1
|
Medel V, Delano PH, Belkhiria C, Leiva A, De Gatica C, Vidal V, Navarro CF, Martín SS, Martínez M, Gierke C, García X, Cerda M, Vergara R, Delgado C, Farías GA. Cochlear dysfunction as an early biomarker of cognitive decline in normal hearing and mild hearing loss. ALZHEIMER'S & DEMENTIA (AMSTERDAM, NETHERLANDS) 2024; 16:e12467. [PMID: 38312514 PMCID: PMC10835081 DOI: 10.1002/dad2.12467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/27/2023] [Accepted: 07/01/2023] [Indexed: 02/06/2024]
Abstract
INTRODUCTION Age-related hearing loss is an important risk factor for cognitive decline. However, audiogram thresholds are not good estimators of dementia risk in subjects with normal hearing or mild hearing loss. Here we propose to use distortion product otoacoustic emissions (DPOAEs) as an objective and sensitive tool to estimate the risk of cognitive decline in older adults with normal hearing or mild hearing loss. METHODS We assessed neuropsychological, brain magnetic resonance imaging, and auditory analyses on 94 subjects > 64 years of age. RESULTS We found that cochlear dysfunction, measured by DPOAEs-and not by conventional audiometry-was associated with Clinical Dementia Rating Sum of Boxes (CDR-SoB) classification and brain atrophy in the group with mild hearing loss (25 to 40 dB) and normal hearing (<25 dB). DISCUSSION Our findings suggest that DPOAEs may be a non-invasive tool for detecting neurodegeneration and cognitive decline in the older adults, potentially allowing for early intervention.
Collapse
Affiliation(s)
- Vicente Medel
- Departamento de Neurociencia Facultad de Medicina Universidad de Chile Santiago Chile
- Latin American Brain Health Institute (BrainLat) Universidad Adolfo Ibáñez Santiago Chile
| | - Paul H Delano
- Departamento de Neurociencia Facultad de Medicina Universidad de Chile Santiago Chile
- Servicio Otorrinolaringología Hospital Clínico de la Universidad de Chile Santiago Chile
- Advanced Center for Electrical and Electronical Engineer (AC3E) Valparaíso Chile
- Biomedical Neuroscience Institute (BNI) Facultad de Medicina Universidad de Chile Santiago Chile
| | - Chama Belkhiria
- Departamento de Neurociencia Facultad de Medicina Universidad de Chile Santiago Chile
| | - Alexis Leiva
- Departamento de Neurociencia Facultad de Medicina Universidad de Chile Santiago Chile
| | - Cristina De Gatica
- Departamento de Neurociencia Facultad de Medicina Universidad de Chile Santiago Chile
| | - Victor Vidal
- Departamento de Neurociencia Facultad de Medicina Universidad de Chile Santiago Chile
| | - Carlos F Navarro
- Biomedical Neuroscience Institute (BNI) Facultad de Medicina Universidad de Chile Santiago Chile
- Integrative Biology Program Institute of Biomedical Sciences Center for Medical Informatics and Telemedicine Faculty of Medicine Universidad de Chile Santiago Chile
| | - Simon San Martín
- Departamento de Neurociencia Facultad de Medicina Universidad de Chile Santiago Chile
- Biomedical Neuroscience Institute (BNI) Facultad de Medicina Universidad de Chile Santiago Chile
| | - Melissa Martínez
- Servicio Neurología y Neurocirugía Hospital Clínico de la Universidad de Chile Santiago Chile
| | - Christine Gierke
- Departamento de Neurociencia Facultad de Medicina Universidad de Chile Santiago Chile
- Servicio Neurología y Neurocirugía Hospital Clínico de la Universidad de Chile Santiago Chile
| | - Ximena García
- Departamento de Neurociencia Facultad de Medicina Universidad de Chile Santiago Chile
- Advanced Clinical Research Center (CICA) Hospital Clínico Universidad de Chile Santiago Chile
| | - Mauricio Cerda
- Biomedical Neuroscience Institute (BNI) Facultad de Medicina Universidad de Chile Santiago Chile
- Integrative Biology Program Institute of Biomedical Sciences Center for Medical Informatics and Telemedicine Faculty of Medicine Universidad de Chile Santiago Chile
| | - Rodrigo Vergara
- Facultad de Psicología y Humanidades Universidad San Sebastián Sede Valdivia Chile
- Centro Nacional de Inteligencia Artificial (CENIA), Chile
| | - Carolina Delgado
- Departamento de Neurociencia Facultad de Medicina Universidad de Chile Santiago Chile
- Servicio Neurología y Neurocirugía Hospital Clínico de la Universidad de Chile Santiago Chile
| | - Gonzalo A Farías
- Departamento de Neurociencia Facultad de Medicina Universidad de Chile Santiago Chile
- Servicio Neurología y Neurocirugía Hospital Clínico de la Universidad de Chile Santiago Chile
- Advanced Clinical Research Center (CICA) Hospital Clínico Universidad de Chile Santiago Chile
| |
Collapse
|
2
|
Li R, Miao X, Han B, Li J. Cortical thickness of the left parahippocampal cortex links central hearing and cognitive performance in aging. Ann N Y Acad Sci 2023; 1522:117-125. [PMID: 36799333 DOI: 10.1111/nyas.14971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Hearing impairment is considered a leading modifiable risk factor of cognitive decline and dementia. While most evidence has been established on clinical assessment of peripheral hearing loss, understanding of how central hearing in real-world conditions is associated with cognitive aging is limited. This study analyzed the data of 473 unrelated healthy adults aged 36-100 years old from the Lifespan Human Connectome Project in Aging. Central hearing was evaluated using the Words-in-Noise decibel threshold. Cognitive functions were evaluated by the performance on cognitive tests, and cortical thickness was estimated from magnetic resonance imaging (MRI) data. Here, we show that a higher hearing threshold was associated with a lower performance on immediate and delayed episodic memory retrieval, switching aspect of executive function, working memory, reading decoding, and vocabulary comprehension. Cortical thickness in the left parahippocampal cortex (lPHC) was negatively associated with the hearing threshold and acted as a significant partial mediator in the association of central hearing with immediate recall, switching, reading decoding, and vocabulary comprehension. These findings suggest that cortical thickness in the lPHC, an early target of dementia, partially links central hearing and performance in multiple cognitive domains in aging.
Collapse
Affiliation(s)
- Rui Li
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China.,Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Xiaoyan Miao
- Department of Psychology and Special Education Research, National Institute of Education Sciences, Beijing, China
| | - Buxin Han
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China.,Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Juan Li
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China.,Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| |
Collapse
|
3
|
Moradi S, Engdahl B, Johannessen A, Selbæk G, Aarhus L, Haanes GG. Hearing loss, hearing aid use, and subjective memory complaints: Results of the HUNT study in Norway. Front Neurol 2023; 13:1094270. [PMID: 36712418 PMCID: PMC9875071 DOI: 10.3389/fneur.2022.1094270] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 12/13/2022] [Indexed: 01/13/2023] Open
Abstract
Objective This study aimed to explore the association between hearing loss severity, hearing aid use, and subjective memory complaints in a large cross-sectional study in Norway. Methods Data were drawn from the fourth wave of the Trøndelag Health Study (HUNT4 Hearing, 2017-2019). The hearing threshold was defined as the pure-tone average of 0.5, 1, 2, and 4 kHz in the better ear. The participants were divided into five groups: normal hearing or slight/mild/moderate/severe hearing loss. Subjective self-reported short-term and long-term memory complaints were measured by the nine-item Meta-Memory Questionnaire (MMQ). The sample included 20,092 individuals (11,675 women, mean age 58.3 years) who completed both hearing and MMQ tasks. A multivariate analysis of variance (adjusted for covariates of age, sex, education, and health cofounders) was used to evaluate the association between hearing status and hearing aid use (in the hearing-impaired groups) and long-term and short-term subjective memory complaints. Results A multivariate analysis of variance, followed by univariate ANOVA and pairwise comparisons, showed that hearing loss was associated only with more long-term subjective memory complaints and not with short-term subjective memory complaints. In the hearing-impaired groups, the univariate main effect of hearing aid use was only observed for subjective long-term memory complaints and not for subjective short-term memory complaints. Similarly, the univariate interaction of hearing aid use and hearing status was significant for subjective long-term memory complaints and not for subjective short-term memory complaints. Pairwise comparisons, however, revealed no significant differences between hearing loss groups with respect to subjective long-term complaints. Conclusion This cross-sectional study indicates an association between hearing loss and subjective long-term memory complaints but not with subjective short-term memory complaints. In addition, an interaction between hearing status and hearing aid use for subjective long-term memory complaints was observed in hearing-impaired groups, which calls for future research to examine the effects of hearing aid use on different memory systems.
Collapse
Affiliation(s)
- Shahram Moradi
- Department of Health, Social and Welfare Studies, Faculty of Health and Social Sciences, University of South-Eastern Norway, Porsgrunn, Norway,*Correspondence: Shahram Moradi ✉
| | - Bo Engdahl
- Department of Physical Health and Ageing, Norwegian Institute of Public Health, Oslo, Norway
| | - Aud Johannessen
- Department of Health, Social and Welfare Studies, Faculty of Health and Social Sciences, University of South-Eastern Norway, Horten, Norway,Norwegian National Centre for Ageing and Health, Vestfold Hospital Trust, Tønsberg, Norway
| | - Geir Selbæk
- Norwegian National Centre for Ageing and Health, Vestfold Hospital Trust, Tønsberg, Norway,Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway,Geriatric Department, Oslo University Hospital, Oslo, Norway
| | - Lisa Aarhus
- Department of Occupational Medicine and Epidemiology, National Institute of Occupational Health, Oslo, Norway,Medical Department, Diakonhjemmet Hospital, Oslo, Norway
| | - Gro Gade Haanes
- Department of Nursing and Health Sciences, Faculty of Health and Social Sciences, University of South-Eastern Norway, Horten, Norway
| |
Collapse
|
4
|
Tarawneh HY, Jayakody DM, Sohrabi HR, Martins RN, Mulders WH. Understanding the Relationship Between Age-Related Hearing Loss and Alzheimer’s Disease: A Narrative Review. J Alzheimers Dis Rep 2022; 6:539-556. [PMID: 36275417 PMCID: PMC9535607 DOI: 10.3233/adr-220035] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 08/16/2022] [Indexed: 12/02/2022] Open
Abstract
Evidence suggests that hearing loss (HL), even at mild levels, increases the long-term risk of cognitive decline and incident dementia. Hearing loss is one of the modifiable risk factors for dementia, with approximately 4 million of the 50 million cases of dementia worldwide possibly attributed to untreated HL. This paper describes four possible mechanisms that have been suggested for the relationship between age-related hearing loss (ARHL) and Alzheimer’s disease (AD), which is the most common form of dementia. The first mechanism suggests mitochondrial dysfunction and altered signal pathways due to aging as a possible link between ARHL and AD. The second mechanism proposes that sensory degradation in hearing impaired people could explain the relationship between ARHL and AD. The occupation of cognitive resource (third) mechanism indicates that the association between ARHL and AD is a result of increased cognitive processing that is required to compensate for the degraded sensory input. The fourth mechanism is an expansion of the third mechanism, i.e., the function and structure interaction involves both cognitive resource occupation (neural activity) and AD pathology as the link between ARHL and AD. Exploring the specific mechanisms that provide the link between ARHL and AD has the potential to lead to innovative ideas for the diagnosis, prevention, and/or treatment of AD. This paper also provides insight into the current evidence for the use of hearing treatments as a possible treatment/prevention for AD, and if auditory assessments could provide an avenue for early detection of cognitive impairment associated with AD.
Collapse
Affiliation(s)
- Hadeel Y. Tarawneh
- School of Human Sciences, The University of Western Australia, Crawley, WA, Australia
- Ear Science Institute Australia, Subiaco, WA, Australia
| | - Dona M.P. Jayakody
- Ear Science Institute Australia, Subiaco, WA, Australia
- Centre of Ear Science, Medical School, The University of Western Australia, Crawley, WA, Australia
| | - Hamid R. Sohrabi
- Centre for Healthy Ageing, College of Science, Health, Engineering and Education, Murdoch University, WA, Australia
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Macquarie University, NSW, Australia
| | - Ralph N. Martins
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Macquarie University, NSW, Australia
| | | |
Collapse
|
5
|
Powell DS, Oh ES, Reed NS, Lin FR, Deal JA. Hearing Loss and Cognition: What We Know and Where We Need to Go. Front Aging Neurosci 2022; 13:769405. [PMID: 35295208 PMCID: PMC8920093 DOI: 10.3389/fnagi.2021.769405] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 10/29/2021] [Indexed: 12/29/2022] Open
Abstract
Although a causal association remains to be determined, epidemiologic evidence suggests an association between hearing loss and increased risk of dementia. If we determine the association is causal, opportunity for targeted intervention for hearing loss may play a fundamental role in dementia prevention. In this discussion, we summarize current research on the association between hearing loss and dementia and review potential casual mechanisms behind the association (e.g., sensory-deprivation hypothesis, information-degradation hypothesis, common cause). We emphasize key areas of research which might best inform our investigation of this potential casual association. These selected research priorities include examination of the causal mechanism, measurement of co-existing hearing loss and cognitive impairment and determination of any bias in testing, potential for managing hearing loss for prevention of dementia and cognitive decline, or the potential to reduce dementia-related symptoms through the management of hearing loss. Addressing these research gaps and how results are then translated for clinical use may prove paramount for dementia prevention, management, and overall health of older adults.
Collapse
Affiliation(s)
- Danielle S Powell
- Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States.,Cochlear Center for Hearing and Public Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Esther S Oh
- Cochlear Center for Hearing and Public Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States.,Division of Geriatric Medicine and Gerontology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Nicholas S Reed
- Cochlear Center for Hearing and Public Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States.,Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States.,Department of Otolaryngology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Frank R Lin
- Cochlear Center for Hearing and Public Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States.,Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States.,Department of Otolaryngology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Jennifer A Deal
- Cochlear Center for Hearing and Public Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States.,Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States.,Department of Otolaryngology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| |
Collapse
|
6
|
Tarawneh HY, Menegola HK, Peou A, Tarawneh H, Jayakody DMP. Central Auditory Functions of Alzheimer's Disease and Its Preclinical Stages: A Systematic Review and Meta-Analysis. Cells 2022; 11:1007. [PMID: 35326458 PMCID: PMC8947537 DOI: 10.3390/cells11061007] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 03/01/2022] [Accepted: 03/12/2022] [Indexed: 01/01/2023] Open
Abstract
In 2020, 55 million people worldwide were living with dementia, and this number is projected to reach 139 million in 2050. However, approximately 75% of people living with dementia have not received a formal diagnosis. Hence, they do not have access to treatment and care. Without effective treatment in the foreseeable future, it is essential to focus on modifiable risk factors and early intervention. Central auditory processing is impaired in people diagnosed with Alzheimer's disease (AD) and its preclinical stages and may manifest many years before clinical diagnosis. This study systematically reviewed central auditory processing function in AD and its preclinical stages using behavioural central auditory processing tests. Eleven studies met the full inclusion criteria, and seven were included in the meta-analyses. The results revealed that those with mild cognitive impairment perform significantly worse than healthy controls within channel adaptive tests of temporal response (ATTR), time-compressed speech test (TCS), Dichotic Digits Test (DDT), Dichotic Sentence Identification (DSI), Speech in Noise (SPIN), and Synthetic Sentence Identification-Ipsilateral Competing Message (SSI-ICM) central auditory processing tests. In addition, this analysis indicates that participants with AD performed significantly worse than healthy controls in DDT, DSI, and SSI-ICM tasks. Clinical implications are discussed in detail.
Collapse
Affiliation(s)
- Hadeel Y. Tarawneh
- Ear Science Institute Australia, Subiaco, WA 6008, Australia; (H.Y.T.); (H.K.M.); (A.P.); (H.T.)
- Ear Sciences Centre, School of Surgery, University of Western Australia, Crawley, WA 6009, Australia
- School of Human Sciences, The University of Western Australia, Crawley, WA 6009, Australia
| | - Holly K. Menegola
- Ear Science Institute Australia, Subiaco, WA 6008, Australia; (H.Y.T.); (H.K.M.); (A.P.); (H.T.)
- Ear Sciences Centre, School of Surgery, University of Western Australia, Crawley, WA 6009, Australia
| | - Andrew Peou
- Ear Science Institute Australia, Subiaco, WA 6008, Australia; (H.Y.T.); (H.K.M.); (A.P.); (H.T.)
- School of Human Sciences, The University of Western Australia, Crawley, WA 6009, Australia
| | - Hanadi Tarawneh
- Ear Science Institute Australia, Subiaco, WA 6008, Australia; (H.Y.T.); (H.K.M.); (A.P.); (H.T.)
- Ear Sciences Centre, School of Surgery, University of Western Australia, Crawley, WA 6009, Australia
| | - Dona M. P. Jayakody
- Ear Science Institute Australia, Subiaco, WA 6008, Australia; (H.Y.T.); (H.K.M.); (A.P.); (H.T.)
- Ear Sciences Centre, School of Surgery, University of Western Australia, Crawley, WA 6009, Australia
- WA Centre for Health and Aging, University of Western Australia, Crawley, WA 6009, Australia
| |
Collapse
|
7
|
Kwok SS, Nguyen XMT, Wu DD, Mudar RA, Llano DA. Pure Tone Audiometry and Hearing Loss in Alzheimer's Disease: A Meta-Analysis. Front Psychol 2022; 12:788045. [PMID: 35153910 PMCID: PMC8833234 DOI: 10.3389/fpsyg.2021.788045] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 12/27/2021] [Indexed: 12/22/2022] Open
Abstract
An association between age-related hearing loss (ARHL) and Alzheimer's Disease (AD) has been widely reported. However, the nature of this relationship remains poorly understood. Quantification of hearing loss as it relates to AD is imperative for the creation of reliable, hearing-related biomarkers for earlier diagnosis and development of ARHL treatments that may slow the progression of AD. Previous studies that have measured the association between peripheral hearing function and AD have yielded mixed results. Most of these studies have been small and underpowered to reveal an association. Therefore, in the current report, we sought to estimate the degree to which AD patients have impaired hearing by performing a meta-analysis to increase statistical power. We reviewed 248 published studies that quantified peripheral hearing function using pure-tone audiometry for subjects with AD. Six studies, with a combined total of 171 subjects with AD compared to 222 age-matched controls, met inclusion criteria. We found a statistically significant increase in hearing threshold as measured by pure tone audiometry for subjects with AD compared to controls. For a three-frequency pure tone average calculated for air conduction thresholds at 500-1,000-2,000 Hz (0.5-2 kHz PTA), an increase of 2.3 decibel hearing level (dB HL) was found in subjects with AD compared to controls (p = 0.001). Likewise, for a four-frequency pure tone average calculated at 500-1,000-2,000-4,000 (0.5-4 kHz PTA), an increase of 4.5 dB HL was measured (p = 0.002), and this increase was significantly greater than that seen for 0.5-2 kHz PTA. There was no difference in the average age of the control and AD subjects. These data confirm the presence of poorer hearing ability in AD subjects, provided a quantitative estimate of the magnitude of hearing loss, and suggest that the magnitude of the effect is greater at higher sound frequencies. Systematic Review Registration: https://www.crd.york.ac.uk/prospero/, identifier: CRD42021288280.
Collapse
Affiliation(s)
- Susanna S. Kwok
- Carle Illinois College of Medicine, University of Illinois Urbana-Champaign, Urbana, IL, United States
| | - Xuan-Mai T. Nguyen
- Carle Illinois College of Medicine, University of Illinois Urbana-Champaign, Urbana, IL, United States
| | - Diana D. Wu
- Carle Illinois College of Medicine, University of Illinois Urbana-Champaign, Urbana, IL, United States
| | - Raksha A. Mudar
- Department of Speech and Hearing Sciences, University of Illinois Urbana-Champaign, Urbana, IL, United States
| | - Daniel A. Llano
- Carle Illinois College of Medicine, University of Illinois Urbana-Champaign, Urbana, IL, United States
- Department of Speech and Hearing Sciences, University of Illinois Urbana-Champaign, Urbana, IL, United States
- Department of Molecular and Integrative Physiology, University of Illinois Urbana-Champaign, Urbana, IL, United States
- Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, IL, United States
- Carle Neuroscience Institute, Carle Foundation Hospital, Urbana, IL, United States
| |
Collapse
|