Figure 2. Striatal gene expression changes under SNCA overload largely occur in young TG rats. (A) Number of differentially expressed genes (DEGs) between experimental groups in the striatum, along the genotype (WT and TG) and age axes (5 and 12 months) and their interaction with the indicated significance cut-offs. (B) Heatmap of hierarchically clustered striatal expression changes relative to WT5m of 2776 DEGs (union of striatal DEGs shown in