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大鼠口服东莨菪素后的组织分布和排泄特征研究

夏玉凤*, 戴岳, 梁惠贞   

  1. 1. 中国药科大学 天然药物活性组分与药效国家重点实验室, 江苏 南京 210009
    2. 中国药科大学 中药药理教研室, 江苏 南京 210009
  • 收稿日期:2011-10-25 修回日期:2012-02-01 出版日期:2012-03-15 发布日期:2012-03-15
  • 通讯作者: 夏玉凤*

Studies on tissue distribution and excretion of scopoletin after oral
administration in rats

Yu-Feng Xia*, Yue Dai, Hui-Zhen Liang   

  1. 1. State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
    2. Department of Pharmacology of Chinese Materia Medica, China Pharmaceutical University, Nanjing 210009, China
  • Received:2011-10-25 Revised:2012-02-01 Online:2012-03-15 Published:2012-03-15
  • Contact: Yu-Feng Xia*

摘要: 研究东莨菪素在大鼠体内的组织分布和排泄特征, SD大鼠灌胃东莨菪素(50 mg/kg), 分别于给药后5, 15, 30, 60, 120, 240分钟取大鼠心、肝、脾、肺、肾、肌肉、脂肪、脑、睾丸、子宫、胃、小肠等组织器官测定其原形药物浓度。结果表明, 东莨菪素广泛分布于各组织器官且于给药后15分钟浓度即达峰值, 其中肝、肾、胃和小肠含量较高。此外, 东莨菪素在胆汁、尿液、粪便的排泄研究显示, 胆汁、尿液、粪便的累积排泄量分别为0.032%, 3.752%和0.784%。表明东莨菪素在大鼠体内主要以代谢物的形式消除。

关键词: 东莨菪素, 组织分布, 排泄

Abstract: The present study aimed at studying the characteristics of tissue distribution and excretion of scopoletin, a coumarin compound, in Sprague-Dawley rats. Scopoletin was orally administered at a dose of 50 mg/kg, and the concentrations in heart, liver, spleen, lung, kidney, muscle, fat, brain, testis, uterus, stomach and small intestine were determined at 5, 15, 30, 60, 120, 240 min post-dose, respectively. It was shown that scopoletin was widely distributed into various tissues and reached the maximal concentrations in most tissues at 15 min post-dose, and the levels in liver, kidney, stomach and small intestine were relatively higher. Furthermore, the excretions of scopoletin in bile, urine and feces were only 0.032%, 3.752% and 0.784%, respectively, suggesting that scopoletin was mainly eliminated by metabolism rather than excretion as parent drug.

Key words: Scopoletin, Tissue distribution, Excretion

中图分类号: 

Supporting: Foundation items: The Fundamental Research Funds for the Central Universities (Grant No. JKZ2011016) and the Priority Academic Program Development of Jiangsu Higher Education Institutions.

*Corresponding author. Tel.: 86-25-86185336