Paper
The antiandrogenic action of 4-androsten-3-one-17 beta-carboxylic acid and its methyl ester on hamster flank organ.
Published Apr 1, 1973 · W. Voigt, S. Hsia
Endocrinology
86
Citations
2
Influential Citations
Abstract
4–Androsten–3–one–17β–carboxylic acid (17βC), an inhibitor of testosterone 5α–reductase, as discovered in our enzymic studies of human skin, was tested for its antiandrogenic potency in the hamster flank organ, which is an androgen—dependent sebaceous structure. The organ in the female animals enlarged in size and increased in pigmentation after topical application of testosterone propionate, 4 μg per day for 2 to 3 weeks. This response was completely inhibited by the concomitant application of 17βC or its methyl ester (400 μg per day). Topical application of 5α–dihydrotestosterone (DHT, 4 jig per day) also caused the enlargement of the flank organ, but the action of DHT was not inhibited by 17βC. Incubation of [14C] testosterone with homogenates of the flank organ produced DHT and androstane–3α,17β–diol (ADIOL) as the major metabolites. The formation of these two 5asteroids was inhibited by 17βC added in the incubation medium. These results indicate that 17βC is an antiandrogen, which acts by inhibition ...
17-C effectively inhibits testosterone-induced enlargement and pigmentation in hamster flank organs, acting as an antiandrogen by inhibiting testosterone 5-reductase activity.
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