Abstract
BackgroundCoronary artery disease (CAD) is the most frequent cause of morbidity and mortality in the world and it is known as a multifactorial disorder which is influenced by both genetic and environmental factors. Based on different assays, the platelet derived growth factor B (PDGF-B) gene is shown to be amongst the inflammation inducers involved in different pathological conditions such as atherosclerosis. AimIn this case-control study we have examined the association of the functional PDGF-B +286 and +1135 polymorphisms and its expression status with susceptibility to CAD. Subjects and methodsStudy groups included 369 patients with CAD and 413 healthy individuals. Genotypic and allelic frequencies of PDGF-B +286 and +1135 polymorphisms were determined by the SSP-PCR method. PDGF-B expression status was identified by quantitative real-time PCR. ResultsThe analysis of genotyping results revealed CAD patients had an increased frequency of PDGF-B +286A>G A/A genotype in comparison with healthy individuals. Furthermore, we found that the PDGF-B expression level in CAD patients group is nearly 2-folds greater than its level in control group. ConclusionThere is probably a relationship between variations in PDGF-B gene and CAD influence. The increase in PDGF-B gene expression may has a role in susceptibility to CAD.
Published Version
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