Evidence map›Paper›PMID 21864980›Full record

ArticlePain2011

Early-life stress produces muscle hyperalgesia and nociceptor sensitization in the adult rat.

Paul G Green, Xiaojie Chen, Pedro Alvarez, Luiz F Ferrari, Jon D Levine

Open access · greenAbstract read
In one paragraph

Article in Pain, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed
3.0field-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

56 citing papers in PubMed, 112 citations in OpenAlex.

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  16. Nociceptor Overexpression of NaThe journal of pain · 2021
    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

5 authors at 1 institution in 1 country.

Paul G GreenDepartment of Oral and Maxillofacial Surgery, University of California San Francisco, San Francisco, CA 94143, USA Department of Medicine, University of California San Francisco, San Francisco, CA 94143, USA.
Xiaojie Chen
Pedro Alvarez
Luiz F Ferrari
Jon D Levine
University of California, San Francisco · US

Funding

Receptors and Second Messengers for Pain and AnalgesiaP01NS053709 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI LEVINE, JON DAVID · 2007 to 2011
$5.0M
Role of Subdiaphragmatic Vagus in Fibromyalgia SyndromeR01AR048821 · NIAMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI LEVINE, JON DAVID · 2004 to 2013
$2.8M
Mechanisms of Interactions of Alcohol Abuse HIV NeuropathogenesisR01AA017384 · NIAAA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI LEVINE, JON DAVID · 2008 to 2012
$1.7M
Mechanisms and Risk Factors in Musculoskeletal PainR01AR054635 · NIAMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI LEVINE, JON DAVID · 2007 to 2011
$1.6M
SYNOVIAL NOCICEPTORS IN EXPERIMENTAL ARTHRITISR01AR032634 · NIAMS · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI LEVINE, JON DAVID · 1986 to 2004
$1.2M
NIAAA NIH HHS R01 AA017384NIAMS NIH HHS AR054635NIAMS NIH HHS R01 AR032634NIAMS NIH HHS R01 AR048821NIAMS NIH HHS R01 AR054635NINDS NIH HHS P01 NS053709
6 · The paper itself

Abstract

Chronic pain in adults has been associated with early-life stress. To examine the pronociceptive effect of early-life stress, we evaluated cutaneous and muscle nociception and activity in muscle nociceptors in an animal model of neonatal stress, limited bedding, in the rat. In this neonatal limited bedding (NLB) model, litters are exposed to limited bedding between postnatal days 2 and 9, and controls to standard bedding. In adult NLB-treated rats, mechanical nociceptive threshold in skeletal muscle was significantly lower (~22%) than in controls. Furthermore, administration of prostaglandin E(2) in skin as well as muscle produced markedly prolonged hyperalgesia, an effect prevented by spinal intrathecal injection of oligodeoxynucleotide antisense to protein kinase Cε (PKCε), a second messenger in nociceptors that has been implicated in the induction and maintenance of chronic pain. In electrophysiological studies, mechanical threshold of muscle nociceptors was reduced by ~31% and conduction velocity significantly increased (~28%). These findings indicate that neonatal stress induces a persistent hyperalgesia and nociceptor sensitization manifest in the adult and that the second messenger PKCε may be a target against which therapies might be directed to treat a chronic pain syndrome that is associated with early-life traumatic stress.

Indexed as

Age FactorsAnimalsAnimals, NewbornDisease Models, AnimalFemaleHyperalgesiaNociceptorsPregnancyRatsRats, Sprague-DawleyStress, Physiological

Identifiers

PMID21864980
PMCPMC3199316
OpenAlexW1971982994

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.