PGR and ovarian cancer: Several genes polymorphisms in ovarian cancer risk have been explored, such as Vitamin D receptor FokI,22 human epididymis protein 4 (HE4),23 the progesterone receptor,24 p53 25–27, and RAD52.28 In our study, we investigated the association of BRCA2 gene N372H polymorphism with ovarian cancer risk in the context of a case-control study.