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Journal of Clinical Endocrinology & Metabolism, Vol 65, 711-714, Copyright © 1987 by Endocrine Society

ARTICLES

Production of 3 alpha-androstanediol glucuronide in human genital skin

RA Lobo, WL Paul, E Gentzschein, PC Serafini, JA Catalino, RJ Paulson and R Horton
Department of Obstetrics and Gynecology, University of Southern California School of Medicine, Los Angeles.

3 alpha-Androstanediol glucuronide (3 alpha diol-G) is produced extrasplanchnically and is a good clinical marker of androgen action in peripheral tissues. However, the direct formation of androgen glucuronides in peripheral sites such as skin has not been determined in man. Genital skin from 21 premenopausal women and 8 men and foreskin from 6 neonates were incubated with either [14C]testosterone [14C]dihydrotestosterone (DHT) to determine the production of DHT glucuronide and 3 alpha diol-G in skin. After hydrolysis of incubation medium with glucuronidase, followed by extraction and sequential chromatography, constant 3H to 14C ratios of 3 alpha diol confirmed the production of DHT glucuronide and 3 alpha diol-g. The conversion of DHT to 3 alpha diol-G was higher than the conversion from testosterone (P less than 0.05), and conversion was higher in men than in women. These data provide evidence for the direct formation of C19 steroid glucuronides by human skin.


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