Effect of NC on cell apoptosis in hepatic cancer xenograft mice and HepG2 cells. (A) TUNEL assay in tumor tissues (400 ×). Data shown are averages with S.D. (error bars) from 6 individual mouse in each group. *P < 0.01, versus controls. (B) Apoptosis of HepG2 cells were quantification of FACS analysis. (C) Quantitative analysis of the JC-1 red/green fluorescent intensity ratio. The data from C and E shown are averages with S.D. (error bars) from three independent experiments. *P < 0.05, versus controls.