Figure 5: Inhibitory effects of cinnamophilin on superoxide radical production in the PMA-treated neutrophils. The cells were cotreated with CINN (1 to 100 μM) and stimulated with PMA for 15 minutes followed by staining with DHE. The superoxide radical production of cells was determined by flow cytometric assay. Data are expressed by the mean ± standard deviation (S. D.), and n=6 per group. *P<0.05 compared with controls by using the Kruskal-Wallis/Mann- Whitney U tests.