Paraoxonase-1 Q192R polymorphism and its association with hs-CRP and fasting blood glucose levels and risk of coronary artery disease

M. Amini, S. Esmaeilzadeh-bahabadi, A. Avan, A. Gholoobi, F. Ghasemi, S.R. Mirhafez, H. Ghazizadeh, M. Moohebati, M. Ebrahimi, G.A. Ferns, A. Pasdar* (Corresponding Author), M.G. Mobarhan* (Corresponding Author)

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Paraoxonase-1 (PON1) has been shown to protect low-density lipoprotein cholesterol (LDL-C) and high-density lipoprotein cholesterol (HDL-C) against oxidative-modification and thereby might protect against coronary-artery-disease (CAD). Here we explored the relationship of a genetic variant (a substitution (R) Arg with (Q) Gln at position 192) of PON1 in 250 patients with/without CAD.

Materials and methods
Genotyping of PON1 Q192R was carried out using Real-Time-PCR TaqMan-based-probe. Demographic-characteristics and biochemical-analyses, including fasting blood sugar (FBS), HDL, LDL, triglycerides (TG) and C-reactive protein (CRP) were evaluated. Univariate/multivariate analyses were performed to determine the association of the genetic polymorphism and CAD as well as with clinical-characteristics of population.

Our findings showed that RR-genotype was more frequent in CAD-patients, compared to the wild-type genotype. Moreover, CAD patients with RR-genotype had an odd ratio of 5.0 (95% CI: 1.3–18.6; p = 0.017), versus wild-type genotype, in multivariate-analysis. Of note we also observed that CAD-patients with QQ-genotype had a significantly lower Hs-CRP level, compared to the RR-genotype.

we demonstrate that PON1-Q192R-polymorphism was associated with CRP and FBS levels; R-allele of PON1-Q192R may be an independent risk factor for CAD. Further studies are warranted to determine the value of this marker as a surrogate marker in CAD patients.
Original languageEnglish
Pages (from-to)1053-1057
JournalDiabetes and Metabolic Syndrome: Clinical Research and Reviews
Issue number2
Early online date19 Jan 2019
Publication statusPublished - Mar 2019

Bibliographical note

Grant: This study was supported by a grant from Mashhad University of Medical Sciences (Grant number: 930834).

Acknowledgments: We would like to thank Mashhad University of Medical Science Research Council for their financial supports

Data Availability Statement

Supplementary data to this article can be found online at


  • Coronary artery disease
  • Polymorphism
  • Paraoxonase
  • Real time PCR


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