Evidence map›Paper›PMID 19699278›Full record

ArticleNeuroscience2009

Changes in expression of sensory organ-specific microRNAs in rat dorsal root ganglia in association with mechanical hypersensitivity induced by spinal nerve ligation.

B T Aldrich, E P Frakes, J Kasuya, D L Hammond, T Kitamoto

Open access · greenAbstract read
In one paragraph

Article in Neuroscience, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 82 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
82citing papers in PubMed, 1 pooled it
3.1field-weighted citation impact, top 8% 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

82 citing papers in PubMed, 1 synthesis or guideline pooled it, 147 citations in OpenAlex.

  1. Pooled it
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  14. Non-coding RNAs in neuropathic pain.Neuronal signaling · 2020
    Review
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22 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

5 authors at 1 institution in 1 country.

B T AldrichDepartment of Anesthesia, University of Iowa, 51 Newton Road, Iowa City, IA 52242, USA.
E P Frakes
J Kasuya
D L Hammond
T Kitamoto
University of Iowa · US

Funding

Interdisciplinary Training Program in Pain ResearchT32NS045549 · NINDS · UNIVERSITY OF IOWA · PI KATHLEEN A SLUKA, Yuriy M Usachev · 2004 to 2026
$3.7M
Significance of microRNA-mediated gene regulation in chronic neuropathic painR21DA023005 · NIDA · UNIVERSITY OF IOWA · PI KITAMOTO, TOSHIHIRO · 2008 to 2009
$413k
Effects of Nerve Injury on GABA A Receptors in the DRGF31NS047883 · NINDS · UNIVERSITY OF IOWA · PI FRAKES, ELIJAH P · 2004 to 2006
$82k
Characterizing the Role of MicroRNAs in Chronic Neuropathic PainF32NS059197 · NINDS · UNIVERSITY OF IOWA · PI ALDRICH, BENJAMIN T · 2007 to 2008
$73k
NIDA NIH HHS R21 DA023005NINDS NIH HHS F31 NS047883NINDS NIH HHS F32 NS059197NINDS NIH HHS T32 NS045549
6 · The paper itself

Abstract

Chronic neuropathic pain caused by peripheral nerve injury is associated with global changes in gene expression in damaged neurons. To understand the molecular mechanisms underlying neuropathic pain, it is essential to elucidate how nerve injury alters gene expression and how the change contributes to the development and maintenance of chronic pain. MicroRNAs are non-protein-coding RNA molecules that regulate gene expression in a wide variety of biological processes mainly at the level of translation. This study investigated the possible involvement of microRNAs in gene regulation relevant to neuropathic pain. The analyses focused on a sensory organ-specific cluster of microRNAs that includes miR-96, -182, and -183. Quantitative real-time polymerase chain reaction (qPCR) analyses confirmed that these microRNAs were highly enriched in the dorsal root ganglion (DRG) of adult rats. Using the L5 spinal nerve ligation (SNL) model of chronic neuropathic pain, we observed a significant reduction in expression of these microRNAs in injured DRG neurons compared to controls. In situ hybridization and immunohistochemical analyses revealed that these microRNAs are expressed in both myelinated (N52 positive) and unmyelinated (IB4 positive) primary afferent neurons. They also revealed that the intracellular distributions of the microRNAs in DRG neurons were dramatically altered in animals with mechanical hypersensitivity. Whereas microRNAs were uniformly distributed within the DRG soma of non-allodynic animals, they were preferentially localized to the periphery of neurons in allodynic animals. The redistribution of microRNAs was associated with changes in the distribution of the stress granule (SG) protein, T-cell intracellular antigen 1 (TIA-1). These data demonstrate that SNL induces changes in expression levels and patterns of miR-96, -182, and -183, implying their possible contribution to chronic neuropathic pain through translational regulation of pain-relevant genes. Moreover, SGs were suggested to be assembled and associated with microRNAs after SNL, which may play a role in modification of microRNA-mediated gene regulation in DRG neurons.

Indexed as

AnimalsChronic DiseaseDisease Models, AnimalGanglia, SpinalIntracellular SpaceLigationMaleMicroRNAsNerve Fibers, MyelinatedNerve Fibers, UnmyelinatedNeuralgiaNeuronsNeurons, AfferentPhysical StimulationRatsRats, Sprague-DawleyMicroRNAsMIRN96 microRNA, rat

Identifiers

PMID19699278
PMCPMC2762008
OpenAlexW1968186617

What OpenQuestion holds

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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.