Table 6.

Relative redox activity with ferricyanide, indophenol and oxygen nanomoles/min/mg protein NADH acceptor reductase

Membrane acceptor	Ferricyanide	Indophenol	Oxygen
Rat liver	314	50	20
Rat adipocyte	1450	750	20
Human erythrocyte	457±32 (5)	17±8	0

Note: The erythrocyte membrane has a higher ratio (ferricyanide/indophenol =27), compared to other membrane ratios of 2 and 6, the high ratio indicating less oxidase and more VDAC.²²,⁵⁰

Abbreviations: NADH, nicotinamide adenine dinucleotide reduced; VDAC, voltage dependent anion channel.