Abstract
In order to evaluate the short term metabolic effects of gossypol on the testes as well as any possible effects on the secondary sex organs, Balb C mice were injected subcutaneously with various doses of gossypol (0.25-25.0 mg/kg body weight) in corn oil for 10 days. Wet weights of several different secondary sex reproductive organs decreased during gossypol treatment. However, wet weights of the testes during treatment remained equal to or greater than control values. Following 10 days of gossypol treatment, incorporation of [3H]thymidine or [3H]amino acids into trichloroacetic acid precipitable macromolecules was inhibited in the seminal vesicles and ventral prostates normalized to either DNA or wet weight. Treatment with gossypol also had an inhibitory effect on epididymal sperm count at the two highest doses. These results demonstrate that gossypol will decrease sperm count at high dose levels after treatment of male mice for as short as 10 days. However, its overall effects are not limited to the testes and spermatogenesis but, in addition, it has dramatic inhibitory effects on protein and nuclei acid metabolism in the secondary sex organs.
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