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Role of DQ in inducing oxidative and nitrosative stress. DQ, diquat; ROS, reactive oxygen species; RNS, reactive nitrogen species; CRP, cytochrome P450 reductase; SOD, superoxide dismutase; NADPH, nicotinamide adenine dinucleotide phosphate; HMP, hexose monophosphate pathway; CAT, catalase; GPX, glutathione peroxidase; GSH, glutathione; GSSG, glutathione (oxidized); Gred, glutathione reductase; FR, Fenton reaction; HWR, Haber–Weiss reaction
