douglas, D K -- Bowman, R J -- New York, N.Y. -- Science. 1988 Apr 29;240(4852):643-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉American Red Cross Jerome H. Holland Laboratory, Rockville, MD 20855.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2896386" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Antibodies, Viral/*analysis ; *Blood Donors ; Deltaretrovirus/*immunology/isolation & purification ; Deltaretrovirus Infections/diagnosis/*epidemiology/transmission ; Female ; Humans ; Immunoenzyme Techniques ; Immunosorbent Techniques ; Japan ; Male ; Middle Aged ; Risk Factors ; Sexual Partners ; Substance-Related Disorders ; United States
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  • 64
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-07-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wise, B L -- New York, N.Y. -- Science. 1988 Jul 29;241(4865):518.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3399882" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenal Glands/*transplantation ; Behavior/physiology ; Humans ; Nerve Tissue/*transplantation ; Parkinson Disease/physiopathology/*therapy
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  • 65
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-08-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wolpoff, M H -- Spuhler, J N -- Smith, F H -- Radovcic, J -- Pope, G -- Frayer, D W -- Eckhardt, R -- Clark, G -- New York, N.Y. -- Science. 1988 Aug 12;241(4867):772-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3136545" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Evolution ; Fossils ; Haplorhini/*genetics ; Humans
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  • 66
    Publication Date: 1988-01-01
    Description: The multiple copies of the human ribosomal RNA genes (rDNA) are arranged as tandem repeat clusters that map to the middle of the short arms of chromosomes 13, 14, 15, 21, and 22. Concerted evolution of the gene family is thought to be mediated by interchromosomal recombination between rDNA repeat units, but such events would also result in conservation of the sequences distal to the rDNA on these five pairs of chromosomes. To test this possibility, a DNA fragment spanning the junction between rDNA and distal flanking sequence has been cloned and characterized. Restriction maps, sequence data, and gene mapping studies demonstrate that (i) the rRNA genes are transcribed in a telomere-to-centromere direction, (ii) the 5' end of the cluster and the adjacent non-rDNA sequences are conserved on the five pairs of chromosomes, and (iii) the 5' end of the cluster is positioned about 3.7 kb upstream from the transcription initiation site of the first repeat unit. The data support a model of concerted evolution by interchromosomal recombination.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Worton, R G -- Sutherland, J -- Sylvester, J E -- Willard, H F -- Bodrug, S -- Dube, I -- Duff, C -- Kean, V -- Ray, P N -- Schmickel, R D -- HD-13506/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1988 Jan 1;239(4835):64-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genetics Department, Hospital for Sick Children, Toronto, Ontario, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3336775" target="_blank"〉PubMed〈/a〉
    Keywords: Biological Evolution ; Chromosomes, Human, Pair 13 ; Chromosomes, Human, Pair 14 ; Chromosomes, Human, Pair 15 ; Chromosomes, Human, Pair 21 ; Chromosomes, Human, Pair 22 ; Cloning, Molecular ; DNA, Ribosomal/*genetics ; Genes ; Humans ; RNA, Ribosomal/*genetics ; Sequence Homology, Nucleic Acid ; Transcription, Genetic
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  • 67
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-03-11
    Description: The insulin-like growth factor II (IGF-II) is a polypeptide hormone with structural homologies to insulin and insulin-like growth factor I (IGF-I). In contrast to these other hormones, the in vivo function of IGF-II is not known. Although IGF-II can stimulate a broad range of biological responses in isolated cells, these responses have usually been found to be mediated by the insulin and IGF-I receptors. Recently, the receptor for IGF-II was found to also be the receptor for mannose-6-phosphate. Since this latter receptor has been implicated in targeting of lysosomal enzymes, the question is now raised of whether the same protein can also mediate metabolic responses to IGF-II.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roth, R A -- New York, N.Y. -- Science. 1988 Mar 11;239(4845):1269-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, Stanford University School of Medicine, CA 94305-5332.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2964085" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carrier Proteins/*metabolism ; Hexosephosphates/*metabolism ; Humans ; Insulin-Like Growth Factor II/*metabolism ; Mannosephosphates/*metabolism ; Receptor, IGF Type 2 ; Receptor, Insulin/*metabolism ; Receptors, Somatomedin ; Somatomedins/*metabolism
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-06-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rubin, H -- New York, N.Y. -- Science. 1988 Jun 10;240(4858):1389-90.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3163849" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*etiology ; Antibodies, Viral/analysis ; HIV/immunology ; HIV Antibodies ; HIV Seropositivity ; Humans ; Risk Factors
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  • 69
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-09-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Russell, M -- New York, N.Y. -- Science. 1988 Sep 9;241(4871):1275-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University of Tennessee, Knoxville.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3413490" target="_blank"〉PubMed〈/a〉
    Keywords: *Air Pollution/adverse effects ; Humans ; *Ozone ; United States ; United States Environmental Protection Agency
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  • 70
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-03-25
    Description: In the search for principles of pattern generation in complex biological systems, an operational approach is presented that embraces both theory and experiment. The central mathematical concepts of self-organization in nonequilibrium systems (including order parameter dynamics, stability, fluctuations, and time scales) are used to show how a large number of empirically observed features of temporal patterns can be mapped onto simple low-dimensional (stochastic, nonlinear) dynamical laws that are derivable from lower levels of description. The theoretical framework provides a language and a strategy, accompanied by new observables, that may afford an understanding of dynamic patterns at several scales of analysis (including behavioral patterns, neural networks, and individual neurons) and the linkage among them.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schoner, G -- Kelso, J A -- MH42900-01/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1988 Mar 25;239(4847):1513-20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Complex Systems, Florida Atlantic University, Boca Raton 33431.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3281253" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Behavior/*physiology ; Electrophysiology ; Humans ; Models, Biological ; Motor Activity/physiology ; *Nervous System Physiological Phenomena ; Neurons/physiology
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  • 71
    Publication Date: 1988-03-18
    Description: A probe for the 5' end of the Duchenne muscular dystrophy (DMD) gene was used to study expression of the gene in normal human muscle, myogenic cell cultures, and muscle from patients with DMD. Expression was found in RNA from normal fetal muscle, adult cardiac and skeletal muscle, and cultured muscle after myoblast fusion. In DMD muscle, expression of this portion of the gene was also revealed by in situ RNA hybridization, particularly in regenerating muscle fibers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Scott, M O -- Sylvester, J E -- Heiman-Patterson, T -- Shi, Y J -- Fieles, W -- Stedman, H -- Burghes, A -- Ray, P -- Worton, R -- Fischbeck, K H -- GM32592/GM/NIGMS NIH HHS/ -- NS08075/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1988 Mar 18;239(4846):1418-20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Neurology Department, Hospital of the University of Pennsylvania, Philadelphia, 19104.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2450401" target="_blank"〉PubMed〈/a〉
    Keywords: Cells, Cultured ; DNA/genetics ; DNA, Recombinant ; *Gene Expression Regulation ; Humans ; Muscles/embryology/*metabolism ; Muscular Dystrophies/*genetics ; Myocardium/metabolism ; Nucleic Acid Hybridization ; RNA/metabolism ; RNA, Messenger/metabolism ; Regeneration ; Transcription, Genetic
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 72
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-10-21
    Description: Numerous human learning phenomena have been observed and captured by individual laws, but no unified theory of learning has succeeded in accounting for these observations. A theory and model are proposed that account for two of these phenomena: the power law of practice and the problem-solving fan-effect. The power law of practice states that the speed of performance of a task will improve as a power of the number of times that the task is performed. The power law resulting from two sorts of problem-solving changes, addition of operators to the problem-space graph and alterations in the decision procedure used to decide which operator to apply at a particular state, is empirically demonstrated. The model provides an analytic account for both of these sources of the power law. The model also predicts a problem-solving fan-effect, slowdown during practice caused by an increase in the difficulty of making useful decisions between possible paths, which is also found empirically.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shrager, J -- Hogg, T -- Huberman, B A -- New York, N.Y. -- Science. 1988 Oct 21;242(4877):414-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Xerox PARC, Palo Alto, CA 94304.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3175664" target="_blank"〉PubMed〈/a〉
    Keywords: Decision Making ; Humans ; Learning ; Mathematics ; *Models, Psychological ; *Problem Solving
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  • 73
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-12-16
    Description: The expression of a laboratory strain of HIV-1 (HTLV-IIIB) has been studied in mitogen-stimulated peripheral blood lymphocytes (PBLs) and in two lymphoid cell lines (CEM cells and C8166 cells). HIV-expressing cells contained from 300,000 to 2,500,000 copies of viral RNA per cell. Near-synchronous expression of an active infection could be achieved in C8166 cells. In these cells, the high copy numbers of viral RNA used as much as 40% of total protein synthesis for the production of viral gag protein, with high levels of viral RNA and protein synthesis preceding cell death by 2 to 4 days.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Somasundaran, M -- Robinson, H L -- AI 24474/AI/NIAID NIH HHS/ -- N01-HB-6-7022/HB/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1988 Dec 16;242(4885):1554-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, University of Massachusetts Medical Center, Worcester 01655.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3201245" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line ; *Cell Transformation, Viral ; HIV-1/*genetics/growth & development/metabolism ; Humans ; Kinetics ; Lymphocytes/*microbiology ; RNA, Viral/*biosynthesis ; Viral Proteins/*biosynthesis
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  • 74
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-11-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Spitzer, R L -- Williams, J B -- Pincus, H A -- New York, N.Y. -- Science. 1988 Nov 4;242(4879):651-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3187508" target="_blank"〉PubMed〈/a〉
    Keywords: Forensic Medicine/methods ; Humans ; Mental Disorders/classification/*diagnosis
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  • 75
    Publication Date: 1988-11-11
    Description: The glycoprotein hormones lutropin (LH) and follitropin (FSH), which have common alpha-subunits but hormone-specific beta-subunits, are both synthesized in the gonadotroph. However, they bear Asn-linked oligosaccharides that differ in structure. Those on LH terminate with the sequence SO4-4GalNAc beta 1----4GlcNAc beta 1----2Man alpha, whereas those on FSH terminate with the sequence sialic acid alpha-Gal beta 1----4GlcNAc beta 1----2Man alpha. A GalNAc-transferase was identified in bovine pituitary membranes that recognizes features of the alpha-subunit peptide and adds GalNAc to its oligosaccharides with an apparent Michaelis constant of 25 micromolar. The different patterns of glycosylation for LH and FSH indicate that access to the protein recognition marker on the alpha-subunit is modulated by the associated beta-subunit. The tightly regulated synthesis of sulfated and sialylated oligosaccharides on the pituitary glycoprotein hormones suggests these oligosaccharides have an important biological role.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Smith, P L -- Baenziger, J U -- HD-20197/HD/NICHD NIH HHS/ -- R37-CA21923/CA/NCI NIH HHS/ -- T32-ES07066/ES/NIEHS NIH HHS/ -- New York, N.Y. -- Science. 1988 Nov 11;242(4880):930-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Washington University School of Medicine, St. Louis, MO 63110.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2460923" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylgalactosamine/metabolism ; Animals ; Carbohydrate Sequence ; Cattle ; Cell Membrane/enzymology ; Follicle Stimulating Hormone/*biosynthesis/metabolism ; Follicle Stimulating Hormone, beta Subunit ; Galactosyltransferases/*metabolism ; Glycoprotein Hormones, alpha Subunit/metabolism ; Glycosylation ; Humans ; Luteinizing Hormone/*biosynthesis/metabolism ; Molecular Sequence Data ; *N-Acetylgalactosaminyltransferases ; Oligosaccharides/metabolism ; Pituitary Gland/*enzymology ; Placenta/enzymology ; Sulfates/metabolism
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  • 76
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-09-02
    Description: A 16-kilodalton protein expressed in cells producing the human immunodeficiency virus (HIV-1) was identified as the gene product of the vpu open reading frame. When expressed in vitro, the 81-amino acid vpu protein reacted with about one-third of the serum samples from AIDS patients that were tested, indicating that the vpu open reading frame is expressed in vivo as well. Introduction of a frame-shift mutation into the vpu open reading frame did not significantly interfere with expression of the major viral proteins in a transient expression system. However, a five- to tenfold reduction in progeny virions was observed after the infection of T lymphocytes with the mutant virus. These data suggest that the vpu gene product is required for efficient virus replication and may have a role in assembly or maturation of progeny virions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Strebel, K -- Klimkait, T -- Martin, M A -- New York, N.Y. -- Science. 1988 Sep 2;241(4870):1221-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Microbiology, National Institute of Allergy and Infectious Diseases, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3261888" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/immunology ; Base Sequence ; DNA, Viral/genetics ; Electrophoresis, Polyacrylamide Gel ; *Genes, Viral ; HIV/*genetics/physiology ; Humans ; Immune Sera/immunology ; Immunoassay ; Mutation ; Protein Biosynthesis ; RNA, Viral/genetics ; T-Lymphocytes/microbiology ; Transcription, Genetic ; Viral Proteins/*genetics/immunology/physiology ; Virus Replication
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  • 77
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-04-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wright, F H -- New York, N.Y. -- Science. 1988 Apr 29;240(4852):587-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3363341" target="_blank"〉PubMed〈/a〉
    Keywords: *Brain Death ; *Ethics, Medical ; Humans ; *Tissue Donors
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  • 78
    Publication Date: 1988-08-12
    Description: Interleukin-6 (IL-6/BSF-2/IFN beta 2) is a multifunctional cytokine that regulates the growth and differentiation of various tissues, and is known particularly for its role in the immune response and acute phase reactions. A complementary DNA encoding the human IL-6 receptor (IL-6-R) has now been isolated. The IL-6-R consists of 468 amino acids, including a signal peptide of approximately 19 amino acids and a domain of approximately 90 amino acids that is similar to a domain in the immunoglobulin (Ig) superfamily. The cytoplasmic domain of approximately 82 amino acids lacks a tyrosine/kinase domain, unlike other growth factor receptors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yamasaki, K -- Taga, T -- Hirata, Y -- Yawata, H -- Kawanishi, Y -- Seed, B -- Taniguchi, T -- Hirano, T -- Kishimoto, T -- New York, N.Y. -- Science. 1988 Aug 12;241(4867):825-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Immunology, Osaka University, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3136546" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Cell Line ; *Cloning, Molecular ; DNA/genetics/isolation & purification ; *Genes ; Humans ; Immunoglobulin kappa-Chains/genetics ; Molecular Sequence Data ; Receptors, Immunologic/genetics ; Receptors, Interleukin-6 ; Sequence Homology, Nucleic Acid ; *Transcription, Genetic
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  • 79
    Publication Date: 1988-05-06
    Description: A point mutation in the human insulin receptor gene in a patient with type A insulin resistance alters the amino acid sequence within the tetrabasic processing site of the proreceptor molecule from Arg-Lys-Arg-Arg to Arg-Lys-Arg-Ser. Epstein-Barr virus-transformed lymphocytes from this patient synthesize an insulin receptor precursor that is normally glycosylated and inserted into the plasma membrane but is not cleaved to mature alpha and beta subunits. Insulin binding to these cells is severely reduced but can be increased about fivefold by gentle treatment with trypsin, accompanied by the appearance of normal alpha subunits. These results indicate that proteolysis of the proreceptor is necessary for its normal full insulin-binding sensitivity and signal-transducing activity and that a cellular protease that is more stringent in its specificity than trypsin is required to process the receptor precursor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yoshimasa, Y -- Seino, S -- Whittaker, J -- Kakehi, T -- Kosaki, A -- Kuzuya, H -- Imura, H -- Bell, G I -- Steiner, D F -- AM 13914/AM/NIADDK NIH HHS/ -- AM 20595/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1988 May 6;240(4853):784-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biology, University of Chicago, IL 60637.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3283938" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Amino Acid Sequence ; Cell Membrane/metabolism ; Cells, Cultured ; DNA/genetics ; Diabetes Mellitus/*genetics/metabolism ; Female ; Glycosylation ; Humans ; Insulin/metabolism ; Insulin Resistance/*genetics ; Lymphocytes/metabolism ; Molecular Sequence Data ; Mutation ; Nucleic Acid Hybridization ; Protein Precursors/*genetics/metabolism ; RNA, Messenger/metabolism ; Receptor, Insulin/*genetics/metabolism ; Trypsin/metabolism
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  • 80
    Publication Date: 1988-08-19
    Description: N-Methyl-D-aspartate (NMDA), phencyclidine (PCP), and quisqualate receptor binding were compared to benzodiazepine, gamma-aminobutyric acid (GABA), and muscarinic cholinergic receptor binding in the putamen and cerebral cortex of individuals with Huntington's disease (HD). NMDA receptor binding was reduced by 93 percent in putamen from HD brains compared to binding in normal brains. Quisqualate and PCP receptor binding were reduced by 67 percent, and the binding to other receptors was reduced by 55 percent or less. Binding to these receptors in the cerebral cortex was unchanged in HD brains. The results support the hypothesis that NMDA receptor-mediated neurotoxicity plays a role in the pathophysiology of Huntington's disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Young, A B -- Greenamyre, J T -- Hollingsworth, Z -- Albin, R -- D'Amato, C -- Shoulson, I -- Penney, J B -- NS15655/NS/NINDS NIH HHS/ -- NS17978/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1988 Aug 19;241(4868):981-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, University of Michigan, Ann Arbor 48109.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2841762" target="_blank"〉PubMed〈/a〉
    Keywords: Cerebral Cortex/analysis/metabolism ; Humans ; Huntington Disease/*metabolism ; Putamen/analysis/*metabolism ; Receptors, AMPA ; Receptors, Drug/analysis/metabolism ; Receptors, GABA-A/analysis/metabolism ; Receptors, Muscarinic/analysis/metabolism ; Receptors, N-Methyl-D-Aspartate ; Receptors, Neurotransmitter/*analysis/metabolism ; Receptors, Phencyclidine
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  • 81
    Publication Date: 1988-12-16
    Description: Protein extracts derived from bone can initiate the process that begins with cartilage formation and ends in de novo bone formation. The critical components of this extract, termed bone morphogenetic protein (BMP), that direct cartilage and bone formation as well as the constitutive elements supplied by the animal during this process have long remained unclear. Amino acid sequence has been derived from a highly purified preparation of BMP from bovine bone. Now, human complementary DNA clones corresponding to three polypeptides present in this BMP preparation have been isolated, and expression of the recombinant human proteins have been obtained. Each of the three (BMP-1, BMP-2A, and BMP-3) appears to be independently capable of inducing the formation of cartilage in vivo. Two of the encoded proteins (BMP-2A and BMP-3) are new members of the TGF-beta supergene family, while the third, BMP-1, appears to be a novel regulatory molecule.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wozney, J M -- Rosen, V -- Celeste, A J -- Mitsock, L M -- Whitters, M J -- Kriz, R W -- Hewick, R M -- Wang, E A -- New York, N.Y. -- Science. 1988 Dec 16;242(4885):1528-34.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Tissue Growth and Repair Program, Genetics Institute, Inc., Cambridge, MA 02140.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3201241" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Bone Morphogenetic Proteins ; Cartilage/cytology/drug effects ; Cell Line ; DNA/genetics ; Growth Substances/*genetics ; Humans ; Molecular Sequence Data ; *Osteogenesis ; Proteins/*genetics/pharmacology ; Recombinant Proteins/pharmacology ; Sequence Homology, Nucleic Acid ; Transforming Growth Factors/genetics
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  • 82
    Publication Date: 1988-07-29
    Description: Familial hypobetalipoproteinemia is a syndrome in which the plasma levels of apolipoprotein B (apo-B) and cholesterol are abnormally low. A truncated species of apo-B was identified in the plasma lipoproteins of members of a kindred with familial hypobetalipoproteinemia. DNA sequencing studies on genomic clones and enzymatically amplified genomic DNA samples revealed a four-base pair deletion in the apo-B gene. This short deletion, which results in a frameshift and a premature stop codon, accounts for the truncated apo-B species and explains the low apo-B and low cholesterol levels in this family.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Young, S G -- Northey, S T -- McCarthy, B J -- HL-01672-03/HL/NHLBI NIH HHS/ -- HL-14197/HL/NHLBI NIH HHS/ -- HL-38781-01/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1988 Jul 29;241(4865):591-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Gladstone Foundation Laboratories for Cardiovascular Disease, University of California, San Francisco 94140-0608.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3399894" target="_blank"〉PubMed〈/a〉
    Keywords: Apolipoproteins B/*genetics ; Cholesterol/*blood ; Chromosome Deletion ; Cloning, Molecular ; Heterozygote ; Humans ; Hypobetalipoproteinemias/*genetics ; Hypolipoproteinemias/*genetics ; Mutation ; Pedigree
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  • 83
    Publication Date: 1988-10-14
    Description: The signal sequence of simian virus 40 (SV40) large T-antigen for translocation into the nucleus is composed of positively charged amino acids Lys-Lys-Lys-Arg-Lys. Rabbit antibodies to a synthetic peptide containing the negatively charged amino acid sequence Asp-Asp-Asp-Glu-Asp were obtained. Indirect immunofluorescence of the antigens recognized by the antibody was punctate at the nuclear rim or the nuclear surface, depending on the plane of focus. The antibody blocked transport of nuclear proteins into the nucleus. The antigens recognized by the antibody were predominantly localized to the nuclear pores.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yoneda, Y -- Imamoto-Sonobe, N -- Matsuoka, Y -- Iwamoto, R -- Kiho, Y -- Uchida, T -- New York, N.Y. -- Science. 1988 Oct 14;242(4876):275-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Molecular and Cellular Biology, Osaka University, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3051382" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antigens/immunology ; Antigens, Polyomavirus Transforming ; Biological Transport ; Cell Line ; Cell Nucleus/*metabolism ; Fluorescent Antibody Technique ; Humans ; Molecular Sequence Data ; Nuclear Proteins/*metabolism ; Nucleoplasmins ; Oligopeptides/immunology/*physiology ; *Phosphoproteins ; Protein Sorting Signals/*physiology ; Rats
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  • 84
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-02-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zeeberg, B R -- Gibson, R E -- Reba, R C -- MH42821-01/MH/NIMH NIH HHS/ -- NS-15080/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1988 Feb 12;239(4841 Pt 1):789-91.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2963379" target="_blank"〉PubMed〈/a〉
    Keywords: Brain/*metabolism ; Haloperidol/therapeutic use ; Humans ; Kinetics ; Receptors, Dopamine/drug effects/*metabolism ; Receptors, Dopamine D2 ; Schizophrenia/*metabolism
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  • 85
    Publication Date: 1988-05-20
    Description: The human immunodeficiency virus type 1 (HIV-1) and human T-cell leukemia virus type I (HTLV-I) are two distinct human retroviruses that infect T cells. Recent epidemiologic studies have identified a cohort of individuals that are coinfected with both viruses. It is reported here that human peripheral blood leukocytes infected with HIV-1 in vitro can be induced to produce large quantities of HIV-1 after mitogenic stimulation by noninfectious HTLV-I virions. It is also shown that HTLV-I virions may exert this effect prior to, immediately following, or well after the cells are infected with HIV-1. These results provide further impetus for epidemiologic studies of dually infected individuals to determine whether HTLV-I may act as a cofactor for acquired immunodeficiency syndrome (AIDS).〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zack, J A -- Cann, A J -- Lugo, J P -- Chen, I S -- CA 32737/CA/NCI NIH HHS/ -- CA 38597/CA/NCI NIH HHS/ -- CA 43370/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1988 May 20;240(4855):1026-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Hematology-Oncology, UCLA School of Medicine 90024.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2835813" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/microbiology ; Deltaretrovirus/*immunology ; HIV/*growth & development/isolation & purification ; Humans ; *Lymphocyte Activation ; T-Lymphocytes/immunology/*microbiology ; Virus Activation
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  • 86
    Publication Date: 1988-04-08
    Description: The protein kinase inhibitor 2-aminopurine (2AP) blocks the induction of the human beta-interferon gene by virus or poly(I)-poly(C) at the level of transcription. This inhibition is specific, since 2AP does not inhibit induction of either the hsp70 heat-shock gene by high temperature or the metallothionein gene by cadmium or dexamethasone. However, 2AP does block the induction of the c-fos and c-myc proto-oncogenes by serum growth factors or virus, suggesting that a protein kinase may be involved in the regulation of these genes, as well as of the beta-interferon gene. However, different factors must be required for the induction of these three genes, since they are not coordinately regulated by the same inducers in most of the cell lines examined.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zinn, K -- Keller, A -- Whittemore, L A -- Maniatis, T -- AI20642/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1988 Apr 8;240(4849):210-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biology, Harvard University, Cambridge, MA 02138.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3281258" target="_blank"〉PubMed〈/a〉
    Keywords: 2-Aminopurine/*pharmacology ; Adenine/*analogs & derivatives ; Animals ; Cells, Cultured ; Gene Expression Regulation/*drug effects ; Heat-Shock Proteins/genetics ; Humans ; Interferon Type I/*genetics ; Mice ; Protein Kinase Inhibitors ; Proto-Oncogene Proteins/*genetics ; *Proto-Oncogenes ; Regulatory Sequences, Nucleic Acid ; Transcription, Genetic/drug effects
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 87
    Publication Date: 1988-06-24
    Description: A 20-base pair region in the first intron of the human c-myc gene was identified as the binding site of a nuclear protein. This binding site is mutated in five out of seven Burkitt lymphomas sequenced to date. To investigate the protein-recognition region in greater detail, the abnormal c-myc allele from a Burkitt lymphoma line (PA682) that carries a t(8;22) chromosomal translocation was used. A point mutation in the binding region of the PA682 c-myc DNA abolished binding of this nuclear protein. This protein may be an important factor for control of c-myc expression, and mutations in its recognition sequence may be associated with c-myc activation in many cases of Burkitt lymphoma.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zajac-Kaye, M -- Gelmann, E P -- Levens, D -- New York, N.Y. -- Science. 1988 Jun 24;240(4860):1776-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medicine Branch, National Cancer Institute, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2454510" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Burkitt Lymphoma/*genetics ; DNA-Binding Proteins/*metabolism ; Gene Expression Regulation ; Humans ; Molecular Sequence Data ; Mutation ; Nuclear Proteins/*metabolism ; *Oncogenes ; Proto-Oncogene Proteins/*genetics ; RNA/genetics ; RNA, Antisense ; Transcription, Genetic
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 88
    Publication Date: 1988-04-22
    Description: These studies were set up to determine whether those oncogenes participating in the initiation of mammary carcinogenesis (for example, ras oncogenes) play a direct role in the outcome of events associated with the late stages of tumor development such as loss of hormone dependency. Mammary carcinomas induced by a single carcinogenic insult in pubescent rats was selected as an in vivo model system with direct relevance to human breast cancer. Acquisition of hormone-independent growth in these carcinogen-induced tumors was found to be independent of the activation of ras oncogenes during the early stages of carcinogenesis. In agreement with these observations, introduction of a human ras oncogene into human MCF-7 breast carcinoma cells did not abrogate their hormonal dependency for growth in vivo. These findings suggest that those events responsible for the critical stages of breast cancer development occur independently and in an uncoordinated manner.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sukumar, S -- Carney, W P -- Barbacid, M -- N01-CO-74101/CO/NCI NIH HHS/ -- New York, N.Y. -- Science. 1988 Apr 22;240(4851):524-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Developmental Oncology Section, Basic Research Program, Frederick Cancer Research Facility, MD 21701.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3282307" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Breast Neoplasms/*physiopathology ; Cell Line ; Estrogens/*physiology ; Gene Expression Regulation ; *Genes, ras ; Humans ; Mammary Neoplasms, Experimental/*physiopathology ; Methylnitrosourea ; Mice ; Mice, Nude ; Neoplasm Transplantation ; Rats ; Receptors, Estrogen/*physiology
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  • 89
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-10-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1988 Oct 14;242(4876):183-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3175643" target="_blank"〉PubMed〈/a〉
    Keywords: *Anabolic Agents/adverse effects ; *Doping in Sports/legislation & jurisprudence ; Female ; Humans ; Male ; Risk Factors ; Stanozolol ; Substance-Related Disorders/*economics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 90
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-07-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1988 Jul 8;241(4862):150-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3388025" target="_blank"〉PubMed〈/a〉
    Keywords: Government Agencies ; Humans ; Jurisprudence ; Substance-Related Disorders/*diagnosis ; United States ; Urine/analysis
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 91
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-07-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1988 Jul 29;241(4865):522.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3399885" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Humans ; Malaria/*prevention & control ; Plasmodium/immunology ; Vaccines
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  • 92
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-09-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1988 Sep 2;241(4870):1157-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3413479" target="_blank"〉PubMed〈/a〉
    Keywords: Cannabis ; Cocaine ; Drug and Narcotic Control/*legislation & jurisprudence ; Humans ; *Legislation, Drug/trends ; Substance-Related Disorders/prevention & control/therapy ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 93
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-06-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1988 Jun 17;240(4859):1605-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3381085" target="_blank"〉PubMed〈/a〉
    Keywords: Budgets/economics ; Cannabis ; Cocaine ; Humans ; *Legislation, Drug ; Research Support as Topic/economics/legislation & jurisprudence ; Substance-Related Disorders/economics/*prevention & control/therapy ; United States
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  • 94
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-07-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1988 Jul 29;241(4865):521-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3399884" target="_blank"〉PubMed〈/a〉
    Keywords: Accounting ; Humans ; International Agencies/economics/*organization & administration ; International Cooperation ; *Malaria ; Research Support as Topic/economics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 95
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-04-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1988 Apr 22;240(4851):384.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3358122" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*epidemiology ; Humans ; Ussr
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  • 96
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-12-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1988 Dec 23;242(4886):1638.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3059496" target="_blank"〉PubMed〈/a〉
    Keywords: *Acquired Immunodeficiency Syndrome/genetics/immunology/microbiology ; Animals ; Bone Marrow Transplantation ; *Disease Models, Animal ; HIV/genetics ; Humans ; Mice ; Mice, Transgenic ; National Institutes of Health (U.S.) ; United States
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  • 97
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-12-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1988 Dec 16;242(4885):1505-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3144041" target="_blank"〉PubMed〈/a〉
    Keywords: Clinical Trials as Topic ; Humans ; Myocardial Infarction/*drug therapy ; National Institutes of Health (U.S.) ; Patients ; Streptokinase/therapeutic use ; Tissue Plasminogen Activator/*therapeutic use ; United States
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  • 98
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-11-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1988 Nov 18;242(4881):1008-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2904173" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/physiology ; DNA-Binding Proteins/*genetics ; *Gene Expression Regulation ; *Genes, Homeobox ; Humans ; Pituitary Gland/physiology ; Transcription Factors/*genetics
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  • 99
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-10-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1988 Oct 7;242(4875):32-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3175634" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Genetically Modified ; *Genes ; *Genetic Engineering ; Humans ; Mice ; Mice, Mutant Strains ; Swine
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 100
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-09-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1988 Sep 9;241(4871):1286.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3413494" target="_blank"〉PubMed〈/a〉
    Keywords: Dose-Response Relationship, Radiation ; Humans ; Radioactive Fallout/*adverse effects
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