Scatter plots of Ann/PI-stained HepG2 cells treated-eurycomanone (5 μg/ml) under four situations in quadrant analysis. They are living cells (A3), apoptotic cells (A4), late apoptotic or dead cells (A2) and necrotic or dead cells (A1). Exposed for 24 hours (1); exposed for 48 hours (2); exposed for 72 hours (3)(a). The graph summarized the numbers of cells in each quadrant (b). The values of the bars represented mean ± S.D. of three independent experiments. P < 0.05.
Zakaria et al. Cancer Cell International 2009 9:16 doi:10.1186/1475-2867-9-16