RESUMO
Wistar strain male albino rats were administered with vincristine (VCR) sulphate (10 micrograms/day for 15 days); epithelial cell types of the caput (zone II) and cauda (zone V) were studied light microscopically adopting semithin sectioning. VCR caused conspicuous pathological changes in the principal and apical cells of the caput and the clear cells of the cauda. The study points to toxic effect of VCR on these cell types, suggesting impairment of epididymal function, particularly concerning sperm maturation and endocytotic removal of the contents of the cytoplasmic droplets and dead sperm.
Assuntos
Animais , Antineoplásicos Fitogênicos/farmacologia , Epididimo/efeitos dos fármacos , Masculino , Ratos , Ratos Wistar , Vincristina/farmacologiaRESUMO
Gross morphological and gravimetric changes were observed in the male reproductive system of sexually mature rats as well as rats in pubertal transition, given a continuous treatment of vincristine at dose levels of 10/20 and 5/10 micrograms respectively per day, for 15 days. The treatment resulted in a drastic regression of entire male reproductive system, suggesting that vincristine would cause male reproductive toxicity.