Fig. 1.
The effect of increasing concentrations (2.5 to 200 μM) of TQ on glioma cell viability. Glioma cells were incubated for 24 h with different concentration of TQ. Luminometric ATP assay was used to measure viability. The results were calculated by taking relative to control. All concentrations were studied at least four times and expressed as mean ± standard deviation. Statistical differences were shown as * p < 0.05, ** p < 0.01, *** p < 0.001 according to the control.