Figure 1.

Effects of vitamin C on cell viability on AGS adenocarcinoma gastric cancer cell line. (A) The cells were exposed to vitamin C at the indicated dosages for 24 h and cell viability was determined. Vehicle-treated cells were arbitrarily set as 100% control viability. (B) Morphology of AGS cells treated with or without vitamin C for 24 h and examined by light microscopy (400). Results are expressed as the mean ± SD of three independent experiments (*P < 0.05; **P < 0.01, compared to control).