ABCC5 and type 2 diabetes mellitus: After removing the mismatched genes, the results showed that two genes (ABCC5 and WDR7) were significantly upregulated in T2DM and AS samples compared with standard samples (Figures 6A, B), and the AUC values of these two genes were more outstanding than 0.6, which provided better diagnostic effects (Figures 6C, D).