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Relationship between the TaqI B polymorphism of the cholesterol ester transfer protein gene and atrial fibrillation in Han and Kazak populations

Author(s): M. Bakeyi1, M. Wulasihan1, W.H. Lu1,2, Y.C. Yang1, J. Li1, Z.Q. Liu1 and P.Y. He1

The TaqI B polymorphism in the cholesterol ester transfer protein (CETP) (B1 and B2 alleles; rs708272) is associated with changes in enzyme activity and lipid concentrations. The B1 allele of the CETP gene is a known independent risk factor for genetic susceptibility to atrial fibrillation (AF); however, little is known about this polymorphism in the minority groups of Xinjiang, China. We examined the role of this polymorphism in AF using two independent case-control studies: the Han population (101 AF patients and 129 control subjects) and the Kazak population (103 AF patients and 101 control subjects). Carriers of the B1B1 genotype were more frequent among AF patients than among controls both in the Han population (34.7 versus 26.4%; χ2 = 10.686, P = 0.001) and in the Kazak population (53.4 versus 24.8%; χ2 = 27.802,