Fig. 4

Effects of BSHXR on endometrial COX2, PGE2, and EP2 receptor expression on ED4 midnight. a Representative images of COX2 immunohistochemistry staining in the uterus. b Representative images of EP2 receptor immunohistochemistry staining in the uterus. c COX2 protein level in endometrium (n = 3). d Endometrial PGE2 level. e EP2 receptor protein level in endometrium (n = 3). f Relative mRNA level of endometrial COX2 (n = 5–6). g Relative mRNA level of endometrial EP2 receptor (n = 5–6). The western blot images in (c) and (e) were cropped. Scale bar is shown in pictures. L, lumen; S, stroma. Arrows indicate the gland (G). Data were represented as mean ± SD. β-actin was used as the reference. ^##P < 0.01, ^###P < 0.001, ^####P < 0.0001 vs. control group, ^*P < 0.05, ^**P < 0.01, ^***P < 0.001 vs. model group