Fig. 2

Effect of melatonin pre-treatment on spermatogenic cell in mice exposed to whole-body ⁶⁰Co γ-irradiation. Animals were sacrificed through cervical dislocation and testes were collected on 1^st, 3^rd, 7^th, 15^th and 30^th days post-irradiation. After fixation and processing, cross sections of testes (5 μm) were stained with H & E and spermatogenic cells were analyzed and represented. *p < 0.001