Objective: To study whether CETP TaqIB,KCNE1 S38G and eNOS T-786C genetic polymorphisms are associated with non-valvular atrial fibrillation in the Han population from Zhejiang province.
Methods: Polymerase chain reaction restriction fragment length polymorphism assay was used to detect the distribution of alleles and genotypes of CETP TaqIB, KCNE1 S38G and eNOS T-786C in 147 patients with non-valvular atrial fibrillation and in 147 subjects as controls in Han population of Zhejiang province.
Results: (1) The frequency of CETP B1 allele in NVAF patients was higher than that of the control group and showing a statistically significant difference (OR = 1.763, 95% CI: 1.247-2.492, P = 0.002). (2) Results from logistic regression analysis revealed that: after adjustment of confounding variables such as sex, age, smoking, hypertension and body mass index, data from the binary logistic analysis showed a statistically significant difference in CETP TaqIB genetic polymorphism between patients and controls. (3) From multifactor dimensionality reduction analysis, results showed an interaction of CETP TaqIB, KCNE1 S38G and eNOS T-786C genetic polymorphisms. Odds ratio of the three simultaneously existing genetic polymorphisms was 1.849 times more than CETP TaqIB alone.
Conclusion: CETP BI allele was an independent risk factor for predisposition to non-valvular atrial fibrillation. These findings suggested that the simultaneous existence of CETP B1, KCNE1 S38G and eNOS T-786C allele might be elevated with the predisposition to non-valvular atrial fibrillation in the Han population of Zhejiang province.