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目的 初步探讨山东汉族人群ApoE基因112位点和158位点基因多态性与房颤发生的相关性.方法 经临床诊断为房颤患者92例(房颤组),同期体检者93例(对照组),收集所有患者一般临床资料,并收集全血,提取全血DNA,采用芯片法检测其ApoE基因112位点和158位点基因多态性.计数资料之间的比较采用χ2检验,计数小于5时选用Fisher精确检验法;计量资料比较均采用t检验;房颤发生相关多因素分析采用二元Logistic回归分析.结果 房颤组与对照组相比,ApoE基因112位点基因型频率、等位基因频率差异有统计学意义(P0.05);载脂蛋白E表型差异有统计学意义(P<0.05),ApoE4型者房颤发生率高.结论 山东汉族人群ApoE基因多态性与房颤发生具有一定的相关性,ApoE4是房颤的敏感表型,携带ApoE4型者罹患房颤的可能性更大.“,”Objective To investigate the association of the polymorphism of codon 112 and codon 158 in the ApoE gene and risk of atrial fibrillation(AF) in Han people of Shandong Province.Methods A total of 92 diagnosed AF ca-ses were included in the AF group and 93 hospitalized patients over the same period were selected as control group. The general clinical information and whole blood of all patients were collected, and then the genomic DNA was extracted. The polymorphisms of 112 locus and 158 locus in ApoE gene were detected with microarray. The count data were com-pared with chi square test and the Fisher exact test was used when the count was less than 5.The measurement data were compared with t test. The AF-related factors were analyzed with binary Logistic regression analysis. Results There were significant differences in the genotype frequency and allele frequency at codon 112 between the AF group and con-trol group(P0.05).There was statistical difference in the phenotype frequency of ApoE between the AF group and control group(P<0.05).People who carried ApoE4 had a higher risk of AF. Conclusion ApoE gene polymorphism is associated with the risk of AF among Han people in Shandong Province. ApoE4 is a sensitive phenotype and people who carry ApoE4 are more likely to develop AF than those who do not.