title: Fibroblast growth factor 19 treatment ameliorates disruption of hepatic lipid metabolism in farnesoid X receptor (Fxr)-null mice.
abstract: Human fibroblast growth factor 19 (FGF19) is an enterohepatic hormone that is involved in the regulation of hepatic metabolism of bile acids, lipids, and glucose. Farnesoid X receptor (Fxr)-null mice exhibit steatosis-like symptoms, showing higher hepatic lipid levels than with the wild-type mice. We investigated the influence of FGF19 treatment on hepatic lipogenesis in Fxr-null mice. Recombinant FGF19 treatment (400 µg/kg/d) for 3 d prevented the accumulation of lipid droplets and decreased serum alanine aminotransferase activity and hepatic lipid levels, including those of triglycerides and free fatty acids. The treatment significantly decreased the hepatic mRNA levels of acetyl-CoA carboxylase 1 (Acc1), Cd36, and sterol regulatory element-binding protein-1c (Srebp-1c) as well as those of acetyl-CoA carboxylase 2 (Acc2), stearoyl CoA desaturase 1 (Scd1), and Cyp7a1. FGF19 treatment (4 µg/kg/d) for 3 d also decreased the hepatic free fatty acid levels and mRNA levels of Acc1, Cd36, and Srebp-1c. These results indicate that FGF19-mediated signaling ameliorates disrupted hepatic lipogenesis in Fxr-null mice.
authors: Division of Drug Metabolism and Molecular Toxicology, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan. miyata@m.tohoku.ac.jp
authors: Masaaki
authors: M
authors: Miyata
authors: Yumi
authors: Y
authors: Sakaida
authors: Hitomi
authors: H
authors: Matsuzawa
authors: Kouichi
authors: K
authors: Yoshinari
authors: Yasushi
authors: Y
authors: Yamazoe
mesh_terms: D000410:Alanine Transaminase / Q000097:blood*; D000469:Alkaline Phosphatase / Q000097:blood; D000818:Animals; D005260:Female; D005346:Fibroblast Growth Factors / Q000235:genetics / Q000494:pharmacology*; D015870:Gene Expression / Q000187:drug effects; D050356:Lipid Metabolism / Q000187:drug effects* / Q000235:genetics; D008099:Liver / Q000187:drug effects* / Q000378:metabolism; D051379:Mice; D018345:Mice, Knockout; D012333:RNA, Messenger / Q000378:metabolism; D018160:Receptors, Cytoplasmic and Nuclear / Q000172:deficiency* / Q000235:genetics; D011994:Recombinant Proteins / Q000494:pharmacology; D020133:Reverse Transcriptase Polymerase Chain Reaction; D000099150:Receptor, Farnesoid X-Activated
chemical_list: D000410:Alanine Transaminase; D000469:Alkaline Phosphatase; D005346:Fibroblast Growth Factors; D012333:RNA, Messenger; D018160:Receptors, Cytoplasmic and Nuclear; D011994:Recombinant Proteins; D000099150:Receptor, Farnesoid X-Activated; C117476:FGF19 protein, human