Figure 4: Cytotoxic effect of cinnamophilin on the viability of neutrophil. The cells were treated with PMA (20 ng/ml) or CINN (1 to 300 μM) for 24 hours and the viability of neutrophils were determined by propidium iodine stained. Data are expressed by the mean ± standard deviation (S. D.), and n=3 per group. ***P<0.001 compared with vehicle-treated controls by using one-way analysis of variance (one-way ANOVA) with LSD protected least significant difference post hoc comparison.