Figure 5.
Loss of brush-induced dynamic allodynia in ML133 injection mice following SNI. (a) Kir 2.1 channel expressed in the membrane of microglia in dorsal spinal cord lamina I and II. Immunohistochemistry confocal scanning in ipsilateral lumbar spinal cord between Kir2.1 (red) and Iba-1 (green) showed the distribution of Kir2.1 channel in spinal cord dorsal horn. Three confocal images are zoom-in images from area in top red square. White arrows showed the co-localization of Kir2.1 channel and microglia. (b) ML133 prevented the induction of dynamic allodynia following SNI (two-way ANOVA with Bonferroni post hoc, p = 0.0002) and had no effect on the induction of punctate allodynia (two-way ANOVA with Bonferroni post hoc, p = 0.7237). Vehicle, n = 7; ML133, n = 6. Graphs represent the mean response ± SEM. ***p < 0.001.