TGFB2 and type 2 diabetes mellitus: Further correlation analyses demonstrated that the total plaque levels of free TGF-β2 protein correlated to total plaque levels of collagens in both ND plaques and T2D plaques (r = 0.24, p = 0.003 and r = 0.41, p = 4.0 × 10−4 respectively; Fig. 4b).