Fig. 2.

Effect of 10 nM and 1 µM of the VGVAPG peptide (grey bars), 10 nM and 1 µM of the random peptide sequence VVGPGA (black bars) and VGVAPG peptide co-treated with N-acetyl-l-cysteine (NAC) or NG-methyl-l-arginine (l-NMA) or asymmetric dimethylarginine (ADMA) on DCF fluorescence (ROS measurement) (a) or DAF-FM fluorescence (NO measurement) (b) in astrocytes after 6 h. Each point represents the mean ± SD of three independent experiments, each of which consisted of six replicates per treatment group. *P < 0.05; **P < 0.01; ***P < 0.001, versus the control cultures