C, D) Coronal sections from wt and Sfrp1-/- mouse brains three days after infusion of saline or LPS, immunostained for GFAP (cyan, C) or CD45 (magenta, D). The images are high power views of the somatosensory cortex (lower power view in Fig EV1D). Scale bar 60μm. E, F) The graphs show the normalised levels of immunoreactivity (IR) for GFAP (E) and CD45 (F, P=0,006) present in cortical sections (n=24 acquisitions white dots; from N=3 animals, black dots, per group) from wt and Sfrp1-/- animals infused with saline or LPS. Bars represent Standard Error. Statistical significance calculated per biological replicas is indicated in green and that based on number of acquisitions in black. ** or ## P<0.01; *** or ### P<0.001; **** or #### P<0.0001 by two-way ANOVA followed by Bonferroni's multiple comparisons test. * and # indicate significance between genotypes and treatments, respectively. 