Protective effect of water-soluble IHFM on LO2 cells damaged by H2O2. (A) (①–⑨) cell morphology of cells treated with H2O2 concentrations of 0, 0.05, 0.25, 0.5, 1, 1.5, 2, 4, and 8 mmol/L. (B) ①–⑨) Using a H2O2 concentration of 1.577 mmol/L, water-soluble IHFM treated 0.05, 0.25, 0.5, 1, 1.5, 2, 4 and 8 mg/mL LO2 cell morphology. (C) Effects of different water-soluble IHFM on the viability of LO2 cells. (D) Effect of H2O2 on LO2 cells. (E) Effect of water-soluble IHFM on the cell viability of oxidatively injured LO2 cells. (F) Effect of water-soluble IHFM on the relative quantity of ROS in oxidatively injured LO2 cells. Note: Different lowercase letters indicated significant difference between groups (p < 0.05).