Evidence map›Paper›PMID 32814645›Full record

ReviewHearing research2021

Does hearing loss lead to dementia? A review of the literature.

Yosra Nadhimi, Daniel A Llano

Open access · greenAbstract readReview
In one paragraph

Review in Hearing research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
4.1field-weighted citation impact, top 5% 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

42 citing papers in PubMed, 61 citations in OpenAlex.

  1. Trial
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  7. Mutation Spectrum ofInternational journal of molecular sciences · 2025
    Article
  8. Review
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  12. Review
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  15. A novel approach for estimating initial sound level for speech reception threshold test.Technology and health care : official journal of the European Society for Engineering and Medicine · 2024
    Article
  16. Article
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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

2 authors at 1 institution in 1 country.

Yosra NadhimiMolecular and Cellular Biology, University of Illinois at Urbana-Champaign, USA.
Daniel A LlanoMolecular and Cellular Biology, University of Illinois at Urbana-Champaign, USA; Neuroscience Program, University of Illinois at Urbana-Champaign, USA; Carle Neuroscience Institute, Urbana, IL, USA; Beckman Institute for Advanced Science and Technology, Urbana, IL, USA. Electronic address: d-llano@illinois.edu.
University of Illinois Urbana-Champaign · US

Funding

Functional organization of the auditory corticocollicular systemR01DC013073 · NIDCD · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI DANIEL A LLANO · 2015 to 2026
$3.6M
Mechanisms of exercise-induced neuroprotection in a mouse model of presbycusisR03AG059103 · NIA · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI LLANO, DANIEL A · 2019 to 2020
$141k
NIA NIH HHS R03 AG059103NIDCD NIH HHS R01 DC013073
6 · The paper itself

Abstract

Recent studies have revealed a correlation between aging-related hearing loss and the likelihood of developing Alzheimer Disease. However, it is not yet known if the correlation simply reflects the fact that these two disorders share common risk factors or whether there is a causal link between them. The answer to this question carries therapeutic implications. Unfortunately, it is not possible to study the question of causality between aging-related hearing loss and dementia in human subjects. Here, we evaluate the research surrounding induced-hearing loss in animal models on non-auditory cognition to help infer if there is any causal evidence linking hearing loss and a more general dementia. We find ample evidence that induction of hearing loss in animals produces cognitive decline, particularly hippocampal dysfunction. The data suggest that noise-exposure produces a toxic milieu in the hippocampus consisting of a spike in glucocorticoid levels, elevations of mediators of oxidative stress and excitotoxicity, which as a consequence induce cessation of neurogenesis, synaptic loss and tau hyperphosphorylation. These data suggest that hearing loss can lead to pathological hallmarks similar to those seen in Alzheimer's Disease and other dementias. However, the rodent data do not establish that hearing loss on its own can induce a progressive degenerative dementing illness. Therefore, we conclude that an additional "hit", such as aging, APOE genotype, microvascular disease or others, may be necessary to trigger an ongoing degenerative process such as Alzheimer Disease.

Indexed as

Hearing LossAlzheimer DiseaseAnimalsCognitionCognitive DysfunctionDeafnessPresbycusisAlzheimerDementiaHearing lossHippocampusNoise-exposurePresbycusisTau

Identifiers

PMID32814645
PMCPMC9336511
OpenAlexW3046435279

What OpenQuestion holds

Textmetadata
LicenceTDM
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.