Different cytoprotective effect of antioxidants and change in the iron regulatory system in rodent cells exposed to paraquat or formaldehyde.


To study the mechanism of toxicity of paraquat and formaldehyde, the response of oxidant-exposed cultured NIH3T3 cells to antioxidants or an iron chelator was investigated. Paraquat-induced cell death was reduced by treatment with 10 microM pyrrolidine dithiocarbamate (PDTC) and 10 microM desferrioxamine (DFO), but not with N-acetyl-L-cysteine (NAC). Cells… (More)


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