Fig. 14
Section of testis tissue of Syrian hamster. Hematoxylin-eosin staining; ×200. a Control testis showing normal organization of seminiferous tubules, with normal spermatogonia, spermatocytes, spermatids, spermatozoa and Sertoli cells. b–d TBT treatment groups at 50, 100 and 150 ppm concentrations showing abnormalities such as disruption of spermatogonia (arrow head), regression of seminiferous tubules (asterisk), degeneration of seminiferous epithelium, and edematous Leydig cells (arrow)