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  • Articles: DFG German National Licenses  (2)
  • Protonmotive force  (1)
  • Thrombosis of inferior vena cava  (1)
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  • Articles: DFG German National Licenses  (2)
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Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Fatal bleeding from duodenal varices as a late complication of neonatal thrombosis of the inferior vena cava (1992)
    Springer
    Virchows Archiv 420 (1992), S. 367-370 
    Details
    ISSN: 1432-2307
    Keywords: Thrombosis of inferior vena cava ; Collateral circulation ; Duodenal varices ; Neonatal renal vein thrombosis ; Autopsy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A 21-year-old man was hospitalized with repeated bleeding from the gastrointestinal tract, the cause of which could not be detected by gastroscopy, colonoscopy or arteriography. After the third surgical intervention he died of uncontrollable bleeding. At autopsy, marked and partly ulcerated duodenal varices were found to be the cause of the bleeding. They were part of a collateral circulation that had developed from chronic obstruction of the inferior vena cava, where thrombosis had arisen in association with neonatal renal vein thrombosis. There was consecutive renal infarction which had required a left nephrectomy on the 2nd day after birth.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01600217
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Hydrolysis and synthesis of ATP by membrane-bound ATPase from a motile Streptococcus (1978)
    Springer
    Archives of microbiology 119 (1978), S. 31-36 
    Details
    ISSN: 1432-072X
    Keywords: Motile Streptococcus ; Membrane-bound ATPase ; DCCD ; Valinomycin ; Uncouplers ; Protonmotive force ; ATP synthesis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract ATPase was detected in the membranes of a motile Streptococcus. Maximal enzymic activity was observed at pH 8 and ATP/Mg2+ ratio of 2. Mn2+ and Ca2+ could replace Mg2+ to some extent. Besides ATP, GTP and ITP were substrates. The enzyme was inhibited by N,N′-dicyclohexylcarbodiimide but not by sodium azide, uncouplers or bathophenanthroline. An electrochemical gradient of protons, which was artificially imposed across the membranes of Streptococcus cells by manipulation of either the K+ diffusion potential or the transmembrane pH gradient, led to ATP synthesis. ATP synthesis was abolished by proton conductors, an inhibitor of the ATPase or an increase in the extracellular K+ concentration. A comparison between the phosphate potential and the electrochemical proton gradient showed that the data found are in agreement with a stoichiometry of 2 protons translocated per molecule ATP synthesized.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00407924
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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