Fig. 2

Identification and enrichment analysis of DEGs. (A) Volcano plot of differential expression analysis between the CAA and control groups. (B) Heatmap of differentially expressed gene clusters between the CAA and control groups. (C) Volcano plot of differential expression analysis between the insomnia and control groups. (D) Heatmap of differentially expressed gene clusters between the insomnia and control groups. (E) Venn diagram illustrating the intersection of upregulated and downregulated genes shared between the CAA and insomnia groups. (F) GO and KEGG enrichment analysis of DEGs.