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Sensory Loss and Risk of Dementia

Overview
Journal Neuroscientist
Publisher Sage Publications
Specialty Neurology
Date 2022 Sep 28
PMID 36169300
Authors
Affiliations
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Abstract

Sensory loss in olfaction, vision, and hearing is a risk factor for dementia, but the reasons for this are unclear. This review presents the neurobiological evidence linking each sensory modality to specific dementias and explores the potential mechanisms underlying this. Olfactory deficits can be linked to direct neuropathologic changes in the olfactory system due to Alzheimer disease and Parkinson disease, and may be a marker of disease severity. Visual deficits potentially increase dementia risk in a vulnerable individual by reducing resilience to dementia. Hearing deficits may indicate a susceptibility to Alzheimer disease through a variety of mechanisms. More generally, sensory impairment could be related to factors associated with resilience against dementia. Further research is needed to tease out the specific and synergistic effects of sensory impairment. Studying sensory loss in relation to neurodegenerative biomarkers is necessary to clarify the mechanisms involved. This could produce new monitoring and management strategies for people at risk of dementia.

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References
1.
McKeith I, Boeve B, Dickson D, Halliday G, Taylor J, Weintraub D . Diagnosis and management of dementia with Lewy bodies: Fourth consensus report of the DLB Consortium. Neurology. 2017; 89(1):88-100. PMC: 5496518. DOI: 10.1212/WNL.0000000000004058. View

2.
Misiak M, Hipolito M, Ressom H, Obisesan T, Manaye K, Nwulia E . Apo E4 Alleles and Impaired Olfaction as Predictors of Alzheimer's Disease. Clin Exp Psychol. 2018; 3(4). PMC: 5800509. DOI: 10.4172/2471-2701.1000169. View

3.
Leyland L, Bremner F, Mahmood R, Hewitt S, Durteste M, R E Cartlidge M . Visual tests predict dementia risk in Parkinson disease. Neurol Clin Pract. 2020; 10(1):29-39. PMC: 7057066. DOI: 10.1212/CPJ.0000000000000719. View

4.
Deal J, Goman A, Albert M, Arnold M, Burgard S, Chisolm T . Hearing treatment for reducing cognitive decline: Design and methods of the Aging and Cognitive Health Evaluation in Elders randomized controlled trial. Alzheimers Dement (N Y). 2018; 4:499-507. PMC: 6197326. DOI: 10.1016/j.trci.2018.08.007. View

5.
Toner C, Reese B, Neargarder S, Riedel T, Gilmore G, Cronin-Golomb A . Vision-fair neuropsychological assessment in normal aging, Parkinson's disease and Alzheimer's disease. Psychol Aging. 2011; 27(3):785-90. PMC: 3360123. DOI: 10.1037/a0026368. View