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

Autor: Rodrigues Júnior JM; Laboratory of Pharmaceutical Technology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil. jmrj@rdbiotec.com.br, de Melo Lima K, de Matos Jensen CE, de Aguiar MM, da Silva Cunha Júnior A
Jazyk: angličtina
Zdroj: Artificial organs [Artif Organs] 2003 May; Vol. 27 (5), pp. 492-7.
DOI: 10.1046/j.1525-1594.2003.07244.x
Abstrakt: 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 microm. 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.
Databáze: MEDLINE