Fig. 3From: Modulation of inflammatory mediators in the trigeminal ganglion by botulinum neurotoxin type A: an organ culture studyiNOS immunohistochemistry. In fresh animals, the iNOS immunoreactivity was exclusively found in the SGCs (arrow). In the saline group, some neurons and neuronal nuclei in addition to the SGCs (arrows) displayed immunoreactivity. In the groups incubated with U0126 or BoNT-A the immunoreactivity had returned to levels found in fresh TGBack to article page