Evidence map›Paper›PMID 25957174›Full record

ArticleMolecular pain2015

Sodium channel Nav1.7 in vascular myocytes, endothelium, and innervating axons in human skin.

Frank L Rice, Phillip J Albrecht, James P Wymer, Joel A Black, Ingemar Sj Merkies, Catharina G Faber, Stephen G Waxman

Open access · goldAbstract read
In one paragraph

Article in Molecular pain, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

20 citing papers in PubMed, 32 citations in OpenAlex.

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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

7 authors at 4 institutions in 2 countries.

Frank L RiceIntegrated Tissue Dynamics, LLC, Rensselaer, NY, 12144, USA. frankrice@intidyn.com.
Phillip J AlbrechtIntegrated Tissue Dynamics, LLC, Rensselaer, NY, 12144, USA. philabrecht@intidyn.com.
James P WymerDepartment of Neurology, Albany Medical College, Albany, NY, 12209, USA. wymerj@mail.amc.edu.
Joel A BlackCenter for Neuroscience & Regeneration Research, Yale University School of Medicine, West Haven, CT, 06516, USA. joel.black@yale.edu.
Ingemar Sj MerkiesDepartment of Neurology, Spaarne Hospital, Hoofddorp, the Netherlands. isjmerkies@planet.nl.
Catharina G FaberDepartment of Neurology, Maastricht University Medical Center, Maastricht, the Netherlands. c.faber@mumc.nl.
Stephen G WaxmanCenter for Neuroscience & Regeneration Research, Yale University School of Medicine, West Haven, CT, 06516, USA. Stephen.Waxman@yale.edu.
Albany Medical Center Hospital · USMaastricht University · NLVA Connecticut Healthcare System · USYale University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe skin is a morphologically complex organ that serves multiple complementary functions, including an important role in thermoregulation, which is mediated by a rich vasculature that is innervated by sympathetic and sensory endings. Two autosomal dominant disorders characterized by episodes of severe pain, inherited erythromelalgia (IEM) and paroxysmal extreme pain disorder (PEPD) have been directly linked to mutations that enhance the function of sodium channel Nav1.7. Pain attacks are accompanied by reddening of the skin in both disorders. Nav1.7 is known to be expressed at relatively high levels within both dorsal root ganglion (DRG) and sympathetic ganglion neurons, and mutations that enhance the activity of Nav1.7 have been shown to have profound effects on the excitability of both cell-types, suggesting that dysfunction of sympathetic and/or sensory fibers, which release vasoactive peptides at skin vasculature, may contribute to skin reddening in IEM and PEPD.

resultsIn the present study, we demonstrate that smooth muscle cells of cutaneous arterioles and arteriole-venule shunts (AVS) in the skin express sodium channel Nav1.7. Moreover, Nav1.7 is expressed by endothelial cells lining the arterioles and AVS and by sensory and sympathetic fibers innervating these vascular elements.

conclusionsThese observations suggest that the activity of mutant Nav1.7 channels in smooth muscle cells of skin vasculature and innervating sensory and sympathetic fibers contribute to the skin reddening and/or pain in IEM and PEPD.

Indexed as

AxonsEndotheliumErythromelalgiaGanglia, SpinalHumansMuscle CellsMutationNAV1.7 Voltage-Gated Sodium ChannelSkinNAV1.7 Voltage-Gated Sodium ChannelSCN9A protein, human

Identifiers

PMID25957174
PMCPMC4447014
OpenAlexW2144982794

What OpenQuestion holds

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LicenceCC BY
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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.