PROS1 and diabetes mellitus: This correlation was even stronger in diabetes mellitus type 2 patients [n = 35, y (glycated nail proteins) = 0.26 + 1.12 x (glycated eye lens proteins), r2 = 0.71, P<0.001] than in nondiabetics [n = 16, y (glycated nail proteins) = 0.19 + 0.83 x (glycated eye lens proteins), r2 = 0.56, P = 0.001] (Fig. 4).