Attenuation of injury-induced dorsal root demyelination in atx+/- mice. Toluidine blue analysis was performed at day 7 post-injury in WT or atx+/- mice. (a) Photographs show representative data in the dorsal root. Scale bar, 10 μm. (b) Quantification of demyelinated fibers. Results are calculated as a percentage of total fibers, and expressed as the mean ± SEM from 3-5 independent experiments. *p < 0.05, vs. WT and sham-operated mice and #p < 0.05, vs. WT and nerve-injured mice.