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  • Title: Rapid and intensive conversion of 5alpha-androstane-3alpha, 17beta-diol into 5alpha-dihydrotestosterone in the male rat anterior pituitary: in vivo and in vitro studies.
    Author: Pilven A, Thieulant ML, Ducouret B, Sampérez S, Jouan P.
    Journal: Steroids; 1976 Sep; 28(3):349-58. PubMed ID: 982493.
    Abstract:
    The in vivo and in vitro metabolism of (3H)-5alpha-androstane-3lapha,17beta-diol by the male rat anterior pituitary was studied. A rapid and intensive conversion of 5alpha-androstane-3alpha, 17beta-diol into 5alpha-dihydrotestosterone was demonstrated, since following a 30 min. incubation time, 73% of the recovered radioactivity were constituted by 5alpha-dihydrotestosterone. Studies on the subcellular distribution of steroids showed that 5alpha-dihydrotestosterone was the main steroid recovered except from the 105,000 X g pellet. From in vivo and in vitro experiments it was concluded that the transformation of 5alpha-dihydrotestosterone into 5alpha-androstane-3alpha, 17beta-diol was a reversible process, and that this last steroid could exert its biological action mainly via 5alpha-dihydrotestosterone.
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