Fig. 6
Colocalization of EP2 and EP4 receptors with neural marker HU and a glial marker GFAP in the smooth muscle layer of the rat middle colon. a Immunoreactivities for EP2 receptor (a, red) and HU (a’, green) in cryostat sections (10 µm thick) of rat middle colon. b and c Immunoreactivity for EP2 receptor (b and c, red) and GFAP (b’ and c’, green) in a myenteric ganglion (b) and at an interstitial site in the CM (c). d Immunoreactivity for EP4 receptor (d, red) and HU (d’, green). e. Immunoreactivity for EP4 receptor (e, red) and GFAP (e’, green) in a myenteric ganglion. Bar = 10 µm