Fig. 13

Testis sections stained by H&E, for trained rats. (A) Control group showing normal histological structure of testis intact seminiferous tubule (black arrow), normal germinal layers (yellow arrow) and normal Leydig cell (red arrow). (B, C), Stanz group intact seminiferous tubules (black arrow), regular arrangement of all germinal layers and healthy spermatids (yellow arrow), as well as degeneration of spermatogenic cells (blue arrow). (C) Showing intact seminiferous tubules (black arrow), regular arrangement of all germinal layers and healthy spermatids (yellow arrow), congested blood vessel (red arrow), degeneration of spermatogonia (blue arrow). (D, E) Cann group (D): Showing intact seminiferous tubules (black arrow), hyperplasia of Leydig cell (blue arrow), oedema (red arrow), degeneration of spermatogonia (yellow arrow), (E): Showing intact seminiferous tubules (black arrow), regular arrangement of all germinal layers and healthy spermatids (yellow arrow), oedema (red arrow), degeneration of spermatogonia (blue arrow) (F, G) combined group. (F) distortion of seminiferous tubules (black arrow), exfoliation into the tubular lumen (yellow arrow), vacuolation of Sertoli cells (blue arrow) (G): showing mild distortion of seminiferous tubules (black arrow) and organization of the seminiferous epithelium (yellow arrow), degeneration of some germ cell (red arrow) and atrophy of Leydig cells (blue arrow)