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  • Title: Intercellular adhesion molecule-1 K469E polymorphism and risk of coronary artery disease: a meta-analysis.
    Author: Zou S, Pan X, Chen Z, Wei C, He B, Zhang H.
    Journal: Med Sci Monit; 2014 Dec 15; 20():2677-82. PubMed ID: 25503951.
    Abstract:
    BACKGROUND: Intercellular adhesion molecule-1 (ICAM-1) K469E polymorphism has been implicated in susceptibility to coronary artery disease (CAD). Several studies investigated the association of this polymorphism with CAD in different populations but the results were contradictory. A meta-analysis was conducted to assess the association between ICAM-1 K469E polymorphism and CAD susceptibility. MATERIAL AND METHODS: Databases including PubMed, EMBASE, China National Knowledge Infrastructure (CNKI), and Weipu Database were searched to find relevant studies. Odds ratios (ORs) with 95% confidence intervals (CIs) were used to assess the strength of associations. A random-effects model was used. RESULTS: Fifteen case-control studies including 3088 cases and 3466 controls were included. Overall, a significant association between ICAM-1 K469E polymorphism and CAD was observed in the dominant model (OR=1.80; 95% CI 1.62-2.01; P<0.00001; Pheterogeneity=0.40). In subgroup analysis by ethnicity, a significant association was found among Asians (OR=1.92; 95% CI 1.51-2.43; P<0.00001; Pheterogeneity=0.98) and among Caucasians (OR=1.64; 95% CI 1.30-2.08; P<0.0001; Pheterogeneity=0.04). In the subgroup analysis by age, a significant association was found among young patients (OR=1.46; 95% CI 1.10-1.93; P=0.008; Pheterogeneity=0.21) and old patients (OR=1.92; 95% CI 1.75-2.10; P<0.00001; Pheterogeneity=0.99). Conclusions Results of this meta-analysis suggest that ICAM-1 K469E polymorphism confers a risk factor of CAD.
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