Association between TGF-β/BMP signaling pathway polymorphisms and the risk of primary ovarian insufficiency in Korean women.

Background: Primary ovarian insufficiency (POI) is one of the leading female infertility diseases in which ovarian function stops before the age of 40. Reports that POI is associated with transforming growth factor (TGF)-β/bone morphogenetic protein (BMP) signaling pathway-associated genes (e.g., TGF-β, and BMP15) have been continuous since publication that the TGF-β superfamily acts as important regulators for ovary and placenta function in humans. Mechanistically, the secretion of follicle-stimulating hormone, progesterone, and estrogen is affected by the TGF-β superfamily in granulosa cells, which are involved in the development of theca cells, oocytes, and granulosa cells.

Objective: This study aimed to identify the association between genes related to the TGF-β/BMP signaling pathway and the risk of POI pathogenesis.

Methods: Possible associations between six gene polymorphisms and POI susceptibility were examined in 139 patients with POI and 345 control subjects.

Results: Allele combination of TGFBR1 rs334348 G > A and TGFBR3 rs1805110G > A exhibited association with decreased POI risk (adjusted odds ratio [AOR] = 0.165; 95% confidence interval [CI] 0.032-0.847; P = 0.031). Also, TGFBR1 rs1590 G > T and rs334348 G > A and TGFBR3 rs1805110 G > A allele combination exhibited association with decreased POI risk (OR = 0.553; 95% CI 0.374-0.816; P = 0.003).

Conclusion: This study suggests that polymorphisms in the TGF-β signaling pathway genes can be useful biomarkers for POI diagnosis and treatment.