Figure 2. The effect of 17-O-acetylacuminolide (AA) on cell viability in RAW264.7 cells.

Cells were pretreated with the indicated doses of AA for 4 hours or were left untreated (DMEM). Data is the average of three independent experiments (±SD), and was analyzed using one way ANOVA with Tukey's post test (** p<0.01, *** p<0.001).