Fig. 4

Au attenuates oxidative stress in TBI mice. a–d The ELISA analysis of MDA (a), SOD (b), GSH (c), and GSH-Px (d) in serum (upper) and brain tissue (lower) among four groups. e–g WB bands (e) and quantification of relative protein expression (f, g) for GPx1 and SOD1. i, j Representative immunohistochemical images and quantitative analysis of oxidative stress markers 8-OHdG. Bars represent the mean ± SD. *P < 0.05 versus indicated groups. Scale bars = 50 μm (n = 6 for each group)