Accordingly, the ratio of SOD2/GPx1 was found to be nonsignificantly elevated in the group of endometrial cancer (0.234 ± 0.061) compared with the control group (0.102 ± 0.032) and slightly decreased in the patients of endometriosis (0.0079 ± 0.022). The gene discussed is SOD2; the disease is endometriosis.