Figure 1. Induction of nitroxidative species after tissue injury.
Nitroxidative species can induce posttranslational modifications of proteins and lipids, which subsequently drive pathological pain by modulating nociceptive neurotransmission, activating TRP channels, inducing mitochondrial dysfunction, and induce inflammatory signaling. In healthy cells, endogenous antioxidant systems prevent nitroxidative damage. Cell damage/pathology can perturb this balance, driving accumulation of potentially damaging nitroxidative species. O2: oxygen; NO: nitric oxide; O2•−: superoxide; ONOO−: peroxynitrite; H2O2: hydrogen peroxide; •OH: hydroxyl radical; H2O: water; NOX: NADPH oxidase; NOS: nitric oxide synathse; mETC: mitochondrial electron transport chain; SOD: superoxide dismutase; CAT: catalase; GPx: glutathione; HO: heme oxygenase.