4βHWE accumulated G
/M phase in H129 cells. (A) The cell cycle distribution for 4βHWE (1 μg/mL for 12 and 24 h) treated H1299 cells and untreated controls. (B) The percentages of the cell cycle phase. The data was mean ± SD, n = 3. Different letter notations indicated the statistical significance between drug treatment and vehicle (P < 0.002).