高果糖喂養(yǎng)大鼠致脂肪肝的機(jī)制及非諾貝特的干預(yù)作用
[Abstract]:Objective to observe the mechanism of fatty liver induced by high fructose diet and the intervention effect of fenofibrate. Methods male Wistar rats were randomly divided into control group, high fructose group and fenofibrate group [treated with fenofibrate 30 mg/ (kg 路d) after 8 weeks of high fructose feeding]. After 12 weeks of feeding, the rats were killed and the contents of serum alanine aminotransferase (ALT), aspartate aminotransferase (AST), total cholesterol (TC), free glycerol (TG) and liver TG in each group were measured. The expression of immunoglobulin heavy chain binding protein (Bip), autophagy related protein autophagy related gene (Atg7), yeast autophagy associated protein 6 homologue (beclin1), autophagy labeled light chain protein 3 (LC3) and rapamicin target protein (m TOR) protein in autophagy related pathway mammals were measured. Results compared with the control group and fenofibrate group, the blood AST, blood TC, free TG and liver TG in the high fructose group were significantly higher than those in the control group and fenofibrate group (all P 0.01). Compared with the control group and fenofibrate group, the expression of Fas,Bip,m TOR in the liver of rats with high fructose increased and the expression of Atg7,beclin1,LC3 decreased. Conclusion long-term high fructose feeding can induce liver lipid deposition and hepatocytes injury, accompanied by endoplasmic reticulum stress and autophagy. Fenofibrate can improve fatty liver and hepatocytes injury induced by high fructose diet. The mechanism may be related to fenofibrate affecting Fas and improving endoplasmic reticulum stress and autophagy.
【作者單位】: 河北醫(yī)科大學(xué)研究生院;河北省人民醫(yī)院內(nèi)分泌科;河北醫(yī)科大學(xué)內(nèi)科學(xué)教研室;
【基金】:河北省自然科學(xué)基金項(xiàng)目(編號(hào):H2015307034)
【分類號(hào)】:R575
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