highly significantp < 0.0001
When the tested populations were compared at the highest dose of idebenone (0.5 μM), the differences between NSC [130% (±4.40)] versus NP [103.81% (±2.45)] and eNP [138.19% (±10.78)] versus NP [103.81% (±2.35)], were highly significant (####; p < 0.0001).