Fig. 13From: Hormonal changes and redox imbalance in nicotine-induced testicular toxicity: the mitigating influence of D-ribose l-cysteineRepresentative micrograph from the Nicotine group. Observe the irregularly shaped tubules with their atrophied germinal epithelium (arrows). The lumina is wide and depleted of spermatozoa (stars). The interstitial arteries are enlarged and congested with blood (block arrows). Stain: H&E; Scalebar: 50 μmBack to article page