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  • Title: Methionine sulfoxide reductase A rs10903323 G/A polymorphism is associated with increased risk of coronary artery disease in a Chinese population.
    Author: Gu H, Chen W, Yin J, Chen S, Zhang J, Gong J.
    Journal: Clin Biochem; 2013 Nov; 46(16-17):1668-72. PubMed ID: 23880405.
    Abstract:
    OBJECTIVE: Coronary artery disease (CAD) is a complex disease resulting from a combination of environmental and genetic factors. We hypothesized that polymorphisms in methionine sulfoxide reductase A (MSRA: rs10903323 G/A) and vascular endothelial growth factor A (VEGFA: rs699947 C/A, rs2010963 G/C, and rs3025039 C/T) contribute to CAD susceptibility. DESIGNS AND METHODS: We examined the association between the four polymorphisms and the risk of CAD in a Chinese population of 435 CAD patients and 480 controls. Genotyping was performed using matrix-assisted laser desorption ionization/time-of-flight mass spectrometry (MALDI/TOF-MS). RESULTS: When the MSRA rs10903323 GG homozygous genotype was used as the reference group, the GA and GA/AA genotypes were associated with a significantly increased risk of CAD (GA vs GG: adjusted OR=1.36, 95% CI=1.02-1.82, p=0.038; GA/AA vs GG: adjusted OR=1.33, 95% CI=1.01-1.76, p=0.042). The AA homozygous genotype was not associated with a risk of CAD. In the recessive model, when the MSRA rs10903323 GG/GA genotypes were used as the reference group, the AA homozygous genotype was not associated with a risk of CAD. Logistic regression analyses revealed that the VEGFA rs699947 C/A, VEGFA rs2010963 G/C, and VEGFA rs3025039 C/T polymorphisms were not associated with a risk of CAD. CONCLUSIONS: These findings suggest that the functional MSRA rs10903323 G/A polymorphism is associated with CAD development. However, our results allow only a preliminary conclusion, which must be validated with a larger study of a more diverse ethnic population.
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