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Levels of adrenodoxin, NADPH-cytochrome P-450 reductase and cytochromes P-45011 beta, P-45021, P-450scc, in adrenal zona fasciculata-reticularis tissue from androgen-treated rats.
Brownie AC, Bhasker CR, Waterman MR
(1988) Mol Cell Endocrinol 55: 15-20
MeSH Terms: Adrenal Cortex, Adrenodoxin, Androstenediols, Animals, Cytochrome P-450 Enzyme System, Female, Isoenzymes, Kinetics, Male, Methandriol, Mitochondria, NADPH-Ferrihemoprotein Reductase, Rats, Rats, Inbred Strains, Reference Values
Show Abstract · Added February 12, 2015
Treatment of rats with methylandrostenediol (MAD), an anabolic androgen, caused a profound reduction (65%) in the level of cytochrome P-450 11 beta in rat adrenocortical mitochondria as measured by immunoblots using a specific antibody. The decreases in mitochondrial cytochrome P-450scc (15%) and adrenodoxin (20%) were much less than that observed for cytochrome P-45011 beta. A 35% decrease in adrenal microsomal cytochrome P-450 21 and NADPH-cytochrome P-450 reductase levels was brought about by the treatment with MAD. The data establish that the preferential decrease in adrenal steroid 11 beta-hydroxylase activity associated with androgen treatment results from a decrease in cytochrome P-450 11 beta. This is consistent with the role of 11-deoxycorticosterone in the pathogenesis of androgen-induced hypertension in rats.
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