Fig. 6. Effects of milk powder oxidation diet on the levels of oxidative stress status. (A) Whole blood level of ROS, (B) liver level of ROS, (C) plasma levels of T-AOC, (D) liver levels of T-AOC, (E) plasma levels of SOD, (F) liver levels of SOD, (G) plasma, hippocampus and liver level of GSH/GSSG. ROS, reactive oxygen species; T-AOC, total antioxidant capacity; SOD, superoxide dismutase; GSH, glutathione; GSSG, oxidized glutathione; SWM, 180 °C spray-dried whole milk group, FWM, freeze-dried whole milk group, FWM + LDT freeze-dried whole milk + low dityrosine group, FWM + HDT, freeze-dried whole milk + high dityrosine group. Data are expressed as the mean ± SEM (n = 10 rats per group). Means among bars without a common letter differ, P < 0.05.