Fig. 8.

Rapid ROS buffering is present at various points in white matter development. (A) Exposure to 100 μm H₂O₂ had no effect upon P3 optic nerve ROS levels. (B) Exposure to 1 mm H₂O₂ evoked an elevation in mean DCF fluorescence that was not maintained in the continued presence of the challenge. (C) 100 μm H₂O₂ had no effect on P20 optic nerve ROS levels. (D) 1 mm H₂O₂ had no effect on P20 optic nerve ROS levels. (E) 10 mm H₂O₂ evoked an elevation in mean DCF fluorescence that was not maintained in the continued presence of the challenge.