Identification of T2D-related differentially methylated genes. The distributions of the genome-wide DNA methylation for control and T2D were compared shown in (A) and (B). (C) The unsupervised hierarchical clustering heatmap of T2D and control samples, red bar represents the T2D samples and blue bar represents the control samples. (D) Comparison of the DNA methylation levels for the T2D-related differentially methylated genes in T2D and control groups. The red colour represents the T2D samples and the blue colour represents the control samples.