Figure 7.

Quercetin supplementation upregulated the expression of Nrf2, HO-1, p-p38, and Bcl-2 proteins and downregulated Bax proteins in human L02 cells. QCT-alone treatment was performed at final concentrations of 2.5, 5, and 7.5 μg/mL with or without quercetin at a final concentration of 30 μM for 24 h, and the expression of Bax, Bcl-2, p-p38, Nrf2, and HO-1 proteins was examined using the Western blot method. The representative images were shown (on the left) and the values of each band were quantified using Image J (on the right). All results were presented as mean ± SD (n = 3 independent experiments). * p < 0.05, ** p < 0.01, and *** p < 0.001, compared between the two groups. QCT, quinocetone; Que, quercetin; ns, no significance.