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中国临床药理学与治疗学 ›› 2006, Vol. 11 ›› Issue (5): 569-573.

• 研究原著 • 上一篇    下一篇

一种测定香烟烟气或尼古丁气雾环境中大鼠体内尼古丁摄入量的简单方法

陈岩1, 袁守军, 李正强1, 田增月, 徐兰平   

  1. 军事医学科学院放射与辐射医学研究所, 北京 100850;
    1吉林大学生命科学院, 长春 130023, 吉林
  • 收稿日期:2006-02-24 修回日期:2006-03-28 出版日期:2006-05-26 发布日期:2020-12-09
  • 通讯作者: 袁守军, 男, 博士, 副研究员, 研究生导师, 主要从事肿瘤药 理学和新药评价工作。 Tel:010-66930271   E-mail: yuansj@nic.bmi.ac.cn
  • 作者简介:陈岩, 男, 硕士研究生, 主要从事微生物与生化药学研究。 Tel:010-66931215   E-mail:icemanchen0901@sina.com

A simple method for determining content of nicotine in blood of rats ex-posed in burning cigarette smoke or nicotine fog

CHEN Yan1, YUAN Shou-jun, LI Zheng-qiang1, TIAN Zeng-yue, XU Lan-ping   

  1. Institute of Radiation Medicine, Academy of Military Medical Sciences, Beijing100850, China;
    1College of Life Scienc-es, Jilin University, Changchun 130023, Jilin, China
  • Received:2006-02-24 Revised:2006-03-28 Online:2006-05-26 Published:2020-12-09

摘要: 目的: 探讨大鼠暴露于香烟烟气或尼古丁雾化环境中, 体内尼古丁实际摄入量的测定方法。 方法: 考察氰化钾-巴比妥酸法测定尿中尼古丁代谢产物柯廷宁的可靠性。给大鼠缓慢恒速静脉输注不同 浓度的尼古丁溶液 1 h, 作为大鼠体内摄入尼古丁 量的参照, 收集大鼠 60 h 的全部尿液并测定柯廷宁 (cotinine) 含量作为尼古丁的排出量, 两者之间建立 标准曲线。 将大鼠置于香烟烟气或尼古丁气雾暴露 箱中 1 h, 收集大鼠 60 h 的全部尿液并测定柯廷宁 含量, 根据建立的标准曲线推算大鼠体内尼古丁的 实际摄入量。 结果: 给大鼠缓慢恒速输注不同浓度的尼古丁溶液和大鼠的柯廷宁排出量之间有良好的 线性关系, 能够根据柯廷宁的排出量推算尼古丁的摄入量。结论: 用氰化钾-巴比妥法测定柯廷宁尿中 含量能达到药物代谢技术要求。

关键词: 香烟, 尼古丁, 柯廷宁, 安全评价, 暴露, 测定方法

Abstract: AIM: To investigate the method of mea-suring the content of nicotine in the blood of rats exposed in burning cigarette smoke or nicotine fog.METHODS: The potassium cyanide-barbituric acid method for deter-mining cotinine, the metabolite of nicotine, in the urine of rats was evaluated.The nicotine solutions of various concentrations were infused to rats through tail vein with stable rate for one hour to make the standard curve of nic-otine in the blood of rats.Then, the total urine of 60 h was collected and the content of cotinine in the urine was measured as the output of nicotine from rats.The standard curve was established between the standard control of nic-otine and the output of cotinine.The ratswere exposed to the box filled with burning cigarette smoke or nicotine fog for 1 h, the total urine of 60 h was collected and the cont-ent of cotinine in the urine was measured, and the ab-sorbed content of cotinine in the blood of rats was calcu-lated according to standard curve equation, respectively. RESULTS: The standard control of nicotine and the out-put of nicotine in rat had a well linear relation, and the absorbed content of nicotine in the blood of rats could be estimated according to the output of the cotinine.CONCLUSION: The potassium cyanide-barbituric acid meth-od for determining cotinine in rat urine is consistent with the pharmacokinetical research.

Key words: cigarette, nicotine, cotinine, safety evaluation, exposure, measure

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