TY - JOUR AU - Mumuni, M.A. AU - Calister, U.E. AU - Aminu, N. AU - Franklin, K.C. AU - Oluseun, A.M. AU - Usman, M. AU - Abdulmumuni, B. AU - James, O.Y. AU - Ofokansi, K.C. AU - Anthony, A.A. AU - Ibezim, E.C. AU - Díaz, D.D. T1 - Mucin-Grafted polyethylene glycol microparticles enable oral insulin delivery for improving diabetic treatment LA - eng PY - 2020 T2 - Applied Sciences (Switzerland) SN - 2076-3417 VL - 10 IS - 8 PB - MDPI AG AB - In this study, different ratios of mucin-grafted polyethylene-glycol-based microparticles were prepared and evaluated both in vitro and in vivo as carriers for the oral delivery of insulin. Characterization measurements showed that the insulin-loaded microparticles display irregular porosity and shape. The encapsulation effciency and loading capacity of insulin were >82% and 18%, respectively. The release of insulin varied between 68% and 92% depending on the microparticle formulation. In particular, orally administered insulin-loaded microparticles resulted in a significant fall of blood glucose levels, as compared to insulin solution. Subcutaneous administration showed a faster, albeit not sustained, glucose fall within a short time as compared to the polymeric microparticle-based formulations. These results indicate the possible oral delivery of insulin using this combination of polymers. DO - 10.3390/APP10082649 UR - https://portalciencia.ull.es/documentos/5ee23fb22999521d819e493c DP - Dialnet - Portal de la Investigación ER -