Fig. 6From: Characterization and anti-tumor activity of a polysaccharide isolated from Dendrobium officinale grown in the Huoshan CountyDOPA-1 treatment increases intracellular ROS production in HepG-2 cells. 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