Figure 2.

Effect of KYNA on cell viability of gastric cancer cells. The inhibition of cell viability was measured by a 3-(4,5-dimethylthiazol-2-yl)-2,5 diphenyltetrazolium bromide (MTT) assay with various concentrations (0, 50, 100, 150, 200, 250 and 300 μM) of KYNA for 24 h. Cell viability is represented in percentage relative absorbance compared to the controls. The results obtained from three independent experiments were expressed as mean ± standard error of the mean (SEM) compared with the control group. * p < 0.05, *** p < 0.001.