Chemokine CCL7 regulates spinal phosphorylation of GluA1-containing AMPA receptor via interleukin-18 in remifentanil-induced hyperalgesia in rats

摘要

Background: Remifentanil-induced hyperalgesia (RIH) may be a potential component for acute confusional state and chronic pain after surgery, but specific mechanism remains elusive. Chemokines and inflammatory mediators associated neuroinflammation is involved in central nociceptive sensitization. The contribution of AMPA receptor to excitatory synaptic transmission in pathologic pain has been indicated. This study investigated whether chemokine CCL7 modulated spinal phosphorylation of AMPA receptor via interleukin (IL)-18 in a rat model of RIH.