Evidence map›Paper›PMID 22764245›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2012

Presynaptic Cav3.2 channels regulate excitatory neurotransmission in nociceptive dorsal horn neurons.

Megan O Jacus, Victor N Uebele, John J Renger, Slobodan M Todorovic

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 105 papers.

0numbers the graph read from it
0cells of the map it votes in
105citing papers in PubMed
7.0field-weighted citation impact, top 2% 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

105 citing papers in PubMed, 173 citations in OpenAlex.

  1. Review
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  5. Activation of GABA transmission by clonazepam reverses the autistic-like phenotypes of the Cav3.2 knockout mice.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025
    Article
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  13. Regulatory Action of Calcium and Calcium Channels in Pain Pathways.International journal of biological sciences · 2025
    Review
  14. Article
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  18. Article
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  20. Review

45 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

4 authors at 2 institutions in 1 country.

Megan O JacusDepartment of Anesthesiology, University of Virginia Health System, Charlottesville, Virginia 22908, USA.
Victor N Uebele
John J Renger
Slobodan M Todorovic
United States Military Academy · USUniversity of Virginia Health System · US

Funding

REDOX PHARMACOLOGY OF T CHANNELS IN DRG NEURONSR01GM075229 · NIGMS · UNIVERSITY OF VIRGINIA · PI TODOROVIC, SLOBODAN M. · 2006 to 2009
$1.3M
NIGMS NIH HHS 3R01GM075229-04S109NIGMS NIH HHS R01 GM075229
6 · The paper itself

Abstract

It is generally accepted that presynaptic transmitter release is mainly regulated by subtypes of neuronal high-voltage-activated Ca(2+) channels. Here for the first time, we examined the role of T-type Ca(2+) channels (T-channels) in synaptic transmission in the dorsal horn (DH) of the spinal cord using patch-clamp recordings from acute spinal cord preparations from both rat and mouse. We found that selective pharmacological antagonism of T-channels inhibited spontaneous synaptic release of glutamate in superficial laminae I-II of the DH, while GABA release was spared. We found similar effect in identified nociceptive projection neurons of lamina I of the DH, but not in inhibitory DH interneurons. In comparison, antagonism of T-channels did not affect excitatory transmission in deeper non-nociceptive DH laminae. Furthermore, we used isoform-specific agents, knock-out mice and immunohistochemistry to specifically implicate presynaptic Ca(V)3.2 channels. We also used an animal model of painful diabetic neuropathy to demonstrate that blocking T-channels in superficial DH neurons suppressed spontaneous excitatory synaptic transmission in diabetic rats in greater degree than in healthy age-matched animals. These studies provide previously unknown information regarding the role of presynaptic T-channels in nociceptive signaling in the spinal cord.

Indexed as

AnimalsCalcium Channels, T-TypeDiabetic NeuropathiesDisease Models, AnimalExcitatory Postsynaptic PotentialsMiceMice, Inbred C57BLMice, KnockoutNociceptorsOrgan Culture TechniquesPosterior Horn CellsPresynaptic TerminalsRatsRats, Sprague-DawleySynaptic TransmissionCacna1h protein, mouseCacna1h protein, ratCalcium Channels, T-Type

Identifiers

PMID22764245
PMCPMC3398424
OpenAlexW1975571417

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.