Fig. 5. Assay of mitochondrial respiration in WT and VDAC1^-/-C1 H9c2 cells exposed to tBHP. (A) Traces of O₂ consumption rate (OCR) in WT and VDAC1^-/-C1 H9c2 cells with or without exposure to tBHP. (B) Summary of OCR in WT and VDAC1^-/-C1 H9c2 cells with or without exposure to tBHP. (C) Proton leak and (D) coupling efficiency in WT and VDAC1^-/-C1 H9c2 cells with or without exposure to tBHP. NS: not significant.