Evidence map›Paper›PMID 16417630›Full record

ArticleMolecular pain2006

Selective up-regulation of NMDA-NR1 receptor expression in myenteric plexus after TNBS induced colitis in rats.

QiQi Zhou, Robert M Caudle, Donald D Price, Arseima Y Del Valle-Pinero, G Nicholas Verne

Open access · goldAbstract read
In one paragraph

Article in Molecular pain, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 7% 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

35 citing papers in PubMed, 1 synthesis or guideline pooled it, 64 citations in OpenAlex.

  1. Pooled it
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  12. Glutamatergic Signaling Along The Microbiota-Gut-Brain Axis.International journal of molecular sciences · 2019
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  20. Kynurenines and intestinal neurotransmission: the role of N-methyl-D-aspartate receptors.Journal of neural transmission (Vienna, Austria : 1996) · 2012
    Review
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.

QiQi ZhouDepartment of Medicine, University of Florida College of Medicine, Gainesville, FL 32610, USA. qzuou@yahoo.com
Robert M Caudle
Donald D Price
Arseima Y Del Valle-Pinero
G Nicholas Verne
Florida College · USUniversity of Florida · US

Funding

Mechanisms of Central and Peripheral HyperalgesiaR01NS053090 · NINDS · UNIVERSITY OF FLORIDA · PI VERNE, GEORGE NICHOLAS · 2005 to 2008
$1.3M
NINDS NIH HHS 1-R01-NS053090-01NINDS NIH HHS R01 NS053090
6 · The paper itself

Abstract

backgroundN-methyl-D-aspartic acid (NMDA) spinal cord receptors play an important role in the development of hyperalgesia following inflammation. It is unclear, however, if changes in NMDA subunit receptor gene expression in the colonic myenteric plexus are associated with colonic inflammation. We investigated regulation of NMDA-NR1 receptor gene expression in TNBS induced colitis in rats. Male Sprague-Dawley rats (150 g-250 g) were treated with 20 mg trinitrobenzene sulfonic acid (TNBS) diluted in 50% ethanol. The agents were delivered with a 24 gauge catheter inserted into the lumen of the colon. The animals were sacrificed at 2, 7, 14, 21, and 28 days after induction of the colitis, their descending colon was retrieved for reverse transcription-polymerase chain reaction; a subset of animals' distal colon was used for two-dimensional (2-D) western analysis and immunocytochemistry.

resultsNR1-exon 5 (N1) and NR1-exon 21 (C1) appeared 14, 21 and 28 days after TNBS treatment. NR1 pan mRNA was up-regulated at 14, 21, and 28 days. The NR1-exon 22 (C2) mRNA did not show significant changes. Using 2-D western analysis, untreated control rats were found to express only NR1001 whereas TNBS treated rats expressed NR1001, NR1011, and NR1111. Immunocytochemistry demonstrated NR1-N1 and NR1-C1 to be present in the myenteric plexus of TNBS treated rats.

conclusionThese results suggest a role for colonic myenteric plexus NMDA receptors in the development of neuronal plasticity and visceral hypersensitivity in the colon. Up-regulation of NMDA receptor subunits may reflect part of the basis for chronic visceral hypersensitivity in conditions such as post-infectious irritable bowel syndrome.

Indexed as

AnimalsColitisColonDisease Models, AnimalGlutamic AcidInflammation MediatorsMaleMyenteric PlexusNeuronal PlasticityNeuronsNociceptorsPainRatsRats, Sprague-DawleyReceptors, N-Methyl-D-AspartateSynaptic TransmissionGlutamic AcidInflammation MediatorsNR1 NMDA receptorReceptors, N-Methyl-D-AspartateTrinitrobenzenesulfonic Acid

Identifiers

PMID16417630
PMCPMC1402265
OpenAlexW1791741410

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Registered trials

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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.