Figure 2

Immunohistochemical staining of FoxP3 protein in peri-implantation phase eutopic endometrium. Immunohistochemical staining of FoxP3 protein expression in eutopic endometrium during the peri-implantation phase. Positive immunolabeling for FoxP3 (brown diaminobenzidine chromogen coloration) occurs in the endometrial stroma (arrows). (a) FoxP3 protein expression in the endometrium of infertile patients with advanced endometriosis. (b) FoxP3 protein expression in the endometrium of infertile patients with mild endometriosis. (c) FoxP3 expression in the endometrium of the control group. No significant difference was observed among these groups. (all pictures, original magnification × 200; inset, original magnification × 400).