Evidence map›Paper›PMID 22483671›Full record

ArticleNeuromuscular disorders : NMD2012

X inactivation in females with X-linked Charcot-Marie-Tooth disease.

Sinéad M Murphy, Richard Ovens, James Polke, Carly E Siskind, Matilde Laurà, Karen Bull, Gita Ramdharry, Henry Houlden, Raymond P J Murphy, Michael E Shy and 1 more

Open access · hybridAbstract read
In one paragraph

Article in Neuromuscular disorders : NMD, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 23% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Systematic review of CMTX1 patients with episodic neurological dysfunction.Annals of clinical and translational neurology · 2021
    Pooled it
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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

11 authors at 4 institutions in 3 countries.

Sinéad M MurphyMRC Centre for Neuromuscular Diseases, The National Hospital for Neurology and Neurosurgery and Department of Molecular Neuroscience, UCL Institute of Neurology, London, UK. sinead.murphy@amnch.ie
Richard Ovens
James Polke
Carly E Siskind
Matilde Laurà
Karen Bull
Gita Ramdharry
Henry Houlden
Raymond P J Murphy
Michael E Shy
Mary M Reilly
University College London · GBNational Hospital for Neurology and Neurosurgery · GBTallaght University Hospital · IEWayne State University · US

Funding

trainingU54NS065712 · NINDS · WAYNE STATE UNIVERSITY · PI SHY, MICHAEL E. · 2009 to 2023
$19.6M
Medical Research Council G0601943Medical Research Council G0802760Medical Research Council G1001253Medical Research Council G108/638NINDS NIH HHS 1U54NS065712-01NINDS NIH HHS U54 NS065712
6 · The paper itself

Abstract

X-linked Charcot-Marie-Tooth disease (CMT1X) is the second most common inherited neuropathy, caused by mutations in gap junction beta-1 (GJB1). Males have a uniformly moderately severe phenotype while females have a variable phenotype, suggested to be due to X inactivation. We aimed to assess X inactivation pattern in females with CMT1X and correlate this with phenotype using the CMT examination score to determine whether the X inactivation pattern accounted for the variable phenotype in females with CMT1X. We determined X inactivation pattern in 67 females with CMT1X and 24 controls using the androgen receptor assay. We were able to determine which X chromosome carried the GJB1 mutation in 30 females. There was no difference in X inactivation pattern between patients and controls. In addition, there was no correlation between X inactivation pattern in blood and phenotype. A possible explanation for these findings is that the X inactivation pattern in Schwann cells rather than in blood may explain the variable phenotype in females with CMT1X.

Indexed as

Chromosomes, Human, XAdolescentAdultAgedCharcot-Marie-Tooth DiseaseFamily HealthFemaleGene FrequencyGenetic Diseases, X-LinkedHumansMaleMiddle AgedMutationX Chromosome InactivationYoung Adult

Identifiers

PMID22483671
PMCPMC3657177
OpenAlexW2016114712

What OpenQuestion holds

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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.