The mechanism of secretion of sex-steroids and the effect of gonadotropin on the sex-steroids production.

gonad. Please refer to our general review". In the past studies on the biosyn thesis, emphasis was laid on the elucidation of production route of sex hormones . The route established to date runs thus : Acetate• ̈cholesterol-, 22-hydroxy cholesterol pregnenolone • ̈ progesterone • ̈17-hydroxy progesterone-• ̈ƒ¢4-and rostene-3, 17-dione• ̈19-hydroxy-ƒ¢4-and rostenedione-,estrone->estradiol-17ƒÀ , but it is sure there are also some other unknown routes for estrogen production . This