Evidence map›Paper›PMID 20637262›Full record

ArticleNeuroscience letters2010

Spinal NADPH oxidase is a source of superoxide in the development of morphine-induced hyperalgesia and antinociceptive tolerance.

Tim Doyle, Leesa Bryant, Carolina Muscoli, Salvatore Cuzzocrea, Emanuela Esposito, Zhoumou Chen, Daniela Salvemini

Abstract read
In one paragraph

Article in Neuroscience letters, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
3.4field-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

30 citing papers in PubMed, 64 citations in OpenAlex.

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  12. Recent development in antihyperalgesic effect of phytochemicals: anti-inflammatory and neuro-modulatory actions.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2018
    Review
  13. Resveratrol alleviates inflammatory hyperalgesia by modulation of reactive oxygen species (ROS), antioxidant enzymes and ERK activation.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2017
    Article
  14. Therapeutic potential of NADPH oxidase 1/4 inhibitors.British journal of pharmacology · 2017
    Review
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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

7 authors at 3 institutions in 2 countries.

Tim DoyleDepartment of Pharmacological and Physiological Science, Saint Louis University School of Medicine, St. Louis, MO 63104, USA.
Leesa Bryant
Carolina Muscoli
Salvatore Cuzzocrea
Emanuela Esposito
Zhoumou Chen
Daniela Salvemini
Saint Louis University · USUniversity of Messina · ITIstituto di Ricovero e Cura a Carattere Scientifico San Raffaele

Funding

Role of peroxynitrite in morphine hyperalgesia and toleranceR01DA024074 · NIDA · SAINT LOUIS UNIVERSITY · PI SALVEMINI, DANIELA · 2008 to 2012
$1.7M
Targeting the relief of chronic pain with orally active peroxynitrite decompositiRC1AR058231 · NIAMS · SOUTHERN ILLINOIS UNIV AT EDWARDSVILLE · PI NEUMANN, WILLIAM, SALVEMINI, DANIELA · 2009 to 2010
$974k
Role of ceramide in morphine hyperalgesia and toleranceR21DA023056 · NIDA · SAINT LOUIS UNIVERSITY · PI SALVEMINI, DANIELA · 2008 to 2009
$392k
NIAMS NIH HHS 1RC1AR058231NIAMS NIH HHS RC1 AR058231NIDA NIH HHS R01 DA024074NIDA NIH HHS R21 DA023056
6 · The paper itself

Abstract

The role of superoxide and its active byproduct peroxynitrite as mediators of nociceptive signaling is emerging. We have recently reported that nitration and inactivation of spinal mitochondrial superoxide dismutase (MnSOD) provides a critical source of these reactive oxygen and nitrogen species during central sensitization associated with the development of morphine-induced hyperalgesia and antinociceptive tolerance. In this study, we demonstrate that activation of spinal NADPH oxidase is another critical source for superoxide generation. Indeed, the development of morphine-induced hyperalgesia and antinociceptive tolerance was associated with increased activation of NADPH oxidase and superoxide release. Co-administration of morphine with systemic delivery of two structurally unrelated NADPH oxidase inhibitors namely apocynin or diphenyleneiodonium (DPI), blocked NADPH oxidase activation and the development of hyperalgesia and antinociceptive tolerance at doses devoid of behavioral side effects. These results suggest that activation of spinal NADPH oxidase contributes to the development of morphine-induced hyperalgesia and antinociceptive tolerance. The role of spinal NADPH oxidase was confirmed by showing that intrathecal delivery of apocynin blocked these events. Our results are the first to implicate the contribution of NADPH oxidase as an enzymatic source of superoxide and thus peroxynitrite in the development of central sensitization associated with morphine-induced hyperalgesia and antinociceptive tolerance. These results continue to support the critical role of these reactive oxygen and nitrogen species in pain while advancing our knowledge of their biomolecular sources.

Indexed as

Analgesics, OpioidAnimalsDrug ToleranceHyperalgesiaMaleMiceMorphineNADPH OxidasesSpinal CordSuperoxidesAnalgesics, OpioidMorphineNADPH OxidasesSuperoxidesmorphine antinociceptive toleranceNADPH oxidaseperoxynitritesuperoxide

Identifiers

PMID20637262
PMCPMC2933278
OpenAlexW2093670658

What OpenQuestion holds

Textmetadata
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.