Interleukin 1 Gene Cluster, Myocardial Infarction at Young Age and Inflammatory Response of Human Mononuclear Cells
2009
The objective was to investigate whether genotypes, haplotypes and haplotype-pairs of interleukin (IL) gene cluster are associated with risk of Myocardial Infarction (MI) at young age and with the release of IL-1B and expression of tissue factor pro-coagulant activity (TFPCA), after stimulation in vitro with lipopolysaccharide (LPS) of human peripheral blood mononuclear cells (PBMCs). Patients with MI at young age, frequency-matched for age, sex and recruitment centre, with healthy population-based controls and PBMCs from healthy volunteers were studied. Five single nucleotide polymorphisms (SNPs), identifying two haplotype-blocks, in IL-1B gene and one SNP in IL-1A and IL-RA genes were genotyped. In multivariate analyses, haplotype A2 (122) and A4 (112) were associated with decreased risk of MI [OR = 0.62 (95% CI = 0.40–0.95), p = 0.01; OR = 0.69 (95% CI = 0.51–0.92), p = 0.03, respectively]. Haplotype-pair A2/A2 showed significant reduction in the risk of MI [OR = 0.38 (95% CI = 0.18–0.81); p = 0.01]. H...
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