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FGF19 (fibroblast growth factor 19), belongs to the FGF family which are involved in cell growth, tissue repair, embryonic development and a number of other biological processes. FGF19 stimulates glucose in adipocytes and is involved in regulating bile acid homeostasis and metabolic state in an endocrine fashion. FGF19 is known to have interactions with FGFR4, FGF1, FGF18, FGF20 and FGF23. FGF19 is currently being studied for research on the following diseases and disorders: diarrhea, obesity, carcinoma insulin resistance, hepatitis and atherosclerosis.