Synergism between paraoxonase Arg 192 and the angiotensin converting enzyme D allele is associated with severity of coronary artery disease |
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Authors: | Asad Vaisi-Raygani Zohreh Rahimi Haidar Tavilani Hadiss Vaisi-Raygani A. Kiani M. Aminian E. Shakiba Y. Shakiba Tayebeh Pourmotabbed |
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Affiliation: | (1) Molecular Diagnostic Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran;(2) Fertility and Infertility Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran;(3) Department of Clinical Biochemistry, Kermanshah University of Medical Sciences, Daneshgah Avenue, P.O. Box 6714869914, Kermanshah, Iran;(4) Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran;(5) Department of Clinical Biochemistry, Hamadan University of Medical Sciences, Hamadan, Iran;(6) Department of Chemistry, Azad University of Kermanshah, Kermanshah, Iran;(7) Molecular Diagnostic Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran;(8) Department of Clinical Biochemistry, Tehran University of Medical Sciences, Tehran, Iran;(9) Department of Molecular Sciences, University of Tennessee Health Science Center, Memphis, USA |
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Abstract: | We have previously shown that angiotensin-converting enzyme (ACE) gene D allele is an independent risk factor for early onset coronary artery disease (CAD). Little is known about the concomitant presence of the ACE gene D allele and paraoxonase (PON1) codon 192 arginine (Arg) on the severity of CAD. Regarding the high rate of CAD among Iranians the aim of present study was to examine the hypothesis of synergistic effects between ACE-D and PON1-Arg alleles on predisposition and the severity of CAD in our population. The PON1 192 and ACE insertion/deletion (I/D) genotypes were detected by PCR-RFLP and PCR, respectively in 414 individuals undergoing their first coronary angiography. Patients were placed into one of two groups: CAD and control without CAD or diabetes. We mentioned the synergistic effects of both genes and not ACE gene alone is a risk factor for CAD. We found that PON1 Arg 192 and ACE D allele act synergistically to increase the risk of CAD (OR 1.3, P = 0.044). Our results showed a significant correlation between the possession of both PON1 192 Arg and the ACE D allele and the extent of CAD in CAD patients and CAD subjects without diabetes, represented by the increased frequency of three-vessel disease with OR 2.7, P = 0.046; χ2 = 4, P = 0.046 and OR 2.4, P = 0.051; χ2 = 3.8, P = 0.051, respectively. We found that PON1 Arg 192 and ACE D alleles act synergistically to increase the risk of CAD in CAD patients and CAD subjects without diabetes from west of Iran, who have high frequency of three-vessel disease. Our data suggest that PON1 192 Arg and the ACE D allele in combination with each other can be important independent risk factor for severity of CAD in patients carrying both PON1 192 Arg and the ACE D allele in a west population of Iran. |
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