Retinal vascular measures from diabetes retinal screening photographs and risk of incident dementia in type 2 diabetes: A GoDARTS study

ObjectivePatients with diabetes have an increased risk of dementia. Improved prediction of dementia is an important goal in developing future prevention strategies. Diabetic retinopathy screening (DRS) photographs may be a convenient source of imaging biomarkers of brain health. We therefore investi...

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Main Authors: Alexander S. F. Doney, Aditya Nar, Yu Huang, Emanuele Trucco, Tom MacGillivray, Peter Connelly, Graham P. Leese, Gareth J. McKay, on behalf of the INSPIRED consortium
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-08-01
Series:Frontiers in Digital Health
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fdgth.2022.945276/full
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author Alexander S. F. Doney
Aditya Nar
Yu Huang
Emanuele Trucco
Tom MacGillivray
Peter Connelly
Graham P. Leese
Gareth J. McKay
on behalf of the INSPIRED consortium
author_facet Alexander S. F. Doney
Aditya Nar
Yu Huang
Emanuele Trucco
Tom MacGillivray
Peter Connelly
Graham P. Leese
Gareth J. McKay
on behalf of the INSPIRED consortium
author_sort Alexander S. F. Doney
collection DOAJ
description ObjectivePatients with diabetes have an increased risk of dementia. Improved prediction of dementia is an important goal in developing future prevention strategies. Diabetic retinopathy screening (DRS) photographs may be a convenient source of imaging biomarkers of brain health. We therefore investigated the association of retinal vascular measures (RVMs) from DRS photographs in patients with type 2 diabetes with dementia risk.Research Design and MethodsRVMs were obtained from 6,111 patients in the GoDARTS bioresource (635 incident cases) using VAMPIRE software. Their association, independent of Apo E4 genotype and clinical parameters, was determined for incident all cause dementia (ACD) and separately Alzheimer's disease (AD) and vascular dementia (VD). We used Cox’s proportional hazards with competing risk of death without dementia. The potential value of RVMs to increase the accuracy of risk prediction was evaluated.ResultsIncreased retinal arteriolar fractal dimension associated with increased risk of ACD (csHR 1.17; 1.08–1.26) and AD (HR 1.33; 1.16–1.52), whereas increased venular fractal dimension (FDV) was associated with reduced risk of AD (csHR 0.85; 0.74–0.96). Conversely, FDV was associated with increased risk of VD (csHR 1.22; 1.07–1.40). Wider arteriolar calibre was associated with a reduced risk of ACD (csHR 0.9; 0.83–0.98) and wider venular calibre was associated with a reduced risk of AD (csHR 0.87; 0.78–0.97). Accounting for competing risk did not substantially alter these findings. RVMs significantly increased the accuracy of prediction.ConclusionsConventional DRS photographs could enhance stratifying patients with diabetes at increased risk of dementia facilitating the development of future prevention strategies.
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spelling doaj.art-ca6d477f298741fe8dbe04650ae16dc02022-12-22T02:15:35ZengFrontiers Media S.A.Frontiers in Digital Health2673-253X2022-08-01410.3389/fdgth.2022.945276945276Retinal vascular measures from diabetes retinal screening photographs and risk of incident dementia in type 2 diabetes: A GoDARTS studyAlexander S. F. Doney0Aditya Nar1Yu Huang2Emanuele Trucco3Tom MacGillivray4Peter Connelly5Graham P. Leese6Gareth J. McKay7on behalf of the INSPIRED consortiumPopulation Health and Genomics, University of Dundee, Dundee, United KingdomPopulation Health and Genomics, University of Dundee, Dundee, United KingdomPopulation Health and Genomics, University of Dundee, Dundee, United KingdomVAMPIRE project, Computing, School of Science and Engineering, University of Dundee, Dundee, United KingdomVAMPIRE project, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, United KingdomNHS Tayside; NHS Research Scotland Neuroprogressive Disorders and Dementia Research Network, Ninewells Hospital Dundee; University of Dundee, Dundee, ScotlandPopulation Health and Genomics, University of Dundee, Dundee, United KingdomCentre for Public Health, Queen’s University Belfast, Belfast, NIR, United KingdomObjectivePatients with diabetes have an increased risk of dementia. Improved prediction of dementia is an important goal in developing future prevention strategies. Diabetic retinopathy screening (DRS) photographs may be a convenient source of imaging biomarkers of brain health. We therefore investigated the association of retinal vascular measures (RVMs) from DRS photographs in patients with type 2 diabetes with dementia risk.Research Design and MethodsRVMs were obtained from 6,111 patients in the GoDARTS bioresource (635 incident cases) using VAMPIRE software. Their association, independent of Apo E4 genotype and clinical parameters, was determined for incident all cause dementia (ACD) and separately Alzheimer's disease (AD) and vascular dementia (VD). We used Cox’s proportional hazards with competing risk of death without dementia. The potential value of RVMs to increase the accuracy of risk prediction was evaluated.ResultsIncreased retinal arteriolar fractal dimension associated with increased risk of ACD (csHR 1.17; 1.08–1.26) and AD (HR 1.33; 1.16–1.52), whereas increased venular fractal dimension (FDV) was associated with reduced risk of AD (csHR 0.85; 0.74–0.96). Conversely, FDV was associated with increased risk of VD (csHR 1.22; 1.07–1.40). Wider arteriolar calibre was associated with a reduced risk of ACD (csHR 0.9; 0.83–0.98) and wider venular calibre was associated with a reduced risk of AD (csHR 0.87; 0.78–0.97). Accounting for competing risk did not substantially alter these findings. RVMs significantly increased the accuracy of prediction.ConclusionsConventional DRS photographs could enhance stratifying patients with diabetes at increased risk of dementia facilitating the development of future prevention strategies.https://www.frontiersin.org/articles/10.3389/fdgth.2022.945276/fullretinal biomarkersdementia risk predictionVAMPIRE retinal image softwarediabetesdementia
spellingShingle Alexander S. F. Doney
Aditya Nar
Yu Huang
Emanuele Trucco
Tom MacGillivray
Peter Connelly
Graham P. Leese
Gareth J. McKay
on behalf of the INSPIRED consortium
Retinal vascular measures from diabetes retinal screening photographs and risk of incident dementia in type 2 diabetes: A GoDARTS study
Frontiers in Digital Health
retinal biomarkers
dementia risk prediction
VAMPIRE retinal image software
diabetes
dementia
title Retinal vascular measures from diabetes retinal screening photographs and risk of incident dementia in type 2 diabetes: A GoDARTS study
title_full Retinal vascular measures from diabetes retinal screening photographs and risk of incident dementia in type 2 diabetes: A GoDARTS study
title_fullStr Retinal vascular measures from diabetes retinal screening photographs and risk of incident dementia in type 2 diabetes: A GoDARTS study
title_full_unstemmed Retinal vascular measures from diabetes retinal screening photographs and risk of incident dementia in type 2 diabetes: A GoDARTS study
title_short Retinal vascular measures from diabetes retinal screening photographs and risk of incident dementia in type 2 diabetes: A GoDARTS study
title_sort retinal vascular measures from diabetes retinal screening photographs and risk of incident dementia in type 2 diabetes a godarts study
topic retinal biomarkers
dementia risk prediction
VAMPIRE retinal image software
diabetes
dementia
url https://www.frontiersin.org/articles/10.3389/fdgth.2022.945276/full
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