Figure 6: Effects of different CTX doses on the total follicle number, and the correlation of the total follicle number with endocrine hormone levels. (a and b) Correlation analysis of the CTX doses and total follicle number showed that the damaging effect of CTX on follicles was dose dependent. (c) Correlation analysis of E2 levels and the total follicle number. (d) Correlation analysis of FSH levels and the total follicle number. Data are presented as the mean ± standard deviation; n = 32; *P < 0.0001. FSH: Follicle-stimulating hormone; CTX: Cyclophosphamide.