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      Scaffolds to promote spinal cord regeneration.

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          Abstract

          Substantial research effort in the spinal cord injury (SCI) field is directed towards reduction of secondary injury changes and enhancement of tissue sparing. However, pathway repair after complete transections, large lesions, or after chronic injury may require the implantation of some form of oriented bridging structure to restore tissue continuity across a trauma zone. These matrices or scaffolds should be biocompatible and create an environment that facilitates tissue growth and vascularization, and allow axons to regenerate through and beyond the implant in order to reconnect with "normal" tissue distal to the injury. The myelination of regrown axons is another important requirement. In this chapter, we describe recent advances in biomaterial technology designed to provide a terrain for regenerating axons to grow across the site of injury and/or create an environment for endogenous repair. Many different types of scaffold are under investigation; they can be biodegradable or nondegradable, natural or synthetic. Scaffolds can be designed to incorporate immobilized signaling molecules and/or used as devices for controlled release of therapeutic agents, including growth factors. These bridging structures can also be infiltrated with specific cell types deemed suitable for spinal cord repair.

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          Author and article information

          Journal
          Handb Clin Neurol
          Handbook of clinical neurology
          0072-9752
          0072-9752
          2012
          : 109
          Affiliations
          [1 ] Department of Biomedical Engineering, Washington University, St. Louis, MO, USA.
          Article
          B978-0-444-52137-8.00036-X
          10.1016/B978-0-444-52137-8.00036-X
          23098738
          d7a5671c-babb-41fc-87c1-804e04c61d62
          Copyright © 2012 Elsevier B.V. All rights reserved.
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