A systematic review of the association between dementia risk factors and cerebrovascular reactivity

<p>Cumulative evidence suggests that impaired cerebrovascular reactivity (CVR), a regulatory response critical for maintaining neuronal health, is amongst the earliest pathological changes in dementia. However, we know little about how CVR is affected by dementia risk, prior to disease onset....

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Main Authors: Wang, C, Reid, G, Mackay, CE, Hayes, G, Bulte, DP, Suri, S
Format: Journal article
Language:English
Published: Elsevier 2023
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author Wang, C
Reid, G
Mackay, CE
Hayes, G
Bulte, DP
Suri, S
author_facet Wang, C
Reid, G
Mackay, CE
Hayes, G
Bulte, DP
Suri, S
author_sort Wang, C
collection OXFORD
description <p>Cumulative evidence suggests that impaired cerebrovascular reactivity (CVR), a regulatory response critical for maintaining neuronal health, is amongst the earliest pathological changes in dementia. However, we know little about how CVR is affected by dementia risk, prior to disease onset. Understanding this relationship would improve our knowledge of disease pathways and help inform preventative interventions. This systematic review investigates 59 studies examining how CVR (measured by magnetic resonance imaging) is affected by modifiable, non-modifiable, and clinical risk factors for dementia. We report that non-modifiable risk (older age and apolipoprotein ε4), some modifiable factors (diabetes, traumatic brain injury, hypertension) and some clinical factors (stroke, carotid artery occlusion, stenosis) were consistently associated with reduced CVR. We also note a lack of conclusive evidence on how other behavioural factors such as physical inactivity, obesity, or depression, affect CVR. This review explores the biological mechanisms underpinning these brain-behaviour associations, highlights evident gaps in the literature, and identifies the risk factors that could be managed to preserve CVR in an effort to prevent dementia.</p>
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spelling oxford-uuid:e92cb9e9-9c97-4da0-bc9d-c8e9dc4e93862023-07-03T10:31:14ZA systematic review of the association between dementia risk factors and cerebrovascular reactivityJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:e92cb9e9-9c97-4da0-bc9d-c8e9dc4e9386EnglishSymplectic ElementsElsevier 2023Wang, CReid, GMackay, CEHayes, GBulte, DPSuri, S<p>Cumulative evidence suggests that impaired cerebrovascular reactivity (CVR), a regulatory response critical for maintaining neuronal health, is amongst the earliest pathological changes in dementia. However, we know little about how CVR is affected by dementia risk, prior to disease onset. Understanding this relationship would improve our knowledge of disease pathways and help inform preventative interventions. This systematic review investigates 59 studies examining how CVR (measured by magnetic resonance imaging) is affected by modifiable, non-modifiable, and clinical risk factors for dementia. We report that non-modifiable risk (older age and apolipoprotein ε4), some modifiable factors (diabetes, traumatic brain injury, hypertension) and some clinical factors (stroke, carotid artery occlusion, stenosis) were consistently associated with reduced CVR. We also note a lack of conclusive evidence on how other behavioural factors such as physical inactivity, obesity, or depression, affect CVR. This review explores the biological mechanisms underpinning these brain-behaviour associations, highlights evident gaps in the literature, and identifies the risk factors that could be managed to preserve CVR in an effort to prevent dementia.</p>
spellingShingle Wang, C
Reid, G
Mackay, CE
Hayes, G
Bulte, DP
Suri, S
A systematic review of the association between dementia risk factors and cerebrovascular reactivity
title A systematic review of the association between dementia risk factors and cerebrovascular reactivity
title_full A systematic review of the association between dementia risk factors and cerebrovascular reactivity
title_fullStr A systematic review of the association between dementia risk factors and cerebrovascular reactivity
title_full_unstemmed A systematic review of the association between dementia risk factors and cerebrovascular reactivity
title_short A systematic review of the association between dementia risk factors and cerebrovascular reactivity
title_sort systematic review of the association between dementia risk factors and cerebrovascular reactivity
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