Melatonin and Doxorubicin synergistically induce cell apoptosis in human hepatoma cell lines

Figure 4 Effect of Melatonin and/or Doxorubicin on the expression of Bcl-2 (A) and Bax (B) in HepG2 cells, the quantitative analysis (C) of Bcl-2 and Bax. Quantitative analysis of Bcl-2 and Bax, expression by Biological Image Analysis System. Data are presented as mean ± SD (error bar). a: Untreated cells; b: 10^-5 mol/L Mel; c: 1.25 mg/L Dox; d: 10^-5 mol/L Mel plus 1.25 mg/L Dox. S-P (× 400). ^fP < 0.01 vs control of Bcl-2, ^hP < 0.01 vs control of Bax.