Fig. 4From: H558R, a common SCN5A polymorphism, modifies the clinical phenotype of Brugada syndrome by modulating DNA methylation of SCN5A promotersExpression levels of the SCN5A gene (using GAPDH as a reference gene), according to the presence or absence of H558R. The expression level of SCN5A was significantly higher in patients with H558R than in those withoutBack to article page