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  • Female  (98)
  • American Association for the Advancement of Science (AAAS)  (95)
  • Springer  (3)
  • American Institute of Physics (AIP)
  • 1990-1994  (98)
  • 1975-1979
  • 1960-1964
  • 1992  (98)
Collection
Publisher
  • American Association for the Advancement of Science (AAAS)  (95)
  • Springer  (3)
  • American Institute of Physics (AIP)
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  • 1990-1994  (98)
  • 1975-1979
  • 1960-1964
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  • 1
    Publication Date: 1992-07-03
    Description: Osteoclasts, the cells that resorb bone, develop from hematopoietic precursors of the bone marrow under the control of factors produced in their microenvironment. The cytokine interleukin-6 can promote hematopoiesis and osteoclastogenesis. Interleukin-6 production by bone and marrow stromal cells is suppressed by 17 beta-estradiol in vitro. In mice, estrogen loss (ovariectomy) increased the number of colony-forming units for granulocytes and macrophages, enhanced osteoclast development in ex vivo cultures of marrow, and increased the number of osteoclasts in trabecular bone. These changes were prevented by 17 beta-estradiol or an antibody to interleukin-6. Thus, estrogen loss results in an interleukin-6-mediated stimulation of osteoclastogenesis, which suggests a mechanism for the increased bone resorption in postmenopausal osteoporosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jilka, R L -- Hangoc, G -- Girasole, G -- Passeri, G -- Williams, D C -- Abrams, J S -- Boyce, B -- Broxmeyer, H -- Manolagas, S C -- AI21761/AI/NIAID NIH HHS/ -- AR41313/AR/NIAMS NIH HHS/ -- CA36464/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1992 Jul 3;257(5066):88-91.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Veterans Affairs Medical Center, Indiana University School of Medicine, Indianapolis 46202.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1621100" target="_blank"〉PubMed〈/a〉
    Keywords: Analysis of Variance ; Animals ; Antibodies, Monoclonal ; Bone Marrow Cells ; Cells, Cultured ; Estradiol/*pharmacology ; Female ; Granulocyte-Macrophage Colony-Stimulating Factor/pharmacology ; Immunoglobulin G ; Interleukin-6/immunology/*physiology ; Mice ; Osteoclasts/*cytology/drug effects ; *Ovariectomy ; Recombinant Proteins/pharmacology ; Spleen/cytology ; Stem Cells/cytology/drug effects
    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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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-04-10
    Description: A cell-free system has been developed that executes centriole duplication. Surf clam (Spisula solidissima) oocytes, arrested at late prophase of meiosis I, do not contain centrioles, centrosomes, or asters. Serial section high-voltage electron microscopy (HVEM) of asters and spindles isolated from potassium chloride-activated oocytes indicates that within 4 minutes oocytes assemble a single centriole that is duplicated by 15 minutes when assembly of the first meiotic spindle is complete. A mixture of lysates from unactivated oocytes and potassium chloride-activated oocytes induces centriole formation and duplication. Astral microtubule content in these lysate mixtures increases with time.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palazzo, R E -- Vaisberg, E -- Cole, R W -- Rieder, C L -- R01-40198/PHS HHS/ -- R01-43264/PHS HHS/ -- RR 01219/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1992 Apr 10;256(5054):219-21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Marine Biological Laboratory, Woods Hole, MA 02543.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1566068" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bivalvia ; Cell-Free System ; Centrioles/*ultrastructure ; Female ; Meiosis ; Microscopy, Electron ; Oocytes/cytology/*ultrastructure ; Prophase ; Tubulin/analysis
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  • 3
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-08-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palca, J -- New York, N.Y. -- Science. 1992 Aug 7;257(5071):739.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1496391" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; *Crime ; Female ; *Genetics, Medical ; Humans ; Male ; *National Institutes of Health (U.S.) ; *Research Support as Topic ; United States ; United States Dept. of Health and Human Services ; *Violence
    Print ISSN: 0036-8075
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  • 4
    Publication Date: 1992-05-22
    Description: Human immunodeficiency virus type 1 (HIV-1) transmission from infected patients to health-care workers has been well documented, but transmission from an infected health-care worker to a patient has not been reported. After identification of an acquired immunodeficiency syndrome (AIDS) patient who had no known risk factors for HIV infection but who had undergone an invasive procedure performed by a dentist with AIDS, six other patients of this dentist were found to be HIV-infected. Molecular biologic studies were conducted to complement the epidemiologic investigation. Portions of the HIV proviral envelope gene from each of the seven patients, the dentist, and 35 HIV-infected persons from the local geographic area were amplified by polymerase chain reaction and sequenced. Three separate comparative genetic analyses--genetic distance measurements, phylogenetic tree analysis, and amino acid signature pattern analysis--showed that the viruses from the dentist and five dental patients were closely related. These data, together with the epidemiologic investigation, indicated that these patients became infected with HIV while receiving care from a dentist with AIDS.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ou, C Y -- Ciesielski, C A -- Myers, G -- Bandea, C I -- Luo, C C -- Korber, B T -- Mullins, J I -- Schochetman, G -- Berkelman, R L -- Economou, A N -- New York, N.Y. -- Science. 1992 May 22;256(5060):1165-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of HIV/AIDS, Centers for Disease Control, Atlanta, GA 30333.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1589796" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/blood/microbiology/*transmission ; Amino Acid Sequence ; Base Sequence ; DNA, Viral/blood/genetics/isolation & purification ; *Dentistry ; Female ; Florida ; Genetic Variation ; HIV Infections/microbiology/*transmission ; HIV-1/*genetics/isolation & purification ; Humans ; Male ; Molecular Sequence Data ; Monocytes/physiology ; Oligodeoxyribonucleotides ; *Patients ; Phylogeny ; Sequence Homology, Nucleic Acid ; Viral Envelope Proteins/*genetics
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  • 5
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-09-07
    Description: Oncogenic viruses demonstrating a strict tropism for the mammary gland provide special opportunities to study the susceptibility of this tissue to neoplasia. In rats, human adenovirus type 9 (Ad9) elicits mammary fibroadenomas that are similar to common breast tumors in women, as well as phyllodes-like tumors and mammary sarcomas. By constructing recombinant adenoviruses between Ad9 and Ad26 (a related nontumorigenic virus), it was shown that the Ad9 E4 region was absolutely required to produce these mammary tumors. This indicates that an adenovirus gene located outside the classic transforming region (E1) can significantly influence the in vivo oncogenicity of an adenovirus. Consistent with a direct role in mammary gland oncogenesis, the Ad9 E4 region also exhibited transforming properties in vitro. Therefore, the Ad9 E4 region is a viral oncogene specifically involved in mammary gland tumorigenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Javier, R -- Raska, K Jr -- Shenk, T -- CA 21196/CA/NCI NIH HHS/ -- CA 41086/CA/NCI NIH HHS/ -- T32 CA09528/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1992 Aug 28;257(5074):1267-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Molecular Biology, Princeton University, NJ 08544.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1519063" target="_blank"〉PubMed〈/a〉
    Keywords: Adenoviridae/genetics/*pathogenicity ; Amino Acid Sequence ; Animals ; Cell Transformation, Neoplastic/*genetics ; Chromosome Mapping ; Female ; Mammary Neoplasms, Experimental/*genetics/*microbiology ; Molecular Sequence Data ; Open Reading Frames/genetics ; Rats ; Rats, Inbred WF ; Sequence Homology, Nucleic Acid
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  • 6
    Publication Date: 1992-04-03
    Description: Colorectal (CR) tumors are usually curable if detected before metastasis. Because genetic alterations are associated with the development of these tumors, mutant genes may be found in the stool of individuals with CR neoplasms. The stools of nine patients whose tumors contained mutations of K-ras were analyzed. In eight of the nine cases, the ras mutations were detectable in DNA purified from the stool. These patients included those with benign and malignant neoplasms from proximal and distal colonic epithelium. Thus, colorectal tumors can be detected by a noninvasive method based on the molecular pathogenesis of the disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sidransky, D -- Tokino, T -- Hamilton, S R -- Kinzler, K W -- Levin, B -- Frost, P -- Vogelstein, B -- CA06973/CA/NCI NIH HHS/ -- CA35494/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1992 Apr 3;256(5053):102-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Oncology, Johns Hopkins University, Baltimore, MD 21231.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1566048" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; Amino Acid Sequence ; Base Sequence ; Blotting, Southern ; Carcinoma/diagnosis/*genetics/pathology ; Colonic Neoplasms/diagnosis/*genetics/pathology ; DNA, Neoplasm/genetics/*isolation & purification ; Feces/chemistry ; Female ; *Genes, ras ; Humans ; Male ; Middle Aged ; Molecular Sequence Data ; *Mutation ; Oligodeoxyribonucleotides ; Polymerase Chain Reaction ; Prognosis ; Rectal Neoplasms/diagnosis/*genetics/pathology
    Print ISSN: 0036-8075
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  • 7
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-04-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palca, J -- New York, N.Y. -- Science. 1992 Apr 3;256(5053):24.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1566053" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Child ; Female ; *Health Promotion ; Humans ; Infant ; Infant Mortality ; Male ; Middle Aged ; *Minority Groups ; National Institutes of Health (U.S.) ; *Research Support as Topic ; United States
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  • 8
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-05-08
    Description: After giving birth, sheep and many other species form a selective bond with their offspring based on the sense of smell. Processing of olfactory signals is altered to allow the animals to perform this selective recognition. Lamb odors have little effect on either neurotransmitter release or electrical activity of neurons in the olfactory bulb before birth. However, after birth there is an increase in the number of mitral cells, the principal cells of the olfactory bulb, that respond to lamb odors, which is associated with increased cholinergic and noradrenergic neurotransmitter release. Selective recognition of lambs is accompanied by increased activity of a subset of mitral cells and release of glutamate and gamma-aminobutyric acid (GABA) from the dendrodendritic synapses between the mitral and granule cells. The relation between the release of each transmitter after birth also suggests an increased efficacy of glutamate-evoked GABA release.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kendrick, K M -- Levy, F -- Keverne, E B -- New York, N.Y. -- Science. 1992 May 8;256(5058):833-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Agricultural and Food Research Council, Institute of Animal Physiology and Genetics Research, Babraham, Cambridge, United Kingdom.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1589766" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Newborn ; Female ; Glutamates/secretion ; Labor, Obstetric ; *Maternal Behavior ; Models, Neurological ; Neurons/physiology ; Odors ; Olfactory Bulb/*physiology ; Olfactory Nerve/physiology ; Pregnancy ; Regression Analysis ; Sheep ; *Smell ; Time Factors ; gamma-Aminobutyric Acid/secretion
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  • 9
    Publication Date: 1992-02-28
    Description: Multiple human immunodeficiency virus type-1 sequences from the V3 and V4-V5 regions of the envelope gene were analyzed from three mother-infant pairs. The infants' viral sequences were less diverse than those of their mothers. In two pairs, a proviral form infrequently found in the mother predominated in her infant. A conserved N-linked glycosylation site within the V3 region, present in each mother's sequence set, was absent in all of the infants' sequence sets. These findings demonstrate that a minor subset of maternal virus is transmitted to the infant.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wolinsky, S M -- Wike, C M -- Korber, B T -- Hutto, C -- Parks, W P -- Rosenblum, L L -- Kunstman, K J -- Furtado, M R -- Munoz, J L -- AI-32535/AI/NIAID NIH HHS/ -- HD26619-01/HD/NICHD NIH HHS/ -- P01-25569/PHS HHS/ -- New York, N.Y. -- Science. 1992 Feb 28;255(5048):1134-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Northwestern University Medical School, Chicago, IL 60611.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1546316" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/congenital/microbiology/*transmission ; Amino Acid Sequence ; Base Sequence ; Female ; Genotype ; Glycosylation ; HIV Antigens/genetics ; HIV Envelope Protein gp120/genetics/immunology ; HIV-1/*genetics/immunology ; Humans ; Infant ; Maternal-Fetal Exchange ; Molecular Sequence Data ; Oligodeoxyribonucleotides/chemistry ; Polymerase Chain Reaction ; Pregnancy ; Selection, Genetic ; Sequence Alignment
    Print ISSN: 0036-8075
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  • 10
    Publication Date: 1992-11-27
    Description: The cystic fibrosis gene product (CFTR) is a complex protein that functions as an adenosine 3,5-monophosphate (cAMP)-stimulated ion channel and possibly as a regulator of intracellular processes. In order to determine whether the CFTR molecule contains a functional aqueous pathway, anion, water, and urea transport were measured in Xenopus oocytes expressing CFTR. Cyclic AMP agonists induced a Cl- conductance of 94 microsiemens and an increase in water permeability of 4 x 10(-4) centimeter per second that was inhibited by a Cl- channel blocker and was dependent on anion composition. CFTR has a calculated single channel water conductance of 9 x 10(-13) cubic centimeter per second, suggesting a pore-like aqueous pathway. Oocytes expressing CFTR also showed cAMP-stimulated transport of urea but not the larger solute sucrose. Thus CFTR contains a cAMP-stimulated aqueous pore that can transport anions, water, and small solutes. The results also provide functional evidence for water movement through an ion channel.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hasegawa, H -- Skach, W -- Baker, O -- Calayag, M C -- Lingappa, V -- Verkman, A S -- DK35124/DK/NIDDK NIH HHS/ -- DK43840/DK/NIDDK NIH HHS/ -- HL42368/HL/NHLBI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1992 Nov 27;258(5087):1477-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of California, San Francisco 94143-0532.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1279809" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Biological Transport/physiology ; Chlorides/metabolism ; Cyclic AMP/physiology ; Cystic Fibrosis Transmembrane Conductance Regulator ; Female ; Humans ; In Vitro Techniques ; Ion Channels/*physiology ; Membrane Proteins/*physiology ; Molecular Sequence Data ; Oocytes ; Urea/metabolism ; Water/metabolism ; Xenopus
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  • 11
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-05-18
    Description: Triplet repeats are the sites of mutation in three human heritable disorders, spinal and bulbar muscular atrophy (SBMA), fragile X syndrome, and myotonic dystrophy (DM). These repeats are GC-rich and highly polymorphic in the normal population. Fragile X syndrome and DM are examples of diseases in which premutation alleles cause little or no disease in the individual, but give rise to significantly amplified repeats in affected progeny. This newly identified mechanism of mutation has, so far, been identified in two of the most common heritable disorders, fragile X syndrome and DM, and one rare disease, SBMA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Caskey, C T -- Pizzuti, A -- Fu, Y H -- Fenwick, R G Jr -- Nelson, D L -- 1R01HD29256/HD/NICHD NIH HHS/ -- P30-HG00210/HG/NHGRI NIH HHS/ -- P30HD24064/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1992 May 8;256(5058):784-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Molecular Genetics, Baylor College of Medicine, Houston, TX 77030.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1589758" target="_blank"〉PubMed〈/a〉
    Keywords: Female ; Fragile X Syndrome/*genetics/physiopathology ; Genetic Diseases, Inborn/*genetics/physiopathology ; Humans ; Male ; Muscular Atrophy, Spinal/*genetics/physiopathology ; *Mutation ; Myotonic Dystrophy/*genetics/physiopathology ; Pedigree ; Repetitive Sequences, Nucleic Acid
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  • 12
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-03-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Healy, B -- New York, N.Y. -- Science. 1992 Mar 13;255(5050):1333.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1542782" target="_blank"〉PubMed〈/a〉
    Keywords: Female ; Humans ; Research Personnel/*statistics & numerical data ; Science/*manpower ; United States ; Women, Working/*statistics & numerical data
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  • 13
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-06-05
    Description: When selection differs between the sexes, a mutation beneficial to one sex may be harmful to the other (sexually antagonistic). Because the sexes share a common gene pool, selection in one sex can interfere with the other's adaptive evolution. Theory predicts that sexually antagonistic mutations should accumulate in tight linkage with a new sex-determining gene, even when the harm to benefit ratio is high. Genetic markers and artificial selection were used to make a pair of autosomal genes segregate like a new pair of sex-determining genes in a Drosophila melanogaster model system. A 29-generation study provides experimental evidence that sexually antagonistic genes may be common in nature and will accumulate in response to a new sex-determining gene.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rice, W R -- New York, N.Y. -- Science. 1992 Jun 5;256(5062):1436-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biology Board of Studies, University of California, Santa Cruz 95064.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1604317" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Drosophila melanogaster/*genetics ; Eye Color/genetics ; Female ; *Genes ; Male ; Phenotype ; *Recombination, Genetic ; *Selection, Genetic ; *Sex Ratio
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  • 14
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-05-08
    Description: Human gene therapy is a procedure that is being used in an attempt to treat genetic and other diseases. Eleven clinical protocols are under way at the present time, each with scientific and clinical objectives. Human genetic engineering raises unique safety, social, and ethical concerns.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Anderson, W F -- New York, N.Y. -- Science. 1992 May 8;256(5058):808-13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Hematology Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1589762" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Deaminase/deficiency/*genetics ; Bioethics ; Clinical Trials as Topic ; Federal Government ; Female ; Genetic Diseases, Inborn ; Genetic Engineering ; *Genetic Therapy ; Government Regulation ; Humans ; Male ; Neoplasms/genetics/therapy ; Risk Assessment ; Safety ; Social Responsibility
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  • 15
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-09-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palca, J -- New York, N.Y. -- Science. 1992 Sep 25;257(5078):1857.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1301026" target="_blank"〉PubMed〈/a〉
    Keywords: Diet ; Female ; *Folic Acid ; Humans ; Neural Tube Defects/prevention & control ; Pregnancy
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  • 16
    Publication Date: 1992-03-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jucker, M -- Walker, L C -- Martin, L J -- Kitt, C A -- Kleinman, H K -- Ingram, D K -- Price, D L -- New York, N.Y. -- Science. 1992 Mar 13;255(5050):1443-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1542796" target="_blank"〉PubMed〈/a〉
    Keywords: Aging/*metabolism ; Amyloid beta-Peptides/*metabolism ; Animals ; Brain/*metabolism ; Female ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic/*metabolism
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  • 17
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-10-02
    Description: A unified genetic, physical, and functional map of the human X chromosome is being built through a concerted, international effort. About 40 percent of the 160 million base pairs of the X chromosome DNA have been cloned in overlapping, ordered contigs derived from yeast artificial chromosomes. This rapid progress toward a physical map is accelerating the identification of inherited disease genes, 26 of which are already cloned and more than 50 others regionally localized by linkage analysis. This article summarizes the mapping strategies now used and the impact of genome research on the understanding of X chromosome inactivation and X-linked diseases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mandel, J L -- Monaco, A P -- Nelson, D L -- Schlessinger, D -- Willard, H -- New York, N.Y. -- Science. 1992 Oct 2;258(5079):103-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratoire de Genetique Moleculaire des Eucaryotes du CNRS, INSERM, Strasbourg, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1439756" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Chromosome Mapping ; Dosage Compensation, Genetic ; Female ; *Genome, Human ; Humans ; Macropodidae ; Male ; Mice ; Mutation ; Sex Chromosome Aberrations ; *X Chromosome
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    Publication Date: 1992-10-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mandel, J L -- Monaco, A P -- Nelson, D L -- Schlessinger, D -- Willard, H F -- Chipperfield, M -- Pearson, P -- Gilna, P -- Cinkosky, M -- New York, N.Y. -- Science. 1992 Oct 2;258(5079):87-102.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉INSERM, Strasbourg, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1439771" target="_blank"〉PubMed〈/a〉
    Keywords: *Chromosome Mapping ; Chromosomes, Human ; Female ; Genetic Linkage ; Genetic Markers ; *Genome, Human ; Humans ; Sex Chromosome Aberrations ; X Chromosome
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-10-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1992 Oct 30;258(5083):732, 734.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1439774" target="_blank"〉PubMed〈/a〉
    Keywords: *Biomedical Research ; *Breast Neoplasms ; *Federal Government ; Female ; Financing, Government/*economics ; Humans ; Lobbying ; National Institutes of Health (U.S.) ; Research Support as Topic/*economics ; Resource Allocation ; United States
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-04-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palca, J -- New York, N.Y. -- Science. 1992 Apr 10;256(5054):172-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1566065" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*transmission ; Female ; *Fetal Tissue Transplantation ; Government Agencies ; Humans ; Male ; National Institutes of Health (U.S.) ; Research Support as Topic/*legislation & jurisprudence ; Sexual Behavior ; United States
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  • 21
    Publication Date: 1992-10-30
    Description: Comparative genomic hybridization produces a map of DNA sequence copy number as a function of chromosomal location throughout the entire genome. Differentially labeled test DNA and normal reference DNA are hybridized simultaneously to normal chromosome spreads. The hybridization is detected with two different fluorochromes. Regions of gain or loss of DNA sequences, such as deletions, duplications, or amplifications, are seen as changes in the ratio of the intensities of the two fluorochromes along the target chromosomes. Analysis of tumor cell lines and primary bladder tumors identified 16 different regions of amplification, many in loci not previously known to be amplified.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kallioniemi, A -- Kallioniemi, O P -- Sudar, D -- Rutovitz, D -- Gray, J W -- Waldman, F -- Pinkel, D -- CA 44768/CA/NCI NIH HHS/ -- CA 45919/CA/NCI NIH HHS/ -- CA 47537/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1992 Oct 30;258(5083):818-21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Laboratory Medicine, University of California, San Francisco 94143.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1359641" target="_blank"〉PubMed〈/a〉
    Keywords: Chromosome Mapping ; DNA Probes ; DNA, Neoplasm/*genetics ; Female ; Fluorescein-5-isothiocyanate ; Fluorescent Dyes ; Gene Amplification ; Gene Deletion ; Humans ; In Situ Hybridization, Fluorescence ; Male ; Mutation ; Neoplasms/*genetics ; *Nucleic Acid Hybridization ; Oncogenes ; Polymorphism, Restriction Fragment Length ; Rhodamines ; Tumor Cells, Cultured
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  • 22
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-01-24
    Description: During development, the genotype of the zygote determines the nature of the gonad, which then determines the male or female phenotype. The molecular events underlying this process are just beginning to be defined. A single treatment of chicken embryos with an aromatase inhibitor (which blocks the synthesis of estrogen from testosterone) at a stage when their gonads were bipotential caused genetic females to develop a permanent male phenotype. These sex-reversed females developed bilateral testes that were capable of complete spermatogenesis and had the physical appearance and behavior of normal males. This result identifies aromatase as a key developmental switch in the sex determination of chickens.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Elbrecht, A -- Smith, R G -- New York, N.Y. -- Science. 1992 Jan 24;255(5043):467-70.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Animal Biochemistry and Molecular Biology, Merck Sharp and Dohme Research Laboratories, Rahway, NJ 07065.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1734525" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aromatase/*metabolism ; Aromatase Inhibitors ; Chick Embryo ; Chickens/*physiology ; Estradiol/blood/pharmacology ; Female ; Genitalia/embryology ; Male ; Phenotype ; *Sex Determination Analysis ; Spermatogenesis ; Testosterone/blood
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  • 23
    Publication Date: 1992-07-17
    Description: N-type calcium channels are omega-conotoxin (omega-CgTx)-sensitive, voltage-dependent ion channels involved in the control of neurotransmitter release from neurons. Multiple subtypes of voltage-dependent calcium channel complexes exist, and it is the alpha 1 subunit of the complex that forms the pore through which calcium enters the cell. The primary structures of human neuronal calcium channel alpha 1B subunits were deduced by the characterization of overlapping complementary DNAs. Two forms (alpha 1B-1 and alpha 1B-2) were identified in human neuroblastoma (IMR32) cells and in the central nervous system, but not in skeletal muscle or aorta tissues. The alpha 1B-1 subunit directs the recombinant expression of N-type calcium channel activity when it is transiently co-expressed with human neuronal beta 2 and alpha 2b subunits in mammalian HEK293 cells. The recombinant channel was irreversibly blocked by omega-CgTx but was insensitive to dihydropyridines. The alpha 1B-1 alpha 2b beta 2-transfected cells displayed a single class of saturable, high-affinity (dissociation constant = 55 pM) omega-CgTx binding sites. Co-expression of the beta 2 subunit was necessary for N-type channel activity, whereas the alpha 2b subunit appeared to modulate the expression of the channel. The heterogeneity of alpha 1B subunits, along with the heterogeneity of alpha 2 and beta subunits, is consistent with multiple, biophysically distinct N-type calcium channels.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Williams, M E -- Brust, P F -- Feldman, D H -- Patthi, S -- Simerson, S -- Maroufi, A -- McCue, A F -- Velicelebi, G -- Ellis, S B -- Harpold, M M -- New York, N.Y. -- Science. 1992 Jul 17;257(5068):389-95.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉SIBIA, Inc., La Jolla, CA 92037.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1321501" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Calcium/metabolism ; Calcium Channels/*drug effects/*genetics/*metabolism ; Cell Line ; Female ; Humans ; Male ; Membrane Potentials ; Molecular Sequence Data ; Neuroblastoma/metabolism ; Peptides, Cyclic/*pharmacology ; Sequence Alignment ; Sequence Homology, Nucleic Acid ; Transfection ; omega-Conotoxin GVIA
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-05-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Smith, T F -- Waterman, M S -- New York, N.Y. -- Science. 1992 May 22;256(5060):1155-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biomolecular Engineering Research Center, Boston University, MA 02215.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1589795" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/microbiology/*transmission ; DNA, Viral/*genetics ; *Dentistry ; Female ; Florida ; *HIV Seropositivity ; HIV-1/*genetics/isolation & purification ; Humans ; Infant ; *Patients
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-04-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bull, J J -- Molineux, I J -- Werren, J H -- New York, N.Y. -- Science. 1992 Apr 3;256(5053):65.〈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/1566058" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Biological Evolution ; Crosses, Genetic ; Drosophila/*genetics ; Female ; *Genes ; Heterozygote ; Male ; Mice
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  • 26
    Publication Date: 1992-06-05
    Description: Vertebrate T cells express either an alpha beta or gamma delta T cell receptor (TCR). The developmental relatedness of the two cell types is unresolved. alpha beta + T cells respond to specific pathogens by collaborating with immunoglobulin-producing B cells in distinct lymphoid organs such as the spleen and Peyer's patches. The precise influence of alpha beta + T cells on B cell development is poorly understood. To investigate the developmental effects of alpha beta + T cells on B cells and gamma delta + T cells, mice homozygous for a disrupted TCR alpha gene were generated. The homozygotes showed elimination of alpha beta + T cells and the loss of thymic medullae. Despite this, gamma delta + T cells developed in normal numbers, and there was an increase in splenic B cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Philpott, K L -- Viney, J L -- Kay, G -- Rastan, S -- Gardiner, E M -- Chae, S -- Hayday, A C -- Owen, M J -- GM37759/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1992 Jun 5;256(5062):1448-52.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Imperial Cancer Research Fund, London, United Kingdom.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1604321" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/*immunology ; Blastocyst ; Blotting, Southern ; Chimera ; Clone Cells ; DNA/genetics/isolation & purification ; Female ; Lymphoid Tissue/growth & development/*immunology ; Macromolecular Substances ; Male ; Mice ; Mice, Inbred BALB C ; Mice, Mutant Strains ; Peyer's Patches/immunology ; Polymerase Chain Reaction ; Receptors, Antigen, T-Cell/*genetics ; Spleen/immunology ; T-Lymphocytes/*immunology ; Thymus Gland/immunology
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-07-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J -- New York, N.Y. -- Science. 1992 Jul 3;257(5066):22-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1621088" target="_blank"〉PubMed〈/a〉
    Keywords: Amitriptyline/*toxicity ; Animals ; Breast Neoplasms/drug therapy/prevention & control ; Carcinogens/*toxicity ; Female ; Fluoxetine/*toxicity ; Humans ; Mice ; Neoplasms, Experimental/chemically induced ; Rats ; Tamoxifen/therapeutic use ; United States ; United States Food and Drug Administration
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-08-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sonenstein, F L -- New York, N.Y. -- Science. 1992 Aug 14;257(5072):861.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1502545" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/prevention & control ; Adolescent ; Adult ; *Contraceptive Devices, Male ; Female ; Humans ; Male ; Sex Education ; *Sexual Behavior ; United States
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-01-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wolpoff, M H -- New York, N.Y. -- Science. 1992 Jan 10;255(5041):142.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1553537" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Continental Population Groups ; Female ; *Hominidae ; Humans ; Male ; *Paleontology ; Skull/*anatomy & histology
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-07-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Aldhous, P -- New York, N.Y. -- Science. 1992 Jul 10;257(5067):164-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1631543" target="_blank"〉PubMed〈/a〉
    Keywords: Behavior/*physiology ; Child ; Environment ; Female ; Humans ; Intelligence/genetics ; Male ; Mental Disorders/genetics ; *Molecular Biology ; Twins/psychology
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-07-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Aldhous, P -- New York, N.Y. -- Science. 1992 Jul 3;257(5066):25.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1320289" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/prevention & control ; Adult ; Aged ; Centers for Disease Control and Prevention (U.S.) ; Data Collection ; Female ; France ; HIV Infections/prevention & control ; *Homosexuality ; Humans ; Male ; Middle Aged ; *Sexual Behavior ; United States
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-08-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hamilton, D P -- New York, N.Y. -- Science. 1992 Aug 14;257(5072):869.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1502549" target="_blank"〉PubMed〈/a〉
    Keywords: *Aborted Fetus ; Abortion, Induced ; Abortion, Spontaneous ; Costs and Cost Analysis ; Federal Government ; Female ; *Fetal Research ; *Fetal Tissue Transplantation ; Fetus ; Humans ; National Institutes of Health (U.S.) ; Pregnancy ; Pregnancy, Ectopic ; Tissue Banks/economics/*organization & administration ; United States ; United States Dept. of Health and Human Services
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  • 33
    Publication Date: 1992-04-10
    Description: Mesoderm induction and body axis determination in frog (Xenopus) embryos are thought to involve growth factor-mediated cell-cell signaling, but the signal transduction pathways are unknown. Li+, which inhibits the polyphosphoinositide (PI) cycle signal transduction pathway in many cells, also disrupts axis determination and mesoderm induction. Amounts of the PI cycle-derived second messenger, inositol 1,4,5-trisphosphate, increased during mesoderm induction in normal embryos; addition of Li+ inhibited the embryonic inositol monophosphatase and reversed this increase. Embryonic PI cycle activity thus shows characteristics that indicate it may function in mesoderm induction and axis determination.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maslanski, J A -- Leshko, L -- Busa, W B -- HD22879/HD/NICHD NIH HHS/ -- HD27546/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1992 Apr 10;256(5054):243-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Johns Hopkins University, Baltimore, MD 21218.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1314424" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chlorides/*pharmacology ; Choline/pharmacology ; Embryo, Nonmammalian/physiology ; Female ; Inositol 1,4,5-Trisphosphate/metabolism ; Inositol Phosphates/*metabolism ; Kinetics ; Lithium/*pharmacology ; Lithium Chloride ; Mesoderm/drug effects/*physiology ; Signal Transduction/drug effects ; Teratogens/*pharmacology ; Xenopus/*embryology
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-07-17
    Description: In the letter of 19 June 1992 (p. 1613) by Ellen C. Weaver and Stephanie J. Bird of the Association for Women in Science (AWIS), an incorrect phone number was given for the AWIS mentoring program. The correct number is 800-886-AWIS.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Byrne, J -- New York, N.Y. -- Science. 1992 Jul 17;257(5068):310.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1631547" target="_blank"〉PubMed〈/a〉
    Keywords: Abortion, Spontaneous/*etiology ; Bacterial Infections/complications ; Female ; *Fetal Tissue Transplantation ; Fetus/*microbiology ; Humans ; Pregnancy ; Virus Diseases/complications
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-05-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Allison, M -- New York, N.Y. -- Science. 1992 May 22;256(5060):1128-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1589786" target="_blank"〉PubMed〈/a〉
    Keywords: Breast Neoplasms/*etiology/mortality ; Canada/epidemiology ; Female ; Humans ; Mammography/*adverse effects ; United States/epidemiology
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-04-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cann, R L -- New York, N.Y. -- Science. 1992 Apr 3;256(5053):79.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1566059" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; DNA/*genetics ; Female ; Fossils ; Hominidae/*genetics ; Humans
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-01-10
    Description: Mitogen-activated protein (MAP) kinases are activated in response to a variety of extracellular stimuli by phosphorylation on tyrosine and threonine residues. Xp42 is a Xenopus laevis MAP kinase that is activated during oocyte maturation. Modified forms of Xp42 that lacked enzymatic activity or either of the phosphorylation sites were expressed in Xenopus oocytes. When meiotic maturation was induced with progesterone, each mutant Xp42 was phosphorylated, indicating that at least one kinase was activated that can phosphorylate Xp42 on tyrosine and threonine. Phosphorylation of one residue is not strictly dependent on phosphorylation of the other.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Posada, J -- Cooper, J A -- CA-08860/CA/NCI NIH HHS/ -- CA-28151/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1992 Jan 10;255(5041):212-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Fred Hutchinson Cancer Research Center, Seattle, WA 98104.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1313186" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Calcium-Calmodulin-Dependent Protein Kinases ; Enzyme Activation ; Female ; Glutathione Transferase/genetics/metabolism ; Meiosis/*physiology ; Methionine/metabolism ; Mitogen-Activated Protein Kinase 1 ; Molecular Sequence Data ; Oocytes/cytology/drug effects/*enzymology ; Peptides/chemical synthesis/metabolism ; Phosphates/metabolism ; Phosphorylation ; Progesterone/pharmacology ; Protein Kinases/genetics/isolation & purification/*metabolism ; Protein-Serine-Threonine Kinases ; Protein-Tyrosine Kinases ; Proto-Oncogene Proteins c-myc/genetics/metabolism ; RNA, Messenger/genetics ; Recombinant Fusion Proteins/metabolism ; Transcription, Genetic ; Xenopus laevis
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  • 38
    Publication Date: 1992-11-13
    Description: Linkage analysis of ten Utah kindreds and one Texas kindred with multiple cases of cutaneous malignant melanoma (CMM) provided evidence that a locus for familial melanoma susceptibility is in the chromosomal region 9p13-p22. The genetic markers analyzed reside in a candidate region on chromosome 9p21, previously implicated by the presence of homozygous deletions in melanoma tumors and by the presence of a germline deletion in an individual with eight independent melanomas. Multipoint linkage analysis was performed between the familial melanoma susceptibility locus (MLM) and two short tandem repeat markers, D9S126 and the interferon-alpha (IFNA) gene, which reside in the region of somatic loss in melanoma tumors. An analysis incorporating a partially penetrant dominant melanoma susceptibility locus places MLM near IFNA and D9S126 with a maximum location score of 12.71. Therefore, the region frequently deleted in melanoma tumors on 9p21 presumably contains a locus that plays a critical role in predisposition to familial melanoma.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cannon-Albright, L A -- Goldgar, D E -- Meyer, L J -- Lewis, C M -- Anderson, D E -- Fountain, J W -- Hegi, M E -- Wiseman, R W -- Petty, E M -- Bale, A E -- CA 42014/CA/NCI NIH HHS/ -- CA 48711/CA/NCI NIH HHS/ -- RR 00064/RR/NCRR NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1992 Nov 13;258(5085):1148-52.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City 84132.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1439824" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Aged ; Aged, 80 and over ; Base Sequence ; Child ; Chromosome Aberrations ; *Chromosomes, Human, Pair 9 ; Dysplastic Nevus Syndrome/genetics ; Female ; Genes, Tumor Suppressor ; Genetic Markers ; Humans ; Lod Score ; Male ; Melanoma/*genetics ; Middle Aged ; Molecular Sequence Data ; Pedigree ; Skin Neoplasms/*genetics ; Texas ; Utah
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  • 39
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-10-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stone, R -- New York, N.Y. -- Science. 1992 Oct 30;258(5083):734.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1439776" target="_blank"〉PubMed〈/a〉
    Keywords: Breast Neoplasms/*prevention & control ; Female ; *Financing, Government ; Humans ; *National Institutes of Health (U.S.) ; Tamoxifen/*therapeutic use ; United States
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  • 40
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-04-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1992 Apr 10;256(5054):167.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1314420" target="_blank"〉PubMed〈/a〉
    Keywords: *Centers for Disease Control and Prevention (U.S.) ; Female ; HIV Infections/*prevention & control/transmission ; *Health Policy ; Humans ; Male ; *Sex Education ; *Sexual Behavior ; United States
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  • 41
    Publication Date: 1992-08-14
    Description: The study of the human pathogen papillomaviruses (HPVs) has been hampered by the inability to propagate the virus in tissue culture. The addition of 12-O-tetradecanoyl phorbol-13-acetate to the media of organotypic (raft) cultures increased expression of physiological markers of keratinocyte differentiation and concomitantly induced production of virions. Capsid production was detected in differentiated suprabasal cells. Virions approximately 54 nanometers in size were observed by electron microscopy in raft tissue cross sections in the suprabasal layers. Virions purified through isopycnic gradients were found to contain type 31b DNA and exhibited an icosahedral shape similar to that of papillomaviruses found in clinical samples.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Meyers, C -- Frattini, M G -- Hudson, J B -- Laimins, L A -- New York, N.Y. -- Science. 1992 Aug 14;257(5072):971-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics and Cell Biology, Howard Hughes Medical Institute, University of Chicago, IL 60637.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1323879" target="_blank"〉PubMed〈/a〉
    Keywords: Capsid/biosynthesis ; *Cell Differentiation ; Cell Line ; Epithelial Cells ; Epithelium/drug effects/microbiology ; Female ; Humans ; Microscopy, Electron ; Papillomaviridae/drug effects/*physiology/ultrastructure ; Tetradecanoylphorbol Acetate/pharmacology ; Uterine Cervical Neoplasms ; Virion/drug effects/physiology/ultrastructure ; *Virus Replication/drug effects
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  • 42
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-07-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ridley, M -- New York, N.Y. -- Science. 1992 Jul 17;257(5068):327-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1631552" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Birds ; Body Constitution ; Computer Simulation ; Diptera ; Face/anatomy & histology ; Female ; Humans ; Male ; Odors ; *Sexual Behavior, Animal ; Tail/anatomy & histology
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  • 43
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-04-03
    Description: A previously unknown class of dominant, maternal-effect lethal M factors was found to be widespread in natural populations of the flour beetle, Tribolium castaneum, collected on several continents. Such factors are integrated into the host chromosomes at variable locations and show the remarkable property of self-selection by maternal-effect lethality to all hatchlings that do not inherit a copy of the factor itself. Offspring are rescued by either paternally or maternally inherited copies. The M-bearing chromosome is thereby perpetuated at the expense of its non-M homolog. M factors that map to different regions of the genome do not rescue one another's maternal-effect lethality. Factors expressing these properties are predicted to spread in a population, even in the absence of any additional selective advantage. Similar factors also occur in the related species T. confusum.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beeman, R W -- Friesen, K S -- Denell, R E -- New York, N.Y. -- Science. 1992 Apr 3;256(5053):89-92.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉U.S. Grain Marketing Research Laboratory, U.S. Department of Agriculture, Manhattan, KS 66502.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1566060" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Beetles/*genetics ; Crosses, Genetic ; Female ; Fertility/genetics ; *Genes, Dominant ; *Genes, Lethal ; Genotype ; In Vitro Techniques ; Phenotype ; *Sex Differentiation ; Zygote/physiology
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  • 44
    Publication Date: 1992-05-08
    Description: Voltage-sensitive sodium channels are responsible for the initiation and propagation of the action potential and therefore are important for neuronal excitability. Complementary DNA clones encoding the beta 1 subunit of the rat brain sodium channel were isolated by a combination of polymerase chain reaction and library screening techniques. The deduced primary structure indicates that the beta 1 subunit is a 22,851-dalton protein that contains a single putative transmembrane domain and four potential extracellular N-linked glycosylation sites, consistent with biochemical data. Northern blot analysis reveals a 1,400-nucleotide messenger RNA in rat brain, heart, skeletal muscle, and spinal cord. Coexpression of beta 1 subunits with alpha subunits increases the size of the peak sodium current, accelerates its inactivation, and shifts the voltage dependence of inactivation to more negative membrane potentials. These results indicate that the beta 1 subunit is crucial in the assembly, expression, and functional modulation of the heterotrimeric complex of the rat brain sodium channel.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Isom, L L -- De Jongh, K S -- Patton, D E -- Reber, B F -- Offord, J -- Charbonneau, H -- Walsh, K -- Goldin, A L -- Catterall, W A -- NS15751/NS/NINDS NIH HHS/ -- NS25704/NS/NINDS NIH HHS/ -- NS26729/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1992 May 8;256(5058):839-42.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, University of Washington, Seattle 98195.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1375395" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Blotting, Northern ; Brain/*physiology ; Cloning, Molecular ; DNA/genetics/isolation & purification ; Female ; Kinetics ; Macromolecular Substances ; Membrane Potentials ; Molecular Sequence Data ; Oocytes/physiology ; Polymerase Chain Reaction/methods ; Protein Conformation ; RNA/genetics/isolation & purification ; RNA, Messenger/genetics ; Rats ; Sodium Channels/*genetics/*physiology ; Voltage-Gated Sodium Channel beta-1 Subunit ; Xenopus
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  • 45
    Publication Date: 1992-01-10
    Description: The progesterone analog RU486, an abortifacient, inhibits the action of progestins in humans but not in chickens or hamsters. Substitution of cysteine at position 575 by glycine in the hormone binding domain (HBD) of the chicken progesterone receptor (cPR) generated a cPR that binds RU486 and whose activity is antagonized by that compound. In fact, all receptors that bind RU486 have a glycine at the corresponding position. The hamster PR, like cPR, has a cysteine. Only glycine--not methionine or leucine--at position 575 allowed binding of RU486 to cPR. Substitution of this glycine by cysteine in the human PR (hPR) abrogated binding of RU486 but not that of an agonist. The corresponding mutation in the human glucocorticoid receptor resulted in a loss of binding of both dexamethasone and RU486. Examination of a series of 11 beta-substituted steroids showed that antagonism is not an intrinsic property of an antihormone, because one hPR antagonist acted as an agonist for a mutated hPR. The positioning of an aromatic 11 beta-substitution in the PR HBD appears to be critical for generating agonistic or antagonistic activity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Benhamou, B -- Garcia, T -- Lerouge, T -- Vergezac, A -- Gofflo, D -- Bigogne, C -- Chambon, P -- Gronemeyer, H -- New York, N.Y. -- Science. 1992 Jan 10;255(5041):206-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department Endocrinologie, Centre de Recherche Roussel-Uclaf, Romainville, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1372753" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cricetinae ; Female ; Humans ; Mifepristone/*pharmacology ; Molecular Sequence Data ; Mutagenesis, Site-Directed ; Oligodeoxyribonucleotides ; Polymerase Chain Reaction ; Progesterone/analogs & derivatives/metabolism ; RNA/genetics/isolation & purification ; Receptors, Mineralocorticoid ; Receptors, Progesterone/*drug effects/genetics/metabolism ; Receptors, Steroid/drug effects/genetics/metabolism ; Recombinant Proteins/drug effects/metabolism ; Restriction Mapping ; Uterus/metabolism
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  • 46
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-05-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palca, J -- New York, N.Y. -- Science. 1992 May 29;256(5061):1274.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1598567" target="_blank"〉PubMed〈/a〉
    Keywords: *Abortion, Induced ; *Abortion, Spontaneous ; Congenital Abnormalities ; Female ; *Fetal Tissue Transplantation ; Humans ; National Institutes of Health (U.S.) ; *Politics ; Pregnancy ; Research ; United States
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  • 47
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-10-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weiss, R -- New York, N.Y. -- Science. 1992 Oct 23;258(5082):546-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1329205" target="_blank"〉PubMed〈/a〉
    Keywords: Centers for Disease Control and Prevention (U.S.) ; Child ; *Developing Countries ; Female ; Global Health ; Humans ; Male ; Measles/*prevention & control ; Measles Vaccine/*adverse effects ; Sex Factors ; United States ; World Health Organization
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  • 48
    Publication Date: 1992-10-02
    Description: A deletion map of the human Y chromosome was constructed by testing 96 individuals with partial Y chromosomes for the presence or absence of many DNA loci. The individuals studied included XX males, XY females, and persons in whom chromosome banding had revealed translocated, deleted, isodicentric, or ring Y chromosomes. Most of the 132 Y chromosomal loci mapped were sequence-tagged sites, detected by means of the polymerase chain reaction. These studies resolved the euchromatic region (short arm, centromere, and proximal long arm) of the Y chromosome into 43 ordered intervals, all defined by naturally occurring chromosomal breakpoints and averaging less than 800 kilobases in length. This deletion map should be useful in identifying Y chromosomal genes, in exploring the origin of chromosomal disorders, and in tracing the evolution of the Y chromosome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vollrath, D -- Foote, S -- Hilton, A -- Brown, L G -- Beer-Romero, P -- Bogan, J S -- Page, D C -- New York, N.Y. -- Science. 1992 Oct 2;258(5079):52-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Research Laboratories, Whitehead Institute, Cambridge, MA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1439769" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; *Chromosome Mapping ; Electrophoresis, Polyacrylamide Gel ; Female ; *Gene Deletion ; *Genome, Human ; Humans ; Male ; Molecular Sequence Data ; Polymerase Chain Reaction ; Sequence Tagged Sites ; *Y Chromosome
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  • 49
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-02-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palca, J -- New York, N.Y. -- Science. 1992 Feb 28;255(5048):1069.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1546308" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/congenital/microbiology/*transmission ; Female ; HIV-1/*genetics ; Humans ; Infant, Newborn ; Infant, Newborn, Diseases/*microbiology ; Maternal-Fetal Exchange ; Pregnancy ; Selection, Genetic
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  • 50
    Publication Date: 1992-07-10
    Description: As a first step in a program to use genetically altered mice in the study of memory mechanisms, mutant mice were produced that do not express the alpha-calcium-calmodulin-dependent kinase II (alpha-CaMKII). The alpha-CaMKII is highly enriched in postsynaptic densities of hippocampus and neocortex and may be involved in the regulation of long-term potentiation (LTP). Such mutant mice exhibited mostly normal behaviors and presented no obvious neuroanatomical defects. Whole cell recordings reveal that postsynaptic mechanisms, including N-methyl-D-aspartate (NMDA) receptor function, are intact. Despite normal postsynaptic mechanisms, these mice are deficient in their ability to produce LTP and are therefore a suitable model for studying the relation between LTP and learning processes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Silva, A J -- Stevens, C F -- Tonegawa, S -- Wang, Y -- 5 R01 NS 12961-17/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1992 Jul 10;257(5067):201-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Center for Cancer Research, Cambridge, MA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1378648" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Behavior, Animal/physiology ; Blotting, Northern ; Blotting, Southern ; Calcium-Calmodulin-Dependent Protein Kinases ; Chromosome Mapping ; DNA/analysis ; Electrophysiology ; Female ; Hippocampus/*physiology ; Learning/physiology ; Male ; Mice ; Mice, Inbred BALB C ; Mice, Mutant Strains/*genetics ; Mutagenesis, Site-Directed ; Plasmids ; Protein Kinases/*deficiency/*physiology ; RNA/analysis ; Receptors, N-Methyl-D-Aspartate ; Synapses/physiology ; Transfection
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  • 51
    Publication Date: 1992-08-07
    Description: Autosomal recessive generalized myotonia (Becker's disease) (GM) and autosomal dominant myotonia congenita (Thomsen's disease) (MC) are characterized by skeletal muscle stiffness that is a result of muscle membrane hyperexcitability. For both diseases, alterations in muscle chloride or sodium currents or both have been observed. A complementary DNA for a human skeletal muscle chloride channel (CLC-1) was cloned, physically localized on chromosome 7, and linked to the T cell receptor beta (TCRB) locus. Tight linkage of these two loci to GM and MC was found in German families. An unusual restriction site in the CLC-1 locus in two GM families identified a mutation associated with that disease, a phenylalanine-to-cysteine substitution in putative transmembrane domain D8. This suggests that different mutations in CLC-1 may cause dominant or recessive myotonia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koch, M C -- Steinmeyer, K -- Lorenz, C -- Ricker, K -- Wolf, F -- Otto, M -- Zoll, B -- Lehmann-Horn, F -- Grzeschik, K H -- Jentsch, T J -- New York, N.Y. -- Science. 1992 Aug 7;257(5071):797-800.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Center for Human Genetics, Marburg University, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1379744" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Blotting, Southern ; Chloride Channels ; *Chromosomes, Human, Pair 7 ; Cloning, Molecular ; DNA/genetics ; Female ; *Genes, Dominant ; *Genes, Recessive ; Genetic Linkage ; Humans ; Ion Channels/*genetics ; Lod Score ; Male ; Membrane Proteins/*genetics ; Molecular Sequence Data ; Muscular Dystrophies/*genetics ; Myotonia Congenita/*genetics ; Pedigree ; Polymorphism, Restriction Fragment Length ; Receptors, Antigen, T-Cell/genetics ; Recombination, Genetic ; Sequence Homology, Nucleic Acid
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  • 52
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-05-01
    Description: Emotional responses such as fear are rapidly acquired through classical conditioning. This report examines the neural substrate underlying memory of acquired fear. Rats were classically conditioned to fear both tone and context through the use of aversive foot shocks. Lesions were made in the hippocampus either 1, 7, 14, or 28 days after training. Contextual fear was abolished in the rats that received lesions 1 day after fear conditioning. However, rats for which the interval between learning and hippocampal lesions was longer retained significant contextual fear memory. In the same animals, lesions did not affect fear response to the tone at any time. These results indicate that fear memory is not a single process and that the hippocampus may have a time-limited role in associative fear memories evoked by polymodal (contextual) but not unimodal (tone) sensory stimuli.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, J J -- Fanselow, M S -- New York, N.Y. -- Science. 1992 May 1;256(5057):675-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychology, University of California, Los Angeles 90024.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1585183" target="_blank"〉PubMed〈/a〉
    Keywords: Amnesia, Retrograde/*etiology/physiopathology ; Animals ; Behavior, Animal/physiology ; Conditioning, Classical/*physiology ; Electroshock ; Fear/*physiology ; Female ; Hippocampus/physiopathology ; Rats
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  • 53
    Publication Date: 1992-05-22
    Description: Mice lacking in CD8 were generated from homologous recombination in embryonal stem cells at the CD8 locus and bred with the experimental allergic encephalomyelitis (EAE)-susceptible PL/JH-2u through four backcross generations to investigate the role of CD8+ T cells in this model of multiple sclerosis. The disease onset and susceptibility were similar to those of wild-type mice. However, the mutant mice had a milder acute EAE, reflected by fewer deaths, but more chronic EAE, reflected by a higher frequency of relapse. This suggests that CD8+ T lymphocytes may participate as both effectors and regulators in this animal model.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koh, D R -- Fung-Leung, W P -- Ho, A -- Gray, D -- Acha-Orbea, H -- Mak, T W -- New York, N.Y. -- Science. 1992 May 22;256(5060):1210-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical Biophysics, University of Toronto, Princess Margaret Hospital, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1589800" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD8/*genetics/metabolism ; Crosses, Genetic ; DNA Replication ; Death ; Disease Models, Animal ; Encephalomyelitis, Autoimmune, Experimental/immunology/*physiopathology ; Female ; Interleukin-2/biosynthesis ; Male ; Mice ; Mice, Inbred Strains ; Mice, Mutant Strains ; Multiple Sclerosis/immunology/physiopathology ; Reference Values ; T-Lymphocytes/*immunology ; Thymidine/metabolism
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-06-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sullivan, P J -- New York, N.Y. -- Science. 1992 Jun 26;256(5065):1743-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1520396" target="_blank"〉PubMed〈/a〉
    Keywords: Consanguinity ; *DNA Fingerprinting ; Data Interpretation, Statistical ; Databases, Bibliographic ; Female ; Humans ; Male ; Sensitivity and Specificity ; United States
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  • 55
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-07-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Anderson, A -- New York, N.Y. -- Science. 1992 Jul 17;257(5068):324-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1631551" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Embryonic and Fetal Development/genetics ; Female ; Gene Expression Regulation/genetics ; Humans ; Insulin-Like Growth Factor II/physiology ; Male ; Mice ; Paramecium ; Plants ; Reproduction/*genetics ; *Sex
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  • 56
    Publication Date: 1992-11-13
    Description: A national probability survey of human immunodeficiency virus (HIV)-related risk factors among the general heterosexual population, the National AIDS (acquired immunodeficiency syndrome) Behavioral Surveys, has obtained data from 10,630 respondents. Data are presented on the prevalence of HIV-related risks in the general heterosexual population, on the distribution of the three largest risk groups across social strata, and on the prevalence and distribution of condom use among heterosexuals reporting a risk factor. Between 15 and 31 percent of heterosexuals nationally and 20 and 41 percent in cities with a high prevalence of AIDS reported an HIV risk factor. Condom use was relatively low. Only 17 percent of those with multiple sexual partners, 12.6 percent of those with risky sexual partners, and 10.8 percent of untested transfusion recipients used condoms all the time. Overall, the results suggest that current HIV prevention programs have, to a very limited extent, reached those heterosexuals with multiple sexual partners but have failed to reach many other groups of the heterosexual population at risk for HIV. New public health strategies may be needed for these specific risk groups.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Catania, J A -- Coates, T J -- Stall, R -- Turner, H -- Peterson, J -- Hearst, N -- Dolcini, M M -- Hudes, E -- Gagnon, J -- Wiley, J -- MH43892/MH/NIMH NIH HHS/ -- MH46240/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1992 Nov 13;258(5085):1101-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of California, San Francisco 94143.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1439818" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*epidemiology/prevention & control ; Adolescent ; Adult ; Age Factors ; Aged ; Blood Transfusion ; *Condoms ; Continental Population Groups ; Female ; HIV Seropositivity ; Health Surveys ; Hemophilia A/complications ; Humans ; Interviews as Topic ; Male ; Middle Aged ; Regression Analysis ; Risk Factors ; Sexual Behavior ; Sexual Partners ; Substance Abuse, Intravenous ; Time Factors ; United States
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  • 57
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-07-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koshland, D E Jr -- New York, N.Y. -- Science. 1992 Jun 26;256(5065):1741.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1615314" target="_blank"〉PubMed〈/a〉
    Keywords: *Aborted Fetus ; *Abortion, Induced ; Animals ; Biomedical Research ; Ethics, Medical ; Female ; *Fetal Research ; *Fetal Tissue Transplantation ; Humans ; Mice ; National Institutes of Health (U.S.)/economics ; Pregnancy ; Research ; *Risk Assessment ; *Tissue and Organ Procurement ; United States
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  • 58
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-07-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Amato, I -- New York, N.Y. -- Science. 1992 Jul 10;257(5067):158-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1631542" target="_blank"〉PubMed〈/a〉
    Keywords: *Chemical Industry ; Female ; Humans ; Male ; *Sex Ratio
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  • 59
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-07-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stone, R -- New York, N.Y. -- Science. 1992 Jul 3;257(5066):24-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1621090" target="_blank"〉PubMed〈/a〉
    Keywords: *Abortion, Induced ; Diabetes Mellitus/surgery ; Female ; *Fetal Tissue Transplantation ; Humans ; National Institutes of Health (U.S.) ; Parkinson Disease/surgery ; Politics ; Pregnancy ; Research Support as Topic/*legislation & jurisprudence ; United States
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-06-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stone, R -- New York, N.Y. -- Science. 1992 Jun 26;256(5065):1754.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1535454" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Breast Neoplasms/chemically induced ; *Contraceptive Agents, Female ; Delayed-Action Preparations ; Female ; Humans ; *Legislation, Drug ; Medroxyprogesterone/adverse effects/*analogs & derivatives ; Medroxyprogesterone Acetate ; Osteoporosis/chemically induced ; United States ; United States Food and Drug Administration ; Uterine Neoplasms/prevention & control
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  • 61
    Publication Date: 1992-01-24
    Description: The protein encoded by the human testis determining gene, SRY, contains a high mobility group (HMG) box related to that present in the T cell-specific, DNA-binding protein TCF-1. Recombinant SRY protein was able to bind to the same core sequence AACAAAG recognized by TCF-1 in a sequence dependent manner. In five XY females point mutations were found in the region encoding the HMG box. In four cases DNA binding activity of mutant SRY protein was negligible; in the fifth case DNA binding was reduced. These results imply that the DNA binding activity of SRY is required for sex determination.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Harley, V R -- Jackson, D I -- Hextall, P J -- Hawkins, J R -- Berkovitz, G D -- Sockanathan, S -- Lovell-Badge, R -- Goodfellow, P N -- MC_U117562207/Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 1992 Jan 24;255(5043):453-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Human Molecular Genetics Laboratory, Imperial Cancer Research Fund, London, United Kingdom.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1734522" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; DNA-Binding Proteins/*metabolism ; Female ; Gene Expression Regulation ; Humans ; In Vitro Techniques ; Male ; Mice ; Molecular Sequence Data ; *Nuclear Proteins ; Oligonucleotide Probes ; Recombinant Proteins/metabolism ; Sequence Alignment ; Sex-Determining Region Y Protein ; Transcription Factors/metabolism
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-12-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cohen, J -- New York, N.Y. -- Science. 1992 Dec 4;258(5088):1568-70.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1455241" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS Vaccines/*therapeutic use ; Acquired Immunodeficiency Syndrome/*prevention & control ; Adolescent ; Child ; Child, Preschool ; Clinical Trials as Topic ; Female ; Humans ; Infant ; Infant, Newborn ; National Institutes of Health (U.S.) ; Pregnancy ; Recombinant Proteins/therapeutic use ; United States
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  • 63
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-11-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cohen, J -- New York, N.Y. -- Science. 1992 Nov 20;258(5086):1298.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1455220" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*prevention & control ; Drug Industry ; Female ; HIV Antibodies/*therapeutic use ; Humans ; Immunotherapy ; Liability, Legal ; Pregnancy ; Pregnancy Complications, Infectious/*therapy
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  • 64
    Publication Date: 1992-12-11
    Description: The telomeres of Xq and Yq have been observed to associate during meiosis, and in rare cases a short synaptonemal complex is present. Molecular cloning of loci from Xqter and Yqter has revealed that their sequence homology extends over 400 kilobases, which suggests the possibility of genetic exchange. This hypothesis was tested by the development of two highly informative microsatellite markers from yeast artificial chromosome clones that carried Xqter sequences and the following of their inheritance in a set of reference pedigrees from the Centre d'Etude du Polymorphisme Humain in Paris, France. From a total of 195 informative male meioses, four recombination events between these loci were observed. In three cases, paternal X alleles were inherited by male offspring, and in one case a female offspring inherited her father's Y allele. These data support the existence of genetic exchange at Xq-Yq, which defines a second pseudoautosomal region between the sex chromosomes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Freije, D -- Helms, C -- Watson, M S -- Donis-Keller, H -- HG00100/HG/NHGRI NIH HHS/ -- HG00201/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 1992 Dec 11;258(5089):1784-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Surgery, Washington University School of Medicine, St. Louis, MO 63110.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1465614" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Base Sequence ; Cell Line ; Chromosome Banding ; Chromosome Mapping ; Chromosomes, Fungal ; Cloning, Molecular ; DNA/*genetics ; Factor VIII/genetics ; Female ; Gene Conversion ; Genetic Linkage ; Haplotypes ; Humans ; Hybrid Cells ; Male ; Molecular Sequence Data ; Oligodeoxyribonucleotides ; Pedigree ; Polymerase Chain Reaction/methods ; Recombination, Genetic ; Rodentia ; Saccharomyces cerevisiae/genetics ; Sequence Homology, Nucleic Acid ; Telomere/*physiology/ultrastructure ; *X Chromosome ; *Y Chromosome
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-05-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hoffman, M -- New York, N.Y. -- Science. 1992 May 22;256(5060):1129.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1350380" target="_blank"〉PubMed〈/a〉
    Keywords: Breast Neoplasms/*genetics ; Female ; Humans ; *Oncogenes ; Protein-Tyrosine Kinases/genetics ; Proto-Oncogene Proteins/*genetics ; Proto-Oncogenes ; Receptor, ErbB-2
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  • 66
    Publication Date: 1992-10-23
    Description: Thymic selection of the developing T cell repertoire is thought to occur at the CD4+CD8+ stage of differentiation and to be determined by the specificity of the T cell receptors (TCRs) that CD4+CD8+ thymocytes express. However, TCR signals can inhibit the differentiation of precursor thymocytes into CD4+CD8+ cells, which suggests that selection might occur earlier than thought. Indeed, in a negatively selecting male thymus, CD4-CD8lo precursor thymocytes that express a transgenic TCR to male antigen are developmentally arrested as a consequence of antigen encounter and fail to become CD4+CD8+. Thus, negative selection can occur before the CD4+CD8+ stage of differentiation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Takahama, Y -- Shores, E W -- Singer, A -- New York, N.Y. -- Science. 1992 Oct 23;258(5082):653-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Experimental Immunology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1357752" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD4/*immunology ; Antigens, CD8/*immunology ; CD4-Positive T-Lymphocytes/cytology/*immunology ; Cell Differentiation/immunology ; Female ; Flow Cytometry ; Male ; Mice ; Mice, Transgenic/immunology ; Receptors, Antigen, T-Cell/*immunology ; T-Lymphocytes/cytology/*immunology ; Thymus Gland/immunology
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  • 67
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-07-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cohen, J -- New York, N.Y. -- Science. 1992 Jul 17;257(5068):316-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1631549" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*drug therapy/prevention & control ; *Biomedical Research ; Clinical Trials as Topic/economics/*legislation & jurisprudence ; *Drug Industry ; Federal Government ; Female ; Humans ; Immunoglobulins, Intravenous/*therapeutic use ; *Liability, Legal ; Maternal-Fetal Exchange ; National Institutes of Health (U.S.) ; Pregnancy ; *Pregnant Women ; United States
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  • 68
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-11-13
    Description: There are three possible outcomes when a T cell recognizes a cell bearing a self or foreign antigen. (i) The T cell is not sufficiently signaled and is unaffected. (ii) The T cell is activated. (iii) The T cell is turned off. The differentiation state of the T cell is critical to the outcome. Although both virgin and memory T cells can be activated by antigens presented by "professional" antigen-presenting cells such as dendritic cells, they differ in their responses to B cells. Experienced T cells respond to antigen presented by B cells, whereas virgin T cells are rendered tolerant. These findings may relate to the phenomena of low- and high-zone tolerance, neonatal tolerance, and the beneficial effect of blood transfusions on allograft survival.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fuchs, E J -- Matzinger, P -- New York, N.Y. -- Science. 1992 Nov 13;258(5085):1156-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Cellular and Molecular Immunology, National Institutes of Health, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1439825" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigen-Presenting Cells/immunology ; B-Lymphocytes/*immunology ; Female ; H-Y Antigen/immunology ; *Immune Tolerance ; Immunization ; *Immunologic Memory ; Isoantigens/immunology ; Lymphocyte Activation ; Male ; Mice ; Mice, Inbred C57BL ; Skin Transplantation ; T-Lymphocytes/*immunology ; T-Lymphocytes, Cytotoxic/immunology
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  • 69
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-07-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cohen, J -- New York, N.Y. -- Science. 1992 Jul 10;257(5067):152-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1631539" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS Vaccines/immunology ; Acquired Immunodeficiency Syndrome/*immunology/prevention & control ; Cohort Studies ; Female ; HIV/pathogenicity ; Humans ; Immunity, Cellular ; Immunity, Innate ; Male ; Multicenter Studies as Topic ; Research Design ; T-Lymphocytes/immunology
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  • 70
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-04-10
    Description: Positive control of the sex-specific alternative splicing of doublesex (dsx) precursor messenger RNA (pre-mRNA) in Drosophila melanogaster involves the activation of a female-specific 3' splice site by the products of the transformer (tra) and transformer-2 (tra-2) genes. The mechanisms of this process were investigated in an in vitro system in which the female-specific 3' splice site could be activated by recombinant Tra or Tra-2 (or both). An exon sequence essential for regulation in vivo was shown to be both necessary and sufficient for activation in vitro. Nuclear proteins in addition to Tra and Tra-2 were found to bind specifically to this exon sequence. Therefore, Tra and Tra-2 may act by promoting the assembly of a multiprotein complex on the exon sequence. This complex may facilitate recognition of the adjacent 3' splice site by the splicing machinery.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tian, M -- Maniatis, T -- GM42231/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1992 Apr 10;256(5054):237-40.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biology, Harvard University, Cambridge, MA 02138.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1566072" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Baculoviridae/genetics ; Binding Sites ; Cell Nucleus/metabolism ; Cloning, Molecular ; *Drosophila Proteins ; Drosophila melanogaster/*genetics ; Exons ; Female ; Globins/genetics ; HeLa Cells ; Humans ; Male ; Nuclear Proteins/genetics/*metabolism ; RNA Precursors/*genetics ; *RNA Splicing ; Recombinant Proteins/metabolism ; Ribonucleoproteins/genetics/*metabolism ; Sex Characteristics ; Transcription, Genetic
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  • 71
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-11-13
    Description: Parasitism is a widespread and diverse life strategy that connects species throughout the animal kingdom. Female parasitoid flies of the genus Ormia must find a specific cricket host on which to deposit their parasitic maggots. To reproduce, female flies must perform the same task as female crickets: find a singing male cricket. These flies have evolved a unique hearing organ that allows them to detect and locate singing male crickets. Through evolutionary convergence, these flies possess a hearing organ that much more resembles a cricket's ear than a typical fly's ear, allowing these parasitoids to take advantage of the sensory ecological niche of their host.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Robert, D -- Amoroso, J -- Hoy, R R -- DC00103/DC/NIDCD NIH HHS/ -- New York, N.Y. -- Science. 1992 Nov 13;258(5085):1135-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1439820" target="_blank"〉PubMed〈/a〉
    Keywords: Acoustic Stimulation ; Animals ; *Biological Evolution ; Diptera/anatomy & histology/*physiology ; Ear/anatomy & histology ; Female ; Gryllidae/*parasitology ; *Hearing ; Male ; Sex Characteristics ; Sound ; Vocalization, Animal
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  • 72
    Publication Date: 1992-04-03
    Description: A 730-base pair element regulates expression of the Drosophila gap gene Kruppel (Kr) in response to the fly anterior morphogen bicoid (bcd). Two hormone receptor-like proteins, encoded by the genes knirps (kni) and tailless (tll), bind specifically to the element. In vitro, kni protein competes with the homeodomain-containing bcd protein in binding to a 16-base pair target sequence. In vivo experiments suggest that both kni and tll act as competitive repressors of bcd-mediated activation of Kr. These results suggest a mechanism by which developmental genes can be regulated in response to an activating morphogen gradient antagonized by repressors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hoch, M -- Gerwin, N -- Taubert, H -- Jackle, H -- New York, N.Y. -- Science. 1992 Apr 3;256(5053):94-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max-Planck-Institut fur Biophysikalische Chemie, Abteilung Molekulare Entwicklungsbiologie, Gottingen, Federal Republic of Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1348871" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Binding, Competitive ; Chloramphenicol O-Acetyltransferase/genetics/metabolism ; DNA-Binding Proteins/*genetics/metabolism ; Drosophila/embryology/*genetics ; *Drosophila Proteins ; Embryo, Nonmammalian/physiology ; Female ; Gene Expression Regulation ; *Genes, Homeobox ; Genes, Regulator ; Molecular Sequence Data ; *Regulatory Sequences, Nucleic Acid ; Repressor Proteins/*genetics/metabolism ; Restriction Mapping ; beta-Galactosidase/genetics/metabolism
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  • 73
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-10-30
    Description: Human growth has been viewed as a continuous process characterized by changing velocity with age. Serial length measurements of normal infants were assessed weekly (n = 10), semiweekly (n = 18), and daily (n = 3) (19 females and 12 males) during their first 21 months. Data show that growth in length occurs by discontinuous, aperiodic saltatory spurts. These bursts were 0.5 to 2.5 centimeters in amplitude during intervals separated by no measurable growth (2 to 63 days duration). These data suggest that 90 to 95 percent of normal development during infancy is growth-free and length accretion is a distinctly saltatory process of incremental bursts punctuating background stasis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lampl, M -- Veldhuis, J D -- Johnson, M L -- DK 38942/DK/NIDDK NIH HHS/ -- KO4HD00634/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1992 Oct 30;258(5083):801-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anthropology, University of Pennsylvania, Philadelphia 19104.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1439787" target="_blank"〉PubMed〈/a〉
    Keywords: Aging ; Body Height ; Cephalometry ; Female ; *Growth ; Head/growth & development ; Humans ; Infant ; Infant, Newborn ; Kinetics ; Male ; *Models, Biological
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  • 74
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-12-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thompson, L -- New York, N.Y. -- Science. 1992 Dec 11;258(5089):1728.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1306067" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Advisory Committees ; Brain Neoplasms/*therapy ; Complementary Therapies ; Cystic Fibrosis/genetics/mortality/*therapy ; Federal Government ; Female ; *Genetic Therapy ; Glioma/*therapy ; *Government Regulation ; Humans ; Middle Aged ; National Institutes of Health (U.S.) ; Politics ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 75
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-06-05
    Description: The story of the renal transplant program of the Peter Bent Brigham Hospital (now the Brigham and Women's Hospital) in Boston weaves together three distinct threads: the study of renal disease, the phenomenon of skin grafting in twins, and the development of surgical procedures ultimately leading to the use of chemical immunosuppression. The common leitmotiv is one of a single event or report proving to be decisive. Unanticipated consequences of successful human organ transplantation include the reorganization of clinical and nonclinical disciplines, national and international cooperation in organ preservation and distribution, tissue-typing as a marker for disease, redefinition of death in terms of brain function, better understanding of disease processes, and new health care quandaries that result from the scarcity of organ donors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Murray, J E -- New York, N.Y. -- Science. 1992 Jun 5;256(5062):1411-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Harvard Medical School, Brigham and Women's Hospital, Boston, MA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1604314" target="_blank"〉PubMed〈/a〉
    Keywords: Animal Experimentation ; Animals ; Cadaver ; Female ; Human Body ; Humans ; Immunosuppression ; Kidney Transplantation ; Male ; Skin Transplantation ; Tissue and Organ Procurement ; *Transplantation/methods ; Transplantation, Homologous
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  • 76
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-10-02
    Description: A genetic linkage map of the human genome was constructed that consists of 1416 loci, including 279 genes and expressed sequences. The loci are represented by 1676 polymorphic systems genotyped with the CEPH reference pedigree resource. A total of 339 microsatellite repeat markers assayed by PCR are contained within the map, and of the 351 markers with heterozygosities of at least 70%, 205 are microsatellites. Seven telomere loci define physical and genetic endpoints for 2q, 4p, 7q, 8p, 14q, 16p, and 16q, and in other cases distal markers on the maps have been localized to terminal cytogenetic bands. Therefore, at least 92% of the autosomal length of the genome and 95% of the X chromosome is estimated to be spanned by the map. Since the maps have relatively high marker density and numerous highly informative loci, they can be used to map disease phenotypes, even for those with limited pedigree resources. The baseline map provides a foundation for achieving continuity of clone-based physical maps and for the development of a truly integrated physical, genetic, and cytogenetic map of the human.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉HD24605/HD/NICHD NIH HHS/ -- HG00373/HG/NHGRI NIH HHS/ -- HG00461/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 1992 Oct 2;258(5079):67-86.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1439770" target="_blank"〉PubMed〈/a〉
    Keywords: *Chromosome Mapping ; *Chromosomes, Human ; DNA, Satellite ; Female ; *Genetic Linkage ; Genetic Markers ; *Genome, Human ; Humans ; Male ; Polymerase Chain Reaction
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  • 77
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-10-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1992 Oct 2;258(5079):148-62.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1359639" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; *Chromosome Mapping ; Female ; Genetic Linkage ; Genetic Markers ; *Genome, Human ; Humans ; Male ; Polymorphism, Genetic ; Polymorphism, Restriction Fragment Length
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  • 78
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-06-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1992 Jun 26;256(5065):1761-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1615320" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Aged ; Aged, 80 and over ; Child ; Continental Population Groups ; Female ; Humans ; Male ; Middle Aged ; Serotonin/deficiency ; Sex Factors ; *Suicide/psychology
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  • 79
    Publication Date: 1992-12-11
    Description: Infection with the human immunodeficiency virus (HIV) is frequently accompanied by the AIDS (acquired immunodeficiency syndrome) dementia complex. The role of specific HIV genetic elements in the pathogenesis of central nervous system (CNS) disease is not clear. Transgenic mice were constructed that contained the long terminal repeats (LTRs) of two CNS-derived strains and a T cell tropic strain of HIV-1. Only mice generated with CNS-derived LTRs directed expression in the CNS, particularly in neurons. Thus, some strains of HIV-1 have a selective advantage for gene expression in the brain, and neurons can supply the cellular factors necessary for their transcription.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Corboy, J R -- Buzy, J M -- Zink, M C -- Clements, J E -- AI27297/AI/NIAID NIH HHS/ -- AI28748/AI/NIAID NIH HHS/ -- NS07000/NS/NINDS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1992 Dec 11;258(5089):1804-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Comparative Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21205.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1465618" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/*physiology ; Central Nervous System/*physiology ; Female ; Gene Expression ; *HIV Long Terminal Repeat ; HIV-1/*genetics ; Intestine, Small/physiology ; Lung/physiology ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Inbred DBA ; Mice, Transgenic ; Ocular Physiological Phenomena ; Organ Specificity ; RNA, Messenger/analysis/*metabolism ; Recombinant Fusion Proteins/metabolism ; Spinal Cord/physiology ; Thymus Gland/physiology ; beta-Galactosidase/genetics/metabolism
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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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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-03-06
    Description: In humans the two cerebral hemispheres of the brain are functionally specialized with the left hemisphere predominantly mediating language skills. The basis of this lateralization has been proposed to be differential localization of the linguistic, the motoric, or the symbolic properties of language. To distinguish among these possibilities, lateralization of spoken language, signed language, and nonlinguistic gesture have been compared in deaf and hearing individuals. This analysis, plus additional clinical findings, support a linguistic basis of left hemisphere specialization.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Corina, D P -- Vaid, J -- Bellugi, U -- DC00146/DC/NIDCD NIH HHS/ -- DC00201/DC/NIDCD NIH HHS/ -- HD12349/HD/NICHD NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1992 Mar 6;255(5049):1258-60.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Salk Institute for Biological Studies, La Jolla, CA 92037.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1546327" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Brain/*physiology ; Deafness ; Female ; Functional Laterality/*physiology ; Gestures ; Humans ; *Language ; Male ; Sign Language ; Speech
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  • 81
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-06-12
    Description: The neurohypophyseal hormone oxytocin (OT) is the most potent uterotonic agent known and is used to induce labor. Yet, endogenous circulating OT appears not to participate in the induction of labor. As shown here, the finding of OT messenger RNA and peptide in the uterus suggests a solution for this paradox. During gestation, rat uterus OT messenger RNA increased more than 150-fold and, at term, exceeded hypothalamic OT messenger RNA by 70-fold. Thus, during parturition, OT may act primarily as a local mediator and not as a circulating hormone.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lefebvre, D L -- Giaid, A -- Bennett, H -- Lariviere, R -- Zingg, H H -- New York, N.Y. -- Science. 1992 Jun 12;256(5063):1553-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Endocrinology, Royal Victoria Hospital, McGill University, Montreal, Quebec, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1598587" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Female ; Gene Expression ; Hypothalamus/physiology ; Nucleic Acid Hybridization ; Oxytocin/*genetics ; Polymerase Chain Reaction ; RNA, Messenger/genetics ; Rats ; Uterus/*physiology
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  • 82
    Publication Date: 1992-11-20
    Description: Heterosexual transmission through the cervico-vaginal mucosa is the principal route of human immunodeficiency virus (HIV) infection in Africa and is increasing in the United States and Europe. Vaginal immunization with simian immunodeficiency virus (SIV) had not yet been studied in nonhuman primates. Immune responses in macaques were investigated by stimulation of the genital and gut-associated lymphoid tissue with a recombinant, particulate SIV antigen. Vaginal, followed by oral, administration of the vaccine elicited three types of immunity: (i) gag protein p27-specific, secretory immunoglobulin A (IgA) and immunoglobulin G (IgG) in the vaginal fluid, (ii) specific CD4+ T cell proliferation and helper function in B cell p27-specific IgA synthesis in the genital lymph nodes, and (iii) specific serum IgA and IgG, with CD4+ T cell proliferative and helper functions in the circulating blood.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lehner, T -- Bergmeier, L A -- Panagiotidi, C -- Tao, L -- Brookes, R -- Klavinskis, L S -- Walker, P -- Walker, J -- Ward, R G -- Hussain, L -- New York, N.Y. -- Science. 1992 Nov 20;258(5086):1365-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Immunology, United Medical School, Guy's Hospital, London, United Kingdom.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1360702" target="_blank"〉PubMed〈/a〉
    Keywords: Administration, Oral ; Animals ; Antibodies, Viral/analysis ; CD4-Positive T-Lymphocytes/immunology ; Female ; Gene Products, gag/*immunology ; Immunity ; Immunoglobulin A/immunology ; Immunoglobulin G/immunology ; Macaca mulatta ; Mucous Membrane/immunology ; Recombinant Proteins/immunology ; Saliva/immunology ; Simian Acquired Immunodeficiency Syndrome/*immunology ; Simian Immunodeficiency Virus/*immunology ; T-Lymphocytes, Helper-Inducer/immunology ; Vaccines, Synthetic/administration & dosage/*immunology ; Vagina/immunology
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  • 83
    Publication Date: 1992-05-22
    Description: The proto-oncogene designated erbB2 or HER2 encodes a 185-kilodalton transmembrane tyrosine kinase (p185erbB2), whose overexpression has been correlated with a poor prognosis in several human malignancies. A 45-kilodalton protein heregulin-alpha (HRG-alpha) that specifically induced phosphorylation of p185erbB2 was purified from the conditioned medium of a human breast tumor cell line. Several complementary DNA clones encoding related HRGs were identified, all of which are similar to proteins in the epidermal growth factor family. Scatchard analysis of the binding of recombinant HRG to a breast tumor cell line expressing p185erbB2 showed a single high affinity binding site [dissociation constant (Kd) = 105 +/- 15 picomolar]. Heregulin transcripts were identified in several normal tissues and cancer cell lines. The HRGs may represent the natural ligands for p185erbB2.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holmes, W E -- Sliwkowski, M X -- Akita, R W -- Henzel, W J -- Lee, J -- Park, J W -- Yansura, D -- Abadi, N -- Raab, H -- Lewis, G D -- New York, N.Y. -- Science. 1992 May 22;256(5060):1205-10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Protein Chemistry, Genentech, Inc., South San Francisco, CA 94080.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1350381" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Breast Neoplasms/genetics ; Cell Line ; Chromatography, High Pressure Liquid ; Codon ; Culture Media ; DNA-Binding Proteins/genetics/isolation & purification/*metabolism ; Epidermal Growth Factor/genetics ; Female ; Glycoproteins/*metabolism ; Humans ; Kinetics ; Molecular Sequence Data ; Neuregulins ; Oligonucleotide Probes ; Phosphorylation ; Protein Conformation ; Protein-Tyrosine Kinases/*genetics ; Proto-Oncogene Proteins/*genetics ; *Proto-Oncogenes ; Receptor, ErbB-2 ; Sequence Homology, Nucleic Acid ; Transfection
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  • 84
    Publication Date: 1992-07-03
    Description: Selection of the T cell receptor (TCR) repertoire in the thymus probably involves TCR-mediated signals transduced in developing thymocytes after interaction with thymic stromal cells bearing self ligands. TCR-transduced signals should have identifiable consequences that would distinguish thymocytes whose TCRs have been engaged by self ligands from those whose TCRs have not. Among thymocytes expressing a transgenic TCR of defined specificity, a large number had elevated intracellular calcium concentrations but only when resident in a negatively selecting thymus in which their self ligand was expressed. Thus, developing thymocytes are stimulated by endogenous ligands in vivo to mobilize intracellular calcium, and increased intracellular calcium concentrations may reflect the consequences of intrathymic signaling associated with thymic negative selection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nakayama, T -- Ueda, Y -- Yamada, H -- Shores, E W -- Singer, A -- June, C H -- New York, N.Y. -- Science. 1992 Jul 3;257(5066):96-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Experimental Immunology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1621102" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD4/analysis ; Antigens, CD8/analysis ; Calcium/*metabolism ; Female ; Male ; Mice ; Mice, Transgenic ; Phenotype ; Receptors, Antigen, T-Cell/genetics/*physiology ; Sex Characteristics ; *Signal Transduction ; Spleen/immunology ; T-Lymphocyte Subsets/immunology ; T-Lymphocytes/immunology/*physiology ; Thymus Gland/immunology
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  • 85
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-08-07
    Description: The world human population growth rate after World War II passed through three phases: the rise in the 1950s and 1960s, the fall (though still at a positive level) in the 1970s, and the plateau in the 1980s. The rise was produced by the global decline in death rates, the fall was mainly due to the reduction of fertility in a number of developing countries, and the stagnation of growth rate decline was attributable to three major factors. First, substantial fertility declines started around 1970 and stalled around 1980 in both China and India. Second, the age structure of population changed in favor of higher birth rates. Third, although fertility started to decline significantly around 1970 mainly in East Asia, Southeast Asia, and Latin America, few countries have begun fertility declines since then. Many countries in sub-Saharan Africa and South Asia have not started substantial fertility reductions, deepening the gap between developing countries that are moving to lower fertility levels and those that are left behind.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Horiuchi, S -- New York, N.Y. -- Science. 1992 Aug 7;257(5071):761-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Rockefeller University, New York, NY 10021-6399.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1496396" target="_blank"〉PubMed〈/a〉
    Keywords: Age Factors ; Birth Rate/trends ; Demography ; Female ; Fertility ; Humans ; Male ; Mortality/trends ; *Population Growth
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 86
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-09-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1992 Sep 18;257(5077):1627.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1529350" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*mortality ; Africa/epidemiology ; Female ; Humans ; Population Growth
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  • 87
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-10-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gibbons, A -- New York, N.Y. -- Science. 1992 Oct 30;258(5083):733.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1439775" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/drug therapy ; Female ; Humans ; National Institutes of Health (U.S.) ; *Research ; United States ; *Women's Health
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  • 88
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-03-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1992 Mar 13;255(5050):1366-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1542786" target="_blank"〉PubMed〈/a〉
    Keywords: Female ; Humans ; Neurosciences/*manpower ; Research Personnel/*statistics & numerical data ; United States ; Women, Working/*statistics & numerical data
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  • 89
    Publication Date: 1992-05-22
    Description: The rational design and biological actions of a new class of DNA-cleaving molecules with potent and selective anticancer activity are reported. These relatively simple enediyne-type compounds were designed from basic chemical principles to mimic the actions of the rather complex naturally occurring enediyne anticancer antibiotics, particularly dynemicin A. Equipped with locking and triggering devices, these compounds damage DNA in vitro and in vivo on activation by chemical or biological means. Their damaging effects are manifested in potent anticancer activity with remarkable selectivities. Their mechanism of action involves intracellular unlocking and triggering of a Bergman reaction, leading to highly reactive benzenoid diradicals that cause severe DNA damage. The results of these studies demonstrate the potential of these de novo designed molecules as biotechnology tools and anticancer agents.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nicolaou, K C -- Dai, W M -- Tsay, S C -- Estevez, V A -- Wrasidlo, W -- New York, N.Y. -- Science. 1992 May 22;256(5060):1172-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, Scripps Research Institute, La Jolla, CA 92037.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1589797" target="_blank"〉PubMed〈/a〉
    Keywords: Antibiotics, Antineoplastic/*chemical synthesis/pharmacology ; Antineoplastic Agents/*pharmacology ; Cell Line ; Cell Survival/drug effects ; *DNA Damage ; Dose-Response Relationship, Drug ; Drug Design ; Female ; Humans ; Magnetic Resonance Spectroscopy ; Molecular Structure ; Structure-Activity Relationship ; Tumor Cells, Cultured
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  • 90
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-02-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1992 Feb 7;255(5045):686-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1738842" target="_blank"〉PubMed〈/a〉
    Keywords: Africa ; Base Sequence ; *Biological Evolution ; DNA, Mitochondrial/*chemistry ; Female ; Humans ; Molecular Sequence Data
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  • 91
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-07-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gibbons, A -- New York, N.Y. -- Science. 1992 Jul 17;257(5068):329-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1631553" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Female ; Macaca ; Male ; *Sexual Behavior, Animal
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    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 92
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-07-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gibbons, A -- New York, N.Y. -- Science. 1992 Jul 3;257(5066):23.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1621089" target="_blank"〉PubMed〈/a〉
    Keywords: Female ; Gender Identity ; Humans ; Male ; National Institutes of Health (U.S.) ; *Politics ; *Prejudice ; *Science ; Sexual Behavior ; United States ; *Women's Rights
    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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  • 93
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-07-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Savani, J -- New York, N.Y. -- Science. 1992 Jul 17;257(5068):309-10.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1463509" target="_blank"〉PubMed〈/a〉
    Keywords: Female ; Humans ; *Mathematics ; *Prejudice ; Universities/manpower ; Women
    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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  • 94
    Publication Date: 1992-10-23
    Description: Linkage analysis was used to search the genome for chromosomal regions harboring familial Alzheimer's disease genes. Markers on chromosome 14 gave highly significant positive lod scores in early-onset non-Volga German kindreds; a Zmax of 9.15 (theta = 0.01) was obtained with the marker D14S43 at 14q24.3. One early-onset family yielded a lod score of 4.89 (theta = 0.0). When no assumptions were made about age-dependent penetrance, significant results were still obtained (Zmax = 5.94, theta = 0.0), despite the loss of power to detect linkage under these conditions. Results for the Volga German families were either negative or nonsignificant for markers in this region. Thus, evidence indicates a familial Alzheimer's disease locus on chromosome 14.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schellenberg, G D -- Bird, T D -- Wijsman, E M -- Orr, H T -- Anderson, L -- Nemens, E -- White, J A -- Bonnycastle, L -- Weber, J L -- Alonso, M E -- AG08017/AG/NIA NIH HHS/ -- HG00248/HG/NHGRI NIH HHS/ -- R01MH43240/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1992 Oct 23;258(5082):668-71.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1411576" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/*genetics ; Base Sequence ; *Chromosomes, Human, Pair 14 ; Female ; Genetic Linkage/*genetics ; Humans ; Male ; Molecular Sequence Data ; Oligonucleotide Probes/genetics ; Pedigree
    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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  • 95
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-12-28
    Description: A startlingly simple molecule unites neuroscience, physiology, and immunology, and revises scientists' understanding of how cells communicate and defend themselves.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Culotta, E -- Koshland, D E Jr -- New York, N.Y. -- Science. 1992 Dec 18;258(5090):1862-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1361684" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood Pressure ; Cell Communication ; Chromosome Mapping ; *Chromosomes, Human, Pair 21 ; Female ; Humans ; Male ; Neurotransmitter Agents/metabolism ; Nitric Oxide/*metabolism ; *Oligonucleotides, Antisense ; Penile Erection ; Pregnancy ; RNA, Catalytic/*metabolism ; Sexual Behavior ; Ultrasonography, Prenatal ; *Y Chromosome
    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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  • 96
    Electronic Resource
    Electronic Resource
    Springer
    Calcified tissue international 50 (1992), S. 524-526 
    ISSN: 1432-0827
    Keywords: Verapamil ; Bone ; Osteopenia ; Rat ; Female ; Intestinal calcium absorption
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Summary Verapamil inhibits the intestinal absorption of calcium (Ca) and increases serum parathyroid hormone in rats. The effects of verapamil on bone tissue after long-term treatment is, however, not well described. Adult female and male Sprague-Dawley rats received verapamil in their drinking water at a dosage of 0.075 mg/ml (low dose) or 0.75 mg/ml (high dose) for 12 weeks; control rats received only drinking water. All rats were fed a diet containing 0.1% Ca and 0.5% P. In female rats, the amount of bone ash per volume was significantly reduced from 0.742 g/ml in controls to 0.713 g/ml after low-dose treatment of verapamil, and to 0.667 g/ml following high-dose treatment (P〈0.01). The tibial length was increased from 39.7 mm in controls to 40.3 mm or to 40.7 mm after low or high doses (P〈0.01). The tibial volume increased from 0.385 ml in controls to 0.397 ml after low doses and to 0.429 ml after high doses (P〈0.01). In contrast, in male rats the amount of bone ash per volume was significantly increased from 0.578 g/ml in controls to 0.580 g/ml after low doses and to 0.620 g/ml after high doses of verapamil (P〈0.01). The tibial bone volume in males as decreased from 0.633 ml in controls to 0.641 ml after low doses and to 0.583 ml after high doses (P〈0.05). The tibial length in the males was not changed by verapamil. The intestinal absorption of Ca was reduced in male rats from 5.28 in controls to 4.03 (serosa/mucosa) after low-dose treatment and to 2.46 after high-dose treatment with verapamil (P〈0.05). In female rats, the intestinal absorption of Ca did not change after verapamil treatment. Thus, chronic treatment with verapamil in female rats induced osteopenia whereas in male rats bone growth was inhibited.
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  • 97
    Electronic Resource
    Electronic Resource
    Springer
    Calcified tissue international 50 (1992), S. 300-305 
    ISSN: 1432-0827
    Keywords: Female ; Smoking ; Estradiol ; Testosterone ; Sex hormone-binding globulin ; Cortisol ; Bone density
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Summary There are few studies of the effect of smoking on bone density in young women. The reported antiestrogenic effect of smoking could be a mechanism for a possible effect of smoking on bone. We measured bone mineral density (BMD) by dual-energy X-ray absorptiometry (whole body, proximal femur, lumbar spine), and serum levels (midfollicular phase) of testosterone (T), estradiol (E2), sex hormone-binding globulin (SHBG), and cortisol in 52 women (25 smokers, 27 nonsmokers) aged 20–35 years. The two groups did not differ significantly in age, height, weight, or the sum of eight skinfold thicknesses. The mean number of cigarettes smoked per day and the number of years of smoking were 16.9 and 12.9, respectively. There were no significant differences in BMD between smokers and nonsmokers at any site. For both smokers and nonsmokers, SHBG and the free androgen index (T/SHBG) made significant contributions (P〈0.005) to the variance in BMD at all sitesexcept the lumbar spine. The free estradiol index (E2/SHBG) contributed to whole body BMD (P〈0.05). For all subjects, there were significant inverse relationships between SHBG and BMD (P〈0.002), and positive relationships between T/SHBG and BMD (P〈0.02) for all sites except the lumbar spine. These data suggest that moderate smoking in young women is not associated with low BMD at any site. However, smokers had lower free estradiol and higher SHBG, both of which have been related to increased bone loss in older women.
    Type of Medium: Electronic Resource
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  • 98
    Electronic Resource
    Electronic Resource
    Springer
    Sexual plant reproduction 5 (1992), S. 310-312 
    ISSN: 1432-2145
    Keywords: Actin ; Female ; Gametangia ; Differentiation ; Allomyces
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Female gametangia of the normal bisexual Allomyces species are richer in fluorescently probed (FITC) actin, independent of their apical or subapical positioning during differentiation on the fertile hyphae. The anti-actin, cytochalasin D, can selectively suppress male differentiation in both species.
    Type of Medium: Electronic Resource
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