欢迎访问《中国临床药理学与治疗学》杂志官方网站,今天是 分享到:

中国临床药理学与治疗学 ›› 2012, Vol. 17 ›› Issue (6): 654-658.

• 基础研究 • 上一篇    下一篇

微透析-高效液相色谱法测定米诺环素大鼠血液和脑内的药动学

董文彬1, 程佳祎2, 陈爱瑛1, 郑高利1   

  1. 1浙江省医学科学院药物研究所,杭州 310013,浙江;
    2浙江中医药大学药学院,杭州 310053,浙江
  • 收稿日期:2012-01-03 修回日期:2012-04-05 出版日期:2012-06-26 发布日期:2012-06-25
  • 通讯作者: 郑高利,男,研究员,硕士生导师,研究方向:神经药理学与心脑血管药理学。Tel: 0571-88215620 E-mail: gaoli-z@163.com
  • 作者简介:董文彬,男,硕士研究生,研究方向:神经药理学。E-mail: dwb4045@163.com
  • 基金资助:
    浙江省医学重点学科群项目(XKQ-010-001);浙江省公益技术研究社会发展项目(2011C23047)

Pharmacokinetic study of minocycline in rat blood and brain using microdialysis technique combined with HPLC

DONG Wen-bin1, CHENG Jia-yi2, CHEN Ai-ying1, ZHENG Gao-li1   

  1. 1Institute of Materia Medica, Zhejiang Academy of Medical Sciences, Hangzhou 310013, Zhejiang, China;
    2College of Pharmaceutical Science, Zhejiang University of Traditional Chinese Medicine, Hangzhou 310053, Zhejiang, China
  • Received:2012-01-03 Revised:2012-04-05 Online:2012-06-26 Published:2012-06-25

摘要: 目的: 研究米诺环素在大鼠血液和脑内的药动学。方法: 采用微透析结合高效液相色谱技术,测定米诺环素大鼠血浆蛋白结合率;大鼠尾静脉注射米诺环素,测定给药后 10 h 内不同时间点大鼠血液、海马CA1区中游离药物的浓度。结果: 米诺环素大鼠血浆蛋白结合率为 82.08%,给药后迅速进入脑组织,在给药后 3.83 h 左右浓度达到峰值,其后缓慢下降,脑组织的游离药物-时间曲线下面积(AUC0-10 h)可达血液的 62.42%。结论: 微透析结合高效液相色谱技术可以测定米诺环素的大鼠血浆蛋白结合率,并实现大鼠血液和脑组织中游离米诺环素浓度的动态监测。结果表明米诺环素易于透过血脑屏障,且能长时间维持较高浓度,从而发挥其神经保护作用。

关键词: 米诺环素, 药动学, 血浆蛋白结合率, 微透析, 高效液相色谱

Abstract: AIM: To investigate the pharmacokinetics of minocycline in rat blood and brain. METHODS: Microdialysis technique and HPLC were used to determine the plasma protein binding rate of minocylcine, and the concentrations of free minocycline in the blood and hippocampal CA1 region were determined at different intervals in 10 hours after the rat was received a single injection of minocycline via tail vein. RESULTS: The rat plasma protein binding rate of minocycline is 82.08%.Minocycline crossed the blood-brain barrier rapidly, and the concentration reached its peak (tmax) in 3.83 hours after injection, and then dropped slowly.The ratio of area under the curve (AUC0-10 h) in the brain to that in the blood is up to 62.42%. CONCLUSION: Microdialysis technique combined with HPLC could be utilized to successfully determine the rat plasma protein binding rate of minocycline, and to achieve dynamic monitoring of the free minocycline concentration in rat blood and brain.The results suggest that minocycline could easily across the blood-brain barrier and maintained its concentration at a high level for a long time, thus playing its neuroprotective role.

Key words: Minocycline, Pharmacokinetics, Plasma protein binding rate, Microdialysis, HPLC

中图分类号: