Title: Suppression and stimulation of mineralocorticoid hormones (MCH) in the simple virilizing form of congenital adrenal hyperplasia (CAH) evaluated by the quantitation in adrenal venous blood. Author: Wajchenberg BL, Biglieri EG, Okada H, Malerbi DA, Achando SS, Kater CE. Journal: J Steroid Biochem; 1983 Jul; 19(1B):655-61. PubMed ID: 6350722. Abstract: Four untreated female patients with the nonsalt-losing form of congenital virilizing adrenal hyperplasia (21-hydroxylase deficiency) (21-OHD) maintained on a daily sodium intake of 120 m-equiv were studied by bilateral adrenal vein catheterization. Simultaneous right and left adrenal and peripheral blood samples were collected for determination of cortisol (F), progesterone (P), 17-hydroxyprogesterone (17-OHP), aldosterone (Aldo), and deoxycorticosterone (DOC). All patients were studied during sequential ACTH suppression (30 min after intravenous administration of 4 mg of dexamethasone) and stimulation (5 min after intravenous administration of 250 micrograms beta-ACTH [cosyntropin]). Basal peripheral concentrations of Aldo, DOC, P and 17-OHP were increased, whereas F concentrations were in the lower limit of the normal range. Dexamethasone suppressed adrenal secretion in all subjects. Subsequent adrenal stimulation by ACTH increased P, 17-OHP and DOC, whereas F returned to only control levels. DOC responses to ACTH in the adrenal vein effluents correlated significantly with Aldo responses but not with the 17-OHP increments, suggesting that the adrenal responses of Aldo and DOC to ACTH are events that probably occur in the same zone.[Abstract] [Full Text] [Related] [New Search]
