We focused on the following terms: Wnt signalling, TGF-β signalling, DNA repair, Pathways in cancer, Apoptosis, Cell adhesion molecules, Colorectal cancer, DNA replication, Hippo signalling pathway, MAPK signalling pathway, MicroRNAs in cancer, PI3K-Akt and PPAR signalling. This evidence concerns the gene PPARA and colorectal cancer.