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Fig. 4 | Molecular Pain

Fig. 4

From: p38 phosphorylation in medullary microglia mediates ectopic orofacial inflammatory pain in rats

Fig. 4

Mechanical sensitivity in facial skin and microglial activation in CFA-injected rats with i.c.m. SB203580 administration. a Relative amount of pp38 protein in Vc on day 4 in saline or CFA-injected rats with i.c.m. vehicle or SB203580 administration. p38 protein was used as loading control. Data represent mean ± SEM. n = 16–17 in each. *p < 0.05, **p < 0.01; by one-way ANOVA followed by Tukey’s multiple-comparison tests. b HWT measured in facial skin on day 4 after CFA or saline injection with i.c.m. vehicle or SB203580 administration. n = 9–10 in each. **p < 0.01; by one-way ANOVA followed by a Kruskal–Wallis tests. Photomicrograph of Iba1-IR cells on day 4 after CFA injection into the trapezius muscle with i.c.m. vehicle (c) or SB203580 (d) administration. e Photomicrograph of Iba1-IR cells on day 4 after saline injection into the trapezius muscle with i.c.m. vehicle administration. Scale bar 100 μm. f Density of Iba1 immuno-products in Vc on day 4 in CFA- or saline-injected rats with i.c.m. vehicle or SB203580 administration. Data represent mean ± SEM. n = 9–10 in each. *p < 0.05, **p < 0.01, ***p < 0.001, ****p < 0.0001; by one-way ANOVA followed by Tukey’s multiple-comparison tests.

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