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The Anatolian Journal of Cardiology

[Anatol J Cardiol]
Anatol J Cardiol. 2016; 16(9): 662-666 | DOI: 10.5152/AnatolJCardiol.2015.6542  

The rs6817105 polymorphism on chromosome 4q25 is associated with the risk of atrial fibrillation in the Chinese Han population

Zhen Fang1, Yaowu Liu1, Buqing Ni2, Xin-guang Chen1, Liyan Zhao1, Fengxiang Zhang1
1Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing Jiangsu- China
2Department of Cardiothoracic Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing Jiangsu- China

Objective: Previous genome-wide association studies (GWASs) have identified rs6817105—a single nucleotide polymorphism (SNP) on chromosome 4q25—to be associated with the risk of atrial fibrillation (AF) in a European-descent population. We recently demonstrated this association in a large cohort of Japanese ancestry. Our present study was designed to determine this association in the Chinese Han population.
Methods: This case–control study included 597 AF cases and 996 AF-free controls, and rs6817105 SNPs were genotyped using the TaqMan allelic discrimination assay. Odds ratios (ORs) and 95% confidence intervals (95%CIs) were calculated in logistic regression models.
Results: The genotype distribution of rs6817105-CC was significantly more frequent in the AF patients than in the controls (p=3.24×10−32). In our study, logistic regression analysis showed a strong association between rs6817105 and the risk of AF (additive model: OR=2.22, 95%CI=1.89–2.61, p=2.33×10−22; dominant model: OR=2.96, 95%CI: 2.16–4.07, p=2.03×10−11; recessive model: OR=2.83, 95%CI=2.27–3.54, p=4.00×10−20). Stratification analyses showed a borderline statistical difference between subgroups of age for the association of rs6817105 with AF risk (p=0.049). However, further interactive analysis indicated no significant interaction between genotype of rs6817105 and age (p=0.178).
Conclusion: Our finding suggested that SNP rs6817105 may be associated with a high significant risk of AF in the Chinese Han population, although more replicative studies of larger sample size are needed to confirm this finding. (Anatol J Cardiol 2016; 16: 662-6)

Keywords: PITX2, rs6817105, Chinese Han population, polymorphism, atrial fibrillation


Zhen Fang, Yaowu Liu, Buqing Ni, Xin-guang Chen, Liyan Zhao, Fengxiang Zhang. The rs6817105 polymorphism on chromosome 4q25 is associated with the risk of atrial fibrillation in the Chinese Han population. Anatol J Cardiol. 2016; 16(9): 662-666

Sorumlu Yazar: Fengxiang Zhang, Türkiye


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