Figure 2. Changes in the serum and blood biochemical parameters in different groups of rats at the different times of the experiment. A: Glucose concentration, B: Percent of HbA1c, C: Fluorescence intensity of AGEs, and D: FRAP. N: normal rats; D: diabetic rats; DG: diabetic rats with Gly; and NG: normal rats with Gly. “a” indicates the significance of the data that compares group N versus all groups. “b” indicates the significance of the data that compares group D versus groups of glycine-treated rats. *, p<0.05; #, p<0.01; and †, p<0.001.