alexa Male reproductive toxicity of vincristine: ultrastructural changes in the epididymal epithelial apical cell.


Journal of Clinical Toxicology

Author(s): Akbarsha MA, Averal HI, Girija R, Anandhi S, Faridha Banu A

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Abstract The toxic effect of vincristine on the apical cells of the rat caput epididymis was investigated. The drug was administered at 20 and 40 microg/kg body weight daily for 15 days. Light microscopy using semithin sections, and transmission electron microscopy, of the caput epididymis were undertaken. The results revealed that the basal region of the apical cell was in contact with the basement membrane and the luminal end took part in endocytosis. The apical cells reflected a dose-dependent response to vincristine (VCR) treatment. In general the changes included protrusion of the apical ends deep into the lumen, with the nucleus of the cell located in such protruded ends, and an increase in the abundance of lysosomal bodies and multivesicular bodies. These changes reflected the physiological response of the apical cell to VCR treatment rather than toxic manifestations.
This article was published in Cytobios and referenced in Journal of Clinical Toxicology

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