PPARA and diabetes mellitus: In addition, 16 pathways were significantly higher in the DM group than the anti-DM group, which included the “mTOR signaling pathway” and “PPAR signaling pathway,” and nine pathways were significantly lower in the DM group than the anti-DM group, such as “Arachidonic acid metabolism” and “Carbohydrate digestion and absorption” (p < 0.05) (Supplementary Figure S2C).