Evidence map›Paper›PMID 29176367›Full record

ArticlePain2018

Rare NaV1.7 variants associated with painful diabetic peripheral neuropathy.

Iulia Blesneac, Andreas C Themistocleous, Carl Fratter, Linus J Conrad, Juan D Ramirez, James J Cox, Solomon Tesfaye, Pallai R Shillo, Andrew S C Rice, Stephen J Tucker and 1 more

Open access · hybridAbstract read
In one paragraph

Article in Pain, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed, 3 pooled it
10.1field-weighted citation impact, top 1% 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

63 citing papers in PubMed, 3 syntheses or guidelines pooled it, 135 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Review
  6. Article
  7. Article
  8. Review
  9. Diabetic neuropathy: cutting-edge research and future directions.Signal transduction and targeted therapy · 2025
    Review
  10. Article
  11. Review
  12. Genetic Variants Influence the Development of Diabetic Neuropathy.International journal of molecular sciences · 2024
    Review
  13. Rbfox1 regulates alternative splicing of Nrcam in primary sensory neurons to mediate peripheral nerve injury-induced neuropathic pain.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2024
    Article
  14. Article
  15. Review
  16. Article
  17. Peripheral mechanisms of peripheral neuropathic pain.Frontiers in molecular neuroscience · 2023
    Review
  18. Article
  19. Article
  20. Review

3 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

11 authors at 5 institutions in 2 countries.

Iulia BlesneacNuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom.
Andreas C ThemistocleousNuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom.
Carl FratterOxford Medical Genetics Laboratories, Oxford University Hospitals NHS Foundation Trust, The Churchill Hospital, Oxford, United Kingdom.
Linus J ConradClarendon Laboratory, Department of Physics, University of Oxford, Oxford, United Kingdom.
Juan D RamirezNuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom.
James J CoxMolecular Nociception Group, University College London, London, United Kingdom.
Solomon TesfayeDiabetes Research Unit, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, United Kingdom.
Pallai R ShilloDiabetes Research Unit, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, United Kingdom.
Andrew S C RicePain Research Group & Pain Medicine, Imperial College London, Chelsea and Westminster Hospital Campus, London, United Kingdom.
Stephen J TuckerClarendon Laboratory, Department of Physics, University of Oxford, Oxford, United Kingdom.
David L H BennettNuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom.
University of Oxford · GBSheffield Teaching Hospitals NHS Foundation Trust · GBChelsea and Westminster Hospital · GBUniversity College London · GBUniversity of the Witwatersrand · ZA

Funding

Medical Research Council G1100340Wellcome Trust 083259Wellcome Trust 200183/Z/15/ZWellcome Trust 202747/Z/16/ZWellcome Trust WT084655MA
6 · The paper itself

Abstract

Diabetic peripheral neuropathy (DPN) is a common disabling complication of diabetes. Almost half of the patients with DPN develop neuropathic pain (NeuP) for which current analgesic treatments are inadequate. Understanding the role of genetic variability in the development of painful DPN is needed for improved understanding of pain pathogenesis for better patient stratification in clinical trials and to target therapy more appropriately. Here, we examined the relationship between variants in the voltage-gated sodium channel NaV1.7 and NeuP in a deeply phenotyped cohort of patients with DPN. Although no rare variants were found in 78 participants with painless DPN, we identified 12 rare NaV1.7 variants in 10 (out of 111) study participants with painful DPN. Five of these variants had previously been described in the context of other NeuP disorders and 7 have not previously been linked to NeuP. Those patients with rare variants reported more severe pain and greater sensitivity to pressure stimuli on quantitative sensory testing. Electrophysiological characterization of 2 of the novel variants (M1852T and T1596I) demonstrated that gain of function changes as a consequence of markedly impaired channel fast inactivation. Using a structural model of NaV1.7, we were also able to provide further insight into the structural mechanisms underlying fast inactivation and the role of the C-terminal domain in this process. Our observations suggest that rare NaV1.7 variants contribute to the development NeuP in patients with DPN. Their identification should aid understanding of sensory phenotype, patient stratification, and help target treatments effectively.

Indexed as

AdultAgedCohort StudiesDiabetic NeuropathiesFemaleGenetic Association StudiesGenetic VariationHEK293 CellsHumansMaleMembrane PotentialsMiddle AgedModels, MolecularMutagenesis, Site-DirectedNAV1.7 Voltage-Gated Sodium ChannelPain MeasurementNAV1.7 Voltage-Gated Sodium Channel

Identifiers

PMID29176367
PMCPMC5828379
OpenAlexW2769408126

What OpenQuestion holds

Textmetadata
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.