Altered plasma MMP-2 activity was not associated with T2D (Supplementary Materials, Figure S3A) or F-GLP-1 (Supplementary Materials, Figure S3B,C, respectively), although a negative association with TNF-α was observed in the T2D group (r = −0.5746, p < 0.05, Figure 3f). The gene discussed is GCG; the disease is type 2 diabetes mellitus.