APOC1 and type 2 diabetes mellitus: Additionally, peroxisome proliferator-activated receptor γ (PPARγ), apolipoprotein A2 (Apoa2), apolipoprotein C1 (Apoc1), carnitine palmitoyl transferase 1B (Cpt1b), fatty acid binding protein 5 (Fabp5) (related to the PPAR signaling pathway), insulin receptor substrate 3 (Irs3) (related to T2DM), and isopentenyl-diphosphate delta isomerase 1 (Idi1) cytochrome P450, family 2, subfamily c, polypeptide 22 (Cyp2c22) (related to terpenoid biosynthesis and retinol metabolism) were analyzed, as shown in Figure 8A.