Figure 4
From: Involvement of peripheral ionotropic glutamate receptors in orofacial thermal hyperalgesia in rats
The rostro-caudal distribution of pERK-IR cells in Vc and C1-C2 following heat stimulation of the tongue (A, B and C) or whisker pad skin (D, E and F) in the rats with Glu (0.1 M or 0.5 M) or Veh injection into the tongue or whisker pad skin. G and H: Mean number of pERK-IR cells in Vc and C1-C2 following heat stimulation of the tongue (G) or whisker pad skin (H) in the Glu- or Veh-injected rats. Ipsi indicates ipsilateral side to Glu or Veh injection. Contra indicates contralateral side to Glu or Veh injection in this and following figures. *: p < 0.05, **: p < 0.01.