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Interaction between dual NADPH-dependent reactions of paraquat in mouse brain microsomes
Research Communications in Chemical Pathology and Pharmacology
|July 1, 1991
Abstract:
Paraquat stimulated NADPH-dependent lipid peroxidation in mouse brain microsomes, while it suppressed lipid peroxidation induced by NADPH plus ascorbate. The stimulation of lipid peroxidation by paraquat was inhibited by N-ethylmaleimide (NEM). However, NEM attenuated the inhibitory effect of paraquat on lipid peroxidation elicited by NADPH in combination with ascorbate. These results suggest that an NADPH-dependent reaction which is susceptible to NEM might share an electron from NADPH with the alternative reaction, lipid peroxidation, in the presence of paraquat in mouse brain microsomes.