Fig. 1.

The cytotoxic effects of EGCG and EC on HepG2 cells and primary hepatocytes. Cells were treated with EGCG and EC at indicated dose and times. Cells incubated with 0.1% DMSO without EGCG or EC were identified as the control. Cell viability was assessed by MTT assay. a, b Cell viability of HepG2 cells and c HepG2 cells and primary hepatocytes were treated with EGCG or EC at IC50 concentration for 72 h. Data from at least three independent triplicated experiments are presented as mean ± SD, n = 9, *p < 0.05, denoting significant differences compared with the control