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- W2121539399 abstract "Introduction: Nonfamiliar atrial fibrillation (AF) is usually associated with acquired structural heart disease, including valvular heart disease, coronary artery disease, and hypertension. Suggestive evidence indicates that these forms of acquired AF are more likely to occur in individuals with a genetic predisposition. We investigated the effect of the potassium channel voltage‐gated subfamily member 2 ( KCNH2 ) gene on the prevalence of acquired AF in a Chinese population. Methods: In a pair‐matched, hospital‐based case control study (297 vs 297) conducted in Chinese Hans, we investigated 4 tagging single nucleotide polymorphisms (tSNPs), rs1805120, rs1036145, rs3807375, and rs2968857 in the KCNH2 gene, and determined their association with AF acquired from structural heart diseases. Results: We did not observe the association of rs1036145, rs3807375, and rs2968857 with AF. However, we determined that the tSNP, rs1805120, in exon 6 confers the risk of AF in Chinese Hans. Both genotype and allele frequencies of rs1805120 were distributed differently in cases and controls (P = 0.0289 and P = 0.0172, respectively). The most significant association was observed under a recessive model for the minor GG genotype with a 1.45‐fold risk of developing AF (95% confidence interval 1.09–1.93, P = 0.012). The significance remained after controlling for the covariates of age, smoking, BMI, hypertension, and diabetes. Conclusion: We report a new genetic variation (rs1805120) in the KCNH2 gene that predisposes Chinese Han individuals to the risk of acquired AF. Further genetic and functional studies are required to identify the etiological variants in linkage disequilibrium with this polymorphism." @default.
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- W2121539399 date "2009-10-01" @default.
- W2121539399 modified "2023-10-18" @default.
- W2121539399 title "Genetic Polymorphism of KCNH2 Confers Predisposition of Acquired Atrial Fibrillation in Chinese" @default.
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- W2121539399 doi "https://doi.org/10.1111/j.1540-8167.2009.01494.x" @default.
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