Fig. 2

Histopathological examination of ovaries with H&E staining. a: 24 h after irradiation, the ovarian tissue in each group was normal, with no obvious structural damage. b: 72 h after irradiation, the morphology of the ovaries was obviously damaged by irradiation with hemorrhage in the cortex and ovarian interstitial hyperplasia, and the ovarian structure in group S2 was not significantly damaged. c: The numbers of follicles in each group 24 h after irradiation. d: The numbers of follicles in each group 72 h after irradiation. Results were presented as mean ± SEM. **p < 0.01, ***p < 0.001