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作 者:林建阳[1,2] 刘杨[1] 陈晓辉[1] 毕开顺[1]
机构地区:[1]沈阳药科大学药学院,辽宁沈阳110016 [2]中国医科大学附属第一医院,辽宁沈阳110011
出 处:《沈阳药科大学学报》2009年第3期234-237,248,共5页Journal of Shenyang Pharmaceutical University
基 金:辽宁省“十一五”教育科学规划立项课题(46-25)
摘 要:目的研究大鼠分别以60、120、240 mg.kg-1剂量灌胃给予I类新药RT-A后,其活性代谢产物RT-B的药动学。方法采用RP-HPLC法测定RT-B在大鼠体内的血药浓度,用DASS2.0药物动力学程序求算其药动学参数。结果主要药动学参数为:tmax分别为(18.000±0.000)、(18.000±1.265)、(18.000±0.000)h,ρmax分别为(3.270±0.563)、(5.772±1.287)、(8.525±1.173)mg.L-1,AUC(0→t)分别为(69.881±11.561)、(107.913±16.591)、(165.181±21.411)mg.h.L-1,AUC(0→∞)分别为(71.843±12.454)、(109.894±15.278)、(173.847±24.602)mg.h.L-1,t1/2分别为(10.276±1.797)、(9.641±1.961)、(11.210±2.985)h。结论RT-B在大鼠体内呈二室模型分布,药时曲线呈现双峰,药时曲线下面积与给药剂量呈线性正相关。Objective To study pharmacokinetic characteristic of the active metabolite 3,4,5-tri (2-carboxy- methoxy) -stilbene ( RT-B ) after intragastric administration of a new compound 3,4,5-tri ( 2-ethoxycarbonyle thoxy) stilbene (RT-A) at different doses of 60,120, and 240 mg. kg - 1. Methods The reversed-phase high- performance liquid chromatography was applied to monitor the plasma concentration of RT-B. The pharmacokinetic parameters were estimated by the DASS2.0 computer program. Results The main pharmarcokinetic parameters of RT-B were as follows: tmax were ( 18. 000 ±0. 000), ( 18. 000 ± 1. 265 ) and ( 18. 000± 0.000 ) h ;ρmax were(3. 270± 0.563 ), (5. 772±1. 287 ) and (8. 525± 1. 173 )mg. L-1 ; AUC(0→t)were (69. 881±11.561), (107.913 ± 16. 591) and( 165. 181 ±21. 411 ) mg·h·L-1 ; AUC(0→∞) were(71. 843 ±12.454), ( 109. 894 ± 15. 278 ) and ( 173. 847± 24. 602) mg. h. L -1 ; t1/2 were ( 10.276±1. 797 ), ( 9.641 ± 1.961 ) and ( 11. 210 ±2.985 ) h ,respectively. Conclusions The time-concentration curve of RT-B is corresponded to the two-compartment model. Two peaks are shown in mean plasma concentration-time profile. The AUC of RT- B is linear up with the increasing of the RT-A dose by intragastric administration.
关 键 词:活性代谢产物 RT—B 药动学 I类新药RT—A
分 类 号:R917.1[医药卫生—药物分析学] R969.1[医药卫生—药学]
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