Seminal toxicity of nickel sulfate in mice

Young male albino mice of Swiss strain were exposed to nickel by oral route of 20 mg nickel sulfate/kg body weight for 5 d/wk for 6 mo. A decrease in normal (testosterone-dependent) proteinuria was shown, and morphological ex amination of the seminal vesicles revealed a lower weight and smaller size as well as a histological indication of lower secretory activity of the epi thelium compared to controls. The findings are consistent with a theory imp lying a decreased testosterone activity in nickel-treated animals.