Evidence map›Paper›PMID 36622689›Full record

ArticleTranslational vision science & technology2023

Retinal Vascular Changes in Alzheimer's Dementia and Mild Cognitive Impairment: A Pilot Study Using Ultra-Widefield Imaging.

Emma Pead, Atalie C Thompson, Dilraj S Grewal, Sarah McGrory, Cason B Robbins, Justin P Ma, Kim G Johnson, Andy J Liu, Charlene Hamid, Emanuele Trucco and 6 more

Open access · goldAbstract read
In one paragraph

Article in Translational vision science & technology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
5.5field-weighted citation impact, top 4% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  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. Article
  6. Article
  7. Review
  8. Review
  9. Review
  10. Alzheimer's disease pathophysiology in the Retina.Progress in retinal and eye research · 2024
    Review
  11. Article
  12. Article
  13. Article
  14. Potential Retinal Biomarkers in Alzheimer's Disease.International journal of molecular sciences · 2023
    Review
  15. Observational
  16. Article
  17. Review
  18. Retinal vasculometry associations with cognition status in UK Biobank.Alzheimer's & dementia (Amsterdam, Netherlands)
    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

16 authors at 6 institutions in 2 countries.

Emma PeadVAMPIRE Project, Centre for Clinical Brain Sciences, The University of Edinburgh, Edinburgh, UK.
Atalie C ThompsonDepartment of Ophthalmology, Duke University School of Medicine, Durham, NC, USA.
Dilraj S GrewalDepartment of Ophthalmology, Duke University School of Medicine, Durham, NC, USA.
Sarah McGroryVAMPIRE Project, Centre for Clinical Brain Sciences, The University of Edinburgh, Edinburgh, UK.
Cason B RobbinsDepartment of Ophthalmology, Duke University School of Medicine, Durham, NC, USA.
Justin P MaDepartment of Ophthalmology, Duke University School of Medicine, Durham, NC, USA.
Kim G JohnsonDepartment of Neurology, Duke University School of Medicine, Durham, NC, USA.
Andy J LiuDepartment of Neurology, Duke University School of Medicine, Durham, NC, USA.
Charlene HamidEdinburgh Clinical Research Facility, The University of Edinburgh, Edinburgh, UK.
Emanuele TruccoVAMPIRE Project, Computer Vision and Image Processing, Computing (SSE), The University of Dundee, Dundee, UK.
Craig W RitchieEdinburgh Dementia Prevention, The University of Edinburgh, Edinburgh, UK.
Graciela MunizDepartment of Social Medicine, Ohio University, Athens, OH, USA.
Imre LengyelThe Welcome-Wolfson Institute for Experimental Medicine, School of Medicine Dentistry and Biomedical Science, Queen's University Belfast, Belfast, UK.
Baljean DhillonVAMPIRE Project, Centre for Clinical Brain Sciences, The University of Edinburgh, Edinburgh, UK.
Sharon FekratDepartment of Ophthalmology, Duke University School of Medicine, Durham, NC, USA.
Tom MacGillivrayVAMPIRE Project, Centre for Clinical Brain Sciences, The University of Edinburgh, Edinburgh, UK.
Duke University · USUniversity of Edinburgh · GBNHS Lothian · GBOhio University · USQueen's University Belfast · GBUniversity of Dundee · GB

Funding

British Heart Foundation RE/18/5/34216Department of HealthMedical Research Council MR/N029941/1
6 · The paper itself

Abstract

Purpose: Retinal microvascular abnormalities measured on retinal images are a potential source of prognostic biomarkers of vascular changes in the neurodegenerating brain. We assessed the presence of these abnormalities in Alzheimer's dementia and mild cognitive impairment (MCI) using ultra-widefield (UWF) retinal imaging. Methods: UWF images from 103 participants (28 with Alzheimer's dementia, 30 with MCI, and 45 with normal cognition) underwent analysis to quantify measures of retinal vascular branching complexity, width, and tortuosity. Results: Participants with Alzheimer's dementia displayed increased vessel branching in the midperipheral retina and increased arteriolar thinning. Participants with MCI displayed increased rates of arteriolar and venular thinning and a trend for decreased vessel branching. Conclusions: Statistically significant differences in the retinal vasculature in peripheral regions of the retina were observed among the distinct cognitive stages. However, larger studies are required to establish the clinical importance of our findings. UWF imaging may be a promising modality to assess a larger view of the retinal vasculature to uncover retinal changes in Alzheimer's disease. Translational Relevance: This pilot work reports an investigation into which retinal vasculature measurements may be useful surrogate measures of cognitive decline, as well as technical developments (e.g., measurement standardization), that are first required to establish their recommended use and translational potential.

Indexed as

Alzheimer DiseaseCognitive DysfunctionHumansPilot ProjectsRetinaRetinal Vessels

Identifiers

PMID36622689
PMCPMC9838583
OpenAlexW4313829844

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.