Fig. 2

Histological observation of ovarian follicles 4 weeks after Cy exposure Mice were injected with Cy (n = 5) or saline (n = 5) for 2 weeks, and then housed for 4 weeks before histological observation of the ovaries. a Number of ovarian follicles in control and Cy-injected mice. b Proportions of primordial, primary, and secondary and preovulatory follicles in each group. Data represent the mean ± standard deviation. Statistical analysis was performed by Student’s t-test