Figure 2.
Effect of CTX on the survival of rat C6 glioma cells. The cells were incubated in the presence of various CTX concentrations (3 pM–3 μM) for 72 h. Cytotoxin I (Cyt I) from Naja oxiana venom was used for a positive control. The cell viability was determined by MTT test. Data are shown as % of control (untreated cells). The results are presented as the mean ± SEM in three (for concentrations of 3 nM and 300 pM—four) independent experiments with 12 replicates in each. * p < 0.05, Student’s two-sample t-test compared to control.