酪蛋白纳米胶束的构建及其对药物稳定性的影响
2021-04-16丁霁陈沅芷唐泽岩王韬
丁霁 陈沅芷 唐泽岩 王韬



【摘 要】在目前,越来越多的天然活性小分子成为了临床治疗冠心病的候选药物。然而这些天然药物大多在水中难溶解,不稳定,这使得它们在临床上的应用遭受到了巨大的限制。本项目主要探究的是:酪蛋白纳米胶束的包藏对药物丹参酮的稳态的影响。首先,我们利用酪蛋白的自组装功能,将丹参酮(tanshinone)包藏于酪蛋白中形成纳米胶束。在包封完成后,分别测量丹参酮-NaC复合物的包封率、表征、绘制紫外可见吸收光谱及抗菌活性研究。最后得出结论:丹参酮-NaC纳米胶束复合物的构建显著提高了丹参酮的稳定性,为将来药物研究提供了新的方法和思路。
【关键词】酪蛋白;丹参酮;纳米胶束;药物稳态;抑菌活性
Abstract:At present, more and more natural active small molecules have become the candidate drugs for clinical treatment of coronary heart disease. However, most of these natural drugs are insoluble and unstable in water, which limits their clinical application greatly. This project mainly explores the effects of casein nanomicelle encapsulation on tanshinone homeostasis. First, we used the self-assembly function of casein to encapsulate Tanshinone in casein to form nano-micelles. After the completion of encapsulation, the encapsulation rate and solubility of tanshinone-NAC complex were measured, and antibacterial activities were characterized and mapped. Finally, the conclusion was drawn that the construction of tanshinone -NaC nano-micellar complex significantly improved the stability of Tanshinone and provided new methods and ideas for future drug research.
Keywords: Casein; tanshinone; Micelle; Drug Stability; Bacteriostatic activity
1.绪论
1.1引文
冠状动脉粥样硬化性心脏病是冠状动脉血管发生动脉粥样硬化病变而引起血管腔狭窄或阻塞,造成心肌缺血、缺氧或坏死而导致的心脏病,常常被称为“冠心病”。冠心病主要是由于冠状动脉出现多样硬化引起的,它是一种终身性疾病,血管中的斑块一旦形成,很难彻底的消除,我们只能够通过长期用药稳定病情。然而,持续服用目前治疗冠心病的药物会对肝、肾等器官产生明显的危害,甚至还会引起头疼、呕吐的情况;但是一旦停止药物,也将会引发非常严重的后果。
相比传统的治疗冠心病的药物,越来越多的天然生物活性分子因其低毒性,被认为是作为治疗冠心病的长期服用药物,最有希望的候选者。……
