Abstract
The number of patients with nonalcoholic fatty liver disease (NAFLD) is increasing. Hepatic steatosis is a major risk factor for hepatic failure after ischemia-reperfusion (I/R) injury. Hydrolyzed whey peptide (HWP) is a functional liquid-type nutritional diet containing whey peptide, which has previously been shown to exert anti-inflammatory effects. In the present study, we examined the effects of HWP on the hepatic I/R injury in a rat NAFLD model. Rats fed a methionine/choline-deficient diet for 4weeks were divided into two groups after 30min of whole liver ischemia. In Group-M, HWP was given immediately after reperfusion and every 6h thereafter. In Group-C, the vehicle was given in the same manner. The liver function tests and microscopic findings of the liver after reperfusion were compared between the two groups. The serum transaminase levels in Group-M were significantly lower than those in Group-C after reperfusion. The gene expression levels of IL-6 and inducible nitric oxide synthase (iNOS) were significantly lower in Group-M compared to Group-C. The TNF-α and uncoupling protein-2 (UCP-2) expression levels were also markedly lower in Group-M. The hepatic necrotic areas in Group-M were significantly smaller than those in Group-C. The administration of a HWP diet ameliorated the hepatic I/R injury in rats with NAFLD.
Published Version
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