Figure 4. Overall expression patterns of circRNAs in different regions of the brain. (A) Expression patterns of circRNAs in the hippocampus. (B) Expression patterns of circRNAs in the cerebellum. The colored profile represents significant enrichment (p < 0.05). The uncolored profiles denote no significant enrichment. The profile ID and the number of genes in the profile are shown above the chart. (C–D) Venn diagram showing the up- and downregulated circRNAs in both the hippocampus and cerebellum. C: upregulated circRNAs. D: downregulated circRNAs.