Effects of Light Deprivation upon the Spermatogenic and Steroidogenic Elements of Hamster Testes1
- 1 September 1971
- journal article
- other
- Published by The Endocrine Society in Endocrinology
- Vol. 89 (3) , 791-800
- https://doi.org/10.1210/endo-89-3-791
Abstract
The effects of light deprivation (LD) on the spermatogenic and steroidogenic elements of the testis were examined after hamsters were deprived of light for 0, 12, 22 or 42 days. The approach consisted of determining some of the principal biochemical constituents of the testis, examining the metabolism of radioactive glucose, lysine and acetate by the testis in vitro, and measuring circulating levels of testosterone. The results indicate that exposure to constant darkness significantly reduces (p 0.20) despite a 6-fold reduction in testis weight. The incorporation of lysine-U-14C into trichloroacetic acid precipitable material was greater (pin vitro synthesis of testosterone-14C from acetate-l-14C and the concentration of testosterone in peripheral plasma of LD hamsters was significantly lower (p in vitro metabolism of the spermatogenic elements of the testis after LD. (Endocrinology89: 791, 1971)Keywords
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