INS and type 2 diabetes mellitus: HDL-C, IRT (0, 0.5, 1, 2, 3h), HOMA-IR, HOMA-β, ΔC30/ΔG30 and AUC insulin were significantly lower than those in T2DM group (P< 0.05), and there were no statistically significant differences between the two groups in BMI, TG, TC, LDL-C and LP (a) (P> 0.05) (Table 1).