Figure 13.

Effect of different concentrations of luteolin and secologanic acid on RAW264.7 macrophage viability. (a) RAW264.7 cells were incubated with luteolin (5, 10, 20, 40, and 80 μM) for 24 hours after being treated with 1 μg/mL LPS. (b) RAW264.7 cells were incubated with secologanic acid (5, 10, 20, 40, and 80 μM) for 24 hours after being treated with 1 μg/mL LPS. Data are expressed as the mean ± SD of three independent experiments. ^##P < 0.01 compared with the control group; ^∗P < 0.05 and ^∗∗P < 0.01 compared with the model group.