Recently, serum concentrations of diabetes type II—related MRPs were quantitated by a tandem mass spectrometric technique in non-diabetic subjects and found to be 17.5 ± 8.2 ng/ml for MG-H1, 9.8 ± 2.2 ng/ml for CEL and 15.1 ± 4.2 ng/ml for CML [59], which is consistent with former data from Thornalley and colleagues in 2003 [11] with plasma concentrations of CML (4.7 ± 1.6 ng/ml), CEL (7.6 ± 3.1 ng/ml) and MG-H1 (25.1 ± 10.5 ng/ml). The gene discussed is CEL; the disease is type 2 diabetes mellitus.