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作 者:刘雅敏[1] 陈庆[1] 杨艳娇[1] 郭丹丹[1] 韩德恩[1] 崔梦丽
机构地区:[1]河南中医学院,郑州450046
出 处:《中国实验方剂学杂志》2016年第6期79-83,共5页Chinese Journal of Experimental Traditional Medical Formulae
基 金:河南省科技厅基础与前沿技术研究项目(112300410098)
摘 要:目的:大鼠灌胃给予热痹清片和制马钱子粉后,计算马钱子碱和士的宁的药动学参数,比较二者在血浆中的药动学特征变化。方法:采用UPLC-MS/MS测定大鼠血浆中马钱子碱和士的宁的含量。Agela Venusil ASB C18色谱柱(2.1mm×50 mm,3μm),流动相乙腈-0.15%甲酸溶液(60∶40),柱温35℃,流速0.1 m L·min-1,进样量5μL。以盐酸克伦特罗为内标,采用ESI+模式,多反应离子监测(MRM),定量分析的离子分别为马钱子碱m/z 395.22~243.97,士的宁m/z 335.14~183.96,盐酸克伦特罗m/z 277.11~202.87。样品处理采用液液萃取法。利用DAS 2.1软件计算药动学参数。结果:热痹清片和制马钱子粉中马钱子碱的达峰时间(tmax)分别为(27±11),(40±12)min,士的宁依次为(30±9),(42±14)min,马钱子碱的药峰浓度(Cmax)分别为(5.6±1.2),(4.5±1.7)μg·L-1,士的宁依次为(27.3±10.8),(15.9±7.0)μg·L-1,马钱子碱的药时曲线下面积(AUC0-t)分别为(922±96),(710±126)μg·min·L-1,士的宁依次为(3 957±651),(2 031±256)μg·min·L-1,马钱子碱的清除率/生物利用的(CL/F)分别为(4 596±306),(87±34)L·min-1·kg-1,士的宁依次为(880±84),(49±10)L·min-1·kg-1。结论:马钱子碱和士的宁在大鼠体内药动学行为均符合二房室模型。与制马钱子粉比较,热痹清片能显著提高生物利用度,使其有效成分吸收、消除加快。Objective: To calculate pharmacokinetic parameters of brucine and strychnine in rats after oral administration of Rebiqing tablets and Strychni Semen Pulveratum, and compare their pharmacokinetic characteristics in plasma. Method: UPLC-MS / MS was employed to determine contents of brucine and strychnine in rat plasma with Agela Venusil ASB C18column( 2. 1 mm × 50 mm,3 μm),taking acetonitrile-0. 15% formic acid( 60 ∶ 40) as mobile phase at 0. 1 m L·min- 1. Column temperature was 35 ℃. Internal standard was clenbuterol hydrochloride, UPLC-MS / MS was performed with electrospray ionization( ESI) and operated in positive mode in multiple reaction monitoring( MRM). Reaction selected ions were m / z 395. 22-243. 97 for brucine, m / z 335. 14-183. 96 for strychnine and m / z 277. 11-202. 87 for internal standard. Samples were extracted from rat plasma by liquid-liquid extraction. Pharmacokinetic parameters were calculated by DAS 2. 1software. Result: Main pharmacokinetic parameters of brucine in Rebiqing tablets and Strychni Semen Pulveratum were as follows: tmaxof( 27 ± 11),( 40 ± 12) min,Cmaxof( 5. 6 ± 1. 2),( 4. 5 ± 1. 7) μg·L- 1,AUC0-tof( 922 ± 96),( 710 ± 126) μg·min·L- 1,CL/F of( 4 596 ± 306),( 87 ± 34) L·min- 1·kg- 1; parameters of strychnine in them were( 30 ± 9),( 42 ± 14) min,( 27. 3 ± 10. 8),( 15. 9 ± 7. 0) μg·L- 1,( 3 957 ± 651),( 2 031 ± 256) μg·min·L- 1and( 880 ± 84),( 49 ± 10) L·min- 1·kg- 1, respectively. Conclusion:Pharmacokinetic behavior of brucine and strychnine are well fitted to two-compartment model in rats. Compared with Strychni Semen Pulveratum, Rebiqing tablets can significantly improve oral bioavailability, accelerate absorption and elimination rate of brucine and strychnine.
关 键 词:热痹清片 马钱子碱 士的宁 盐酸克伦特罗 UPLC-MS/MS
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