Fig. 4From: Progesterone distribution in the trigeminal system and its role to modulate sensory neurotransmission: influence of sexDouble immunohistochemistry of progesterone and GI Syn in TG. Arrows indicates progesterone expression in surface of neurons (red) and arrowheads indicates GI Syn expression in satellite glial cells (green). Results showed that there was no co-localization between progesterone and GI SynBack to article page