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J Biomed Res. 2013 Jan;27(1):1-13. doi: 10.7555/JBR.27.20120077. Epub 2012 Dec 1.

Lipoprotein metabolism in nonalcoholic fatty liver disease.

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Department of Medicine, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, MA, USA;


Nonalcoholic fatty liver disease (NAFLD), an escalating health problem worldwide, covers a spectrum of pathologies characterized by fatty accumulation in hepatocytes in early stages, with potential progression to liver inflammation, fibrosis, and failure. A close, yet poorly understood link exists between NAFLD and dyslipidemia, a constellation of abnormalities in plasma lipoproteins including triglyceride-rich very low density lipoproteins. Apolipoproteins are a group of primarily liver-derived proteins found in serum lipoproteins; they not only play an extracellular role in lipid transport between vital organs through circulation, but also play an important intracellular role in hepatic lipoprotein assembly and secretion. The liver functions as the central hub for lipoprotein metabolism, as it dictates lipoprotein production and to a significant extent modulates lipoprotein clearance. Lipoprotein metabolism is an integral component of hepatocellular lipid homeostasis and is implicated in the pathogenesis, potential diagnosis, and treatment of NAFLD.


apolipoprotein; hepatic steatosis; lipoprotein metabolism; nonalcoholic fatty liver disease (NAFLD); nonalcoholic steatohepatitis; very low density lipoprotein

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