Cited by 129Neuroscience and Neural EngineeringNeuroinflammation and Neurodegeneration MechanismsTraumatic Brain Injury and Neurovascular Disturbances

The Effect of Resveratrol on Neurodegeneration and Blood Brain Barrier Stability Surrounding Intracortical Microelectrodes

Potter, Kelsey A., Buck, Amy C., Self, Wade K., Callanan, Megan E., Sunil, Smrithi, Capadona, Jeffrey R.·2013·Biomaterials

Abstract

The current study seeks to elucidate a biological mechanism which may mediate neuroinflammation, and decreases in both blood-brain barrier stability and neuron viability at the intracortical microelectrode-tissue interface. Here, we have focused on the role of pro-inflammatory reactive oxygen species. Specifically, adult rats implanted within intracortical microelectrodes were systemically administered the anti-oxidant, resveratrol, both the day before and the day of surgery. Animals were sacrificed at two or four weeks post-implantation for histological analysis of the neuroinflammatory and neurodegenerative responses to the microelectrode. At two weeks post-implantation, we found animals treated with resveratrol demonstrated suppression of reactive oxygen species accumulation and blood-brain barrier instability, accompanied with increased density of neurons at the intracortical microelectrode-tissue interface. Four weeks post-implantation, animals treated with resveratrol exhibited indistinguishable levels of markers for reactive oxygen species and neuronal nuclei density in comparison to untreated control animals. However, of the neurons that remained, resveratrol treated animals were seen to display reductions in the density of degenerative neurons compared to control animals at both two and four weeks post-implantation. Initial mechanistic evaluation suggested the roles of both anti-oxidative enzymes and toll-like receptor 4 expression in facilitating microglia activation and the propagation of neurodegenerative inflammatory pathways. Collectively, our data suggests that short-term attenuation of reactive oxygen species accumulation and blood-brain barrier instability can result in prolonged improvements in neuronal viability around implanted intracortical microelectrodes, while also identifying potential therapeutic targets to reduce chronic intracortical microelectrode-mediated neurodegeneration.

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Crossref · 10.1016/j.biomaterials.2013.05.035

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Authors
Potter, K. A., Buck, A. C., Self, W. K., Callanan, M. E., Sunil, S., & Capadona, J. R.
Affiliations
  • Louis Stokes Cleveland VA Medical Center (US)
  • Case Western Reserve University (US)
Corresponding author
Capadona, Jeffrey R.
Venue
Biomaterials
Publisher
Elsevier BV
Published
2013-09
Volume
34
Issue
29
Pages
7001-7015
ISSN
0142-9612 (ISSN-L)
OpenAlex
W2072832306
Cited by
129
References
62
Citations by year
2026: 1 · 2025: 7 · 2024: 7 · 2023: 13 · 2022: 9 · 2021: 11 · 2020: 12 · 2019: 5 · 2018: 20 · 2017: 11 · 2016: 8 · 2015: 6 · 2014: 16 · 2013: 3
FWCI
5.39
Type
journal article
Language
en
Open access
closed
Locations
  • Biomaterials (publishedVersion)
  • PubMed (publishedVersion)
Funders
U.S. Department of Veterans Affairs (I01 RX001495)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neural Engineering
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Neurology › Traumatic Brain Injury and Neurovascular Disturbances
Keywords
resveratrol, intracortical microelectrodes, neurodegeneration, neuroinflammation, reactive oxygen species, oxidative stress, neuronal viability, microglial activation, TLR4, antioxidant enzymes, neurodegeneration prevention
MeSH terms
Resveratrol, Animals, Antioxidants, Blood-Brain Barrier, Electrodes, Implanted, Male, Microelectrodes, Neurons, Stilbenes, Reactive Oxygen Species, Rats

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