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咖啡酸在大鼠体内的药动学研究
引用本文:苏美英,周婷婷,周茂金.咖啡酸在大鼠体内的药动学研究[J].中国药房,2008,19(16):1220-1222.
作者姓名:苏美英  周婷婷  周茂金
作者单位:苏美英 (山东泰安市中心医院,泰安市,271000); 周婷婷 (山东泰安市中心医院,泰安市,271000); 周茂金 (山东泰安市中心医院,泰安市,271000);
摘    要:目的:建立测定大鼠血浆中咖啡酸浓度的高效液相色谱法,并用于药动学研究。方法:测定大鼠灌胃与静脉注射给药后咖啡酸的血药浓度,采用药动学程序Topfit 2·0进行统计处理,计算非室模型药动学参数。结果:大鼠灌胃给药后咖啡酸的主要药动学参数Cmax为(0·56±0·12)μg·mL-1,tmax为(0·18±0·04)h,t1/2为(0·67±0·12)h,ke为(1·05±0·20)h-1,AUC(0~t)为(0·34±0·05)μg·h·mL-1;大鼠静脉注射给药后t1/2为(0·45±0·05)h,ke为(1·55±0·18)h-1,AUC(0~t)为(9·07±2·24)μg·h·mL-1。结论:大鼠灌胃给予咖啡酸后,吸收迅速,消除半衰期较短,其绝对生物利用度较低。

关 键 词:咖啡酸  高效液相色谱法  灌胃  静脉注射  绝对生物利用度  药动学参数

Pharmacokinetics of Caffeic Acid in Rats
SU Mei-ying,ZHOU Ting-ting,ZHOU Mao-jin.Pharmacokinetics of Caffeic Acid in Rats[J].China Pharmacy,2008,19(16):1220-1222.
Authors:SU Mei-ying  ZHOU Ting-ting  ZHOU Mao-jin
Institution:(Shandong Taian Municipal Central Hospital, Taian 271000, China)
Abstract:OBJECTIVE: To establish a HPLC method for the determination of serum concentration of caffeic acid in rats and which was applied to the pharmacokinetic study of caffeic acid. METHODS: The concentrations of caffeic acid in rats were determined after intragastric (ig) administration or intravenous (iv) administration of 50 mg · kg ^-1 caffeic acid and the pharmacokinetic parameters of caffeic acid analyzed by Topfit 2.0. RESULTS: The main pharmacokinetic parameters of caffeic acid after ig administration of caffeic acid were as follows: Cmax: (0.56±0.12)μg·mL^-1; tmax: (0.18±0.04)h; t1/2: (0.67±0.12) h; ke: (1.05±0.20) h^-1; AUC(0-t): (0.34±0.05) μg · h · mL^-1. The main pharmacokinetic parameters of caffeic acid via iv administration were as follows: t1/2: (0.45±0.05) h; ke: (1.55±0.18) h ^-1; AUC(0-t): (9.07±2.24) μg ·h · mL^-1. CONCLUSION: Administered intragastrically, caffeic acid was characterized by rapid absorption, short elimination half life (t 1/2) and low absolute bioavailability in rats.
Keywords:Caffeic acid  HPLC  Intragastric administration  Intravenous injection  Absolute bioavailability  Pharmcokinetic parameters
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