Abstract

Endocannabinoid system (ECS), which composed of its ligands and receptors, widely distributes in peripheral tissues and nerve system. Through complex regulating mechanisms, ECS exerts a variety of biological functions including analgesia. Its utility in analgesic regulation has attracted extensive attention, and the related achievements have also been transformed into clinical practice. With the deepened understanding of the essence of pain, as well as the advances in research techniques, quantity of research evidences showed that ECS could be regulated by acupuncture treatment and exerted analgesic effect in inflammatory pain, neuropathic pain and other related diseases, and the mechanism had also been revealed gradually. By reviewing literatures related to acupuncture analgesia and ECS, we summarized the effect and mechanism of acupuncture analgesia involved with regulation of ECS, pointed out cannabinoid (CB) 1 receptor and CB2 receptor exerted analgesic effect in central and peripheral neural system through mechanisms of inhibiting neural activation and anti-inflammation, respectively. Therefore, we hope to provide reference and inspiration for relevant research and clinical practice in the future.

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