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中国临床药理学与治疗学 ›› 2006, Vol. 11 ›› Issue (11): 1248-1252.

• 研究原著 • 上一篇    下一篇

甘草酸对实验性肝内胆汁郁积大鼠的预防和治疗作用

郭继强1, 丁宇1, 廖娜1, 赵营1,2, 翟德胜1, 杨锦南1, 陈西敬2   

  1. 1新乡医学院, 新乡 453003, 河南;
    2中国药科大学药学院药物代谢动力学中心, 南京 210009, 江苏
  • 收稿日期:2006-07-18 修回日期:2006-08-13 出版日期:2006-11-26 发布日期:2020-11-06
  • 通讯作者: 陈西敬,男, 博士, 副教授, 硕士生导师, 主要研究方向:药物代谢动力学。Tel:025-83271286  E-mail:chenxj@jlonline.com
  • 作者简介:郭继强, 男, 硕士, 讲师, 主要研究方向:免疫毒理学。Tel:13613903578 E-mail:gjqxx@xxmc.edu.cn
  • 基金资助:
    国家自然科学基金资助项目( No30472060)

Protective effect of glycyrrhizin on acute cholestasis induced by alphanaphthylisothiocyanate in rats

GUO Ji-qiang1, DING Yu1, LIAO Na1, ZHAO Ying1,2, ZHAI De-sheng1, YANG Jin-nan1, CHEN Xi-jing2   

  1. 1Xinxiang Medical College, Xinxiang 453003 , Henan, China;
    2Center of Drug Metabolism and Pharmacokinetics,China Pharmaceutical University, Nanjing 210009, Jiangsu, China
  • Received:2006-07-18 Revised:2006-08-13 Online:2006-11-26 Published:2020-11-06

摘要: 目的 探讨甘草酸( glycyrrhizin, GL) 和地塞米松( dexamethasone, DEX) 对α-萘异硫氰酸( alphanaphthylisothiocyanate,ANIT) 致急性肝内胆汁郁积型肝炎的作用。方法 应用ANIT 制造大鼠急性肝内胆汁郁积型肝炎模型, 分别应用GL 和DEX 进行预防性和治疗性给药, 观察GL 和DEX 对大鼠肝功能生化指标、肝组织病理改变、2 h 胆汁流量和酮洛芬葡萄糖醛酸结合物( ketoprofen glucuroide, KPG) 的累计胆排泄率的影响。结果 DEX 预防性给药明显减轻胆管损伤, 对肝细胞损伤无保护作用。ANIT 染毒后3 h 给予DEX 不能减轻胆汁郁积, 染毒后12 h 给予DEX 使肝细胞损伤加重。预防性给予GL 和染毒后3 h 给予GL 均能明显减轻胆汁郁积和肝细胞损伤。结论 在实验性急性肝内胆汁郁积型肝炎早期,GL 具有明显的预防和治疗作用。

关键词: 甘草酸, 地塞米松, 肝内胆汁郁积, α-萘异硫氰酸

Abstract: AIM: To investigate the effects of glycyrrhizin(GL) and dexamethasone( DEX) on alpha-naphthylisothiocyanate( ANIT) induced acute cholestasis in rats.METHODS: Acute cholestasis in rats was induced by ANIT, and the effects of GL and DEX on acute cholestasis were examined by serology determination, histological assessment of hepatic injury and bile excretion experiments.RESULTS: The protection of DEX pretreatment was directed toward cholangiocytes rather than hepatocytes.Rats remedially treated with DEX 3 h after ANIT administration were not resistant to ANIT toxicity.Notably,remedial treatment with DEX 12 h after ANIT enhanced ANIT toxicity.However, GL attenuated both bile duct and hepatocyte damage induced by ANIT in the initial phase of impairment.CONCLUSION: GL exhibited better protection against ANIT-induced acute cholestasis than DEX.In the initial phase of impairment of acute cholestasis, the protection of GL maybe partially due to modifications of metabolism and excretion of ANIT and anti-inflammatory effect.

Key words: glycyrrhizin, dexamethasone, alphanaphthylisothiocyanate, intrahepatic cholestasis

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