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  • Articles  (6)
  • Life and Medical Sciences  (4)
  • Female  (2)
  • Astronomy
  • Solar Physics
  • 2000-2004
  • 1985-1989  (6)
  • 1940-1944
  • 1986  (6)
  • 1
    Electronic Resource
    Electronic Resource
    Actions of calcitonin, parathyroid hormone, and prostaglandin E2 on cyclic AMP formation in chicken and rat osteoclasts (1986)
    New York, N.Y. : Wiley-Blackwell
    Journal of Cellular Biochemistry 31 (1986), S. 229-241 
    Details
    ISSN: 0730-2312
    Keywords: calcium-regulating hormones ; bone cells ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: The effects of calcitonin, parathyroid hormone, and prostaglandin E2 on cyclic AMP production were studied in osteoclast-rich cultures derived from medullary bone of laying hens and from the long bones of newborn rats. Cyclic AMP was assayed biochemically in replicate cultures, and furthermore, changes in cytoplasmic fluorescence were sought by indirect immunofluorescence with rabbit anti-cyclic AMP and FITC-labelled goat anti-rabbit IgG. Treatment of rat osteo-clasts with calcitonin increased cyclic AMP formation as measured biochemically, and this was confirmed by the immunofluorescence method. No such increase took place in chick osteoclasts. Prostaglandin E2 increased cyclic AMP production in both rat and chick osteoclasts as determined by both methods. Since the immunofluorescence method failed to detect a response to parathyroid hormone either in chick or rat osteoclasts, its variable biochemical effects were concluded to be due to actions on contaminating osteoblasts in the cultures. Thus it has been possible with a combined biochemical and immunocytochemical approach to define the cyclic AMP responses to the calcium-regulating hormones in rat and chick osteoclasts. The failure of calcitonin to increase cyclic AMP in chick osteoclasts identifies a need to investigate the nature of calcitonin action on avian osteoclasts, which may contribute to understanding of its actions on mammalian cells.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcb.240310305
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  • 2
    Electronic Resource
    Electronic Resource
    Yeast/E. coli shuttle vectors with multiple unique restriction sites (1986)
    New York, NY [u.a.] : Wiley-Blackwell
    Yeast 2 (1986), S. 163-167 
    Details
    ISSN: 0749-503X
    Keywords: Shuttle vectors ; gene cloning ; Saccharomyces ; Life and Medical Sciences ; Genetics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology
    Notes: Two yeast/E. coli shuttle vectors have been constructed. The two vectors, YEp351 and YEp352, have the following properties: (1) they can replicate autonomuosly in Saccharomyces cerevisiae and in E. coli; (2) they contain the β-lactamase gene and confer ampicillin resistance to E. coli; (3) they contain the entire sequence of pUC18; (4) all ten restriction sites of the multiple cloning region of pUC18 including EcoRI, SacI, KpnI, SmaI, BamH1, XbaI, SbaI, SalI, PstI, SphI and HindIII are unique in YEp352; these sites are also unique in YEp351 except for EcoRI and KpnI, which occur twice; (5) recombinant plasmids with DNA inserts in the multiple cloning region of YEp351 and YEp352 can be recognised by loss of β-galactosidase function in appropriate E. coli hosts; (6) YEp351 and YEp352 contain the yeast LEU2 and URA3 genes, respectively, allowing for selection of these grown under non-selective conditions indicative of high plasmid copy number. The above properties make the shuttle vectors suitable for constructions of yeast genomic libraries and for cloning of DNA fragments defined by a large number of different restriction sites.The two vectors have been further modified by deletion of the sequences necessary for antunomous replication in yeast. The derivative plasmids YIp651 and YIp352 can therefore be used ti integrate specific sequences into yeast chromosomal DNA.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/yea.320020304
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  • 3
    Electronic Resource
    Electronic Resource
    Modification of a TEM-goniometer specimen holder to enable beam current measurements in a (S)TEM for use in quantitative X-ray microanalysis (1986)
    New York, NY : Wiley-Blackwell
    Journal of Electron Microscopy Technique 3 (1986), S. 379-384 
    Details
    ISSN: 0741-0581
    Keywords: STEM specimen holder ; Beam current ; X-ray microanalysis ; Transmission electron microscopy ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Natural Sciences in General
    Notes: In order to have available a specimen holder suited to measure the beam current as is often required in quantitative electron probe X-ray microanalysis, the rod of a low background beryllium specimen holder of a transmission electron microscope was modified. The tip was electrically insulated from the mass of the microscope and connected electrically to the central contact of a BNC connector mounted on the specimen holder handle. With this modified specimen holder the current absorbed by the specimen and/or the specimen holder could be measured easily and accurately. The modified specimen holder has been used to measure the beam current stability of an analytical electron microscope under various conditions. Data were obtained for tungsten as well as lanthanum hexaboride cathodes. Small changes to other types of specimen tips made it possible to exchange these for the low background tip.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jemt.1060030402
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  • 4
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    Atrial natriuretic peptide elevation in congestive heart failure in the human (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-03-07
    Description: A sensitive radioimmunoassay for atrial natriuretic peptide was used to examine the relation between circulating atrial natriuretic peptide and cardiac filling pressure in normal human subjects, in patients with cardiovascular disease and normal cardiac filling pressure, and in patients with cardiovascular disease and elevated cardiac filling pressure with and without congestive heart failure. The present studies establish a normal range for atrial natriuretic peptide in normal human subjects. These studies also establish that elevated cardiac filling pressure is associated with increased circulating concentrations of atrial natriuretic peptide and that congestive heart failure is not characterized by a deficiency in atrial natriuretic peptide, but with its elevation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Burnett, J C Jr -- Kao, P C -- Hu, D C -- Heser, D W -- Heublein, D -- Granger, J P -- Opgenorth, T J -- Reeder, G S -- New York, N.Y. -- Science. 1986 Mar 7;231(4742):1145-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2935937" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; Atrial Natriuretic Factor/*blood ; Cardiovascular Diseases/blood ; Female ; Heart Failure/*blood ; Hemodynamics ; Humans ; Male ; Middle Aged ; Radioimmunoassay
    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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    Shock and tissue injury induced by recombinant human cachectin (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-10-24
    Description: Cachectin (tumor necrosis factor), a protein produced in large quantities by endotoxin-activated macrophages, has been implicated as an important mediator of the lethal effect of endotoxin. Recombinant human cachectin was infused into rats in an effort to determine whether cachectin, by itself, can elicit the derangements of host physiology caused by administration of endotoxin. When administered in quantities similar to those produced endogenously in response to endotoxin, cachectin causes hypotension, metabolic acidosis, hemoconcentration, and death within minutes to hours, as a result of respiratory arrest. Hyperglycemia and hyperkalemia were also observed after infusion. At necropsy, diffuse pulmonary inflammation and hemorrhage were apparent on gross and histopathologic examination, along with ischemic and hemorrhagic lesions of the gastrointestinal tract, and acute renal tubular necrosis. Thus, it appears that a single protein mediator (cachectin) is capable of inducing many of the deleterious effects of endotoxin.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tracey, K J -- Beutler, B -- Lowry, S F -- Merryweather, J -- Wolpe, S -- Milsark, I W -- Hariri, R J -- Fahey, T J 3rd -- Zentella, A -- Albert, J D -- New York, N.Y. -- Science. 1986 Oct 24;234(4775):470-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3764421" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood Glucose/metabolism ; Endotoxins/toxicity ; Female ; Glycoproteins/*toxicity ; Humans ; Potassium/blood ; Rats ; Recombinant Proteins ; Shock/*chemically induced/pathology/physiopathology ; Sodium/blood ; Tumor Necrosis Factor-alpha
    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
    Electronic Resource
    Electronic Resource
    In vitro expression of a 38,000 dalton heparin-binding glycoprotein by morphologically differentiated smooth muscle cells (1986)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 127 (1986), S. 366-372 
    Details
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: In vitro, high density monolayer cultures of vascular smooth muscle cells can be induced to form multicellular nodules. The nodular cells appear to be morphologically differentiated smooth muscle cells. Sodium dodecyl sulfate (NaDodSO4)-polyacrylamide gel electrophoresis was used to compare the proteins synthesized and secreted by monolayer and nodular cultures of smooth muscle cells. Although most proteins appeared to be similar, the nodular cultures contained a unique heparin binding protein of Mr = 38,000 (38kD protein) (Millis, A.J.T., Hoyle, M., Reich, E., and Mann, D.M., 1985, J. Biol. Chem., 260: 3754-3761). The 38kD protein was glycosylated and its apparent molecular weight was shifted to Mr = 32,500 after synthesis in the presence of tunicamycin or digestion with endoglycosidase F. The production of 38kD protein by nodular cell cultures did not appear to result from the degradation of a high molecular weight precursor in nodular conditioned medium. Further, it was not detected in monolayer cell conditioned medium that had been incubated with nodular cells. Finally, its synthesis was not induced in monolayer cell cultures that had been labeled in nodular cell conditioned medium. The 38kD protein appears to be uniquely associated with nodular cultures of smooth muscle cells.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1041270304
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