• enzyme
  • Conversion of androstenedione to testosterone requires the enzyme 17β-hydroxysteroid dehydrogenase. (wikipedia.org)
  • This enzyme catalyses the following chemical reaction ketosteroid + NADPH + H+ + O2 ⇌ {\displaystyle \rightleftharpoons } steroid ester/lactone + NADP+ + H2O (general reaction) (1) progesterone + NADPH + H+ + O2 ⇌ {\displaystyle \rightleftharpoons } testosterone acetate + NADP+ + H2O (2) androstenedione + NADPH + H+ + O2 ⇌ {\displaystyle \rightleftharpoons } testololactone + NADP+ + H2O (3) 17alpha-hydroxyprogesterone + NADPH + H+ + O2 ⇌ {\displaystyle \rightleftharpoons } androstenedione + acetate + NADP+ + H2O Ketosteroid monooxygenase is a single FAD-containing enzyme that catalyses three types of monooxygenase reaction. (wikipedia.org)
  • concentrations
  • Results The concentrations of androstenedione (A4), 17α-hydroxyprogesterone (17-OHP), aldosterone (ALD), cortisone (COR), corticosterone (CORT), cortisol (F), progesterone (P), and testosterone were significantly different between men and women (Student's t-test). (readbyqxmd.com)
  • production
  • After menopause, androstenedione production is about halved, due primarily to the reduction of the steroid secreted by the ovary. (wikipedia.org)
  • Through the statistical analysis, the report depicts the global and Chinese total market of Androstenedione industry including capacity, production, production value, cost/profit, supply/demand and Chinese import/export. (reportsnreports.com)
  • women
  • Suppression of Plasma Androstenedione and Testosterone in Hirsute Women. (annals.org)
  • The women preferred T-shirts worn by men whose immune system genes were most different from them, indicating that it was the mixture of genes a man had that was the important factor in which sweaty T-shirt a woman preferred and not the androstenedione secreted in his sweat. (wikipedia.org)