Figure 2From: Natural resistance to ascorbic acid induced oxidative stress is mainly mediated by catalase activity in human cancer cells and catalase-silencing sensitizes to oxidative stress Relative cytotoxicity of ascorbic acid on cancer and benigne cells. Shown are the EC50 values of different cell lines for an ascorbic acid exposure time of 14 h and an ascorbic acid free culture time of 34 h. Cell viability was measured with the crystal violet assay at the end of culture. The results shown are representative for 3 independent analyses.Back to article page