Abstract
The addition of EDTA to the incubation mixture containing rabbit liver microsomes and ferrous ion resulted in 2-fold increase of lipid peroxidation activity. Such an enhancement was not observed in rat liver microsomes. The maximum lipid peroxidation activity seen in rabbit microsomes in the presence of EDTA and ferrous ion was about 80% that seen in rat liver microsomes. From these results, it is likely that low lipid peroxidation activity in rabbit liver microsomes may account for the insufficiency of an EDTA-like factor(s) in rabbit liver microsomes.