Evidence map›Paper›PMID 32925064›Full record

ArticleJournal of Alzheimer's disease : JAD2020

Corneal Nerve and Brain Imaging in Mild Cognitive Impairment and Dementia.

Eiman Al-Janahi, Georgios Ponirakis, Hanadi Al Hamad, Surjith Vattoth, Ahmed Elsotouhy, Ioannis N Petropoulos, Adnan Khan, Hoda Gad, Mani Chandran, Anoop Sankaranarayanan and 19 more

Abstract read
In one paragraph

Article in Journal of Alzheimer's disease : JAD, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
–field-weighted citation impact
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

23 citing papers in PubMed.

  1. Article
  2. Review
  3. Review
  4. Ocular changes as potential biomarkers for early diagnosis of Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Review
  5. Review
  6. Greater exposure to PMEnvironmental health : a global access science source · 2024
    Observational
  7. Article
  8. Review
  9. Review
  10. Corneal nerve loss predicts dementia in patients with mild cognitive impairment.Annals of clinical and translational neurology · 2023
    Article
  11. Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review
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

29 authors.

Eiman Al-JanahiWeill Cornell Medicine-Qatar, Qatar Foundation, Education City, Doha, Qatar.
Georgios PonirakisWeill Cornell Medicine-Qatar, Qatar Foundation, Education City, Doha, Qatar.
Hanadi Al HamadGeriatric & Memory Clinic, Rumailah Hospital, Hamad Medical Corporation, Doha, Qatar.
Surjith VattothWeill Cornell Medicine-Qatar, Qatar Foundation, Education City, Doha, Qatar.
Ahmed ElsotouhyNeuroradiology, Hamad General Hospital, Hamad Medical Corporation, Doha, Qatar.
Ioannis N PetropoulosWeill Cornell Medicine-Qatar, Qatar Foundation, Education City, Doha, Qatar.
Adnan KhanWeill Cornell Medicine-Qatar, Qatar Foundation, Education City, Doha, Qatar.
Hoda GadWeill Cornell Medicine-Qatar, Qatar Foundation, Education City, Doha, Qatar.
Mani ChandranGeriatric & Memory Clinic, Rumailah Hospital, Hamad Medical Corporation, Doha, Qatar.
Anoop SankaranarayananSchool of Medicine, Western Sydney University, New South Wales, Australia.
Marwan RamadanGeriatric & Memory Clinic, Rumailah Hospital, Hamad Medical Corporation, Doha, Qatar.
Marwa ElorrabiGeriatric & Memory Clinic, Rumailah Hospital, Hamad Medical Corporation, Doha, Qatar.
Masharig GadelseedGeriatric & Memory Clinic, Rumailah Hospital, Hamad Medical Corporation, Doha, Qatar.
Rhia TosinoGeriatric & Memory Clinic, Rumailah Hospital, Hamad Medical Corporation, Doha, Qatar.
Priya V GawhaleGeriatric & Memory Clinic, Rumailah Hospital, Hamad Medical Corporation, Doha, Qatar.
Anjum ArasnGeriatric & Memory Clinic, Rumailah Hospital, Hamad Medical Corporation, Doha, Qatar.
Maryam AlobaidiGeriatric & Memory Clinic, Rumailah Hospital, Hamad Medical Corporation, Doha, Qatar.
Shafi KhanGeriatric & Memory Clinic, Rumailah Hospital, Hamad Medical Corporation, Doha, Qatar.
Pravija ManikothGeriatric & Memory Clinic, Rumailah Hospital, Hamad Medical Corporation, Doha, Qatar.
Yasmin HamdiGeriatric & Memory Clinic, Rumailah Hospital, Hamad Medical Corporation, Doha, Qatar.
Susan OsmanGeriatric & Memory Clinic, Rumailah Hospital, Hamad Medical Corporation, Doha, Qatar.
Navas NadukkandiyilGeriatric & Memory Clinic, Rumailah Hospital, Hamad Medical Corporation, Doha, Qatar.
Essa AlSulaitiGeriatric & Memory Clinic, Rumailah Hospital, Hamad Medical Corporation, Doha, Qatar.
Noushad ThodiMRI Unit, Rumailah Hospital, Hamad Medical Corporation, Doha, Qatar.
Hamad AlmuhannadiWeill Cornell Medicine-Qatar, Qatar Foundation, Education City, Doha, Qatar.
Ziyad R MahfoudWeill Cornell Medicine-Qatar, Qatar Foundation, Education City, Doha, Qatar.
Ahmed OwnSchool of Medicine, Western Sydney University, New South Wales, Australia.
Ashfaq ShuaibDepartment of Medicine, University of Alberta, Alberta, Canada.
Rayaz A MalikWeill Cornell Medicine-Qatar, Qatar Foundation, Education City, Doha, Qatar.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundVisual rating of medial temporal lobe atrophy (MTA) is an accepted structural neuroimaging marker of Alzheimer's disease. Corneal confocal microscopy (CCM) is a non-invasive ophthalmic technique that detects neuronal loss in peripheral and central neurodegenerative disorders.

objectiveTo determine the diagnostic accuracy of CCM for mild cognitive impairment (MCI) and dementia compared to medial temporal lobe atrophy (MTA) rating on MRI.

methodsSubjects aged 60-85 with no cognitive impairment (NCI), MCI, and dementia based on the ICD-10 criteria were recruited. Subjects underwent cognitive screening, CCM, and MTA rating on MRI.

results182 subjects with NCI (n = 36), MCI (n = 80), and dementia (n = 66), including AD (n = 19, 28.8%), VaD (n = 13, 19.7%), and mixed AD (n = 34, 51.5%) were studied. CCM showed a progressive reduction in corneal nerve fiber density (CNFD, fibers/mm2) (32.0±7.5 versus 24.5±9.6 and 20.8±9.3, p < 0.0001), branch density (CNBD, branches/mm2) (90.9±46.5 versus 59.3±35.7 and 53.9±38.7, p < 0.0001), and fiber length (CNFL, mm/mm2) (22.9±6.1 versus 17.2±6.5 and 15.8±7.4, p < 0.0001) in subjects with MCI and dementia compared to NCI. The area under the ROC curve (95% CI) for the diagnostic accuracy of CNFD, CNBD, CNFL compared to MTA-right and MTA-left for MCI was 78% (67-90%), 82% (72-92%), 86% (77-95%) versus 53% (36-69%) and 40% (25-55%), respectively, and for dementia it was 85% (76-94%), 84% (75-93%), 85% (76-94%) versus 86% (76-96%) and 82% (72-92%), respectively.

conclusionThe diagnostic accuracy of CCM, a non-invasive ophthalmic biomarker of neurodegeneration, was high and comparable with MTA rating for dementia but was superior to MTA rating for MCI.

Indexed as

AgedAged, 80 and overBrainCognitive DysfunctionCorneaDementiaFemaleHumansMagnetic Resonance ImagingMaleMicroscopy, ConfocalMiddle AgedOphthalmic NerveCorneal confocal microscopycorneal nerve fibersdementiamedial temporal lobe atrophymild cognitive impairmentneuropathology

Identifiers

PMID32925064
PMCPMC7683060

What OpenQuestion holds

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LicenceCC BY-NC
Read underepoch 390

Registered trials

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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.