Fig. 3. TRESK immunoreactivity was similar in the both DRG of sham group (A and B). 14 days after spinal nerve ligation (SNL), TRESK expression was dramatically reduced in the ipsilateral DRG (D) vs. the contralateral side (C). Scale bar=20 µm. TRESK, TWIK-related spinal cord K⁺; DRG, dorsal root ganglion.