Figure 5From: Attenuation of inflammatory and neuropathic pain behaviors in mice through activation of free fatty acid receptor GPR40 Effects of peripheral inflammation or spinal nerve injury on the GPR40 expression in the dorsal root ganglion (DRG) neurons. Double-staining for GPR40 (red) and NeuN (green) with DAPI (blue) indicated that GPR40 immunoreactivity mainly colocalized with a neuronal marker, NeuN in the DRGs even after the carrageenan, complete Freund’s adjuvant (CFA) or spinal nerve ligation (SNL) treatment. Lumbar DRGs (L4) were dissected 6 hours after carrageenan, 3 days after CFA, and 2–3 weeks after SNL treatment. As each control, saline, incomplete Freund’s adjuvant (IFA) and sham-treatment were employed, respectively. C-17 anti-GPR40 antibody was used. Scale bar = 50 μm.Back to article page