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  • Female  (934)
  • American Association for the Advancement of Science (AAAS)  (934)
  • 1985-1989  (357)
  • 1980-1984  (577)
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  • American Association for the Advancement of Science (AAAS)  (934)
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  • 1
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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
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 1988-04-29
    Description: Spontaneous diabetes mellitus was blocked in nonobese diabetic mice by treatment with a monoclonal antibody against the L3T4 determinant present on the surface of T-helper lymphocytes. Sustained treatment with the monoclonal antibody led to cessation of the lymphocytic infiltration associated with the destruction of the insulin-producing beta cells. Moreover, the mice remained normoglycemic after the antibody therapy was stopped. These studies indicate that immunotherapy with monoclonal antibodies to the lymphocyte subset may not only halt the progression of diabetes, but may lead to long-term reversal of the disease after therapy has ended.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shizuru, J A -- Taylor-Edwards, C -- Banks, B A -- Gregory, A K -- Fathman, C G -- AI11313/AI/NIAID NIH HHS/ -- DK39959/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1988 Apr 29;240(4852):659-62.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Stanford University Medical Center, CA 94305-5111.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2966437" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Monoclonal/*therapeutic use ; Antigens, Differentiation, T-Lymphocyte/*immunology ; Cyclosporins/therapeutic use ; Diabetes Mellitus, Experimental/pathology/*therapy ; Female ; *Immunotherapy ; Islets of Langerhans/pathology ; Lymphocytes/pathology ; Mice ; Mice, Inbred ICR ; T-Lymphocytes, Helper-Inducer/*immunology/pathology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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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
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    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
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
    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
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
    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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    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
    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
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
    Publication Date: 1988-01-29
    Description: Regulation of the synthesis of membrane-bound and secreted immunoglobulin mu heavy chains at the level of RNA processing is an important element for B cell development. The precursor mu RNA is either polyadenylated at the upstream poly(A) site (for the secreted form) or spliced (for the membrane-bound form) in a mutually exclusive manner. When the mouse mu gene linked to the SV40/HSV-TK hybrid promoter was microinjected into Xenopus oocytes, the mu messenger RNA (mRNA) was altered by coinjection of nuclei of mouse surface IgM-bearing B-lymphoma cells to include the synthesis of the membrane-bound form. An increase in the membrane-bound form was not observed when nuclei of IgM-secreting hybridoma cells or fibroblast cells were coinjected. Deletion of the upstream poly(A) site did not eliminate the effect of B-lymphoma nuclei suggesting that membrane-specific splicing is stimulated. Further, splicing of other mu gene introns was not affected by coinjection of B-lymphoma nuclei. These results suggest that mature B cells contain one or more transacting nuclear factors that stimulate splicing specific for membrane-bound mu mRNA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tsurushita, N -- Ho, L -- Korn, L J -- AI21298/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1988 Jan 29;239(4839):494-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Stanford University School of Medicine, CA 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3124268" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/immunology/ultrastructure ; Cell Membrane/metabolism ; Cell Nucleus/*physiology ; DNA, Recombinant ; Female ; Hybridomas/ultrastructure ; Immunoglobulin M/genetics ; Immunoglobulin mu-Chains/*genetics ; Introns ; Lymphoma/*immunology/ultrastructure ; Mice ; Microinjections ; Nuclear Transfer Techniques ; Oocytes/*metabolism ; Plasmids ; Promoter Regions, Genetic ; *RNA Splicing ; RNA, Messenger/*genetics ; Tumor Cells, Cultured ; Xenopus
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
    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
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
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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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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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