Representative high magnification images of GFAP immunoreactivity in the white matter tracts (corpus callosum, cingulum, alveus, and fimbria of the fornix) of WT sham, WT rmCHI, Sarm1−/− sham, and Sarm1−/− rmCHI animals six months after injury or sham surgery. Summary data of the integrated fluorescent intensity of GFAP immunoreactivity in the white matter tracts. Data (mean ± SEM) are shown as the percent change relative to the wild-type sham group. *p < 0.05 in two-way ANOVA with Bonferroni’s multiple comparisons. CA1: Cornu Ammonis 1; CC: corpus callosum; Ctx: cortex; HC: hippocampal commissure.