Fig. 5From: Lasmiditan and 5-Hydroxytryptamine in the rat trigeminal system; expression, release and interactions with 5-HT1 receptors5-HT1B/D/F receptors co-staining with the paranodal marker CASPR. Arrows mark nodes of Ranvier in CASPR labelled Aδ-fibres. A Ir for 5-HT1B receptors was observed in neuron cell bodies and faintly in CASPR positive Aδ-fibres. B 5-HT1D receptors were clearly expressed in CASPR positive Aδ-fibres and neuron cell bodies. C A weak ir for 5-HT1F receptors was detected in some neuron cell bodies while no ir was found in Aδ-fibresBack to article page