Fig. 3

Histopathological examination of mice ovarian tissues. Photomicrographs shows H&E stained ovaries. A Control group. B POI group. C UCMSCs group. D LV-NC-UCMSCs group. E LV-hsa-miR-21-5p-UCMSCs group. F LV-hsa-miR-21-5p-inhibition-UCMSCs group. Five types of ovarian follicles were marked in each group (1–5). G and H Statistical charts of the follicle count in mice ovaries of the six groups. Data presented as mean ± SD. ^*P < 0.05, ^**P < 0.01, ^***P < 0.001 vs. Control group or LV-NC-UCMSCs group, separately. Bar scale = 200 μm