Reduction of mitochondrial ferritin in Cp KO mice. i, Staining for mitochondrial ferritin in uninjured WT sciatic nerve. ii, In comparison, there is marked reduction in mitochondrial ferritin staining in Cp KO nerves. iii, Quantification of the area in internodal regions occupied by mitochondrial ferritin staining. Note the significant reduction in Cp KO nerves. n = 4 per group. **p = 0.0043. Scale bar, 30 µm.