Chemical Constituents from the Roots of Polygala arillata and Their Anti-Inflammatory Activities

Figure 4

The effect of the isolated compounds on the survival rate of RAW 264.7 macrophage cells. The cells were pretreated with concentrations (12.5, 25, and 50 μg/mL) of compounds (1, 2, 4, 5, 7, 8, and 10) or C₂₂H₂₈FNa₂O₈P (5 μg/mL) for 1 h. The data show the mean ± SD of three independent experiments performed in triplicates. Arillatanoside E (1), oleanolic acid (2), trans-ferulic acid (4), trans-feruloyl-glucoside (5), 2,4,6-trimethoxy-1-O-β-D-glycoside (7), 3-methoxy-4-hydroxybenzoic acid (8), and sinapic acid (10).