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Muscovite nanoparticles mitigate neuropathic pain by modulating the inflammatory response and neuroglial activation in the spinal cord

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Neural Regeneration Research 2020年第11期15卷 2162-2168页

作者： Ju-Young Oh Tae-Yeon Hwang Jae-Hwan Jang Ji-Yeun Park Yeonhee Ryu HyeJung Lee Hi-Joon Park Acupuncture and Meridian Science Research Center Kyung Hee University26 Kyungheedae-roDongdaemun-guSeoulRepublic of Korea Department of Korean Medical Science Graduate School of Korean MedicineKyung Hee UniversitySeoulRepublic of Korea BK21 PLUS Korean Medicine Science Center College of Korean MedicineKyung Hee UniversitySeoulRepublic of Korea College of Korean Medicine Daejeon UniversityDaejeonRepublic of Korea Korean Institute of Oriental Medicine DaejeonRepublic of Korea

Despite numerous efforts to overcome neuropathic pain,various pharmacological drugs often fail to meet the needs and have many side *** is an aluminosilicate mineral that has been reported to have an anti-inflammatory effect,but the efficacy of muscovite for neuropathic pain has not been ***,we assessed whether muscovite nanoparticles can reduce the symptoms of pain by controlling the inflammatory process observed in neuropathic *** analgesic effects of muscovite nanoparticles were explored using partial sciatic nerve ligation model of neuropathic pain,in which one-third to onehalf of the nerve trifurcation of the sciatic nerve was tightly tied to the dorsal *** nanoparticles(4 mg/100μL)was given intramuscularly to evaluate its effects on neuropathic pain(3 days per week for 4 weeks).The results showed that the muscovite nanoparticle injections significantly alleviated partial sciatic nerve ligation-induced mechanical and cold *** the spinal cord,the muscovite nanoparticle injections exhibited inhibitory effects on astrocyte and microglia activation and reduced the expression of pro-inflammatory cytokines,such as interleukin-1β,tumor necrosis factor-α,interleiukin-6 and monocyte chemoattractant protein-1,which were upregulated in the partial sciatic nerve ligation ***,the muscovite nanoparticle injections resulted in a decrease in activating transcription factor 3,a neuronal injury marker,in the sciatic *** results suggest that the analgesic effects of muscovite nanoparticle on partial sciatic nerve ligation-induced neuropathic pain may result from inhibiting activation of astrocytes and microglia as well as pro-inflammatory *** propose that muscovite nanoparticle is a potential anti-nociceptive candidate for neuropathic *** experimental protocols in this study were approved by the Institutional Animal Ethics Committee(IACUC)at Dongguk University,South Korea(approval No.2017-022-1)

关键词： astrocyte microglia muscovite nanoparticle neuropathic pain partial sciatic nerve ligation pharmacopuncture pro-inflammatory cytokine spinal cord

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