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  • 1
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    Lipoprotein mutations in pigs are associated with elevated plasma cholesterol and atherosclerosis (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-12-19
    Description: A strain of pigs bearing three immunogenetically defined lipoprotein-associated markers (allotypes), designated Lpb5, Lpr1, and Lpu1, has marked hypercholesterolemia on a low fat, cholesterol-free diet. Unlike individuals with familial hypercholesterolemia or WHHL rabbits, the affected pigs have normal low density lipoprotein receptor activity. The animals, by 7 months of age, have extensive atherosclerotic lesions in all three coronary arteries. This strain of pig represents an animal model for atherosclerosis and hypercholesterolemia associated with mutations affecting the structures of plasma lipoproteins. One of the variant apolipoproteins, Lpb5, is apolipoprotein-B. A second variant apolipoprotein (Lpr1), termed apo-R, is a 23-kilodalton protein present in both the very low density (d less than 1.006 g/ml) and the very high density (d greater than 1.21 g/ml) fractions of pig plasma. Isoforms of this protein correlate with two Lpr alleles, Lpr1 and Lpr2. The Lpr genes segregate independently of the Lpb5 and Lpu1 alleles. The Lpu1 allotype is a component of low density lipoprotein and is genetically linked to Lpb5.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rapacz, J -- Hasler-Rapacz, J -- Taylor, K M -- Checovich, W J -- Attie, A D -- AG05-856/AG/NIA NIH HHS/ -- HL30594/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1986 Dec 19;234(4783):1573-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3787263" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Apolipoproteins B/genetics ; Arteriosclerosis/blood/*genetics ; Cholesterol/blood ; *Disease Models, Animal ; Female ; Genotype ; Hypercholesterolemia/blood/*genetics ; Immunologic Tests ; Lipoproteins/blood/*genetics ; Lipoproteins, LDL/blood/genetics ; Lipoproteins, VLDL/blood/genetics ; Male ; Mutation ; Receptors, LDL/metabolism ; Swine
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Elimination of anesthetics from rabbit brain (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-12-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Strum, D P -- Johnson, B H -- Eger, E I 2nd -- New York, N.Y. -- Science. 1986 Dec 19;234(4783):1586-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3787265" target="_blank"〉PubMed〈/a〉
    Keywords: Adipose Tissue/metabolism ; Animals ; Brain/*metabolism ; Halothane/*metabolism ; Isoflurane/*metabolism ; Kinetics ; Muscles/metabolism ; Rabbits
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    Thyroid hormone induction of an autocrine growth factor secreted by pituitary tumor cells (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-12-19
    Description: Thyroid hormones stimulate the rate of cell division by poorly understood mechanisms. The possibility that thyroid hormones increase cell growth by stimulating secretion of a growth factor was investigated. Thyroid hormones are nearly an absolute requirement for the division of GH4C1 rat pituitary tumor cells plated at low density. Conditioned media from cells grown with or without L-triiodothyronine (T3) were treated with an ion exchange resin to remove T3 and were tested for ability to stimulate the division of GH4C1 cells. Conditioned medium from T3-treated cells was as active as thyroid hormone at promoting GH4C1 cell growth but did not elicit other thyroid hormone responses, induction of growth hormone, and down-regulation of thyrotropin-releasing hormone receptors, as effectively as T3 did. A substance or substances associated with T3-induced growth stimulatory activity migrated at high molecular weight at neutral pH and was different from known growth-promoting hormones induced by T3. The results demonstrate that thyroid hormones stimulate the division of GH4C1 pituitary cells by stimulating the secretion of an autocrine growth factor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hinkle, P M -- Kinsella, P A -- AM 32847/AM/NIADDK NIH HHS/ -- AM/NS 00827/AM/NIADDK NIH HHS/ -- CA 11198/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1986 Dec 19;234(4783):1549-52.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3097825" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Division ; Cell Line ; Epidermal Growth Factor/metabolism ; Growth Hormone/metabolism ; Growth Substances/*secretion ; Nerve Growth Factors/metabolism ; Pituitary Neoplasms/*metabolism/pathology ; Rats ; Thyrotropin-Releasing Hormone/metabolism ; Triiodothyronine/*pharmacology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Immune system theories on trial (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-12-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1986 Dec 19;234(4783):1490-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3787255" target="_blank"〉PubMed〈/a〉
    Keywords: Aldicarb/adverse effects ; Animals ; Dioxins/adverse effects ; Environmental Pollutants/*adverse effects ; Humans ; Immune System Diseases/*chemically induced ; *Jurisprudence
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 5
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    EEC to cut animal use (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-12-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dickson, D -- New York, N.Y. -- Science. 1986 Dec 19;234(4783):1494.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3787257" target="_blank"〉PubMed〈/a〉
    Keywords: *Animal Welfare ; Animals ; Europe
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 6
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    Two different cis-active elements transfer the transcriptional effects of both EGF and phorbol esters (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-12-19
    Description: Short cis-active sequences of the rat prolactin or Moloney murine leukemia virus genes transfer transcriptional regulation by both epidermal growth factor and phorbol esters to fusion genes. These sequences act in a position- and orientation-independent manner. Competitive binding analyses with nuclear extracts from stimulated and unstimulated cells suggest that different trans-acting factors associate with the regulatory sequence of each gene. A model is proposed suggesting that both epidermal growth factor and phorbol esters stimulate the transcription of responsive genes via discrete classes of hormone-dependent, enhancer-like elements that bind different trans-acting factors, even in the absence of hormone stimulation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Elsholtz, H P -- Mangalam, H J -- Potter, E -- Albert, V R -- Supowit, S -- Evans, R M -- Rosenfeld, M G -- 1 U41 RR-61685-03/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1986 Dec 19;234(4783):1552-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3491428" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Enhancer Elements, Genetic ; Epidermal Growth Factor/*pharmacology ; Genes, Regulator ; *Genes, Viral ; Moloney murine leukemia virus/*genetics ; Prolactin/*genetics ; Promoter Regions, Genetic ; Rats ; Tetradecanoylphorbol Acetate/*pharmacology ; Transcription, Genetic/*drug effects
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    Tissue-specific and ectopic expression of genes introduced into transgenic mice by retroviruses (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-12-12
    Description: Recombinant retroviruses containing the complete genomic human beta globin gene (under the control of its own promoter) and the bacterial neomycin phosphotransferase gene (under the control of the normal or enhancerless viral promoter) were used to derive transgenic mouse strains by infection of preimplantation embryos. Expression of the beta globin gene in hematopoietic tissues was observed in all transgenic strains. In addition, one strain showed ectopic expression of beta globin in the same tissues that also expressed high levels of RNA from the viral promoter. It is likely that expression from the long terminal repeat (LTR), in contrast to expression from the internal promoter, is dependent on the site of integration. Thus, retroviral vectors can be used for tissue-specific expression of foreign genes in transgenic mice, as well as for the identification of loci that allow developmental activation of a provirus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Soriano, P -- Cone, R D -- Mulligan, R C -- Jaenisch, R -- HD-19105/HD/NICHD NIH HHS/ -- P01-CA38497/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1986 Dec 12;234(4782):1409-13.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3024318" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Gene Expression Regulation ; Globins/genetics ; Humans ; Kanamycin Kinase ; Mice/genetics ; Phosphotransferases/genetics ; Promoter Regions, Genetic ; RNA, Viral/immunology ; Repetitive Sequences, Nucleic Acid ; Retroviridae/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    Neurosciences advance in basic and clinical realms (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-12-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barnes, D M -- New York, N.Y. -- Science. 1986 Dec 12;234(4782):1324-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2431480" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/*diagnosis/pathology ; Animals ; Brain/pathology ; Cells, Cultured ; Glutamates/pharmacology ; Glutamic Acid ; Humans ; Ion Channels/*physiology ; Mollusca ; Neurons/drug effects ; Neurotransmitter Agents/*physiology ; Time Factors
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
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    Ultraviolet irradiation transforms C3H10T1/2 cells to a unique, suppressible phenotype (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-12-12
    Description: Transformation of C3H10T1/2 cells by exposure to ultraviolet (UV) irradiation followed by tetradecanoyl phorbol acetate (TPA) has been used as a model of two-stage carcinogenesis. However, cells cloned from UV-TPA-induced foci (UV-TDTx cells) had a unique phenotype. Cloned UV-TDTx cells appeared transformed in pure culture but were unable to form foci when cocultured with C3H10T1/2 cells. However, in the presence of TPA, UV-TDTx cells form foci in mixed culture with C3H10T1/2 cells. This phenotype was the only one observed for UV-TPA transformants. These data suggest that communal suppression of cell division is a discrete phenomenon that must be overcome as one step in the multistage process of transformation, and this protocol permits the routine isolation of transformed cells responsive to density-dependent growth suppression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Herschman, H R -- Brankow, D W -- New York, N.Y. -- Science. 1986 Dec 12;234(4782):1385-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3787250" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Division ; Cell Line ; *Cell Transformation, Neoplastic/drug effects/radiation effects ; Clone Cells ; Mice ; Mice, Inbred C3H ; Phenotype ; Tetradecanoylphorbol Acetate/pharmacology ; *Ultraviolet Rays
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
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    The hypogonadal mouse: reproductive functions restored by gene therapy (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-12-12
    Description: The hypogonadal (hpg) mouse lacks a complete gonadotropin-releasing hormone (GnRH) gene and consequently cannot reproduce. Introduction of an intact GnRH gene into the genome of these mutant mice resulted in complete reversal of the hypogonadal phenotype. Transgenic hpg/hpg homozygotes of both sexes were capable of mating and producing offspring. Pituitary and serum concentrations of luteinizing hormone, follicle-stimulating hormone, and prolactin were restored to those of normal animals. Immunocytochemistry and in situ hybridization showed that GnRH expression was restored in the appropriate hypothalamic neurons of the transgenic hpg animals, an indication of neural-specific expression of the introduced gene.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mason, A J -- Pitts, S L -- Nikolics, K -- Szonyi, E -- Wilcox, J N -- Seeburg, P H -- Stewart, T A -- New York, N.Y. -- Science. 1986 Dec 12;234(4782):1372-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3097822" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Female ; Follicle Stimulating Hormone/blood ; Gene Expression Regulation ; *Genetic Engineering ; Gonadotropin-Releasing Hormone/genetics ; Histocytochemistry ; Hypogonadism/*genetics ; Hypothalamus/analysis/cytology ; Infertility/genetics/*therapy ; Luteinizing Hormone/blood ; Male ; Mice ; Mutation ; Neurons/analysis ; Phenotype ; Prolactin/blood ; Tissue Distribution
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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