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  • Title: Association of AdipoQ single-nucleotide polymorphisms and smoking interaction with the risk of coronary heart disease in Chinese Han population.
    Author: Liang C, Yawei X, Qinwan W, Jingying Z, Aihong M, Yanqing C.
    Journal: Clin Exp Hypertens; 2017; 39(8):748-753. PubMed ID: 28737466.
    Abstract:
    AIMS: To investigate the impact of AdipoQ polymorphisms, and their additional interactions with smoking and drinking on coronary heart disease (CHD) risk based on Chinese population. METHODS: Hardy‒Weinberg equilibrium (HWE) was performed using SNPStats (available online at http://bioinfo.iconcologia.net/SNPstats ). Generalized multifactor dimensionality reduction (GMDR) model was used to screen the best gene‒gene and gene‒environment interaction combinations. Logistic regression was performed to investigate association between four single-nucleotide polymorphisms (SNPs) and CHD and the interaction effect between rs1501299 and smoking. RESULTS: Logistic analysis showed that CHD risks were higher in carriers with homozygous mutant of rs1501299 and rs2241766 than those with wild-type homozygotes, odds ratio (ORs) (95%CI) were 1.49 (1.19-1.95) and 1.71 (1.33-2.24), respectively, but CHD risks were lower in carriers with homozygous mutant of rs7649121 than those with wild-type homozygotes, OR (95%CI) was 0.72 (0.51-0.96). GMDR model indicated that there was a significant two-locus model (p = 0.0107) involving rs1501299 and current smoking, indicating a potential gene-environment interaction between rs1501299 and current smoking. Overall, the cross-validation consistency of this model was 9/10, and the testing accuracy was 60.11% (p = 0.0010). T-allele carriage had 42% prevalence, and one-quarter of them were current smokers. Smokers with rs1501299-GT or TT genotype have the highest CHD risk, compared to never-smokers with rs1501299-GG genotype, OR (95%CI) was 3.56 (1.91-5.42), after adjustment for gender, age, alcohol status, and body mass index. But we did not find any significant gene-gene and gene-drinking interaction combinations in GMDR models. CONCLUSIONS: Polymorphisms in rs1501299 and rs2241766, and their additional interactions between rs1501299 and smoking were associated with increased CHD risks: polymorphism in rs7649121 was associated with decreased CHD risks.
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