Author:
Slade Kate,Reilly Johannes H.,Jablonska Kamila,Smith El,Hayes Lawrence D.,Plack Christopher J.,Nuttall Helen E.
Abstract
This meta-analysis investigated the association between age-related hearing loss and structural neuroanatomy, specifically changes to gray matter volume. Hearing loss is associated with increased risk of cognitive decline. Hence, understanding the effects of hearing loss in older age on brain health is essential. We reviewed studies which compared older participants with hearing loss (age-related hearing loss: ARHL) to older adults without clinical hearing loss (no-ARHL), on neuroanatomical outcomes, specifically gray matter (GM) volume as measured by magnetic resonance imaging. A total of five studies met the inclusion criteria, three of which were included in an analysis of whole-brain gray matter volume (ARHL group n = 113; no-ARHL group n = 138), and three were included in analyses of lobe-wise gray matter volume (ARHL group n = 139; no-ARHL group n = 162). Effect-size seed-based d mapping software was employed for whole-brain and lobe-wise analysis of gray matter volume. The analysis indicated there was no significant difference between adults with ARHL compared to those with no-ARHL in whole-brain gray matter volume. Due to lacking stereotactic coordinates, the level of gray matter in specific neuroanatomical locations could only be observed at lobe-level. These data indicate that adults with ARHL show increased gray matter atrophy in the temporal lobe only (not in occipital, parietal, or frontal), compared to adults with no-ARHL. The implications for theoretical frameworks of the hearing loss and cognitive decline relationship are discussed in relation to the results. This meta-analysis was pre-registered on PROSPERO (CRD42021265375).Systematic Review Registration:https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=265375, PROSPERO CRD42021265375.
Funder
Biotechnology and Biological Sciences Research Council
Subject
Neurology (clinical),Neurology
Reference77 articles.
1. Population Estimates for the UK, England and Wales, Scotland and Northern Ireland: Mid-20202021
2. Hearing Matters [Internet]
3. Projections of Older People with Dementia and Costs of Dementia Care in the United Kingdom, 2019-2040
WittenbergR
HuB
Barraza-AraizaLF
RehillA
2019
4. Dementia prevention, intervention, and care: 2020 report of the Lancet Commission;Livingston;Lancet.,2020
5. Dementia prevention, intervention, and care;Livingston;Lancet.,2020
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