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Oral insulin delivery: how far are we?
Pedro Fonte1, Francisca Araújo, Salette Reis
1Centro de Investigação em Ciências da Saúde (CICS), Instituto Superior de Ciências da Saúde-Norte, CESPU, Gandra, Portugal.
Journal of Diabetes Science and Technology
|April 10, 2013
Summary
Oral insulin delivery offers advantages for diabetes patients, but absorption challenges persist. Nanoparticle encapsulation shows promise for improving oral insulin bioavailability and patient compliance.
Area of Science:
- Pharmaceutical Science
- Biotechnology
- Diabetes Research
Background:
- Subcutaneous insulin injections are standard for diabetes management but have drawbacks like poor patient compliance and adverse effects.
- Oral insulin delivery promises improved quality of life, better hepatic insulinization, and reduced side effects compared to injections.
- Significant challenges exist in oral insulin delivery, primarily due to gastrointestinal degradation and poor intestinal absorption.
Purpose of the Study:
- To review various strategies for oral insulin delivery, focusing on nanoparticulate systems.
- To discuss the potential of nanoparticles in enhancing insulin transport across the intestinal barrier.
- To examine the progress, safety, and future prospects of oral insulin delivery systems.
Main Methods:
- Review of existing literature on oral insulin delivery systems.
- Focus on nanoparticulate carrier systems for enhanced insulin bioavailability.
- Analysis of strategies promoting paracellular or transcellular insulin transport.
Main Results:
- Nanoparticle encapsulation is a promising strategy to overcome barriers to oral insulin absorption.
- Nanoparticles can facilitate insulin transport across the intestinal mucosa.
- Several delivery systems are under development, with pharmaceutical companies actively pursuing market entry.
Conclusions:
- Nanoparticulate systems offer a viable approach to improve oral insulin bioavailability.
- Successful oral insulin delivery could revolutionize diabetes treatment and patient care.
- Further research into safety, efficacy, and large-scale production is crucial for clinical translation.
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