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中国药学(英文版)

• 【研究论文】 • 上一篇    下一篇

高效液相色谱法测定大鼠血浆中新型KCNQ/M通道开放剂QO58-lysin浓度的方法学建立与优化及其药代动力学研究

马天阳, 滕博川, 祁金龙, 张海林, 王克威*   

  1. 1. 北京大学医学部 药学院 天然药物及仿生药物国家重点实验室; 分子与细胞药理学系, 北京 100191
    2. 河北医科大学 药理学系, 石家庄 050017
    3. 北京大学 麦戈文脑科学研究所, 北京 100871
  • 收稿日期:2013-09-26 修回日期:2013-10-31 出版日期:2014-03-13 发布日期:2013-11-06
  • 通讯作者: *Corresponding author. Tel.: 86-10-82805605; E-mail: wangkw@bjmu.edu.cn
  • 作者简介:*Corresponding author. Tel.: 86-10-82805605; E-mail: wangkw@bjmu.edu.cn
  • 基金资助:
    Ministry of Science and Technology of China (Grant No. 2013ZX09103001-015 and 2013CB531300), and the National Science Foundation of China (Grant No. 81221002).

Development of high-performance liquid chromatography assay for pharmacokinetic analysis of KCNQ/M-channel opener QO58-lysin in rat plasma  

Tianyang Ma, Bochuan Teng, Jinlong Qi, Hailin Zhang, KeWei Wang*   

  1. 1. State Key Laboratory of Natural and Biomimetic Drugs, Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
    2. Department of Pharmacology, Hebei Medical University, Shijiazhuang 050017, China
    3. PKU-IDG/McGovern Institute for Brain Research, Peking University, Beijing 100871, China
  • Received:2013-09-26 Revised:2013-10-31 Online:2014-03-13 Published:2013-11-06
  • Contact: *Corresponding author. Tel.: 86-10-82805605; E-mail: wangkw@bjmu.edu.cn
  • About author:*Corresponding author. Tel.: 86-10-82805605; E-mail: wangkw@bjmu.edu.cn
  • Supported by:
    Ministry of Science and Technology of China (Grant No. 2013ZX09103001-015 and 2013CB531300), and the National Science Foundation of China (Grant No. 81221002).

摘要:

本研究建立了一种简单、可靠高效的定量检测电压门控KCNQ/M钾通道开放剂QO58-lysin在大鼠血浆中浓度的方法。采用高效液相色谱与紫外检测器, 使用反相C18色谱柱, 0.2 M乙酸铵乙腈(40:60, v/v)为流动相, 尼群地(nitrendipine)为内标物。QO58-lysin与尼群地平的色谱峰保留时间分别为3.8 min5.4 minQO58-lysin0.1–120 μg/mL浓度范围内具有良好线性(r2 = 0.9996), 最低检测浓度为0.1 μg/mL。根据FDA指南, 检测方法的准确度、精密度、回收率与稳定性皆符合要求。该方法成功应用于测定SD大鼠单剂量尾静脉注射QO58-lysin (10 mg/kg)的药代动力学研究。化合QO58-lysin在大鼠血浆的半衰期和消除半衰期分别为 (0.25±0.16) h (2.15±0.12) h

关键词: KCNQ开放剂, QO58-lysin, 高效液相色谱法, 药代动力学

Abstract:

A simple, reliable and efficient assay for quantitative analysis of a novel Kv7/KCNQ/M-channel opener QO58-lysin in rat plasma was developed using high-performance liquid chromatography (HPLC) with UV detection. Separation of compound QO58-lysin from plasma was achieved using a reverse-phase C18 column with a mobile phase of 0.2 M ammonium acetate in H2O–acetonitrile (40:60, v/v) with nitrendipine used as an internal standard (IS). The retention times of QO58-lysin and the IS in rat plasma were 3.8 and 5.4 min, respectively. Calibration curve was linear ranging from 0.1 to 120 μg/mL with correlation coefficient (r2) of 0.9996. The lower limit of quantification was 0.1 μg/mL. Accuracy, precision, recovery as well as stability were all within acceptable criteria according to Food and Drug Administration (FDA) guidelines. This validated assay wassuccessfully applied to determine the pharmacokinetics of QO58-lysin administered intravenously (10 mg/kg) in SD rats. The distribution and elimination half-life of QO58-lysin in plasma was (0.25±0.16) h and (2.15±0.12) h, respectively.

Key words: KCNQ opener, QO58-lysin, HPLC, Pharmacokinetics 

中图分类号: 

Supporting: Ministry of Science and Technology of China (Grant No. 2013ZX09103001-015 and 2013CB531300), and the National Science Foundation of China (Grant No. 81221002).