Evidence map›Paper›PMID 12514201›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2003

Synaptic plasticity in the amygdala in a model of arthritic pain: differential roles of metabotropic glutamate receptors 1 and 5.

Volker Neugebauer, Weidong Li, Gary C Bird, Gautam Bhave, Robert W Gereau

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 141 papers.

0numbers the graph read from it
0cells of the map it votes in
141citing papers in PubMed
4.0field-weighted citation impact, top 5% 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

141 citing papers in PubMed, 239 citations in OpenAlex.

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  9. Sex Differences in Central Amygdala Glutamate Responses to Calcitonin Gene-Related Peptide.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
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81 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

5 authors at 2 institutions in 1 country.

Volker NeugebauerDepartment of Anatomy and Neurosciences and Marine Biomedical Institute, The University of Texas Medical Branch, Galveston, Texas 77555-1069, USA. voneugeb@utmb.edu
Weidong Li
Gary C Bird
Gautam Bhave
Robert W Gereau
The University of Texas Medical Branch at Galveston · USBaylor College of Medicine · US

Funding

PAIN, NOCICEPTION, AND THE AMYGDALAR01NS038261 · NINDS · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI Volker Neugebauer, Igor Ponomarev · 1999 to 2026
$8.7M
FUNCTION AND MODULATION OF METABOTROPIC GLU RECEPTOR 5R01MH060230 · NIMH · WASHINGTON UNIVERSITY · PI GEREAU, ROBERT W · 1999 to 2003
$910k
NIMH NIH HHS MH60230NINDS NIH HHS NS38261NINDS NIH HHS R01 NS038261
6 · The paper itself

Abstract

Pain has a strong emotional-affective dimension, and the amygdala plays a key role in emotionality. Mechanisms of pain-related changes in the amygdala were studied at the cellular and molecular levels in a model of arthritis pain. The influence of the arthritic condition induced in vivo on synaptic transmission and group I metabotropic glutamate receptor (mGluR1 and mGluR5) function was examined in vitro using whole-cell voltage-clamp recordings of neurons in the central nucleus of the amygdala (CeA). G-protein-coupled mGluRs are implicated in various forms of neuroplasticity as well as in neurological and psychiatric disorders. Synaptic transmission was evoked by electrical stimulation of afferents from the basolateral amygdala (BLA) and the pontine parabrachial (PB) area in brain slices from control (untreated or saline-injected) rats and from arthritic rats. This study shows enhanced synaptic transmission of nociceptive-specific inputs (PB-->CeA synapse) and polymodal sensory inputs (BLA-->CeA synapse) in the arthritis model. CeA neurons from arthritic rats also developed increased excitability compared with control CeA neurons. Synaptic plasticity in the CeA was accompanied by increased presynaptic mGluR1 function and upregulation of mGluR1 and mGluR5. A selective mGluR1 antagonist reduced transmission in CeA neurons from arthritic animals but not in control neurons, and increased levels of mGluR1 and mGluR5 protein were measured in the CeA of arthritic rats compared with controls. Our results show that plastic changes in the amygdala in an arthritis model that produces prolonged pain involve a critical switch of presynaptic mGluR1 expression and function.

Indexed as

Neuronal PlasticitySynaptic TransmissionAmygdalaAnimalsArthritis, ExperimentalBehavior, AnimalCell MembraneCells, CulturedElectric StimulationExcitatory Postsynaptic PotentialsMaleNeuronsPainPatch-Clamp TechniquesRatsRats, Sprague-DawleyGrm5 protein, ratmetabotropic glutamate receptor type 1Receptor, Metabotropic Glutamate 5Receptors, Metabotropic Glutamate

Identifiers

PMID12514201
PMCPMC6742141
OpenAlexW1761628643

What OpenQuestion holds

Textmetadata
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.