Salicylic acid-induced lipid peroxidation in rat liver microsomes
- PMID: 9730006
Salicylic acid-induced lipid peroxidation in rat liver microsomes
Abstract
Rat liver microsomes (1 mg protein/ml) were incubated at 37 degrees C with non-steroidal anti-inflammatory drug, salicylic acid (5 mM) in the presence of 0.2 mM NADPH. The amounts of thiobarbituric acid reactive-substances (TBARS) were increased remarkably by the incubation for 30 min. TBARS formation was dependent on salicylic acid concentration. Salicylic acid-induced lipid peroxidation was not observed in the absence of NADPH. It was also inhibited by the presence of cytochrome P450 inhibitor, SKF-525A. The singlet oxygen's scavengers such as histidine suppressed salicylic acid-induced lipid peroxidation. These results suggested that salicylic acid-induced lipid peroxidation was coupled with the metabolism through cytochrome P450 in rat liver microsomes. The singlet oxygen may be involved in the reaction.
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