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[Tissue engineering of peripheral nerves].

N Sinis1, H-E Schaller, C Schulte-Eversum

  • 1Klinik für Hand-, Plastische, Rekonstruktive und Verbrennungschirurgie, BG-Unfallklinik, Eberhard-Karls-Universität Tübingen. nsinis@bgu-tuebingen.de

Handchirurgie, Mikrochirurgie, Plastische Chirurgie : Organ Der Deutschsprachigen Arbeitsgemeinschaft Fur Handchirurgie : Organ Der Deutschsprachigen Arbeitsgemeinschaft Fur Mikrochirurgie Der Peripheren Nerven Und Gefasse : Organ Der V
|January 16, 2007
PubMed
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Electron Doping of the Iron-Arsenide Superconductor CeFeAsO Controlled by Hydrostatic Pressure.

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Probing spin correlations using angle-resolved photoemission in a coupled metallic/Mott insulator system.

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Foundations for the Successful Establishment of a Multidisciplinary Orthoplastic Surgery Team.

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Cellular nerve guidance conduits seeded with Schwann cells promote peripheral nerve regeneration across 20 mm gaps, comparable to autologous grafts. Autologous grafts remain superior for 40 mm defects.

Area of Science:

  • Biomaterials Science
  • Regenerative Medicine
  • Neuroscience

Context:

  • Peripheral nerve injuries present significant reconstructive challenges.
  • Autologous nerve grafting, the traditional method, has limitations including donor-site morbidity and limited material availability.
  • Tubulization techniques using various conduits are emerging as alternatives.

Purpose:

  • To evaluate the efficacy of different nerve guidance conduits for peripheral nerve defect reconstruction.
  • To compare synthetic materials, cellular, and acellular tubes, and venous conduits in a rat median nerve model.
  • To assess the impact of Schwann cell incorporation on nerve regeneration.

Summary:

  • Nerve gaps up to 40 mm were created in a rat median nerve model.

Related Experiment Videos

  • Trifluoroethylene carbonate-epsilon-caprolactone, polyethylene, veins, and collagen tubes were tested.
  • Schwann cells were incorporated into some trifluoroethylene carbonate-epsilon-caprolactone tubes.
  • Regeneration across a 20 mm gap was achieved with cellular tubes containing syngenic Schwann cells, comparable to autologous grafts.
  • For 40 mm gaps, autologous grafts yielded the best results.

    • Impact:

    • Cellular nerve guidance conduits show promise for bridging critical-sized peripheral nerve gaps.
    • This research contributes to developing improved strategies for peripheral nerve repair.
    • Findings may guide the selection of biomaterials and cellular components for nerve regeneration therapies.