highly significantp -value = 2.76×10 −8
Comparing the full set of 1377 differentially expressed genes to those contained within the gene ontology term “central nervous system myelination” (accession number GO:0022010), we found highly significant enrichment of myelination-related genes (Fisher’s exact test, odds ratio = 3.66, p -value = 2.76×10 −8 ).