微乳对9-硝基喜树碱内酯结构的保护作用评价

来源 :武警医学院学报 | 被引量 : 0次 | 上传用户:fengliming33645
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【目的】考察自制得微乳制剂对9-硝基喜树碱(9-nitrocamptothecin,9-NC)内酯结构的保护作用。【方法】以9-NC溶液剂为对照,分别在25℃和37℃的条件下,pH7.4磷酸盐缓冲液介质,检测了微乳中的9-NC内酯结构的含量变化,体外考察9-NC自微乳化给药系统(SMEDDS)对9-NC内酯结构的保护作用。【结果】与溶液剂相比,两种微乳制剂9-NC SMEDDS-C/T中9-NC内酯结构水解速率常数显著减小,水解半衰期显著延长,具有统计学差异(P〈0.01)。【结论】SMEDDS对9-NC
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