NOD2 and type 2 diabetes mellitus: APIP, DDX3X, DHX9, and TNFRSF21 were significantly downregulated in the T2D group, whereas CASP1, GBP2, GSDMB, GSDMD, NLRP1, NOD2, PYCARD, TREM2, and ZBP1 were significantly upregulated in the T2D group.