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  • Title: Association of the -757T>C polymorphism in the CRP gene with circulating C-reactive protein levels and carotid atherosclerosis.
    Author: Ben Assayag E, Shenhar-Tsarfaty S, Bova I, Berliner S, Usher S, Peretz H, Shapira I, Bornstein NM.
    Journal: Thromb Res; 2009 Sep; 124(4):458-62. PubMed ID: 19428053.
    Abstract:
    INTRODUCTION: C-reactive protein (CRP) is an inflammatory protein that may play a role in the pathogenesis of atherosclerosis. CRP gene single nucleotide polymorphisms (SNPs) have been shown to be associated with CRP concentration; however, their independent effect on atherosclerosis has not been yet established. We aimed to determine whether the 5'-flanking -757T>C CRP gene polymorphism is associated with CRP concentration and carotid atherosclerosis. METHODS: We genotyped the -757T>C CRP gene SNP and determined the concentration of serum CRP, the intima-media thickness (IMT) of the common carotid artery and the existence of plaque/s in 612 apparently healthy men and women aged 66+/-10 years. RESULTS: Carriers of the CRP -757C allele presented with higher IMT and higher CRP concentrations (p=0.002, p=0.042, respectively). After adjustment for vascular risk factors, linear regression analysis showed an independent effect of CRP -757C allele on carotid IMT, beyond serum CRP concentrations. This SNP was also associated with carotid plaque occurrence (O.R. 1.74, 95% CI 1.1-2.77, p=0.002). CONCLUSIONS: The present study provides evidence that a genetic variant of CRP gene is associated with carotid atherosclerosis, independently of traditional vascular risk factors. Further large-scale genomic studies are required, which may identify the genetic vulnerable subjects to develop atherosclerosis.
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