Evidence map›Paper›PMID 19058915›Full record

ArticlePain2009

Regulation of the trigeminal NR1 subunit expression induced by inflammation of the temporomandibular joint region in rats.

Shuxing Wang, Grewo Lim, Ji Mao, Backil Sung, Jianren Mao

Abstract read
In one paragraph

Article in Pain, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.4field-weighted citation impact, top 22% 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

19 citing papers in PubMed, 32 citations in OpenAlex.

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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 2 institutions in 1 country.

Shuxing WangMGH Center for Translational Pain Research, Department of Anesthesia and Critical Care, Massachusetts General Hospital, Harvard Medical School, WACC 324, Boston, MA 02114, USA.
Grewo Lim
Ji Mao
Backil Sung
Jianren Mao
Harvard University · USMassachusetts General Hospital · US

Funding

Translational Research on Prescription Drug AbuseP20DA026002 · NIDA · MASSACHUSETTS GENERAL HOSPITAL · PI MAO, JIANREN · 2008 to 2011
$3.8M
COMORBIDITY BETWEEN DEPRESSION AND OROFACIAL PAINR01DE018538 · NIDCR · MASSACHUSETTS GENERAL HOSPITAL · PI MAO, JIANREN · 2007 to 2011
$2.0M
Central Mechanisms of Orofacial PainR01DE018214 · NIDCR · MASSACHUSETTS GENERAL HOSPITAL · PI MAO, JIANREN · 2008 to 2012
$1.7M
Glutamate Uptake &the Pathogenesis of Neuropathic PainR01NS045681 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI MAO, JIANREN · 2004 to 2007
$1.4M
NIDA NIH HHS P20 DA026002NIDCR NIH HHS R01 DE018214NIDCR NIH HHS R01 DE018538NIDCR NIH HHS R01DE18214NIDCR NIH HHS R01DE18538NINDS NIH HHS R01 NS045681NINDS NIH HHS R01NS45681
6 · The paper itself

Abstract

Expression of the N-methyl-d-aspartate (NMDA) receptor in trigeminal nuclei has been shown to play a role in the mechanisms of trigeminal pain. Here, we examined the hypothesis that the upregulation of the NR1 subunit of the NMDA receptor (NR1) in the trigeminal subnucleus caudalis (Sp5c) following inflammation of the temporomandibular joint (TMJ) region would be regulated by interleukin-6 (IL-6) and the nuclear factor-kappa B (NF-kappaB). Inflammation of a unilateral TMJ region was produced in rats by injecting 50mul of complete Freund's adjuvant (CFA) into a TMJ and adjacent tissues, which resulted in persistent pain behavior as assessed using algometer before (baseline) and on days 1, 3, and 7 after the CFA injection. The CFA injection also induced a significant upregulation of NR1 and NF-kappaB on days 3 and 7, and of IL-6 on days 1, 3, and 7, within the ipsilateral Sp5c, as compared with the sham TMJ injection group. Once daily intracisternal injection of an IL-6 antiserum or NF-kappaB inhibitor (PDTC) for 6 days, beginning on day 1 immediately after the CFA injection, prevented both the upregulation of NR1 in the ipsilateral Sp5C and pain behavior. Moreover, once daily intracisternal IL-6 administration for 6 days in naïve rats induced the NR1 upregulation and pain behavior similar to that after TMJ inflammation. These results indicate that the upregulation of IL-6 and NF-kappaB after inflammation of the unilateral TMJ region is a critical regulatory mechanism for the expression of NR1 in the ipsilateral Sp5c, which contributed to the development of TMJ pain behavior in rats.

Indexed as

Analysis of VarianceAnimalsAntibodiesAntioxidantsDisease Models, AnimalFreund's AdjuvantHyperalgesiaInflammationInterleukin-6MaleNF-kappaB-Inducing KinasePain MeasurementPain ThresholdProlineProtein Serine-Threonine KinasesRatsAntibodiesAntioxidantsFreund's AdjuvantInterleukin-6NF-kappaB-Inducing KinaseNR1 NMDA receptorProlineprolinedithiocarbamateProtein Serine-Threonine KinasesReceptors, N-Methyl-D-AspartateThiocarbamates

Identifiers

PMID19058915
PMCPMC3491650
OpenAlexW2037858774

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.