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  • Female  (147)
  • American Association for the Advancement of Science (AAAS)  (147)
  • American Geophysical Union (AGU)
  • 2015-2019
  • 1985-1989  (147)
  • 1945-1949
  • 2019
  • 1988  (72)
  • 1986  (75)
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  • American Association for the Advancement of Science (AAAS)  (147)
  • American Geophysical Union (AGU)
  • Springer  (1)
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  • 2015-2019
  • 1985-1989  (147)
  • 1945-1949
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  • 1
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    AIDS: an international perspective (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    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
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    Immunotherapy of the nonobese diabetic mouse: treatment with an antibody to T-helper lymphocytes (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    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
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  • 3
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    Longevity and gender (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    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
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Breast cancer study vetoed (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    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
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    Breast cancer-associated pS2 protein: synthesis and secretion by normal stomach mucosa (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    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
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  • 6
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    Structural rearrangement of the retinoblastoma gene in human breast carcinoma (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    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
    Print ISSN: 0036-8075
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  • 7
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    Congenital poisoning by polychlorinated biphenyls and their contaminants in Taiwan (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    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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  • 8
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    Nuclear factors in B lymphoma enhance splicing of mouse membrane-bound mu mRNA in Xenopus oocytes (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    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
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  • 9
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    Molecular cloning of two types of GAP complementary DNA from human placenta (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    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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  • 10
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    Tandem array of human visual pigment genes at Xq28 (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    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
    Print ISSN: 0036-8075
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  • 11
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    Functional expression of a new pharmacological subtype of brain nicotinic acetylcholine receptor (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-04-15
    Description: A new type of agonist-binding subunit of rat neuronal nicotinic acetylcholine receptors (nAChRs) was identified. Rat genomic DNA and complementary DNA encoding this subunit (alpha 2) were cloned and analyzed. Complementary DNA expression studies in Xenopus oocytes revealed that the injection of messenger RNAs (mRNAs) for alpha 2 and beta 2 (a neuronal nAChR subunit) led to the generation of a functional nAChR. In contrast to the other known neuronal nAChRs, the receptor produced by the injection of alpha 2 and beta 2 mRNAs was resistant to the alpha-neurotoxin Bgt3.1. In situ hybridization histochemistry showed that alpha 2 mRNA was expressed in a small number of regions, in contrast to the wide distribution of the other known agonist-binding subunits (alpha 3 and alpha 4) mRNAs. These results demonstrate that the alpha 2 subunit differs from other known agonist-binding alpha-subunits of nAChRs in its distribution in the brain and in its pharmacology.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wada, K -- Ballivet, M -- Boulter, J -- Connolly, J -- Wada, E -- Deneris, E S -- Swanson, L W -- Heinemann, S -- Patrick, J -- New York, N.Y. -- Science. 1988 Apr 15;240(4850):330-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Salk Institute for Biological Studies, San Diego, CA 92138.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2832952" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Brain/*metabolism ; DNA Restriction Enzymes ; Female ; *Genes ; Molecular Sequence Data ; Neurons/metabolism ; Nucleotide Mapping ; Oocytes/metabolism ; Rats ; Receptors, Nicotinic/*genetics/metabolism ; Transcription, Genetic ; Xenopus laevis
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  • 12
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    Aggregation of lysine-containing zeins into protein bodies in Xenopus oocytes (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-04-29
    Description: Zeins, the storage proteins of maize, are totally lacking in the essential amino acids lysine and tryptophan. Lysine codons and lysine- and tryptophan-encoding oligonucleotides were introduced at several positions into a 19-kilodalton zein complementary DNA by oligonucleotide-mediated mutagenesis. A 450-base pair open reading frame from a simian virus 40 (SV40) coat protein was also engineered into the zein coding region. Messenger RNAs for the modified zeins were synthesized in vitro with an SP6 RNA polymerase system and injected into Xenopus laevis oocytes. The modifications did not affect the translation, signal peptide cleavage, or stability of the zeins. The ability of the modified zeins to assemble into structures similar to maize protein bodies was assayed by two criteria: assembly into membrane-bound vesicles resistant to exogenously added protease, and ability to self-aggregate into dense structures. All of the modified zeins were membrane-bound; only the one containing a 17-kilodalton SV40 protein fragment was unable to aggregate. These findings suggest that it may be possible to create high-lysine corn by genetic engineering.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wallace, J C -- Galili, G -- Kawata, E E -- Cuellar, R E -- Shotwell, M A -- Larkins, B A -- New York, N.Y. -- Science. 1988 Apr 29;240(4852):662-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Botany and Plant Pathology, Purdue University, West Lafayette, IN 47907.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2834822" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cell Membrane/metabolism ; DNA/genetics ; DNA, Recombinant ; Female ; Genetic Engineering ; *Lysine/genetics ; Macromolecular Substances ; Molecular Sequence Data ; Mutation ; Oocytes/*metabolism ; Peptide Hydrolases/metabolism ; RNA, Messenger/genetics ; Simian virus 40/genetics ; Xenopus laevis ; Zea mays ; Zein/genetics/*metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 13
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    Mitochondrial DNA mutation associated with Leber's hereditary optic neuropathy (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    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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  • 14
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    Seroprevalence and epidemiological correlates of HTLV-I infection in U.S. blood donors (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    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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    Familial imprinting determines H-2 selective mating preferences (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-06-03
    Description: Inbred male mice typically prefer to mate with females of a different, non-self H-2 haplotype. To determine whether this natural preference is irrevocable or results from familial imprinting, a test system was used which relied on previous observations that B6 males (H-2b) mate preferentially with congenic B6-H-2k rather than B6 females, and B6-H-2k males with B6 females. This preference was reversed in B6 males fostered by B6-H-2k parents and in B6-H-2k males fostered by B6 parents, preference in these cases favoring the same H-2 type. Thus, H-2 selective mating preference is acquired by imprinting on familial H-2 types.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yamazaki, K -- Beauchamp, G K -- Kupniewski, D -- Bard, J -- Thomas, L -- Boyse, E A -- CA-39827/CA/NCI NIH HHS/ -- GMCA-32096/GM/NIGMS NIH HHS/ -- NS-22623/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1988 Jun 3;240(4857):1331-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Monell Chemical Senses Center, Philadelphia, PA 19104.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3375818" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Female ; H-2 Antigens/*genetics ; *Imprinting (Psychology) ; Male ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Mice, Inbred Strains ; Odors ; *Sexual Behavior, Animal ; Smell/physiology
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  • 16
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    Insulin-resistant diabetes due to a point mutation that prevents insulin proreceptor processing (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    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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  • 17
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    The drug of champions (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    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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  • 18
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    A parent's sex may affect gene expression (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-01-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1988 Jan 22;239(4838):352-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3336789" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; DNA/metabolism ; Female ; *Gene Expression Regulation ; Genes ; Humans ; Male ; Methylation ; Mice ; Mice, Transgenic ; *Sex Characteristics ; Tissue Distribution
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  • 19
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    Sexual responses are--almost--all in the brain (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-08-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1988 Aug 19;241(4868):903-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3043664" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/*metabolism ; Female ; Humans ; Male ; Menopause/*physiology ; Mice ; Pituitary Hormone-Releasing Hormones/*biosynthesis ; Puberty/*physiology ; Rats ; Sexual Maturation
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  • 20
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    Prevention of type I diabetes in nonobese diabetic mice by virus infection (1988)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1988-01-29
    Description: The nonobese diabetic (NOD) mouse is an animal model of type I diabetes and develops a characteristic autoimmune lesion in the islets of Langerhans with lymphocytic infiltration and destruction of pancreatic beta cells. The result is hypoinsulinemia, hyperglycemia, ketoacidosis, and death. Diabetes usually begins by the sixth month of age but can occur earlier when young NOD mice are infused with lymphocytes from older NOD donors. When newborn or adult NOD mice were infected with a lymphotropic virus they did not become diabetic. The interaction between viruses and lymphocytes is pivotal in aborting diabetes, as established by experiments in which lymphocytes from virus-infected donors failed to transfer diabetes. In contrast, lymphocytes from age- and sex-matched uninfected donors caused disease. Therefore, viruses and, presumably, their products can be developed to be beneficial and may have potential as a component for treatment of human diseases. Further, these results point to the utility of viruses as probes for dissecting the pathogenesis of a nonviral disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Oldstone, M B -- AG-04342/AG/NIA NIH HHS/ -- AI-09484/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1988 Jan 29;239(4839):500-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology, Research Institute of Scripps Clinic, La Jolla, CA 92037.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3277269" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autoimmune Diseases/pathology ; Bone Marrow/pathology ; Diabetes Mellitus, Experimental/immunology/pathology/*prevention & control ; Diabetes Mellitus, Type 1/immunology/pathology/*prevention & control ; Female ; Islets of Langerhans/pathology ; Lymphocyte Transfusion ; Lymphocytes/immunology ; Lymphocytic Choriomeningitis/*immunology/pathology ; Mice ; Spleen/pathology ; T-Lymphocytes/immunology
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    Anti-acne drug poses dilemma for FDA (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-05-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sun, M -- New York, N.Y. -- Science. 1988 May 6;240(4853):714-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2966438" target="_blank"〉PubMed〈/a〉
    Keywords: *Abnormalities, Drug-Induced ; Acne Vulgaris/*drug therapy ; Female ; Humans ; Isotretinoin ; *Legislation, Drug ; Pregnancy ; Tretinoin/*adverse effects/therapeutic use ; United States ; United States Food and Drug Administration
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  • 22
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    Debate rages over breast cancer study (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-01-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sun, M -- New York, N.Y. -- Science. 1988 Jan 1;239(4835):17-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3336770" target="_blank"〉PubMed〈/a〉
    Keywords: Breast Neoplasms/*etiology ; Dietary Fats/adverse effects ; Female ; Humans ; Research Support as Topic
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  • 23
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    Diet and health in China (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-04-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roberts, L -- New York, N.Y. -- Science. 1988 Apr 1;240(4848):27.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3353707" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; China ; *Diet ; Diet Surveys ; Female ; *Health ; Humans ; Male ; Middle Aged ; Neoplasms/epidemiology
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  • 24
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    Expression of a calcium-mobilizing parathyroid hormone-like peptide in lactating mammary tissue (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-10-14
    Description: A survey of rat tissues by RNA analysis, aimed at uncovering the physiological function of the parathyroid hormone-like peptide (PTH-LP) associated with hypercalcemia of malignancy, revealed the presence of a 1.5-kilobase messenger RNA encoding this peptide in lactating mammary glands. PTH-LP messenger RNA is expressed in mammary tissue only during lactation; it appears and disappears rapidly (2 to 4 hours) as a function of the sucking stimulus. The identity of this messenger RNA was confirmed by cloning the rat PTH-LP complementary DNA, which predicts a peptide with strong similarity to the human homolog. Moreover, extracts from lactating mammary tissue stimulated parathyroid hormone-dependent adenylate cyclase. These findings suggest that PTH-LP plays a physiological role in lactation, possibly as a hormone for the mobilization or transfer (or both) of calcium to the milk.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thiede, M A -- Rodan, G A -- New York, N.Y. -- Science. 1988 Oct 14;242(4876):278-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Bone Biology and Osteoporosis Research, Merck Sharp & Dohme Research Laboratories, West Point, PA 19486.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3175653" target="_blank"〉PubMed〈/a〉
    Keywords: Adenylyl Cyclases/metabolism ; Amino Acid Sequence ; Animals ; Base Sequence ; Calcium/*metabolism ; Cloning, Molecular ; DNA/genetics ; Female ; *Gene Expression Regulation ; Humans ; Lactation/*metabolism ; Mammary Glands, Animal/*metabolism ; Molecular Sequence Data ; Neoplasm Proteins/*genetics/physiology ; Parathyroid Hormone-Related Protein ; Pregnancy ; RNA, Messenger/genetics/*metabolism ; Rats ; Sequence Homology, Nucleic Acid ; Tissue Distribution
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    Oral Salmonella typhimurium vaccine expressing circumsporozoite protein protects against malaria (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-04-15
    Description: Immunization with radiation-attenuated malaria sporozoites induces potent cellular immune responses, but the target antigens are unknown and have not previously been elicited by subunit vaccines prepared from the circumsporozoite (CS) protein. A method is described here for inducing protective cell-mediated immunity to sporozoites by immunization with attenuated Salmonella typhimurium transformed with the Plasmodium berghei CS gene. These transformants constitutively express CS antigens and, when used to immunize mice orally, colonize the liver, induce antigen-specific cell-mediated immunity, and protect mice against sporozoite challenge in the absence of antisporozoite antibodies. These data indicate that the CS protein contains T cell epitopes capable of inducing protective cell-mediated immunity, and emphasize the importance of proper antigen presentation in generating this response. Analogous, orally administered vaccines against human malaria might be feasible.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sadoff, J C -- Ballou, W R -- Baron, L S -- Majarian, W R -- Brey, R N -- Hockmeyer, W T -- Young, J F -- Cryz, S J -- Ou, J -- Lowell, G H -- New York, N.Y. -- Science. 1988 Apr 15;240(4850):336-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Bacterial Diseases, Walter Reed Army Institute of Research, Washington, DC 20307-5100.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3281260" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, Surface/*immunology ; Bacterial Vaccines/*immunology ; Female ; Liver/microbiology ; Malaria/*immunology/prevention & control ; Mice ; Mice, Inbred BALB C ; Plasmids ; Plasmodium berghei/*immunology ; *Protozoan Proteins ; Salmonella typhimurium/genetics/*immunology
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  • 26
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    Prenatal tetrodotoxin infusion blocks segregation of retinogeniculate afferents (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-10-07
    Description: In the adult mammalian visual system, ganglion cell axons from the two eyes are segregated from each other into separate layers within their principal target, the lateral geniculate nucleus. The involvement of spontaneously generated action potential activity in the process of segregation was investigated during the fetal period in which segregation normally occurs in the cat, between embryonic day 45 (E45) and birth (E65). Tetrodotoxin, which blocks the voltage-sensitive sodium channel, was used to prevent action potentials. Fetuses received continuous intracranial infusions of tetrodotoxin from osmotic minipumps implanted in utero on E42. After a 2-week infusion, intraocular injections of anterograde tracers revealed that tetrodotoxin prevented segregation. The contralateral projection filled the lateral geniculate nucleus uniformly, and the ipsilateral projection expanded to occupy most of what would normally be contralaterally innervated layer A. Thus, in the fetus, long before the onset of vision, spontaneous action potential activity is likely to be present in the visual system and to contribute to the segregation of the retinogeniculate pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shatz, C J -- Stryker, M P -- EY 02874/EY/NEI NIH HHS/ -- New York, N.Y. -- Science. 1988 Oct 7;242(4875):87-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, Stanford University School of Medicine, CA 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3175636" target="_blank"〉PubMed〈/a〉
    Keywords: Afferent Pathways/drug effects/*embryology ; Animals ; Cats ; Female ; Fetus ; Infusions, Parenteral ; Optic Chiasm/drug effects/*embryology ; Pregnancy ; Reference Values ; Tetrodotoxin/administration & dosage/*pharmacology ; Visual Pathways/drug effects/*embryology
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  • 27
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    Ovothiol replaces glutathione peroxidase as a hydrogen peroxide scavenger in sea urchin eggs (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-11-11
    Description: Despite its potential toxicity, H2O2 is used as an extracellular oxidant by Stronglylocentrotus purpuratus eggs to cross-link their fertilization envelopes. These eggs contain 5 mM 1-methyl-N alpha,N alpha-dimethyl-4-mercaptohistidine (ovothiol C), which reacts with H2O2. In consuming H2O2 and being reduced by glutathione, ovothiol acts as a glutathione peroxidase and replaces the function of the enzyme in eggs. The ovothiol system is more effective than egg catalase in destroying H2O2 at concentrations produced during fertilization and constitutes a principal mechanism for preventing oxidative damage at fertilization.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Turner, E -- Hager, L J -- Shapiro, B M -- GM23910/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1988 Nov 11;242(4880):939-41.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of Washington, Seattle 98195.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3187533" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acids, Sulfur/*metabolism ; Animals ; Catalase/metabolism ; Disulfides/metabolism ; Female ; Fertilization ; Glutathione/metabolism ; Glutathione Peroxidase/*metabolism ; Kinetics ; *Methylhistidines ; NADP/metabolism ; Ovum/*metabolism ; Oxidation-Reduction ; Sea Urchins
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  • 28
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    Kin selection and the evolution of monogamy (1988)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1988-06-17
    Description: A two-locus genetic model is studied in which one locus controls the tendency of individuals to act altruistically toward siblings and the other locus controls the mating habits of females. It is demonstrated that genetic variation at the altruism locus is often sufficient to induce an increase in the frequency of genes that cause females to produce all of their offspring with a single mate. This occurs because of nonrandom associations that develop between genes that cause altruism and those that affect female mating behavior. The results provide a new explanation for the evolution of monogamy, and they suggest a previously unexplored mechanism for the evolution of a variety of other behavioral traits as well.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Peck, J R -- Feldman, M W -- GM 10452/GM/NIGMS NIH HHS/ -- GM 28016/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1988 Jun 17;240(4859):1672-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, Stanford University, CA 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3381088" target="_blank"〉PubMed〈/a〉
    Keywords: *Altruism ; Animals ; *Biological Evolution ; Female ; Genotype ; Humans ; Male ; Mathematics ; Polymorphism, Genetic ; Recombination, Genetic ; *Sexual Behavior, Animal ; *Sibling Relations
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  • 29
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    Fetal panel to meet (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-09-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roberts, L -- New York, N.Y. -- Science. 1988 Sep 2;241(4870):1164.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3413481" target="_blank"〉PubMed〈/a〉
    Keywords: *Abortion, Induced ; *Ethics, Medical ; Female ; *Fetus ; Humans ; *Legislation, Medical ; National Institutes of Health (U.S.) ; Pregnancy ; United States
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    Blockage of ovulation by an angiotensin antagonist (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-06-17
    Description: Angiotensin II (Ang II) is present in high concentrations in preovulatory follicular fluid, and ovarian follicular cells have specific Ang II receptors. To investigate the possible direct involvement of Ang II in ovulation the specific receptor antagonist of Ang II, saralasin, was administered by intraperitoneal injection to immature rats in which follide development and ovulation had been induced with pregnant mare serum gonadotrophin (PMSG) and human chorionic gonadotrophin (hCG), respectively. Saralasin halved the number of oocytes found in the fallopian tubes 17 to 20 hours after administration of hCG. The antiovulatory effect was observed when saralasin was given 1 hour before hCG or 1 or 3 hours after hCG but not when given 5 hours after hCG. Simultaneous administration of Ang II reversed the saralasin blockage of ovulation. These results indicate a direct, obligate role for Ang II in ovulation and raise the possibility of contraceptive and profertility applications for agonists or antagonists of the renin-angiotensin system that are aimed at the ovulatory process.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pellicer, A -- Palumbo, A -- DeCherney, A H -- Naftolin, F -- HD22970/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1988 Jun 17;240(4859):1660-1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Obstetrics and Gynecology, 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/3381087" target="_blank"〉PubMed〈/a〉
    Keywords: Angiotensin II/antagonists & inhibitors/*physiology ; Animals ; Cell Count ; Chorionic Gonadotropin/pharmacology ; Fallopian Tubes/cytology ; Female ; Gonadotropins, Equine/pharmacology ; Oocytes/cytology ; Ovulation/*drug effects ; Rats ; Rats, Inbred Strains ; Saralasin/*pharmacology
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    Ethical issues in the prevention and treatment of HIV infection and AIDS (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-02-05
    Description: The epidemic of infection with the human immunodeficiency virus (HIV) and the acquired immunodeficiency syndrome (AIDS) poses a major ethical question: How can we control the epidemic and the harm that it causes without unjustly discriminating against particular social groups and without unnecessarily infringing on the freedom of individuals? This question pertains to three spheres of public policy in the United States: public health, the delivery of health care, and research. In the public health sphere, vigorous educational efforts will be required, as will modified approaches to intravenous drug use, prostitution, and homosexual and bisexual sexual activity. Carefully targeted, voluntary testing and screening programs should be coupled with counseling and with guarantees of confidentiality and nondiscrimination where these are appropriate. Both health care workers and the health care system have a moral obligation to provide care to people with HIV infection, but heroic self-sacrifice should not be required provided that infection control precautions are observed. Patients with neurological involvement and terminally ill patients will benefit from statutes allowing recognition of advance directives about preferred modes of care or nontreatment. There is a moral imperative to perform intensive research directed toward the understanding, treatment, and prevention of HIV infection and AIDS. The research process will raise challenging ethical questions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Walters, L -- New York, N.Y. -- Science. 1988 Feb 5;239(4840):597-603.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Bioethics, Kennedy Institute of Ethics, Washington, DC 20057.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3340846" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*prevention & control/therapy ; Adult ; Beneficence ; Biomedical Research ; Bisexuality ; Brain Diseases ; Delivery of Health Care ; *Ethics, Medical ; Female ; Government Regulation ; Health Education ; Health Policy ; Homosexuality ; Humans ; Male ; Mandatory Programs ; *Moral Obligations ; Personal Autonomy ; Resource Allocation ; Risk Assessment ; Social Justice ; Substance-Related Disorders ; United States ; *Voluntary Programs
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    Directional selection and the evolution of breeding date in birds (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-05-06
    Description: In many bird species, those pairs that breed earlier in the season have higher reproductive success than those that breed later. Since breeding date is known to be heritable, it is unclear why it does not evolve to an earlier time. Under assumptions outlined by Fisher, a model is developed that shows how breeding date may have considerable additive genetic variance, appear to be under directional selection, and yet not evolve. These results provide a general explanation for a persistent correlation of fitness with a variety of traits in natural populations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Price, T -- Kirkpatrick, M -- Arnold, S J -- 1R01GM3549201/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1988 May 6;240(4853):798-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of California, San Diego, La Jolla 92093.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3363360" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Birds/*physiology ; Female ; Fertility ; Genetic Variation ; Nutritional Status ; *Reproduction ; *Seasons ; *Selection, Genetic ; Time Factors
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    Developmental expression of PDGF, TGF-alpha, and TGF-beta genes in preimplantation mouse embryos (1988)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1988-09-30
    Description: Control of growth and differentiation during mammalian embryogenesis may be regulated by growth factors from embryonic or maternal sources. With the use of single-cell messenger RNA phenotyping, the simultaneous expression of growth factor transcripts in single or small numbers of preimplantation mouse embryos was examined. Transcripts for platelet-derived growth factor A chain (PDGF-A), transforming growth factor (TGF)-alpha, and TGF-beta 1, but not for four other growth factors, were found in whole blastocysts. TGF-alpha, TGF-beta 1, and PDGF antigens were detected in blastocysts by immunocytochemistry. Both PDGF-A and TGF-alpha were detected as maternal transcripts in the unfertilized ovulated oocyte, and again in blastocysts. TGF-beta 1 transcripts appeared only after fertilization. The expression of a subset of growth factors in mouse blastocysts suggests a role for these factors in the growth and differentiation of early mammalian embryos.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rappolee, D A -- Brenner, C A -- Schultz, R -- Mark, D -- Werb, Z -- 5T32 ES07106/ES/NIEHS NIH HHS/ -- HD22681/HD/NICHD NIH HHS/ -- HD23539/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1988 Sep 30;241(4874):1823-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Radiobiology and Environmental Health, University of California, San Francisco 94143-0750.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3175624" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blastocyst/*physiology ; Cleavage Stage, Ovum/physiology ; Embryonic Development ; Female ; Gene Expression Regulation ; Growth Substances/*genetics ; Mice ; Oocytes/physiology ; Platelet-Derived Growth Factor/*genetics ; Pregnancy ; RNA, Messenger/genetics ; Transcription, Genetic ; Transforming Growth Factors/*genetics
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    Dynamic changes in inhibin messenger RNAs in rat ovarian follicles during the reproductive cycle (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-03-11
    Description: The alterations in morphology and function of the ovarian follicle as it matures, ovulates, and becomes a corpus luteum are dramatic. A variety of steroid and polypeptide hormones influence these processes, and the ovary in turn produces specific hormonal signals for endocrine regulation. One such signal is inhibin, a heterodimeric protein that suppresses the secretion of follicle-stimulating hormone from pituitary gonadotrophs. Rat inhibin complementary DNA probes have been used to examine the levels and distribution of inhibin alpha-and beta A-subunit messenger RNAs in the ovaries of cycling animals. Striking, dynamic changes have been found in inhibin messenger RNA accumulation during the developmental maturation of the ovarian follicle.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Woodruff, T K -- D'Agostino, J -- Schwartz, N B -- Mayo, K E -- HD07504/HD/NICHD NIH HHS/ -- HD21921/HD/NICHD NIH HHS/ -- P01 HD021921/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1988 Mar 11;239(4845):1296-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Molecular Biology and Cell Biology, Northwestern University, Evanston, IL 60208.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3125611" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Estrus ; Female ; Follicle Stimulating Hormone/blood ; Inhibins/*genetics ; Luteinizing Hormone/blood ; Macromolecular Substances ; Nucleic Acid Hybridization ; Ovarian Follicle/*physiology ; Ovary/physiology ; RNA, Messenger/*genetics/metabolism ; Rats
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    Lipoprotein mutations in pigs are associated with elevated plasma cholesterol and atherosclerosis (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-12-19
    Description: A strain of pigs bearing three immunogenetically defined lipoprotein-associated markers (allotypes), designated Lpb5, Lpr1, and Lpu1, has marked hypercholesterolemia on a low fat, cholesterol-free diet. Unlike individuals with familial hypercholesterolemia or WHHL rabbits, the affected pigs have normal low density lipoprotein receptor activity. The animals, by 7 months of age, have extensive atherosclerotic lesions in all three coronary arteries. This strain of pig represents an animal model for atherosclerosis and hypercholesterolemia associated with mutations affecting the structures of plasma lipoproteins. One of the variant apolipoproteins, Lpb5, is apolipoprotein-B. A second variant apolipoprotein (Lpr1), termed apo-R, is a 23-kilodalton protein present in both the very low density (d less than 1.006 g/ml) and the very high density (d greater than 1.21 g/ml) fractions of pig plasma. Isoforms of this protein correlate with two Lpr alleles, Lpr1 and Lpr2. The Lpr genes segregate independently of the Lpb5 and Lpu1 alleles. The Lpu1 allotype is a component of low density lipoprotein and is genetically linked to Lpb5.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rapacz, J -- Hasler-Rapacz, J -- Taylor, K M -- Checovich, W J -- Attie, A D -- AG05-856/AG/NIA NIH HHS/ -- HL30594/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1986 Dec 19;234(4783):1573-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3787263" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Apolipoproteins B/genetics ; Arteriosclerosis/blood/*genetics ; Cholesterol/blood ; *Disease Models, Animal ; Female ; Genotype ; Hypercholesterolemia/blood/*genetics ; Immunologic Tests ; Lipoproteins/blood/*genetics ; Lipoproteins, LDL/blood/genetics ; Lipoproteins, VLDL/blood/genetics ; Male ; Mutation ; Receptors, LDL/metabolism ; Swine
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    Human multidrug-resistant cell lines: increased mdr1 expression can precede gene amplification (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-05-02
    Description: The development of simultaneous resistance to multiple structurally unrelated drugs is a major impediment to cancer chemotherapy. Multidrug resistance in human KB carcinoma cells selected in colchicine, vinblastine, or Adriamycin is associated with amplification of specific DNA sequences (the multidrug resistance locus, mdr1). During colchicine selection resistance is initially accompanied by elevated expression of a 4.5-kilobase mdr1 messenger RNA (mRNA) without amplification of the corresponding genomic sequences. During selection for increased levels of resistance, expression of this mRNA is increased simultaneously with amplification of mdr1 DNA. Increased expression and amplification of mdr1 sequences were also found in multidrug-resistant sublines of human leukemia and ovarian carcinoma cells. These results suggest that increased expression of mdr1 mRNA is a common mechanism for multidrug resistance in human cells. Activation of the mdr1 gene by mutations or epigenetic changes may precede its amplification during the development of resistance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shen, D W -- Fojo, A -- Chin, J E -- Roninson, I B -- Richert, N -- Pastan, I -- Gottesman, M M -- New York, N.Y. -- Science. 1986 May 2;232(4750):643-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3457471" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Colchicine/pharmacology ; Cricetinae ; Cricetulus ; DNA, Neoplasm/genetics ; Doxorubicin/pharmacology ; *Drug Resistance ; Female ; *Gene Amplification ; Humans ; Leukemia, Lymphoid/drug therapy ; Neoplasms/*drug therapy/genetics ; Nucleic Acid Hybridization ; Ovarian Neoplasms/drug therapy ; RNA, Messenger/genetics ; Vinblastine/pharmacology
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    Calcium antagonist receptors in cardiomyopathic hamster: selective increases in heart, muscle, brain (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-04-25
    Description: The Syrian cardiomyopathic hamster has a hereditary disease in which a progressive myocardial necrosis mimics human forms of cardiac hypertrophy. Lesions are associated with calcium overload and can be prevented with the calcium antagonist verapamil. Numbers of receptor binding sites for calcium antagonists in heart, brain, skeletal muscle, and smooth muscle were markedly increased in cardiomyopathic hamsters. The uptake of calcium-45 into brain synaptosomes was also increased in cardiomyopathic hamsters. The increase in calcium antagonist receptors and related voltage-sensitive calcium channels may be involved in the pathogenesis of this cardiomyopathy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wagner, J A -- Reynolds, I J -- Weisman, H F -- Dudeck, P -- Weisfeldt, M L -- Snyder, S H -- HL-17655/HL/NHLBI NIH HHS/ -- MH-18501/MH/NIMH NIH HHS/ -- NS-16375/NS/NINDS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1986 Apr 25;232(4749):515-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3008330" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/metabolism/physiopathology ; *Brain Chemistry ; Calcium/metabolism ; Calcium Channels ; Cardiomyopathy, Hypertrophic/*physiopathology ; Cricetinae ; Disease Models, Animal ; Female ; Heart/physiopathology ; Male ; Mesocricetus ; Muscle, Smooth/analysis/metabolism ; Muscles/*analysis/metabolism/physiopathology ; Myocardium/*analysis/metabolism ; Nifedipine/analogs & derivatives/metabolism ; Nitrendipine ; Receptors, Nicotinic/*analysis/metabolism/physiology ; Synaptosomes/metabolism ; Verapamil/metabolism
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    Fertility in the United States (1986)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1986-10-31
    Description: From the postwar high of 3.8 births per woman at the peak of the baby boom, the total fertility rate in the United States has fallen to 1.8, where it has remained unchanged for nearly a decade. This below-replacement level of fertility has, in recent decades, characterized most Western countries, some of which have shown declines to well below 1.5 births per woman. Were it not for the continued infusion of immigrants, the U.S. population, which already shows the aging characteristic of low fertility, would stop growing and begin to decline before the middle of the next century. The low fertility in the United States has been accomplished by a postponement of marriage and by the widespread use of contraception, with heavy reliance on surgical sterilization as a contraceptive method. Judging from the experience of other Western countries and from our own historical experience of two centuries of fertility decline interrupted only by the baby boom, as well as from the absence of social trends that would counteract those contributing to that decline, the prognosis is for a continued low level of fertility in the United States.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Westoff, C F -- New York, N.Y. -- Science. 1986 Oct 31;234(4776):554-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3532324" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; *Birth Rate ; Contraception/history ; Ethnic Groups ; Female ; Fertility ; Forecasting ; History, 20th Century ; Humans ; Population Dynamics ; Population Growth ; Pregnancy ; Pregnancy in Adolescence ; United States
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    Billings ovulation method (1986)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1986-02-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilson, M A -- New York, N.Y. -- Science. 1986 Feb 21;231(4740):783.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3945808" target="_blank"〉PubMed〈/a〉
    Keywords: *Family Planning Services ; Female ; Humans ; Ovulation
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  • 40
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    Naturally occurring antihormones: secretion of FSH antagonists by women treated with a GnRH analog (1988)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1988-01-01
    Description: Follicle-stimulating hormone (FSH) is a glycoprotein essential for gonadal development and steroidogenesis. Recent studies suggest that deglycosylation of FSH results in the formation of antagonistic proteins that are capable of binding to gonadal receptors but that are devoid of bioactivity. Treatment of hypogonadal women with an antagonist of gonadotropin-releasing hormone substantially decreased serum FSH bioactivity with minimal changes in immunoreactivity. Chromatofocusing and size fractionation of the serum samples indicated the secretion of immunoreactive FSH isoforms that are devoid of bioactivity but that are capable of blocking FSH action in ovarian granulosa cells. These findings provide the first demonstration of naturally occurring circulating antihormones. These FSH antagonists may play an important role in the physiology and pathophysiology of the gonads.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dahl, K D -- Bicsak, T A -- Hsueh, A J -- HD-06875/HD/NICHD NIH HHS/ -- HD-06939/HD/NICHD NIH HHS/ -- HD-23273/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1988 Jan 1;239(4835):72-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Reproductive Medicine, University of California, San Diego, La Jolla 92093.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3122320" target="_blank"〉PubMed〈/a〉
    Keywords: Biological Assay ; Cross Reactions ; Female ; Follicle Stimulating Hormone/*antagonists & inhibitors/immunology/metabolism ; Glycoproteins/physiology ; Gonadotropin-Releasing Hormone/*antagonists & inhibitors ; Humans ; Isoelectric Point ; Radioligand Assay ; Structure-Activity Relationship
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    Cyclic AMP-responsive DNA-binding protein: structure based on a cloned placental cDNA (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-12-09
    Description: Cyclic AMP (cAMP) is an intracellular second messenger that activates transcription of many cellular genes. A palindromic consensus DNA sequence, TGACGTCA, functions as a cAMP-responsive transcriptional enhancer (CRE). The CRE binds a cellular protein of 38 kD in placental JEG-3 cells. A placental lambda gt11 library was screened for expression of specific CRE-binding proteins with the CRE sequence as a radioactive probe. A cDNA encoding a protein of 326 amino acids with the binding properties of a specific CRE-binding protein (CREB) was isolated. The protein contains a COOH-terminal basic region adjacent to a sequence similar to the "leucine zipper" sequence believed to be involved in DNA binding and in protein-protein contacts in several other DNA-associated transcriptional proteins including the products of the c-myc, c-fos, and c-jun oncogenes and GCN4. The CREB protein also contains an NH2-terminal acidic region proposed to be a potential transcriptional activation domain. The putative DNA-binding domain of CREB is structurally similar to the corresponding domains in the phorbol ester-responsive c-jun protein and the yeast transcription factor GCN4.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hoeffler, J P -- Meyer, T E -- Yun, Y -- Jameson, J L -- Habener, J F -- DK 25532/DK/NIDDK NIH HHS/ -- DK 30457/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1988 Dec 9;242(4884):1430-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Endocrinology, Massachusetts General Hospital, Boston.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2974179" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; *Cloning, Molecular ; Cyclic AMP Response Element-Binding Protein ; DNA/*genetics ; DNA-Binding Proteins/*genetics/physiology ; Enhancer Elements, Genetic ; Female ; Humans ; Molecular Sequence Data ; Placenta/*metabolism ; Pregnancy ; Transcription, Genetic
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    Requirement for glycine in activation of NMDA-receptors expressed in Xenopus oocytes (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-08-12
    Description: Receptors for N-methyl-D-aspartate (NMDA) are involved in many plastic and pathological processes in the brain. Glycine has been reported to potentiate NMDA responses in neurons and in Xenopus oocytes injected with rat brain messenger RNA. Glycine is now shown to be absolutely required for activation of NMDA receptors in oocytes. In voltage-clamped oocytes, neither perfusion nor rapid pressure application of NMDA onto messenger RNA-injected oocytes caused a distinct ionic current without added glycine. When glycine was added, however, NMDA evoked large inward currents. The concentration of glycine required to produce a half-maximal response was 670 nanomolar, and the glycine dose-response curve extrapolated to zero in the absence of glycine. Several analogs of glycine could substitute for glycine, among which D-serine and D-alanine were the most effective. The observation that D-amino acids are effective will be important in developing drugs targeted at the glycine site.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kleckner, N W -- Dingledine, R -- NS17771/NS/NINDS NIH HHS/ -- NS22249/NS/NINDS NIH HHS/ -- NS23804/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1988 Aug 12;241(4867):835-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, University of North Carolina, Chapel Hill 27599-7365.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2841759" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acids/pharmacology ; Animals ; Brain/metabolism ; Female ; Glycine/*analogs & derivatives/*pharmacology ; Kinetics ; Oocytes/drug effects/*metabolism ; RNA, Messenger/genetics ; Rats ; Receptors, N-Methyl-D-Aspartate ; Receptors, Neurotransmitter/drug effects/genetics/*metabolism ; Xenopus
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    Fertilization events induced by neurotransmitters after injection of mRNA in Xenopus eggs (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-07-22
    Description: Fertilization initiates in the egg a dramatic increase in intracellular calcium that opens ion channels and causes exocytosis. To explore the possibility that these events might involve a receptor-mediated pathway, receptors for serotonin or acetylcholine (M1 muscarinic) were expressed in the Xenopus egg; serotonin or acetylcholine then could initiate a series of responses similar to those normally initiated by sperm. Thus, there may be an endogenous receptor in the egg membrane that is activated by sperm, and the serotonin or M1 muscarinic receptor may replace the sperm receptor in this pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kline, D -- Simoncini, L -- Mandel, G -- Maue, R A -- Kado, R T -- Jaffe, L A -- New York, N.Y. -- Science. 1988 Jul 22;241(4864):464-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, University of Connecticut Health Center, Farmington 06032.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3134693" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cloning, Molecular ; Cytoplasmic Granules/physiology ; Endocytosis ; Exocytosis ; Female ; *Fertilization ; GTP-Binding Proteins/physiology ; Genetic Engineering ; Inositol Phosphates/physiology ; Male ; Membrane Potentials ; Receptors, Muscarinic/*physiology ; Receptors, Serotonin/*physiology ; Sperm-Ovum Interactions ; Xenopus laevis
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    Potassium salt microinjection into Xenopus oocytes mimics gonadotropin treatment (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-06-03
    Description: Gonadotropin stimulates protein synthesis and growth in ovarian oocytes. The hormone is also known to modify transfollicular K+ fluxes and is now shown to cause increased intraoocytic K+ activity (aK). The hormone's effect on aK was duplicated by microinjecting K+ salts into oocytes which were incubated in paraffin oil. This treatment mimicked the influence of gonadotropin on both the rate of protein synthesis and the synthesis of specific polypeptides. These findings suggest that gonadotropin-stimulated oocyte growth is attributable largely to the hormone's influence on transfollicular K+ fluxes. They support the hypothesis that the K+ flux and aK changes observed during cell activation are critical in causing subsequent increases in protein synthesis and growth.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lau, Y T -- Yassin, R R -- Horowitz, S B -- New York, N.Y. -- Science. 1988 Jun 3;240(4857):1321-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology and Biophysics, Michigan Cancer-Foundation, Detroit 48201.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3375816" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chorionic Gonadotropin/*pharmacology ; Electrophoresis, Polyacrylamide Gel ; Female ; Leucine/metabolism ; Microinjections ; Oocytes/drug effects/growth & development/*metabolism ; Potassium/metabolism ; Potassium Chloride/*pharmacology ; Protein Biosynthesis ; Xenopus laevis
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    Evidence that the M2 membrane-spanning region lines the ion channel pore of the nicotinic receptor (1988)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1988-12-16
    Description: Site-directed mutagenesis and expression in Xenopus oocytes were used to study acetylcholine receptors in which serine residues (i) were replaced by alanines (alpha, delta subunits) or (ii) replaced a phenylalanine (beta subunit) at a postulated polar site within the M2 transmembrane helix. As the number of serines decreased, there were decreases in the residence time and consequently the equilibrium binding affinity of QX-222, a quaternary ammonium anesthetic derivative thought to bind within the open channel. Receptors with three serine-to-alanine mutations also displayed a selective decrease in outward single-channel currents. Both the direction of this rectification and the voltage dependence of QX-222 blockade suggest that the residues mutated are within the aqueous pore of the receptor and near its cytoplasmic (inner) surface.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Leonard, R J -- Labarca, C G -- Charnet, P -- Davidson, N -- Lester, H A -- NS-11756/NS/NINDS NIH HHS/ -- NS-8083/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1988 Dec 16;242(4885):1578-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biology, California Institute of Technology, Pasadena 91125.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2462281" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Membrane/*physiology ; Cloning, Molecular ; Electric Conductivity ; Female ; Ion Channels/*physiology ; Kinetics ; Membrane Potentials ; Mutation ; Oocytes/physiology ; RNA, Messenger/genetics ; Receptors, Nicotinic/genetics/*physiology ; Transcription, Genetic ; Xenopus
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    Subtleties of mating competition (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-11-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1988 Nov 4;242(4879):668.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3187517" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Evolution ; Female ; Male ; Primates/*physiology ; Sexual Behavior, Animal/*physiology ; Spermatozoa/physiology ; Testis/anatomy & histology
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    Hotshots, hotspots, and female preference (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-06-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1988 Jun 3;240(4857):1277-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3375815" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Birds/physiology ; Female ; Male ; *Sex Characteristics ; *Sexual Behavior, Animal
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    Why is the world full of large females? (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-05-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1988 May 13;240(4854):884.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3363371" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Body Constitution ; Body Height ; Body Weight ; Female ; *Fertility ; Male ; Models, Biological ; *Sex Characteristics
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    Ethical issues raised (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-04-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1988 Apr 22;240(4851):391.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3358126" target="_blank"〉PubMed〈/a〉
    Keywords: *Aborted Fetus ; Abortion, Spontaneous ; Advisory Committees ; Brain/embryology ; *Ethics ; Federal Government ; Female ; *Fetal Research ; Government Regulation ; Humans ; Nerve Tissue/transplantation ; Parkinson Disease/*therapy ; Pregnancy ; *Tissue and Organ Procurement
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    A single receptor binds both insulin-like growth factor II and mannose-6-phosphate (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-03-04
    Description: Amino acid sequences deduced from rat complementary DNA clones encoding the insulin-like growth factor II (IGF-II) receptor closely resemble those of the bovine cation-independent mannose-6-phosphate receptor (Man-6-P receptorCI), suggesting they are identical structures. It is also shown that IGF-II receptors are adsorbed by immobilized pentamannosyl-6-phosphate and are specifically eluted with Man-6-P. Furthermore, Man-6-P specifically increases by about two times the apparent affinity of the purified rat placental receptor for 125I-labeled IGF-II. These results indicate that the type II IGF receptor contains cooperative, high-affinity binding sites for both IGF-II and Man-6-P-containing proteins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉MacDonald, R G -- Pfeffer, S R -- Coussens, L -- Tepper, M A -- Brocklebank, C M -- Mole, J E -- Anderson, J K -- Chen, E -- Czech, M P -- Ullrich, A -- CA 39240/CA/NCI NIH HHS/ -- DK 30648/DK/NIDDK NIH HHS/ -- DK 34063/DK/NIDDK NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1988 Mar 4;239(4844):1134-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of Massachusetts Medical Center, Worcester 01655.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2964083" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Carrier Proteins/genetics/*metabolism ; Cell Membrane/analysis/metabolism ; Chromatography, Affinity ; DNA/genetics ; Female ; Hexosephosphates/*metabolism ; Insulin-Like Growth Factor II/*metabolism ; Mannosephosphates/*metabolism ; Molecular Sequence Data ; Placenta/analysis ; Pregnancy ; Rats ; Receptor, IGF Type 2 ; Receptor, Insulin/genetics/*metabolism ; Receptors, Somatomedin ; Sequence Homology, Nucleic Acid ; Somatomedins/*metabolism
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    Dynamics of lymphocyte-endothelial interactions in vivo (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-01-24
    Description: The dynamics of the attachment of lymphocytes to the endothelium of high endothelial venules in murine Peyer's patches were studied in vivo. Lymphocytes adhered readily to the endothelium lining these vessels, but most of the adhering cells detached within a few seconds. Many lymphocytes, however, experienced multiple collisions with the high endothelial venules, and this substantially increased the efficiency of lymphocyte collection by these vessels.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bjerknes, M -- Cheng, H -- Ottaway, C A -- New York, N.Y. -- Science. 1986 Jan 24;231(4736):402-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3941903" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Endothelium/physiology ; Female ; In Vitro Techniques ; Lymphocytes/*physiology ; Mice ; Mice, Inbred BALB C ; Microscopy, Fluorescence ; Peyer's Patches/*physiology
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    Immunoregulatory feedback between interleukin-1 and glucocorticoid hormones (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-08-08
    Description: The production and action of immunoregulatory cytokines, including interleukin-1 (IL-1), are inhibited by glucocorticoid hormones in vivo and in vitro. Conversely, glucocorticoid blood levels were increased by factors released by human leukocytes exposed to Newcastle disease virus preparations. This activity was neutralized by an antibody to IL-1. Therefore the capacity of IL-1 to stimulate the pituitary-adrenal axis was tested. Administration of subpyrogenic doses of homogeneous human monocyte-derived IL-1 or the pI 7 form of human recombinant IL-1 to mice and rats increased blood levels of adrenocorticotropic hormone (ACTH) and glucocorticoids. Another monokine, tumor necrosis factor, and the lymphokines IL-2 and gamma-interferon had no such effects when administered in doses equivalent to or higher than those of IL-1. The stimulatory effect of IL-1 on the pituitary-adrenal axis seemed not to be mediated by the secondary release of products from mature T lymphocytes since IL-1 was endocrinologically active when injected into athymic nude mice. These results strongly support the existence of an immunoregulatory feedback circuit in which IL-1 acts as an afferent and glucocorticoid as an efferent hormonal signal.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Besedovsky, H -- del Rey, A -- Sorkin, E -- Dinarello, C A -- AI15614/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1986 Aug 8;233(4764):652-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3014662" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenocorticotropic Hormone/blood/physiology ; Animals ; Corticosterone/blood/physiology ; Female ; Glucocorticoids/blood/immunology/*physiology ; Humans ; Interleukin-1/immunology/pharmacology/*physiology ; Leukocytes/drug effects/physiology ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C3H ; Mice, Nude ; Newcastle disease virus/immunology ; Rats ; Rats, Inbred Strains
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    Human beta-adrenoceptors: relation of myocardial and lymphocyte beta-adrenoceptor density (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-03-28
    Description: In human right atria obtained from 21 patients during open-heart surgery, beta-adrenoceptor density [assessed by iodine-125-labeled (-)-cyanopindolol binding] and responsiveness (positive inotropic responses to isoprenaline) were linearly related to the beta-adrenoceptor density in the corresponding circulating lymphocytes. This direct relation of human myocardial and lymphocyte beta-adrenoceptor alterations, therefore, makes it possible to monitor drug- or disease-induced beta-adrenoceptor changes in tissues not easily accessible in humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brodde, O E -- Kretsch, R -- Ikezono, K -- Zerkowski, H R -- Reidemeister, J C -- New York, N.Y. -- Science. 1986 Mar 28;231(4745):1584-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3006250" target="_blank"〉PubMed〈/a〉
    Keywords: Female ; Heart Atria ; Humans ; In Vitro Techniques ; Isoproterenol/pharmacology ; Lymphocytes/*metabolism ; Male ; Middle Aged ; Myocardial Contraction/drug effects ; Myocardium/*metabolism ; Receptors, Adrenergic, beta/*metabolism
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    Atrial natriuretic peptide elevation in congestive heart failure in the human (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-03-07
    Description: A sensitive radioimmunoassay for atrial natriuretic peptide was used to examine the relation between circulating atrial natriuretic peptide and cardiac filling pressure in normal human subjects, in patients with cardiovascular disease and normal cardiac filling pressure, and in patients with cardiovascular disease and elevated cardiac filling pressure with and without congestive heart failure. The present studies establish a normal range for atrial natriuretic peptide in normal human subjects. These studies also establish that elevated cardiac filling pressure is associated with increased circulating concentrations of atrial natriuretic peptide and that congestive heart failure is not characterized by a deficiency in atrial natriuretic peptide, but with its elevation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Burnett, J C Jr -- Kao, P C -- Hu, D C -- Heser, D W -- Heublein, D -- Granger, J P -- Opgenorth, T J -- Reeder, G S -- New York, N.Y. -- Science. 1986 Mar 7;231(4742):1145-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2935937" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; Atrial Natriuretic Factor/*blood ; Cardiovascular Diseases/blood ; Female ; Heart Failure/*blood ; Hemodynamics ; Humans ; Male ; Middle Aged ; Radioimmunoassay
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    Perfumes and preference (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-03-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Easton, T A -- New York, N.Y. -- Science. 1986 Mar 14;231(4743):1235.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3945820" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Female ; Homosexuality ; Humans ; Male ; *Perfume ; Rats ; *Sexual Behavior
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    Estrogen-induced factors of breast cancer cells partially replace estrogen to promote tumor growth (1986)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1986-06-20
    Description: The hormone 17 beta-estradiol acts through its receptor system to induce MCF-7 human breast cancer cells to form tumors in athymic mice. In vitro studies have identified the production of estrogen-induced growth factors from MCF-7 cells that may have a role in growth control. These induced growth factors were sufficient to stimulate MCF-7 tumor growth in ovariectomized athymic mice, thus partially replacing estradiol. Growth factors may act as estrogen-induced "second messengers" in estrogen-responsive growth of human breast cancer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dickson, R B -- McManaway, M E -- Lippman, M E -- New York, N.Y. -- Science. 1986 Jun 20;232(4757):1540-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3715461" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Breast Neoplasms/*pathology ; Cell Division ; Cell Line ; Culture Media ; Estradiol/*physiology ; Female ; Humans ; Mice ; Mice, Nude ; Neoplasm Transplantation ; Ovariectomy ; Receptors, Estradiol/*physiology ; Receptors, Estrogen/*physiology ; Transplantation, Heterologous
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    Transplantation of fetal hematopoietic stem cells in utero: the creation of hematopoietic chimeras (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-08-15
    Description: Transplantation of normal, immature, fetal hematopoietic cells into a preimmune fetal recipient with a congenital hemoglobinopathy may allow partial reconstitution of normal hemoglobin production without the complications associated with postnatal bone marrow transplantation (immunosuppression and the occurrence of graft versus host disease). In order to test this hypothesis the naturally occurring polymorphism at the beta-hemoglobin locus of the sheep was used as a marker for engraftment and hematopoietic chimerism. Intraperitoneal injection of allogeneic fetal stem cells into normal fetal lambs resulted in hematopoietic chimerism in three of four surviving recipients. This chimerism has been sustained for 6 months after birth and 9 months after engraftment, without evidence of graft versus host disease, and without the use of immunosuppressive therapy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Flake, A W -- Harrison, M R -- Adzick, N S -- Zanjani, E D -- AM-24027/AM/NIADDK NIH HHS/ -- AM-29890/AM/NIADDK NIH HHS/ -- AM-30914/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1986 Aug 15;233(4765):776-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2874611" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Chimera ; Female ; Fetus ; Graft vs Host Disease ; *Hematopoietic Stem Cell Transplantation ; Hemoglobin A/*analysis ; Hemoglobins/*analysis ; Pregnancy ; Sheep ; Transplantation, Homologous
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    The neuroendocrine thymus: coexistence of oxytocin and neurophysin in the human thymus (1986)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1986-04-25
    Description: Immunoreactive oxytocin and neurophysin were identified and measured by radioimmunoassay in human thymus extracts. Serial dilutions of extracts paralleled the appropriate standard curves. Thymus-extracted oxytocin and neurophysin eluted in the same positions as reference preparations on Sephadex G-75. Authenticity of oxytocin was confirmed by biological assay and high-performance liquid chromatography analysis. In most instances, thymus contents of oxytocin and neurophysin were far greater than those expected from known circulating concentrations and declined with increasing age. The molar ratio of oxytocin to neurophysin in thymus was similar to that found in the hypothalamo-neurohypophyseal system, which strongly suggested with the other data a local synthesis of oxytocin. These findings indicate the presence of neurohypophyseal peptides in the human thymus and further support the concept of a neuroendocrine function integrated in an immune structure.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Geenen, V -- Legros, J J -- Franchimont, P -- Baudrihaye, M -- Defresne, M P -- Boniver, J -- New York, N.Y. -- Science. 1986 Apr 25;232(4749):508-11.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3961493" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Age Factors ; Child ; Chromatography, Gel ; Chromatography, High Pressure Liquid ; Female ; Humans ; Infant, Newborn ; Male ; Middle Aged ; Myasthenia Gravis/physiopathology ; Neurophysins/*analysis/isolation & purification/physiology ; Oxytocin/*analysis/isolation & purification/physiology ; Radioimmunoassay ; Thymus Gland/*analysis/physiology/physiopathology
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    Nutrition policy controversies (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-05-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Harper, A E -- New York, N.Y. -- Science. 1986 May 16;232(4752):810-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3704627" target="_blank"〉PubMed〈/a〉
    Keywords: Diet ; Female ; Humans ; Life Expectancy ; Male ; *Nutritional Physiological Phenomena
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  • 60
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    Anti-idiotypic antibodies bear the internal image of a human tumor antigen (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-04-04
    Description: Goat antibodies to idiotypes (anti-idiotypic antibodies; Ab2) that recognize an idiotype associated with the combining site of a BALB/c mouse IgG2a monoclonal antibody (Ab1) to human gastric carcinoma were used to immunize BALB/c mice and rabbits. A monoclonal anti-anti-idiotypic antibody (Ab3) of IgG1 isotype was obtained after immunization of mice. The Ab3 and the Ab1 showed identical binding specificities and bound with similar avidities to the same tumor antigen. The induction of Ab1-like Ab3 by Ab2 was not restricted to mice, since Ab3 could also be induced in rabbits. Both the mouse- and the rabbit-derived Ab3 bound the same gastrointestinal cancer-associated antigen as Ab1. These findings indicate that Ab2 induced the formation of antigen-specific Ab3, probably because it bears the internal image of the tumor-associated antigen. This Ab2 may therefore have potential for modulating the immune response of cancer patients to their tumors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Herlyn, D -- Ross, A H -- Koprowski, H -- CA-10815/CA/NCI NIH HHS/ -- CA-21124/CA/NCI NIH HHS/ -- CA-33490/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1986 Apr 4;232(4746):100-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3952496" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Antibodies ; Antibodies, Monoclonal ; Antigen-Antibody Complex ; Antigens, Neoplasm/*immunology ; Female ; Goats/immunology ; Humans ; Immunoglobulin Idiotypes/*immunology ; Mice ; Mice, Inbred BALB C/immunology ; Neoplasms/immunology ; Rabbits/immunology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Researchers grapple with problems of updating classic psychological test (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-09-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1986 Sep 19;233(4770):1249-51.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3749875" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Female ; Humans ; *Mmpi ; Male ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 62
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    Homelessness: experts differ on root causes (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-05-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1986 May 2;232(4750):569-70.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3961497" target="_blank"〉PubMed〈/a〉
    Keywords: Child ; Family ; Female ; *Homeless Persons/psychology ; Humans ; Mental Disorders/psychology ; Mothers ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 63
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    New growth industry in human growth hormone? (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-10-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G -- New York, N.Y. -- Science. 1986 Oct 3;234(4772):22-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3749891" target="_blank"〉PubMed〈/a〉
    Keywords: Body Height/drug effects ; Child ; Female ; *Growth Hormone/biosynthesis/therapeutic use ; Humans ; Male ; Recombinant Proteins/biosynthesis/therapeutic use
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  • 64
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    Researchers hunt for Alzheimer's disease gene (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-04-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G -- New York, N.Y. -- Science. 1986 Apr 25;232(4749):448-50.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3961489" target="_blank"〉PubMed〈/a〉
    Keywords: Aged ; Alzheimer Disease/*genetics ; Family ; Female ; Genes ; Humans ; Male ; Middle Aged ; Risk
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 65
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    Receptor-associated resistance to growth hormone-releasing factor in dwarf "little" mice (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-04-25
    Description: Anterior pituitaries from the dwarf mouse strain "little" did not release growth hormone or accumulate adenosine 3',5'-monophosphate (cyclic AMP) in response to human and rat growth hormone-releasing factor (GRF). Dibutyryl cyclic AMP, as well as the adenylate cyclase stimulators forskolin and cholera toxin, markedly stimulated growth hormone (GH) release. The basis of the GH deficiency in the little mouse may therefore be a defect in an early stage of GRF-stimulated GH release related either to receptor binding or to the function of the hormone-receptor complex.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jansson, J O -- Downs, T R -- Beamer, W G -- Frohman, L A -- AM 17947/AM/NIADDK NIH HHS/ -- AM 30667/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1986 Apr 25;232(4749):511-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3008329" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Colforsin/pharmacology ; Cyclic AMP/analysis ; Dwarfism, Pituitary/*physiopathology ; Female ; Growth Hormone-Releasing Hormone/metabolism/pharmacology/physiology/secretion ; Humans ; Mice ; Mice, Inbred C57BL ; Mice, Mutant Strains/*physiology ; Pituitary Gland, Anterior/analysis/drug effects/physiopathology/secretion ; Receptors, Cell Surface/metabolism/*physiology ; *Receptors, Neuropeptide ; *Receptors, Pituitary Hormone-Regulating Hormone
    Print ISSN: 0036-8075
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    The slow, insidious natures of the HTLV's (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-01-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1986 Jan 31;231(4737):450-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3001937" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*microbiology/transmission ; Deltaretrovirus/*pathogenicity ; Female ; Humans ; Male ; National Institutes of Health (U.S.) ; Sex ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 67
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    The hypogonadal mouse: reproductive functions restored by gene therapy (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-12-12
    Description: The hypogonadal (hpg) mouse lacks a complete gonadotropin-releasing hormone (GnRH) gene and consequently cannot reproduce. Introduction of an intact GnRH gene into the genome of these mutant mice resulted in complete reversal of the hypogonadal phenotype. Transgenic hpg/hpg homozygotes of both sexes were capable of mating and producing offspring. Pituitary and serum concentrations of luteinizing hormone, follicle-stimulating hormone, and prolactin were restored to those of normal animals. Immunocytochemistry and in situ hybridization showed that GnRH expression was restored in the appropriate hypothalamic neurons of the transgenic hpg animals, an indication of neural-specific expression of the introduced gene.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mason, A J -- Pitts, S L -- Nikolics, K -- Szonyi, E -- Wilcox, J N -- Seeburg, P H -- Stewart, T A -- New York, N.Y. -- Science. 1986 Dec 12;234(4782):1372-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3097822" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Female ; Follicle Stimulating Hormone/blood ; Gene Expression Regulation ; *Genetic Engineering ; Gonadotropin-Releasing Hormone/genetics ; Histocytochemistry ; Hypogonadism/*genetics ; Hypothalamus/analysis/cytology ; Infertility/genetics/*therapy ; Luteinizing Hormone/blood ; Male ; Mice ; Mutation ; Neurons/analysis ; Phenotype ; Prolactin/blood ; Tissue Distribution
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 68
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    Age and infertility (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-09-26
    Description: Direct evidence on age patterns of infecundity and sterility cannot be obtained from contemporary populations because such large fractions of couples use contraception or have been sterilized. Instead, historical data are exploited to yield upper bounds applicable to contemporary populations on the proportions sterile at each age. Examination of recent changes in sexual behavior that may increase infecundity indicates that sexually transmitted infections, the prime candidate for hypothesized rises in infertility, are unlikely to have added to infecundity to any great extent. These results imply that a woman in a monogamous union faces only moderate increases in the probability of becoming sterile (or infecund) until her late thirties. Nevertheless, it appears that recent changes in reproductive behavior were guaranteed to result in the perception that infecundity is on the rise.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Menken, J -- Trussell, J -- Larsen, U -- HD11720/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1986 Sep 26;233(4771):1389-94.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3755843" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Age Factors ; *Aging ; Female ; *Fertility ; Humans ; Infertility, Female/*epidemiology ; Infertility, Male/*epidemiology ; Male ; Marriage ; Middle Aged ; United States
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  • 69
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    Effects of alcohol on the generation and migration of cerebral cortical neurons (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-09-19
    Description: Prenatal exposure to alcohol produces many developmental defects of the central nervous system, such as microcephaly, mental retardation, motor dysfunction, and cognitive deficiencies. Therefore, the generation of neurons in the cerebral cortex was examined in the offspring of female rats fed a diet containing ethanol. Prenatal exposure to ethanol delayed and extended the period during which cortical neurons were generated, reduced the number of neurons in the nature cortex with the same time of origin, and altered the distribution of neurons generated on a particular day. Thus, the proliferation and migration of cortical neurons are profoundly affected by in utero exposure to ethanol.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, M W -- AA 06916/AA/NIAAA NIH HHS/ -- New York, N.Y. -- Science. 1986 Sep 19;233(4770):1308-11.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3749878" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cerebral Cortex/*drug effects/embryology ; Ethanol/*pharmacology ; Female ; Gestational Age ; Humans ; Motor Cortex/drug effects/embryology ; Neurons/*drug effects/embryology ; Pregnancy ; Rats
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 70
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    Mechanism of the rapid effect of 17 beta-estradiol on medial amygdala neurons (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-07-11
    Description: The mechanism by which sex steroids rapidly modulate the excitability of neurons was investigated by intracellular recording of neurons in rat medial amygdala brain slices. Brief hyperpolarization and increased potassium conductance were produced by 17 beta-estradiol. This effect persisted after elimination of synaptic input and after suppression of protein synthesis. Thus, 17 beta-estradiol directly changes the ionic conductance of the postsynaptic membrane of medial amygdala neurons. In addition, a greater proportion of the neurons from females than from males responded to 17 beta-estradiol.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nabekura, J -- Oomura, Y -- Minami, T -- Mizuno, Y -- Fukuda, A -- New York, N.Y. -- Science. 1986 Jul 11;233(4760):226-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3726531" target="_blank"〉PubMed〈/a〉
    Keywords: Amygdala/cytology/*drug effects ; Animals ; Cycloheximide/pharmacology ; Dactinomycin/pharmacology ; Estradiol/*pharmacology ; Female ; Male ; Membrane Potentials/drug effects ; Neurons/drug effects/physiology ; Rats ; Rats, Inbred Strains
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    Sex and needles, not insects and pigs, spread AIDS in Florida town (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-10-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Norman, C -- New York, N.Y. -- Science. 1986 Oct 24;234(4775):415-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3764417" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/classification/epidemiology/*transmission ; Arbovirus Infections/complications ; Female ; Humans ; Male
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Military AIDS testing offers research bonus (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-05-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Norman, C -- New York, N.Y. -- Science. 1986 May 16;232(4752):818-20.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3704628" target="_blank"〉PubMed〈/a〉
    Keywords: *Acquired Immunodeficiency Syndrome/transmission ; Female ; Humans ; Male ; Mass Screening ; *Military Medicine ; United States
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  • 73
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    AIDS in Africa: an epidemiologic paradigm (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-11-21
    Description: Cases of the acquired immune deficiency syndrome (AIDS) have been reported in countries throughout the world. Initial surveillance studies in Central Africa suggest an annual incidence of AIDS of 550 to 1000 cases per million adults. The male to female ratio of cases is 1:1, with age- and sex-specific rates greater in females less than 30 years of age and greater in males over age 40. Clinically, AIDS in Africans is often characterized by a diarrhea-wasting syndrome, opportunistic infections, such as tuberculosis, cryptococcosis, and cryptosporidiosis, or disseminated Kaposi's sarcoma. From 1 to 18% of healthy blood donors and pregnant women and as many as 27 to 88% of female prostitutes have antibodies to human immunodeficiency virus (HIV). The present annual incidence of infection is approximately 0.75% among the general population of Central and East Africa. The disease is transmitted predominantly by heterosexual activity, parenteral exposure to blood transfusions and unsterilized needles, and perinatally from infected mothers to their newborns, and will continue to spread rapidly where economic and cultural factors favor these modes of transmission. Prevention and control of HIV infection through educational programs and blood bank screening should be an immediate public health priority for all African countries.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Quinn, T C -- Mann, J M -- Curran, J W -- Piot, P -- New York, N.Y. -- Science. 1986 Nov 21;234(4779):955-63.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3022379" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*epidemiology/history/transmission ; Africa ; Age Factors ; Antibodies, Viral/analysis ; Blood Transfusion ; Deltaretrovirus/immunology ; Female ; Forecasting ; Humans ; Injections, Intravenous ; Male ; Maternal-Fetal Exchange ; Opportunistic Infections/complications ; Pregnancy ; Prostitution ; Retroviridae/isolation & purification ; Risk ; Sarcoma, Kaposi/epidemiology ; Sex Factors ; Sexually Transmitted Diseases/epidemiology
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  • 74
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    Maleness pinpointed on Y chromosome (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-11-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G -- New York, N.Y. -- Science. 1986 Nov 28;234(4780):1076-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3775376" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Female ; H-Y Antigen/genetics ; Humans ; Lizards ; Male ; Mice ; *Sex Determination Analysis ; *Y Chromosome
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  • 75
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    Epidemiology of drug abuse: an overview (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-11-21
    Description: Issues regarding the use of epidemiology in drug abuse research are discussed and systems for monitoring national trends and identifying risk factors are described. Data indicate a general decline in marijuana use among youth, a cohort aging effect among heroin and marijuana users, and increased prevalence and health consequences associated with cocaine use.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kozel, N J -- Adams, E H -- New York, N.Y. -- Science. 1986 Nov 21;234(4779):970-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3490691" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/complications ; Adolescent ; Adult ; Child ; Cocaine ; Epidemiologic Methods ; Female ; Heroin ; Humans ; Male ; Marijuana Abuse/epidemiology ; Population Surveillance ; Risk ; Substance-Related Disorders/*epidemiology
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  • 76
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    Stress-induced inhibition of reproductive functions: role of endogenous corticotropin-releasing factor (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-02-07
    Description: In the adult castrated male rat, exposure to inescapable, intermittent electroshocks inhibited the pulsatile pattern of luteinizing hormone release and markedly lowered its plasma concentrations. The central administration of the corticotropin-releasing factor (CRF) antagonist alpha-helical ovine CRF residues 9 to 41 reversed the inhibitory action of stress. Neither its peripheral injection, nor the intraventricular injection of the inactive CRF analog des-Glu to Arg ovine CRF was effective. These results suggest that endogenous CRF may mediate some deleterious effects of noxious stimuli on reproduction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rivier, C -- Rivier, J -- Vale, W -- AA03504/AA/NIAAA NIH HHS/ -- AM26741/AM/NIADDK NIH HHS/ -- HD13527/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1986 Feb 7;231(4738):607-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3003907" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenocorticotropic Hormone/physiology ; Animals ; Corticotropin-Releasing Hormone/pharmacology/*physiology ; Electroshock ; Female ; Humans ; Luteinizing Hormone/blood ; Male ; Orchiectomy ; Rats ; *Reproduction/drug effects ; Stress, Psychological/*physiopathology
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  • 77
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    Adrenal-mediated endogenous metabolites inhibit puberty in female mice (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-02-14
    Description: While assessing a potential role of adrenal glands in the production of the hitherto unidentified puberty-delaying pheromone of female mice, the urinary volatile profiles of normal and adrenalectomized animals were quantitatively compared. Six components, whose concentrations were depressed after adrenalectomy, were identified: 2-heptanone, trans-5-hepten-2-one, trans-4-hepten-2-one, n-pentyl acetate, cis-2-penten-1-yl acetate, and 2,5-dimethylpyrazine. When these laboratory-synthesized chemicals were added (in their natural concentrations) to either previously inactive urine from adrenalectomized females or plain water, the biological activity was fully restored.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Novotny, M -- Jemiolo, B -- Harvey, S -- Wiesler, D -- Marchlewska-Koj, A -- New York, N.Y. -- Science. 1986 Feb 14;231(4739):722-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3945805" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenal Glands/*physiology ; Animals ; Female ; Ketones/urine ; Mice ; Ovary/physiology ; Pentanols/urine ; Pheromones/physiology/urine ; Pyrazines/urine ; *Sexual Maturation
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  • 78
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    Shock and tissue injury induced by recombinant human cachectin (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-10-24
    Description: Cachectin (tumor necrosis factor), a protein produced in large quantities by endotoxin-activated macrophages, has been implicated as an important mediator of the lethal effect of endotoxin. Recombinant human cachectin was infused into rats in an effort to determine whether cachectin, by itself, can elicit the derangements of host physiology caused by administration of endotoxin. When administered in quantities similar to those produced endogenously in response to endotoxin, cachectin causes hypotension, metabolic acidosis, hemoconcentration, and death within minutes to hours, as a result of respiratory arrest. Hyperglycemia and hyperkalemia were also observed after infusion. At necropsy, diffuse pulmonary inflammation and hemorrhage were apparent on gross and histopathologic examination, along with ischemic and hemorrhagic lesions of the gastrointestinal tract, and acute renal tubular necrosis. Thus, it appears that a single protein mediator (cachectin) is capable of inducing many of the deleterious effects of endotoxin.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tracey, K J -- Beutler, B -- Lowry, S F -- Merryweather, J -- Wolpe, S -- Milsark, I W -- Hariri, R J -- Fahey, T J 3rd -- Zentella, A -- Albert, J D -- New York, N.Y. -- Science. 1986 Oct 24;234(4775):470-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3764421" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood Glucose/metabolism ; Endotoxins/toxicity ; Female ; Glycoproteins/*toxicity ; Humans ; Potassium/blood ; Rats ; Recombinant Proteins ; Shock/*chemically induced/pathology/physiopathology ; Sodium/blood ; Tumor Necrosis Factor-alpha
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Male-killing bacteria in a parasitic wasp (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-02-28
    Description: A rod-shaped bacterium has been isolated that kills male eggs of the wasp Nasonia vitripennis, a pupal parasite of flies. Only some wasps of this species express this son-killer trait, and these wasps have bacterial infections in various organs. The bacterium was isolated from son-killer wasp tissue and from the hemolymph of fly pupae parasitized by wasps expressing the son-killer trait. Bacteria are apparently transferred to parasitized fly pupae during wasp oviposition, and developing wasp offspring are subsequently infected perorally. Sex-ratio distortion by microorganisms is found in a variety of plants and animals. The infectious peroral transmission of this trait variety of plants and animals. The infectious peroral transmission of this trait is in contrast to the typical pattern of cytoplasmic inheritance of sex-ratio distortion in these other systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Werren, J H -- Skinner, S W -- Huger, A M -- 5 T32 6MO7131/PHS HHS/ -- New York, N.Y. -- Science. 1986 Feb 28;231(4741):990-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3945814" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacteria ; Female ; Hemolymph/microbiology ; Hymenoptera/*microbiology ; Male ; Ovum/microbiology ; Sex Factors ; Wasps/*microbiology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 80
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    Alterations of myc, myb, and rasHa proto-oncogenes in cancers are frequent and show clinical correlation (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-01-17
    Description: Alterations of c-myc, c-rasHa, or c-myb oncogenes were found in more than one-third of human solid tumors. Amplification of c-myc occurred in advanced, widespread tumors or in aggressive primary tumors. Apparent allelic deletions of c-rasHa and c-myb can be correlated with progression and metastasis of carcinomas and sarcomas.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yokota, J -- Tsunetsugu-Yokota, Y -- Battifora, H -- Le Fevre, C -- Cline, M J -- CA15619/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1986 Jan 17;231(4735):261-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3941898" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Child ; DNA, Neoplasm/genetics/isolation & purification ; Female ; Humans ; Leukemia/genetics ; Male ; Middle Aged ; Neoplasms/*genetics ; Oncogenes ; Phenotype ; Polymorphism, Genetic ; *Proto-Oncogenes ; Sarcoma/genetics ; Transcription, Genetic
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 81
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    Orchestrating the sperm-egg summit (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-03-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barnes, D M -- New York, N.Y. -- Science. 1988 Mar 4;239(4844):1091-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2449731" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Egg Proteins ; Female ; Glycoproteins/genetics/physiology ; Humans ; *Interferon Type I ; Interferons ; Male ; *Membrane Glycoproteins ; Pregnancy Proteins/physiology ; *Receptors, Cell Surface ; *Sperm-Ovum Interactions ; Testicular Hormones/physiology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 82
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    Article embroils JAMA in ethical controversy (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-03-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bloom, M -- New York, N.Y. -- Science. 1988 Mar 11;239(4845):1235-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3344431" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; American Medical Association ; *Editorial Policies ; Ethicists ; *Ethics, Medical ; *Euthanasia ; *Euthanasia, Active ; Euthanasia, Active, Voluntary ; Female ; Humans ; Morphine ; Ovarian Neoplasms/physiopathology ; Pain, Intractable/physiopathology ; *Periodicals as Topic ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 83
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    Movement of the X chromosome in epilepsy (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-12-23
    Description: The position of selected chromosomes was assessed in samples of normal and epileptic human cortex with biotinylated probes specific for individual chromosome domains. Optical sectioning provided a rapid method for three-dimensional resolution of in situ hybridization signals in interphase cells, and solid models were reconstructed from digitized images for detailed rotational studies. There was a dramatic repositioning of the X chromosome in neurons of both males and females in electrophysiologically defined seizure foci. Other chromosomes (1, 9, and Y) showed more subtle positional changes. Specifically altered nuclear patterns involving the X chromosome may become established and create the genetic memory for intractable seizure activity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Borden, J -- Manuelidis, L -- CA15044/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1988 Dec 23;242(4886):1687-91.〈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/3201257" target="_blank"〉PubMed〈/a〉
    Keywords: Astrocytes/ultrastructure ; Cell Nucleolus/ultrastructure ; Cell Nucleus/ultrastructure ; Cerebral Cortex/ultrastructure ; DNA Probes ; Epilepsy/*genetics/physiopathology ; Female ; Humans ; Image Processing, Computer-Assisted ; Male ; Microscopy, Electron ; Neurons/ultrastructure ; Nuclear Envelope/ultrastructure ; Nucleic Acid Hybridization ; *X Chromosome
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 84
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    Mammalian ZFY sequences exist in reptiles regardless of sex-determining mechanism (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-10-28
    Description: In some reptiles, egg incubation temperature determines whether the embryo hatches as male or female; in others, sex chromosomes determine sex. A cloned gene (ZFY) representing the putative testis-determining factor in mammals was hybridized to genomic DNA of reptiles with sex chromosomes and to DNA of reptiles with temperature-dependent sex determination. No sex differences in hybridization patterns were observed. Hybridization of ZFY to polyadenylated RNA indicates that reptilian versions of this gene are expressed in embryos of both sexes during the temperature-sensitive period. If these highly conserved sequences are important in reptilian sex determination, then temperature-dependent and genotypic sex determination may have a similar molecular basis. For reptiles with XX/XY or ZZ/ZW systems, the absence of sex differences in hybridization patterns raises the question of whether the ZFY sequences reside on their sex chromosomes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bull, J J -- Hillis, D M -- O'Steen, S -- New York, N.Y. -- Science. 1988 Oct 28;242(4878):567-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Zoology, University of Texas, Austin 78712.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3140382" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Birds/*genetics ; Blotting, Southern ; DNA Probes ; DNA-Binding Proteins/*genetics ; Female ; Gonadal Steroid Hormones/*genetics ; Male ; Metalloproteins/*genetics ; Reptiles/*physiology ; *Sex Determination Analysis ; Temperature
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    Artificial insemination report prompts call for regulation (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-08-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Byrne, G -- New York, N.Y. -- Science. 1988 Aug 19;241(4868):895.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3406745" target="_blank"〉PubMed〈/a〉
    Keywords: Female ; Humans ; *Insemination, Artificial ; Male ; Sperm Banks/*legislation & jurisprudence/standards ; Tissue Banks/*legislation & jurisprudence ; United States
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  • 86
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    Pathogenesis of dengue: challenges to molecular biology (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-01-29
    Description: Dengue viruses occur as four antigenically related but distinct serotypes transmitted to humans by Aedes aegypti mosquitoes. These viruses generally cause a benign syndrome, dengue fever, in the American and African tropics, and a severe syndrome, dengue hemorrhagic fever/dengue shock syndrome (DHF/DSS), in Southeast Asian children. This severe syndrome, which recently has also been identified in children infected with the virus in Puerto Rico, is characterized by increased vascular permeability and abnormal hemostasis. It occurs in infants less than 1 year of age born to dengue-immune mothers and in children 1 year and older who are immune to one serotype of dengue virus and are experiencing infection with a second serotype. Dengue viruses replicate in cells of mononuclear phagocyte lineage, and subneutralizing concentrations of dengue antibody enhance dengue virus infection in these cells. This antibody-dependent enhancement of infection regulates dengue disease in human beings, although disease severity may also be controlled genetically, possibly by permitting and restricting the growth of virus in monocytes. Monoclonal antibodies show heterogeneous distribution of antigenic epitopes on dengue viruses. These epitopes serve to regulate disease: when antibodies to shared antigens partially neutralize heterotypic virus, infection and disease are dampened; enhancing antibodies alone result in heightened disease response. Further knowledge of the structure of dengue genomes should permit rapid advances in understanding the pathogenetic mechanisms of dengue.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Halstead, S B -- New York, N.Y. -- Science. 1988 Jan 29;239(4839):476-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Health Sciences, Rockefeller Foundation, New York, NY 10036.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3277268" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Antibodies, Viral/physiology ; Antigens, Viral/immunology ; Asia, Southeastern ; Child ; Child, Preschool ; Cuba ; Dengue/epidemiology/ethnology/*etiology/immunology/microbiology/prevention & ; control ; *Dengue Virus/classification/genetics/immunology/physiology ; Female ; Humans ; Infant ; Male ; Puerto Rico ; Serotyping
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  • 87
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    Spontaneous impulse activity of rat retinal ganglion cells in prenatal life (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-10-07
    Description: The existence of spontaneous neural activity in mammalian retinal ganglion cells during prenatal life has long been suspected. This activity could play a key role in the refinement of retinal projections during development. Recordings in vivo from the retinas of rat fetuses between embryonic day 17 and 21 found action potentials in spontaneously active ganglion cells at all the ages studied.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Galli, L -- Maffei, L -- New York, N.Y. -- Science. 1988 Oct 7;242(4875):90-1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Istituto di Neurofisiologia Consiglio Nazionale Delle Richerche via San Zeno, Pisa, Italy.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3175637" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Electric Conductivity ; Female ; Fetus/physiology ; Pregnancy ; Rats ; Retina/*embryology/*physiology ; Retinal Ganglion Cells/*physiology
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  • 88
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    AIDS in Africa (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-01-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Linke, U -- New York, N.Y. -- Science. 1986 Jan 17;231(4735):203.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3941894" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/epidemiology/*transmission ; Circumcision, Male ; Female ; Humans ; Male ; Sexual Behavior
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 89
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    Virus-associated cancers can be a major problem in the tropics (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-02-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1986 Feb 28;231(4741):919.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3945813" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; China ; Female ; Humans ; Neoplasms/*microbiology ; *Tropical Medicine
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  • 90
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    Federal VDT study finally wins approval (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-06-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sun, M -- New York, N.Y. -- Science. 1986 Jun 27;232(4758):1594-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3715463" target="_blank"〉PubMed〈/a〉
    Keywords: *Data Display ; Female ; Humans ; National Institute for Occupational Safety and Health (U.S.) ; Pregnancy ; United States
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  • 91
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    Bioavailability of dioxin in soil from a 2,4,5-T manufacturing site (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-04-25
    Description: Dioxin (2,3,7,8-tetrachlorodibenzo-p-dioxin, TCDD) is a highly toxic contaminant produced in the manufacture of phenoxy herbicides. Despite its high TCDD content, soil from a contaminated area associated with a 2,4,5-trichlorophenoxyacetic acid (2,4,5-T) manufacturing site in Newark, New Jersey, did not induce acute toxicity when administered to guinea pigs (the most sensitive species) by gavage. Analysis of liver samples demonstrated low bioavailability of TCDD from this soil. A comparative analysis of soils showed that Soxhlet extraction was necessary for the determination of TCDD on Newark soil, whereas solvent extraction was sufficient for soil from Times Beach, Missouri. The difference in the bioavailability of TCDD from these soils is correlated with TCDD extractability and may be related to the different compositions of the soils.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Umbreit, T H -- Hesse, E J -- Gallo, M A -- New York, N.Y. -- Science. 1986 Apr 25;232(4749):497-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3961492" target="_blank"〉PubMed〈/a〉
    Keywords: 2,4,5-Trichlorophenoxyacetic Acid/*chemical synthesis ; Animals ; Benzofurans/analysis ; Biological Availability ; *Chemical Industry ; Dioxins/analysis/*metabolism ; Female ; Guinea Pigs ; Male ; New Jersey ; Soil/analysis ; *Soil Pollutants/analysis ; Tetrachlorodibenzodioxin/analysis/*metabolism/toxicity
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  • 92
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    Child care dilemma (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-02-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1988 Feb 5;239(4840):545.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3340838" target="_blank"〉PubMed〈/a〉
    Keywords: Child ; *Child Care ; Female ; Humans ; *Science ; United States ; *Women ; *Women, Working
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  • 93
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    ACTH regulation and IL-1 (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-03-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arimura, A -- New York, N.Y. -- Science. 1988 Mar 11;239(4845):1313.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2830676" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenocorticotropic Hormone/*secretion ; Animals ; Female ; Interleukin-1/*pharmacology ; Male ; Pituitary Gland, Anterior/drug effects/*secretion ; Rats
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  • 94
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    AIDS vaccine trial expanded (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-01-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barnes, D M -- New York, N.Y. -- Science. 1988 Jan 29;239(4839):457.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3277266" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*prevention & control ; Clinical Trials as Topic ; Female ; Humans ; Male ; United States ; *Viral Vaccines
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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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    Sex hormones linked to task performance (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-12-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barnes, D M -- New York, N.Y. -- Science. 1988 Dec 16;242(4885):1509.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3201238" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Estrogens/*physiology ; Female ; Humans ; Menstrual Cycle ; Progesterone/*physiology ; *Task Performance and Analysis
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 96
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    BEIR IV report (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-09-02
    Description: In the Research News article by Richard A. Kerr "In search of elusive little comets" (10 June, p. 1403), the position held by John Craven of the University of Iowa was incorrectly given. He is a senior research physicist.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ellett, W H -- New York, N.Y. -- Science. 1988 Sep 2;241(4870):1144.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3413478" target="_blank"〉PubMed〈/a〉
    Keywords: Age Factors ; Female ; Humans ; Lung Neoplasms/*etiology ; Male ; Neoplasms, Radiation-Induced/*etiology ; Radon/*adverse effects ; Risk Factors ; Smoking/*adverse effects
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  • 97
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    Induction of B cell unresponsiveness to noninherited maternal HLA antigens during fetal life (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-09-30
    Description: Patients who have received many transfusions become highly sensitized and develop antibodies against almost all HLA alloantigens, so that finding a cross-match negative kidney donor is difficult. A survey of those patients showed that 50 percent did not form antibodies against the noninherited maternal HLA antigens. Apart from the obvious clinical implications, the data indicate that a human equivalent of murine neonatal or actively acquired tolerance has now been identified.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Claas, F H -- Gijbels, Y -- van der Velden-de Munck, J -- van Rood, J J -- New York, N.Y. -- Science. 1988 Sep 30;241(4874):1815-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunohaematology, University Hospital, Leiden, the Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3051377" target="_blank"〉PubMed〈/a〉
    Keywords: B-Lymphocytes/*immunology ; Female ; Fetus/*immunology ; HLA-A Antigens/*immunology ; HLA-B Antigens/*immunology ; Humans ; *Immune Tolerance ; *Kidney Transplantation ; Maternal-Fetal Exchange ; Pregnancy
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 98
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    Estrogen-dependent in vitro transcription from the vitellogenin promoter in liver nuclear extracts (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-03-04
    Description: One approach to analyzing the molecular mechanisms of gene expression in vivo is to reconstitute these events in cell-free systems in vitro. Although there is some evidence for tissue-specific transcription in vitro, transcriptionally active extracts that mimic a steroid hormone-dependent enhancement of transcription have not been described. In the study reported here, nuclear extracts of liver from the frog Xenopus laevis were capable of estrogen-dependent induction of a homologous vitellogenin promoter that contained the estrogen-responsive element.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Corthesy, B -- Hipskind, R -- Theulaz, I -- Wahli, W -- New York, N.Y. -- Science. 1988 Mar 4;239(4844):1137-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut de Biologie animale, Universite de Lausanne, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2830672" target="_blank"〉PubMed〈/a〉
    Keywords: Acetyltransferases/genetics ; Animals ; Cell Nucleus/*metabolism ; Chloramphenicol O-Acetyltransferase ; DNA, Recombinant ; Estradiol/*pharmacology ; Female ; HeLa Cells/metabolism ; Humans ; Liver/*ultrastructure ; Male ; *Promoter Regions, Genetic ; RNA Polymerase II/metabolism ; Simian virus 40/genetics ; Templates, Genetic ; Transcription, Genetic/*drug effects ; Vitellogenins/*genetics ; Xenopus laevis
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 99
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    Family planning: a growing gap (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-10-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1988 Oct 21;242(4877):370-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3175659" target="_blank"〉PubMed〈/a〉
    Keywords: Abortion, Spontaneous ; Contraception/*methods ; Contraceptive Agents ; Contraceptive Devices ; *Family Planning Services ; Female ; Humans ; Pregnancy ; Pregnancy, Unwanted ; Research Support as Topic ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 100
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    Overexpression of low density lipoprotein (LDL) receptor eliminates LDL from plasma in transgenic mice (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-03-11
    Description: A complementary DNA encoding the human low density lipoprotein (LDL) receptor under control of the mouse metallothionein-I promoter was injected into fertilized mouse eggs, and a strain of mice expressing high levels of LDL receptors was established. After administration of cadmium, these mice cleared intravenously injected 125I-labeled LDL from blood eight to ten times more rapidly than did normal mice. The plasma concentrations of apoproteins B-100 and E, the two ligands for the LDL receptor, declined by more than 90 percent after cadmium treatment, but the concentration of another apoprotein, A-I, was unaffected. Therefore, overexpression of an endocytotic receptor can dramatically lower the ambient concentration of its ligand in vivo.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hofmann, S L -- Russell, D W -- Brown, M S -- Goldstein, J L -- Hammer, R E -- HL 01287/HL/NHLBI NIH HHS/ -- HL 20948/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1988 Mar 11;239(4845):1277-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics, 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/3344433" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cloning, Molecular ; DNA/genetics ; Female ; *Genes ; Humans ; Kinetics ; Lipoproteins, LDL/*blood ; Mice ; Mice, Transgenic ; Plasmids ; Receptors, LDL/*genetics/metabolism ; Reference Values ; Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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