Fig. 4From: Hypermethylation of the glutathione peroxidase 4 gene promoter is associated with the occurrence of immune tolerance phase in chronic hepatitis BThe associations between GPX4 promoter methylation level and mRNA level in PBMCs, and GPX4 expressive in serum. Significant correlation was observed between the PMR value of GPX4 promoter and mRNA level in PBMCs (a Spearman’s r = − 0.4613, P<0.0001), and GPX4 expressive in serum (b Spearman’s r = − 0.4108, P<0.0001), ns, P>0.05; *, P ≤ 0.05; **, P ≤ 0.01; ***, P ≤ 0.001; ****, P ≤ 0.0001Back to article page