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左旋多巴甲酯在PLGA微球的稳定性研究
引用本文:徐健雄,郭秋圆,黄袭雯,李晓鸣,杨晓茗,陈伟. 左旋多巴甲酯在PLGA微球的稳定性研究[J]. 生物磁学, 2013, 0(24): 4605-4607
作者姓名:徐健雄  郭秋圆  黄袭雯  李晓鸣  杨晓茗  陈伟
作者单位:上海交通大学医学院附属新华医院神经内科,上海200240
基金项目:国家自然科学基金项目(81173001);上海科委纳米专项(11nm0503300)
摘    要:目的:考察左旋多巴甲酯在PLGA微球中的稳定性并探讨其稳定方法。方法:利用HPLC的方法考察了左旋多巴甲酯在不同pH值和光照的环境中和微球里的稳定性。结果:左旋多巴甲酯在pH3中稳定,在微球中也可以稳定一周。结论:包封左旋多巴甲酯在PLGA微球中,是一种有效地保护了左旋多巴甲酯在微球中的活性,可以实现长效缓释,是一种可行的方案。

关 键 词:左旋多巴甲酯  稳定性  微球

Stability of Levodopa Methyl Ester-loaded PLGA Microspheres
XU Jian-xiong,GUO Qiu-yuan,HUANG Xi-wen,LI Xiao-ming,YANG Xiao-ming,CHEN Wei. Stability of Levodopa Methyl Ester-loaded PLGA Microspheres[J]. Biomagnetism, 2013, 0(24): 4605-4607
Authors:XU Jian-xiong  GUO Qiu-yuan  HUANG Xi-wen  LI Xiao-ming  YANG Xiao-ming  CHEN Wei
Affiliation:(Department of Neurology, Xinhua Hospital afSliated to Shanghai Jiao Tong University School of Medl"cine, Shanghai, 200240, China)
Abstract:Objective: To develop an effective method and analysis of stability levodopa methyl ester. Methods: Stability of levodopa methyl ester in different pH, illumination and in PLGA microspheres were analyzed by HPLC method. Results: Levodopa methyl ester can be stabilized at pH 3 and in PLGA microspheres for 1 week. Conclusion: The preparation of PLGA microspheres of levodopa methyl ester through the encapsulation method can protect the bioactivity of the levodopa methyl ester in the microspheres. This method is an effective technique for levodopa methyl ester sustained release.
Keywords:Levodopa methyl ester  Stability  Microsphere
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