However, when the endometriosis group was subdivided according to fertility status and dis</span>ease stage, a positive association was found between 680Ser/Ser or GG genotype of the Asn680Ser polymorphism and fertile women with endometriosis (p = 0.004).
The purpose of this study was to evaluate the influence of the follicle-stimulating hormone (FSH) receptor poymorphisms Asn680Ser and Thr307Ala on endometriosis in Turkish women.
For the A/G polymorphism of FSH receptor gene (Asn680Ser), a univariate analysis for women with endometriosis demonstrated that both the GG genotype (680Ser/Ser) and GA genotype (680Ser/Asn) were associated with a significantly lower risk of endometriosis.