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  • Title: Influence of cholesteryl ester transfer protein, peroxisome proliferator-activated receptor alpha, apolipoprotein E, and apolipoprotein A-I polymorphisms on high-density lipoprotein cholesterol, apolipoprotein A-I, lipoprotein A-I, and lipoprotein A-I:A-II concentrations: the Prospective Epidemiological Study of Myocardial Infarction study.
    Author: Do HQ, Nazih H, Luc G, Arveiler D, Ferrières J, Evans A, Amouyel P, Cambien F, Ducimetière P, Bard JM.
    Journal: Metabolism; 2009 Mar; 58(3):283-9. PubMed ID: 19217440.
    Abstract:
    The plasma level of high-density lipoprotein cholesterol (HDL-C) is known to be inversely associated with cardiovascular risk. However, besides lifestyle, gene polymorphism may influence the HDL-C concentration. The aim of this study was to investigate the possibility of interactions between CETP, PPARA, APOE, and APOAI polymorphisms and HDL-C, apolipoprotein (apo) A-I, lipoprotein (Lp) A-I, and Lp A-I:A-II in a sample selected from the Prospective Epidemiological Study of Myocardial Infarction (PRIME) study population who remained free of cardiovascular events over 5 years of follow-up. Healthy individuals (857) were randomly selected for genotyping the PRIME study subjects. The population was selected so as to provide 25% of subjects in the lowest tertile of HDL-C (< or = 28 mg/dL) in the whole PRIME study sample, 25% of subjects in the highest tertile of HDL-C (> or = 73 mg/dL), and 50% of subjects in the medium tertile of HDL-C (28-73 mg/dL). Genotyping was performed by using a polymerase chain reaction system with predeveloped TaqMan allelic discrimination assay. The CETP A373P rare allele c was less frequent in the group of subjects with high HDL-C, apo A-I, Lp A-I, and Lp A-I:A-II concentrations. Apolipoprotein A-I and Lp A-I were also found to be higher in the presence of the epsilon2 allele coding for APOE. The effect of the CETP A373P rare allele c on HDL-C was independent of all tested parameters except triglycerides. The respective effect of these polymorphisms and triglycerides on cardiovascular risk should be evaluated prospectively.
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