Meloxicam selectively depresses the afterdischarge of rat spinal dorsal horn neurones in response to noxious stimulation

This study examined the effects of the cyclooxygenase-2 (COX-2) inhibitor, meloxicam, on responses of spinal dorsal horn neurones to synaptic inputs in vivo. Experiments were run using male Sprague-Dawley rats (350-375 g) anesthetized with Na-pentobarbital (50 mg/kg, i.p.) and acutely spinalized at T9. Spinal segments L1-4 were exposed for extracellular single unit recording of on-going and stimulation-evoked activity of eight wide dynamic …