Associations between Genetic Variants in DAB, PRKAG, and DACH Genes and Gender in Chronic Kidney Disease

Background: Recent genome-wide association studies demonstrated the association between the prevalence of chronic kidney disease (CKD) and rs11959928, rs626277, and rs7805747 polymorphisms. Materials and Methods: In this study, we investigated the association between CKD and these polymorphisms in patients and controls according to gender. High-resolution melting analysis was performed to detect DAB2 rs11959928, DACH1 rs626277, and PRKAG2 rs7805747 single nucleotide polymorphisms. Genomic DNA was extracted from the buffy coat of 163 patients with chronic renal disease and 218 control individuals. Ten percent of the results were also randomly confirmed by direct DNA sequencing. Results: Multivariable logistic regression analysis with adjustment for confounders showed rs7805747 (dominant model) has a statistically significant protective effect in females, and rs11959928 (additive and dominant models) was significantly associated with the prevalence of CKD in males. rs7805747 (recessive model) was significantly associated with the prevalence of CKD in males. Conclusion: The very same genetic variants have different effects in males and females separately. Our results warrant the need for similar studies in larger cohorts.