Association of single nucleotide polymorphisms in adiponectin and its receptor genes with polycystic ovary syndrome.

OBJECTIVE

To examine the possible association of adiponectin (ADIPOQ), adiponectin receptor (ADIPOR1/2) gene polymorphisms with polycystic ovary syndrome (PCOS) and their influence on insulin resistance in Japanese women with PCOS.

STUDY

DESIGN

Six single nucleotide polymorphisms (SNPs) in ADIPOQ and ADIPOR1/2 were genotyped in 59 infertile Japanese women with PCOS and 97 healthy Japanese controls. In addition, the association between the genotype and allele frequencies of these SNPs and the clinical phenotypes was analyzed in PCOS patients.

RESULTS

There was no significant difference in the genotype and allele frequencies of the 6 SNPs between PCOS patients and controls. In the PCOS group, women with the GG genotype of 45T > G of ADIPOQ had a significantly higher score in the homeostasis model assessment for insulin resistance, fasting blood sugar and insulin level than those with other genotypes. Furthermore, a statistically significant difference in the genotype frequency of 45T > G polymorphism was observed between PCOS subjects with insulin resistance (n = 38) and controls (p = 0.011).

CONCLUSION

The 6 SNPs of ADIPOQ and ADIPOR1/2 were not associated with a risk of PCOS. However, the 45T > G SNP in the ADIPOQ may be related to insulin resistance in Japanese women with PCOS.