Cortisone-induced Transformation of Ovaries into Testes in Larval Frogs.

Abstract
Summary Cortisone, like 3 other tested alkyl substituted androstanes, causes the transformation of ovaries of frog larvae into testes. Its action is initially anti-ovariogenic, and sex reversal follows by a compensatory development of the meduallary rudiment. The dosages that produce sex reversal are high in comparison with the threshold values of testosterone and methyltestosterone.

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