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Background

The gene zinc finger homeobox 3 (ZFHX3) encodes a transcription factor with cardiac expression and its genetic variants are associated with atrial fibrillation (AF). We aimed to explore the associations between single nucleotide polymorphisms (SNPs) of ZFHX3 and the risk of AF in a Chinese Han population.

Methods

We genotyped eight SNPs, including seven potentially functional SNPs and one previously reported SNP by using the middle-throughput iPLEX Sequenom MassARRAY platform. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated in logistic regression models.

Results

We enrolled a total of 1,593 Chinese Han origin individuals in the study, including 597 AF patients and 996 non-AF controls. Logistic regression analyses revealed that potentially functional SNPs rs6499600 and rs16971436 were associated with a decreased risk of AF (adjusted OR  = 0.73, 95% CI: 0.63-0.86, P = 1.07×10-4; adjusted OR  = 0.74, 95% CI: 0.56-0.98, P = 0.039, respectively). In addition, rs2106261 showed a robust association with an increased risk of AF (adjusted OR  = 1.71, 95% CI: 1.46-2.00, P = 1.85×10-11). After multiple comparisons, rs16971436 conferred a borderline significant association with the risk of AF. Stratification analysis indicated that the risks of AF were statistically different among subgroups of age for rs2106261, and the effect for rs16971436 was more evident in subgroups of patients with coronary artery disease.

Conclusion

In summary, our study investigated the role of genetic variants of ZFHX3 in AF and two SNPs (rs2106261, rs6499600) showed significant associations while rs16971436 conferred a borderline significant association with AF risk in Chinese Han populations. However, further large and functional studies are warranted to confirm our findings."xsd:string
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http://purl.uniprot.org/citations/24983873http://purl.uniprot.org/core/author"Liu Y."xsd:string
http://purl.uniprot.org/citations/24983873http://purl.uniprot.org/core/author"Hu Z."xsd:string
http://purl.uniprot.org/citations/24983873http://purl.uniprot.org/core/author"Lin Y."xsd:string
http://purl.uniprot.org/citations/24983873http://purl.uniprot.org/core/author"Fang Z."xsd:string
http://purl.uniprot.org/citations/24983873http://purl.uniprot.org/core/author"Zhang F."xsd:string
http://purl.uniprot.org/citations/24983873http://purl.uniprot.org/core/author"Zhao L."xsd:string
http://purl.uniprot.org/citations/24983873http://purl.uniprot.org/core/author"Ni B."xsd:string
http://purl.uniprot.org/citations/24983873http://purl.uniprot.org/core/author"Chen X.G."xsd:string
http://purl.uniprot.org/citations/24983873http://purl.uniprot.org/core/date"2014"xsd:gYear
http://purl.uniprot.org/citations/24983873http://purl.uniprot.org/core/name"PLoS One"xsd:string
http://purl.uniprot.org/citations/24983873http://purl.uniprot.org/core/pages"e101318"xsd:string
http://purl.uniprot.org/citations/24983873http://purl.uniprot.org/core/title"Genetic polymorphisms in ZFHX3 are associated with atrial fibrillation in a Chinese Han population."xsd:string
http://purl.uniprot.org/citations/24983873http://purl.uniprot.org/core/volume"9"xsd:string
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