Evidence map›Paper›PMID 34234643›Full record

ArticleFrontiers in neuroscience2021

Association of Cerebral Ischemia With Corneal Nerve Loss and Brain Atrophy in MCI and Dementia.

Georgios Ponirakis, Ahmed Elsotouhy, Hanadi Al Hamad, Surjith Vattoth, Ioannis N Petropoulos, Adnan Khan, Hoda Gad, Fatima Al-Khayat, Mani Chandran, Marwan Ramadan and 17 more

Open access · goldAbstract read
In one paragraph

Article in Frontiers in neuroscience, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

10 citing papers in PubMed, 11 citations in OpenAlex.

  1. Article
  2. Ocular changes as potential biomarkers for early diagnosis of Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Review
  3. Corneal nerve loss predicts dementia in patients with mild cognitive impairment.Annals of clinical and translational neurology · 2023
    Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
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

27 authors at 6 institutions in 4 countries.

Georgios PonirakisDepartment of Medicine, Weill Cornell Medicine-Qatar, Qatar Foundation, Doha, Qatar.
Ahmed ElsotouhyDepartment of Medicine, Weill Cornell Medicine-Qatar, Qatar Foundation, Doha, Qatar.
Hanadi Al HamadGeriatric and Memory Clinic, Rumailah Hospital, Hamad Medical Corporation, Doha, Qatar.
Surjith VattothDepartment of Radiology, University of Arkansas for Medical Sciences, Little Rock, AR, United States.
Ioannis N PetropoulosDepartment of Medicine, Weill Cornell Medicine-Qatar, Qatar Foundation, Doha, Qatar.
Adnan KhanDepartment of Medicine, Weill Cornell Medicine-Qatar, Qatar Foundation, Doha, Qatar.
Hoda GadDepartment of Medicine, Weill Cornell Medicine-Qatar, Qatar Foundation, Doha, Qatar.
Fatima Al-KhayatDepartment of Medicine, Weill Cornell Medicine-Qatar, Qatar Foundation, Doha, Qatar.
Mani ChandranGeriatric and Memory Clinic, Rumailah Hospital, Hamad Medical Corporation, Doha, Qatar.
Marwan RamadanGeriatric and Memory Clinic, Rumailah Hospital, Hamad Medical Corporation, Doha, Qatar.
Marwa ElorrabiGeriatric and Memory Clinic, Rumailah Hospital, Hamad Medical Corporation, Doha, Qatar.
Masharig GadelseedGeriatric and Memory Clinic, Rumailah Hospital, Hamad Medical Corporation, Doha, Qatar.
Rhia TosinoGeriatric and Memory Clinic, Rumailah Hospital, Hamad Medical Corporation, Doha, Qatar.
Priya V GawhaleGeriatric and Memory Clinic, Rumailah Hospital, Hamad Medical Corporation, Doha, Qatar.
Maryam AlobaidiGeriatric and Memory Clinic, Rumailah Hospital, Hamad Medical Corporation, Doha, Qatar.
Shafi KhanGeriatric and Memory Clinic, Rumailah Hospital, Hamad Medical Corporation, Doha, Qatar.
Pravija ManikothGeriatric and Memory Clinic, Rumailah Hospital, Hamad Medical Corporation, Doha, Qatar.
Yasmin H M AbdelrahimGeriatric and Memory Clinic, Rumailah Hospital, Hamad Medical Corporation, Doha, Qatar.
Noushad ThodiMagnetic Resonance Imaging Unit, Rumailah Hospital, Hamad Medical Corporation, Doha, Qatar.
Hamad AlmuhannadiDepartment of Medicine, Weill Cornell Medicine-Qatar, Qatar Foundation, Doha, Qatar.
Salma Al-MohannadiDepartment of Medicine, Weill Cornell Medicine-Qatar, Qatar Foundation, Doha, Qatar.
Fatema AlMarriDepartment of Medicine, Weill Cornell Medicine-Qatar, Qatar Foundation, Doha, Qatar.
Murtaza QaziDepartment of Medicine, Weill Cornell Medicine-Qatar, Qatar Foundation, Doha, Qatar.
Ahmed OwnNeuroradiology, Hamad General Hospital, Hamad Medical Corporation, Doha, Qatar.
Ziyad R MahfoudDepartment of Medicine, Weill Cornell Medicine-Qatar, Qatar Foundation, Doha, Qatar.
Ashfaq ShuaibDepartment of Medicine, University of Alberta, Edmonton, AB, Canada.
Rayaz A MalikDepartment of Medicine, Weill Cornell Medicine-Qatar, Qatar Foundation, Doha, Qatar.
Hamad Medical Corporation · QAWeill Cornell Medical College in Qatar · QAHamad General Hospital · QAManchester Metropolitan University · GBUniversity of Alberta · CAUniversity of Arkansas for Medical Sciences · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThis study assessed the association of cerebral ischemia with neurodegeneration in mild cognitive impairment (MCI) and dementia.

methodsSubjects with MCI, dementia and controls underwent assessment of cognitive function, severity of brain ischemia, MRI brain volumetry and corneal confocal microscopy.

resultsOf 63 subjects with MCI ( DISCUSSION: Cerebral ischemia was associated with cognitive impairment, brain atrophy and corneal nerve loss in MCI and dementia.

Indexed as

brain atrophycorneal confocal microscopycorneal nerve fibersdementiaischemic lesionsmild cognitive impairmentsurrogate marker

Identifiers

PMID34234643
PMCPMC8257078
OpenAlexW3176194399

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.