Adrenal vein catheterizations were done in rats made hypertensive by administration of methylandrostenediol (MAD; 17α-methyl-5-androstene-3β,-17β-diol), and in control rats at intervals during treatment. All MAD-treated rats were hypertensive by 7 weeks. Secretion of corticosterone was consistently decreased at all times in MAD-treated rats. 18-Hydroxy-11-deoxycorticosterone secretion and 11-deoxycorticosterone (DOC) secretion decreased and increased, respectively, compared to controls at 2, 4, and 6 weeks. Aldosterone secretion was decreased at 2 and 4 weeks. This study shows an in vivo block of adrenal 11- and 18-hydroxylation. Transient DOC accumulation by treatment with MAD produced hypertension, though DOC oversecretion and other changes in steroidogenesis were waning by the time hypertension developed.
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McCall et al. (1978) studied this question.
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