Increased BDNF expression in the DRG after hind-paw incision. Representative photomicrographs showing immunostaining of BDNF (red) in the ipsilateral DRG after hind-paw incision (Figure 3B-D) or the control (Figure 3A). The nuclei were stained by Hoechest (blue). Increased BDNF expressing neurons were observed at 1 hour after incision (Figure 3B) and sustained 1 day after incision (Figure 3C). The expression of BDNF at 3 days after incision (Figure 3D) went back to the basal level. Bar = 40 μm.
Li et al. Molecular Pain 2008 4:27 doi:10.1186/1744-8069-4-27