a. Western blot data indicated that L5/6 spinal nerve ligation injury caused down-regulation of TSP4 proteins in L5/6 DRG of the injury side at all the time points examined. Representative Western blot bands are shown on top of each bar group in the same order as the summarized bar graph data, which are the means ± SEM from at least nine rats in each group. **p < 0.01, ***p < 0.001 compared with contralateral side by Students’ t test. b. In contrast, L5/6 spinal nerve ligation injury did not change TSP4 protein levels in uninjured, adjacent L4 DRG from the injury side. Data presented are the means ± SEM from nine rats in each group. C - contralateral, Ip - ipsilateral to SNL.