DNA repair gene (XRCC1 and XPD) polymorphism and risk of primary ovarian failure.

OBJECTIVE

DNA repair genes may be related with the onset of primary ovarian failure (POF). The study was planned to investigate whether the polymorphisms in the DNA repair genes modulate the risk of POF.

PATIENTS AND METHODS

This prospective study included 25 women diagnosed with POF and 25 healthy controls. The genotyping and allele of XRCC1 and XPD genes were determined by using Polymerase Chain Reaction and fluorescence melting curve analysis.

RESULTS

The genotype and allele distribution of the Arg194Trp and Arg399Lys polymorphism of the XRCC1 gene did not differ statistically between those of the POF and control groups. The frequency of the C (Gln) allele was significantly lower in patients diagnosed with POF when compared to that in healthy controls [48% vs. 76%, p=0.040, OR: 3.43 (CI: 1.03-11.48)]. The Lys/Lys genotype for XPD-Lys751Gln polymorphism in patients diagnosed with POF was more common than in healthy controls (p=0.028, 52% vs. 24%).

CONCLUSIONS

The genotype distribution and allele frequency of XPD-Lys751Gln, XRCC1-Arg194Trp and XRCC1-Arg399 Gln did not regulate the risk of developing POF. Gln/Gln+Lys/Gln and XPD-Lys751Gln polymorphism may have a possible protective role against the development of POF.