Fig. 4

Microscopic examination of testes tissues of different studied groups. a Section in the testis of the control rats (or rats administered DMSO) showing the thin basement membrane (BM) surrounding the seminiferous tubule. Sertoli cells (St) with indented euchromatic nuclei (N), spermatid (Sp) and spermatocyte (Cy). Spermatogonia (g) with ovoid nucleus (X-6000); b Section in the testis of irradiated rats showing highly degenerated (SP) with deteriorated cytoplasm and blebbing of nuclear membrane (arrow), mitochondria appear as empty vesicles and (Cy) with nuclei contain clumps of heterochromatin (X-8000); c Section in the testis of rats receiving hesperidin (H) showing transverse sections of (SP) with large euchromatic nuclei and their cytoplasm contains peripherally located mitochondria (X-6000); d Section in the testis of rats receiving H before γ-radiation showing regeneration of (SP) with healthy mitochondria (m) and (N) (X-3600); e Section in the testis of rats receiving H after γ-radiation showing relatively regeneration of (SP) with still damaged sertoli cells which contained condensed heterochromatic (N) (X-3600). Number of rats in each group was 12