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中国临床药理学与治疗学 ›› 2012, Vol. 17 ›› Issue (12): 1378-1383.

• 定量药理学 • 上一篇    下一篇

盐酸关附甲素在Beagle犬体内口服药代动力学和绝对生物利用度研究

孙建国1, 肖亚楠1, 彭英1, 张雪媛1, 吴慧1, 俞广为1, 刘静涵2, 吴民淑1,3, 阿基业1, 王广基1   

  1. 1中国药科大学药代动力学重点实验室,2中国药科大学天然药物化学教研室,南京 210009,江苏;
    3中国药理学报,上海 200031
  • 收稿日期:2012-10-17 修回日期:2012-11-14 发布日期:2012-12-31
  • 通讯作者: 王广基,通信作者,男,教授, 研究方向: 药物代谢动力学。E-mail: guangjiwang@hotmail.com
  • 作者简介:孙建国,男,副教授,研究方向: 药物代谢动力学。E-mail: jgsun_cpucn@yahoo. cn
  • 基金资助:
    “十一五”重大新药创制项目资助(2009 ZX09103-345); 国家级大学生实践创新训练计划项目资助(J0630858,201210316068)

Pharmacokinetic and absolute bioavailability study of Guanfu Base A hydrochloride in Beagle dogs

SUN Jian-guo1, XIAO Ya-nang1, PENG Ying1, ZHANG Xue-yuan1, WU Hui1, YU Guang-wei1, LIU Jing-han2, WU Ming-shu1, 3, A Ji-ye1, WANG Guang-ji1   

  1. 1Key Lab of Drug Metabolism and Pharmacokinetics, 2Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, Jiangsu,China;
    3Acta Pharmacologica Sinica, Shanghai 200031,China
  • Received:2012-10-17 Revised:2012-11-14 Published:2012-12-31

摘要: 目的: 采用液相色谱-质谱联用分析方法研究盐酸关附甲素在Beagle犬体内的吸收特性。方法: 6只Beagle犬采用双交叉实验设计,空腹单次静脉或灌胃给予盐酸关附甲素(4 mg/kg),采集不同时间点的血样,采用LC-MS法进行血浆药物浓度测定,求算相应的药代动力学参数。结果: 6只Beagle犬灌胃 4 mg/kg 盐酸关附甲素后体内过程符合二房室模型,实测的血浆药物浓度曲线下面积AUC0-48 h为(18429±7281) ng·mL-1·h,最大血浆药物浓度Cmax为(1988±972) ng/mL,达峰时间tmax为(0.8±0.7)h,末端相消除半衰期t1/2 为(11.2±1.6)h。与静脉注射给药相比其绝对生物利用度F为(99.0±11.2)%,拟合求得的吸收速率常数(K01)为(7.563±4.612) /h。结论: 盐酸关附甲素在Beagle犬体内吸收迅速且完全,临床上可考虑采用口服剂型代替注射剂以便于病人用药。

关键词: 盐酸关附甲素, 液相色谱-质谱联用, 药代动力学, Beagle犬

Abstract: AIM: An LC-MS method was developed and validated for the analysis of Guanfu Base A in dog plasma to support the pharmacokinetic study. METHODS: Blood was withdrawn at different times and absolute bioavailability was studied by LC-MS at dosage of 4 mg/kg in 6 beagle dogs. RESULTS: The pharmacokinetic of Guanfu Base A in Beagle dogs fits best to two compartment model with AUC0-48 h, Cmax, tmax and half life t1/2 of (17623.9±7006.4) ng·mL-1·h, (1988±972)ng/mL, (0.8±0.7) h, and (11.2±1.6) h, respectively. Compared with i.v administration, the absolute bioavailability of Guanfu Base A was(99.0±11.2)%, with absorption rate (K01)at (7.563±4.612)/h.CONCLUSION: After oral administration, GFA can be rapidly and completely absorbed by Beagle dogs, which suggested that oral administration of Guanfu Base A could be a substitute way for anti-arrhythmic treatment.

Key words: Guanfu Base A hydrochloride, LC-MS, Pharmacokinetics, Beagle dogs

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