Studies on Testicular Function III. Effects of FSH, LH, Testosterone and Dihydrotestosterone on Restoration and Maintenance of Testicular-Specific Lactate Dehydrogenase Activity in the Hypophysectomized Rat

Abstract

Hypophysectomy of the adult male rat depressed the activity of testicular-specific lactate dehydrogenase (LDH-X). Groups of rats were treated with FSH (F), LH (L) or testosterone (T) alone or in combination after 32 days of post-hypophysectomy regression (restoration experiment) for a further 32 days or with F, T or dihydrotestosterone (D) alone or in combination from 2 days after hypophysectomy (maintenance experiment) for 30 days.