Fig. 2

Estrous cycle of the mice. A Representative photomicrographs of the four estrus stages of the estrous cycle of a female mouse. Bars = 50 μm. B Representative estrous cycle of one mouse from each group. The dashed lines separated the estrous cycle 1 week before the end of modeling (yellow part) from 2 weeks after models were established, or the last week of the 4-week experimental groups. P, proestrus; E, estrus; M, metestrus; D, diestrus