中国药物警戒 ›› 2014, Vol. 11 ›› Issue (10): 577-579.

• 基础与临床研究 •    下一篇

pH敏感结肠宁靶向微丸的急性毒性

王英婷   

  1. 济宁市第一人民医院, 山东济宁272000
  • 收稿日期:2014-03-31 修回日期:2016-02-03 出版日期:2014-10-08 发布日期:2016-03-02
  • 作者简介:王英婷,女,本科,主管药师,中药质量研究。

WANG Ying-ting (First People Hospital of Jining, Shandong Jining 272000, China)

  • Received:2014-03-31 Revised:2016-02-03 Online:2014-10-08 Published:2016-03-02

摘要: 摘要:目的 研究pH敏感结肠宁靶向微丸对小鼠的急性毒性,为该药的安全评价提供重要的基础研究资料。方法 首先进行小鼠急性毒性的预实验,然后进行小鼠急性最大给药量实验。急性最大给药量实验小鼠40只随机分成试药组和空白对照组,雌雄各半,试药组灌胃,灌胃量40 mL·kg-1·d-1,空白组给蒸馏水,观察毒理反应。比较1 d、7 d和14 d体重,实验结束后,称重肝脏、脾脏和肾脏,进行脏体比值比较。结果 急性毒性实验过程无小鼠死亡,有被毛竖立、肢体轻微震颤、反应迟钝、饥饿感、频繁排便、视网膜苍白等症状,半数致死量无法获得。小鼠急性最大给药量实验第14 d的肝脏、脾脏和肾脏的脏体比值有差异,但不显著(P>0.05),最大给药量是78.496 g·kg-1·d-1,是成人日用药量的237.9~314.0倍。结论 小鼠最大给药量与成人日用量的比值大于100,提示pH敏感结肠宁靶向微丸在推荐的使用剂量范围内,具有较高的安全性; 小鼠急性症状提示超量服用也有些毒副作用。

关键词: 靶向微丸, 急性毒性, 小鼠

Abstract: Objective To study the acute toxicity of the pH-triggered Jie-chang-ning colon-targeted pellets to mice, provide important basic data for further safety evaluation. Methods On the basis of the acute toxicity pre-experiment, the maximum daily dosage test was finished.40mice were randomly divided into drug-treated, control groups. The drug-treated mice were administrated orally with the pH-triggered Jie-chang-ning colon-targeted pellets with intragastric volume40mL·kg-1·d-1. The clinical responses were observed. The mice weight on the1st, 7th, 14th day, was weighed, compared. The viscera index of liver, kidney, spleen was compared on the14th day. Results The mice didn't die in the acute toxicity experiment, but erect hairs, slight tremor body, dull, hunger, frequent defecation, pale retina appeared. The half lethal dosewasn't determined. The viscera index of liver, kidney, spleen wasn't significantly different between the drug-treated, the control groups. The maximum daily dosage was78.496g·kg-1·d-1, which was237.9~314.0times of adult people. Conclusion The maximum daily dosage was more than100times dose of adult people, which explains the pH-triggered Jie-chang-ning colon-targeted pellets is safe within the recommended dosage range. The symptoms in the mice acute toxicity explain that side effects maybe appear for excessive use

Key words: Key words: colon-targeted pellets,
acute toxicity,

mice

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