(D) Quantitative analysis of poly-GA aggregates in the spinal cord using immunohistochemistry. Images from complete spinal cord sections at 1 mm intervals. One-way ANOVA, Tukey's post hoc test, F(5,12)=1.625, p=0.2270. *** p<0.001, ns not significant. TG-Ova-(GA)10 vs. TG-PBS p<0.0001; TG-(GA)15 vs. TG-PBS p=0.2460. Scale bar indicates 100 μm. 