Fig. 3: Irradiation and lithium treatment alter the DNA methylation status of gene promoters important for neurogenesis and control of transcription in hNSPCs.

a–b Volcano plot depicting the top enriched gene ontology terms in the category (a) “Biological process” and (b) “Molecular function”, for the genes with significantly hypomethylated promoter regions in the IR + LiCl group vs the IR only group (n = 510 genes, with deltaBeta <−0.05, p < 0.05 in 5’ UTR region), made with WebGestalt (parameters of analysis: enrichment method: ORA, enrichment category: geneontology, Fisher’s exact test, FDR < 0.05). c Pie charts depicting GO term analysis on the DNA binding transcription activity category. Presented in order, 82 demethylated genes (IR vs Control), 110 (LiCl + IR vs Control), 123 (LiCl + IR vs IR).