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- W2026460616 abstract "In U937 and mouse myeloma cells, protein hydroperoxides are the predominant hydroperoxide formed during exposure to AAPH or gamma irradiation. In lipid-rich human monocyte-derived macrophages (HMDMs), we have found the opposite situation. Hydroperoxide measurements by the FOX assay showed the majority of hydroperoxides formed during AAPH incubation were lipid hydroperoxides. Lipid hydroperoxide formation began after a four hour lag period and was closely correlated with loss of cell viability. The macrophage pterin 7,8-dihydroneopterin has previously been shown to be a potent scavenger of peroxyl radicals, preventing oxidative damage in U937 cells, protein and lipoprotein. However, when given to HMDM cells, 7,8-dihydroneopterin failed to inhibit the AAPH-mediated cellular damage. The lack of interaction between 7,8-dihydroneopterin and AAPH peroxyl radicals suggests that they localize to separate cellular sites in HMDM cells. Our data shows that lipid peroxidation is the predominant reaction occurring in HMDMs, possibly due to the high lipid content of the cells." @default.
- W2026460616 created "2016-06-24" @default.
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- W2026460616 date "2007-01-01" @default.
- W2026460616 modified "2023-09-23" @default.
- W2026460616 title "Lipid oxidation predominates over protein hydroperoxide formation in human monocyte-derived macrophages exposed to aqueous peroxyl radicals" @default.
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- W2026460616 doi "https://doi.org/10.1080/10715760701416442" @default.
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