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Fig. 6 | The Journal of Headache and Pain

Fig. 6

From: Trigeminal activation patterns evoked by chemical stimulation of the dura mater in rats

Fig. 6

Diagrams illustrate number of c-Fos positive cells in 4IS, 4SIF groups a-d. Photomicrographs showing c-Fos expression in the dorsal horns of 4IS e, f and 4SIF groups g, h. Green highlighting shows the V/1 area in the dorsal horn. Scale bar: 200 μm. IS significantly increases the number of c-Fos IR neurons both in the whole dorsal horn a and the V/1 area b. IS increased the number of c-Fos positive cells compared to SIF in the whole dorsal horn c and in the ophthalmic nerve area d (mean + SEM; *p < 0.05, #p < 0.01, $p < 0.001)

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