A Relative DCF fluorescence in saline controls, controls exposed to 100 µM H2O2and cells incubated in HNG (10 nM) with 100 µM H2O2 (* compared with H2O2-treated control, p = 0.003, ** p =0.001; 8 N per experiment, 7 experiments). B The ratio of red/green fluorescence (ψm ) from JC-10 loaded cells that had been pretreated with 40 µM H2O2 with or without HNG (10 nM) (compared with control treated cells, no H2O2*p = 0.0142, *** p = 5.0×10−615 N per experiment, 3 experiments). C Intracellular ATP levels after 30 and 120 minutes of HNG exposure (compared with matched control, ** p = 0.0024, *** p = 0.0001, 3 N per experiment, 4 experiments).