Evidence map›Paper›PMID 23129781›Full record

ArticleJournal of neurology, neurosurgery, and psychiatry2013

Infrequent SCN9A mutations in congenital insensitivity to pain and erythromelalgia.

Christopher J Klein, Yanhong Wu, Dean H Kilfoyle, Paola Sandroni, Mark D Davis, Ralitza H Gavrilova, Phillip A Low, Peter J Dyck

Open access · hybridAbstract readCase Reports
In one paragraph

Article in Journal of neurology, neurosurgery, and psychiatry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
1.5field-weighted citation impact, top 20% 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

26 citing papers in PubMed, 61 citations in OpenAlex.

  1. Article
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  9. Review
  10. Article
  11. Case Report: MutantFrontiers in neuroscience · 2021
    Article
  12. Painful and painless mutations of SCN9A and SCN11A voltage-gated sodium channels.Pflugers Archiv : European journal of physiology · 2020
    Review
  13. Molecular Aspects of Regional Pain Syndrome.Pain research & management · 2020
    Review
  14. Review
  15. Voltage-gated sodium channels: (NaThe Journal of physiology · 2018
    Review
  16. Development of an AmpliSeqFrontiers in pharmacology · 2018
    Article
  17. Article
  18. Review
  19. Primary erythromelalgia: a review.Orphanet journal of rare diseases · 2015
    Review
  20. 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

8 authors at 4 institutions in 2 countries.

Christopher J KleinDepartment of Neurology, Division of Peripheral Nerve Diseases, Mayo Clinic, Rochester, MN 55905, USA. klein.christopher@mayo.edu
Yanhong Wu
Dean H Kilfoyle
Paola Sandroni
Mark D Davis
Ralitza H Gavrilova
Phillip A Low
Peter J Dyck
Mayo Clinic · USMayo Clinic in Florida · USAuckland District Health Board · NZMayo Clinic in Arizona · US

Funding

DIABETIC NEUROPATHY STUDYR01NS036797 · NINDS · MAYO CLINIC ROCHESTER · PI DYCK, PETER JAMES · 1997 to 2008
$6.8M
Identification of Genetic Causes of Hereditary Sensory and Autonomic NeuropathiesK08NS065007 · NINDS · MAYO CLINIC ROCHESTER · PI KLEIN, CHRISTOPHER · 2009 to 2013
$855k
NINDS NIH HHS K08 NS065007NINDS NIH HHS NS36797NINDS NIH HHS R01 NS036797
6 · The paper itself

Abstract

objectiveMutations in SCN9A have been reported in (1) congenital insensitivity to pain (CIP); (2) primary erythromelalgia; (3) paroxysmal extreme pain disorder; (4) febrile seizures and recently (5) small fibre sensory neuropathy. We sought to investigate for SCN9A mutations in a clinically well-characterised cohort of patients with CIP and erythromelalgia.

methodsWe sequenced all exons of SCN9A in 19 clinically well-studied cases including 6 CIP and 13 erythromelalgia (9 with family history, 10 with small-fibre neuropathy). The identified variants were assessed in dbSNP135, 1K genome, NHLBI-Exome Sequencing Project (5400-exomes) databases, and 768 normal chromosomes.

resultsIn erythromelalgia case 7, we identified a novel Q10>K mutation. In CIP case 6, we identified a novel, de novo splicing mutation (IVS8-2A>G); this splicing mutation compounded with a nonsense mutation (R523>X) and abolished SCN9A mRNA expression almost completely compared with his unaffected father. In CIP case 5, we found a variant (P610>T) previously considered causal for erythromelalgia, supporting recently raised doubt on its causal nature. We also found a splicing junction variant (IVS24-7delGTTT) in all 19 patients, this splicing variant was previously considered casual for CIP, but IVS24-7delGTTT was in fact the major allele in Caucasian populations.

conclusionsTwo novel SCN9A mutations were identified, but frequently polymorphism variants are found which may provide susceptibility factors in pain modulation. CIP and erythromelalgia are defined as genetically heterogeneous, and some SCN9A variants previously considered causal may only be modifying factors.

Indexed as

AdolescentAdultAge of OnsetAlternative SplicingBiopsyChildChild, PreschoolCohort StudiesDatabases, GeneticErythromelalgiaExonsFemaleGene FrequencyHumansMaleMicroscopy, ElectronNAV1.7 Voltage-Gated Sodium ChannelSCN9A protein, human

Identifiers

PMID23129781
PMCPMC3594382
OpenAlexW2136125079

What OpenQuestion holds

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LicenceCC BY-NC
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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.