title: Metabolism of 5 alpha-androstane-3 beta,17 beta-diol to 17 beta-hydroxy-5 alpha-androstan-3-one and 5 alpha-androstan-3 alpha,17 beta-diol in the rat.
abstract: Significant metabolism of 5 alpha-androstane-3 beta,17 beta-diol to 17 beta-hydroxy-5 alpha-androstan-3-one was recorded in several tissues and organs from rats and humans. This bioconversion was further investigated in rat testis homogenates. 5 alpha-Androstane-3 beta,17 beta-diol was readily metabolized to 17 beta-hydroxy-5 alpha-androstan-3-one with NAD and/or NADP added as cofactors. When a NADPH generating system was included in the incubation, 5 alpha-androstane-3 beta,17 beta-diol was metabolized to 5 alpha-androstan-3 alpha,17 beta-diol. Only small amounts of 17 beta-hydroxy-5 alpha-androstan-3-one accumulated under the latter condition.
mesh_terms: D000732:Androstanols / Q000096:biosynthesis*; D015114:Androstenediol / Q000378:metabolism*; D000734:Androstenediols / Q000378:metabolism*; D000818:Animals; D005260:Female; D066298:In Vitro Techniques; D008297:Male; D009243:NAD / Q000378:metabolism; D009249:NADP / Q000378:metabolism; D051381:Rats; D013737:Testis / Q000378:metabolism
chemical_list: D000732:Androstanols; D000734:Androstenediols; D009243:NAD; D009249:NADP; D015114:Androstenediol