PPARG and hepatocellular carcinoma: Several signaling pathways (e.g., Wnt/β-catenin, phosphatidylinositol-3-kinase and protein kinase B, Hedgehog pathway, Yes-Associated Protein-Hippo Pathway (YAP-HIPPO), NF-κB pathway, regulation of lipid metabolism by peroxisome proliferator-activated receptor gamma (PPARγ), and fibroblast growth factor (FGF) pathway and its receptors (FGFRs)) have been identified as vital to HCC occurrence [26,27,28].