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灯盏乙素在家犬体内的药动学研究

李素华, 蒋学华*, 兰轲, 杨俊毅, 周静   

  1. 四川大学华西药学院, 成都 610041
  • 收稿日期:2003-02-16 修回日期:2003-08-10 出版日期:2003-09-15 发布日期:2003-09-15
  • 通讯作者: 蒋学华*

Pharmacokinetics of Scutellarin in Dogs

LI Su-hua, JIANG Xue-hua*, LAN Ke, YANG Jun-yi, ZHOU Jing   

  1. West China School of Pharmacy, Sichuan University, Chengdu 610041, China
  • Received:2003-02-16 Revised:2003-08-10 Online:2003-09-15 Published:2003-09-15
  • Contact: JIANG Xue-hua*

摘要: 目的 建立高效液相色谱法测定家犬血浆中灯盏乙素的浓度, 研究灯盏乙素在家犬体内的药动学. 方法 用高效液相色谱法测定6只家犬静脉注射灯盏乙素后不同时间血浆中灯盏乙素的浓度,绘制药-时曲线, 计算药动学参数. 结果 灯盏乙素的药-时曲线符合三室模型, T1/2piT1/2αT1/2β分别为1.05±0.80 min, 6.99±2.76 min51.61±28.78 min; Vc880.1±508.3 mL; CL189.6±53.8 mL·min-1; AUC0-90AUC0-∞分别为574.43±133.95 μg·min·mL-1599.34±132.00 μg·min·mL-1. 结论 静脉注射给药后,血浆中灯盏乙素浓度迅速下降.灯盏乙素在家犬体内消除较快,提示临床给药方法或给药间隔时间的确定、制剂开发的剂型选择都应该考虑其T1/2.

关键词: 灯盏乙素, 药动学, 反相高效液相色谱法

Abstract: Aim To establish an RP-HPLC method for the determination of scutellarin in plasma and study its pharmacokinetics in dogs. Methods Scutellarin was given to dogs by intravenous injection and determined by RP-HPLC, the mean plasma concentration-time curve was plotted and pharmacokinetic parameters were calculated by program 3p87. Results The concentration-time curve of scutellarin could be fitted to three-compartment model with T1/2pi, T1/2α and T1/2β being 1.05±0.80 min, 6.99±2.76 min and 51.61±28.78 min, respectively, Vc being 880.1±508.3 mL, CL being 189.6±53.8 mL·min-1, and AUC0-90 and AUC0-∞ being 574.43±133.95 μg·min·mL-1 and 599.34±132.00μg·min·mL-1, respectively. Conclusion The fact that the concentrations of scutellarin in plasma declined rapidly after the medication suggested that the T1/2 of scutellarin should be taken into account in drug administration and preparation development.

Key words: scutellarin, scutellarin, pharmacokinetics, pharmacokinetics, RP HPLC, RP HPLC

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Supporting: *Corresponding author. Tel.: 86-028-85501370