Antinociception induced by rosuvastatin in murine neuropathic pain
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2018-06Metadata
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Miranda, Hugo F.
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Antinociception induced by rosuvastatin in murine neuropathic pain
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Background: Neuropathic pain, and subsequent hypernociception, can be induced in mice by paclitaxel (PTX) administration and partial sciatic nerve ligation (PSNL). Its pharmacotherapy has been a clinical challenge, due to a lack of effective treatment. In two models of mouse neuropathic pain (PTX and PSNL) the antinociception induced by rosuvastatin and the participation of proinflammatory biomarkers, interleukin (IL)-1 beta, TBARS and glutathione were evaluated.
Methods: A dose-response curve for rosuvastatin ip was obtained on cold plate, hot plate and Von Frey assays. Changes on spinal cord levels of IL-1 beta, glutathione and lipid peroxidation were measured at 7 and 14 days in PTX and PSNL murine models.
Results: PTX or PSNL were able to induce in mice peripheral neuropathy with hypernociception, either to 7 and 14 days. Rosuvastatin induced a dose dependent antinociception in hot plate, cold plate and Von Frey assays. The increased levels of IL-1 beta or TBARS induced by pretreatment with PTX or PSNL were reduced by rosuvastatin. The reduction of spinal cord glutathione, by PTX or PSNL, expressed as the ratio GSH/GSSG, were increased significantly in animals pretreated with rosuvastatin. The anti-inflammatory properties of statins could underlie their beneficial effects on neuropathic pain by reduction of proinflammatory biomarkers and activation of glia.
Conclusion: The findings of this study suggest a potential usefulness of rosuvastatin in the treatment of neuropathic pain.
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Partially supported by project UNAB DI-1349-16/R
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URI: https://repositorio.uchile.cl/handle/2250/152498
DOI: 10.1016/j.pharep.2017.11.012
ISSN: 1734-1140
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Pharmacological Reports 70:3 (2018) 503–508
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