Figure 7.

Effect of quercetin on the expression of sirtuin1/Nrf2/HO-1 protein in cells. Cells were grouped as described above. The protein level was detected with Western blot. Relative levels of (a) Sirtuin1 protein, (b) total Nrf2 protein, and (c) HO-1 protein. (d) Representative Western blot images of Sirtuin1, total Nrf2, and HO-1 proteins. (e) Representative Western blot images of nuclear Nrf2. (f) Relative level of nuclear Nrf2. Note: ^∗P < 0.05, compared with the control; ^#P < 0.05 and ^##P < 0.01, comparison of different concentrations of the quercetin group and the model group.