非酒精性脂肪肝大鼠脂质代谢及病理变化的动态观察
作者:
作者简介:

楼琦(1983-),男,助理实验师,研究方向:实验动物疾病模型,E-mail:louqi@126.com。

基金项目:

“十一五”科技支撑计划重点项目(2009BAI83B02);浙江省医药卫生计划项目(2006QN001, 2009A001)。


The Dynamic Observation of Lipid Metabolism and Pathological Changes in Non-alcoholic Fatty Liver Rats
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    摘要:

    目的通过高脂饮食建立NAFLD大鼠模型,连续监测4~16周模型动物肝功能、脂质代谢、胰岛素抵抗及肝细胞凋亡在NAFLD进展过程中的变化情况及相互关系,为该模型在脂肪肝发病机制、脂肪肝治疗药物评价等方面的应用提供参考依据。方法SD大鼠50只,除正常对照组外,其余动物饲喂高脂饲料,分别检测4,8,12,16周大鼠血清GLU、CHO、TG、HDL、LDL、GPT、GOT及胰岛素水平,肝脏组织切片进行病理学及细胞凋亡观察,进一步分析大鼠肝功能、脂质代谢、胰岛素抵抗及肝细胞凋亡对肝组织病理改变的影响。结果模型组大鼠4周后就出现肝功能损伤,脂质代谢紊乱、胰岛素抵抗,肝细胞凋亡8 W后明显增加,肝细胞脂变及炎症为肝组织病理变化的主要特征,且造模时间越长,病变程度越严重。结论经过高脂饲料的喂养,SD大鼠在4~16周内可形成病变程度逐步加重的NAFLD模型,肝功能损伤,脂质代谢紊乱及肝细胞凋亡是引起非酒精性脂肪肝中脂肪变性和炎症的重要因素,该模型可应用于脂肪肝治疗药物评价等方面。

    Abstract:

    ObjectiveTo investigate the pathogenesis of nonalcoholic fatty liver disease(NAFLD), provide a reference for the evaluation of fatty liver therapeutic effect, the liver function, lipid metabolism,insulin resistance and liver apoptosis of NAFLD rats established by high cholesterol feeding were continuously monitored from 4~16 weeks. Methods 40 NAFLD rats established by high cholesterol feeding were randomly divided into the 4,8,2,6 weeks model group and a group of normal rats were set up for control, the serum GLU、CHO、TG、HDL、LDL、GPT、GOT and insulin were tested, the liver apoptosis and pathological changes were observed, then analyzed the effect of the liver function, lipid metabolism,insulin resistance and apoptosis on the pathological changes in non-alcoholic fatty liver rats. ResultsAfter 4 weeks of high cholesterol feeding, the rats had got the liver injury, disorder of lipid metabolism, insulin resistance. Liver cell apoptosis were increased obviously, and pathological changes were characterized by cell steatosis and inflammatory, the lesions became more serious with time went on. ConclusionsRats established by high cholesterol feeding could get the nonalcoholic fatty liver disease and the lesions became more serious with time over during 4~16 weeks. Lipid metabolism disorder and insulin resistance were the important cause of liver cell steatosis and inflammatory. The model we established is suitable for the evaluation of fatty liver therapeutic effect.

    参考文献
    [1] 范建高,曾民德.脂肪性肝病[M].北京:人民卫生出版社,2005:137.
    [2] Day CP.Non-alcoholic fatty liver disease:a massive problem[J].Clin Med, 1,1(2):176-178.
    [3] 黄春明,李瑜元.非酒精性脂肪肝的流行病学[J].现代消化及介入诊疗,9,4(4):233-237.
    [4] Ahmed MH, Abu EO, Byrne CD.Non-Alcoholic Fatty Liver Disease (NAFLD):New challenge for general practitioners and important burden for health authorities? [J].Prim Care Diabetes,0,4(3):129-137.
    [5] Arrese M, Karpen SJ.Nuclear receptors, inflammation, and liver disease:insights for cholestatic and fatty liver diseases[J].Clin Pharmacol Ther, 2010,87(4):473-478.
    [6] Cuadrado A, Orive A, Garcia-Suarez C, et al.Non-alcoholic steatohepatitis(NASH)and hepatocellular carcinoma[J].Obes Surg,5,5:442-446.
    [7] Yang S, Lin HZ, Hwang J, et al.Hepatic hyperplasia in noncirrhotic fatty livers:is obesity-related hepatic steatosis a premalignant condition? [J].Cancer Res,1,6l(13):5016-5023.
    [8] Wieckowska A, Zein NN, Yerian LM, et al.In vivo assessment of liver cell apoptosis as a novel biomarker of disease severity in non-alcoholic fatry liver disease[J].Hepatology,6,4(1):27-33.
    [9] Adams LA, Angulo P.Treatment of non-alcoholic fatty liver disease[J].Post grad Med J, 2006 May;82(967):315-22.
    [10] 钟民涛,黄敏,卢静,等.长爪沙鼠速发型高脂血症模型的初步建立[J].中国实验动物学报,6,4(3):217-221.
    [11] 王芃芃,黄磊,伍晓雄,等.高脂饮食对小鼠脂质代谢和leptin基因表达水平的影响[J].中国实验动物学报,8,6(1):40-44.
    [12] Koteish A, Mae Diehl A.Animal models of steatohepatitis[J].Best Pract Res Clin Gastroenterol, 2,6(5):679-690.
    [13] 石巧娟,刘月环,楼琦,等.非酒精性脂肪肝大鼠PPARα基因表达及脂代谢和胰岛素水平的变化[J] .中国比较医学杂志,9,9(8):26-30.
    [14] Rust C, Gores GJ.Apoptosis and liver [J].Am J Med,0,8(7):567-574.
    [15] Benedetti A, Marucci L.The significance of apoptosis in the liver[J].Liver,9,9(6):453-463.
    [16] Feldstein AE, Canbay A, Angulo P, et al.Hepatocyte apoptosis and fas expression are prom inent features of human non-alcoholic steatohepatitis[J].Gastroenterology,3,5(2):437-443.
    [17] Feldstein AE, Canbay A, Guicciardi ME, et al.Diet associated hepatic steatosis sensitizes to Fas mediated liver injury in mice[J].J Hepatol,3,9(6):978-983.
    [18] Lawson JA,Fisher MA,Simmons CA .Parenchymal cell apoptosis as a signal for sinusoidal sequestration and transendothelial migration of neutrophils in murine models of endotoxin and Fas-antibody-induced liver injury [J].Hepatology,8,8(3):761-767.
    [19] Jaeschke H.Inflammationion in response to hepatocellular apoptosis[J].Hepatology,2,5(4):964-966.
    [20] Sanyal AJ, Campbell-Sangert C, Mirshahi F, et al.Non-alcoholic steatohepatitis:association of insulin resistance and mitochondrial abnormalities [J].Gastroentero1ogy,1,0(5):1183-1192.
    [21] Marchesini G, Moscatiello S, Di Domizio S, et al.Obesity-associated liver disease[J].J Clin Endocrinol Metab, 8,3(11 Suppl 1):S74-S80.
    [22] Marchesini G, Pagotto U, Bugianesi E, et al.Low ghrelin concentrations in nonalcoholic fatty liver disease are related to insulin resistance[J].J Clin Endocrinol Metab.3,8(12):5674-5679.
    [23] Day CP,James OF.Steatohepatitis:a tale of two“hits"[J].Gastroenterology,8,4(4):842-845.
    [24] Brunt EM.Pathology of nonalcoholic steatohepatitis[J].Hepatol Res,5,3(2):161-166.
    [25] Harrison SA, Kadakia S, Lang KA, et al.Nonalcoholic steatohepatitis:What we know in the new millennium[J].Am J Gastroenterol,2,7:2714-2724.
    [26] Cuadrado A, Orive A, Garcia-Suarez C, et al.Non-alcoholic steatohepatitis(NASH)and hepatocellular carcinoma[J].Obes Surg, 5,5(3):442-446.
    [27] Yang S,Lin HZ,Hwang J,et al.Hepatic hyperplasia in noncirrhotic fatty livers:is obesity-related hepatic steatosis a premalignant condition? [J].Cancer Res, 1,6l(13):5016-5023.
    [28] Wieckowska A,Zein NN,Yerian LM,et al.In vivo assessment of liver cell apoptosis as a novel biomarker of disease severity in non-alcoholic fatry liver disease [J].Hepatology,6,4(1):27-33.
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楼琦,石巧娟,郭红刚,李巍,卢领群,周文伟,萨晓婴.非酒精性脂肪肝大鼠脂质代谢及病理变化的动态观察[J].中国比较医学杂志,2012,(3):5~11.

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