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Coronary heart disease (CHD) is a common chronic inflammatory disease. Interleukin (IL)-7/IL-7R has been reported to be involved in the development of CHD. However, the relationship between IL-7/7R genetic polymorphisms and CHD among the Han Chinese population remains unclear. To examine whether IL-7/7R variants contributed to CHD, six single-nucleotide polymorphisms (SNPs) were genotyped by using the Agena MassARRAY platform in 499 CHD patients and 496 controls. Logistic regression was used to calculate the odds ratios (ORs) and 95% confidence intervals (CIs). The linkage disequilibrium was analyzed using Haploview software. The association between clinical parameters and IL-7/7R polymorphisms was determined by a one-way ANOVA. IL-7R rs969129 G (OR = 1.20, 95% CI: 1.00-1.43, p = 0.047) allele and GG (OR = 1.45, 95% CI: 1.01-2.08, p = 0.044) genotype carriers had a higher risk for CHD. IL-7R haplotype "ACAG" (OR = 1.43, 95% CI: 1.09-1.87, p = 0.010) conferred an increased CHD risk. Rs969129, rs6451231, and rs117173992 were related to CHD susceptibility in males and/or the subgroup of individuals aged >61 years. IL-7R rs969129, rs10053847, rs6451231, and rs118137916 variants were associated with diabetes in patients with CHD. Moreover, rs969129, rs6451231, and rs117173992 were associated with high-density lipoprotein cholesterol (HDL-C) concentrations, whereas rs118137916 and rs10053847 were associated with low-density lipoprotein cholesterol (LDL-C) levels (p < 0.05). IL-7/7R variants were related to the genetic predisposition of CHD in the Chinese Han population. These findings increase our knowledge regarding the effect of IL-7/7R on CHD. Copyright © 2019 Elsevier B.V. All rights reserved.


Yuxiao Sun, Jifeng Yan, Jiliang Zhang, Aifeng Wang, Jie Zou, Chuanyu Gao. Contribution of IL-7/7R genetic polymorphisms in coronary heart disease in Chinese Han population. International immunopharmacology. 2020 Feb;79:106084

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PMID: 31865243

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