Key result
Coronary artery disease in Saudi patients was associated with significantly elevated serum IL-6 levels compared to healthy controls (P<.001), with no significant differences in promoter SNPs.
Why the study?
Does genetic diversity in IL-6 and RANTES promoters or their serum levels differ between CAD patients and healthy controls in a Saudi population?
Case-Control (n=200)
Does genetic diversity in IL-6 and RANTES promoters or their serum levels differ between CAD patients and healthy controls in a Saudi population?
SNP variations in IL-6 and RANTES promoters may associate with CAD; hypothesis-generating and requires prospective validation before clinical use.
BACKGROUND: The present study consisted of a total of 200 subjects (100 confirmed coronary artery disease (CAD) patients), both men and women, and 100 healthy control individuals. METHODS: Serum concentration of IL-6 and RANTES were measured by enzyme-linked immunosorbent assay kit. For SNPs analysis, sanger method of DNA sequencing was followed. RESULTS: We observed variable numbers of SNP sites at -174 G/C, -572 G/C, and -597 G/A in IL-6 and -28 C/G and -109 C/T in RANTES promoters in CAD patients compared with control individuals. However, the observed changes in the number of SNPs were found to be non-significant compared with control individuals. The IL-6 level was found to be significantly (P<.001) elevated in CAD patients compared with control. Moreover, RANTES serum level did not show any significant change in CAD patients. CONCLUSION: Based on our result, it is quite clear that inflammation has a role in the pathogenesis of CAD but does not lead to significant changes at the genetic level in our population. As far as our knowledge goes, this is the first report that shows the genetic diversity in IL-6 and RANTES promoters and their respective levels in Saudi CAD patients.
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Jabir et al. (2016) conducted a case-control in Coronary artery disease (n=200). Coronary artery disease vs. Healthy controls was evaluated on Genetic diversity in IL-6 and RANTES promoters and serum concentrations (p=<.001). Coronary artery disease in Saudi patients was associated with significantly elevated serum IL-6 levels compared to healthy controls (P<.001), with no significant differences in promoter SNPs.
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