Patients with T2D showed statistically significantly higher serum levels of MMP-2 (30.68 ± 1.87 vs. 36.22 ± 1.50; p = 0.026), MMP-9 (25.84 ± 2.83 vs. 38.48 ± 2.69; p = 0.002), and AEAbs IgA (0.29 ± 0.03 vs. 0.55 ± 0.05; p < 0.001) than healthy controls (Figure 1A,B and Figure 2A). Here, MMP9 is linked to type 2 diabetes mellitus.