VR1, but not P2X3, increases in the spared L4 DRG in rats with L5 spinal nerve ligation

Abstract
We investigated the expression of two candidate transducers of noxious stimuli in peripheral tissues, the vanilloid receptor subtype 1 (VR1) and the P2X3, a subunit of the ionotropic P2X receptor for ATP, in spared L4 DRG neurons following L5 spinal nerve ligation, a neuropathic pain model.