Evidence map›Paper›PMID 21952000›Full record

ArticleMolecular pain2011

Involvement of peripheral ionotropic glutamate receptors in orofacial thermal hyperalgesia in rats.

Kuniya Honda, Noboru Noma, Masamichi Shinoda, Makiko Miyamoto, Ayano Katagiri, Daiju Kita, Ming-Gang Liu, Barry J Sessle, Masafumi Yasuda, Koichi Iwata

Open access · goldAbstract read
In one paragraph

Article in Molecular pain, 2011. 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
1.0field-weighted citation impact, top 23% 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, 24 citations in OpenAlex.

  1. Article
  2. Inhibitory action of citronellol on the substantia gelatinosa neurons of the trigeminal subnucleus caudalis in juvenile mice.The Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology · 2025
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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

10 authors at 3 institutions in 2 countries.

Kuniya HondaDepartment of Physiology, Nihon University School of Dentistry, Chiyoda-ku, Tokyo, Japan.
Noboru Noma
Masamichi Shinoda
Makiko Miyamoto
Ayano Katagiri
Daiju Kita
Ming-Gang Liu
Barry J Sessle
Masafumi Yasuda
Koichi Iwata
Nihon University · JPTokyo Medical and Dental University · JPUniversity of Toronto · CA

Funding

PERIPHERAL NMDA RECEPTORS AND TMD PAIN MECHANISMSR01DE015420 · NIDCR · UNIVERSITY OF TORONTO · PI SESSLE, BARRY J. · 2003 to 2006
$1.2M
NIDCR NIH HHS DE015420
6 · The paper itself

Abstract

backgroundThe purpose of the present study was to elucidate the mechanisms that may underlie the sensitization of trigeminal spinal subnucleus caudalis (Vc) and upper cervical spinal cord (C1-C2) neurons to heat or cold stimulation of the orofacial region following glutamate (Glu) injection.

resultsGlu application to the tongue or whisker pad skin caused an enhancement of head-withdrawal reflex and extracellular signal-regulated kinase (ERK) phosphorylation in Vc-C2 neurons. Head-withdrawal reflex and ERK phosphorylation were also enhanced following cold stimulation of the tongue but not whisker pad skin in Glu-injected rats, and the head-withdrawal reflex and ERK phosphorylation were enhanced following heat stimulation of the tongue or whisker pad skin. The enhanced head-withdrawal reflex and ERK phosphorylation after heat stimulation of the tongue or whisker pad skin, and those following cold stimulation of the tongue but not whisker pad skin were suppressed following ionotropic glutamate receptor antagonists administration into the tongue or whisker pad skin. Furthermore, intrathecal administration of MEK1/2 inhibitor PD98059 caused significant suppression of enhanced head-withdrawal reflex in Glu-injected rats, heat head-withdrawal reflex in the rats with Glu injection into the tongue or whisker pad skin and cold head-withdrawal reflex in the rats with Glu injection into the tongue.

conclusionsThe present findings suggest that peripheral Glu receptor mechanisms may contribute to cold hyperalgesia in the tongue but not in the facial skin, and also contribute to heat hyperalgesia in the tongue and facial skin, and that the mitogen-activated protein kinase cascade in Vc-C2 neurons may be involved in these Glu-evoked hyperalgesic effects.

Indexed as

6-Cyano-7-nitroquinoxaline-2,3-dioneAnimalsFaceFlavonoidsHyperalgesiaMaleMAP Kinase Kinase 1MAP Kinase Kinase 2PhosphorylationRatsRats, Sprague-DawleyReceptors, Ionotropic GlutamateValine2-(2-amino-3-methoxyphenyl)-4H-1-benzopyran-4-one2-amino-5-phosphopentanoic acid6-Cyano-7-nitroquinoxaline-2,3-dioneFlavonoidsMAP Kinase Kinase 1MAP Kinase Kinase 2Receptors, Ionotropic GlutamateValine

Identifiers

PMID21952000
PMCPMC3216263
OpenAlexW2106023613

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.