Figure 1. NOX4 expression in cancers. (A) The bar plot illustrates NOX4 mRNA expressions in various normal human tissues sourced from the TCGA and GTEx databases. (B) NOX4 mRNA expression levels in diverse cancer types based on TCGA databases; (*P < 0.05, **P < 0.01, ***P < 0.001, ****P < 0.0001).