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中国临床药理学与治疗学 ›› 2014, Vol. 19 ›› Issue (7): 747-751.

• 基础研究 • 上一篇    下一篇

两种实验性肝纤维化大鼠模型肝脏组织学特点的比较研究

华晓萍1, 2, 张莉2, 黄利2, 谭正怀2, 陈庄1   

  1. 1 泸州医学院附属医院医学实验中心,泸州 646000,四川;
    2 四川省中医药科学院药理毒理研究所,成都 610041,四川
  • 收稿日期:2013-11-12 修回日期:2014-06-05 发布日期:2014-07-21
  • 通讯作者: 陈庄,男,博士,硕士研究生导师,研究方向:免疫病理学。Tel: 13550888750  E?mail: zhuangchen@hotmail.com
  • 作者简介:华晓萍,女,本科,工程师,研究方向:药理学及病理学。 Tel: 13688382747 E-mail: polly0927@sina.com

Morphological differences of liver between two liver fibrosis models induced by dimethylnitrosamine and thioacetamide

HUA Xiao-ping1, 2, ZHANG Li2, HUANG Li2, TAN Zheng-huai2, CHEN Zhuang2   

  1. 1 Experimental Medicine Center, Affiliated Hospital of Luzhou Medical College, Luzhou 646000, Sichuan, China;
    2 Sichuan Academy of Chinese Medicine Sciences, Chengdu 610041, Sichuan,China
  • Received:2013-11-12 Revised:2014-06-05 Published:2014-07-21

摘要: 目的 对二甲基亚硝胺(DMN)及硫代乙酰胺(TAA)诱导的肝纤维化进行形态学比较。方法 0.5%DMN腹腔注射(2 mL/kg,每周3次,连续4周)或自由饮用TAA水溶液(0.03% TAA饮用9周后改用 0.04%TAA饮用6周)两种方法制备大鼠肝纤维化模型,在造模完成后,恢复4周,比较两种造模方法成功率、肝内胶原沉着情况及α-肌动蛋白(α-SMA)表达情况。结果 DMN造模动物死亡率高(>30%),TAA模型无动物死亡;DMN模型纤维化严重程度较一致,造模成功率均较TAA模型高(P<0.01);DMN模型胶原沉着面积与TAA模型相当;DMN模型α-SMA 表达高于TAA模型(P<0.01)。结论 腹腔注射DMN法诱导肝纤维化优于自由摄取TAA法。

关键词: 二甲基亚硝胺, 硫代乙酰胺, 肝纤维化, 形态学

Abstract: AIM: To compare the morphological differences of liver between the two liver fibrosis models induced by dimethylnitrosamine(DMN) and thioacetamide(TAA). METHODS: 0.5% DMN (2 mL/kg; 3 times/week) was injected into the abdominal cavity of SD rats for 4 weeks to create one kind of liver fibrosis model.To create another kind of liver fibrosis models, 0.03% TAA in drinking water was administered orally to SD rats for 9 weeks and then 0.04% TAA was administered orally to SD rats for other 6 weeks. After being treated with DMN or TAA, animals were not treated for 4 weeks for recovery. The morphology of liver was evaluated in two models based on the H&E stain and the severity of liver fibrosis was compared in two models with collagen volume fraction and the protein expression of α-SMA.RESULTS: The mortality of rat in the model induced by DMN was high(30%)but no animal was dead in the model induced by TAA. The success rate in the model induced by DMN were higher than those induced by TAA (P<0.01). And the uniformity of liver fibrosis severity in the model induced by DMN is better than the latter. The two models had the similar collagen volume fractions. The protein expression of α-SMA in the model induced by DMN was higher than that induced by TAA (P<0.01).CONCLUSION: The model induced by DMN is better than that induced by TAA.

Key words: dimethylnitrosamine, thioacetamide, liver fibrosis, morphological difference

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