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Erschienen in: Journal of Polymer Research 9/2022

01.09.2022 | Original Paper

Multilayer nanostructured system for oral insulin delivery

verfasst von: Kristina V. Apryatina, Irina A. Glazova, Alexander S. Koryagin, Sergey D. Zaitsev, Larisa A. Smirnova

Erschienen in: Journal of Polymer Research | Ausgabe 9/2022

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Abstract

A method to obtain a multilayer insulin-containing composition in a nanostructured form consisting of layers: gold-chitosan-insulin-chitosan nanoparticles was developed. The size of the fully formed multicomponent system was 178 nm.The outer layer of chitosan protects insulin from the damaging effects of low pH-medium and proteolytic enzymes of the gastrointestinal tract when the composition is taken orally. Chitosan simultaneously performs a transport function to deliver insulin into the bloodstream. In experiments on experimental animals with artificially induced type 1 diabetes, it was found that the effectiveness and duration of hypoglycemic action of the composition depends on the amount of insulin in the dose. The composition containing 50 IU of insulin per dose provides a rapid decrease glucose level in the blood and maintains it at the level of the intact group for 3 h. After 6 h the efficacy of the composition is comparable to that of insulin injection. A fundamentally important indicator of the effectiveness of the composition is a constant content of glycated hemoglobin in the blood within 10 days.

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Metadaten
Titel
Multilayer nanostructured system for oral insulin delivery
verfasst von
Kristina V. Apryatina
Irina A. Glazova
Alexander S. Koryagin
Sergey D. Zaitsev
Larisa A. Smirnova
Publikationsdatum
01.09.2022
Verlag
Springer Netherlands
Erschienen in
Journal of Polymer Research / Ausgabe 9/2022
Print ISSN: 1022-9760
Elektronische ISSN: 1572-8935
DOI
https://doi.org/10.1007/s10965-022-03225-w

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