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Correlation of rs1122608 SNP with acute myocardial infarction susceptibility and clinical characteristics in a Chinese Han population: A case-control study [Anatol J Cardiol]
Anatol J Cardiol. 2018; 19(4): 249-258 | DOI: 10.14744/AnatolJCardiol.2018.35002  

Correlation of rs1122608 SNP with acute myocardial infarction susceptibility and clinical characteristics in a Chinese Han population: A case-control study

Quan-fang Chen1, Wei Wang2, Zhou Huang2, Dong-ling Huang2, Tian Li2, Fan Wang2, Jun Li2
1Department of Institute of Respiratory Disease, The First Affiliated Hospital, Guangxi Medical University; Guangxi-People’s Republic of China
2Department of Emergency, The First Affiliated Hospital, Guangxi Medical University; Guangxi-People’s Republic of China

Objective: The correlation of the BRG1 rs1122608 single nucleotide polymorphism (SNP) with acute myocardial infarction (AMI) has been reported in American and European populations. However, whether rs1122608 acts as a protective factor or a risk factor for AMI is controversial. In this study, we aimed to detect the associations between rs1122608 and the clinical characteristics of AMI as well as susceptibility, gene–environment interactions, and risk factors for AMI in a Chinese Han population.
Methods: In this study, 300 AMI patients and 300 healthy controls of Chinese Han ancestry were enrolled. PCR-RFLP was used to genotype rs1122608 SNPs. Genotypic and allelic frequencies of rs1122608 were compared between the AMI and control groups and among four AMI subgroups, which were subdivided by typical symptom, diagnosis time (DT), infarction location andserious complication.
Results: Significant differences were detected between the AMI patients and the controls in both the genotypic and allelic frequencies of rs1122608 (p<0.001 for each). There were also interactions between the subjects with a minor T allele and smoking or alcohol consumption (p<0.001 for each).
Conclusion: In the Chinese Han study population, the mutant GT and TT genotypes and minor T allele of rs1122608 were positively correlated with the risk of AMI. For the first time, we discovered that the GT genotype of the rs1122608 SNP is significantly correlated with diagnosis time of AMI. In addition, the interactions between the minor T allele of rs1122608 and smoking or alcohol use and between the rs1122608 CC genotype and alcohol use appear to increase the risk of AMI.

Keywords: acute myocardial infarction, single nucleotide polymorphism, susceptibility, risk factor, clinical feature, gene–environment interaction


Quan-fang Chen, Wei Wang, Zhou Huang, Dong-ling Huang, Tian Li, Fan Wang, Jun Li. Correlation of rs1122608 SNP with acute myocardial infarction susceptibility and clinical characteristics in a Chinese Han population: A case-control study. Anatol J Cardiol. 2018; 19(4): 249-258

Corresponding Author: Wei Wang, China


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