Evidence map›Paper›PMID 17002803›Full record

ArticleMolecular pain2006

Pain-related synaptic plasticity in spinal dorsal horn neurons: role of CGRP.

Gary C Bird, Jeong S Han, Yu Fu, Hita Adwanikar, William D Willis, Volker Neugebauer

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 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
3.4field-weighted citation impact, top 8% 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

44 citing papers in PubMed, 98 citations in OpenAlex.

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  20. Fremanezumab-A Humanized Monoclonal Anti-CGRP Antibody-Inhibits Thinly Myelinated (Aδ) But Not Unmyelinated (C) Meningeal Nociceptors.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2017
    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.

Gary C BirdDepartment of Neuroscience and Cell Biology, The University of Texas Medical Branch, Galveston, Texas 77555-1069, USA. gbird@cpeducate.com
Jeong S Han
Yu Fu
Hita Adwanikar
William D Willis
Volker Neugebauer
The University of Texas Medical Branch at Galveston · US

Funding

VISCERAL PAINP01NS011255 · NINDS · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI CHUNG, JIN M · 1985 to 2012
$13.6M
PAIN, NOCICEPTION, AND THE AMYGDALAR01NS038261 · NINDS · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI Volker Neugebauer, Igor Ponomarev · 1999 to 2026
$8.7M
NINDS NIH HHS NS11255NINDS NIH HHS NS38261NINDS NIH HHS P01 NS011255NINDS NIH HHS R01 NS038261
6 · The paper itself

Abstract

backgroundThe synaptic and cellular mechanisms of pain-related central sensitization in the spinal cord are not fully understood yet. Calcitonin gene-related peptide (CGRP) has been identified as an important molecule in spinal nociceptive processing and ensuing behavioral responses, but its contribution to synaptic plasticity, cellular mechanisms and site of action in the spinal cord remain to be determined. Here we address the role of CGRP in synaptic plasticity in the spinal dorsal horn in a model of arthritic pain.

resultsWhole-cell current- and voltage-clamp recordings were made from substantia gelatinosa (SG) neurons in spinal cord slices from control rats and arthritic rats (> 6 h postinjection of kaolin/carrageenan into the knee). Monosynaptic excitatory postsynaptic currents (EPSCs) were evoked by electrical stimulation of afferents in the dorsal root near the dorsal root entry zone. Neurons in slices from arthritic rats showed increased synaptic transmission and excitability compared to controls. A selective CGRP1 receptor antagonist (CGRP8-37) reversed synaptic plasticity in neurons from arthritic rats but had no significant effect on normal transmission. CGRP facilitated synaptic transmission in the arthritis pain model more strongly than under normal conditions where both facilitatory and inhibitory effects were observed. CGRP also increased neuronal excitability. Miniature EPSC analysis suggested a post- rather than pre-synaptic mechanism of CGRP action.

conclusionThis study is the first to show synaptic plasticity in the spinal dorsal horn in a model of arthritic pain that involves a postsynaptic action of CGRP on SG neurons.

Indexed as

Action PotentialsAnalysis of VarianceAnimalsArthritisCalcitonin Gene-Related PeptideCalcitonin Gene-Related Peptide Receptor AntagonistsDisease Models, AnimalMaleNeuronal PlasticityPainPatch-Clamp TechniquesPeptide FragmentsPosterior Horn CellsRatsRats, Sprague-DawleyReceptors, Calcitonin Gene-Related PeptideCalcitonin Gene-Related Peptidecalcitonin gene-related peptide (8-37)Calcitonin Gene-Related Peptide Receptor AntagonistsPeptide FragmentsReceptors, Calcitonin Gene-Related Peptide

Identifiers

PMID17002803
PMCPMC1592081
OpenAlexW2127773901

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.