Evidence map›Paper›PMID 24151064›Full record

ArticleEuropean journal of pain (London, England)2014

Electrophysiological characterization of spinal neuron sensitization by elevated calcium channel alpha-2-delta-1 subunit protein.

C Zhou, Z D Luo

Abstract read
In one paragraph

Article in European journal of pain (London, England), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

29 citing papers in PubMed, 54 citations in OpenAlex.

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  16. Impact of gabapentin on neuronal high voltage-activated CaExperimental and therapeutic medicine · 2017
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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

2 authors at 1 institution in 1 country.

C ZhouDepartment of Pharmacology, School of Medicine, University of California Irvine, USA.
Z D Luo
University of California, Irvine · US

Funding

A novel pathway mediating the development of chronic orofacial neuropathic painR01DE021847 · NIDCR · UNIVERSITY OF CALIFORNIA-IRVINE · PI LUO, ZHIGANG DAVID, STEWARD, OSWALD · 2011 to 2015
$3.6M
Mechanism of Calcium Channel Cava2d1 Protein Mediated Neuropathic PainR01NS064341 · NINDS · UNIVERSITY OF CALIFORNIA-IRVINE · PI LUO, ZHIGANG DAVID · 2010 to 2013
$1.2M
Defining Target Contribution To Orofacial Pain By Antisense OligonucleotidesR21DE019298 · NIDCR · UNIVERSITY OF CALIFORNIA-IRVINE · PI LUO, ZHIGANG DAVID · 2008 to 2009
$661k
Searching for Genes Responsibile for Neuropathic PainR21DE014545 · NIDCR · UNIVERSITY OF CALIFORNIA SAN DIEGO · PI LUO, ZHIGANG DAVID · 2003 to 2004
$303k
NIDCR NIH HHS DE014545NIDCR NIH HHS DE019298NIDCR NIH HHS DE021847NIDCR NIH HHS R01 DE021847NIDCR NIH HHS R21 DE014545NIDCR NIH HHS R21 DE019298NINDS NIH HHS NS064341NINDS NIH HHS R01 NS064341
6 · The paper itself

Abstract

backgroundVoltage-gated calcium channel α2 δ1 subunit is the binding site for gabapentin, an effective drug in controlling neuropathic pain states including thermal hyperalgesia. Hyperalgesia to noxious thermal stimuli in both spinal nerve-ligated (SNL) and voltage-gated calcium channel α2 δ1 overexpressing transgenic (Tg) mice correlates with higher α2 δ1 levels in dorsal root ganglia and dorsal spinal cord. In this study, we investigated whether abnormal synaptic transmission is responsible for thermal hyperalgesia induced by elevated α2 δ1 expression in these models.

methodsBehavioural sensitivities to thermal stimuli were test in L4 SNL and sham mice, as well as in α2 δ1 Tg and wild-type mice. Miniature excitatory (mEPSC) and inhibitory (mIPSC) post-synaptic currents were recorded in superficial dorsal spinal cord neurons from these models using whole-cell patch clamp slice recording techniques.

resultsThe frequency, but not amplitude, of mEPSC in superficial dorsal horn neurons was increased in SNL and α2 δ1 Tg mice, which could be attenuated by gabapentin dose dependently. Intrathecal α2 δ1 antisense oligodeoxynucleotide treatment diminished increased mEPSC frequency and gabapentin's inhibitory effects in elevated mEPSC frequency in the SNL mice. In contrast, neither the frequency nor the amplitude of mIPSC was altered in superficial dorsal horn neurons from the SNL and α2 δ1 Tg mice.

conclusionsOur findings support a role of peripheral nerve injury-induced α2 δ1 in enhancing pre-synaptic excitatory input onto superficial dorsal spinal cord neurons that contributes to nociception development.

Indexed as

AnimalsCalcium ChannelsCold TemperatureExcitatory Postsynaptic PotentialsInjections, SpinalMaleMiceMice, TransgenicOligodeoxyribonucleotides, AntisensePain MeasurementPatch-Clamp TechniquesPosterior Horn CellsUp-RegulationCACNA2D1 protein, mouseCalcium ChannelsOligodeoxyribonucleotides, Antisense

Identifiers

PMID24151064
PMCPMC3989413
OpenAlexW1869407211

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.