Evidence map›Paper›PMID 19361551›Full record

ArticleBrain, behavior, and immunity2009

Stress exacerbates neuropathic pain via glucocorticoid and NMDA receptor activation.

Jessica K Alexander, A Courtney DeVries, Kristina A Kigerl, Jason M Dahlman, Phillip G Popovich

Abstract read
In one paragraph

Article in Brain, behavior, and immunity, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed
4.4field-weighted citation impact, top 5% 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

66 citing papers in PubMed, 134 citations in OpenAlex.

  1. Glucocorticoid-endocannabinoid crosstalk in the ventrolateral periaqueductal gray (vlPAG) promotes pain resolution.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
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  17. Neuroimmune Interactions in Pain and Stress: An Interdisciplinary Approach.The Neuroscientist : a review journal bringing neurobiology, neurology and psychiatry · 2021
    Review
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6 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 2 institutions in 1 country.

Jessica K AlexanderNeuroscience Graduate Studies Program, The Ohio State University, Columbus, OH 43210, USA.
A Courtney DeVries
Kristina A Kigerl
Jason M Dahlman
Phillip G Popovich
The Ohio State University · USInstitute for Behavioral Medicine · US

Funding

MACROPHAGE HETEROGENEITY AFTER SPINAL CORD INJURYR01NS037846 · NINDS · OHIO STATE UNIVERSITY · PI POPOVICH, PHILLIP G · 1999 to 2008
$2.7M
Psychosocial Influences on NociceptionR01NR010806 · NINR · OHIO STATE UNIVERSITY · PI DEVRIES, ANNE COURTNEY · 2008 to 2012
$1.8M
NINDS NIH HHS NS 37846NINDS NIH HHS R01 NS037846NINR NIH HHS 1R01 NR 010806NINR NIH HHS R01 NR010806
6 · The paper itself

Abstract

There is growing recognition that psychological stress influences pain. Hormones that comprise the physiological response to stress (e.g., corticosterone; CORT) may interact with effectors of neuropathic pain. To test this hypothesis, mice received a spared nerve injury (SNI) after exposure to 60 min restraint stress. In stressed mice, allodynia was consistently increased. The mechanism(s) underlying the exacerbated pain response involves CORT acting via glucocorticoid receptors (GRs); RU486, a GR antagonist, prevented the stress-induced increase in allodynia whereas exogenous administration of CORT to non-stressed mice reproduced the allodynic response caused by stress. Since nerve injury-induced microglial activation has been implicated in the onset and propagation of neuropathic pain, we evaluated cellular and molecular indices of microglial activation in the context of stress. Activation of dorsal horn microglia was accelerated by stress; however, this effect was transient and was not associated with the onset or maintenance of a pro-inflammatory phenotype. Stress-enhanced allodynia was associated with increased dorsal horn extracellular signal-regulated kinase phosphorylation (pERK). ERK activation could indicate a stress-mediated increase in glutamatergic signaling, therefore mice were treated prior to SNI and stress with memantine, an N-methyl-D-aspartate receptor (NMDAR) antagonist. Memantine prevented stress-induced enhancement of allodynia after SNI. These data suggest that the hormonal responses elicited by stress exacerbate neuropathic pain through enhanced central sensitization. Moreover, drugs that inhibit glucocorticoids (GCs) and/or NMDAR signaling could ameliorate pain syndromes caused by stress.

Indexed as

AnimalsCorticosteroneExtracellular Signal-Regulated MAP KinasesFemaleMiceMice, Inbred C57BLMifepristonePainPain MeasurementPeripheral Nervous System DiseasesPhosphorylationPosterior Horn CellsReceptors, GlucocorticoidReceptors, N-Methyl-D-AspartateRestraint, PhysicalReverse Transcriptase Polymerase Chain ReactionCorticosteroneExtracellular Signal-Regulated MAP KinasesMifepristoneReceptors, GlucocorticoidReceptors, N-Methyl-D-Aspartate

Identifiers

PMID19361551
PMCPMC2735409
OpenAlexW2082819853

What OpenQuestion holds

Textmetadata
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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.