Abstract
AbstractNerve transection requires surgical intervention to restore function. The standard of care involves coaptation when a tension-free repair is achievable, or interposition of a graft or conduit when a gap remains. Despite advances, nerve gap injury is associated with unsatisfactory recovery. This study investigates the use of a decellularized, porcine nerve-derived hydrogel filler (peripheral nerve matrix, PNM) for conduits in an 8 mm rat sciatic nerve gap model. The decellularized tissue maintained multiple nerve-specific matrix components and nerve growth factors. This decellularized tissue was used to formulate hydrogels, which were deployed into conduits for nerve gap repair. Nerve recovery was assessed up to 24 weeks post injury by gait analysis, electrophysiology, and axon counting. Deployment of PNM within conduits was shown to improve electrophysiologic response and axon counts compared with those of empty conduit controls. These results indicate that PNM has potential benefits when used as a filler for conduits in nerve gap injuries.
Funder
Wallace Coulter TPII Program in the Department of Bioengineering at the University of Pittsburgh and the Clinical and Translational Science Institute at the University of Pittsburgh
U.S. Department of Health & Human Services | NIH | National Institute of Biomedical Imaging and Bioengineering
NIBIB T-32 Biomechanics in Regenerative Medicine (BiRM)
Publisher
Springer Science and Business Media LLC
Subject
Cell Biology,Developmental Biology,Biomedical Engineering,Medicine (miscellaneous)
Reference45 articles.
1. DiMaggio, C. et al. Traumatic injury in the United States: in-patient epidemiology 2000–2011. Injury 47, 1393–1403 (2016).
2. Carter, J. T., Pisquiy, J. J., Polmear, M., Khalifa, R. & Gonzalez, G. A new classification of iatrogenic peripheral nerve injuries. Biol. Med. 12, 464 (2020).
3. Omling, E. et al. Population-based incidence rate of inpatient and outpatient surgical procedures in a high-income country. Br. J. Surg. 105, 86–95 (2017).
4. Fox, I. K. & Mackinnon, S. E. Adult peripheral nerve disorders: nerve entrapment, repair, transfer, and brachial plexus disorders. Plast. Reconstr. Surg. 127, 105e–118e (2011).
5. Ciaramitaro, P. et al. Italian network for traumatic, traumatic peripheral nerve injuries: epidemiological findings, neuropathic pain and quality of life in 158 patients. J. Peripher. Nerv. Syst. 15, 120–127 (2010).
Cited by
31 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献