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Br J Nutr. 2010 Feb;103(3):378-85. doi: 10.1017/S0007114509991772. Epub 2009 Oct 12.

Chronic intake of a high-cholesterol diet resulted in hepatic steatosis, focal nodular hyperplasia and fibrosis in non-obese mice.

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Division of Functional Histology, Department of Functional Biomedicine, Graduate School of Medicine, Ehime University, Shitsukawa, Toon-City, Ehime 791-0295, Japan.


We investigated the effects of a high-cholesterol (HC) diet administered long term (25 or 55 weeks) on metabolic disorders including hepatic damage in mice. The mice were fed the HC diet (15 % milk fat, 1.5 % cholesterol and 0.1 % cholic acid, w/w) for 25 or 55 weeks. Body and adipose tissue weights were similar to those of mice fed a control diet. Consumption of the HC diet long term resulted in hypercholesterolaemia, hepatic steatosis and gallstones. In addition, focal nodular hyperplasia (FNH) and mild fibrosis of the liver developed in all mice fed the HC diet for 55 weeks. Plasma levels of monocyte chemoattractant protein (MCP)-1 were elevated, and the level of hepatic platelet-derived growth factor (PDGF)-B protein was increased in mice fed the HC diet compared with those fed the control diet. Thus, it seems likely that the liver fibrosis and FNH caused by the long-term consumption of a HC diet may be partly due to an elevation of plasma MCP-1 and hepatic PDGF expression.

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