ArticlebioRxiv : the preprint server for biology2025
Protectin DX resolves fracture-induced postoperative pain in mice via neuronal signaling and GPR37-activated macrophage efferocytosis.
Article in bioRxiv : the preprint server for biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Protectin DX (PDX) is a member of the superfamily of specialized pro-resolving mediators (SPMs) and exerts anti-inflammatory actions in animal models; but the specific signaling pathways involved in its actions have not been fully elucidated. Here we demonstrate the analgesic actions of PDX in a mouse model of tibial fracture-induced postoperative pain (fPOP) via activation of GPR37. Intravenous early-phase and late-phase treatment of PDX (100 ng/mouse) effectively alleviated fPOP. Compared to protectin D1/neuroprotectin D1, DHA, steroid, and meloxicam, PDX produced superior pain relief. While dexamethasone and meloxicam prolonged fPOP, PDX shortened the pain duration. The analgesic effects of PDX were abrogated in
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