The Protective Effects of Isoliquiritigenin and Glycyrrhetinic Acid against Triptolide-Induced Oxidative Stress in HepG2 Cells Involve Nrf2 Activation

Figure 4

Cells were treated with different concentrations of ISL (a) and GA (b) for 12 h and 24 h, respectively, after which they were exposed to 50 nM TP for 24 h. The protein expression and gray value of Nrf2 was measured (). versus control; versus TP group, versus TP group. Control (Column 1): 0.1% DMSO.

(a)

(b)