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- W1868789715 abstract "So far, the use of epostane, a relatively new inhibitor of 3 beta-hydroxysteroid dehydrogenase/delta 5-delta 4 isomerase enzyme system (3 beta-HSD), has been confined to short-term interference with luteal and placental function. This study explored whether epostane treatment from the beginning of the cycle for approximately 1 month would also inhibit ovarian follicular function. Twenty females with regular cycles received epostane 150 mg/day (ten healthy volunteers) or 600 mg/day (ten patients with endometriosis). Blood samples were drawn three times per week during control and treatment cycles. At 150 mg/day the mean total area under the serum concentration curve (AUC) of estradiol (E2) was somewhat higher than during the control cycles, despite apparently lower preovulatory E2 surges. During medication the highest value of E2 was found during the luteal phase. The mean AUC of progesterone (P) and 17 alpha-hydroxyprogesterone (17-OHP) during the luteal surge was decreased by approximately 45% each. At 600 mg/day all evaluable patients had lower AUC of E2 than during the control cycle. The mean decrease in AUC of P and 17-OHP was much more pronounced than in the lower dose group. Six of the ten patients showed no hormonal signs of follicular development and, consequently, anovulation. The capacity of epostane to modulate or inhibit, depending on the dose, ovarian follicular steroidogenesis and ovulation may prove valuable in a variety of clinical conditions." @default.
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- W1868789715 date "1988-12-01" @default.
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- W1868789715 title "Epostane in nonpregnant females: effects on progesterone, 17α-hydroxyprogesterone, and 17β-estradiol of two dose levels given for one month" @default.
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- W1868789715 doi "https://doi.org/10.1016/s0015-0282(16)60368-0" @default.
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