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Related Experiment Videos

Oral insulin--a perspective.

N K Kavitha Raj1, Chandra P Sharma

  • 1Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala-695 012, India.

Journal of Biomaterials Applications
|March 5, 2003
PubMed
Summary
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Oral insulin delivery shows promise for diabetes management. Biologically adhesive nanoparticles, like alginate, protect insulin in the stomach and enhance gastrointestinal absorption.

Area of Science:

  • Biomaterials Science
  • Pharmaceutical Technology
  • Endocrinology

Background:

  • Diabetes mellitus management typically involves oral medications or insulin injections, with daily insulin doses being standard practice.
  • Oral insulin presents a promising, albeit experimental, approach for achieving stringent glycemic control in diabetic patients.
  • Conventional drug delivery systems face limitations, whereas biologically adhesive systems offer enhanced therapeutic advantages.

Purpose of the Study:

  • To explore the potential of alginate-based nanoparticles for oral insulin delivery.
  • To investigate the properties of alginate as a matrix for protein and cell encapsulation and delivery.
  • To evaluate the feasibility of using engineered polymer microspheres for enhanced gastrointestinal absorption of insulin.

Main Methods:

Related Experiment Videos

  • Development of engineered polymer microspheres with strong adhesive properties for gastrointestinal mucus and cellular lining.
  • Utilizing alginate, a natural polymer from seaweed, to create nanoparticles for insulin delivery.
  • Encapsulation of insulin within alginate matrices, leveraging properties like mild processing and controllable porosity.

Main Results:

  • Alginate nanoparticles are being developed to protect insulin from degradation in the stomach.
  • Engineered microspheres demonstrate the ability to traverse the mucosal epithelium and Peyer's patches.
  • Alginate's properties, including a stable internal environment and controllable porosity, facilitate macromolecule diffusion.

Conclusions:

  • Alginate nanoparticles offer a viable strategy for oral insulin delivery, protecting the therapeutic agent in the gastrointestinal tract.
  • Biologically adhesive delivery systems, such as those utilizing alginate, show potential for improving insulin absorption and glycemic control.
  • The unique properties of alginate make it a versatile matrix for the entrapment and controlled release of insulin and other therapeutic proteins.