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Int J Mol Sci. 2013 Oct 24;14(11):21240-57. doi: 10.3390/ijms141121240.

Lessons from mouse models of high-fat diet-induced NAFLD.

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1
Division of Immunology and Metabolism, Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan. terauchi@yokohama-cu.ac.jp.

Abstract

Nonalcoholic fatty liver disease (NAFLD) encompasses a clinicopathologic spectrum of diseases ranging from isolated hepatic steatosis to nonalcoholic steatohepatitis (NASH), the more aggressive form of fatty liver disease that may progress to cirrhosis and cirrhosis-related complications, including hepatocellular carcinoma. The prevalence of NAFLD, including NASH, is also increasing in parallel with the growing epidemics of obesity and diabetes. However, the causal relationships between obesity and/or diabetes and NASH or liver tumorigenesis have not yet been clearly elucidated. Animal models of NAFLD/NASH provide crucial information, not only for elucidating the pathogenesis of NAFLD/NASH, but also for examining therapeutic effects of various agents. A high-fat diet is widely used to produce hepatic steatosis and NASH in experimental animals. Several studies, including our own, have shown that long-term high-fat diet loading, which can induce obesity and insulin resistance, can also induce NASH and liver tumorigenesis in C57BL/6J mice. In this article, we discuss the pathophysiology of and treatment strategies for NAFLD and subsequent NAFLD-related complications such as NASH and liver tumorigenesis, mainly based on lessons learned from mouse models of high-fat diet-induced NAFLD/NASH.

PMID:
24284392
PMCID:
PMC3856002
DOI:
10.3390/ijms141121240
[Indexed for MEDLINE]
Free PMC Article
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