Table 2.

Experimentally determined proportions of the utilized O₂ that convert into H₂O₂ during all active, resting, and inhibited states of heart and brain mitochondria in both genders

State	H202, % consumed oxygen mean ± SEM
	Female		Male
	Brain	Heart	Brain	Heart
Leak‐I	1.63 ± 0.15	1.02 ± 0.13	2.70 ± 0.26	2.59 ± 0.36
Leak‐ll+R	1.36 ± 0.12	0.53 ± 0.05	1.86 ± 0.23	0.86 ± 0.12
OXPHOS‐I	0.12 ± 0.01	0.11 ± 0.01	0.25 ± 0.02	0.24 ± 0.03
OXPHOS‐II	0.28 ± 0.01	0.18 ± 0.02	0.48 ± 0.03	0.25 ± 0.03
AmA+R	7.89 ± 0.55	5.53 ± 0.70	6.05 ± 0.51	6.5 ± 0.60
ETS‐Capacity	0.08 ± 0.16	0.047 ± 0.006	0.16 ± 0.01	0.12 ± 0.02

ETS, Electron Transfer system.