Figure 5. Effect of simvastatin on mitochondrial toxicity. Permeability transition pore opening (A) and mtDNA copy number (B) in human dermal fibroblasts in presence of different concentrations of simvastatin for 72 h. Data (n=12 A; n=6 B) are reported as box-plot with 50% of the population reported in the box; horizontal lines indicate min, median, and max values. Significance difference vs 0 nM + p<0.05, ++ p<0.01, +++ p<0.001, ++++ p<0.0001.