Figure 4

Cell cycle distributions of HepG2 cells treated with TGA at different times and dosages. Cells were stained with PI and analyzed by flow cytometry. 1–3, HepG2 control for 12, 24 and 48 h respectively; 4–6, HepG2 cells treated with TGA at 50 μg/ml for 12, 24 and 48 h respectively. 7–8, HepG2 cells treated with TGA at 25 and 100 μg/ml for 48 h. Figures shown are one of three representative experiments.