节点文献
人参皂甙脂质体(GSL)的研制
Ginseng saponin liposome(GSL)
【摘要】 为增强人参皂甙在体内的靶向性以提高其抗癌疗效,同时提高其生物利用度,对人参皂甙脂质体(GSL)的制备进行了初步研究。采用薄膜分散法制备了68L并对其理化性质进行了考察。显微及电镜鉴别结果显示,所制得的GSL以复层脂质体为主,单层脂质体少数,碎片很少;采用标准品对照法测得其包封率为51.4%;用热差分析法测相变温度为70C;使用多功能图象仪测得粒径大多在0.7~1.2μm之间。研究结果表明,用所报道的薄膜分散法制备的GSL有较理想的包装率和较适宜的粒径范围,人参皂甙完全可能做成载药脂质体。这一结论对人参皂甙的进一步开发和利用,尤其是在人参皂甙对肿瘤的治疗方面将有十分重要的作用。
【Abstract】 There have been a number reports on Ginseng saponin and liposome but on Gisengsoponin liposome, Reports showed that entrapped drug increases thepasssge to ce11s and maydecrease the dosage of drug and metamorphosis reaction;Ginseng saponin can directly kill orreverse cancer cells,it acts on liver principally after entrapped drug is absorbed by reticuloendothelium and orgns such as liver and spleen。Prepared liposome , Ginseng saponin will improvethe thereapeutic effects。The GSL was prepared by film dispersion method and its physical andchemicaI nature was studied.The GSL prepared contained muItilamellar vesicles,The phase inversion temperature was 70C , the percentage of particle size 0.7~1.2 μm,and the entrapmentrate 51.4%。
【Key words】 film despersion method; Ginseng saponin liposome; entrapment rate; particle size;
- 【文献出处】 中国药学杂志 ,CHINESE PHARMACEUTICAL JOURNAL , 编辑部邮箱 ,1995年07期
- 【分类号】R944
- 【被引频次】59
- 【下载频次】254