Antioxidant capacity in term of Trolox (mM) equivalent units in mice serum. Bars represent mean ±1.96 (SD) with distribution of samples per group in scatter blot column. Interval of confidence at 95% were as follow: Control: 2.54+/−1.96 (0.40), NAC: 1.74 +/− 1.96 (0.31), PQ: 1.71 +/− 1.96 (0.30), and PQ+NAC: 2.32 +/− 1.96 (0.34). The sample size of the experimental groups was as follow: Control (N=5), NAC (N=6), PQ (N=7), and PQ+NAC (N=7).