Eugen Steinach (1861–1944)
AuthorNunez-Eddy, Claudia; Turriziani Colonna, Federica
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Eugen Steinach researched sex hormones and their effects on mammals in the late nineteenth and early twentieth centuries in Europe. He experimented on rats by removing their testicles and implanting them elsewhere in their bodies, and he found that the testes interstitial cells produce male sex hormones. He developed the Steinach Rejuvenation Procedure, which he claimed could rejuvenate men by increasing their production of sex hormones. Steinach’s work on female sex hormones and on ovarian extracts led to the development of the first standardized injectable estrogen. Steinach’s research on reproductive hormones helped researchers explain the roles of sex hormones and develop hormone drugs.