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Brownie, A.C. et al.

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.

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.[1]

References

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, A.C., Bhasker, C.R., Waterman, M.R. Mol. Cell. Endocrinol. (1988) [Pubmed]

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