Evidence map›Paper›PMID 32232351›Full record

ArticleInvestigative ophthalmology & visual science2020

Diabetic Neuropathy Is Characterized by Progressive Corneal Nerve Fiber Loss in the Central and Inferior Whorl Regions.

Maryam Ferdousi, Alise Kalteniece, Ioannis Petropoulos, Shazli Azmi, Shaishav Dhage, Andrew Marshall, Andrew J M Boulton, Nathan Efron, Catharina G Faber, Giuseppe Lauria and 2 more

Open access · goldAbstract readComparative Study
In one paragraph

Article in Investigative ophthalmology & visual science, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
6.3field-weighted citation impact, top 3% 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

29 citing papers in PubMed, 1 synthesis or guideline pooled it, 52 citations in OpenAlex.

  1. Pooled it
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  7. Article
  8. Quantifying the Corneal Nerve Whorl Pattern.Translational vision science & technology · 2024
    Article
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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

12 authors at 5 institutions in 5 countries.

Maryam Ferdousi,.
Alise Kalteniece,.
Ioannis Petropoulos,.
Shazli Azmi,.
Shaishav Dhage,.
Andrew Marshall,.
Andrew J M Boulton,.
Nathan Efron,.
Catharina G Faber,.
Giuseppe Lauria, ,.
Handrean Soran,.
Rayaz A Malik,.
NIHR Wellcome Trust Southampton Clinical Research Facility · GBWeill Cornell Medical College in Qatar · QAFondazione IRCCS Istituto Neurologico Carlo Besta · ITMaastricht University · NLQueensland University of Technology · AU

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 DK077903
6 · The paper itself

Abstract

Purpose: We hypothesized that longitudinal changes in corneal nerve morphology would differ between the central cornea and inferior whorl in relation to other measures of diabetic neuropathy. Methods: Thirty patients with diabetes (age: 54.08 ± 15.86, duration: 23.95 ± 14.2, HbA1c: 7.51 ± 1.37) and 19 age-matched healthy controls (age: 49.47 ± 13.25) underwent assessment of neuropathy disability score (NDS), vibration perception threshold (VPT), cold (CPT) and warm (WPT) perception thresholds, peroneal motor nerve conduction velocity (PMNCV), corneal nerve fiber density (CNFD), branch density (CNBD), fiber length (CNFL), inferior whorl length (IWL), and the average of CNFL and IWL (ANFL) at baseline and after 1 to 8 years. Results: In patients with diabetes, between baseline and follow-up, there was a significant reduction in CNBD (57.72 ± 30.08 vs. 44.04 ± 23.69; P = 0.02), CNFL (21.77 ± 5.19 vs. 15.65 ± 4.7; P < 0.0001), IWL (24.69 ± 8.67 vs. 14.23 ± 6.13; P < 0.0001), ANFL (23.26 ± 5.53 vs. 15.09 ± 4.48; P < 0.0001), and WPT (43.56 ± 4.43 vs. 40.78 ± 4.93; P = 0.01), and an increase in VPT (12.9 ± 8.96 vs. 13.78 ± 8.99; P = 0.02). There was no significant change in CNFD (27.12 ± 8.2 vs. 25.43 ± 7.11; P = 0.2), NDS (3.38 ± 3.35 vs. 2.61 ± 2.8; P = 0.08), CPT (17.7 ± 10.59 vs. 22.45 ± 9.23; P = 0.06), or PMNCV (42.4 ± 4.21 vs. 42.16 ± 6.3; P = 0.2). Conclusions: There is evidence of corneal nerve loss in patients with diabetes, particularly at the inferior whorl during follow-up.

Indexed as

AdultAgedBlood PressureBody Mass IndexCorneaDiabetes Mellitus, Type 1Diabetes Mellitus, Type 2Diabetic NeuropathiesFemaleGlycated HemoglobinHumansMaleMicroscopy, ConfocalMiddle AgedNerve FibersTrigeminal NerveGlycated Hemoglobinhemoglobin A1c protein, human

Identifiers

PMID32232351
PMCPMC7401481
OpenAlexW3013725676

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.