FGF19 regulation of lipid homeostasis in the liver. fibroblast growth factor (FGF), fibroblast growth factor receptor (FGFR), β-Klotho (KLB), small heterodimeric partner (SHP), FGFR substrate 2 alpha (FRS2α), extracellular signal-regulated kinase 1/2 (ERK1/2), peroxisome proliferated associated receptor gamma-2 (PPARγ-2), dna methyl transferase 3A (DMNT3A), sterol regulatory element binding protein 1 (SREBP1), fatty acid synthase (FAS), acyl-coA carboxylase (ACC).