Hormonal Control of Mammalian Spermatogenesis
Our findings showed that treatment for four days immediately after hypophysectomy with FSH or FSH plus HGG was able to restore normal growth of the tubules. In rats treated with HOG alone, there was no restoration of growth. The d1fferenoe in response between FSH, and FSH plus HCG treated rats was slight, with the HCG slightly promoting growth. The figures show conclusively that FSH has a definite influence on testicular events, and that it is a vital hormone in the process of spermatogenesis.