Fig. 5From: Characterization and anti-tumor activity of a polysaccharide isolated from Dendrobium officinale grown in the Huoshan CountyDOPA-1 decreases HepG-2 cell viability. a Cell viability was assessed by MTT assay. b LDH release assay. The cells were treated with different concentrations of DOPA-1 for 24 h. Data are presented as the mean ± SD of three independent experiments. *p < 0.05, **p < 0.01, ##p < 0.01, compared to the controlBack to article page