Fig. 3

Differentially expressed genes (DEGs) after 4 weeks of exposure to 30 µg/ml diesel exhaust particles (DEP). The volcano plot shows gene expression by log2 fold-change (logFC) relative to the adjusted p-value. The horizontal and vertical black lines represent the adjusted p-value threshold at 0.05 and the |logFC| threshold at 0.6, respectively. The adjusted p-values were calculated by differential methylation analysis between the control group (n = 4) and the 30 µg/ml DEP-treated group (n = 4). Gene symbols indicate the genes mentioned in the paper