Fig. 4From: High cytotoxicity of betulin towards fish and murine fibroblasts: Is betulin safe for nonneoplastic cells?Cytotoxicity of betulin after (A) 24, (B) 48 and (C) 72 h of cells exposure (NRU assay)Cell viability expressed as the percentage of control (untreated) cell viability. Betulin concentrations in µg/mL. All data expressed as means ± SD (standard deviation) for n = 3 independent experiments. Asterisks refer to statistically significant differences between control and treatments analyzed by one-way ANOVA followed by Dunnett’s posttest; * p<0.05, ** p<0.01, *** p<0.001. NT – betulin concentration not tested (for NIH/3T3 cells)Back to article page