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. 2020 May 23;17:162. doi: 10.1186/s12974-020-01834-0

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© The Author(s) 2020

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

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Fig. 9 — Pharmacological blocking NLRP3 inflammasome activation attenuated the mechanical allodynia of CPIP rats. a Schematic protocol illustrating the time points for model establishment, behavioral tests, and MCC950 (30 μg/rat in 12.5 μl injection volume, via intrathecal catheter)/vehicle (0.1% DMSO in PBS) application. b NLRP3 expression in ipsilateral SCDH of Sham+Veh, CPIP+MCC950, and CPIP+Veh groups measure by Western blot. Upper panel indicates representative images of NLRP3 and β-actin protein expression. Lower panel indicates summarized NLRP3 expression normalized to β-actin. c IL-1β expression in ipsilateral SCDH of Sham+Veh, CPIP+MCC950, and CPIP+Veh groups measure by Western blot. Upper panel indicates representative images of IL-1β and β-actin protein expression. Lower panel indicates summarized IL-1β expression normalized to β-actin. n = 4 rats/group. d Time course effect of MCC950 on 50% paw withdraw threshold (PWT) of ipsilateral hind paw of CPIP rats. e Summary of the normalized area under the curve (AUC) as in d. n = 6 rats/group. **p < 0.01 vs. Sham+Veh group. ^##p < 0.01 vs. CPIP+Veh group. Two-way ANOVA followed by Tukey’s post hoc test was used for comparison in panel d. One-way ANOVA followed by Tukey’s post hoc test was used for comparison in panel e