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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Archives of toxicology 43 (1979), S. 115-120 
    ISSN: 1432-0738
    Keywords: Hexachlorobenzene ; Steroid-5α-reductase ; 3-hydroxysteroid dehydrogenases ; Porphyria
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Erwachsene weibliche Wistar-Ratten wurden mit 0.05% Hexachlorbenzol enthaltendem Futter ernährt. Am 60. Tag dieser Behandlung waren die spezifischen Aktivitäten der NADPH: Δ 4-3-oxosteroid-5α-Reduktase und der 3-Hydroxysteroid-Dehydrogenasen in Lebermikrosomen, verglichen mit Kontroll-Ratten, vermindert. Die cytoplasmatische 5β-Reduktion war bei HCB-behandelten Ratten höher als bei Kontroll-Ratten. Diese Veränderungen des Steroidmetabolismus führen zu vermehrter Bildung von 5β-H-Steroiden, von denen bekannt ist, daß sie Induktoren der Porphyrin-Biosynthese sind.
    Notes: Abstract Adult female Wistar rats were fed with a diet containing 0.05% hexachlorobenzene. On the 60th day of this treatment the specific activities of NADPH: Δ 4-3-oxosteroid-5α-reductase and the 3-hydroxysteroid dehydrogenases in rat liver microsomes were diminished compared to control rats. The cytoplasmatic 5β-reduction was higher in HCB treated rats than in control rats. These alterations of the steroid metabolism lead to increased formation of 5β-H-steroids which are known to be inducers of the porphyrin biosynthesis.
    Type of Medium: Electronic Resource
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