Fig. 3.

Immunohistochemical staining of activated caspase-3 in rat testis. (A) Testis of control rats. (B) Testis of lead treated rats. The intensity of activated caspase-3 immunostaining (deep brown) is pre-dominant on spermatogonia and seminiferous tubules of lead treated group. (C) Testis of rats given cinnamon extract. (D) Testis of lead treated rats given cinnamon extract. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of the article.)