At baseline, comparison of the CG and the T2DM patients reflected significantly higher plasma levels of MDA/TBARS [2.9 (0.1) μM vs. 2.1 (0.2) μM (p = 0.001)] and significantly lower plasma levels of TAC [2.3 (0.1) mM vs. 3.1 (0.3) mM (p = 0.001)], GSH [2 (0.2) μM vs. 2.8 (0.2) μM (p = 0.002)] and vit C [40 (19) μM/mL vs. 56 (20) μM/mL (p = 0.001)]. The gene discussed is VIT; the disease is type 2 diabetes mellitus.