title: Effect of short- and long-term dexamethasone on 3 alpha-androstanediol glucuronide in hirsute women.
abstract: The role of glucocorticoid therapy in regulating plasma 3 alpha-androstanediol glucuronide (3 alpha-diol G) content, a marker of androgen action, in hirsute women was unclear. A pulse injection of adrenocorticotropic hormone (0.5 U) following 1 mg of dexamethasone (DEX) at midnight significantly increased the plasma level of cortisol (P less than 0.01), 17-hydroxyprogesterone (17-OHP, P less than 0.01) in 17 hirsute women, but it had an insignificant effect on delta 4-androstenedione (delta 4A), testosterone, dehydroepiandrosterone sulfate (DHEA-S), and 3 alpha-diol G. Human chorionic gonadotropin administered for 3 days produced a significant (P less than 0.01) increase only in 17-OHP. DEX administered as a single dose in the late evening failed to affect the plasma levels of these four androgens when measured at 8:00 A.M. In contrast, when the glucocorticoid was given each evening for over 2 months, plasma delta 4A, DHEA-S, and 3 alpha-diol G were suppressed (P less than 0.001) substantially, as compared with baseline values in 12 hirsute women, 7 with polycystic ovary disease and 5 with idiopathic hirsutism. These observations indicate that chronic glucocorticoid therapy suppresses androgen action in hirsute women.
mesh_terms: D019326:17-alpha-Hydroxyprogesterone; D000324:Adrenocorticotropic Hormone / Q000494:pharmacology; D015113:Androstane-3,17-diol / Q000031:analogs & derivatives / Q000097:blood*; D000732:Androstanols / Q000097:blood*; D006063:Chorionic Gonadotropin / Q000494:pharmacology; D003687:Dehydroepiandrosterone / Q000097:blood; D003907:Dexamethasone / Q000627:therapeutic use*; D006628:Hirsutism / Q000097:blood / Q000188:drug therapy*; D006854:Hydrocortisone / Q000097:blood; D006908:Hydroxyprogesterones / Q000097:blood; D013739:Testosterone / Q000097:blood
chemical_list: D000732:Androstanols; D006063:Chorionic Gonadotropin; D006908:Hydroxyprogesterones; D015113:Androstane-3,17-diol; C028895:androstane-3,17-diol glucuronide; D013739:Testosterone; D003687:Dehydroepiandrosterone; D019326:17-alpha-Hydroxyprogesterone; D003907:Dexamethasone; D000324:Adrenocorticotropic Hormone; D006854:Hydrocortisone