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大鼠肝硬化肝癌模型的建立及超顺磁性氧化铁纳米粒子增强前后磁共振成像表现

黄瑞岁 李澄 顾晗 焦志云

引用本文:
Citation:

大鼠肝硬化肝癌模型的建立及超顺磁性氧化铁纳米粒子增强前后磁共振成像表现

DOI: 10.3969/j.issn.1001-5256.2013.10.012
基金项目: 

国家自然科学基金资助项目(30970812); 

详细信息
  • 中图分类号: R735.7

Establishment of rat model of liver cirrhosis or liver cancer and its magnetic resonance images before and after superparamagnetic iron oxide enhancement

Research funding: 

 

  • 摘要:

    目的建立大鼠肝硬化肝癌模型,研究肝硬化背景下超顺磁性氧化铁纳米粒(SPIO)增强前后肝癌的检出率,并分析SPIO在大鼠肝硬化肝癌诱发过程中不同病变组织内分布变化情况,探讨其用于评估肝脏Kupffer细胞功能的可行性。方法 30只雄性SD大鼠按完全随机分组的方法分成实验组20只和对照组10只,实验组予0.1 mg/ml的二乙基亚硝胺(DENA)溶液自由饮用,对照组饮用灭菌生理盐水。实验组分别于给药后第10、20周各取10只先进行磁共振(MR)平扫,再注入SPIO后1 h行MR增强扫描,大鼠扫描完成后立即处死。同理,对照组10只于第20周MR扫描完成后立即处死。分析MR图像,取血标本进行肝功能测定,取肝脏标本进行HE和普鲁士蓝染色病理学检查。两组间均数比较采用成组t检验,多组间均数比较采用方差分析,率的比较采用卡方检验。相关性分析采用Pearson’s相关分析。结果较之对照组,大鼠的AST及ALT 10周组明显升高,20周组显著升高,3者间差异有统计学意义(P均<0.001)。注入SPIO 1 h后增强扫描,肝脏组织信号强度下降百分比(PSIL)最大为正常肝组织,单纯性肝硬化、远癌肝...

     

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  • 收稿日期:  2013-07-19
  • 出版日期:  2013-10-20
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