The spin trap 5,5-dimethyl-1-pyrroline N-oxide inhibits lipopolysaccharide-induced inflammatory response in RAW 264.7 cells.
2012
Aim
Exposure of macrophages to lipopolysaccharide (LPS) induces oxidative and inflammatory stresses, which cause cell damage. Antioxidant and anti-inflammatory properties have been attributed to the nitrone spin trap 5,5-dimethyl-1-pyrroline N-oxide (DMPO), commonly used in free radical analysis, but these aspects of DMPO have been little explored. In this study, we sought to establish the anti-inflammatory activity of DMPO, presumably by removing free radicals which otherwise help activate inflammatory response and damage cells.
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