Evidence map›Paper›PMID 25562527›Full record

ArticleExperimental neurology2015

Mitochondria-associated microRNAs in rat hippocampus following traumatic brain injury.

Wang-Xia Wang, Nishant P Visavadiya, Jignesh D Pandya, Peter T Nelson, Patrick G Sullivan, Joe E Springer

Open access · greenAbstract read
In one paragraph

Article in Experimental neurology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 95 papers.

0numbers the graph read from it
0cells of the map it votes in
95citing papers in PubMed
5.4field-weighted citation impact, top 3% 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

95 citing papers in PubMed, 136 citations in OpenAlex.

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  5. The roles of subcellular Argonaute 2 in cardiovascular diseases.Journal of translational internal medicine · 2025
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35 more citing papers are in PubMed but not listed here.

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

6 authors at 1 institution in 1 country.

Wang-Xia WangSanders-Brown Center on Aging, University of Kentucky, Lexington, KY 40536, USA; Department of Pathology, University of Kentucky, Lexington, KY 40536, USA. Electronic address: wwangc@email.uky.edu.
Nishant P VisavadiyaPhysical Medicine and Rehabilitation, University of Kentucky, Lexington, KY 40536, USA; Spinal Cord and Brain Injury Research Center, University of Kentucky, Lexington, KY 40536, USA.
Jignesh D PandyaSpinal Cord and Brain Injury Research Center, University of Kentucky, Lexington, KY 40536, USA; Anatomy and Neurobiology, University of Kentucky, Lexington, KY 40536, USA.
Peter T NelsonSanders-Brown Center on Aging, University of Kentucky, Lexington, KY 40536, USA; Department of Pathology, University of Kentucky, Lexington, KY 40536, USA.
Patrick G SullivanSpinal Cord and Brain Injury Research Center, University of Kentucky, Lexington, KY 40536, USA; Anatomy and Neurobiology, University of Kentucky, Lexington, KY 40536, USA.
Joe E SpringerPhysical Medicine and Rehabilitation, University of Kentucky, Lexington, KY 40536, USA; Spinal Cord and Brain Injury Research Center, University of Kentucky, Lexington, KY 40536, USA; Anatomy and Neurobiology, University of Kentucky, Lexington, KY 40536, USA. Electronic address: jspring@uky.edu.
University of Kentucky · US

Funding

University of Kentucky Alzheimer's Disease Core Center - Biomarker CoreP30AG028383 · NIA · UNIVERSITY OF KENTUCKY · PI GOLD, BRIAN TIMOTHY, VAN ELDIK, LINDA J · 2006 to 2020
$23.3M
Kentucky Center for Clinical and Translational ScienceUL1TR000117 · NCATS · UNIVERSITY OF KENTUCKY · PI KERN, PHILIP A · 2012 to 2015
$13.3M
Modulation of microRNA pathways by gemfibrozil in predementia Alzheimer diseaseR01AG042419 · NIA · UNIVERSITY OF KENTUCKY · PI JICHA, GREGORY A, NELSON, PETER T. · 2013 to 2016
$1.6M
Sexually dimorphic miR-497 regulates alpha-synuclein and alpha-synucleinopathyR21NS085830 · NINDS · UNIVERSITY OF KENTUCKY · PI NELSON, PETER T. · 2013 to 2014
$411k
NCATS NIH HHS UL1 TR000117NIA NIH HHS AG042419NIA NIH HHS P30 AG028383NIA NIH HHS R01 AG042419NINDS NIH HHS NS085830NINDS NIH HHS R21 NS085830
6 · The paper itself

Abstract

Traumatic brain injury (TBI) is a major cause of death and disability. However, the molecular events contributing to the pathogenesis are not well understood. Mitochondria serve as the powerhouse of cells, respond to cellular demands and stressors, and play an essential role in cell signaling, differentiation, and survival. There is clear evidence of compromised mitochondrial function following TBI; however, the underlying mechanisms and consequences are not clear. MicroRNAs (miRNAs) are small non-coding RNA molecules that regulate gene expression post-transcriptionally, and function as important mediators of neuronal development, synaptic plasticity, and neurodegeneration. Several miRNAs show altered expression following TBI; however, the relevance of mitochondria in these pathways is unknown. Here, we present evidence supporting the association of miRNA with hippocampal mitochondria, as well as changes in mitochondria-associated miRNA expression following a controlled cortical impact (CCI) injury in rats. Specifically, we found that the miRNA processing proteins Argonaute (AGO) and Dicer are present in mitochondria fractions from uninjured rat hippocampus, and immunoprecipitation of AGO associated miRNA from mitochondria suggests the presence of functional RNA-induced silencing complexes. Interestingly, RT-qPCR miRNA array studies revealed that a subset of miRNA is enriched in mitochondria relative to cytoplasm. At 12h following CCI, several miRNAs are significantly altered in hippocampal mitochondria and cytoplasm. In addition, levels of miR-155 and miR-223, both of which play a role in inflammatory processes, are significantly elevated in both cytoplasm and mitochondria. We propose that mitochondria-associated miRNAs may play an important role in regulating the response to TBI.

Indexed as

AnimalsBrain InjuriesCells, CulturedCytoplasmHippocampusMaleMicroRNAsMitochondriaRatsRats, Sprague-DawleyMicroRNAsControlled cortical impactHippocampusInflammationMicroRNAMiR-142-3pMiR-142-5pMiR-146aMiR-150MiR-155MiR-223MitochondriaTraumatic brain injury

Identifiers

PMID25562527
PMCPMC4346439
OpenAlexW1993252596

What OpenQuestion holds

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LicenceTDM
Read underepoch 390

Registered trials

None linked

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.