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  • Title: Paraoxonase 1 and 2 gene variants and the ischemic stroke risk in Gran Canaria population: an association study and meta-analysis.
    Author: Rodríguez-Esparragón F, López-Fernández JC, Buset-Ríos N, García-Bello MA, Hernández-Velazquez E, Cappiello L, Rodríguez-Pérez JC.
    Journal: Int J Neurosci; 2017 Mar; 127(3):191-198. PubMed ID: 26978533.
    Abstract:
    PURPOSE OF THE STUDY: The present study aims to evaluate the relationship between rs662 (Gln(Q)192Arg(R)) and rs854560 (L55M) and the rs7493 (S311C) in the paraoxonase genes and ischemic stroke (IS) in the population of Gran Canaria (Canary Islands). The association with stroke was also evaluated using systematic review and meta-analysis. METHODS: A total of 129 IS patients and 176 age and gender matched controls were enrolled. For meta-analysis, eligible studies were identified through search in public databases. RESULTS: In multivariate regression analysis only the PON2 S311C variant showed to be an independent predictor of IS (OR = 0.093, 95% CI: 0.014-0.627). Overall, no significant association was found between L55M and IS when all studies were pooled nor by subgroup analysis by ethnicity. Gln192Arg showed a modest risk for IS in the global and in Asian population but with high heterogeneity among studies. A modest risk under a dominant inheritance model was found for the S311C variant with an overall random effect OR of 1.004 (95% CI: 1.00-1.35). There was strong evidence of heterogeneity among studies (  p = 0.0097, I2 = 25.35%) which did not disappear after stratification by ethnicity. CONCLUSIONS: The overall analysis shows a significant contribution of the rs662 variant to IS risk. We found that the CC genotype of the PON2 S311C polymorphism is a risk factor for IS. Results of the meta-analysis partially support this conclusion.
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