Genetics
CETP -629A is one of only two individual gene variants, out of 58 tested, that protect against myocardial infarction (Eur Heart J 2004)
Original title: Genotypes and haplotypes predisposing to myocardial infarction: a multilocus case-control study
This multilocus case-control study investigated polymorphisms and haplotypes in candidate genes predisposing to myocardial infarction (MI), studying 547 acute MI cases and 505 controls (1052 total subjects) for associations between MI and 58 SNPs across 35 candidate genes (61 016 individual genotypes), plus haplotypes at 14 loci spanning 16 genes. Two individual gene variants and haplotypes at two loci showed statistical association with MI: the alpha-adducin 460trp variant (OR 0.73, 95% CI 0.59-0.91, P=0.006) and the CETP -629A variant (OR 0.82, 95% CI 0.68-0.97, P=0.025) were both significantly protective against MI, as was a paraoxonase 1/paraoxonase 2 haplotype (OR 0.52, 95% CI 0.39-0.77, P=0.001). Two APOC3 haplotypes were associated with increased MI risk (OR 1.41 and 1.71). The authors conclude these associations warrant testing in future studies and demonstrate the value of multilocus and haplotype approaches for identifying coronary heart disease risk variants.
Original abstract
Aim: To identify polymorphisms and haplotypes in candidate genes that predispose to myocardial infarction (MI) using a multilocus approach.
Methods And Results: 1052 subjects, comprising 547 acute MI cases and 505 controls were studied. The association between MI and 58 SNPs in 35 candidate genes (generating 61 016 individual genotypes), and between MI and estimated haplotypes at 14 loci encompassing 16 genes was investigated. Two individual gene variants and haplotypes at two loci showed statistical association with MI. The alpha-adducin 460trp variant (OR 0.73, 95% CI 0.59-0.91, P=0.006) and the cholesteryl ester transfer protein -629A variant (OR 0.82, 95% CI 0.68-0.97, P=0.025) were both associated with a significant protective effect on MI, as was the paraoxonase 1/paraoxonase 2 haplotype comprising met55 and gln192 in paraoxonase 1 and cys311 in paraoxonase 2 (OR 0.52, 95% CI 0.39-0.77, P=0.001). The apolipoprotein C III haplotypes CCTTCG and ATCCCG at positions -641*-482*-455*1100*3175*3206 were associated with an increased risk of MI, odds ratios 1.41 (95% CI 1.06-1.76, P=0.023) and 1.71 (95% CI 1.28-2.14, P=0.038), respectively.
Conclusions: We report associations of two polymorphisms and haplotypes at two loci with risk of MI that warrants testing in future studies. Furthermore, we demonstrate the application of a multilocus assay in the setting of a large association study and the additional benefit gained from the study of haplotypes to identify variants influencing risk of coronary heart disease.
Summary written by cetpinhibition.org from the published abstract; figures as published. Page updated 19 August 2026. Methods.