Figure 1

Effect of curcumin on THP-1 cell apoptosis. (A) THP-1 cells treated with vehicle (-) and curcumin (CUR, 30, 40 and 50 μM) for 24 hours underwent propidium iodide (PI) staining and flow cytometry. The percentage of the cells in different cell cycle phases was decided and replotted into histogram. Data from three independent experiments are presented as mean ± SD. P (*) < 0.05. (B) THP-1 cells treated with vehicle (-) and 50 μM curcumin (CUR) for 3, 12 and 24 hours were subjected to the same procedure as (A). Data from three independent experiments are presented as mean ± SD. P (*) < 0.05.