Fig. 5

Nrf2 activation following exposure of AREc32 luciferase reporter cells to extracts of O. subscorpioidea (A) and U. chamae (B). Each bar represents Mean ± SEM (n = 3); C1 denotes negative (unstimulated) control, while C2 denotes positive control, which is the antioxidant Nrf2 activator tert-butylhydroquinone (tBHQ) at 25 μM; *p < 0.05, ^αp < 0.01, ^γp < 0.0001 versus negative control (C1) using one-way ANOVA followed by Dunnett’s post hoc multiple-comparisons test