Evidence map›Paper›PMID 22996176›Full record

ArticleMuscle & nerve2012

Corneal confocal microscopy detects small-fiber neuropathy in Charcot-Marie-Tooth disease type 1A patients.

Mitra Tavakoli, Andy Marshall, Siddharth Banka, Ioannis N Petropoulos, Hassan Fadavi, Helen Kingston, Rayaz A Malik

Open access · greenAbstract read
In one paragraph

Article in Muscle & nerve, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
2.7field-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

51 citing papers in PubMed, 106 citations in OpenAlex.

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  8. Corneal nerve fiber involvement in chronic inflammatory demyelinating polyneuropathy.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2023
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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 1 country.

Mitra TavakoliDivision of Cardiovascular Medicine, University of Manchester and Wellcome Trust Clinical Research Facility, Manchester, UK.
Andy Marshall
Siddharth Banka
Ioannis N Petropoulos
Hassan Fadavi
Helen Kingston
Rayaz A Malik
NIHR Wellcome Trust Southampton Clinical Research Facility · GBSt Mary's Hospital · GBUniversity of Manchester · GBSalford Royal NHS Foundation Trust · GB

Funding

Corneal Confocal Microscopy: a non-invasive surrogate for diabetic neuropathyR01DK077903 · NIDDK · UNIVERSITY OF MANCHESTER · PI BOULTON, ANDREW JM, MALIK, RAYAZ AHMED · 2008 to 2012
$1.5M
NIDDK NIH HHS R01 DK077903PHS HHS R105991Wellcome Trust
6 · The paper itself

Abstract

introductionAlthough unmyelinated nerve fibers are affected in Charcot-Marie-Tooth type 1A (CMT1A) disease, they have not been studied in detail due to the invasive nature of the techniques needed to study them. We established alterations in C-fiber bundles of the cornea in patients with CMT1A using non-invasive corneal confocal microscopy (CCM).

methodsTwelve patients with CMT1A and 12 healthy control subjects underwent assessment of neuropathic symptoms and deficits, electrophysiology, quantitative sensory testing, corneal sensitivity, and corneal confocal microscopy.

resultsCorneal sensitivity, corneal nerve fiber density, corneal nerve branch density, corneal nerve fiber length, and corneal nerve fiber tortuosity were significantly reduced in CMT1A patients compared with controls. There was a significant correlation between corneal sensation and CCM parameters with the severity of painful neuropathic symptoms, cold and warm thresholds, and median nerve CMAP amplitude.

conclusionsCCM demonstrates significant damage to C-fiber bundles, which relates to some measures of neuropathy in CMT1A patients.

Indexed as

AdultCharcot-Marie-Tooth DiseaseCorneaFemaleHumansMaleMicroscopy, ConfocalMiddle AgedNerve Fibers, UnmyelinatedPain Measurement

Identifiers

PMID22996176
PMCPMC3469745
OpenAlexW2101631478

What OpenQuestion holds

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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.