Evidence map›Paper›PMID 28051277›Full record

ArticleCroatian medical journal2016

The role of P2X3 receptors in bilateral masseter muscle allodynia in rats.

Petra Tariba Knežević, Robert Vukman, Robert Antonić, Zoran Kovač, Ivone Uhač, Sunčana Simonić-Kocijan

Open access · diamondAbstract read
In one paragraph

Article in Croatian medical journal, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
2.4field-weighted citation impact, top 12% 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

8 citing papers in PubMed, 16 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. PJournal of pain research · 2020
    Article
  5. Article
  6. Article
  7. Peripheral Mechanisms of Ischemic Myalgia.Frontiers in cellular neuroscience · 2017
    Review
  8. Article
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

6 authors at 1 institution in 1 country.

Petra Tariba KneževićPetra Tariba Knežević, Department of Prosthodontics, University of Rijeka School of Dental Medicine and School of Medicine, Kreąimirova 40, 51000 Rijeka, Croatia, petra.tariba@uniri.hr.
Robert Vukman
Robert Antonić
Zoran Kovač
Ivone Uhač
Sunčana Simonić-Kocijan
University of Rijeka · HR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo determine the relationship between bilateral allodynia induced by masseter inflammation and P2X3 receptor expression changes in trigeminal ganglia (TRG) and the influence of intramasseteric P2X3 antagonist administration on bilateral masseter allodynia.

methodsTo induce bilateral allodynia, rats received a unilateral injection of complete Freund's adjuvant (CFA) into the masseter muscle. Bilateral head withdrawal threshold (HWT) was measured 4 days later. Behavioral measurements were followed by bilateral masseter muscle and TRG dissection. Masseter tissue was evaluated histopathologically and TRG tissue was analyzed for P2X3 receptor mRNA expression by using quantitative real-time polymerase chain reaction (PCR) analysis. To assess the P2X3 receptor involvement in nocifensive behavior, two doses (6 and 60 μg/50 μL) of selective P2X3 antagonist A-317491 were administrated into the inflamed masseter muscle 4 days after the CFA injection. Bilateral HWT was measured at 15-, 30-, 60-, and 120-minute time points.

resultsHWT was bilaterally reduced after the CFA injection (P<0.001). Intramasseteric inflammation was confirmed ipsilaterally to the CFA injection. Quantitative real-time PCR analysis demonstrated enhanced P2X3 expression in TRG ipsilaterally to CFA administration (P<0.01). In comparison with controls, the dose of 6 μg of A-317491 significantly increased bilateral HWT at 15-, 30-, and 60-minute time points after the A-317491 administration (P<0.001), whereas the dose of 60 μg of A-317491 was efficient at all time points ipsilaterally (P=0.004) and at 15-, 30-, and 60-minute time points contralaterally (P<0.001).

conclusionUnilateral masseter inflammation can induce bilateral allodynia in rats. The study provided evidence that P2X3 receptors can functionally influence masseter muscle allodynia and suggested that P2X3 receptors expressed in TRG neurons are involved in masseter inflammatory pain conditions.

Indexed as

AnimalsDose-Response Relationship, DrugFreund's AdjuvantHyperalgesiaInflammationMaleMasseter MuscleNeuronsPainPhenolsPolycyclic CompoundsRatsRats, WistarReceptors, Purinergic P2X3Trigeminal GanglionA-317491Freund's AdjuvantPhenolsPolycyclic CompoundsReceptors, Purinergic P2X3

Identifiers

PMID28051277
PMCPMC5209933
OpenAlexW2576300190

What OpenQuestion holds

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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.