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  • Articles  (183)
  • Mice  (115)
  • Nucleic Acid Hybridization  (41)
  • Adult  (28)
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  • American Association for the Advancement of Science (AAAS)  (183)
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  • 1985-1989  (183)
  • 1940-1944
  • 1935-1939
  • 1993
  • 1985  (183)
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  • Articles  (183)
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  • American Association for the Advancement of Science (AAAS)  (183)
  • American Association for the Advancement of Science
  • American Chemical Society
  • American Institute of Physics
  • American Institute of Physics (AIP)
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  • 1985-1989  (183)
  • 1940-1944
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  • 1990-1994  (210)
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  • 1
    Publication Date: 1985-08-23
    Description: Mice were fed an ethanol-containing liquid diet for 9 days. On removal of the diet, exposure to 12 atmospheres absolute of a mixture of helium and oxygen precipitated earlier withdrawal, increased withdrawal scores for the first 6 hours, and increased the peak withdrawal intensity compared to dependent animals exposed to control conditions. The enhanced withdrawal did not appear to reflect alterations in ethanol elimination, oxygen or helium partial pressures, body temperature, or general excitability. These results extend to chronically treated animals the evidence that hyperbaric exposure antagonizes the membrane actions of ethanol.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Alkana, R L -- Finn, D A -- Galleisky, G G -- Syapin, P J -- Malcolm, R D -- R01AA03972/AA/NIAAA NIH HHS/ -- New York, N.Y. -- Science. 1985 Aug 23;229(4715):772-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/4040651" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Atmospheric Pressure ; Cell Membrane/drug effects/physiology ; Ethanol/*adverse effects/pharmacology ; Humans ; Male ; Mice ; Substance Withdrawal Syndrome/*physiopathology
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  • 2
    Publication Date: 1985-10-25
    Description: Papillomaviruses (PV) contain several conserved genes that may encode nonstructural proteins; however, none of these predicted gene products have been identified. Papillomavirus E6 genes are retained and expressed as RNA in PV-associated human and animal carcinomas and cell lines. This suggests that the E6 gene product may be important in the maintenance of the malignant phenotype. The E6 open reading frame of the bovine papillomavirus (BPV) genome has been identified as one of two BPV genes that can independently transform mouse cells in vitro. A polypeptide encoded by this region of BPV was produced in a bacterial expression vector and used to raise antisera. The antisera specifically immunoprecipitated the predicted 15.5-kilodalton BPV E6 protein from cells transformed by the E6 gene. The E6 protein was identified in both the nuclear and membrane fractions of these transformed cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Androphy, E J -- Schiller, J T -- Lowy, D R -- 5-F32-CA-07237/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1985 Oct 25;230(4724):442-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2996134" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bovine papillomavirus 1/*genetics ; Cell Line ; Cell Transformation, Viral ; *Genes, Viral ; Mice ; Oncogenes ; Papillomaviridae/*genetics ; RNA, Messenger/genetics ; Rabbits ; Rats ; Tumor Virus Infections/genetics ; Viral Proteins/*genetics/isolation & purification
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  • 3
    Publication Date: 1985-11-15
    Description: The gene encoding the circumsporozoite (CS) protein of the human malaria parasite Plasmodium vivax has been cloned. The deduced sequence of the protein consists of 373 amino acids with a central region of 19 tandem repeats of the nonapeptide Asp-Arg-Ala-Asp/Ala-Gly-Gln-Pro-Ala-Gly. A synthetic 18-amino acid peptide containing two tandem repeats binds to a monoclonal antibody directed to the CS protein of Plasmodium vivax and inhibits the interaction of this antibody with the native protein in sporozoite extracts. The portions of the CS gene that do not contain repeats are closely related to the corresponding regions of the CS genes of two simian malarias, Plasmodium cynomolgi and Plasmodium knowlesi. In contrast, the homology between the CS genes of Plasmodium vivax and Plasmodium falciparum, another malaria parasite of humans, is very limited.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arnot, D E -- Barnwell, J W -- Tam, J P -- Nussenzweig, V -- Nussenzweig, R S -- Enea, V -- New York, N.Y. -- Science. 1985 Nov 15;230(4727):815-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2414847" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibodies, Monoclonal/immunology ; Antigens, Surface/*genetics/immunology ; Cloning, Molecular ; Epitopes/*genetics/immunology ; Haplorhini/parasitology ; Humans ; Malaria/parasitology ; Nucleic Acid Hybridization ; Plasmodium/immunology ; Plasmodium vivax/*genetics/immunology ; *Protozoan Proteins ; Repetitive Sequences, Nucleic Acid
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  • 4
    Publication Date: 1985-12-06
    Description: Two transgenic mice were obtained that contain in their chromosomes the complete hepatitis B virus (HBV) genome except for the core gene. These mice secrete particles of HBV surface antigen (HBsAg) in the serum. In one mouse, HBV DNA sequences that had integrated at two different sites were shown to segregate independently in the first filial generation (F1) and only one of the sequences allowed expression of the surface antigen. Among these animals the males produced five to ten times more HBsAg than the females. A 2.1-kilobase messenger RNA species comigrating with the major surface gene messenger RNA is expressed specifically in the liver in the two original mice. The results suggest that the HBV sequences introduced into the mice are able to confer a tissue-specific expression to the S gene. In addition, the HBV transgenic mice represent a new model for the chronic carrier state of hepatitis B virus infection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Babinet, C -- Farza, H -- Morello, D -- Hadchouel, M -- Pourcel, C -- CA37300-02/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1985 Dec 6;230(4730):1160-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3865370" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carrier State ; DNA, Recombinant ; Female ; *Genetic Engineering ; Hepatitis B/genetics ; Hepatitis B Surface Antigens/*genetics ; Humans ; Male ; Mice ; Mice, Inbred C57BL/genetics ; Nucleic Acid Hybridization ; RNA, Messenger/genetics
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  • 5
    Publication Date: 1985-05-31
    Description: The carcinogenic process is extremely complex and is affected by diverse environmental and host factors. The mechanism for the gradual development of the transformed phenotype (a process termed "progression") was studied in type 5 adenovirus (Ad5)-transformed rat embryo cells. Progression was not correlated with major changes in the pattern of integration of viral DNA sequences. Instead, it was associated with an increased methylation of integrated viral sequences other than those corresponding to the E1 transforming genes of Ad5. A single exposure of progressed cells to the demethylating agent 5-azacytidine (Aza) resulted in a stable reversion to the unprogressed state of the original parental clone. A further selection of cells after growth in agar allowed the isolation of Aza-treated clones that had regained the progressed phenotype. These observations indicate that progression is a reversible process and suggest that progression may be associated with changes in the state of methylation of one or more specific genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Babiss, L E -- Zimmer, S G -- Fisher, P B -- CA-33434/CA/NCI NIH HHS/ -- CA-35675/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1985 May 31;228(4703):1099-101.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2581317" target="_blank"〉PubMed〈/a〉
    Keywords: Adenoviruses, Human/*genetics ; Animals ; Azacitidine/*pharmacology ; Cell Division ; Cell Transformation, Viral/*drug effects ; Cells, Cultured ; DNA, Neoplasm/genetics ; DNA, Viral/genetics ; Gene Expression Regulation ; Genes, Viral ; *Methylation ; Mice ; Neoplasms, Experimental/*pathology ; Rats ; Rats, Inbred Strains/embryology ; Transcription, Genetic
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  • 6
    Publication Date: 1985-05-24
    Description: In a study of recombinant proteins that might be useful in developing a vaccine against malaria, synthetic peptides from the circumsporozoite (CS) protein of Plasmodium falciparum were found to be immunogenic for mice and rabbits. Antibody to peptides from the repeating region of the CS protein recognized native CS protein and blocked sporozoite invasion of human hepatoma cells in vitro. Antibodies to peptides from regions I and II had no biologic activity, although antibody to region I recognized processed CS protein by Western blot analysis. These data support the feasibility of developing a vaccine against the sporozoite stage of the malaria parasite by using synthetic peptides of the repeating region of the CS protein conjugated to a carrier protein.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ballou, W R -- Rothbard, J -- Wirtz, R A -- Gordon, D M -- Williams, J S -- Gore, R W -- Schneider, I -- Hollingdale, M R -- Beaudoin, R L -- Maloy, W L -- New York, N.Y. -- Science. 1985 May 24;228(4702):996-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2988126" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibodies/immunology ; Antibody Formation ; Antigens, Surface/*immunology ; Carcinoma, Hepatocellular ; Cell Line ; Cross Reactions ; Fluorescent Antibody Technique ; Humans ; Immune Sera/immunology ; Liver Neoplasms ; Malaria/prevention & control ; Mice ; Peptides/chemical synthesis/*immunology ; Plasmodium/immunology ; Plasmodium falciparum/*immunology/physiology ; Precipitin Tests ; *Protozoan Proteins ; Rabbits ; Vaccines/immunology
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  • 7
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-12-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barnes, D M -- New York, N.Y. -- Science. 1985 Dec 13;230(4731):1260.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2416055" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autoimmune Diseases/*physiopathology ; Ion Channels/*physiology ; Membrane Potentials ; Mice ; T-Lymphocytes/*physiology
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  • 8
    Publication Date: 1985-11-01
    Description: Aedes triseriatus mosquitoes became dually infected after ingesting two mutants of LaCrosse (LAC) virus simultaneously or after ingesting, by interrupted feeding, the two viruses sequentially within a 2-day period. After 2 weeks of incubation, approximately 25 percent of the vectors contained new virus genotypes as the result of RNA segment reassortment. New viruses were transmitted when the mosquitoes fed on mice. Viruses ingested more than 2 days after the initial infecting virus did not cause superinfection of the mosquito vectors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beaty, B J -- Sundin, D R -- Chandler, L J -- Bishop, D H -- AI 15400/AI/NIAID NIH HHS/ -- AI 19688/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1985 Nov 1;230(4725):548-50.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/4048949" target="_blank"〉PubMed〈/a〉
    Keywords: Aedes/*microbiology ; Animals ; Blood ; Bunyaviridae/*genetics ; Genotype ; Insect Vectors ; Mutation ; Phenotype ; RNA, Viral/analysis ; Time Factors
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  • 9
    Publication Date: 1985-07-19
    Description: Somatostatin receptor concentrations were measured in patients with Alzheimer's disease and controls. In the frontal cortex (Brodmann areas 6, 9, and 10) and temporal cortex (Brodmann area 21), the concentrations of somatostatin in receptors in the patients were reduced to approximately 50 percent of control values. A 40 percent reduction was seen in the hippocampus, while no significant changes were found in the cingulate cortex, postcentral gyrus, temporal pole, and superior temporal gyrus. Scatchard analysis showed a reduction in receptor number rather than a change in affinity. Somatostatin-like immunoreactivity was significantly reduced in both the frontal and temporal cortex. Somatostatin-like immunoreactivity was linearly related to somatostatin-receptor binding in the cortices of Alzheimer's patients. These findings may reflect degeneration of postsynaptic neurons or cortical afferents in the patients' cerebral cortices. Alternatively, decreased somatostatin-like immunoreactivity in Alzheimer's disease might indicate increased release of somatostatin and down regulation of postsynaptic receptors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beal, M F -- Mazurek, M F -- Tran, V T -- Chattha, G -- Bird, E D -- Martin, J B -- 1P50AG05134/AG/NIA NIH HHS/ -- IR23NS19867-1/NS/NINDS NIH HHS/ -- MN/NS31862/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1985 Jul 19;229(4710):289-91.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2861661" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; Alzheimer Disease/*metabolism ; Cerebral Cortex/*analysis ; Chromatography, High Pressure Liquid ; Female ; Frontal Lobe/analysis ; Humans ; Male ; Middle Aged ; Neurons/metabolism/physiology ; Radioimmunoassay ; Receptors, Cell Surface/*analysis ; Receptors, Somatostatin ; Somatostatin/metabolism/physiology ; Temporal Lobe/analysis
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  • 10
    Publication Date: 1985-08-09
    Description: Fifteen independently isolated complementary DNA clones that contain T-cell receptor (TCR) V beta genes were sequenced and found to represent 11 different V beta genes. When compared with known sequences, 14 different V beta genes could be defined from a total of 25 complementary DNA's; 11 clones therefore involved repeated usage of previously identified V beta's. Based on these data, we calculate a maximum likelihood estimate of the number of expressed germline V beta genes to be 18 with an upper 95 percent confidence bound of 30 genes. Southern blot analysis has shown that most of these genes belong to single element subfamilies which show very limited interstrain polymorphism. The TCR beta-chain diversity appears to be generated from a limited V beta gene pool primarily by extensive variability at the variable-diversity-joining (V-D-J) junctional site, with no evidence for the involvement of somatic hypermutation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Behlke, M A -- Spinella, D G -- Chou, H S -- Sha, W -- Hartl, D L -- Loh, D Y -- GM07200/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1985 Aug 9;229(4713):566-70.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3875151" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Base Sequence ; Chromosome Mapping ; Cloning, Molecular ; Dna ; Gene Pool ; *Genetic Variation ; Humans ; Hybridomas ; Immunoglobulin Variable Region/genetics ; Mice ; Mice, Inbred BALB C/genetics ; Mice, Inbred C57BL/genetics ; Mice, Inbred Strains/genetics ; Receptors, Antigen, T-Cell/*genetics ; Species Specificity ; Spleen ; T-Lymphocytes ; Thymus Gland
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  • 11
    Publication Date: 1985-05-24
    Description: Most of the nuclear genome of warm-blooded vertebrates is a mosaic of very long (much greater than 200 kilobases) DNA segments, the isochores; these isochores are fairly homogeneous in base composition and belong to a small number of major classes distinguished by differences in guanine-cytosine (GC) content. The families of DNA molecules derived from such classes can be separated and used to study the genome distribution of any sequence which can be probed. This approach has revealed (i) that the distribution of genes, integrated viral sequences, and interspersed repeats is highly nonuniform in the genome, and (ii) that the base composition and ratio of CpG to GpC in both coding and noncoding sequences, as well as codon usage, mainly depend on the GC content of the isochores harboring the sequences. The compositional compartmentalization of the genome of warm-blooded vertebrates is discussed with respect to its evolutionary origin, its causes, and its effects on chromosome structure and function.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bernardi, G -- Olofsson, B -- Filipski, J -- Zerial, M -- Salinas, J -- Cuny, G -- Meunier-Rotival, M -- Rodier, F -- New York, N.Y. -- Science. 1985 May 24;228(4702):953-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/4001930" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Composition ; Base Sequence ; Biological Evolution ; Centrifugation, Density Gradient ; Chickens/*genetics ; Chromosome Banding ; Codon ; Cytosine/analysis ; DNA/analysis/*genetics ; DNA Replication ; DNA, Viral/genetics ; Gene Amplification ; *Genes ; Genes, Viral ; Guanine/analysis ; Humans ; Mammals/*genetics ; Mice/genetics ; Mutation ; Rabbits/genetics ; Recombination, Genetic ; Repetitive Sequences, Nucleic Acid ; Xenopus/*genetics
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  • 12
    Publication Date: 1985-08-30
    Description: A highly specific polyclonal rabbit antiserum directed against murine cachectin/tumor necrosis factor (TNF) was prepared. When BALB/c mice were passively immunized with the antiserum or with purified immune globulin, they were protected against the lethal effect of the endotoxin lipopolysaccharide produced by Escherichia coli. The prophylactic effect was dose-dependent and was most effective when the antiserum was administered prior to the injection of the endotoxin. Antiserum to cachectin/TNF did not mitigate the febrile response of endotoxin-treated animals, and very high doses of endotoxin could overcome the protective effect. The median lethal dose of endotoxin in mice pretreated with 50 microliters of the specific antiserum was approximately 2.5 times greater the median lethal dose for controls given nonimmune serum. The data suggest that cachectin/TNF is one of the principal mediators of the lethal effect of endotoxin.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beutler, B -- Milsark, I W -- Cerami, A C -- AM01314/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1985 Aug 30;229(4716):869-71.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3895437" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Endotoxins/*toxicity ; Escherichia coli ; Female ; Glycoproteins/immunology/*physiology ; Immune Sera ; Immunization, Passive ; Lethal Dose 50 ; Lipopolysaccharides/*toxicity ; Mice ; Mice, Inbred BALB C ; Proteins/immunology/*physiology ; Tumor Necrosis Factor-alpha
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  • 13
    Publication Date: 1985-08-09
    Description: The T-cell receptor beta-chain gene has a nuclease hypersensitive site in several kinds of T cells, which does not appear in B cells expressing immunoglobulins. Conversely, the kappa immunoglobulin gene shows a known hypersensitive site at its enhancer element in B cells, as expected, but this site is absent in T cells. As is the case with immunoglobulin genes, the T-cell receptor site lies within the gene, in the intron separating joining and constant region segments. These nuclease hypersensitive DNA configurations in the introns of active T-cell receptor and immunoglobulin genes may arise from control elements that share ancestry but have diverged to the extent that each normally acts only in lymphoid cells which use the proximal gene product.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bier, E -- Hashimoto, Y -- Greene, M I -- Maxam, A M -- AI 19901/AI/NIAID NIH HHS/ -- CA 22427/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1985 Aug 9;229(4713):528-34.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3927483" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/metabolism ; Base Sequence ; Binding Sites ; Cell Line ; Chromosome Mapping ; Collodion ; Deoxyribonuclease I/*metabolism ; Enhancer Elements, Genetic ; Gene Expression Regulation ; Humans ; Hybridomas ; Immunochemistry ; Immunoglobulin Fragments/*genetics ; Immunoglobulin Heavy Chains/genetics ; Immunoglobulin kappa-Chains/genetics ; Mice ; Receptors, Antigen, T-Cell/*genetics ; T-Lymphocytes/*metabolism ; Transcription, Genetic
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  • 14
    Publication Date: 1985-11-15
    Description: Heterokaryons provide a model system in which to examine how tissue-specific phenotypes arise and are maintained. When muscle cells are fused with nonmuscle cells, muscle gene expression is activated in the nonmuscle cell type. Gene expression was studied either at a single cell level with monoclonal antibodies or in mass cultures at a biochemical and molecular level. In all of the nonmuscle cell types tested, including representatives of different embryonic lineages, phenotypes, and developmental stages, muscle gene expression was induced. Differences among cell types in the kinetics, frequency, and gene dosage requirements for gene expression provide clues to the underlying regulatory mechanisms. These results show that the expression of genes in the nuclei of differentiated cells is remarkably plastic and susceptible to modulation by the cytoplasm. The isolation of the genes encoding the tissue-specific trans-acting regulators responsible for muscle gene activation should now be possible.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Blau, H M -- Pavlath, G K -- Hardeman, E C -- Chiu, C P -- Silberstein, L -- Webster, S G -- Miller, S C -- Webster, C -- GM07149/GM/NIGMS NIH HHS/ -- GM26717/GM/NIGMS NIH HHS/ -- HD18179/HD/NICHD NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1985 Nov 15;230(4727):758-66.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2414846" target="_blank"〉PubMed〈/a〉
    Keywords: Aged ; Animals ; Antibodies, Monoclonal ; *Cell Differentiation ; Cell Fusion ; Cell Nucleus/ultrastructure ; Epidermis/cytology ; Fetus/metabolism ; Fibroblasts/cytology ; Gene Expression Regulation ; Genes ; HeLa Cells/metabolism ; Humans ; Hybrid Cells/metabolism ; Keratins/physiology ; Kinetics ; Liver/cytology ; Mice ; Muscle Development ; Muscles/cytology ; Myosins/genetics ; Phenotype ; Transcription, Genetic ; Transcriptional Activation
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  • 15
    Publication Date: 1985-12-20
    Description: In certain strains of mice, bone marrow grafts from parental donors fail to grow in first-generation hybrid mice. This "hybrid resistance" of nonsensitized F1 hybrid mice to the engraftment of parental hematopoietic transplants contradicts the classical laws of transplantation and is dependent on a radioresistant but immunogenetically specific effector mechanism. Studies in a new in vitro model reveal that committed hematopoietic precursors of parental origin can be inactivated by direct contact with natural killer-like splenic effectors from F1 mice. The reaction requires genetically restricted recognition, since only parental competitors syngeneic to the target bone marrow cells partially reversed this inactivation. Models of this type may be useful in studying the possible role of natural resistance in bone marrow transplantation in humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bordignon, C -- Daley, J P -- Nakamura, I -- AM-13969/AM/NIADDK NIH HHS/ -- CA-12844/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1985 Dec 20;230(4732):1398-401.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3906897" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bone Marrow/immunology ; *Bone Marrow Transplantation ; Colony-Forming Units Assay ; Crosses, Genetic ; Hematopoietic Stem Cells/immunology ; *Histocompatibility ; Hybridization, Genetic ; Immunity, Innate ; Killer Cells, Natural/*immunology ; Mice ; Mice, Inbred C57BL ; Mice, Inbred Strains ; Models, Biological
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  • 16
    Publication Date: 1985-07-05
    Description: Preparation of bispecific antibodies by the chemical reassociation of monovalent fragments derived from monoclonal mouse immunoglobulin G1 is inefficient because of side reactions during reoxidation of the multiple disulfide bonds linking the heavy chains. These side reactions can be avoided by using specific dithiol complexing agents such as arsenite and effecting disulfide formation with a thiol activating agent such as 5,5'-dithiobis(2-nitrobenzoic acid). In this way bispecific antibodies were obtained in high yield and free of monospecific contaminants from monoclonal mouse immunoglobulin G1 fragments. The bispecific antibodies were used as agents for the selective immobilization of enzymes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brennan, M -- Davison, P F -- Paulus, H -- New York, N.Y. -- Science. 1985 Jul 5;229(4708):81-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3925553" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Antibodies, Monoclonal ; *Antibody Specificity ; Arsenic ; *Arsenites ; Avidin/immunology ; Disulfides ; Dithionitrobenzoic Acid ; Immunoglobulin Fab Fragments ; *Immunoglobulin G ; Luciferases/immunology ; Macromolecular Substances ; Mice ; *Sodium Compounds ; beta-Galactosidase/immunology
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  • 17
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-12-13
    Description: Stereoscopic pair images with parallel projection geometry are obtained by through-focusing along two inclined axes while recording two (summed and stacked) images with a microscope with a very shallow depth of field. The two stack images sample the same depth slice of translucent or reflective specimens. The method will work most conveniently with a tandem scanning microscope (a direct-view, confocal scanning optical microscope). This is a direct method for recording stereo images that can be used to the limit of resolution in optical microscopy. It demonstrates a previously unrealized advantage of confocal optical microscopy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boyde, A -- New York, N.Y. -- Science. 1985 Dec 13;230(4731):1270-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/4071051" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bone and Bones/anatomy & histology ; Cerebellum/anatomy & histology ; Mice ; Microscopy/*methods ; Rats ; Spinal Cord/anatomy & histology
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  • 18
    Publication Date: 1985-05-24
    Description: The in vitro splicing reactions of pre-messenger RNA (pre-mRNA) in a yeast extract were analyzed by glycerol gradient centrifugation. Labeled pre-mRNA appears in a 40S peak only if the pre-mRNA undergoes the first of the two partial splicing reactions. RNA analysis after extraction of glycerol gradient fractions shows that lariat-form intermediates, molecules that occur only in mRNA splicing, are found almost exclusively in this 40S complex. Another reaction intermediate, cut 5' exon RNA, can also be found concentrated in this complex. The complex is stable even in 400 mM KCl, although at this salt concentration, it sediments at 35S and is clearly distinguishable from 40S ribosomal subunits. This complex, termed a "spliceosome," is thought to contain components necessary for mRNA splicing; its existence can explain how separated exons on pre-mRNA are brought into contact.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brody, E -- Abelson, J -- New York, N.Y. -- Science. 1985 May 24;228(4702):963-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3890181" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/genetics ; Base Sequence ; Centrifugation, Density Gradient ; Mutation ; Nucleic Acid Conformation ; Nucleic Acid Precursors/*genetics/metabolism ; RNA Precursors ; *RNA Splicing ; RNA, Fungal/*genetics/metabolism ; RNA, Messenger/*genetics/metabolism ; Saccharomyces cerevisiae/*genetics/metabolism
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  • 19
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-06-28
    Description: The var1 gene specifies the only mitochondrial ribosomal protein known to be encoded by yeast mitochondrial DNA. The gene is unusual in that its base composition is nearly 90 percent adenine plus thymine. It and its expression product show a strain-dependent variation in size of up to 7 percent; this variation does not detectably interfere with function. Furthermore, var1 is an expandable gene that participates in a novel recombinational event resembling gene conversion whereby shorter alleles are preferentially converted to longer ones. The remarkable features of var1 indicate that it may have evolved by a mechanism analogous to exon shuffling, although no introns are actually present.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Butow, R A -- Perlman, P S -- Grossman, L I -- GM-22525/GM/NIGMS NIH HHS/ -- GM-26546/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1985 Jun 28;228(4707):1496-501.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2990030" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Base Sequence ; Biological Evolution ; DNA Restriction Enzymes/metabolism ; DNA, Mitochondrial/*analysis ; *Genes, Fungal ; Mutation ; Neurospora/*genetics ; Polymorphism, Genetic
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  • 20
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-03-08
    Description: The polypeptide interleukin-1 mediates many host responses to infection and inflammation. A method was developed for studying interleukin-1 levels in human plasma from febrile patients. Interleukin-1 activity was also consistently found in plasma samples from women in the luteal phase of their menstrual cycle. This activity was neutralized by a specific antiserum to human interleukin-1 and was low in plasma from healthy men and preovulatory women. Thus interleukin-1 appears to have a role in normal physiological conditions as well as in disease states.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cannon, J G -- Dinarello, C A -- AI 15614/AI/NIAID NIH HHS/ -- F32 AI 06951/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1985 Mar 8;227(4691):1247-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3871966" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Body Temperature ; Female ; Fever/physiopathology ; Follicular Phase ; Humans ; Interleukin-1/*analysis/physiology ; *Luteal Phase ; Male ; Mice ; Ovulation
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  • 21
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-09-06
    Description: Tissue factor (tissue thromboplastin, coagulation factor III), a protein component of cell membranes, is an essential cofactor for factor VII-dependent initiation of blood coagulation. Since no tissue factor-deficient condition has been described, it is one of only a few proteins of the coagulation system for which the pattern of inheritance has not been ascertained. Because of the species-specificity of tissue factor activity and the availability of a very sensitive chromogenic assay, it was possible in the present study to use somatic cell hybrids to assign the chromosomal location of the tissue factor structural gene (F3) to human chromosome 1 (1pter----1p21).〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carson, S D -- Henry, W M -- Shows, T B -- GM-20454/GM/NIGMS NIH HHS/ -- HD-05196/HD/NICHD NIH HHS/ -- HL-31408/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1985 Sep 6;229(4717):991-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/4023720" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Chromosomes, Human, 1-3 ; Genes ; Humans ; Hybrid Cells ; Mice ; Thromboplastin/*genetics ; Translocation, Genetic
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  • 22
    Publication Date: 1985-09-27
    Description: The reported incidence of acquired immune deficiency syndrome (AIDS) continues to increase in countries throughout the world. On the basis of a polynomial model for extrapolation, the cumulative number of cases diagnosed and reported since 1981 in the United States is expected to double during the next year with over 12,000 additional cases projected to be diagnosed by July 1986. The annual incidence rates for single (never-married) men in Manhattan and San Francisco, intravenous drug users in New York City and New Jersey, and persons with hemophilia A ranged from 261 to 350 per 100,000 population during 1984. For single men aged 25 to 44 years in Manhattan and San Francisco, AIDS was the leading cause of premature mortality in 1984 as measured by years of potential life lost. Infection with HTLV-III/LAV is considerably more common than reported AIDS in high-risk populations and can persist at least for several years, so the presence of specific antibody should be considered presumptive evidence of current infection. The screening of donated blood and plasma for antibody to HTLV-III/LAV and use of safer clotting factor concentrates should greatly reduce HTLV-III/LAV transmission through blood and blood products. Most HTLV-III/LAV infections occur through sexual transmission, use of contaminated needles, and as a result of infected mothers passing the virus to newborns. Continued research commitment is needed to develop an HTLV-III/LAV vaccine and therapy for this infection. In the interim, widespread community efforts are needed to minimize transmission.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Curran, J W -- Morgan, W M -- Hardy, A M -- Jaffe, H W -- Darrow, W W -- Dowdle, W R -- New York, N.Y. -- Science. 1985 Sep 27;229(4720):1352-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2994217" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency ; Syndrome/complications/*epidemiology/microbiology/mortality/prevention & ; control/transmission ; Adult ; Antibodies, Viral/immunology ; Blood Donors ; California ; Child ; Deltaretrovirus/immunology ; Female ; Hemophilia A/complications ; Homosexuality ; Humans ; Infant ; Infant, Newborn ; Male ; New York City ; Pregnancy ; Retroviridae Infections/epidemiology ; Risk ; Sarcoma, Kaposi/complications ; Substance-Related Disorders/complications ; United States
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  • 23
    Publication Date: 1985-04-12
    Description: Activated versions of ras genes have been found in various types of malignant tumors. The normal versions of these genes are found in organisms as diverse as mammals and yeasts. Yeast cells that lack their functional ras genes, RASSC-1 and RASSC-2, are ordinarily nonviable. They have now been shown to remain viable if they carry a mammalian rasH gene. In addition, yeast-mammalian hybrid genes and a deletion mutant yeast RASSC-1 gene were shown to induce morphologic transformation of mouse NIH 3T3 cells when the genes had a point mutation analogous to one that increases the transforming activity of mammalian ras genes. The results establish the functional relevance of the yeast system to the genetics and biochemistry of cellular transformation induced by mammalian ras genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉DeFeo-Jones, D -- Tatchell, K -- Robinson, L C -- Sigal, I S -- Vass, W C -- Lowy, D R -- Scolnick, E M -- CA37702/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1985 Apr 12;228(4696):179-84.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3883495" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Transformation, Neoplastic/metabolism ; DNA, Recombinant/metabolism ; Drosophila/genetics ; Mice ; Neoplasm Proteins/*genetics/metabolism ; Nucleic Acid Hybridization ; *Oncogenes ; Plasmids ; Saccharomyces cerevisiae/*genetics
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  • 24
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-05-10
    Description: Proto-onc genes are normal cellular genes that are related to the transforming (onc) genes of retroviruses. Because of this relationship these genes are now widely believed to be potential cancer genes. In some tumors, proto-onc genes are mutated or expressed more than in normal cells. Under these conditions, proto-onc genes are hypothesized to be active cancer genes in one of two possible ways: The one gene-one cancer hypothesis suggests that one activated proto-onc gene is sufficient to cause cancer. The multigene-one cancer hypothesis suggests that an activated proto-onc gene is a necessary but not a sufficient cause of cancer. However, mutated or transcriptionally activated proto-onc genes are not consistently associated with the tumors in which they are occasionally found and do not transform primary cells. Further, no set of an activated proto-onc gene and a complementary cancer gene with transforming function has yet been isolated from a tumor. Thus, there is still no proof that activated proto-onc genes are sufficient or even necessary to cause cancer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Duesberg, P H -- CA 11426/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1985 May 10;228(4700):669-77.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3992240" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Transformation, Neoplastic/metabolism ; Chickens ; DNA, Neoplasm/genetics ; Genes, Viral ; Humans ; Kirsten murine sarcoma virus/genetics ; Lymphoma/genetics ; Melanoma/genetics ; Mice ; Mutation ; Neoplasms/etiology/*genetics ; *Oncogenes ; Plasmacytoma/genetics ; Rats ; Retroviridae/genetics ; Sarcoma, Experimental/genetics ; Transduction, Genetic ; Translocation, Genetic ; Tumor Virus Infections/genetics
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  • 25
    Publication Date: 1985-10-25
    Description: The retroviral transmembrane envelope protein p15E is immunosuppressive in that it inhibits immune responses of lymphocytes, monocytes, and macrophages. A region of p15E has been conserved among murine and feline retroviruses; a homologous region is also found in the transmembrane envelope proteins of the human retroviruses HTLV-I and HTLV-II and in a putative envelope protein encoded by an endogenous C-type human retroviral DNA. A peptide (CKS-17) was synthesized to correspond to this region of homology and was examined for its effects on lymphocyte proliferation. CKS-17 inhibited the proliferation of an interleukin-2-dependent murine cytotoxic T-cell line as well as alloantigen-stimulated proliferation of murine and human lymphocytes. Four other peptides, representing different regions of virus proteins, were inactive. These results suggest that the immunosuppressive portion of retroviral transmembrane envelope proteins may reside, at least in part, in a-conserved sequence represented by the CKS-17 peptide.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cianciolo, G J -- Copeland, T D -- Oroszlan, S -- Snyderman, R -- P01-CA29589-02/CA/NCI NIH HHS/ -- R23-CA34671-02/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1985 Oct 25;230(4724):453-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2996136" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cell Line ; Deltaretrovirus/genetics ; Humans ; Leukemia Virus, Feline/genetics ; Leukemia Virus, Murine/genetics ; Lymphocyte Activation/*drug effects ; Lymphocyte Culture Test, Mixed ; Lymphocytes/drug effects ; Mice ; Mice, Inbred BALB C ; Peptides/*pharmacology ; Retroviridae/*genetics ; Spleen/cytology ; Viral Envelope Proteins/genetics/*pharmacology
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  • 26
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-03-15
    Description: Antiviral compounds have been developed for use in chemoprophylaxis and chemotherapy of a variety of infections in humans, including those caused by influenza viruses, respiratory syncytial virus, and herpesviruses. The efficacy of several of these compounds has been demonstrated in rigorously controlled trials. Advances in molecular virology have led to the identification of biochemically defined, virus-specific functions that serve as appropriate targets for the future development of antiviral compounds. Clinical investigators and practicing physicians are now confronting questions previously raised with the use of antibacterial antibiotics. These questions concern appropriate routes of administration for antiviral compounds, optimal dosage regimens, risks of long-term prophylaxis, and the emergence of resistant organisms.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dolin, R -- N0I AI 02653/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1985 Mar 15;227(4692):1296-303.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2983421" target="_blank"〉PubMed〈/a〉
    Keywords: Acyclovir/therapeutic use ; Adult ; Aged ; Amantadine/therapeutic use ; Antiviral Agents/pharmacology/*therapeutic use ; Chickenpox/drug therapy ; Clinical Trials as Topic ; Cytomegalovirus/drug effects ; Encephalitis/drug therapy ; Foscarnet ; Guanosine Triphosphate/analogs & derivatives/therapeutic use ; Herpes Simplex/drug therapy ; Herpes Zoster/drug therapy ; Herpesviridae Infections/drug therapy ; Humans ; Infant, Newborn ; Infant, Newborn, Diseases/drug therapy ; Influenza A virus/drug effects ; Influenza, Human/drug therapy/prevention & control ; Phosphonoacetic Acid/analogs & derivatives/therapeutic use ; Respiratory Tract Infections/drug therapy ; Ribavirin/therapeutic use ; Rimantadine/therapeutic use ; Vidarabine/therapeutic use ; Virus Diseases/*drug therapy/prevention & control
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  • 27
    Publication Date: 1985-12-20
    Description: A retroviral expression vector (N2) containing the selectable gene, neoR, has been used to determine the optimal conditions for infecting murine hematopoietic progenitor cells at high efficiency. After infected bone marrow cells were introduced into lethally irradiated mice, the presence, stability, and expression of the vector DNA sequences were analyzed either in individual spleen foci 10 days later or in the blood, bone marrow, and spleens of mice 4 months later. When bone marrow cells were cultured in medium containing virus with titers of more than 10(6) colony-forming units per milliliter in the presence of purified murine interleukin-3, more than 85 percent of the resulting foci contained vector DNA. This proviral vector DNA was intact. Efficient expression of the neoR gene was demonstrated in most of the DNA-positive foci examined. The spleens of reconstituted animals (over a long term) contained intact "vector DNA" and the blood and bone marrow expressed the neoR gene in some animals. Thus, a retroviral vector can be used to introduce intact exogenous DNA sequences into hematopoietic stem cells with high efficiency and with substantial expression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Eglitis, M A -- Kantoff, P -- Gilboa, E -- Anderson, W F -- New York, N.Y. -- Science. 1985 Dec 20;230(4732):1395-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2999985" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Bone Marrow/microbiology ; Cells, Cultured ; DNA Transposable Elements ; DNA, Viral/genetics ; *Genes, Viral ; *Genetic Vectors ; Mice ; Moloney murine leukemia virus/*genetics ; Spleen/microbiology ; *Transcription, Genetic
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  • 28
    Publication Date: 1985-02-08
    Description: Phenylmercury absorbed through the skin from contaminated diapers affected urinary excretion in infants in Buenos Aires. The effects were reversible and quantitatively related to the concentration of urinary mercury. Excretion of gamma-glutamyl transpeptidase, an enzyme in the brush borders of renal tubular cells, increased in a dose-dependent manner when mercury excretion exceeded a "threshold" value. Urine volume also increased but at a higher threshold with respect to mercury. The results support the threshold concept of the systemic toxicity of metals. gamma-Glutamyl transpeptidase is a useful and sensitive marker for preclinical effects of toxic metals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gotelli, C A -- Astolfi, E -- Cox, C -- Cernichiari, E -- Clarkson, T W -- ES01247/ES/NIEHS NIH HHS/ -- ES01248/ES/NIEHS NIH HHS/ -- New York, N.Y. -- Science. 1985 Feb 8;227(4687):638-40.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2857500" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Animals ; Argentina ; Creatinine/urine ; Dose-Response Relationship, Drug ; Fungicides, Industrial/*pharmacology ; Humans ; Infant ; Mercury/urine ; Mercury Poisoning/etiology ; Phenylmercury Compounds/*pharmacology ; Proteinuria/metabolism ; Urodynamics/drug effects ; gamma-Glutamyltransferase/urine
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  • 29
    Publication Date: 1985-11-29
    Description: The transfer of the human gene for hypoxanthine phosphoribosyltransferase (HPRT) into human bone marrow cells was accomplished by use of a retroviral vector. The cells were infected in vitro with a replication-incompetent murine retroviral vector that carried and expressed a mutant HPRT complementary DNA. The infected cells were superinfected with a helper virus and maintained in long-term culture. The production of progeny HPRT virus by the bone marrow cells was demonstrated with a colony formation assay on cultured HPRT-deficient, ouabain-resistant murine fibroblasts. Hematopoietic progenitor cells able to form colonies of granulocytes or macrophages (or both) in semisolid medium in the presence of colony stimulating factor were present in the nonadherent cell population. Colony forming units cloned in agar and subsequently cultured in liquid medium produced progeny HPRT virus, indicating infection of this class of hematopoietic progenitor cell.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gruber, H E -- Finley, K D -- Hershberg, R M -- Katzman, S S -- Laikind, P K -- Seegmiller, J E -- Friedmann, T -- Yee, J K -- Jolly, D J -- AM 13622/AM/NIADDK NIH HHS/ -- GM 28223/GM/NIGMS NIH HHS/ -- HD20034/HD/NICHD NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1985 Nov 29;230(4729):1057-61.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3864246" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Gene Expression Regulation ; *Genetic Engineering ; Genetic Vectors ; Hematopoietic Stem Cells/*physiology ; Humans ; Hypoxanthine Phosphoribosyltransferase/*genetics ; Mice ; Retroviridae/*genetics ; Transfection
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  • 30
    Publication Date: 1985-11-01
    Description: The 21-base pair repeat elements of the SV40 promoter contain six tandem copies of the GGGCGG hexanucleotide (GC-box), each of which can bind, with varying affinity, to the cellular transcription factor, Sp1. In vitro SV40 early RNA synthesis is mediated by interaction of Sp1 with GC-boxes I, II, and III, whereas transcription in the late direction is mediated by binding to GC-boxes III, V, and VI.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gidoni, D -- Kadonaga, J T -- Barrera-Saldana, H -- Takahashi, K -- Chambon, P -- Tjian, R -- New York, N.Y. -- Science. 1985 Nov 1;230(4725):511-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2996137" target="_blank"〉PubMed〈/a〉
    Keywords: Autoradiography ; Base Sequence ; Binding Sites ; DNA-Binding Proteins/*metabolism ; Deoxyribonuclease I/metabolism ; Electrophoresis, Polyacrylamide Gel ; Gene Expression Regulation ; Mutation ; Pregnancy Proteins/*metabolism ; RNA, Messenger/analysis ; RNA, Viral/biosynthesis ; Simian virus 40/*genetics ; Sp1 Transcription Factor ; Templates, Genetic ; Transcription Factors/*metabolism ; *Transcription, Genetic
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  • 31
    Publication Date: 1985-05-10
    Description: In humans, herpes simplex virus causes a primary infection and then often a latent ganglionic infection that persists for life. Because these latent infections can recur periodically, vaccines are needed that can protect against both primary and latent herpes simplex infections. Infectious vaccinia virus recombinants that contain the herpes simplex virus type 1 (HSV-1) glycoprotein D gene under control of defined early or late vaccinia virus promoters were constructed. Tissue culture cells infected with these recombinant viruses synthesized a glycosylated protein that had the same mass (60,000 daltons) as the glycoprotein D produced by HSV-1. Immunization of mice with one of these recombinant viruses by intradermal, subcutaneous, or intraperitoneal routes resulted in the production of antibodies that neutralized HSV-1 and protected the mice against subsequent lethal challenge with HSV-1 or HSV-2. Immunization with the recombinant virus also protected the majority of the mice against the development of a latent HSV-1 infection of the trigeminal ganglia. This is the first demonstration that a genetically engineered vaccine can prevent the development of latency.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cremer, K J -- Mackett, M -- Wohlenberg, C -- Notkins, A L -- Moss, B -- New York, N.Y. -- Science. 1985 May 10;228(4700):737-40.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2986288" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Viral/immunology ; *Genetic Engineering ; Herpes Simplex/immunology/*prevention & control ; Humans ; Mice ; Mice, Inbred BALB C ; Simplexvirus/genetics/immunology ; Vaccines ; Vaccinia virus/*genetics ; *Viral Envelope Proteins ; Viral Proteins/*genetics/immunology
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  • 32
    Publication Date: 1985-09-27
    Description: The innervation of acini and ducts of eccrine sweat glands by immunoreactive, vasoactive intestinal peptide-containing nerve fibers was sharply reduced in seven patients with cystic fibrosis compared to eight normal subjects. The decrease in innervation by this neuropeptide, which has been shown to promote blood flow and the movement of water and chloride across epithelial surfaces in other systems, may be a basic mechanism for the decreased water content and relative impermeability of the epithelium to chloride and other ions that characterize cystic fibrosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Heinz-Erian, P -- Dey, R D -- Flux, M -- Said, S I -- HL30450/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1985 Sep 27;229(4720):1407-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/4035357" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Aged ; Chlorides/metabolism ; Cystic Fibrosis/*physiopathology ; Female ; Humans ; Male ; Middle Aged ; Sweat Glands/*innervation/physiopathology ; Vasoactive Intestinal Peptide/*physiology
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  • 33
    Publication Date: 1985-03-01
    Description: A human complementary DNA clone specific for the alpha-chain of the T-cell receptor and a panel of rodent X human somatic cell hybrids were used to map the alpha-chain gene to human chromosome 14 in a region proximal to the immunoglobulin heavy chain locus. Analysis by means of in situ hybridization of human metaphase chromosomes served to further localize the alpha-chain gene to region 14q11q12, which is consistently involved in translocations and inversions detectable in human T-cell leukemias and lymphomas. Thus, the locus for the alpha-chain T-cell receptor may participate in oncogene activation in T-cell tumors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Croce, C M -- Isobe, M -- Palumbo, A -- Puck, J -- Ming, J -- Tweardy, D -- Erikson, J -- Davis, M -- Rovera, G -- CA 10 815/CA/NCI NIH HHS/ -- CA16685/CA/NCI NIH HHS/ -- CA215875/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1985 Mar 1;227(4690):1044-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3919442" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Chromosome Mapping ; Chromosomes, Human, 13-15 ; DNA/genetics ; Genes ; Humans ; Hybrid Cells/metabolism ; Immunoglobulin Heavy Chains/*genetics ; Immunoglobulin alpha-Chains/*genetics ; Leukemia/genetics ; Lymphoma/genetics ; Mice ; Nucleic Acid Hybridization ; Receptors, Antigen, T-Cell/*genetics ; T-Lymphocytes ; Translocation, Genetic
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  • 34
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-05-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Culliton, B J -- New York, N.Y. -- Science. 1985 May 3;228(4699):561-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3856951" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Deaminase/deficiency ; Advisory Committees ; Animal Experimentation ; Animals ; Dogs ; Ethics Committees, Research ; Federal Government ; Genetic Diseases, Inborn ; *Genetic Engineering ; *Government Regulation ; Humans ; Mice ; National Institutes of Health (U.S.) ; United States ; Recombinant DNA Advisory Committee (RAC), has revised its draft guidelines, ; published in the 22 January 1985 Federal Register, for researchers submitting ; protocols for human gene therapy experiments. The major revisions in the "Points ; to Consider" are the elimination of a required response in the protocol to ; complex social and ethical questions and a greater flexibility in requirements ; for animal testing prior to human experimentation. Other modifications include ; provisions for public review of protocols, a requirement of patient agreement to ; long term follow-up and autopsy, and the limiting of review to only somatic cell ; therapy for the present. The stages of protocol review will involve local ethics ; and biosafety committees, then the Working Group, the full RAC, and finally the ; director of NIH.
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  • 35
    Publication Date: 1985-02-01
    Description: Groups of 50 male and 50 female B6C3F1 mice were exposed 6 hours per day, 5 days per week, for 60 to 61 weeks to air containing 0, 625, or 1250 parts per million 1,3-butadiene. These concentrations are somewhat below and slightly above the Occupational Safety and Health Administration standard of 1000 parts per million for butadiene. The study was designed for 104-week exposures but had to be ended early due to cancer-related mortality in both sexes at both exposure concentrations. There were early induction and significantly increased incidences of hemangiosarcomas of the heart, malignant lymphomas, alveolar-bronchiolar neoplasms, squamous cell neoplasms of the forestomach in males and females and acinar cell carcinomas of the mammary gland, granulosa cell neoplasms of the ovary, and hepatocellular neoplasms in females. Current workplace standards for exposure to butadiene should be reexamined in view of these findings.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huff, J E -- Melnick, R L -- Solleveld, H A -- Haseman, J K -- Powers, M -- Miller, R A -- New York, N.Y. -- Science. 1985 Feb 1;227(4686):548-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3966163" target="_blank"〉PubMed〈/a〉
    Keywords: Air Pollutants, Occupational/*toxicity ; Animals ; Body Weight/drug effects ; Brain Neoplasms/chemically induced ; Butadienes/*toxicity ; Female ; Heart Neoplasms/chemically induced ; Inflammation ; Liver Neoplasms/chemically induced ; Lung Neoplasms/chemically induced ; Lymphoma/chemically induced ; Male ; Mammary Glands, Animal ; Mice ; Mice, Inbred Strains ; Neoplasms/*chemically induced ; Nose Diseases/chemically induced ; Ovarian Neoplasms/chemically induced ; Stomach Neoplasms/chemically induced
    Print ISSN: 0036-8075
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  • 36
    Publication Date: 1985-01-18
    Description: Enhancer sequences are regulatory regions that greatly increase transcription of certain eukaryotic genes. An immunoglobulin heavy-chain variable gene segment is moved from a region lacking enhancer activity to a position adjacent to the known heavy-chain enhancer early in B-cell maturation. In lymphoid cells, the heavy-chain and SV40 enhancers bind a common factor essential for enhancer function. In contrast, fibroblast cells contain a functionally distinct factor that is used by the SV40 but not by the heavy-chain enhancer. The existence of different factors in these cells may explain the previously described lymphoid cell specificity of the heavy-chain enhancer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mercola, M -- Goverman, J -- Mirell, C -- Calame, K -- GM29361/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1985 Jan 18;227(4684):266-70.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3917575" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibody Formation ; B-Lymphocytes/immunology ; Base Sequence ; Cell Line ; *Enhancer Elements, Genetic ; Fibroblasts/immunology ; *Genes, Regulator ; Humans ; Immunoglobulin Constant Regions/genetics ; Immunoglobulin Heavy Chains/*genetics ; Immunoglobulin Variable Region/genetics ; Mice ; Transcription, Genetic
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  • 37
    Publication Date: 1985-11-29
    Description: Phototransduction is the process by which light-stimulated photoreceptor cells of the visual system send electrical signals to the nervous system. Many of the steps that follow the initial event in phototransduction, absorption of light by rhodopsin, are ill-defined. The fruitfly, Drosophila melanogaster, provides a means to dissect phototransduction genetically. Mutations such as transient receptor potential (trp) affect intermediate steps in phototransduction. In order to facilitate molecular studies of phototransduction, the trp gene was isolated and its identity was confirmed by complementing the mutant trpCM allele of the trp gene by P-element mediated germline transformation of a 7.1-kilobase DNA fragment. Expression of the trp gene begins late in pupal development and appears to be limited to the eyes and ocelli.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Montell, C -- Jones, K -- Hafen, E -- Rubin, G -- New York, N.Y. -- Science. 1985 Nov 29;230(4729):1040-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3933112" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; DNA/genetics ; Drosophila melanogaster/*genetics/physiology ; Gene Expression Regulation ; Genes ; Mutation ; Ocular Physiological Phenomena ; RNA, Messenger/genetics ; *Vision, Ocular
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  • 38
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-07-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1985 Jul 19;229(4710):257-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3925554" target="_blank"〉PubMed〈/a〉
    Keywords: 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine ; Animals ; Haplorhini ; Humans ; Mice ; Parkinson Disease/*etiology ; Parkinson Disease, Secondary/chemically induced ; Pesticides/adverse effects ; Pyridines/adverse effects/metabolism ; Quebec ; Rats ; Substantia Nigra/drug effects
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  • 39
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-06-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1985 Jun 7;228(4704):1187.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/4039848" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Evolution ; Mice ; Mice, Inbred Strains/*genetics ; Species Specificity ; Time Factors
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  • 40
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-05-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1985 May 3;228(4699):571.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3983640" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; *Biological Clocks ; DNA/metabolism ; Humans ; Mice ; Rats
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  • 41
    Publication Date: 1985-05-10
    Description: Immunoglobulin K genes are constructed during lymphocyte differentiation by the joining of two DNA elements, VK and JK, to form both a VKJK coding unit and a reciprocal recombination product. The two products formed in single VK-to-JK joining events can be directly isolated through the use of a retrovirally introduced recombination substrate. The structural analysis of a number of recombinants and the derivation of secondary recombination products define some of the basic features of the mechanism of immunoglobulin gene assembly.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewis, S -- Gifford, A -- Baltimore, D -- New York, N.Y. -- Science. 1985 May 10;228(4700):677-85.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3158075" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacteriophage lambda/genetics ; Base Sequence ; DNA/*genetics ; *Genes, MHC Class II ; Immunoglobulin J-Chains/genetics ; Immunoglobulin Light Chains/*genetics ; Immunoglobulin Variable Region/genetics ; Immunoglobulin kappa-Chains/*genetics ; Mice ; *Recombination, Genetic
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  • 42
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-11-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Old, L J -- New York, N.Y. -- Science. 1985 Nov 8;230(4726):630-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2413547" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; BCG Vaccine/therapeutic use ; Drug Synergism ; *Glycoproteins/isolation & purification/therapeutic use ; Humans ; Interferons/therapeutic use ; Macrophages/physiology ; Mice ; Neoplasms/therapy ; Neoplasms, Experimental/therapy ; Rabbits ; Tumor Necrosis Factor-alpha
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  • 43
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-03-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Olson, R E -- New York, N.Y. -- Science. 1985 Mar 8;227(4691):1154.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3975606" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Aged ; Child ; Child, Preschool ; Coronary Disease/etiology/prevention & control ; Dietary Fats/*adverse effects ; Female ; Humans ; Male ; Middle Aged
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  • 44
    Publication Date: 1985-09-20
    Description: A repeated 82 base pair sequence in genomic DNA of the rat was previously proposed as being a control element governing brain (neuron) specific genetic expression. This intronic sequence, termed the brain "identifier" (ID), is complementary to small RNA species localized in brain cytoplasm, and it was thought to be represented specifically in RNA produced by brain nuclei in vitro. The RNA blot analyses of total nuclear and polyadenylated heterogeneous nuclear RNA described in the present report show that this ID sequence is also present in the liver and kidney in abundances similar to those in the brain. This repeated sequence is not, therefore, restricted to transcripts produced in the brain as suggested from previous transcriptional "runoff" experiments. Measurements on rat and mouse nuclear RNA indicate that the abundance of ID sequence transcript is roughly proportional to the number of copies of this repeat in the respective genomes. This suggests a rather random genomic location and transcription of this sequence. From these results it seems improbable that the ID sequence functions as a transcriptional-level control element in genes expressed specifically in the brain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Owens, G P -- Chaudhari, N -- Hahn, W E -- NS10813/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1985 Sep 20;229(4719):1263-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2412293" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; *Brain Chemistry ; Cloning, Molecular ; *Genes ; Kidney/analysis ; Liver/analysis ; Mice ; Neural Crest/analysis ; Nucleic Acid Hybridization ; RNA/*analysis ; Rats ; Transcription, Genetic
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  • 45
    Publication Date: 1985-01-25
    Description: Vesicular stomatitis virus (VSV) causes a contagious disease of horses, cattle, and pigs. When DNA copies of messenger RNA's for the G or N proteins of VSV were linked to a vaccinia virus promoter and inserted into the vaccinia genome, the recombinants retained infectivity and synthesized VSV polypeptides. After intradermal vaccination with live recombinant virus expressing the G protein, mice produced VSV-neutralizing antibodies and were protected against lethal encephalitis upon intravenous challenge with VSV. In cattle, the degree of protection against intradermalingually injected VSV was correlated with the level of neutralizing antibody produced following vaccination.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mackett, M -- Yilma, T -- Rose, J K -- Moss, B -- New York, N.Y. -- Science. 1985 Jan 25;227(4685):433-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2981435" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Viral/analysis ; Cattle ; Cattle Diseases/prevention & control ; *Cloning, Molecular ; DNA, Recombinant ; Genes, Viral ; *Membrane Glycoproteins ; Mice ; Operon ; Stomatitis/prevention & control/veterinary ; Vaccination/veterinary ; Vaccinia virus/*genetics ; Vesicular stomatitis Indiana virus/genetics/*immunology ; *Viral Envelope Proteins ; Viral Proteins/biosynthesis/*immunology ; Viral Vaccines/*immunology ; Virus Diseases/prevention & control/*veterinary
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  • 46
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-04-19
    Description: The dendritic arbors of sympathetic neurons in different species of mammals vary systematically: the superior cervical ganglion cells of smaller mammals have fewer and less extensive dendrites than the homologous neurons in larger animals. This difference in dendritic complexity according to body size is reflected in the convergence of ganglionic innervation; the ganglion cells of progressively larger mammals are innervated by progressively more axons. These relations have implications both for the function of homologous neural systems in animals of different sizes and for the regulation of neuronal geometry during development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Purves, D -- Lichtman, J W -- NS 11699/NS/NINDS NIH HHS/ -- NS 18629/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1985 Apr 19;228(4697):298-302.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3983631" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/ultrastructure ; Body Constitution ; Cricetinae ; Dendrites/ultrastructure ; Ganglia, Spinal/ultrastructure ; Guinea Pigs ; Mice ; Neurons/physiology/*ultrastructure ; Rabbits ; Rats ; Species Specificity
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  • 47
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-09-20
    Description: During normal mouse development the relative amounts of two types of U1 small nuclear RNA's (U1 RNA) change significantly. Fetal tissues have comparable levels of the two major types of mouse U1 RNA's, mU1a and mU1b, whereas most differentiated adult tissues contain only mU1a RNA's. Those adult tissues that also accumulate detectable amounts of embryonic (mU1b) RNA's (for example, testis, spleen, and thymus) contain a significant proportion of stem cells capable of further differentiation. Several strains of mice express minor sequence variants of U1 RNA's that are subject to the same developmental controls as the major types of adult and embryonic U1 RNA. The differential accumulation of embryonic U1 RNA's may influence the pattern of gene expression during early development and differentiation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lund, E -- Kahan, B -- Dahlberg, J E -- CA 33453/CA/NCI NIH HHS/ -- GM 30220/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1985 Sep 20;229(4719):1271-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2412294" target="_blank"〉PubMed〈/a〉
    Keywords: Aging ; Animals ; Base Sequence ; Brain/*growth & development/metabolism ; Cell Line ; Embryonic and Fetal Development ; Liver/*growth & development/metabolism ; Male ; Mice ; Mice, Inbred ICR ; Neoplastic Stem Cells/metabolism ; Nucleic Acid Hybridization ; RNA/*biosynthesis ; RNA, Messenger/biosynthesis ; RNA, Small Nuclear ; Testis/*growth & development/metabolism
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  • 48
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-07-19
    Description: Multiple copies of a gene that encodes human U1 small nuclear RNA were introduced into mouse C127 cells with bovine papilloma virus as the vector. For some recombinant constructions, the human U1 gene copies were maintained extrachromosomally on the viral episome in an unrearranged fashion. The relative abundance of human and mouse U1 small nuclear RNA varied from one cell line to another, but in some lines human U1 RNA accounted for as much as one-third of the total U1. Regardless of the level of human U1 expression, the total amount of U1 RNA (both mouse and human) in each cell line was nearly the same relative to endogenous mouse 5S or U2 RNA. This result was obtained whether measurements were made of total cellular U1 or of only the U1 in small nuclear ribonucleoprotein particles that could be precipitated with antibody directed against the Sm antigen. The data suggest that the multigene families encoding mammalian U1 RNA are subject to some form of dosage compensation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mangin, M -- Ares, M Jr -- Weiner, A M -- GM09148/GM/NIGMS NIH HHS/ -- GM31073/GM/NIGMS NIH HHS/ -- GM31335/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1985 Jul 19;229(4710):272-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2409601" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autoradiography ; Bovine papillomavirus 1/genetics ; Cell Line ; DNA, Recombinant ; *Dosage Compensation, Genetic ; Electrophoresis, Polyacrylamide Gel ; Genetic Vectors ; Humans ; Mice ; Plasmids ; RNA/*genetics/isolation & purification ; RNA, Small Nuclear ; Xenopus
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  • 49
    Publication Date: 1985-05-24
    Description: Mouse lymphocytes incubated on cryostat-cut sections of lymphoid organs (lymph nodes and Peyer's patches) specifically adhere to the endothelium of high endothelial venules (HEV), the specialized blood vessels to which recirculating lymphocytes attach as they migrate from the blood into the parenchyma of the lymphoid organs. Treatment of sections with sialidase eliminated the binding of lymphocytes to peripheral lymph node HEV, had no effect on binding to Peyer's patch HEV, and had an intermediate effect on mesenteric lymph node HEV. These results suggest that sialic acid on endothelial cells may be an organ-specific recognition determinant for lymphocyte attachment.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rosen, S D -- Singer, M S -- Yednock, T A -- Stoolman, L M -- 1K08CA00959/CA/NCI NIH HHS/ -- GM235472/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1985 May 24;228(4702):1005-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/4001928" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Adhesion ; Endothelium/*physiology ; Lymph Nodes/*blood supply ; Lymphocytes/*physiology ; Mice ; Neuraminidase/pharmacology ; Organ Specificity ; Peyer's Patches/*blood supply ; Sialic Acids/*physiology ; Venules
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  • 50
    Publication Date: 1985-08-02
    Description: The toxicity of macrocyclic pyrrolizidine alkaloids in the livers of man and animals has been attributed to the formation of reactive pyrroles from dihydropyrrolizines. Now a novel metabolite, trans-4-hydroxy-2-hexenal, has been isolated from the macrocyclic pyrrolizidine alkaloid senecionine, in an in vitro hepatic microsomal system. Other alkenals such as trans-4-hydroxy-2-nonenal have previously been isolated from microsomal systems when treated with halogenated hydrocarbons or subjected to lipid peroxidation. The in vivo pathology caused by trans-4-hydroxy-2-hexenal appears to be identical to that previously attributed to reactive pyrroles. There are similarities between the toxic effects of this alkenal and those of centrilobular hepatotoxins such as CCl4 and other alkenals formed during lipid peroxidation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Segall, H J -- Wilson, D W -- Dallas, J L -- Haddon, W F -- ES-03343/ES/NIEHS NIH HHS/ -- New York, N.Y. -- Science. 1985 Aug 2;229(4712):472-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/4012327" target="_blank"〉PubMed〈/a〉
    Keywords: Aldehydes/*metabolism/toxicity ; Animals ; Biotransformation ; Drug-Induced Liver Injury ; In Vitro Techniques ; Injections, Intravenous ; Lipid Peroxides/biosynthesis ; Liver Diseases/pathology ; Mice ; Microsomes, Liver/metabolism ; Necrosis/chemically induced ; Portal Vein ; Pyrrolizidine Alkaloids/*metabolism/toxicity ; Rats
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  • 51
    Publication Date: 1985-06-07
    Description: Measles virus generally produces acute illness. Rarely, however, persistent infection of brain cells occurs, resulting in a chronic and fatal neurological disease, subacute sclerosing panencephalitis (SSPE). Evidence indicates that expression of the measles virus matrix protein is selectively restricted in this persistent infection, but the mechanism underlying this restriction has not been identified. Defective translation of matrix messenger RNA has been described in one SSPE cell line. This report presents evidence that in a different SSPE tissue culture cell line IP-3-Ca, the matrix protein is synthesized but fails to accumulate. A general scheme is proposed to reconcile the different levels at which restriction of matrix protein has been observed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sheppard, R D -- Raine, C S -- Bornstein, M B -- Udem, S A -- CA13330-12/CA/NCI NIH HHS/ -- NS 08952/NS/NINDS NIH HHS/ -- NS 11920/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1985 Jun 7;228(4704):1219-21.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/4001938" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line ; Gene Expression Regulation ; Humans ; Hydrolysis ; Measles virus/genetics/growth & development/*metabolism ; Molecular Weight ; Mutation ; Protein Processing, Post-Translational ; Subacute Sclerosing Panencephalitis/*microbiology ; Viral Matrix Proteins ; Viral Proteins/*biosynthesis/genetics ; Virus Replication
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  • 52
    Publication Date: 1985-12-20
    Description: Two new methods were used to establish a rapid and highly sensitive prenatal diagnostic test for sickle cell anemia. The first involves the primer-mediated enzymatic amplification of specific beta-globin target sequences in genomic DNA, resulting in the exponential increase (220,000 times) of target DNA copies. In the second technique, the presence of the beta A and beta S alleles is determined by restriction endonuclease digestion of an end-labeled oligonucleotide probe hybridized in solution to the amplified beta-globin sequences. The beta-globin genotype can be determined in less than 1 day on samples containing significantly less than 1 microgram of genomic DNA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Saiki, R K -- Scharf, S -- Faloona, F -- Mullis, K B -- Horn, G T -- Erlich, H A -- Arnheim, N -- New York, N.Y. -- Science. 1985 Dec 20;230(4732):1350-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2999980" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Anemia, Sickle Cell/*diagnosis/genetics ; Base Sequence ; Clinical Laboratory Techniques ; DNA Restriction Enzymes ; DNA-Directed DNA Polymerase ; Escherichia coli ; *Gene Amplification ; Globins/*genetics ; Humans ; Nucleic Acid Hybridization ; Polymorphism, Genetic
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  • 53
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-09-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Smith, R A -- Duncan, M J -- Moir, D T -- New York, N.Y. -- Science. 1985 Sep 20;229(4719):1219-24.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3939723" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cattle ; Chymosin/*secretion ; Cloning, Molecular ; Cytoplasm/enzymology ; Enzyme Activation ; Enzyme Precursors/*secretion ; Fungal Proteins/secretion ; Glycosylation ; Mutation ; Plasmids ; Protein Processing, Post-Translational ; Recombinant Fusion Proteins/secretion ; Saccharomyces cerevisiae/enzymology/*genetics ; Solubility
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  • 54
    Publication Date: 1985-06-28
    Description: The search for new congeners of the leading anticancer drug doxorubicin has led to an analog that is approximately 1000 times more potent, noncardiotoxic at therapeutic dose levels, and non-cross-resistant with doxorubicin. The new anthracycline, 3'-deamino-3'-(3-cyano-4-morpholinyl)doxorubicin (MRA-CN), is produced by incorporation of the 3' amino group of doxorubicin in a new cyanomorpholinyl ring. The marked increase in potency was observed against human ovarian and breast carcinomas in vitro; it was not accompanied by an increase in cardiotoxicity in fetal mouse heart cultures. Doxorubicin and MRA-CN both produced typical cardiac ultrastructural and biochemical changes, but at equimolar concentrations. In addition, MRA-CN was not cross-resistant with doxorubicin in a variant of the human sarcoma cell line MES-SA selected for resistance to doxorubicin. Thus antitumor efficacy was dissociated from both cardiotoxicity and cross-resistance by this modification of anthracycline structure.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sikic, B I -- Ehsan, M N -- Harker, W G -- Friend, N F -- Brown, B W -- Newman, R A -- Hacker, M P -- Acton, E M -- CA 24543/CA/NCI NIH HHS/ -- CA 32250/CA/NCI NIH HHS/ -- CA 33303/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1985 Jun 28;228(4707):1544-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/4012308" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Antineoplastic Agents ; Breast Neoplasms/drug therapy ; Cell Line ; Chemical Phenomena ; Chemistry ; Dose-Response Relationship, Drug ; Doxorubicin/adverse effects/*analogs & derivatives/therapeutic use ; Female ; Heart/drug effects ; Humans ; Isoenzymes ; L-Lactate Dehydrogenase/analysis ; Mice ; Myocardium/enzymology ; Ovarian Neoplasms/drug therapy ; Pregnancy
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  • 55
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-11-01
    Description: Transposon mutagenesis of the bacterium Myxococcus xanthus with the transposon Tn5 revealed a special class of bacterial mutants that transduced the transposon through culture supernatant fluids. Virus-like particles copurified with transducing activity. Transposon tagging for detecting these virus-like particles may be generally useful in isolating endogenous viral agents capable of transferring genetic information between cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Starich, T -- Cordes, P -- Zissler, J -- CA 09138/CA/NCI NIH HHS/ -- GM 19557/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1985 Nov 1;230(4725):541-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2996138" target="_blank"〉PubMed〈/a〉
    Keywords: Bacteriophages/*analysis ; Centrifugation, Isopycnic ; *DNA Transposable Elements ; Microscopy, Electron ; *Mutation ; Myxococcales/*genetics ; Nucleic Acid Hybridization ; Virion/analysis
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  • 56
    Publication Date: 1985-11-22
    Description: Modulation of the growth of human and murine cell lines in vitro by recombinant human tumor necrosis factor-alpha (rTNF-alpha) and recombinant human interferon-gamma (rIFN-gamma) was investigated. rTNF-alpha had cytostatic or cytolytic effects on only some tumor cell lines. When administered together with rIFN-gamma, rTNF-alpha showed enhanced antiproliferative effects on a subset of the cell lines tested. In contrast to its effects on sensitive tumor cells, rTNF-alpha augmented the growth of normal diploid fibroblasts. Variations in the proliferative response induced by rTNF-alpha were apparently not due to differences in either the number of binding sites per cell or their affinity for rTNF-alpha. These observations indicate that the effects of rTNF-alpha on cell growth are not limited to tumor cells, but rather that this protein may have a broad spectrum of activities in vivo.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sugarman, B J -- Aggarwal, B B -- Hass, P E -- Figari, I S -- Palladino, M A Jr -- Shepard, H M -- New York, N.Y. -- Science. 1985 Nov 22;230(4728):943-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3933111" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Division/*drug effects ; Cell Line ; Cell Survival/drug effects ; Cell Transformation, Neoplastic/pathology ; Drug Synergism ; Glycoproteins/*pharmacology ; Humans ; Interferon-gamma/pharmacology ; Mice ; Recombinant Proteins/*pharmacology ; Tumor Necrosis Factor-alpha
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  • 57
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-05-31
    Description: A sexually dimorphic cell group is described in the preoptic area of the human hypothalamus. Morphometric analysis revealed that the volume of this nucleus is 2.5 +/- 0.6 times (mean +/- standard error of the mean) as large in men as in women, and contains 2.2 +/- 0.5 times as many cells. Between the ages of 10 and 93 years, the nucleus decreases greatly in volume and in cell number. Although no function has yet been established for this nucleus, it is located within an area that is essential for gonadotropin release and sexual behavior in other mammals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Swaab, D F -- Fliers, E -- New York, N.Y. -- Science. 1985 May 31;228(4703):1112-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3992248" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Aged ; Child ; Female ; Humans ; Male ; Middle Aged ; Preoptic Area/*anatomy & histology/cytology ; *Sex Characteristics
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  • 58
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-08-16
    Description: Transforming growth factor-type alpha accelerated incisor eruption and eyelid opening in the newborn mouse and also retarded the growth rates of hair and body weight when administered in high dosage (0.7 to 4 micrograms per gram of body weight). The results of whole animal studies indicate that transforming growth factor-type alpha and epidermal growth factor do not differ significantly in these effects and suggest that transforming growth factor-type alpha may be important in immature animals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tam, J P -- 36544/PHS HHS/ -- New York, N.Y. -- Science. 1985 Aug 16;229(4714):673-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3860952" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Newborn/*physiology ; Body Weight ; Eyelids/growth & development ; Hair/growth & development ; Mice ; Peptides/*physiology ; Tooth Eruption ; Transforming Growth Factors
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  • 59
    Publication Date: 1985-04-05
    Description: The classical transplantation antigens (the major histocompatibility complex class I antigens) play a key role in host defense against cells expressing foreign antigens. Several naturally occurring tumors and virally transformed cells show an overall suppression of these surface antigens. Since the class I molecules are required in the presentation of neoantigens on tumor cells to the cytotoxic T lymphocytes, their absence from the cell surface may lead to the escape of these tumors from immunosurveillance. To test this possibility, a functional class I gene was transfected into human adenovirus 12-transformed mouse cells that do not express detectable levels of class I antigens; the transformants were tested for expression of the transfected gene and for changes in oncogenicity. The expression of a single class I gene, introduced by DNA-mediated gene transfer into highly tumorigenic adenovirus 12-transformed cells, was sufficient to abrogate the oncogenicity of these cells. This finding has important implications for the regulation of the malignant phenotype in certain tumors and for the potential modulation of oncogenicity through derepression of the endogenous class I genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tanaka, K -- Isselbacher, K J -- Khoury, G -- Jay, G -- New York, N.Y. -- Science. 1985 Apr 5;228(4695):26-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3975631" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, Neoplasm/immunology ; Cell Line ; Immunization ; *Major Histocompatibility Complex ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Neoplasm Transplantation ; Neoplasms, Experimental/genetics/*immunology ; Rats
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  • 60
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-07-19
    Description: In addition to nerve growth factor (NGF), many proteins present in soluble tissue extracts and in the extracellular matrix influence the survival and development of cultured neurons. The structure, synthesis, and mechanism of action of NGF as a neurotrophic factor are considered along with the experiments on the new putative trophic molecules.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thoenen, H -- Edgar, D -- New York, N.Y. -- Science. 1985 Jul 19;229(4710):238-42.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2409599" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cattle ; Cell Survival ; Cells, Cultured ; Chick Embryo ; Chickens ; Cyclic AMP/physiology ; DNA/genetics ; Extracellular Matrix/physiology ; Humans ; Ion Channels/physiology ; Male ; Mice ; Molecular Weight ; Myocardium/cytology ; Nerve Growth Factors/genetics/isolation & purification/*physiology ; Neurons/physiology ; Protein Precursors/genetics ; RNA, Messenger/metabolism ; Rats ; Receptors, Cell Surface/physiology ; Receptors, Nerve Growth Factor ; Sympathetic Nervous System/cytology
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  • 61
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-06-21
    Description: Prosopagnosia, the inability to recognize visually the faces of familiar persons who continue to be normally recognized through other sensory channels, is caused by bilateral cerebral lesions involving the visual system. Two patients with prosopagnosia generated frequent and large electrodermal skin conductance responses to faces of persons they had previously known but were now unable to recognize. They did not generate such responses to unfamiliar faces. The results suggest that an early step of the physiological process of recognition is still taking place in these patients, without their awareness but with an autonomic index.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tranel, D -- Damasio, A R -- NS 19632-02/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1985 Jun 21;228(4706):1453-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/4012303" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Agnosia/*physiopathology ; *Awareness ; *Cognition ; *Face ; Female ; Galvanic Skin Response ; Humans ; Middle Aged ; *Visual Perception
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  • 62
    Publication Date: 1985-01-25
    Description: Administration of a monoclonal antibody (GK1.5) that recognizes the L3T4 marker present on helper T cells prevented the development of experimental allergic encephalomyelitis (EAE) in mice. Furthermore, treatment with GK1.5 reversed EAE when the antibody was given to paralyzed animals. In vivo injection of GK1.5 selectively reduced the number of L3T4+ cells in the spleen and the lymph nodes. These results suggest that manipulation of the human equivalent of the murine L3T4+ T-cell subset with monoclonal antibodies may provide effective therapy for certain autoimmune diseases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Waldor, M K -- Sriram, S -- Hardy, R -- Herzenberg, L A -- Lanier, L -- Lim, M -- Steinman, L -- GM-17367/GM/NIGMS NIH HHS/ -- NS-18235/NS/NINDS NIH HHS/ -- NS-571/NS/NINDS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1985 Jan 25;227(4685):415-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3155574" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Monoclonal/*therapeutic use ; Encephalomyelitis, Autoimmune, Experimental/pathology/*therapy ; Leukocyte Count ; Lymph Nodes/pathology ; Mice ; Spleen/pathology ; T-Lymphocytes, Helper-Inducer/*immunology
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  • 63
    Publication Date: 1985-03-08
    Description: In a study of the relation between chronic inflammation and carcinogenesis, C3H mouse fibroblasts of the 10T 1/2 clone 8 line (10T 1/2 cells) were exposed to human neutrophils stimulated to synthesize reactive oxygen intermediates or to a cell-free enzymatic system generating superoxide (xanthine oxidase plus hypoxanthine). After exposure, the 10T 1/2 cells were either placed in tissue culture or immediately injected into athymic nude mice. Both malignant and benign tumors developed in the mice injected with treated cells, but not in those injected with control cells; in one instance cells grown from one of the benign tumors subsequently developed a malignant phenotype. Malignant transformation was also observed in treated cells in the experiments in vitro.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weitzman, S A -- Weitberg, A B -- Clark, E P -- Stossel, T P -- CA 00962/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1985 Mar 8;227(4691):1231-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3975611" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Transformation, Neoplastic/*immunology ; Humans ; Mice ; Mice, Inbred C3H ; Mice, Nude ; Neutrophils/metabolism/*physiology ; Oxidation-Reduction/drug effects ; Phagocytes/*physiology ; Tetradecanoylphorbol Acetate/pharmacology
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  • 64
    Publication Date: 1985-05-10
    Description: The DNA coding for the human immunoglobulin D(IgD) heavy chain (delta, delta) has been sequenced including the membrane and secreted termini. Human delta, like that of the mouse, has a separate exon for the carboxyl terminus of the secreted form. This feature of human and mouse IgD distinguishes it from all other immunoglobulins regardless of species or class. The human gene is different from that of the mouse; it has three, rather than two, constant region domains; and its lengthy hinge is encoded by two exons rather than one. Except for the third constant region, the human and mouse genes are only distantly related.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉White, M B -- Shen, A L -- Word, C J -- Tucker, P W -- Blattner, F R -- AI18016/AI/NIAID NIH HHS/ -- CA31013-04/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1985 May 10;228(4700):733-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3922054" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Humans ; Immunoglobulin D/*genetics ; Immunoglobulin Heavy Chains/*genetics ; Immunoglobulin delta-Chains/*genetics ; Lymphocytes/metabolism ; Mice ; RNA, Messenger/genetics ; Species Specificity
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  • 65
    Publication Date: 1985-12-06
    Description: A complementary DNA library was constructed from messenger RNA's extracted from the brains of mice infected with the scrapie agent. The library was differentially screened with the objectives of finding clones that might be used as markers of infection and finding clones of genes whose increased expression might be correlated with the pathological changes common to scrapie and Alzheimer's disease. A gene was identified whose expression is increased in scrapie. The complementary DNA corresponding to this gene hybridized preferentially and focally to cells in the brains of scrapie-infected animals. The cloned DNA also hybridized to the neuritic plaques found with increased frequency in brains of patients with Alzheimer's disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wietgrefe, S -- Zupancic, M -- Haase, A -- Chesebro, B -- Race, R -- Frey, W 2nd -- Rustan, T -- Friedman, R L -- New York, N.Y. -- Science. 1985 Dec 6;230(4730):1177-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3840915" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/*genetics/pathology ; Animals ; Brain/*metabolism/pathology ; Cloning, Molecular ; Cricetinae ; DNA/genetics ; Humans ; Mice ; Nucleic Acid Hybridization ; RNA, Messenger/genetics ; Scrapie/*genetics/pathology ; Sheep
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  • 66
    Publication Date: 1985-11-22
    Description: Several inherited disorders in humans and in rodents result in myelin dysgenesis and a deficiency of the molecular constituents of myelin. A complementary DNA to one of the two major myelin proteins, myelin proteolipid protein (also known as lipophilin), has been used with Southern blot analysis of somatic cell hybrid DNA to map the human proteolipid protein gene to the middle of the long arm of the human X chromosome (bands Xq13-Xq22) and to assign the murine proteolipid protein gene to the mouse X chromosome. Comparison of the gene maps of the human and mouse X chromosomes suggests that myelin proteolipid protein may be involved in X-linked mutations at the mouse jimpy locus and has implications for Pelizaeus-Merzbacher disease, a human inherited X-linked myelin disorder.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Willard, H F -- Riordan, J R -- New York, N.Y. -- Science. 1985 Nov 22;230(4728):940-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3840606" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromosome Mapping ; DNA/genetics ; Demyelinating Diseases/*genetics ; Humans ; Mice ; Mice, Neurologic Mutants/*genetics ; Myelin Proteins/*genetics ; Proteolipids/*genetics ; Uteroglobin ; *X Chromosome
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  • 67
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-08-16
    Description: The size of the midsagittal area of the human corpus callosum obtained from postmortem measurement varied with tested hand preference. The corpus callosum, the main fiber tract connecting the two cerebral hemispheres, was larger by about 0.75 square centimeter, or 11 percent, in left-handed and ambidextrous people than in those with consistent right-hand preference. The difference was present in both the anterior and posterior halves, but not in the region of the splenium itself. This callosal morphology, which varied with hand preference, may also be related to individual differences in the pattern of hemispheric functional specialization. The greater bihemispheric representation of cognitive functions in left- and mixed-handers may be associated with greater anatomical connection between the hemispheres. The naturally occurring regressive events in neurogenesis, such as neuronal cell death and axonal elimination, may be factors in the individual differences in brain morphology and in functional lateralization. Specifically, right-handers may be those with more extensive early elimination of neural components.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Witelson, S F -- N01-NS-6-2344/NS/NINDS NIH HHS/ -- R01-NS 18954/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1985 Aug 16;229(4714):665-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/4023705" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Brain/anatomy & histology ; Corpus Callosum/*anatomy & histology ; Female ; *Functional Laterality ; Humans ; Male ; Middle Aged ; Organ Size ; Sex Factors
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  • 68
    Publication Date: 1985-06-28
    Description: DNA from a replication-defective spleen focus-forming virus (SFFV) was reconstructed and transfected into psi-2 cells containing a packaging-defective mutant of Moloney murine leukemia virus. Replication-incompetent retrovirus particles (helper virus-free containing genomes that express the transforming envelope gene of SFFV (gp52) transformed bone marrow cells in vitro and, after direct intravenous introduction of the vector, induced malignant erythroid disease in vivo. Disease induction was dependent on prior treatment of mice with phenylhydrazine, which probably increased the availability of erythroid target cells. Since there was no evidence of virus particle expression in mice with malignant disease, this study demonstrates the acute oncogenic potential of a limited number of erythroid cells expressing SFFV gp52. Direct inoculation of animals with nonreplicating retroviral vectors containing transforming genes may be useful in study the oncogenic effects of such genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wolff, L -- Ruscetti, S -- New York, N.Y. -- Science. 1985 Jun 28;228(4707):1549-52.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2990034" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bone Marrow/analysis ; *Cell Transformation, Neoplastic ; DNA Restriction Enzymes/metabolism ; DNA, Viral/metabolism ; Erythroblasts/*cytology ; Gene Expression Regulation ; Mice ; Oncogenes ; Phenotype ; Retroviridae/*genetics ; Spleen/microbiology ; Transfection ; Viral Envelope Proteins/genetics ; Virion/metabolism
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  • 69
    Publication Date: 1985-11-29
    Description: Hepatocyte-stimulating factor and interleukin-1 are proteins produced by monocytes in response to inflammatory challenge. Neither of these monokines had direct effects on steroid production by cultured adrenocortical cells. Both monokines stimulated pituitary cells (AtT-20) to release adrenocorticotropic hormone; interleukin-1 was equipotent with a combination of corticotropin-releasing factor and arginine vasopressin, and hepatocyte-stimulating factor was at least three times as effective. The synthetic glucocorticoid, dexamethasone, inhibited production of hepatocyte-stimulating factor by cultured monocytes. These results indicate an axis between monocytes and pituitary and adrenocortical cells which may play a role in regulating host defense.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Woloski, B M -- Smith, E M -- Meyer, W J 3rd -- Fuller, G M -- Blalock, J E -- AI 18932/AI/NIAID NIH HHS/ -- IR01AM338-39-01A1/AM/NIADDK NIH HHS/ -- R01-H120201/PHS HHS/ -- New York, N.Y. -- Science. 1985 Nov 29;230(4729):1035-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2997929" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenal Glands/metabolism ; Adrenocorticotropic Hormone/*secretion ; Animals ; Interleukin-1/pharmacology ; Interleukin-6 ; Mice ; Monocytes/*physiology ; Monokines ; Pituitary-Adrenal System/*physiology ; Proteins/*pharmacology ; Secretory Rate/drug effects
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  • 70
    Publication Date: 1985-07-19
    Description: List memory of pigeons, monkeys, and humans was tested with lists of four visual items (travel slides for animals and kaleidoscope patterns for humans). Retention interval increases for list-item memory revealed a consistent modification of the serial-position function shape: a monotonically increasing function at the shortest interval, a U-shaped function at intermediate intervals, and a monotonically decreasing function at the longest interval. The time course of these changes was fastest for pigeons, intermediate for monkeys, and slowest for humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wright, A A -- Santiago, H C -- Sands, S F -- Kendrick, D F -- Cook, R G -- New York, N.Y. -- Science. 1985 Jul 19;229(4710):287-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Sensory Sciences Center, Graduate School of Biomedical Sciences, University of Texas Health Science Center, Houston 77030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9304205" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Animals ; Columbidae ; Female ; Humans ; Macaca mulatta ; Male ; Random Allocation ; *Retention (Psychology) ; Serial Learning
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  • 71
    Publication Date: 1985-05-10
    Description: Consistent chromosomal translocations in neoplastic cells may alter the expression of proto-oncogenes that are located near the breakpoints. The complementary DNA sequence of the human insulin receptor is similar to those of the EGF receptor (erbB oncogene) and products of the src family of oncogenes. With in situ hybridization and Southern blot analysis of somatic cell hybrid DNA, the human insulin receptor gene was mapped to the distal short arm of chromosome 19 (bands p13.2----p13.3), a site involved in a nonrandom translocation in pre-B-cell acute leukemia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yang-Feng, T L -- Francke, U -- Ullrich, A -- GM 26105/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1985 May 10;228(4700):728-31.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3873110" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes ; *Chromosome Mapping ; *Chromosomes, Human, 19-20 ; Cricetinae ; Cricetulus ; Humans ; Hybrid Cells/metabolism ; Leukemia, Lymphoid/*genetics ; Nucleic Acid Hybridization ; Receptor, Insulin/*genetics ; Translocation, Genetic
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  • 72
    Publication Date: 1985-03-08
    Description: Transfection of normal human bronchial epithelial (NHBE) cells with a plasmid carrying the ras oncogene of Harvey murine sarcoma virus (v-Ha ras) changed the growth requirements, terminal differentiation, and tumorigenicity of the recipient cells. One of the cell lines isolated after transfection (TBE-1) was studied extensively and shown to contain v-Ha ras DNA. Total cellular RNA from TBE-1 cells hybridized to v-Ha ras structural gene fragment probes five to eight times more than RNA from parental NHBE cells. The TBE-1 cells expressed phosphorylated v-Ha ras polypeptide p21, showed a reduced requirement for growth-factor supplements, and became aneuploid as an early cellular response to v-Ha ras expression. As the transfectants acquire an indefinite life-span and anchorage independence they became transplantable tumor cells and showed many phenotypic changes suggesting a pleiotropic mechanism for the role of Ha ras in human carcinogenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yoakum, G H -- Lechner, J F -- Gabrielson, E W -- Korba, B E -- Malan-Shibley, L -- Willey, J C -- Valerio, M G -- Shamsuddin, A M -- Trump, B F -- Harris, C C -- New York, N.Y. -- Science. 1985 Mar 8;227(4691):1174-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3975607" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bronchi/*cytology/microbiology ; Carcinoma, Bronchogenic/genetics ; Cell Line ; Cell Transformation, Neoplastic/metabolism ; *Cell Transformation, Viral ; Culture Media ; DNA, Neoplasm/genetics ; Epithelial Cells ; Epithelium/microbiology ; Humans ; Lung Neoplasms/genetics ; Mice ; Mice, Nude ; Nucleic Acid Hybridization ; *Oncogenes ; Rats ; *Transfection
    Print ISSN: 0036-8075
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  • 73
    Publication Date: 1985-05-24
    Description: The circumsporozoite (CS) protein of the human malaria parasite Plasmodium falciparum may be the most promising target for the development of a malaria vaccine. In this study, proteins composed of 16, 32, or 48 tandem copies of a tetrapeptide repeating sequence found in the CS protein were efficiently expressed in the bacterium Escherichia coli. When injected into mice, these recombinant products resulted in the production of high titers of antibodies that reacted with the authentic CS protein on live sporozoites and blocked sporozoite invasion of human hepatoma cells in vitro. These CS protein derivatives are therefore candidates for a human malaria vaccine.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Young, J F -- Hockmeyer, W T -- Gross, M -- Ballou, W R -- Wirtz, R A -- Trosper, J H -- Beaudoin, R L -- Hollingdale, M R -- Miller, L H -- Diggs, C L -- New York, N.Y. -- Science. 1985 May 24;228(4702):958-62.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2988125" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Antibody Formation ; Antigens, Surface/genetics/*immunology ; Carcinoma, Hepatocellular ; Cell Line ; Cloning, Molecular ; Cross Reactions ; DNA, Recombinant ; Escherichia coli/genetics ; Humans ; Liver Neoplasms ; Malaria/*prevention & control ; Mice ; Plasmodium/immunology ; Plasmodium falciparum/genetics/*immunology/physiology ; *Protozoan Proteins ; Vaccines/*immunology
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  • 74
    Publication Date: 1985-06-21
    Description: Protective immunity against malaria can be obtained by vaccination with irradiated sporozoites. The protective antigens known as circumsporozoite (CS) proteins, are polypeptides that cover the surface membrane of the parasite. The CS proteins contain species-specific immunodominant epitopes formed by tandem repeated sequences of amino acids. Here it is shown that the dominant epitope of Plasmodium falciparum is contained in the synthetic dodecapeptide Asn-Ala-Asn-Pro-Asn-Ala-Asn-Pro-Asn-Ala-Pro or (NANP)3. Monoclonal antibodies and most or all polyclonal human antibodies to the sporozoites react with (NANP)3, and polyclonal antibodies raised against the synthetic peptide (NANP)3 react with the surface of the parasite and neutralize its infectivity. Since (NANP)3 repeats are present in CS proteins of P. falciparum from many parts of the world, this epitope is a logical target for vaccine development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zavala, F -- Tam, J P -- Hollingdale, M R -- Cochrane, A H -- Quakyi, I -- Nussenzweig, R S -- Nussenzweig, V -- New York, N.Y. -- Science. 1985 Jun 21;228(4706):1436-40.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2409595" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Antibodies, Monoclonal ; Child ; Epitopes/*immunology ; Humans ; Malaria/*prevention & control ; Peptides/immunology ; Plasmodium falciparum/*immunology ; *Vaccines
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  • 75
    Publication Date: 1985-08-23
    Description: The human c-mos proto-oncogene is located on chromosome 8 at band q22, close to the breakpoint in the t(8;21) (q22;q22) chromosome rearrangement. This translocation is associated with acute myeloblastic leukemia, subgroup M2. The c-myc gene, another proto-oncogene, has been mapped to 8q24. The breakpoint at 8q22 separates these genes, as determined by in situ hybridization of c-mos and c-myc probes. The c-mos gene remains on the 8q-chromosome and the c-myc gene is translocated to the 21q+ chromosome. Southern blot analysis of DNA from bone marrow cells of four patients with this translocation showed no rearrangement of c-mos.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Diaz, M O -- Le Beau, M M -- Rowley, J D -- Drabkin, H A -- Patterson, D -- CA 16910/CA/NCI NIH HHS/ -- CA 25568/CA/NCI NIH HHS/ -- HD 13432/HD/NICHD NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1985 Aug 23;229(4715):767-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3860954" target="_blank"〉PubMed〈/a〉
    Keywords: Chromosome Mapping ; *Chromosomes, Human, 21-22 and Y ; *Chromosomes, Human, 6-12 and X ; Humans ; Leukemia, Myeloid, Acute/*genetics ; Nucleic Acid Hybridization ; *Oncogenes ; *Translocation, Genetic
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  • 76
    Publication Date: 1985-12-06
    Description: Sequences upstream from the proto-oncogene fos were shown to be essential for its transcription. Transient expression of the chloramphenicol acetyl-transferase (CAT) gene linked to upstream sequences of the fos gene including its promoter reveals that sequences located 64 to 404 base pairs 5' to the fos cap site contain a typical transcriptional enhancer. Moreover, these enhancer sequences, which are strikingly conserved between mouse and human fos genes, coincide with a deoxyribonuclease I-hypersensitive site in the chromatin. The expression of the fos-CAT fusion genes was stimulated only two to three times by the fos inducer 12-0-tetradecanoyl phorbol-13-acetate. The fos enhancer does not appear to be tissue-specific.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Deschamps, J -- Meijlink, F -- Verma, I M -- New York, N.Y. -- Science. 1985 Dec 6;230(4730):1174-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3865371" target="_blank"〉PubMed〈/a〉
    Keywords: Acetyltransferases/genetics ; Animals ; Chloramphenicol O-Acetyltransferase ; Chromatin/metabolism ; DNA, Recombinant ; Deoxyribonuclease I/metabolism ; *Enhancer Elements, Genetic ; *Genes, Regulator ; Humans ; Mice ; *Proto-Oncogenes ; *Transcription, Genetic
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  • 77
    Publication Date: 1985-03-29
    Description: Concentrations of plasma homovanillic acid before treatment were highly correlated with global severity of illness in schizophrenic patients, both before and after treatment. In contrast, a fixed dose of haloperidol did not affect those concentrations. Thus, in patients with a diagnosis of schizophrenia, plasma homovanillic acid may reflect the severity of illness, but not be influenced by short-term pharmacological perturbations by neuroleptics.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Davis, K L -- Davidson, M -- Mohs, R C -- Kendler, K S -- Davis, B M -- Johns, C A -- DeNigris, Y -- Horvath, T B -- MH37922/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1985 Mar 29;227(4694):1601-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3975630" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Haloperidol/pharmacology ; Homovanillic Acid/*blood ; Humans ; Male ; Phenylacetates/*blood ; Schizophrenia/*blood
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  • 78
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-05-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cooper, D N -- New York, N.Y. -- Science. 1985 May 10;228(4700):650, 653.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3857706" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Genetic Engineering/methods ; *Genetic Vectors ; Humans ; Mice ; Retroviridae/*genetics
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  • 79
    Publication Date: 1985-11-01
    Description: A distinct subpopulation of striatal aspiny neurons, containing the enzyme nicotinamide adenine dinucleotide phosphate diaphorase, is preserved in the caudate nucleus in Huntington's disease. Biochemical assays confirmed a significant increase in the activity of this enzyme in both the caudate nucleus and putamen in postmortem brain tissue from patients with this disease. The resistance of these neurons suggests that the gene defect in Huntington's disease may be modifiable by the local biochemical environment. This finding may provide insight into the nature of the genetically programmed cell death that is a characteristic of the disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ferrante, R J -- Kowall, N W -- Beal, M F -- Richardson, E P Jr -- Bird, E D -- Martin, J B -- IR 23NS 19867-1/NS/NINDS NIH HHS/ -- MN1NS-3187/NS/NINDS NIH HHS/ -- NS 16367/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1985 Nov 1;230(4725):561-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2931802" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; Caudate Nucleus/enzymology/pathology ; Corpus Striatum/enzymology/*pathology ; Humans ; Huntington Disease/enzymology/*pathology ; Middle Aged ; NADPH Dehydrogenase/analysis ; Nerve Tissue Proteins/analysis ; Neurons/enzymology/*pathology ; Neuropeptide Y
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  • 80
    Publication Date: 1985-08-30
    Description: The coronavirus, mouse hepatitis virus strain A59 (MHV-A59), causes mild encephalitis and chronic demyelination. Immunohistochemical techniques showed that MHV-A59-infected C57BL/6 mice contained dense deposits of viral antigen in the subthalamic nucleus and substantia nigra, with fewer signs of infection in other regions of the brain. The animals showed extra- and intracellular vacuolation, neuronal loss, and gliosis in the subthalamic-nigral region. Such localization is unprecedented among known viral encephalitides of humans and other species. This infection by a member of a viral class capable of causing both encephalitis and persistent infection in several species may be related to postencephalitic parkinsonism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fishman, P S -- Gass, J S -- Swoveland, P T -- Lavi, E -- Highkin, M K -- Weiss, S R -- New York, N.Y. -- Science. 1985 Aug 30;229(4716):877-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2992088" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, Viral/analysis ; Basal Ganglia/*microbiology ; Brain/microbiology/pathology ; Coronaviridae Infections/*microbiology ; Demyelinating Diseases/microbiology ; Diencephalon/*microbiology ; Encephalitis/*microbiology ; Endoplasmic Reticulum/microbiology ; Gliosis/microbiology ; Golgi Apparatus/microbiology ; Mice ; Mice, Inbred C57BL ; *Murine hepatitis virus/immunology ; Neurons/microbiology/ultrastructure ; Substantia Nigra/*microbiology ; Vacuoles/ultrastructure
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  • 81
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-11-01
    Description: Figure 10 on page 351 of the Research Article "Constitutive and conditional suppression of exogenous and endogenous genes by anti-sense RNA" by J. G. Izant and H. Weintraub (26 July, p. 345) was reproduced erroneously, so that the green stain (NBD-phallacidin) of the actin filaments was not chromatically resolved. The micrographs are intended to document the specific disruption of the actin microfilament distribution, while the RNA and DNA staining pattern (orange-red) was unaffected. The correct figure and legend appear below.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Franco, V W -- New York, N.Y. -- Science. 1985 Nov 1;230(4725):496.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/4048943" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Clinical Enzyme Tests ; Colon/enzymology ; Colonic Neoplasms/*diagnosis/genetics ; Humans ; Ornithine Decarboxylase/analysis ; Risk
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  • 82
    Publication Date: 1985-09-13
    Description: The immunoglobulin kappa (kappa) gene promoter was activated by a "neutral" enhancer derived from Harvey murine sarcoma virus (HaMuSV) in immunoglobulin-producing myeloma cells, regardless of the enhancer's orientation or position in the vector. In one fibroblast line (3T3) the immunoglobulin kappa gene promoter was completely inactive when linked to the HaMuSV enhancer, whereas in mouse L cells, promoter activity was observed only with the HaMuSV enhancer in tandem with the immunoglobulin kappa gene promoter. The differential behavior of the gene promoter, when activated by a neutral enhancer in these three murine cell lines, suggests that promoter sequences contribute to the tissue-specific expression of this gene.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gopal, T V -- Shimada, T -- Baur, A W -- Nienhuis, A W -- New York, N.Y. -- Science. 1985 Sep 13;229(4718):1102-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2994213" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Cell Transformation, Viral ; Fibroblasts/analysis ; *Gene Expression Regulation ; Immunoglobulin Light Chains/*genetics ; Immunoglobulin kappa-Chains/*genetics ; Mice ; Multiple Myeloma/metabolism ; *Operon ; Sarcoma Viruses, Murine
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  • 83
    Publication Date: 1985-05-31
    Description: gamma-Aminobutyric acid (GABA), the major inhibitory neurotransmitter in mammalian brain, is believed to act by increasing membrane conductance of chloride ions. In this study it was found that GABA agonists increased the uptake of chloride-36 by cell-free membrane preparations from mouse brain. This influx was rapid (less than 5 seconds), and 13 micromolar GABA produced a half-maximal effect. The GABA antagonists (bicuculline and picrotoxin) blocked the effect of GABA, whereas pentobarbital enhanced the action. This may be the first demonstration of functional coupling among GABA and barbiturate receptors and chloride channels in isolated membranes. The technique should facilitate biochemical and pharmacological studies of GABA receptor-effector coupling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Harris, R A -- Allan, A M -- AA03527/AA/NIAAA NIH HHS/ -- AA06399/AA/NIAAA NIH HHS/ -- New York, N.Y. -- Science. 1985 May 31;228(4703):1108-10.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2581319" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Transport/drug effects ; Brain/*physiology ; Cell-Free System ; Chlorides/*physiology ; Ion Channels/*physiology ; Membranes/physiology ; Mice ; Receptors, GABA-A/drug effects/*physiology ; Receptors, Neurotransmitter/physiology
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  • 84
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-05-10
    Description: The CUP1 gene of yeast encodes a small, metallothionein-like protein that binds to and is inducible by copper. A gene replacement experiment shows that this protein protects cells against copper poisoning but is dispensable for normal cellular growth and development throughout the yeast life cycle. The transcription of CUP1 is negatively autoregulated. This feedback mechanism, which is mediated through upstream control sequences, may play an important role in heavy metal homeostasis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hamer, D H -- Thiele, D J -- Lemontt, J E -- New York, N.Y. -- Science. 1985 May 10;228(4700):685-90.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3887570" target="_blank"〉PubMed〈/a〉
    Keywords: Carrier Proteins ; Copper/metabolism ; Copper Sulfate ; Enzyme Induction ; Genes, Fungal ; Metallothionein/biosynthesis/genetics/*physiology ; Mutation ; Operon ; Plasmids ; RNA, Messenger/biosynthesis ; Saccharomyces cerevisiae/*enzymology/genetics
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  • 85
    Publication Date: 1985-01-04
    Description: Accumulation of very long chain fatty acids in X-linked and neonatal forms of adrenoleukodystrophy (ALD) appears to be a consequence of deficient peroxisomal oxidation of very long chain fatty acids. Peroxisomes were readily identified in liver biopsies taken from a patient having the X-linked disorder. However, in liver biopsies from a patient having neonatal-onset ALD, hepatocellular peroxisomes were greatly reduced in size and number, and sedimentable catalase was markedly diminished. The presence of increased concentrations of serum pipecolic acid and the bile acid intermediate, trihydroxycoprostanic acid, in the neonatal ALD patient are associated with a generalized diminution of peroxisomal activities that was not observed in the patient with X-linked ALD.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goldfischer, S -- Collins, J -- Rapin, I -- Coltoff-Schiller, B -- Chang, C H -- Nigro, M -- Black, V H -- Javitt, N B -- Moser, H W -- Lazarow, P B -- AG-01468/AG/NIA NIH HHS/ -- AM-17702/AM/NIADDK NIH HHS/ -- N5-03356/PHS HHS/ -- etc. -- New York, N.Y. -- Science. 1985 Jan 4;227(4682):67-70.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3964959" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenoleukodystrophy/genetics/metabolism/*pathology ; Adult ; Animals ; Bile Acids and Salts/metabolism ; Catalase/metabolism ; Child ; Child, Preschool ; Diffuse Cerebral Sclerosis of Schilder/*pathology ; Female ; Humans ; Liver/pathology ; Male ; Microbodies/*pathology ; Oxidation-Reduction ; Pipecolic Acids/blood ; Rats ; *X Chromosome
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  • 86
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-09-20
    Description: The sites of transcript accumulation for six different homeotic loci of the Antennapedia and bithorax gene complexes (ANT-C and BX-C) were identified within embryo tissue sections by in situ hybridization. These six loci belong to the Antennapedia class of the homeo box gene family. Transcripts encoded by each locus are detected primarily in discrete, nonoverlapping regions of the embryonic central nervous system (CNS). The regions of the CNS that contain transcripts encoded by each of these loci correspond to the embryonic segments that are disrupted in mutants for these genes. The maintenance of spatially restricted expression of each ANT-C and BX-C locus could involve hierarchical, cross-regulatory interactions that are mediated by the homeo box protein domains encoded by these genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Harding, K -- Wedeen, C -- McGinnis, W -- Levine, M -- New York, N.Y. -- Science. 1985 Sep 20;229(4719):1236-42.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3898362" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Central Nervous System/growth & development ; Chromosome Mapping ; Cloning, Molecular ; Drosophila/*genetics/growth & development/physiology ; *Gene Expression Regulation ; *Genes ; Nucleic Acid Hybridization ; Transcription, Genetic
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  • 87
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-08-02
    Description: Visna virus is a pathogenic lentivirus of sheep that is related to human T-cell lymphotropic virus type III (HTLV-III), the probable etiologic agent of the acquired immune deficiency syndrome (AIDS). The transcriptional activity of visna virus promoter and enhancer sequences was studied by means of an assay based on the transient expression of the bacterial gene chloramphenicol acetyltransferase (CAT). The results suggest that the high level of expression of visna virus is due in part to cis-acting enhancer sequences that give the viral promoter a high level of transcriptional activity. In addition, the rate of transcription from the visna virus promoter situated in a plasmid expressing the CAT gene was much greater in infected than uninfected cells. This phenomenon of trans-acting transcriptional activation may involve either virally or cellularly encoded factors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hess, J L -- Clements, J E -- Narayan, O -- NS-15721/NS/NINDS NIH HHS/ -- NS-16145/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1985 Aug 2;229(4712):482-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2990051" target="_blank"〉PubMed〈/a〉
    Keywords: Acetyltransferases/genetics ; Animals ; Base Sequence ; Cell Line ; Chloramphenicol O-Acetyltransferase ; Choroid Plexus ; Chromosome Mapping ; Enhancer Elements, Genetic ; *Genes, Regulator ; Goats ; Humans ; L Cells (Cell Line) ; Macrophages ; Mice ; Plasmids ; Promoter Regions, Genetic ; Sheep ; Synovial Membrane ; T-Lymphocytes ; *Transcription, Genetic ; Transfection ; Visna-maedi virus/*genetics
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  • 88
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-09-27
    Description: The three-dimensional structure of poliovirus has been determined at 2.9 A resolution by x-ray crystallographic methods. Each of the three major capsid proteins (VP1, VP2, and VP3) contains a "core" consisting of an eight-stranded antiparallel beta barrel with two flanking helices. The arrangement of beta strands and helices is structurally similar and topologically identical to the folding pattern of the capsid proteins of several icosahedral plant viruses. In each of the major capsid proteins, the "connecting loops" and NH2- and COOH-terminal extensions are structurally dissimilar. The packing of the subunit "cores" to form the virion shell is reminiscent of the packing in the T = 3 plant viruses, but is significantly different in detail. Differences in the orientations of the subunits cause dissimilar contacts at protein-protein interfaces, and are also responsible for two major surface features of the poliovirion: prominent peaks at the fivefold and threefold axes of the particle. The positions and interactions of the NH2- and COOH-terminal strands of the capsid proteins have important implications for virion assembly. Several of the "connecting loops" and COOH-terminal strands form prominent radial projections which are the antigenic sites of the virion.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hogle, J M -- Chow, M -- Filman, D J -- AI-20566/AI/NIAID NIH HHS/ -- AI-22346/AI/NIAID NIH HHS/ -- NS-07078/NS/NINDS NIH HHS/ -- R01 AI020566/AI/NIAID NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1985 Sep 27;229(4720):1358-65.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2994218" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antigens, Viral/immunology ; Capsid/physiology ; Chemical Phenomena ; Chemistry ; HeLa Cells/microbiology ; Mutation ; Poliovirus/physiology/*ultrastructure ; Protein Conformation ; Virus Replication ; X-Ray Diffraction
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  • 89
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-08-02
    Description: Antibody responses to hapten-polypeptide conjugates require peptide-specific helper T cells. The latter can be primed in tissue culture by providing small numbers of dendritic cells. Primed, irradiated helper T cells then induce B-cell growth and differentiation in the apparent absence of dendritic cells. Both stages of the antibody response--the induction of helper T lymphoblasts by dendritic cells and the delivery of help from T to B cell--occur in discrete cell aggregates that can be isolated by velocity sedimentation. If helper T blasts revert to smaller "memory" lymphocytes, dendritic cells again are needed to initiate the antibody response.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Inaba, K -- Steinman, R M -- AI 13013/AI/NIAID NIH HHS/ -- CA 30198/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1985 Aug 2;229(4712):475-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3160115" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibody Formation ; Antigen-Presenting Cells/*physiology ; B-Lymphocytes/immunology ; Cell Adhesion ; Haptens/immunology ; Immunologic Memory ; In Vitro Techniques ; Macrophages/physiology ; Mice ; Proteins/*immunology ; Spleen/*cytology/physiology ; T-Lymphocytes/immunology ; T-Lymphocytes, Helper-Inducer/*physiology
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  • 90
    Publication Date: 1985-05-03
    Description: The T-cell receptor is formed by two chains, alpha and beta, for which specific clones were recently obtained. In this report the gene for the beta chain of the human T-cell receptor was located on the long arm of chromosome 7, band q35, by means of in situ hybridization. This chromosome region in T cells is unusually prone to develop breaks in vivo, perhaps reflecting instability generated by somatic rearrangement of T-cell receptor genes during normal differentiation in this cell lineage.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Isobe, M -- Erikson, J -- Emanuel, B S -- Nowell, P C -- Croce, C M -- CA15822/CA/NCI NIH HHS/ -- CA16685/CA/NCI NIH HHS/ -- GM20700/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1985 May 3;228(4699):580-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3983641" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Animals ; Ataxia Telangiectasia/genetics ; Chromosome Aberrations/genetics ; Chromosome Disorders ; *Chromosome Mapping ; Chromosomes, Human, 13-15 ; Chromosomes, Human, 6-12 and X ; Female ; Humans ; Male ; Mice ; Receptors, Antigen, T-Cell/*genetics
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  • 91
    Publication Date: 1985-01-25
    Description: Viable Leishmania promastigotes and amastigotes were detected by epifluorescence microscopy with fluorescein diacetate being used to mark living parasites and the nucleic acid-binding compound ethidium bromide to stain dead cells. This procedure is superior to other assays because it is faster and detects viable intracellular as well as extracellular Leishmania. Furthermore, destruction of intracellular pathogens by macrophages is more accurately determined with fluorescein diacetate than with other stains. The procedure may have applications in programs to develop drugs and vaccines against protozoa responsible for human and animal disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jackson, P R -- Pappas, M G -- Hansen, B D -- New York, N.Y. -- Science. 1985 Jan 25;227(4685):435-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2578226" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Ethidium ; *Fluoresceins ; Leishmania/isolation & purification/*physiology ; Macrophages/parasitology ; Mice ; Microscopy, Fluorescence ; Movement ; Parasitology/*methods ; Staining and Labeling
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  • 92
    Publication Date: 1985-12-20
    Description: Regulation of transcription of members of the ras gene family undoubtably plays an important role in controlling cellular growth. Examination of this level of regulation requires identification of the promoter regions of the ras proto-oncogenes. Four major transcriptional start sites were detected in the human Harvey ras 1 proto-oncogene. The promoter region contains neither a TATA box nor a CAAT box in their characteristic upstream positions, has an extremely high G+C content (80 percent), and contains multiple GC boxes including seven CCGCCC repeats and three repeats of the inverted complement, GGGCGG. This region has strong promoter activity when placed upstream from the chloramphenicol acetyl transferase gene and transfected into monkey CV1 cells. In these ways the Harvey ras 1 proto-oncogene promoter resembles the promoter of the gene encoding the epidermal growth factor (EGF) receptor. The similarity between the two proto-oncogene promoters may be relevant to the mechanism by which the expression of such "growth control" genes is regulated.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ishii, S -- Merlino, G T -- Pastan, I -- New York, N.Y. -- Science. 1985 Dec 20;230(4732):1378-81.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2999983" target="_blank"〉PubMed〈/a〉
    Keywords: DNA Restriction Enzymes ; Epidermal Growth Factor/metabolism ; *Genes ; Humans ; Nucleic Acid Hybridization ; Plasmids ; *Promoter Regions, Genetic ; *Proto-Oncogenes ; RNA, Messenger/genetics ; Receptor, Epidermal Growth Factor ; Receptors, Cell Surface/*genetics ; Sequence Homology, Nucleic Acid ; Transcription, Genetic
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  • 93
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-09-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jerne, N K -- New York, N.Y. -- Science. 1985 Sep 13;229(4718):1057-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/4035345" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibodies/analysis ; Humans ; *Immune System ; Lymphocytes/physiology ; Mice
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  • 94
    Publication Date: 1985-04-05
    Description: The genes encoding the alpha chain of the human T-cell receptor have been mapped to chromosome 14, the chromosome on which the human immunoglobulin heavy chain locus resides. Thus, genes encoding two different classes of antigen receptor are present on the same chromosome. Furthermore, breaks involving chromosome 14 are frequently seen in tumors of T-cell origin. The potential relation of these chromosome abnormalities to alpha-chain genes is discussed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jones, C -- Morse, H G -- Kao, F T -- Carbone, A -- Palmer, E -- CA-18734/CA/NCI NIH HHS/ -- HD-02080/HD/NICHD NIH HHS/ -- HD-17717/HD/NICHD NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1985 Apr 5;228(4695):83-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3919444" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromosome Aberrations ; Chromosome Disorders ; *Chromosome Mapping ; *Chromosomes, Human, 13-15 ; Cricetinae ; Cricetulus ; DNA/genetics ; Humans ; Immunoglobulin Heavy Chains/*genetics ; Immunoglobulin alpha-Chains/*genetics ; Leukemia/genetics ; Lymphoma/genetics ; Nucleic Acid Hybridization ; Receptors, Antigen, T-Cell/*genetics
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  • 95
    Publication Date: 1985-01-18
    Description: The T-cell receptor for antigen (Ti) was purified from the human tumor cell line HPB-ALL. Amino-terminal sequence analysis of an acid-cleaved peptide of the Ti alpha chain showed that it is highly homologous to a putative murine alpha chain recently described. Amino-terminal sequence analysis of the Ti beta chain revealed that it shares 50 percent homology with the Ti beta chain amino acid sequences from two other human T-cell tumors. Nucleotide sequence analysis of a complementary DNA clone encoding the Ti beta chain from the HPB-MLT cell line showed that this chain represents a second human constant region gene segment and suggested that it arises from direct joining of the variable and joining gene segments without any intervening D region sequences.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jones, N -- Leiden, J -- Dialynas, D -- Fraser, J -- Clabby, M -- Kishimoto, T -- Strominger, J L -- Andrews, D -- Lane, W -- Woody, J -- 5 R01 AI15669/AI/NIAID NIH HHS/ -- AI10736/AI/NIAID NIH HHS/ -- Y001CP00502/CP/NCI NIH HHS/ -- New York, N.Y. -- Science. 1985 Jan 18;227(4684):311-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3871253" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cell Line ; Humans ; Immunoglobulin Constant Regions/genetics ; Leukemia, Lymphoid/immunology ; Lymphoma/immunology ; Mice ; Nucleic Acid Hybridization ; Receptors, Antigen, T-Cell/*genetics ; T-Lymphocytes/*immunology
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  • 96
    Publication Date: 1985-03-22
    Description: The environmental contaminant 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) may produce its effects by altering gene expression in susceptible cells. In mouse hepatoma cells, TCDD induces the transcription of the cytochrome P1-450 gene, whose product, aryl hydrocarbon hydroxylase, contributes both to the detoxification and to the metabolic activation of carcinogenic polycyclic aromatic hydrocarbons. A DNA fragment containing sequences flanking the 5' end of the cytochrome P1-450 gene was isolated and analyzed. This DNA fragment contains a cis-acting control element with at least three functional domains: a putative promoter, an inhibitory domain upstream from the promoter that blocks its function, and a TCDD-responsive domain still farther (1265 to 1535 base pairs) upstream of the promoter. These findings, together with results from earlier studies, imply that transcription of the cytochrome P1-450 gene is under both positive and negative control by at least two trans-acting regulatory factors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jones, P B -- Galeazzi, D R -- Fisher, J M -- Whitlock, J P Jr -- CA09302/CA/NCI NIH HHS/ -- CA32786/CA/NCI NIH HHS/ -- GM07149/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1985 Mar 22;227(4693):1499-502.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3856321" target="_blank"〉PubMed〈/a〉
    Keywords: Acetyltransferases/biosynthesis/genetics ; Animals ; Cell Line ; Chloramphenicol O-Acetyltransferase ; Cytochrome P-450 Enzyme System/*genetics ; DNA, Recombinant ; Dioxins/*pharmacology ; Enzyme Induction ; Gene Expression Regulation/*drug effects ; *Genes, Regulator ; Liver Neoplasms, Experimental ; Mice ; *Promoter Regions, Genetic ; Tetrachlorodibenzodioxin/*pharmacology ; Transcription Factors/metabolism ; Transcription, Genetic/drug effects ; Transfection
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  • 97
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-06-14
    Description: While a number of oncogenes are expressed in a cell cycle-dependent manner, their role in the control of cell proliferation can only be established by a direct functional assay. The c-myc protein, upon microinjection into nuclei of quiescent Swiss 3T3 cells, cooperated with platelet-poor plasma in the stimulation of cellular DNA synthesis. This suggests that c-myc protein, like platelet-derived growth factor (PDGF), may act as a competence factor in the cell cycle to promote the progression of cells to S phase. The presence in the medium of an antibody against PDGF abolished DNA synthesis induced by microinjected PDGF; however, the microinjected c-myc protein stimulated DNA synthesis even when its own antibody was present in the medium. The c-myc protein may act as an intracellular competence factor, while PDGF expresses its biological activity only from outside the cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaczmarek, L -- Hyland, J K -- Watt, R -- Rosenberg, M -- Baserga, R -- New York, N.Y. -- Science. 1985 Jun 14;228(4705):1313-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/4001943" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cell Cycle/drug effects ; Cells, Cultured ; DNA/biosynthesis ; Mice ; *Oncogenes ; Platelet-Derived Growth Factor/pharmacology
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  • 98
    Publication Date: 1985-04-05
    Description: Induction of cytochrome P1-450 has been linked to susceptibility to certain chemically induced cancers in mouse and man. Treatment of the human cell line MCF-7 with 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) results in high levels of aryl hydrocarbon (benzo[a]pyrene) hydroxylase (P1-450) activity. This cell line was used to isolate a human P1-450 full-length complementary DNA (cDNA) clone. The cDNA is 2566 nucleotides in length, encodes a polyadenylated messenger RNA (2.8 kilobases in length), and has a continuous reading frame producing a protein with 512 residues (molecular weight, 58,151). The human P1-450 cDNA and protein are 63 percent and 80 percent similar to mouse P1-450 cDNA and protein, respectively. Whereas the mouse TCDD-inducible P-450 gene subfamily has two members (P1-450 and P3-450), the human TCDD-inducible gene subfamily appears to have only one gene (P1-450).〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jaiswal, A K -- Gonzalez, F J -- Nebert, D W -- New York, N.Y. -- Science. 1985 Apr 5;228(4695):80-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3838385" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Carcinogens/pharmacology ; Cell Line ; Cricetinae ; Cytochrome P-450 Enzyme System/*genetics ; DNA/*genetics ; Dioxins/*pharmacology ; Enzyme Induction ; Humans ; Mice ; Nucleic Acid Hybridization ; Rabbits ; Tetrachlorodibenzodioxin/*pharmacology
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  • 99
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1985-04-12
    Description: Little is known about the digestive adaptations that enable mammals to sustain metabolic rates an order of magnitude higher than those of reptiles. Comparison of several features of digestion in mammals and lizards of similar size eating the same diet revealed that mammals processed food ten times faster and with the same or greater extraction efficiency. Transport kinetics and rates of nutrient absorption normalized to the quantity of intestinal tissue were similar in these two classes of vertebrates. The main basis for faster absorption in mammals is their much greater intestinal surface area.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Karasov, W H -- Diamond, J M -- AM17328/AM/NIADDK NIH HHS/ -- GM14772/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1985 Apr 12;228(4696):202-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3975638" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Transport ; *Body Temperature ; Diet ; *Digestion ; Eating ; Glucose/metabolism ; Intestines/anatomy & histology/physiology ; Lizards/physiology ; Mice ; Proline/metabolism ; Rats
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  • 100
    Publication Date: 1985-05-10
    Description: The natural history of estrogen-responsive breast cancers often involves a phenotypic change to an estrogen-unresponsive, more aggressive tumor. The human breast cancer cell line, MCF-7, which requires estradiol for tumor formation in vivo and shows growth stimulation in response to estradiol in vitro, is a model for hormone-responsive tumors. The v-rasH onc gene was transfected into MCF-7 cells. The cloned MCF-7ras transfectants, which expressed the v-rasH messenger RNA and v-rasH p21 protein (21,000 daltons), were characterized. In contrast to the parental cell line, MCF-7ras cells no longer responded to exogenous estrogen in culture and their growth was minimally inhibited by exogenous antiestrogens. When tested in the nude mouse, the MCF-7ras cells were fully tumorigenic in the absence of estrogen supplementation. Thus, cells acquiring an activated onc gene can bypass the hormonal regulatory signals that trigger the neoplastic growth of a human breast cancer cell line.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kasid, A -- Lippman, M E -- Papageorge, A G -- Lowy, D R -- Gelmann, E P -- New York, N.Y. -- Science. 1985 May 10;228(4700):725-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/4039465" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Breast Neoplasms/chemically induced/*genetics ; Cell Line ; Cell Transformation, Neoplastic/*chemically induced ; DNA, Neoplasm/genetics ; Estrogens/*pharmacology ; Female ; Humans ; Mice ; Mice, Nude ; Neoplasms, Experimental/chemically induced/genetics ; *Oncogenes ; Pyrrolidines/pharmacology ; Repetitive Sequences, Nucleic Acid ; Thiophenes/pharmacology ; *Transfection
    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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