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  • Articles  (20)
  • Male  (13)
  • Rats  (13)
  • Engineering General
  • 1985-1989  (7)
  • 1980-1984  (13)
  • Computer Science  (20)
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  • Articles  (20)
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  • 1
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    Site-specific integration of H-ras in transformed rat embryo cells (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-09-09
    Description: A karyotypic analysis was performed on seven independently derived clones of primary rat embryo cells transformed by the ras oncogene plus the cooperating oncogene myc. The transfected oncogenes were sometimes present in amplified copy number, with heterogeneity in the levels of amplification. Some chromosomal features, such as aberrantly banding regions and double-minute chromosomes, typical of cells carrying amplified genes, were also seen in three of the seven cell lines. Underlying this heterogeneity there was an unexpected finding. All seven lines showed a common integration site for ras on the q arm of rat chromosome 3 (3q12), though some lines also had other sites of integration. In four of the lines integration of ras was accompanied by deletion of the p arm of chromosome 3 or its possible translocation to chromosome 12.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McKenna, W G -- Nakahara, K -- Muschel, R J -- New York, N.Y. -- Science. 1988 Sep 9;241(4871):1325-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Radiation Oncology, University of Pennsylvania School of Medicine, Philadelphia 19104.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3045971" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromosome Mapping ; Gene Amplification ; *Genes, ras ; Oncogenes ; Rats ; Recombination, Genetic ; Transformation, Genetic ; Translocation, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    The human homologs of the raf (mil) oncogene are located on human chromosomes 3 and 4 (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-01-06
    Description: Two human genes that are homologous to both the murine transforming gene (oncogene) v-raf and the chicken transforming gene v-mil have been mapped by means of human-rodent somatic cell hybrids to human chromosomes previously devoid of known oncogenes. One gene, c-raf-2, which appears to be a processed pseudogene, is located on chromosome 4. The other gene, c-raf-1, which appears to be the active gene, is located on chromosome 3 and has been regionally mapped by chromosomal in situ hybridization to 3p25. This assignment correlates with specific chromosomal abnormalities associated with certain human malignancies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bonner, T -- O'Brien, S J -- Nash, W G -- Rapp, U R -- Morton, C C -- Leder, P -- New York, N.Y. -- Science. 1984 Jan 6;223(4631):71-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6691137" target="_blank"〉PubMed〈/a〉
    Keywords: Adenocarcinoma/genetics ; Animals ; Chromosome Aberrations ; Chromosome Mapping ; *Chromosomes, Human, 1-3 ; *Chromosomes, Human, 4-5 ; Cricetinae ; Humans ; Hybrid Cells ; Kidney Neoplasms/genetics ; Lung Neoplasms/genetics ; Male ; Mice ; Nucleic Acid Hybridization ; *Oncogenes
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    Retinal capillaries: basement membrane thickening by galactosemia prevented with aldose reductase inhibitor (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-09-16
    Description: A twofold thickening of capillary basement membranes of rat retinas resulting from dietary galactose was prevented by sorbinil, an inhibitor of aldose reductase. Since the basement membrane thickening was ultrastructurally similar to that typical of diabetic retinopathy, it may indicate changes in vessel permeability and susceptibility to hemorrhage. Galactosemic rats should be useful models for studying basement membrane-related complications of diabetes and for examining the potential biochemical regulation of basement membrane synthesis by aldose reductase inhibitors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Robison, W G Jr -- Kador, P F -- Kinoshita, J H -- New York, N.Y. -- Science. 1983 Sep 16;221(4616):1177-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6612330" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Basement Membrane/*pathology ; Capillaries/pathology ; Diabetic Retinopathy/etiology ; Disease Models, Animal ; Galactosemias/drug therapy/*pathology ; Imidazoles/*therapeutic use ; *Imidazolidines ; Male ; Rats ; Rats, Inbred Strains ; Retinal Vessels/*pathology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Biologically active chorionic gonadotropin: synthesis by the human fetus (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-04-15
    Description: The kidney, and to a slight extent the liver, of human fetuses were found to synthesize and secrete the alpha subunit common to glycoprotein hormones. Fetal lung and muscle did not synthesize this protein. Since fetal kidney and liver were previously found to synthesize beta chorionic gonadotropin, their ability to synthesize bioactive chorionic gonadotropin was also determined. The newly synthesized hormone bound to mouse Leydig cells and elicited a biological response: namely, the synthesis of testosterone. These results suggest that the human fetus may participate in metabolic homeostasis during its development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McGregor, W G -- Kuhn, R W -- Jaffe, R B -- HD08478/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1983 Apr 15;220(4594):306-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6682243" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chorionic Gonadotropin/*biosynthesis ; Fetus/*metabolism ; Humans ; Kidney/embryology ; Leydig Cells/metabolism ; Liver/embryology ; Luteinizing Hormone/biosynthesis ; Male ; Mice ; Placenta/metabolism ; Testosterone/biosynthesis
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    Linkage analysis of nondeletion hereditary persistence of fetal hemoglobin (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-02-19
    Description: Nondeletion forms of hereditary persistence of fetal hemoglobin may result from regulatory disorders of globin gene expression. The defects in two such conditions were localized by demonstrating a tight genetic linkage between the disorders and polymorphic restriction endonuclease sites within the beta-like globin gene complex. In one instance, the defect probably occurred outside the region of DNA between the epsilon- and beta-globin genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Old, J M -- Ayyub, H -- Wood, W G -- Clegg, J B -- Weatherall, D J -- New York, N.Y. -- Science. 1982 Feb 19;215(4535):981-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6186021" target="_blank"〉PubMed〈/a〉
    Keywords: Chromosome Deletion ; DNA Restriction Enzymes ; Female ; Fetal Hemoglobin/*genetics ; Genetic Linkage ; Globins/genetics ; Humans ; Male ; Pedigree ; Polymorphism, Genetic ; Thalassemia/*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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  • 6
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    Acquisition of a memory skill (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-06-06
    Description: After more than 230 hours of practice in the laboratory, a subject was able to increase his memory span from 7 to 79 digits. His performance on other memory tests with digits equaled that of memory experts with lifelong training. With an appropriate mnemonic system, there is seemingly no limit to memory performance with practice.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ericcson, K A -- Chase, W G -- Faloon, S -- New York, N.Y. -- Science. 1980 Jun 6;208(4448):1181-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7375930" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Association Learning/physiology ; Humans ; Male ; Memory/*physiology ; Memory, Short-Term/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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  • 7
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    Cellular and subcellular heterogeneity of [Ca2+]i in single heart cells revealed by fura-2 (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-01-16
    Description: Digital imaging of calcium indicator signals (fura-2 fluorescence) from single cardiac cells has revealed different subcellular patterns of cytoplasmic calcium ion concentration ([Ca2+]i) that are associated with different types of cellular appearance and behavior. In any population of enzymatically isolated rat heart cells, there are mechanically quiescent cells in which [Ca2+]i is spatially uniform, constant over time, and relatively low; spontaneously contracting cells, which have an increased [Ca2+]i, but in which the spatial uniformity of [Ca2+]i is interrupted periodically by spontaneous propagating waves of high [Ca2+]i; and cells that are hypercontracted (rounded up) and that have higher levels of [Ca2+]i than the other two types. The observed cellular and subcellular heterogeneity of [Ca2+]i in isolated cells indicates that experiments performed on suspensions of cells should be interpreted with caution. The spontaneous [Ca2+]i fluctuations previously observed without spatial resolution in multicellular preparations may actually be inhomogeneous at the subcellular level.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wier, W G -- Cannell, M B -- Berlin, J R -- Marban, E -- Lederer, W J -- HL25675/HL/NHLBI NIH HHS/ -- HL29473/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1987 Jan 16;235(4786):325-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3798114" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Benzofurans ; Calcium/*metabolism ; Cell Compartmentation ; Fura-2 ; In Vitro Techniques ; Myocardial Contraction ; Myocardium/*cytology/metabolism ; Rats ; Spectrometry, Fluorescence ; 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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  • 8
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    New routes to early memories (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-11-06
    Description: Stimulation of one side of the olfactory system during training with odor-milk pairings in neonatal rats results in their ability to recall an odor memory by using the trained but not the untrained side of the brain. In 12-day-old rats, olfactory learning can be recalled by stimulation of either the trained or untrained side. The development of bilateral recall reflects the maturation of olfactory commissural pathways that provide access to the olfactory memory stored on the contralateral side. Furthermore, the commissural pathways need not be present at the time of memory formation but can establish new and specific access to already existing olfactory memories.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kucharski, D -- Hall, W G -- HD17458/HD/NICHD NIH HHS/ -- MH09436/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1987 Nov 6;238(4828):786-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychology, Duke University, Durham, NC 27706.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3672125" target="_blank"〉PubMed〈/a〉
    Keywords: Aging ; Animals ; Animals, Newborn ; Brain/growth & development/physiology ; Central Nervous System/*growth & development ; Functional Laterality ; *Memory ; Milk ; *Odors ; Olfactory Pathways/*growth & development/physiology ; Rats
    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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    Physical mapping of a translocation breakpoint in neurofibromatosis (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-02
    Description: The gene for von Recklinghausen neurofibromatosis (NF1), one of the most common autosomal-dominant disorders of humans, was recently mapped to chromosome 17 by linkage analysis. The identification of two NF1 patients with balanced translocations that involved chromosome 17q11.2 suggests that the disease can arise by gross rearrangement of the NF1 locus, and that the NF1 gene might be identified by cloning the region around these translocation breakpoints. To further define the region of these translocations, a series of chromosome 17 Not I-linking clones has been mapped to proximal 17q and studied by pulsed-field gel electrophoresis. One clone, 17L1 (D17S133), clearly identifies the breakpoint in an NF1 patient with a t(1;17) translocation. A 2.3-megabase pulsed-field map of this region was constructed and indicates that the NF1 breakpoint is only 10 to 240 kilobases away from 17L1. This finding prepares the way for the cloning of NF1.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fountain, J W -- Wallace, M R -- Bruce, M A -- Seizinger, B R -- Menon, A G -- Gusella, J F -- Michels, V V -- Schmidt, M A -- Dewald, G W -- Collins, F S -- NS22224/NS/NINDS NIH HHS/ -- NS23410/NS/NINDS NIH HHS/ -- NS23427/NS/NINDS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1989 Jun 2;244(4908):1085-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, University of Michigan, Ann Arbor 48109.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2543076" target="_blank"〉PubMed〈/a〉
    Keywords: *Chromosome Mapping ; *Chromosomes, Human, Pair 17 ; Cloning, Molecular ; DNA Restriction Enzymes ; Electrophoresis ; Female ; Genetic Linkage ; Humans ; Hybrid Cells ; Male ; Neurofibromatosis 1/*genetics ; *Translocation, Genetic
    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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    Dioxin in soil: bioavailability after ingestion by rats and guinea pigs (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-03-09
    Description: Soil environmentally contaminated with 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) was given by gavage to guinea pigs and rats. The development of a characteristic clinicopathologic syndrome in guinea pigs, the induction of aryl hydrocarbon hydroxylase in rats, and the presence of TCDD in the livers of both species show that TCDD in soil exhibits high biological availability after ingestion.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McConnell, E E -- Lucier, G W -- Rumbaugh, R C -- Albro, P W -- Harvan, D J -- Hass, J R -- Harris, M W -- New York, N.Y. -- Science. 1984 Mar 9;223(4640):1077-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6695194" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aryl Hydrocarbon Hydroxylases/biosynthesis ; Biological Availability ; Body Weight/drug effects ; Cytochrome P-450 Enzyme System/metabolism ; Dioxins/*metabolism ; Eating ; Enzyme Induction ; Female ; Guinea Pigs ; Intestinal Absorption ; Liver/drug effects ; Male ; Microsomes, Liver/enzymology ; Organ Size/drug effects ; Rats ; Rats, Inbred Strains ; *Soil Pollutants/toxicity ; Tetrachlorodibenzodioxin/*metabolism/toxicity ; Thymus Gland/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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