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  • Title: Factor V G1691A, prothrombin G20210A and methylenetetrahydrofolate reductase polymorphism C677T are not associated with coronary artery disease and type 2 diabetes mellitus in western Iran.
    Author: Rahimi Z, Nomani H, Mozafari H, Vaisi-Raygani A, Madani H, Malek-Khosravi S, Parsian A.
    Journal: Blood Coagul Fibrinolysis; 2009 Jun; 20(4):252-6. PubMed ID: 19349859.
    Abstract:
    There are controversial results related to the contribution of factor V Leiden G1691A, prothrombin gene G20210A and methylentetrahydrofolate reductase (MTHFR) C677T mutations in the development of coronary artery disease (CAD) and their association with diabetes. To assess the distribution of these thrombophilic mutations in CAD patients with and without type 2 diabetes mellitus (T2DM), we studied 117 CAD patients [65 CAD patients with diabetes (CAD/T2DM) and 52 CAD patients without diabetes (CAD/ND)] and 59 age-matched and sex-matched healthy individuals without CAD from population of western Iran. Genotyping was done by polymerase chain reaction (PCR)-restriction fragment length polymorphism using Mnl I, Hind III and Hinf I for factor V Leiden, prothrombin G20210A and MTHFR C677T, respectively. The prevalence of prothrombin G20210A variant in CAD/T2DM, CAD/ND and control individuals was 3.1, 1.9 and 0%, respectively. Factor V Leiden G1691A was found in 4.6% of patients with CAD/T2DM, 3.8% of patients with CAD/ND and 3.4% of healthy individuals. The prevalence of MTHFR C677T was found to be 49.2, 32.7 and 44.1% in CAD/T2DM, CAD/ND and control group, respectively. Our results indicate that there is no significant difference between the prevalence of thrombophilic mutations of factor V Leiden, prothrombin G20210A variant and MTHFR C677T in CAD patients with or without diabetes compared with controls. Although a higher prevalence of these thrombophilic mutations was observed in CAD patients, especially in those patients with diabetes, it seems that these variants may not be considered as independent risk factors for CAD or diabetes in our sample. These findings are discussed in relation to available literature.
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