Fig. 3
From: Trigeminal activation patterns evoked by chemical stimulation of the dura mater in rats
Diagrams illustrate mean number of c-Fos IR neurons in the dorsal horns 2 h after CFA treatment. The number of the cells is displayed according to somatotopic representation of V/1, V/2, V/3 in 2CFA a and 2PHYS b groups. Diagrams show the mean number of c-Fos IR cells in LCFA c and LPHYS d groups. Representative photomicrographs from 2CFA e, 2PHYS f, LCFA g, LPHYS h group showing the right dorsal horns. Scale bar: 200 μm. Lidocaine decreased the number of c-Fos positive cells compared to 2CFA and 2PHYS group especially in the V/1 area of the dorsal horns (mean + SEM)