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顺铂白芨胶微球在犬体内的药动学 被引量:9

Pharmacokinetics of cisplatin in cisplatin bletilla hyacinthine gum microspheres in dogs
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摘要 目的:研究顺铂白芨胶微球肝动脉灌注后体内药动学过程,判别其体内靶向性和缓释性能,为其临床治疗提供科学依据。方法:犬麻醉后经股动脉穿刺引入5F单弯血管造影导管,透视下插至肝动脉分别灌注顺铂白芨胶微球和顺铂注射液,不同时间点采血,通过原子吸收光谱法检测血药浓度,通过DAS2.0药动学计算软件计算顺铂不同剂型在犬体内的药动学参数。结果:白芨胶微球中的顺铂和顺铂注射液在犬体内的药动学模型为二室模型,其中顺铂注射液药动学参数:t1/2α(2.3±0.9)h,t1/2β(75.1±2.0)h,AUC(0-t)(49.2±1.8)mg·h·L-1,AUC(0-∞)(64.3±3.8)mg·h·L-1,MRT(0-t)(58.0±1.9)h,MRT(0-∞)(120.7±10.2)h,Cmax(1.72±0.17)mg·L-1,tmax(0.057±0.098)h;顺铂白芨胶微球的顺铂药动学参数:t1/2α(11.5±4.3)h,t1/2β(143.2±42.4)h,AUC(0-t)(31.2±1.5)mg·h·L-1,AUC(0-∞)(47.4±6.0)mg·h·L-1,MRT(0-t)(62.1±1.7)h,MRT(0-∞)(152.4±48.2)h,Cmax(0.77±0.05)mg·L-1,tmax(1.30±0.27)h。结论:顺铂白芨胶微球在体内栓塞治疗的同时,通过其被动靶向作用在肝组织缓慢释放药物,降低其在外周血液和组织的药物浓度,长时间提高其在病灶部位的有效浓度,达到提高临床治疗效果,减少其不良反应的目的。 OBJECFIVE To study pharmacokinetics of cisplatin to evaluate their targeting and sustained properties following CS-BHG-MSs transcatheter hepaticarterial embolization. METHODS CS-BHG-MSs was put into hepatic arteries of dog through femoral arteriy puncture using 5F single-curved catheter under angiography, The plasma concentration of cisplatin at different time was determined by atomic absortion. DAS2.0 was used to calculate the pharmacokinetic parameters of cisplatin in different dosage form in dog. RESULTS The concentration-time courses following CS-BHG-MSs transcatheter hepaticarterial embolization conformed to two-compartment model. The pharmacokinetic parameters of cisplatin in different dosage form in dogs were shown as follows., t1/2 a (2. 2 ±0.9) h, t1/2 β ( 75. 1±2.0) h, AUC(0-t) (49. 2±1.8) mg·h·L^-1 , AUC(0-∞) (64. 3 ±3.8) mg·h·L^-1 ,MRT(0-t) (58.0±1.9)h,MRT(0-∞) ( 120.7± 10.2)h,Cmax ( 1.72 ± 0. 17)mg·L^-1 , tmax (0. 057±0. 098)h for cisplatin inj ection, and t1/2a ( 11.5 ± 4. 3) h, t1/2β ( 143.2 ± 42.4) h, AUC(0-t) (31.2 ± 1.5 ) mg·h·L^-1. AUC(0-∞) ( 47. 4 ± 6. 0) mg·h·L^-1, MRT(0-t) (62. 1 ± 1.7) h, MRT(0-∞) ( 152. 4± 48.2) h, Cmax (0.77 ± 0. 05) mg·L^-1, tmax ( 1. 30 ±0. 27) h for CS-BHG-MSs, which indicated CS-BHG-MSs had good sustained property in vivo. CONCLUSION Not only could CS-BHG-MSs exert in vivo embolization treatment on tumor,but also had the passive target to the tumor by inventional method,and sustained release in tumor aera to enhance the concentration of anticancer drug in tumor long time,and to reduce the concentration of anticancer in peripheral blood, which would enhance clinic therapeutic efficacy and reduce the side effect on whole body.
出处 《中国医院药学杂志》 CAS CSCD 北大核心 2008年第6期425-428,共4页 Chinese Journal of Hospital Pharmacy
基金 国家自然科学基金资助项目(编号:39770839)
关键词 顺铂 白芨胶微球 栓塞 肝动脉 药动学 eisplatin bletilla hyaeinthine gum mierospheres embolization hepatic artery pharmaeokinetics
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