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  • Title: [Association of KCNE1 and KCNE4 gene polymorphisms with atrial fibrillation among Uygur and Han Chinese populations in Xinjiang].
    Author: Miao H, Zhou X, Kabinur K, Zou T, Palida A, Tang B.
    Journal: Zhonghua Yi Xue Yi Chuan Xue Za Zhi; 2017 Oct 10; 34(5):743-748. PubMed ID: 28981946.
    Abstract:
    OBJECTIVE: To assess the association of KCNE1 (rs1805127) and KCNE4 (rs12621643) polymorphisms with atrial fibrillation (AF) among ethnic Uygur and Han Chinese in Xinjiang. METHODS: A case-control study was carried out. The patients and controls were selected based on ethnicity, gender and age with an 1:1 ratio. DNA was extracted from peripheral blood samples. Genotypes of KCNE1 (rs1805127) and KCNE4 (rs12621643) were determined with a polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) assay. RESULTS: Multivariate Logistic regression analysis showed KCNE1 (rs1805127) to be an independent risk factor for AF among Uygurs, while KCNE4 (rs12621643) was a risk factor for both Uygur and Han patients with AF (P < 0.05). The population attributable risk percentage (PARc%) of obstructive sleep apnea hpoventilation syndrome, obesity, hypertension, cholesterol, Hcy, hs-CRP, IL-6, KCNE1 (rs1805127) and KCNE4 (rs12621643) were 9.68%, 12.06%, 15.76%, 6.91%, 11.37%, 17.78%, 9.31%, 11.27% and 6.46% among the Uygurs, respectively. The PARc% of drinking, hypertension, cholesterol, Hcy, hs-CRP, IL-6, and KCNE4 (rs12621643) were 12.94%, 14.48%, 7.24%, 8.49%, 17.29%, 9.49% and 7.41% among Hans. CONCLUSION: The KCNE1 (rs1805127) appears to an independent risk factor for AF in the Uygur population. And the KCNE4 (rs12621643) was an independent risk factor for AF among both Uygurs and Hans. Management of the risk factors of AF based on testing of "risk genes" may have an impact on the prevention and treatment of AF.
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