Fig. 2

Acupuncture improves ovarian function in POR. (A) Comparison of vaginal exfoliated cell morphology across different estrous cycle stages. (B) Comparison of estrous cycle stages among groups. (C) Comparison of ovarian wet weight, ovarian index, and the number of retrieved oocytes and embryos among groups (n = 10). (D) Comparison of serum FSH, LH, AMH, and E2 concentrations among groups (n = 10). (E) Comparison of ovarian tissue morphology among groups. (F) Comparison of mitochondrial ultrastructure among groups. Black arrows indicate nucleated epithelial cells, red arrows indicate anucleated epithelial cells, and green arrows indicate leukocytes. Data are presented as mean ± SD. * P < 0.05, ** P < 0.01, *** P < 0.001, **** P < 0.0001