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Rapid ROS buffering is not blocked by catalase or glutathione peroxidase inhibitors. (A,B) The mean change in DCF fluorescence for nerves exposed to 100 μm H2O2 in the presence of the catalase inhibitor 3-AT (A, 20 μm) or the glutathione peroxidase inhibitor MS (B, 10 mm). (C) Mean changes in the peak response to 100 μm H2O2, showing a significant increase in the presence of 3-AT. ***P < 0.001 vs. H2O2 alone.
