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  • Title: Simultaneous radioimmunoassay of 5alpha-androstane-3alpha, 17beta-diol and 5alpha-androstane-3beta, 17beta-diol unconjugated and conjugated in human serum.
    Author: Habrioux G, Desfosses B, Condom R, Faure B, Jayle M.
    Journal: Steroids; 1978; 32(1):61-71. PubMed ID: 705818.
    Abstract:
    The simultaneous determinations of both 3alpha and 3beta epimers of 5alpha-androstane-3,17beta-diol as their glucuronides, sulfates and in their unconjugated forms are described. The diol estimation is carried out by radioimmunoassay with two specific immune sera after purification of the serum by use of chromatography on Sephadex LH-20. The values obtained (mean +/- S.D.) in pg/ml for the unconjugated 3alpha and 3beta epimers were, respectively, 267 +/- 67 and 816 +/- 76 for men; 114 +/- 33 and 515 +/- 177 for women; 142+/- 77 and 779 +/- 200 for hirsute women. Among the conjugates, the most important were the sulfoconjugates, their rates being, respectively (men +/- S.D. in ng/ml 41.6 +/- 9.5 and 103+/- 40 for men; 12.4 +/- 3.1 and 51.2 +/- 14.9 for women and 36 +/- 22 and 72 +/- 36 for hirsute women. Differences in the conjugation of both epimers were also noticed.
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