Melatonin Alleviated Potassium Dichromate-Induced Oxidative Stress and Reprotoxicity in Male Rats

Figure 3

Photomicrograph of the testis section of rat stained with H&E. (a) The control group showing normal spermatogonia (Sg), spermatocytes (Sc), spermatids (Sp), and interstial cells (I). (b) The potassium dichromate group showing degeneration of spermatogenic cells (arrow), pyknotic nuclei (P), vacuolated Leydig cells (V), and congestion of blood vessels (H). (c) The potassium dichromate and melatonin low-dose group showing partial improvement of spermatogenic cells with interstitial congestion (H). (d) The potassium dichromate and melatonin high-dose group showing the spermatogenic cells were improved. (e) The melatonin group showing normal structure (H&E: ×400).

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