Abstract
Peripheral nerve injuries represent a significant problem in public health, constituting 2–5% of all trauma cases1. For severe nerve injuries, even advanced forms of clinical intervention often lead to incomplete and unsatisfactory motor and/or sensory function2. Numerous studies report the potential of pharmacological approaches (for example, growth factors, immunosuppressants) to accelerate and enhance nerve regeneration in rodent models3–10. Unfortunately, few have had a positive impact in clinical practice. Direct intraoperative electrical stimulation of injured nerve tissue proximal to the site of repair has been demonstrated to enhance and accelerate functional recovery11,12, suggesting a novel nonpharmacological, bioelectric form of therapy that could complement existing surgical approaches. A significant limitation of this technique is that existing protocols are constrained to intraoperative use and limited therapeutic benefits13. Herein we introduce (i) a platform for wireless, programmable electrical peripheral nerve stimulation, built with a collection of circuit elements and substrates that are entirely bioresorbable and biocompatible, and (ii) the first reported demonstration of enhanced neuroregeneration and functional recovery in rodent models as a result of multiple episodes of electrical stimulation of injured nervous tissue.
Original language | English (US) |
---|---|
Pages (from-to) | 1830-1836 |
Number of pages | 7 |
Journal | Nature Medicine |
Volume | 24 |
Issue number | 12 |
DOIs | |
State | Published - Dec 1 2018 |
Funding
S.-K.K. is supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (NRF-2018R1C1B5043901). H.M.L. is supported by a grant from NRF funded by the Korean government (MEST) (2011-0028612). Z.X. acknowledges support from the National Natural Science Foundation of China (grant no.11402134). Y.H. acknowledges support from National Science Foundation (grant nos. 1400169, 1534120, and 1635443). J.A.R. acknowledges support from DARPA and from the Center for Bio-Integrated Electronics at Northwestern University. We thank S. J. Robinson (Beckman Institute, University of Illinois at Urbana-Champaign) and K. Doty (Department of Comparative Biosciences Histology Service Laboratory, University of Illinois at Urbana-Champaign) for histology staining and images that greatly improved the manuscript.
ASJC Scopus subject areas
- General Biochemistry, Genetics and Molecular Biology