TGFB1 and diabetes mellitus: The IL15/TGFβ ratio decreased with stenosis severity in diabetes−HCMV−, diabetes+HCMV−, and diabetes+HCMV+, but not in diabetes−HCMV+, patients (Figure 5(G.i)) 4, and NK cell SPON2 expression displayed an opposite trend (Figure 5(G.ii)).