FGL2 and type 2 diabetes mellitus: However, IL-33 was directly correlated with fibrinogen-like protein 2 (FGL2) in individuals with normoglycemia (r = 0.48; P = 0.03; n = 21) and T2D (r = 0.3; P = 0.04; n = 47) but not in those with prediabetes.