The effect of cyclodextrins on the in vitro and in vivo properties of insulin-loaded poly (D,L-lactic-co-glycolic acid) microspheres

被引:0
|
作者
Rodrigues, JM
Lima, KD
Jensen, CED
de Aguiar, MMG
Cunha, AD
机构
[1] Univ Sao Paulo, Fac Med Ribeirao Preto, Dept Biochem & Immunol, BR-14049900 Ribeirao Preto, Brazil
[2] Univ Fed Minas Gerais, Pharmaceut Technol Lab, Belo Horizonte, MG, Brazil
关键词
insulin; diabetes; cyclodextrins; microspheres; pulmonary administration; powder inhalation;
D O I
暂无
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
In this work we describe the development and characterization of a new formulation of insulin (INS). Insulin was complexed with cyclodextrins (CD) in order to improve its solubility and stability being available as a dry powder, after encapsulation into poly (D,L-lactic-co-glycolic acid) (PLGA) microspheres. The complex INS : CD was encapsulated into microspheres in order to obtain particles with an average diameter between 2 and 6 mum. This system was able to induce significant reduction of the plasma glucose level in two rodent models, normal mice and diabetic rats, after intratracheal administration.
引用
收藏
页码:492 / 497
页数:6
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