摘要
以淀粉和乙酰水杨酰氯为原料,合成了淀粉支载的阿司匹林高分子前药,用核磁共振谱对其进行结构表征,用紫外分光光度计测定阿司匹林的接入率,并在人工胃液和人工肠液中进行体外释放研究.结果表明,阿司匹林成功接入到淀粉分子上,该复合物在不同介质的体外释放中均呈现零级缓慢释药且释药的开始阶段无爆释现象出现,与阿司匹林相比较,其作用时间明显增长,有望显著减轻药物对胃粘膜和肠的刺激作用.
In order to obtain a sustained-release aspirin derivative, starch-aspirin conjugation was synthesized by coupling between starch and aeetoxybenzoyl chloride. Its structure was characterized with 1H-NMR. The drug-loading ratio of product was measured by ultraviolet spectrophotometer. And in vitro drug release investigation was carried out in artificial gastric juice and artificial intesti- nal juice. The results clearly showed that aspirin was coupled with the starch molecule successfully and the drug release rate of the conjugatation wss nearly zero order without abrupt release. Compared with aspirin, the effective therapeutic time of the polymer pro- drug was prolonged. So it may lead to less side-effect and relieving stimulation on gastrointestinal tract.
出处
《福建农林大学学报（自然科学版）》
CSCD
北大核心
2014年第1期71-74,共4页
Journal of Fujian Agriculture and Forestry University:Natural Science Edition
基金
江西省科技支撑项目(20112BBF60023)
教育部高校博士点专项基金(20113603120006)
江西省教育厅项目(GJJ12254)
江西农业大学海外人才引进科研启动基金(0900368)
江西农业大学自然科学基金(QN201101)
关键词
复合物
接入率
体外释放
前药
conjugation
drug-loading ratio
in vitro release
prodrug
