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  • 1980-1984  (1)
  • 1970-1974  (1)
  • 1
    ISSN: 1432-0428
    Keywords: Non-enzymatic glycosylation ; glomerular basement membrane ; immunoelectrophoresis ; Type 1 diabetes mellitus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Immunoelectrophoresis of glomerular basement membrane antigens in the urine of 20 Type 1 (insulin-dependent) diabetic and 10 healthy children was performed. In 10 of the diabetic children, there was altered α-1-mobility, while the other diabetic and normal children showed α-2-mobility. After incubation with glucose, glomerular basement membrane antigens in the urine of healthy children showed α-1-mobility. Isolated human kidney glomerular basement membrane split products obtained by proteolytic degradation (papain, trypsin, chymotrypsin) were also investigated by immunoelectrophoresis. A difference was observed in the immunoelectrophoretic pattern of native and glycosylated glomerular basement membrane split products. A distinct increase of thiobarbituric acid assay positive glomerular basement membrane structures after incubation with glucose provides suggestive evidence for the occurrence of non-enzymatic glycosylation of glomerular basement membrane proteins. Glycosylated glomerular basement membrane proteins may contribute to both functional and morphological changes in diabetic glomerulosclerosis.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 377 (1970), S. 20-28 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The formation of carbon and Au2O3 under the conditions of mechanical working of Au in a CO2 atmosphere has been proved by radiochemical and infrared measurements. The free enthalpy of this reaction (90 kcal/g-atom) exceeds the sublimation heat of the Au (72 kcal/g-Atom) and is an example of the high excess energy due to mechanical working. It is concluded that the chemical bonds of the CO2 molecule are ruptured and the gold atoms are ionized in the triboplasma formed by the mechanical treatment.
    Notes: Bei tribomechanischer Beanspruchung von Gold in CO2-Atmosphäre konnte über die radioaktive Markierung beider Phasen der unmittelbare Nachweis für eine Umsetzung zu Kohlenstoff und Goldoxid erbracht werden. Das Goldoxid wurde im IR-Spektrum als Au2O3 identifiziert. Durch diese Reaktion wird an Hand der freien Reaktionsarbeit mit einem Betrag von 90 kcal/Grammatom ein Beispiel für die durch den Bearbeitungsprozeß gelieferten hohen Energiebeträge gegeben. Diese Reaktionsarbeit übersteigt den Betrag der freien Sublimationsarbeit des Goldes von 72 kcal/Grammatom.Man kann daraus den Schluß ziehen, daß über die Tribosublimation hinaus eine Spaltung der CO2-Molekel bzw. eine Ionisation der Goldatome in dem durch die mechanische Beanspruchung erzeugten Triboplasma erfolgen.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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