Basal serum levels and ACTH-induced increments (‘Δ-values’) of dehydroepiandrosterone (DHA) and its sulfate (DHAS), 4-androstene-3,17-dione (A-4), 17α-hydroxyprogesterone (17-OHP), cortisol and testosterone and serum albumin levels were studied in patients with prostatic cancer before treatment and after orchidectomy or during estrogen treatment (intramuscular polyestradiol phosphate during the first 3 months, followed by another 3 months with additional oral ethinyl estradiol). Orchidectomy as well as single drug intramuscular or oral + intramuscular estrogens exerted a similar suppressive effect on basal levels of A-4 and 17-OHP. Orchidectomy caused a slight decrease in basal DHAS, while combined oral + intramuscular estrogens caused a pronounced decrease in basal DHAS and also in DHA. Single drug intramuscular estrogens did not affect basal DHA or DHAS levels. Increased basal cortisol levels appeared during combined oral + intramuscular estrogen therapy. ΔDHA and Δ A-4 values were unaffected by endocrine treatment, but Δ17-OHP and Δ cortisol increased slightly after orchidectomy and during estrogen therapy. Significantly decreased albumin levels were only observed during combined oral + intramuscular estrogen treatment. Determination of estriol, which is a major metabolite of estradiol originating from polyestradiol phosphate, revealed significantly higher estriol levels during combined oral + intramuscular estrogen treatment than during single drug intramuscular estrogen therapy, indicating an increased induction of hepatic 16α-hydroxylase activity. The pronounced decreases in DHAS and also in DHA during combined oral + intramuscular estrogen treatment are probably another reflexion of the liver side effects of oral estrogens.

Keywords:
Dehydroepiandrosterone, Dehydroepiandrosterone sulfate, 4-Androstene-3,17-dione, 17α-Hydroxyprogesterone, Estrogen treatment, Orchidectomy, Liver side effects
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© 1990 S. Karger AG, Basel
1990
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