Evidence map›Paper›PMID 27045367›Full record

ArticlePloS one2016

Naringenin Inhibits Superoxide Anion-Induced Inflammatory Pain: Role of Oxidative Stress, Cytokines, Nrf-2 and the NO-cGMP-PKG-KATP Channel Signaling Pathway.

Marília F Manchope, Cássia Calixto-Campos, Letícia Coelho-Silva, Ana C Zarpelon, Felipe A Pinho-Ribeiro, Sandra R Georgetti, Marcela M Baracat, Rúbia Casagrande, Waldiceu A Verri

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 80 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
80citing papers in PubMed, 3 pooled it
8.2field-weighted citation impact, top 2% 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

80 citing papers in PubMed, 3 syntheses or guidelines pooled it, 143 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Review
  6. Article
  7. Journal of inflammation research · 2026
    Article
  8. Article
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  12. Article
  13. Review
  14. Targeting L-arginine/NO/cGMP/KFrontiers in pharmacology · 2025
    Review
  15. Article
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  17. Article
  18. Article
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20 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

9 authors at 1 institution in 1 country.

Marília F ManchopeDepartamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Brazil.
Cássia Calixto-CamposDepartamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Brazil.
Letícia Coelho-SilvaDepartamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Brazil.
Ana C ZarpelonDepartamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Brazil.
Felipe A Pinho-RibeiroDepartamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Brazil.
Sandra R GeorgettiDepartamento de Ciências Farmacêuticas, Centro de Ciências de Saúde, Universidade Estadual de Londrina, Londrina, Brazil.
Marcela M BaracatDepartamento de Ciências Farmacêuticas, Centro de Ciências de Saúde, Universidade Estadual de Londrina, Londrina, Brazil.
Rúbia CasagrandeDepartamento de Ciências Farmacêuticas, Centro de Ciências de Saúde, Universidade Estadual de Londrina, Londrina, Brazil.
Waldiceu A VerriDepartamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Brazil.
Universidade Estadual de Londrina · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In the present study, the effect and mechanism of action of the flavonoid naringenin were evaluated in superoxide anion donor (KO2)-induced inflammatory pain in mice. Naringenin reduced KO2-induced overt-pain like behavior, mechanical hyperalgesia, and thermal hyperalgesia. The analgesic effect of naringenin depended on the activation of the NO-cGMP-PKG-ATP-sensitive potassium channel (KATP) signaling pathway. Naringenin also reduced KO2-induced neutrophil recruitment (myeloperoxidase activity), tissue oxidative stress, and cytokine production. Furthermore, naringenin downregulated KO2-induced mRNA expression of gp91phox, cyclooxygenase (COX)-2, and preproendothelin-1. Besides, naringenin upregulated KO2-reduced nuclear factor (erythroid-derived 2)-like 2 (Nrf2) mRNA expression coupled with enhanced heme oxygenase (HO-1) mRNA expression. In conclusion, the present study demonstrates that the use of naringenin represents a potential therapeutic approach reducing superoxide anion-driven inflammatory pain. The antinociceptive, anti-inflammatory and antioxidant effects are mediated via activation of the NO-cGMP-PKG-KATP channel signaling involving the induction of Nrf2/HO-1 pathway.

Indexed as

Oxidative StressSignal TransductionAnimalsBehavior, AnimalCyclic GMPCyclic GMP-Dependent Protein KinasesCytokinesFlavanonesInflammationMaleMiceNF-E2-Related Factor 2Nitric OxidePainPotassium ChannelsSuperoxidesCyclic GMPCyclic GMP-Dependent Protein KinasesCytokinesFlavanonesmitochondrial K(ATP) channelnaringeninNfe2l2 protein, mouseNF-E2-Related Factor 2Nitric OxidePotassium ChannelsSuperoxides

Identifiers

PMID27045367
PMCPMC4821586
OpenAlexW2313162806

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.