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. 2022 Jan 13;5:222–227. doi: 10.1016/j.crfs.2022.01.006

Fig. 1.

Fig. 1

Protocatechuic acid (PCA) restored hydrogen peroxide (H2O2)-induced suppression of cell viability. A protective effect of PCA against oxidative stress was observed in HepG2 cells co-treated with H2O2 (600, 800, and 1000 μM) and PCA (0, 25, and 50 μM). Different letters indicate significant difference at p < 0.05.