Evidence map›Paper›PMID 34945296›Full record

ArticleMicromachines2021

Investigation of the Feasibility of Ventricular Delivery of Resveratrol to the Microelectrode Tissue Interface.

Youjoung Kim, Evon S Ereifej, William E Schwartzman, Seth M Meade, Keying Chen, Jacob Rayyan, He Feng, Varoon Aluri, Natalie N Mueller, Raman Bhambra and 3 more

Open access · goldAbstract read
In one paragraph

Article in Micromachines, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
0.7field-weighted citation impact, top 35% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 14 citations in OpenAlex.

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  7. Effects of Micromachining on Anti-oxidant Elution from a Mechanically-Adaptive Polymer.Journal of micromechanics and microengineering : structures, devices, and systems · 2024
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors at 3 institutions in 1 country.

Youjoung KimDepartment of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA.ORCID 0000-0002-1373-0913
Evon S EreifejDepartment of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA.
William E SchwartzmanDepartment of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA.
Seth M MeadeDepartment of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA.
Keying ChenDepartment of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA.
Jacob RayyanDepartment of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA.
He FengDepartment of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA.
Varoon AluriDepartment of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA.ORCID 0000-0002-6249-9682
Natalie N MuellerDepartment of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA.
Raman BhambraDepartment of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA.
Sahaj BhambraDepartment of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA.
Dawn M TaylorDepartment of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA.
Jeffrey R CapadonaDepartment of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA.
Louis Stokes Cleveland VA Medical Center · USCleveland Clinic Lerner College of Medicine · USUniversity of Michigan · US

Funding

National Institute for Biomedical Imaging and Bioengineering T32EB004314NINDS NIH HHS GRANT12635723United States Department of Veterans Affairs GRANT12418820United States Department of Veterans Affairs GRANT12635707United States Department of Veterans Affairs GRANT12647351United States Department of Veterans Affairs RX002628-01A1
6 · The paper itself

Abstract

(1) Background: Intracortical microelectrodes (IMEs) are essential to basic brain research and clinical brain-machine interfacing applications. However, the foreign body response to IMEs results in chronic inflammation and an increase in levels of reactive oxygen and nitrogen species (ROS/RNS). The current study builds on our previous work, by testing a new delivery method of a promising antioxidant as a means of extending intracortical microelectrodes performance. While resveratrol has shown efficacy in improving tissue response, chronic delivery has proven difficult because of its low solubility in water and low bioavailability due to extensive first pass metabolism. (2) Methods: Investigation of an intraventricular delivery of resveratrol in rats was performed herein to circumvent bioavailability hurdles of resveratrol delivery to the brain. (3) Results: Intraventricular delivery of resveratrol in rats delivered resveratrol to the electrode interface. However, intraventricular delivery did not have a significant impact on electrophysiological recordings over the six-week study. Histological findings indicated that rats receiving intraventricular delivery of resveratrol had a decrease of oxidative stress, yet other biomarkers of inflammation were found to be not significantly different from control groups. However, investigation of the bioavailability of resveratrol indicated a decrease in resveratrol accumulation in the brain with time coupled with inconsistent drug elution from the cannulas. Further inspection showed that there may be tissue or cellular debris clogging the cannulas, resulting in variable elution, which may have impacted the results of the study. (4) Conclusions: These results indicate that the intraventricular delivery approach described herein needs further optimization, or may not be well suited for this application.

Indexed as

antioxidantforeign body responseintracortical microelectrodeneuralneural recordingventricular drug delivery

Identifiers

PMID34945296
PMCPMC8708660
OpenAlexW3215773128

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.