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中国临床药理学与治疗学 ›› 2006, Vol. 11 ›› Issue (3): 328-331.

• 研究原著 • 上一篇    下一篇

不同量羧甲基壳聚糖修饰紫杉醇脂质体对大鼠体内药动学的影响

仝新勇, 周建平, 谭燕, 林文垚   

  1. 中国药科大学药剂教研室,南京 210009,江苏
  • 收稿日期:2005-11-30 修回日期:2006-02-14 出版日期:2006-03-26 发布日期:2020-12-04
  • 通讯作者: 周建平,男,教授,博士生导师,研究方向:药物新型给药系统。Tel:025-83271272 E-mail:zhoujianp60@163.com
  • 作者简介:仝新勇,男,博士研究生,研究方向:药物新型给药系统。Tel:025-83271272 E-mail:olivert1031@hotmail.com

Effect of different quantities of carboxymethyl chitosan modification to pharmacokinetic performance of paclitaxel liposome in rats

TONG Xin-yong, ZHOU Jian-ping, TAN Yan, LIN Wen-yao   

  1. Department of Pharmaceutics,China Pharmaceutical University,Nanjing 210009,Jiangsu,China
  • Received:2005-11-30 Revised:2006-02-14 Online:2006-03-26 Published:2020-12-04

摘要: 目的 考察不同量羧甲基壳聚糖(CMCT)修饰紫杉醇脂质体后对大鼠体内药动学行为的影响。方法 大鼠尾静脉注射未修饰紫杉醇脂质体,0.1%CMCT修饰紫杉醇脂质体及0.2%CMCT修饰紫杉醇脂质体,血浆处理以炔诺酮为内标,叔丁基甲醚提取。检测波长227nm,甲醇-水65∶35为流动相,ODS-C18柱进行分析。结果 未修饰紫杉醇脂质体,0.1%CMCT修饰紫杉醇脂质体及0.2%CMCT修饰紫杉醇脂质体血浓经时曲线均符合二室模型,t1/2β分别为11.2、15.6、30.6h,AUC0-1440分别为2541.99、2748.78、3451.64mg·L-1·min。结论 羧甲基壳聚糖修饰后紫杉醇脂质体的大鼠体内药动学行为有明显的改变,消除半衰期和血中的循环时间均有不同程度的延长,AUC增加,且与其用量有一定的相关性。

关键词: 紫杉醇, 脂质体, 羧甲基壳聚糖, 长循环作用, 体内药动学

Abstract: AIM: To study the effect of different quantities of carboxymethyl chitosan (CMCT)modification to the pharmacokinetic performance of PTX-LPin rats.METHODS: Plasma was extracted with tert-butyl methyl ether and Norethisterone was employed as internal standard after i.v.unmodified PTX-LP,0.1%CMCT modified PTX-LPand 0.2%CMCT modified PTX-LPin rats.Plasma samples were analyzed on a C18 column at 227 nm and the mobile phase was methanol and water (65∶35,v/v).RESULTS: The plasma concentration-time profile in rats after iv.unmodified PTX-LP,0.1%CMCT modified PTX-LPand 0.2% CMCT modified PTX-LPfollow bi-exponential disposition.T1/2β are 11.20,15.55 and 30.6 h respectively,AUC were 2541.99,2748.78 and 3451.64 mg·L-1·min for each of them.CONCLUSION: Significant changes of in vivo pharmacokinetic performance have been found after CMCT modification to PTX-LPin rats by comparison with unmodified LP.T1/2βand circulation time in plasma have been lengthened and AUC has been improved in some extent.We found that this kind of long circulating action had some correlation with the quantities of CMCT employed.

Key words: paclitaxel, liposome, carboxymethyl chitosan, long circulating action, pharmacokinetics

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