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Bioartificial pancreas. Present state and future prospects.

G Reach

    Biomedica Biochimica Acta
    |January 1, 1984
    PubMed
    Summary

    Bioartificial pancreas devices protect transplanted islets from immune rejection using specialized membranes. These membranes control the passage of glucose and insulin, but all systems are still under development.

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    Area of Science:

    • Biomedical Engineering
    • Immunology
    • Endocrinology

    Background:

    • The bioartificial pancreas aims to prevent immune rejection of transplanted islets of Langerhans in diabetic patients.
    • Effective membranes are crucial for separating transplanted tissue from the host's immune system.

    Purpose of the Study:

    • To survey different bioartificial pancreas systems based on their transport functions.
    • To evaluate membrane permeability for immunocytes, immunoglobulins, glucose, and insulin.

    Main Methods:

    • Review of diffusion systems.
    • Review of ultrafiltration systems.
    • Review of combined diffusion-ultrafiltration systems.

    Main Results:

    • Membranes must be impermeable to immune cells and antibodies.
    • Selective permeability for glucose and insulin is essential for device function.
    • Different transport systems (diffusion, ultrafiltration, combined) are being explored.

    Conclusions:

    • Bioartificial pancreas technology is still in its developmental stages.
    • Membrane transport properties are key to successful islet transplantation.
    • Further research is needed to optimize these hybrid pancreas systems.

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