Wireless bioresorbable electronic system enables sustained nonpharmacological neuroregenerative therapy

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Peripheral nerve injuries represent a significant problem in public health, constituting 2-5% of all trauma cases(1). For severe nerve injuries, even advanced forms of clinical intervention often lead to incomplete and unsatisfactory motor and/or sensory function(2). Numerous studies report the potential of pharmacological approaches (for example, growth factors, immunosuppressants) to accelerate and enhance nerve regeneration in rodent models(3-10). 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 recovery(11,12), 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 benefits(13). 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.
Publisher
NATURE PUBLISHING GROUP
Issue Date
2018-12
Language
English
Article Type
Article
Citation

NATURE MEDICINE, v.24, no.12, pp.1830 - +

ISSN
1078-8956
DOI
10.1038/s41591-018-0196-2
URI
http://hdl.handle.net/10203/248697
Appears in Collection
BiS-Journal Papers(저널논문)MS-Journal Papers(저널논문)
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