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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Naunyn-Schmiedeberg's archives of pharmacology 296 (1977), S. 87-89 
    ISSN: 1432-1912
    Keywords: 4-Acetaminophenoxyacetic acid ; Phenacetin ; Urinary metabolites ; Drug metabolism
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary It is shown that 4-acetaminophenoxyacetic acid (APOA) is an urinary metabolite of phenacetin. APOA was isolated by means of silica gel TLC in various solvent systems from the urine of rats, dogs, and humans, collected 24 h after p.o. treatment with phenacetin (rats and dogs: 200 mg/kg; humans: three single doses of 0.5 g). Expressed as a percentage of the dose, APOA was detected at levels of 1% in rats, 0.13% in dogs and 0.04% in humans. 4-Acetaminophenoxyacetic acid was identified as its methylester—synthetized in the reaction of APOA and diazomethene—by thin layer chromatography, UV absorbance, melting point, and mass spectroscopy.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1435-2451
    Keywords: Lung edema ; Polytrauma ; Leukocyte ; Kininogenase ; Lungenödem ; Polytrauma ; Leukocyten ; Kininogenase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung In experimentellen Untersuchungen wurden Zusammenhänge zwischen posttraumatischen leukocytären Infiltrationen des Lungeninterstitiums und ödematösen Lungenveränderungen aufgezeigt. Aus menschlichem Frischblut wurden Leukocytenkonzentrate hergestellt, deren Lysosomen isoliert und Enzyme extrahiert. Vier neutrale Proteinasen konnten nachgewiesen und durch ihre spezifischen Substrate Bowie ihr Inhibitorspektrum charakterisiert werden. Die leukocytäre Kininogenase ist durch den therapeutisch anwendbaren polyvalenten Proteinaseninhibitor Trasylol®, hemmbar. In Tierversuchen wurde die pathogenetische Bedeutung der Kinine für die Ödembildung nachgewiesen. Der polyvalente leukocytäre Proteinaseninhibitor ist nur in geringer Menge nachweisbar.
    Notes: Summary Experimental investigations were carried out to correlate posttraumatic leukocyte infiltration of lung interstitium and edema formation. From human leukocyte lysosomes, four different neutral proteinases could be extracted and characterized by means of their specific substrates and their inhibitor spectra. Granulocyte kininogenase was sensitive to inhibition by Trasylol®, a polyspecific therapeutic proteinase inhibitor. In morphologic experiments on rabbits, the participation of kinins in the events leading to pulmonary edema is made obvious. The existence of small amounts of a polyvalent proteinase inhibitor of leukocyte origin could be shown.
    Type of Medium: Electronic Resource
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