Evidence map›Paper›PMID 23023156›Full record

ArticleAnesthesiology2012

Mineralocorticoid receptor blocker eplerenone reduces pain behaviors in vivo and decreases excitability in small-diameter sensory neurons from local inflamed dorsal root ganglia in vitro.

Fei Dong, Wenrui Xie, Judith A Strong, Jun-Ming Zhang

Open access · bronzeAbstract read
In one paragraph

Article in Anesthesiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.9field-weighted citation impact, top 14% 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

25 citing papers in PubMed, 45 citations in OpenAlex.

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  16. Mineralocorticoids: the secret of muscle reflex dysfunction in hypertension?American journal of physiology. Heart and circulatory physiology · 2017
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Fei DongDepartment of Anesthesiology, Pain Research Center, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.
Wenrui Xie
Judith A Strong
Jun-Ming Zhang
Marymount University · US

Funding

STUDY OF ACTIVITY-DEPENDENT SYMPATHETIC SPROUTINGR01NS045594 · NINDS · UNIVERSITY OF CINCINNATI · PI ZHANG, JUN-MING · 2004 to 2025
$8.6M
NEURAL AND CHEMICAL BASIS OF PATHOLOGIC PAINR01NS055860 · NINDS · UNIVERSITY OF CINCINNATI · PI ZHANG, JUN-MING · 2008 to 2017
$3.7M
NINDS NIH HHS NS45594NINDS NIH HHS NS55860NINDS NIH HHS R01 NS045594NINDS NIH HHS R01 NS055860
6 · The paper itself

Abstract

backgroundInflammation of the dorsal root ganglia (DRG) may contribute to low back pain, postherpetic neuralgia, and neuropathic pain. The mineralocorticoid receptor (MR) plays a proinflammatory role in many nonrenal tissues, but its role in peripheral pain at the DRG level is not well studied.

methodsLocal inflammation of the L5 DRG with the immune activator zymosan rapidly leads to mechanical hypersensitivity and increased excitability of sensory neurons. Using this pain model, the authors applied the MR antagonist eplerenone locally to the inflamed DRG. Excitability of small-diameter sensory neurons was examined in acute primary culture by using patch clamp techniques.

resultsLocal eplerenone significantly reduced the mechanical hypersensitivity and shortened its duration. The same dose was ineffective systemically. Immunohistochemical studies showed the MR was present in most neurons and rapidly translocated to the nucleus 1 day after local DRG inflammation. Activation of satellite glia (defined by expression of glial fibrillary acidic protein) in the inflamed DRG was also reduced by local eplerenone. Increased excitability of small-diameter sensory neurons 1 day after inflammation could be observed in vitro. Eplerenone applied in vitro (8-12 h) could reverse this increased excitability. Eplerenone had no effect in neurons isolated from normal, uninflamed DRG. The MR agonist aldosterone (10 nM) applied in vitro increased excitability of neurons isolated from normal DRG.

conclusionsThe MR may have a pronociceptive role in the DRG. Some of its effects may be mediated by neuronal MR. The MR may represent a novel therapeutic target in some pain syndromes.

Indexed as

AnimalsBehavior, AnimalEplerenoneGanglia, SpinalInflammationMaleMineralocorticoid Receptor AntagonistsPainPain MeasurementPrimary Cell CultureRatsRats, Sprague-DawleySensory Receptor CellsSpironolactoneEplerenoneMineralocorticoid Receptor AntagonistsSpironolactone

Identifiers

PMID23023156
PMCPMC3482280
OpenAlexW2038818713

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.