Biomarkers for microglia activation in neuropathic pain

Neuropathic pain (NP) is a result of direct disturbances of somatosensory pathways. Its pathophysiology includes various mechanisms. Recent studies have reported an important role of microglia in the NP mechanism. There are several chemical molecules which are involved in microglia activation. The activated microglia will, in turn, enhance some receptors expression that can be used as markers of its activation. Though we still need future studies about precise microglia role in NP mechanism, the chemical mediators that initiate microglia activation and the alteration of some receptors in the activated microglia which have been found from previous studies can be the interesting future research materials and the promising target for a new therapy for NP.