Fig. 5
GABA regulates GSK-3β and prevents the H2O2-induced redistribution of NRF2 towards the nucleus. GSK-3β and p-GSK/3β (ser9) protein a and cytosolic and nuclear NRF2 protein b were evaluated by western blot. The relative amount of NRF2 was calculated as the ratio between nuclear and cytosolic levels (ratio N/C). Data are shown as the mean ± SD of three independent experiments (n = 4). Means with different lower-case letters are significantly different (P < 0.05)