1
|
Urbanski DP, Wolf JM, Langworthy BW, Parikh RR, Jutkowitz E, Shippee TP. Reported Unmet Hearing Aid Need in Older People With Dementia: The US National Core Indicators Survey. J Am Med Dir Assoc 2024; 25:853-859. [PMID: 38643971 DOI: 10.1016/j.jamda.2024.03.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 03/13/2024] [Accepted: 03/14/2024] [Indexed: 04/23/2024]
Abstract
OBJECTIVES Hearing aids have important health benefits for older adults with Alzheimer disease and related dementias (ADRD); however, hearing aid adoption in this group is low. This study aimed to determine where to target hearing aid interventions for American long-term care recipients with ADRD by examining the association of ADRD and residence type with respondent-reported unmet hearing aid need. DESIGN, SETTING, AND PARTICIPANTS This cross-sectional study used data from the United States National Core Indicators-Aging and Disabilities survey (2015-2019) for long-term care recipients aged ≥65 years. METHODS We used multivariable logistic regression to model the likelihood of reporting unmet hearing aid need conditional on ADRD status and residence type (own/family house or apartment, residential care, or nursing facility/home), adjusting for sociodemographic factors and response type (self vs proxy). RESULTS Of the 25,492 respondents [median (IQR) age, 77 (71, 84) years; 7074 (27.8%) male], 5442 (21.4%) had ADRD and 3659 (14.4%) owned hearing aids. Residence types were 17,004 (66.8%) own/family house or apartment, 4966 (19.5%) residential care, and 3522 (13.8%) nursing home. Among non-hearing aid owners, ADRD [adjusted odds ratio (AOR) 0.90, 95% CI 0.80-1.0] and residence type were associated with respondent-reported unmet hearing aid need. Compared to the nursing home reference group, respondents in their own/family home (AOR 1.85, 95% CI 1.61-2.13) and residential care (AOR 1.30, 95% CI 1.10-1.53) were more likely to report unmet hearing aid need. This pattern was significantly more pronounced in people with ADRD than in those without, stemming from an interaction between ADRD and residence type. CONCLUSIONS AND IMPLICATIONS American long-term care recipients with ADRD living in their own/family home are more likely to report unmet hearing aid need than those with ADRD in institutional and congregate settings. This information can inform the design and delivery of hearing interventions for older adults with ADRD.
Collapse
Affiliation(s)
- Dana P Urbanski
- Department of Speech-Language-Hearing Sciences, University of Minnesota, Minneapolis, MN, USA; Division of Health Policy and Management, University of Minnesota School of Public Health, Minneapolis, MN, USA.
| | - Jack M Wolf
- Division of Biostatistics, University of Minnesota School of Public Health, Minneapolis, MN, USA
| | - Benjamin W Langworthy
- Division of Biostatistics, University of Minnesota School of Public Health, Minneapolis, MN, USA
| | - Romil R Parikh
- Division of Health Policy and Management, University of Minnesota School of Public Health, Minneapolis, MN, USA
| | - Eric Jutkowitz
- Department of Health Services, Policy & Practice, Brown University School of Public Health, Providence, RI, USA; Center of Innovation in Long Term Services and Supports, Providence VA Medical Center, Providence, RI, USA; Evidence Synthesis Program Center Providence VA Medical Center, Providence, RI, USA
| | - Tetyana P Shippee
- Division of Health Policy and Management, University of Minnesota School of Public Health, Minneapolis, MN, USA
| |
Collapse
|
2
|
Fuentes-Santamaría V, Benítez-Maicán Z, Alvarado JC, Fernández Del Campo IS, Gabaldón-Ull MC, Merchán MA, Juiz JM. Surface electrical stimulation of the auditory cortex preserves efferent medial olivocochlear neurons and reduces cochlear traits of age-related hearing loss. Hear Res 2024; 447:109008. [PMID: 38636186 DOI: 10.1016/j.heares.2024.109008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/19/2024] [Accepted: 04/11/2024] [Indexed: 04/20/2024]
Abstract
The auditory cortex is the source of descending connections providing contextual feedback for auditory signal processing at almost all levels of the lemniscal auditory pathway. Such feedback is essential for cognitive processing. It is likely that corticofugal pathways are degraded with aging, becoming important players in age-related hearing loss and, by extension, in cognitive decline. We are testing the hypothesis that surface, epidural stimulation of the auditory cortex during aging may regulate the activity of corticofugal pathways, resulting in modulation of central and peripheral traits of auditory aging. Increased auditory thresholds during ongoing age-related hearing loss in the rat are attenuated after two weeks of epidural stimulation with direct current applied to the surface of the auditory cortex for two weeks in alternate days (Fernández del Campo et al., 2024). Here we report that the same cortical electrical stimulation protocol induces structural and cytochemical changes in the aging cochlea and auditory brainstem, which may underlie recovery of age-degraded auditory sensitivity. Specifically, we found that in 18 month-old rats after two weeks of cortical electrical stimulation there is, relative to age-matched non-stimulated rats: a) a larger number of choline acetyltransferase immunoreactive neuronal cell body profiles in the ventral nucleus of the trapezoid body, originating the medial olivocochlear system.; b) a reduction of age-related dystrophic changes in the stria vascularis; c) diminished immunoreactivity for the pro-inflammatory cytokine TNFα in the stria vascularis and spiral ligament. d) diminished immunoreactivity for Iba1 and changes in the morphology of Iba1 immunoreactive cells in the lateral wall, suggesting reduced activation of macrophage/microglia; d) Increased immunoreactivity levels for calretinin in spiral ganglion neurons, suggesting excitability modulation by corticofugal stimulation. Altogether, these findings support that non-invasive neuromodulation of the auditory cortex during aging preserves the cochlear efferent system and ameliorates cochlear aging traits, including stria vascularis dystrophy, dysregulated inflammation and altered excitability in primary auditory neurons.
Collapse
Affiliation(s)
- V Fuentes-Santamaría
- School of Medicine, Universidad de Castilla-La Mancha (UCLM), Campus in Albacete, 02008, Albacete, Spain
| | - Z Benítez-Maicán
- School of Medicine, Universidad de Castilla-La Mancha (UCLM), Campus in Albacete, 02008, Albacete, Spain
| | - J C Alvarado
- School of Medicine, Universidad de Castilla-La Mancha (UCLM), Campus in Albacete, 02008, Albacete, Spain
| | - I S Fernández Del Campo
- Lab. of Auditory Neuroplasticity, Institute for Neuroscience of Castilla y León (INCYL), University of Salamanca, Salamanca, Spain
| | - M C Gabaldón-Ull
- School of Medicine, Universidad de Castilla-La Mancha (UCLM), Campus in Albacete, 02008, Albacete, Spain
| | - M A Merchán
- Lab. of Auditory Neuroplasticity, Institute for Neuroscience of Castilla y León (INCYL), University of Salamanca, Salamanca, Spain
| | - J M Juiz
- School of Medicine, Universidad de Castilla-La Mancha (UCLM), Campus in Albacete, 02008, Albacete, Spain; Hannover Medical School, Dept. of Otolaryngology and Cluster of Excellence "H4all" of the German Research Foundation, DFG, Carl-Neuberg-Str. 1, 30625 Hannover, Germany.
| |
Collapse
|
3
|
Gürkan S, Başokçu O, Durankaya SM, İşler Y, Kırkım G. Central Auditory Changes Associated with Age-related Hearing Loss. Clin EEG Neurosci 2024:15500594241243116. [PMID: 38566606 DOI: 10.1177/15500594241243116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Objective. This study aimed to investigate age-related changes in cortical auditory evoked potentials (CAEPs) while considering three crucial factors: aging, high-frequency hearing loss and sensation level of the CAEP stimulus. Method. The electrophysiological and audiometric data of 71 elderly participants were analyzed using multiple regression analysis to investigate the association of CAEPs with the factors of aging, high-frequency hearing loss and sensation level of the CAEP test stimulus. Results. Aging was significantly associated with prolonged N1 and P2 latencies and reduced P2 amplitude. Elevated thresholds related to the sensation level of the CAEP stimulus were significantly associated with increased N1 and P2 amplitudes and decreased N1 latency. A significant relationship was detected between high-frequency hearing thresholds and the shortening of P2 latencies and the reduction of P2 amplitudes. Conclusion. The results of this study highlight the complex interplay of aging, high-frequency hearing loss and the sensation level of the CAEP stimulus on CAEP components in elderly people. These factors should be considered in future research using CAEPs to enhance overall understanding of auditory processing in the aging population.
Collapse
Affiliation(s)
- Selhan Gürkan
- Vocational School of Health Services, Department of Audiometry, Dokuz Eylül University, İzmir, Turkey
| | - Oğuz Başokçu
- Department of Assessment and Evaluation in Education, Ege University, İzmir, Turkey
| | - Serpil Mungan Durankaya
- Vocational School of Health Services, Department of Audiometry, Dokuz Eylül University, İzmir, Turkey
| | - Yalçın İşler
- Department of Biomedical Engineering, İzmir Katip Çelebi University, İzmir, Turkey
| | - Günay Kırkım
- Vocational School of Health Services, Department of Audiometry, Dokuz Eylül University, İzmir, Turkey
| |
Collapse
|
4
|
Eshel M, Milon B, Hertzano R, Elkon R. The cells of the sensory epithelium, and not the stria vascularis, are the main cochlear cells related to the genetic pathogenesis of age-related hearing loss. Am J Hum Genet 2024; 111:614-617. [PMID: 38330941 PMCID: PMC10940011 DOI: 10.1016/j.ajhg.2024.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 01/18/2024] [Accepted: 01/19/2024] [Indexed: 02/10/2024] Open
Abstract
Age-related hearing loss (ARHL) is a major health concern among the elderly population. It is hoped that increasing our understanding of its underlying pathophysiological processes will lead to the development of novel therapies. Recent genome-wide association studies (GWASs) discovered a few dozen genetic variants in association with elevated risk for ARHL. Integrated analysis of GWAS results and transcriptomics data is a powerful approach for elucidating specific cell types that are involved in disease pathogenesis. Intriguingly, recent studies that applied such bioinformatics approaches to ARHL resulted in disagreeing findings as for the key cell types that are most strongly linked to the genetic pathogenesis of ARHL. These conflicting studies pointed either to cochlear sensory epithelial or to stria vascularis cells as the cell types most prominently involved in the genetic basis of ARHL. Seeking to resolve this discrepancy, we integrated the analysis of four ARHL GWAS datasets with four independent inner-ear single-cell RNA-sequencing datasets. Our analysis clearly points to the cochlear sensory epithelial cells as the key cells for the genetic predisposition to ARHL. We also explain the limitation of the bioinformatics analysis performed by previous studies that led to missing the enrichment for ARHL GWAS signal in sensory epithelial cells. Collectively, we show that cochlear epithelial cells, not stria vascularis cells, are the main inner-ear cells related to the genetic pathogenesis of ARHL.
Collapse
Affiliation(s)
- Mai Eshel
- Department of Human Molecular Genetics and Biochemistry, School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Beatrice Milon
- Neurotology Branch, NIDCD, National Institutes of Health, Bethesda, MD, USA
| | - Ronna Hertzano
- Neurotology Branch, NIDCD, National Institutes of Health, Bethesda, MD, USA.
| | - Ran Elkon
- Department of Human Molecular Genetics and Biochemistry, School of Medicine, Tel Aviv University, Tel Aviv, Israel.
| |
Collapse
|
5
|
Ninoyu Y, Friedman RA. The genetic landscape of age-related hearing loss. Trends Genet 2024; 40:228-237. [PMID: 38161109 DOI: 10.1016/j.tig.2023.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 12/03/2023] [Accepted: 12/04/2023] [Indexed: 01/03/2024]
Abstract
Age-related hearing loss (ARHL) is a prevalent concern in the elderly population. Recent genome-wide and phenome-wide association studies (GWASs and PheWASs) have delved into the identification of causative variants and the understanding of pleiotropy, highlighting the polygenic intricacies of this complex condition. While recent large-scale GWASs have pinpointed significant SNPs and risk variants associated with ARHL, the detailed mechanisms, encompassing both genetic and epigenetic modifications, remain to be fully elucidated. This review presents the latest advances in association studies, integrating findings from both human studies and model organisms. By juxtaposing historical perspectives with contemporary genomics, we aim to catalyze innovative research and foster the development of novel therapeutic strategies for ARHL.
Collapse
Affiliation(s)
- Yuzuru Ninoyu
- Department of Otolaryngology-Head and Neck Surgery, University of California, San Diego, La Jolla, CA, USA; Department of Otolaryngology-Head and Neck Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Rick A Friedman
- Department of Otolaryngology-Head and Neck Surgery, University of California, San Diego, La Jolla, CA, USA.
| |
Collapse
|
6
|
Zhang X, Cao R, Li C, Zhao H, Zhang R, Che J, Xie J, Tang N, Wang Y, Liu X, Zheng Q. Caffeine Ameliorates Age-Related Hearing Loss by Downregulating the Inflammatory Pathway in Mice. Otol Neurotol 2024; 45:227-237. [PMID: 38320571 PMCID: PMC10922330 DOI: 10.1097/mao.0000000000004098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
OBJECTIVE Age-related hearing loss (ARHL), also known as presbycusis, is a debilitating sensory impairment that affects the elderly population. There is currently no ideal treatment for ARHL. Long-term caffeine intake was reported to have anti-aging effects in many diseases. This study is to identify whether caffeine could ameliorate ARHL in mice and analyze its mechanism. METHODS Caffeine was administered in drinking water to C57BL/6J mice from the age of 3 months to 12 months. The body weight, food intake and water intake of the mice were monitored during the experiment. The metabolic indicators of serum were detected by ELISA. The function of the hearing system was evaluated by ABR and hematoxylin and eosin staining of the cochlea. Genes' expression were detected by Q-PCR, immunofluorescencee and Western blot. RESULTS The results showed that the ARHL mice exhibited impaired hearing and cochlear tissue compared with the young mice. However, the caffeine-treated ARHL mice showed improved hearing and cochlear tissue morphology. The expression of inflammation-related genes, such as TLR4, Myd88, NF-κB, and IL-1β, was significantly increased in the cochleae of ARHL mice compared with young mice but was down-regulated in the caffeine-treated cochleae. CONCLUSIONS Inflammation is involved in ARHL of mice, and long-term caffeine supplementation could ameliorate ARHL through the down-regulation of the TLR4/NF-κB inflammation pathway. Our findings provide a new idea for preventing ARHL and suggest new drug targets for ARHL treatment.
Collapse
Affiliation(s)
- Xiaolin Zhang
- Department of Otolaryngology/Head and Neck Surgery, Institute of Otolaryngology, Binzhou Medical University Hospital, Binzhou, China
| | - Ruijuan Cao
- Department of Otolaryngology/Head and Neck Surgery, Institute of Otolaryngology, Binzhou Medical University Hospital, Binzhou, China
| | - Changye Li
- Department of Otolaryngology/Head and Neck Surgery, Institute of Otolaryngology, Binzhou Medical University Hospital, Binzhou, China
| | - Hongchun Zhao
- Department of Otolaryngology/Head and Neck Surgery, Institute of Otolaryngology, Binzhou Medical University Hospital, Binzhou, China
| | - Ruyi Zhang
- Department of Otolaryngology/Head and Neck Surgery, Institute of Otolaryngology, Binzhou Medical University Hospital, Binzhou, China
| | - Juan Che
- Department of Otolaryngology/Head and Neck Surgery, Institute of Otolaryngology, Binzhou Medical University Hospital, Binzhou, China
| | - Jinwen Xie
- Shandong Binzhou Animal science and veterinary Medicine Academy, Binzhou, China, 256600
| | - Na Tang
- Shandong Binzhou Animal science and veterinary Medicine Academy, Binzhou, China, 256600
| | - Yanfei Wang
- Department of Otolaryngology/Head and Neck Surgery, Institute of Otolaryngology, Binzhou Medical University Hospital, Binzhou, China
| | - Xiuzhen Liu
- Department of Clinical Laboratory, Binzhou Medical University Hospital, Binzhou, China
| | - Qingyin Zheng
- Department of Otolaryngology-HNS, Case Western Reserve University
| |
Collapse
|
7
|
Wagner TM, Wagner L, Plontke SK, Rahne T. Enhancing Cochlear Implant Outcomes across Age Groups: The Interplay of Forward Focus and Advanced Combination Encoder Coding Strategies in Noisy Conditions. J Clin Med 2024; 13:1399. [PMID: 38592239 PMCID: PMC10931918 DOI: 10.3390/jcm13051399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 02/14/2024] [Accepted: 02/23/2024] [Indexed: 04/10/2024] Open
Abstract
Background: Hearing in noise is challenging for cochlear implant users and requires significant listening effort. This study investigated the influence of ForwardFocus and number of maxima of the Advanced Combination Encoder (ACE) strategy, as well as age, on speech recognition threshold and listening effort in noise. Methods: A total of 33 cochlear implant recipients were included (age ≤ 40 years: n = 15, >40 years: n = 18). The Oldenburg Sentence Test was used to measure 50% speech recognition thresholds (SRT50) in fluctuating and stationary noise. Speech was presented frontally, while three frontal or rear noise sources were used, and the number of ACE maxima varied between 8 and 12. Results: ForwardFocus significantly improved the SRT50 when noise was presented from the back, independent of subject age. The use of 12 maxima further improved the SRT50 when ForwardFocus was activated and when noise and speech were presented frontally. Listening effort was significantly worse in the older age group compared to the younger age group and was reduced by ForwardFocus but not by increasing the number of ACE maxima. Conclusion: Forward Focus can improve speech recognition in noisy environments and reduce listening effort, especially in older cochlear implant users.
Collapse
Affiliation(s)
- Telse M. Wagner
- Department of Otorhinolaryngology, University Medicine Halle, Ernst-Grube-Straße 40, 06120 Halle (Saale), Germany; (L.W.); (S.K.P.); (T.R.)
| | | | | | | |
Collapse
|
8
|
Bovee S, Klump GM, Pyott SJ, Sielaff C, Köppl C. Cochlear Ribbon Synapses in Aged Gerbils. Int J Mol Sci 2024; 25:2738. [PMID: 38473985 DOI: 10.3390/ijms25052738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 02/15/2024] [Accepted: 02/21/2024] [Indexed: 03/14/2024] Open
Abstract
In mammalian hearing, type-I afferent auditory nerve fibers comprise the basis of the afferent auditory pathway. They are connected to inner hair cells of the cochlea via specialized ribbon synapses. Auditory nerve fibers of different physiological types differ subtly in their synaptic location and morphology. Low-spontaneous-rate auditory nerve fibers typically connect on the modiolar side of the inner hair cell, while high-spontaneous-rate fibers are typically found on the pillar side. In aging and noise-damaged ears, this fine-tuned balance between auditory nerve fiber populations can be disrupted and the functional consequences are currently unclear. Here, using immunofluorescent labeling of presynaptic ribbons and postsynaptic glutamate receptor patches, we investigated changes in synaptic morphology at three different tonotopic locations along the cochlea of aging gerbils compared to those of young adults. Quiet-aged gerbils showed about 20% loss of afferent ribbon synapses. While the loss was random at apical, low-frequency cochlear locations, at the basal, high-frequency location it almost exclusively affected the modiolar-located synapses. The subtle differences in volumes of pre- and postsynaptic elements located on the inner hair cell's modiolar versus pillar side were unaffected by age. This is consistent with known physiology and suggests a predominant, age-related loss in the low-spontaneous-rate auditory nerve population in the cochlear base, but not the apex.
Collapse
Affiliation(s)
- Sonny Bovee
- Department of Neuroscience, School of Medicine and Health Science, Carl von Ossietzky Universität Oldenburg, 26129 Oldenburg, Germany
| | - Georg M Klump
- Department of Neuroscience, School of Medicine and Health Science, Carl von Ossietzky Universität Oldenburg, 26129 Oldenburg, Germany
- Cluster of Excellence "Hearing4all", Carl von Ossietzky Universität Oldenburg, 26129 Oldenburg, Germany
- Research Centre Neurosensory Science, Carl von Ossietzky Universität Oldenburg, 26129 Oldenburg, Germany
| | - Sonja J Pyott
- Department of Otorhinolaryngology/Head and Neck Surgery, University Medical Center Groningen, University of Groningen, P.O. Box 30.001, 9700 RB Groningen, The Netherlands
| | - Charlotte Sielaff
- Department of Neuroscience, School of Medicine and Health Science, Carl von Ossietzky Universität Oldenburg, 26129 Oldenburg, Germany
- Fraunhofer Institute for Toxicology and Experimental Medicine (ITEM), 30625 Hannover, Germany
| | - Christine Köppl
- Department of Neuroscience, School of Medicine and Health Science, Carl von Ossietzky Universität Oldenburg, 26129 Oldenburg, Germany
- Cluster of Excellence "Hearing4all", Carl von Ossietzky Universität Oldenburg, 26129 Oldenburg, Germany
- Research Centre Neurosensory Science, Carl von Ossietzky Universität Oldenburg, 26129 Oldenburg, Germany
| |
Collapse
|
9
|
Zhu K, Wang T, Li S, Liu Z, Zhan Y, Zhang Q. NcRNA: key and potential in hearing loss. Front Neurosci 2024; 17:1333131. [PMID: 38298898 PMCID: PMC10827912 DOI: 10.3389/fnins.2023.1333131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Accepted: 12/18/2023] [Indexed: 02/02/2024] Open
Abstract
Hearing loss has an extremely high prevalence worldwide and brings incredible economic and social burdens. Mechanisms such as epigenetics are profoundly involved in the initiation and progression of hearing loss and potentially yield definite strategies for hearing loss treatment. Non-coding genes occupy 97% of the human genome, and their transcripts, non-coding RNAs (ncRNAs), are widely participated in regulating various physiological and pathological situations. NcRNAs, mainly including micro-RNAs (miRNAs), long-stranded non-coding RNAs (lncRNAs), and circular RNAs (circRNAs), are involved in the regulation of cell metabolism and cell death by modulating gene expression and protein-protein interactions, thus impacting the occurrence and prognosis of hearing loss. This review provides a detailed overview of ncRNAs, especially miRNAs and lncRNAs, in the pathogenesis of hearing loss. We also discuss the shortcomings and issues that need to be addressed in the study of hearing loss ncRNAs in the hope of providing viable therapeutic strategies for the precise treatment of hearing loss.
Collapse
Affiliation(s)
- Keyu Zhu
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ting Wang
- Department of Medical Ultrasound, Tongji Hospital of Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China
| | - Sicheng Li
- Department of Plastic Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Zeming Liu
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuanyuan Zhan
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qi Zhang
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
10
|
Zeng C, Gu X, Chen Y, Lin Y, Chen J, Chen Z, Chen C, Yao G, Lin C. Identification and experimental validation of ferroptosis-related gene lactotransferrin in age-related hearing loss. Front Aging Neurosci 2024; 16:1309115. [PMID: 38282692 PMCID: PMC10809180 DOI: 10.3389/fnagi.2024.1309115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 01/02/2024] [Indexed: 01/30/2024] Open
Abstract
Objective To reveal the relationship between ARHL and ferroptosis and screen ferroptosis-related genes (FRGs) in ARHL. Methods Bioinformatics were used to analyze the hub genes and molecular mechanism of ferroptosis in the aging cochleae. Senescence β-galactosidase staining, iron content detection, and micro malondialdehyde (MDA) assay kits were used to measure β-galactosidase activity, and expression of Fe2+ and MDA, respectively. Fluorescence microscope was used for immunofluorescence assay of hub genes. Western blot was used to verify the expression of hub genes in HEI-OC1 cells, cochlear explants, and cochleae of C57BL/6J mice. Data were expressed as mean ± SD of at least three independent experiments. Results The analysis of bioinformatics confirmed that lactotransferrin (LTF) is the hub gene and CEBPA-miR-130b-LTF network is the molecular mechanism for cochlear ferroptosis. Compared with the control group, the experiments proved that the indicators of ferroptosis, including Fe2+, MDA, and LTF were differentially expressed in aging HEI-OC1 cells, aging cochlear explants, and aging cochleae. Conclusion These results demonstrate that ferroptosis plays an important role in ARHL, and LTF is a potential therapeutic target for ARHL via regulating cochlear ferroptosis.
Collapse
Affiliation(s)
- Chaojun Zeng
- Department of Otorhinolaryngology Head and Neck Surgery, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Otorhinolaryngology Head and Neck Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Institute of Otolaryngology, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Xi Gu
- Department of Otorhinolaryngology Head and Neck Surgery, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Otorhinolaryngology Head and Neck Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Institute of Otolaryngology, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Yuqing Chen
- Department of Otorhinolaryngology Head and Neck Surgery, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Otorhinolaryngology Head and Neck Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Institute of Otolaryngology, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Yanchun Lin
- Department of Otorhinolaryngology Head and Neck Surgery, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Otorhinolaryngology Head and Neck Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Institute of Otolaryngology, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Junying Chen
- Central Laboratory, Key Laboratory of Radiation Biology of Fujian Higher Education Institutions, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Central Laboratory, Key Laboratory of Radiation Biology of Fujian Higher Education Institutions, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Zhifeng Chen
- Department of Otorhinolaryngology Head and Neck Surgery, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Otorhinolaryngology Head and Neck Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Institute of Otolaryngology, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Chenyu Chen
- Department of Otorhinolaryngology Head and Neck Surgery, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Otorhinolaryngology Head and Neck Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Institute of Otolaryngology, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Guangnan Yao
- Department of Otorhinolaryngology Head and Neck Surgery, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Otorhinolaryngology Head and Neck Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Institute of Otolaryngology, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Chang Lin
- Department of Otorhinolaryngology Head and Neck Surgery, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Otorhinolaryngology Head and Neck Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Institute of Otolaryngology, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| |
Collapse
|
11
|
Warren B, Eberl D. What can insects teach us about hearing loss? J Physiol 2024; 602:297-316. [PMID: 38128023 DOI: 10.1113/jp281281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 12/05/2023] [Indexed: 12/23/2023] Open
Abstract
Over the last three decades, insects have been utilized to provide a deep and fundamental understanding of many human diseases and disorders. Here, we present arguments for insects as models to understand general principles underlying hearing loss. Despite ∼600 million years since the last common ancestor of vertebrates and invertebrates, we share an overwhelming degree of genetic homology particularly with respect to auditory organ development and maintenance. Despite the anatomical differences between human and insect auditory organs, both share physiological principles of operation. We explain why these observations are expected and highlight areas in hearing loss research in which insects can provide insight. We start by briefly introducing the evolutionary journey of auditory organs, the reasons for using insect auditory organs for hearing loss research, and the tools and approaches available in insects. Then, the first half of the review focuses on auditory development and auditory disorders with a genetic cause. The second half analyses the physiological and genetic consequences of ageing and short- and long-term changes as a result of noise exposure. We finish with complex age and noise interactions in auditory systems. In this review, we present some of the evidence and arguments to support the use of insects to study mechanisms and potential treatments for hearing loss in humans. Obviously, insects cannot fully substitute for all aspects of human auditory function and loss of function, although there are many important questions that can be addressed in an animal model for which there are important ethical, practical and experimental advantages.
Collapse
Affiliation(s)
- Ben Warren
- Neurogenetics Group, College of Life Sciences, University of Leicester, Leicester, UK
| | - Daniel Eberl
- Department of Biology, University of Iowa, Iowa City, IA, USA
| |
Collapse
|
12
|
Asakawa T, Yang Y, Xiao Z, Shi Y, Qin W, Hong Z, Ding D. Stumbling Blocks in the Investigation of the Relationship Between Age-Related Hearing Loss and Cognitive Impairment. Perspect Psychol Sci 2024; 19:137-150. [PMID: 37410696 DOI: 10.1177/17456916231178554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/08/2023]
Abstract
The relationship between age-related hearing loss (ARHL) and cognitive impairment (CI) remains intricate. However, there is no robust evidence from experimental or clinical studies to elucidate their relationship. The key unaddressed questions are (a) whether there is a causal effect of ARHL on CI and (b) whether efficacious treatment of ARHL (such as hearing-aid use) ameliorates CI and dementia-related behavioral symptoms. Because of several methodological and systematic flaws/challenges, rigorous verification has not been conducted. Addressing these stumbling blocks is essential to unraveling the relationship between ARHL and CI, which motivated us to undertake this review. Here, we discuss the methodological problems from the perspectives of potential confounding bias, assessments of CI and ARHL, hearing-aid use, functional-imaging studies, and animal models based on the latest information and our experiences. We also identify potential solutions for each problem from the viewpoints of clinical epidemiology. We believe that "objectivity," specifically the use of more objective behavioral assessments and new computerized technologies, may be the key to improving experimental designs for studying the relationship between ARHL and CI.
Collapse
Affiliation(s)
- Tetsuya Asakawa
- Institute of Neurology, The Third People's Hospital of Shenzhen, National Clinical Research Center for Infectious Diseases, Shenzhen, China
| | - Yunfeng Yang
- Department of Neurosurgery, The Eighth Affiliated Hospital, Sun Yat-sen University
| | - Zhenxu Xiao
- Institute of Neurology, Huashan Hospital, Fudan University
- National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University
- National Clinical Center for Neurological Disorders, Huashan Hospital, Fudan University
| | - Yirong Shi
- Department of Nursing, The Third People's Hospital of Shenzhen, National Clinical Research Center for Infectious Diseases,Shenzhen, China
| | - Wei Qin
- Department of Rehabilitation, Enshi Central Hospital, Enshi, China
| | - Zhen Hong
- Institute of Neurology, Huashan Hospital, Fudan University
- National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University
- National Clinical Center for Neurological Disorders, Huashan Hospital, Fudan University
| | - Ding Ding
- Institute of Neurology, Huashan Hospital, Fudan University
- National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University
- National Clinical Center for Neurological Disorders, Huashan Hospital, Fudan University
| |
Collapse
|
13
|
Lee YY, Ha J, Kim YS, Ramani S, Sung S, Gil ES, Choo OS, Jang JH, Choung YH. Abnormal Cholesterol Metabolism and Lysosomal Dysfunction Induce Age-Related Hearing Loss by Inhibiting mTORC1-TFEB-Dependent Autophagy. Int J Mol Sci 2023; 24:17513. [PMID: 38139347 PMCID: PMC10743727 DOI: 10.3390/ijms242417513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/07/2023] [Accepted: 12/12/2023] [Indexed: 12/24/2023] Open
Abstract
Cholesterol is a risk factor for age-related hearing loss (ARHL). However, the effect of cholesterol on the organ of Corti during the onset of ARHL is unclear. We established a mouse model for the ARHL group (24 months, n = 12) and a young group (6 months, n = 12). Auditory thresholds were measured in both groups using auditory brainstem response (ABR) at frequencies of 8, 16, and 32 kHz. Subsequently, mice were sacrificed and subjected to histological analyses, including transmission electron microscopy (TEM), H&E, Sudan Black B (SBB), and Filipin staining, as well as biochemical assays such as IHC, enzymatic analysis, and immunoblotting. Additionally, mRNA extracted from both young and aged cochlea underwent RNA sequencing. To identify the mechanism, in vitro studies utilizing HEI-OC1 cells were also performed. RNA sequencing showed a positive correlation with increased expression of genes related to metabolic diseases, cholesterol homeostasis, and target of rapamycin complex 1 (mTORC1) signaling in the ARHL group as compared to the younger group. In addition, ARHL tissues exhibited increased cholesterol and lipofuscin aggregates in the organ of Corti, lateral walls, and spiral ganglion neurons. Autophagic flux was inhibited by the accumulation of damaged lysosomes and autolysosomes. Subsequently, we observed a decrease in the level of transcription factor EB (TFEB) protein, which regulates lysosomal biosynthesis and autophagy, together with increased mTORC1 activity in ARHL tissues. These changes in TFEB and mTORC1 expression were observed in a cholesterol-dependent manner. Treatment of ARHL mice with atorvastatin, a cholesterol synthesis inhibitor, delayed hearing loss by reducing the cholesterol level and maintaining lysosomal function and autophagy by inhibiting mTORC1 and activating TFEB. The above findings were confirmed using stress-induced premature senescent House Ear Institute organ of Corti 1 (HEI-OC1) cells. The findings implicate cholesterol in the pathogenesis of ARHL. We propose that atorvastatin could prevent ARHL by maintaining lysosomal function and autophagy by inhibiting mTORC1 and activating TFEB during the aging process.
Collapse
Affiliation(s)
- Yun Yeong Lee
- Department of Otolaryngology, Ajou University School of Medicine, Suwon 16499, Republic of Korea; (Y.Y.L.); (J.H.); (Y.S.K.); (S.R.); (S.S.); (J.H.J.)
| | - Jungho Ha
- Department of Otolaryngology, Ajou University School of Medicine, Suwon 16499, Republic of Korea; (Y.Y.L.); (J.H.); (Y.S.K.); (S.R.); (S.S.); (J.H.J.)
- Department of Medical Sciences, Ajou University Graduate School of Medicine, Suwon 16499, Republic of Korea
| | - Young Sun Kim
- Department of Otolaryngology, Ajou University School of Medicine, Suwon 16499, Republic of Korea; (Y.Y.L.); (J.H.); (Y.S.K.); (S.R.); (S.S.); (J.H.J.)
| | - Sivasubramanian Ramani
- Department of Otolaryngology, Ajou University School of Medicine, Suwon 16499, Republic of Korea; (Y.Y.L.); (J.H.); (Y.S.K.); (S.R.); (S.S.); (J.H.J.)
| | - Siung Sung
- Department of Otolaryngology, Ajou University School of Medicine, Suwon 16499, Republic of Korea; (Y.Y.L.); (J.H.); (Y.S.K.); (S.R.); (S.S.); (J.H.J.)
- Department of Medical Sciences, Ajou University Graduate School of Medicine, Suwon 16499, Republic of Korea
| | - Eun Sol Gil
- Department of Otolaryngology, Ajou University School of Medicine, Suwon 16499, Republic of Korea; (Y.Y.L.); (J.H.); (Y.S.K.); (S.R.); (S.S.); (J.H.J.)
- Department of Medical Sciences, Ajou University Graduate School of Medicine, Suwon 16499, Republic of Korea
| | - Oak-Sung Choo
- Department of Otorhinolaryngology-Head and Neck Surgery, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul 07441, Republic of Korea;
| | - Jeong Hun Jang
- Department of Otolaryngology, Ajou University School of Medicine, Suwon 16499, Republic of Korea; (Y.Y.L.); (J.H.); (Y.S.K.); (S.R.); (S.S.); (J.H.J.)
| | - Yun-Hoon Choung
- Department of Otolaryngology, Ajou University School of Medicine, Suwon 16499, Republic of Korea; (Y.Y.L.); (J.H.); (Y.S.K.); (S.R.); (S.S.); (J.H.J.)
- Department of Medical Sciences, Ajou University Graduate School of Medicine, Suwon 16499, Republic of Korea
| |
Collapse
|
14
|
Boussaty EC, Tedeschi N, Novotny M, Ninoyu Y, Du E, Draf C, Zhang Y, Manor U, Scheuermann RH, Friedman R. Cochlear transcriptome analysis of an outbred mouse population (CFW). Front Cell Neurosci 2023; 17:1256619. [PMID: 38094513 PMCID: PMC10716316 DOI: 10.3389/fncel.2023.1256619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 10/11/2023] [Indexed: 12/20/2023] Open
Abstract
Age-related hearing loss (ARHL) is the most common cause of hearing loss and one of the most prevalent conditions affecting the elderly worldwide. Despite evidence from our lab and others about its polygenic nature, little is known about the specific genes, cell types, and pathways involved in ARHL, impeding the development of therapeutic interventions. In this manuscript, we describe, for the first time, the complete cell-type specific transcriptome of the aging mouse cochlea using snRNA-seq in an outbred mouse model in relation to auditory threshold variation. Cochlear cell types were identified using unsupervised clustering and annotated via a three-tiered approach-first by linking to expression of known marker genes, then using the NSForest algorithm to select minimum cluster-specific marker genes and reduce dimensional feature space for statistical comparison of our clusters with existing publicly-available data sets on the gEAR website, and finally, by validating and refining the annotations using Multiplexed Error Robust Fluorescence In Situ Hybridization (MERFISH) and the cluster-specific marker genes as probes. We report on 60 unique cell-types expanding the number of defined cochlear cell types by more than two times. Importantly, we show significant specific cell type increases and decreases associated with loss of hearing acuity implicating specific subsets of hair cell subtypes, ganglion cell subtypes, and cell subtypes within the stria vascularis in this model of ARHL. These results provide a view into the cellular and molecular mechanisms responsible for age-related hearing loss and pathways for therapeutic targeting.
Collapse
Affiliation(s)
- Ely Cheikh Boussaty
- Department of Otolaryngology, University of California, San Diego, La Jolla, CA, United States
| | - Neil Tedeschi
- J. Craig Venter Institute, La Jolla, CA, United States
| | - Mark Novotny
- J. Craig Venter Institute, La Jolla, CA, United States
| | - Yuzuru Ninoyu
- Department of Otolaryngology, University of California, San Diego, La Jolla, CA, United States
| | - Eric Du
- Department of Otolaryngology, University of California, San Diego, La Jolla, CA, United States
| | - Clara Draf
- Department of Otolaryngology, University of California, San Diego, La Jolla, CA, United States
| | - Yun Zhang
- J. Craig Venter Institute, La Jolla, CA, United States
| | - Uri Manor
- Department of Cell and Developmental Biology, University of California San Diego, Salk Institute for Biological Studies, Waitt Advanced Biophotonics Center, La Jolla, CA, United States
| | - Richard H. Scheuermann
- J. Craig Venter Institute, La Jolla, CA, United States
- Department of Pathology, University of California, San Diego, La Jolla, CA, United States
| | - Rick Friedman
- Department of Otolaryngology, University of California, San Diego, La Jolla, CA, United States
| |
Collapse
|
15
|
Behtani L, Paromov D, Moïn-Darbari K, Houde MS, Bacon BA, Maheu M, Leroux T, Champoux F. Sensory Reweighting for Postural Control in Older Adults with Age-Related Hearing Loss. Brain Sci 2023; 13:1623. [PMID: 38137071 PMCID: PMC10741952 DOI: 10.3390/brainsci13121623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/15/2023] [Accepted: 11/17/2023] [Indexed: 12/24/2023] Open
Abstract
There is growing evidence linking hearing impairments and the deterioration of postural stability in older adults. To our knowledge, however, no study to date has investigated the effect of age-related hearing loss on the sensory reweighting process during postural control. In the absence of data, much is unknown about the possible mechanisms, both deleterious and compensatory, that could underly the deterioration of postural control following hearing loss in the elderly. The aim of this study was to empirically examine sensory reweighting for postural control in older adults with age-related hearing loss as compared to older adults with normal hearing. The center of pressure of all participants was recorded using a force platform and the modified clinical test of sensory interaction and balance protocol. The results suggest that individuals with age-related hearing loss displayed increased somatosensory reliance relative to normal hearing younger adults. This increased reliance on somatosensory input does not appear to be effective in mitigating the loss of postural control, probably due to the concomitant deterioration of tactile and proprioceptive sensitivity and acuity associated with aging. Beyond helping to further define the role of auditory perception in postural control, these results further the understanding of sensory-related mechanisms associated with postural instability in older adults.
Collapse
Affiliation(s)
- Lydia Behtani
- School of Speech Language Pathology and Audiology, Faculty of Medecine, Université de Montréal, Montréal, QC H3T 1J4, Canada; (L.B.); (D.P.); (K.M.-D.); (M.-S.H.); (M.M.); (T.L.)
- Centre de Recherche de L’institut Universitaire de Gériatrie de Montréal (CRIUGM), Montréal, QC H3W 1W4, Canada
| | - Daniel Paromov
- School of Speech Language Pathology and Audiology, Faculty of Medecine, Université de Montréal, Montréal, QC H3T 1J4, Canada; (L.B.); (D.P.); (K.M.-D.); (M.-S.H.); (M.M.); (T.L.)
- Centre de Recherche de L’institut Universitaire de Gériatrie de Montréal (CRIUGM), Montréal, QC H3W 1W4, Canada
| | - Karina Moïn-Darbari
- School of Speech Language Pathology and Audiology, Faculty of Medecine, Université de Montréal, Montréal, QC H3T 1J4, Canada; (L.B.); (D.P.); (K.M.-D.); (M.-S.H.); (M.M.); (T.L.)
| | - Marie-Soleil Houde
- School of Speech Language Pathology and Audiology, Faculty of Medecine, Université de Montréal, Montréal, QC H3T 1J4, Canada; (L.B.); (D.P.); (K.M.-D.); (M.-S.H.); (M.M.); (T.L.)
| | - Benoit Antoine Bacon
- Department of Psychology, Faculty of Art and Science, University of British Columbia, Vancouver, BC V6T 1Z4, Canada;
| | - Maxime Maheu
- School of Speech Language Pathology and Audiology, Faculty of Medecine, Université de Montréal, Montréal, QC H3T 1J4, Canada; (L.B.); (D.P.); (K.M.-D.); (M.-S.H.); (M.M.); (T.L.)
- Institut Universitaire Sur la Réadaptation en Déficience Physique de Montréal (IURDPM), Pavillon Laurier, CIUSSS du Centre-Sud-de-l’Île-de-Montréal, Montréal, QC H2H 2N8, Canada
| | - Tony Leroux
- School of Speech Language Pathology and Audiology, Faculty of Medecine, Université de Montréal, Montréal, QC H3T 1J4, Canada; (L.B.); (D.P.); (K.M.-D.); (M.-S.H.); (M.M.); (T.L.)
| | - François Champoux
- School of Speech Language Pathology and Audiology, Faculty of Medecine, Université de Montréal, Montréal, QC H3T 1J4, Canada; (L.B.); (D.P.); (K.M.-D.); (M.-S.H.); (M.M.); (T.L.)
- Centre de Recherche de L’institut Universitaire de Gériatrie de Montréal (CRIUGM), Montréal, QC H3W 1W4, Canada
| |
Collapse
|
16
|
Houmøller SS, Tsai LT, Wolff A, Kaithali Narayanan S, Hougaard DD, Gaihede M, Hammershøi D, Neher T, Godballe C, Schmidt JH. A history of occupational noise exposure is associated with steep-slope audiograms and poorer self-reported hearing-aid outcomes. Int J Audiol 2023:1-13. [PMID: 37909290 DOI: 10.1080/14992027.2023.2272558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 10/11/2023] [Indexed: 11/03/2023]
Abstract
OBJECTIVE To investigate the effects of previous occupational noise exposure in older adults with hearing loss on (1) audiometric configuration and acoustic reflex (AR) thresholds and (2) self-reported hearing abilities and hearing aid (HA) effectiveness. DESIGN A prospective observational study. STUDY SAMPLE The study included 1176 adults (≥60 years) with bilateral sensorineural hearing loss. Pure-tone audiometry, AR thresholds, and responses to the abbreviated version of the Speech, Spatial, and Qualities of Hearing Scale (SSQ12) and the International Outcome Inventory for Hearing Aids (IOI-HA) questionnaire were obtained, along with information about previous occupational noise exposure. RESULTS Greater occupational noise exposure was associated with a higher prevalence of steeply sloping audiograms in men and women and a 0.32 (95% CI: -0.57; -0.06) scale points lower mean SSQ12 total score among noise-exposed men. AR thresholds did not show a significant relation to noise-exposure status, but hearing thresholds at a given frequency were related to elevated AR thresholds at the same frequency. CONCLUSIONS A noise exposure history is linked to steeper audiograms in older adults with hearing loss as well as to poorer self-reported hearing abilities in noise-exposed men. More attention to older adults with previous noise exposure is warranted in hearing rehabilitation.
Collapse
Affiliation(s)
- Sabina Storbjerg Houmøller
- Research Unit for ORL - Head & Neck Surgery and Audiology, Odense University Hospital & University of Southern Denmark, Odense, Denmark
- OPEN, Odense Patient Data Explorative Network, Odense University Hospital, Odense, Denmark
| | - Li-Tang Tsai
- Research Unit for ORL - Head & Neck Surgery and Audiology, Odense University Hospital & University of Southern Denmark, Odense, Denmark
| | - Anne Wolff
- Department of Otolaryngology, Head and Neck Surgery and Audiology, Aalborg University Hospital, Aalborg, Denmark
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | | | - Dan Dupont Hougaard
- Department of Otolaryngology, Head and Neck Surgery and Audiology, Aalborg University Hospital, Aalborg, Denmark
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Michael Gaihede
- Department of Otolaryngology, Head and Neck Surgery and Audiology, Aalborg University Hospital, Aalborg, Denmark
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Dorte Hammershøi
- Section for AI and Sound, Department of Electronic Systems, Aalborg University, Aalborg, Denmark
| | - Tobias Neher
- Research Unit for ORL - Head & Neck Surgery and Audiology, Odense University Hospital & University of Southern Denmark, Odense, Denmark
| | - Christian Godballe
- Research Unit for ORL - Head & Neck Surgery and Audiology, Odense University Hospital & University of Southern Denmark, Odense, Denmark
- OPEN, Odense Patient Data Explorative Network, Odense University Hospital, Odense, Denmark
| | - Jesper Hvass Schmidt
- Research Unit for ORL - Head & Neck Surgery and Audiology, Odense University Hospital & University of Southern Denmark, Odense, Denmark
- OPEN, Odense Patient Data Explorative Network, Odense University Hospital, Odense, Denmark
| |
Collapse
|
17
|
Xu K, Chen S, Bai X, Xie L, Qiu Y, Liu X, Wang X, Kong W, Sun Y. Degradation of cochlear Connexin26 accelerate the development of age-related hearing loss. Aging Cell 2023; 22:e13973. [PMID: 37681746 PMCID: PMC10652327 DOI: 10.1111/acel.13973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 08/03/2023] [Accepted: 08/15/2023] [Indexed: 09/09/2023] Open
Abstract
The GJB2 gene, encoding Connexin26 (Cx26), is one of the most common causes of inherited deafness. Clinically, mutations in GJB2 cause congenital deafness or late-onset progressive hearing loss. Recently, it has been reported that Cx26 haploid deficiency accelerates the development of age-related hearing loss (ARHL). However, the roles of cochlear Cx26 in the hearing function of aged animals remain unclear. In this study, we revealed that the Cx26 expression was significantly reduced in the cochleae of aged mice, and further explored the underlying molecular mechanism for Cx26 degradation. Immunofluorescence co-localization results showed that Cx26 was internalized and degraded by lysosomes, which might be one of the important ways for Cx26 degradation in the cochlea of aged mice. Currently, whether the degradation of Cx26 in the cochlea leads directly to ARHL, as well as the mechanism of Cx26 degradation-related hearing loss are still unclear. To address these questions, we generated mice with Cx26 knockout in the adult cochlea as a model for the natural degradation of Cx26. Auditory brainstem response (ABR) results showed that Cx26 knockout mice exhibited high-frequency hearing loss, which gradually progressed over time. Pathological examination also revealed the degeneration of hair cells and spiral ganglions, which is similar to the phenotype of ARHL. In summary, our findings suggest that degradation of Cx26 in the cochlea accelerates the occurrence of ARHL, which may be a novel mechanism of ARHL.
Collapse
Affiliation(s)
- Kai Xu
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Sen Chen
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Xue Bai
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Le Xie
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Yue Qiu
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Xiao‐zhou Liu
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Xiao‐hui Wang
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Wei‐jia Kong
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Yu Sun
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and RegenerationWuhanChina
| |
Collapse
|
18
|
Shin J, Noh S, Park J, Sung JE. Syntactic complexity differentially affects auditory sentence comprehension performance for individuals with age-related hearing loss. Front Psychol 2023; 14:1264994. [PMID: 37965654 PMCID: PMC10641445 DOI: 10.3389/fpsyg.2023.1264994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 10/09/2023] [Indexed: 11/16/2023] Open
Abstract
Objectives This study examined whether older adults with hearing loss (HL) experience greater difficulties in auditory sentence comprehension compared to those with typical-hearing (TH) when the linguistic burdens of syntactic complexity were systematically manipulated by varying either the sentence type (active vs. passive) or sentence length (3- vs. 4-phrases). Methods A total of 22 individuals with HL and 24 controls participated in the study, completing sentence comprehension test (SCT), standardized memory assessments, and pure-tone audiometry tests. Generalized linear mixed effects models were employed to compare the effects of sentence type and length on SCT accuracy, while Pearson correlation coefficients were conducted to explore the relationships between SCT accuracy and other factors. Additionally, stepwise regression analyses were employed to identify memory-related predictors of sentence comprehension ability. Results Older adults with HL exhibited poorer performance on passive sentences than on active sentences compared to controls, while the sentence length was controlled. Greater difficulties on passive sentences were linked to working memory capacity, emerging as the most significant predictor for the comprehension of passive sentences among participants with HL. Conclusion Our findings contribute to the understanding of the linguistic-cognitive deficits linked to age-related hearing loss by demonstrating its detrimental impact on the processing of passive sentences. Cognitively healthy adults with hearing difficulties may face challenges in comprehending syntactically more complex sentences that require higher computational demands, particularly in working memory allocation.
Collapse
Affiliation(s)
| | | | | | - Jee Eun Sung
- Department of Communication Disorders, Ewha Womans University, Seoul, Republic of Korea
| |
Collapse
|
19
|
Feng M, Zhou X, Hu Y, Zhang J, Yang T, Chen Z, Yuan W. Comprehensive Transcriptomic Profiling of m6A Modification in Age-Related Hearing Loss. Biomolecules 2023; 13:1537. [PMID: 37892219 PMCID: PMC10605720 DOI: 10.3390/biom13101537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 09/27/2023] [Accepted: 10/07/2023] [Indexed: 10/29/2023] Open
Abstract
Age-related hearing loss (ARHL), also known as presbycusis, is one of the most common neurodegenerative disorders in elderly individuals and has a prevalence of approximately 70-80% among individuals aged 65 and older. As ARHL is an intricate and multifactorial disease, the exact pathogenesis of ARHL is not fully understood. There is evidence that transcriptional dysregulation mediated by epigenetic modifications is widespread in ARHL. However, the potential role of N6-methyladenosine (m6A) modification, as a crucial component of epigenetics, in ARHL progression remains unclear. In this study, we confirmed that the downregulation of m6A modification in cochlear tissues is related to ARHL and found that the expression of the m6A methylation regulators Wilms tumour suppressor-1-associated protein (WTAP), methyltransferase-like 3 (METTL3), ALKB homologous protein 5 (ALKBH5) and fat mass and obesity-associated protein (FTO) is decreased significantly at the mRNA and protein levels in ARHL mice. Then, we used methylated RNA immunoprecipitation sequencing (MeRIP-Seq) and RNA sequencing (RNA-Seq) to identify the differentially m6A-methylated genes in the cochlear tissues of ARHL mice. A total of 3438 genes with differential m6A methylation were identified, of which 1332 genes were m6A-hypermethylated and 2106 genes were m6A-hypomethylated in the ARHL group compared to the control group according to MeRIP-seq. Further joint analysis of RNA-Seq and MeRIP-Seq data showed that 262 genes had significant differences in both mRNA expression and m6A methylation. GO and KEGG analyses indicated that 262 unique genes were enriched mainly in the PI3K-AKT signalling pathway. In conclusion, the results of this study reveal differential m6A methylation patterns in the cochlear tissues of ARHL mice, providing a theoretical basis for further study of the pathogenesis of ARHL and potential therapeutic strategies.
Collapse
Affiliation(s)
- Menglong Feng
- Chongqing Medical University, Chongqing 400016, China
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
- Chongqing School, University of Chinese Academy of Sciences, Chongqing 400714, China
- Department of Otolaryngology & Head and Neck, Chongqing General Hospital, Chongqing 401147, China
| | - Xiaoqing Zhou
- Department of Otolaryngology & Head and Neck, Chongqing General Hospital, Chongqing 401147, China
| | - Yaqin Hu
- Department of Otolaryngology & Head and Neck, Chongqing General Hospital, Chongqing 401147, China
| | - Juhong Zhang
- Department of Otolaryngology & Head and Neck, Chongqing General Hospital, Chongqing 401147, China
| | - Ting Yang
- Chongqing Medical University, Chongqing 400016, China
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
- Chongqing School, University of Chinese Academy of Sciences, Chongqing 400714, China
- Department of Otolaryngology & Head and Neck, Chongqing General Hospital, Chongqing 401147, China
| | - Zhiji Chen
- Department of Otolaryngology & Head and Neck, Chongqing General Hospital, Chongqing 401147, China
| | - Wei Yuan
- Chongqing Medical University, Chongqing 400016, China
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
- Chongqing School, University of Chinese Academy of Sciences, Chongqing 400714, China
- Department of Otolaryngology & Head and Neck, Chongqing General Hospital, Chongqing 401147, China
| |
Collapse
|
20
|
Zhang Y, Lin G, Xue N, Wang Y, Du T, Liu H, Xiong W, Shang W, Wu H, Song L. Differential outcomes of high-fat diet on age-related rescaling of cochlear frequency place coding. FASEB J 2023; 37:e23167. [PMID: 37651093 DOI: 10.1096/fj.202300457rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 08/01/2023] [Accepted: 08/14/2023] [Indexed: 09/01/2023]
Abstract
Auditory frequency coding is place-specific, which depends on the mechanical coupling of the basilar membrane-outer hair cell (OHC)-tectorial membrane network. Prestin-based OHC electromotility improves cochlear frequency selectivity and sensitivity. Cochlear amplification determines the frequency coding wherein discrete sound frequencies find a 'best' place along the cochlear length. Loss of OHC is the leading cause of age-related hearing loss (ARHL) and is the most common cause of sensorineural hearing loss and compromised speech perception. Lipid interaction with Prestin impacts OHC function. It has been established that high-fat diet (HFD) is associated with ARHL. To determine whether genetic background and metabolism preserve cochlear frequency place coding, we examined the effect of HFD in C57BL/6J (B6) and CBA/CaJ (CBA) on ARHL.We found a significant rescuing effect on ARHL in aged B6 HFD cohort. Prestin levels and cell sizes were better maintained in the experimental B6-HFD group. We also found that distortion product otoacoustic emission (DPOAE) group delay measurement was preserved, which suggested stable frequency place coding. In contrast, the response to HFD in the CBA cohort was modest with no appreciable benefit to hearing threshold. Notably, group delay was shortened with age along with the control. In addition, the frequency dependent OHC nonlinear capacitance gradient was most pronounced at young age but decreased with age. Cochlear RNA-seq analysis revealed differential TRPV1 expression and lipid homeostasis. Activation of TRPV1 and downregulation of arachidonic acid led to downregulation of inflammatory response in B6 HFD, which protects the cochlea from ARHL. The genetic background and metabolic state-derived changes in OHC morphology and function collectively contribute to a redefined cochlear frequency place coding and improved age-related pitch perception.
Collapse
Affiliation(s)
- Yu Zhang
- Department of Otolaryngology, Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai, China
| | - Guotong Lin
- Department of Otolaryngology, Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai, China
| | - Na Xue
- Department of Otolaryngology, Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai, China
| | - Yi Wang
- School of Life Sciences, Tsinghua University, Beijing, China
| | - Tingting Du
- Department of Otolaryngology, Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai, China
| | - Huihui Liu
- Department of Otolaryngology, Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai, China
| | - Wei Xiong
- Chinese Institute for Brain Research, Beijing, China
| | - Wei Shang
- Navy Clinical Medical School, Anhui Medical University, Hefei, China
- In Vitro Fertility (IVF) Center Department of Obstetrics and Gynecology, the Sixth Medical Center of PLA General Hospital, Beijing, China
- Department of Obstetrics and Gynecology, Chinese PLA General Hospital, Beijing, China
| | - Hao Wu
- Department of Otolaryngology, Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai, China
| | - Lei Song
- Department of Otolaryngology, Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai, China
| |
Collapse
|
21
|
Rahne T, Wagner TM, Kopsch AC, Plontke SK, Wagner L. Influence of Age on Speech Recognition in Noise and Hearing Effort in Listeners with Age-Related Hearing Loss. J Clin Med 2023; 12:6133. [PMID: 37834776 PMCID: PMC10573265 DOI: 10.3390/jcm12196133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 09/20/2023] [Accepted: 09/20/2023] [Indexed: 10/15/2023] Open
Abstract
The aim of this study was to measure how age affects the speech recognition threshold (SRT50) of the Oldenburg Sentence Test (OLSA) and the listening effort at the corresponding signal-to-noise ratio (SNRcut). The study also investigated the effect of the spatial configuration of sound sources and noise signals on SRT50 and SNRcut. To achieve this goal, the study used olnoise and icra5 noise presented from one or more spatial locations from the front and back. Ninety-nine participants with age-related hearing loss in the 18-80 years age range, specifically in the 18-30, 31-40, 41-50, 51-60, 61-70, and 71-80 age groups, participated in this study. Speech recognition and listening effort in noise were measured and compared between the different age groups, different spatial sound configurations and noise signals. Speech recognition in noise decreased with age and became significant from the age group of 50-51. The decrease in SRT50 with age was greater for icra5 noise than for olnoise. For all age groups, SRT50 and SNRcut were better for icra5 noise than for olnoise. The measured age-related reference data for SRT50 and SNRcut can be used in further studies in listeners with age-related hearing loss and hearing aid or implant users.
Collapse
|
22
|
Ying G, Zhao G, Xu X, Su S, Xie X. Association of age-related hearing loss with cognitive impairment and dementia: an umbrella review. Front Aging Neurosci 2023; 15:1241224. [PMID: 37790283 PMCID: PMC10543744 DOI: 10.3389/fnagi.2023.1241224] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 08/30/2023] [Indexed: 10/05/2023] Open
Abstract
Background Hearing loss, cognitive impairment and dementia have become common problems for older adults. Currently, systematic reviews and meta-analyses of the association between age-related hearing loss (ARHL) with cognitive impairment and dementia may have inconsistent results. To explore and validate the association between ARHL with cognitive impairment and dementia through summarizing and evaluating existing evidence. Methods From inception to February 01, 2023, PubMed, Web of Science, Embase, and Cochrane Library databases were systematically searched. AMSTAR 2 was used to evaluate methodological quality and GRADE system was used to evaluate evidence quality. We summarized the basic characteristics of the included studies and extracted effect data for ARHL with cognitive impairment and dementia. Forest plots were used to describe the relative risk associated with ARHL and cognitive impairment, and the relative risk associated with ARHL and dementia, respectively. Results A total of 11 systematic reviews and meta-analyses met the inclusion criteria. Overall, the methodological quality of the included SRs/MAs was moderate and the quality of the evidence was low. The combined results found that the pooled risk ratio of ARHL and cognitive impairment was 1.30 (random-effects; 95% CI 1.16 to 1.45), and the pooled risk ratio of ARHL and dementia was 1.59 (random-effects; 95% CI 1.34 to 1.90). Conclusion Based on the evidence reported in this umbrella review, age-related hearing loss is significantly associated with cognitive impairment and dementia. Hearing loss may be a high risk factor for cognitive impairment and dementia in older adults.
Collapse
Affiliation(s)
- Guo Ying
- Department of Acupuncture and Moxibustion, The Second Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, China
| | - Guangran Zhao
- Department of Acupuncture and Moxibustion, The Second Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, China
| | - Xianpeng Xu
- Department of Otolaryngology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Su Su
- Department of Acupuncture and Moxibustion, Zhuhai Hospital of Integrated of Traditional Chinese Medicine and Western Medicine, Zhuhai, China
| | - Xin Xie
- Department of Rehabilitation, Heilongjiang Provincial Hospital, Harbin, China
| |
Collapse
|
23
|
Heeringa AN, Teske F, Ashida G, Köppl C. Cochlear aging disrupts the correlation between spontaneous rate- and sound-level coding in auditory nerve fibers. J Neurophysiol 2023; 130:736-750. [PMID: 37584075 DOI: 10.1152/jn.00090.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 07/12/2023] [Accepted: 08/10/2023] [Indexed: 08/17/2023] Open
Abstract
The spiking activity of auditory nerve fibers (ANFs) transmits information about the acoustic environment from the cochlea to the central auditory system. Increasing age leads to degeneration of cochlear tissues, including the sensory hair cells and stria vascularis. Here, we aim to identify the functional effects of such age-related cochlear pathologies of ANFs. Rate-level functions (RLFs) were recorded from single-unit ANFs of young adult (n = 52, 3-12 months) and quiet-aged (n = 24, >36 months) Mongolian gerbils of either sex. RLFs were used to determine sensitivity and spontaneous rates (SRs) and were classified into flat-saturating, sloping-saturating, and straight categories, as previously established. A physiologically based cochlear model, adapted for the gerbil, was used to simulate the effects of cochlear degeneration on ANF physiology. In ANFs tuned to low frequencies (<3.5 kHz), SR was lower in those of aged gerbils, while an age-related loss of low-SR fibers was evident in ANFs tuned to high frequencies. These changes in SR distribution did not affect the typical SR versus sensitivity correlation. The distribution of RLF types among low-SR fibers, however, shifted toward that of high-SR fibers, specifically showing more fast-saturating and fewer sloping-saturating RLFs. A modeled striatal degeneration, which affects the combined inner hair cell and synaptic output, reduced SR but left RLF type unchanged. An additional reduced basilar membrane gain, which decreased sensitivity, explained the changed RLF types. Overall, the data indicated age-related changes in the characteristics of single ANFs that blurred the established relationships between SR and RLF types.NEW & NOTEWORTHY Auditory nerve fibers, which connect the cochlea to the central auditory system, change their encoding of sound level in aged gerbils. In addition to a general shift to higher levels, indicative of decreased sensitivity, level coding was also differentially affected in fibers with low- and high-spontaneous rates. Loss of low-spontaneous rate fibers, combined with a general decrease of spontaneous rate, further blurs the categorization of auditory nerve fiber types in the aged gerbil.
Collapse
Affiliation(s)
- Amarins N Heeringa
- Cluster of Excellence "Hearing4all," Department of Neuroscience, School of Medicine and Health Science, Carl von Ossietzky University Oldenburg, Oldenburg, Germany
- Research Centre Neurosensory Science, Department of Neuroscience, School of Medicine and Health Science, Carl von Ossietzky University Oldenburg, Oldenburg, Germany
| | - Fiona Teske
- Research Centre Neurosensory Science, Department of Neuroscience, School of Medicine and Health Science, Carl von Ossietzky University Oldenburg, Oldenburg, Germany
| | - Go Ashida
- Cluster of Excellence "Hearing4all," Department of Neuroscience, School of Medicine and Health Science, Carl von Ossietzky University Oldenburg, Oldenburg, Germany
- Research Centre Neurosensory Science, Department of Neuroscience, School of Medicine and Health Science, Carl von Ossietzky University Oldenburg, Oldenburg, Germany
| | - Christine Köppl
- Cluster of Excellence "Hearing4all," Department of Neuroscience, School of Medicine and Health Science, Carl von Ossietzky University Oldenburg, Oldenburg, Germany
- Research Centre Neurosensory Science, Department of Neuroscience, School of Medicine and Health Science, Carl von Ossietzky University Oldenburg, Oldenburg, Germany
| |
Collapse
|
24
|
Huang HM, Chen GS, Liu ZY, Meng QL, Li JH, Dong HW, Chen YC, Zhao F, Tang XW, Gao JL, Chen XM, Cai YX, Zheng YQ. Age-related hearing loss accelerates the decline in fast speech comprehension and the decompensation of cortical network connections. Neural Regen Res 2023; 18:1968-1975. [PMID: 36926721 DOI: 10.4103/1673-5374.361530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Patients with age-related hearing loss face hearing difficulties in daily life. The causes of age-related hearing loss are complex and include changes in peripheral hearing, central processing, and cognitive-related abilities. Furthermore, the factors by which aging relates to hearing loss via changes in auditory processing ability are still unclear. In this cross-sectional study, we evaluated 27 older adults (over 60 years old) with age-related hearing loss, 21 older adults (over 60 years old) with normal hearing, and 30 younger subjects (18-30 years old) with normal hearing. We used the outcome of the upper-threshold test, including the time-compressed threshold and the speech recognition threshold in noisy conditions, as a behavioral indicator of auditory processing ability. We also used electroencephalography to identify presbycusis-related abnormalities in the brain while the participants were in a spontaneous resting state. The time-compressed threshold and speech recognition threshold data indicated significant differences among the groups. In patients with age-related hearing loss, information masking (babble noise) had a greater effect than energy masking (speech-shaped noise) on processing difficulties. In terms of resting-state electroencephalography signals, we observed enhanced frontal lobe (Brodmann's area, BA11) activation in the older adults with normal hearing compared with the younger participants with normal hearing, and greater activation in the parietal (BA7) and occipital (BA19) lobes in the individuals with age-related hearing loss compared with the younger adults. Our functional connection analysis suggested that compared with younger people, the older adults with normal hearing exhibited enhanced connections among networks, including the default mode network, sensorimotor network, cingulo-opercular network, occipital network, and frontoparietal network. These results suggest that both normal aging and the development of age-related hearing loss have a negative effect on advanced auditory processing capabilities and that hearing loss accelerates the decline in speech comprehension, especially in speech competition situations. Older adults with normal hearing may have increased compensatory attentional resource recruitment represented by the top-down active listening mechanism, while those with age-related hearing loss exhibit decompensation of network connections involving multisensory integration.
Collapse
Affiliation(s)
- He-Mei Huang
- Department of Otolaryngology, Sun Yat-sen Memorial Hospital; Institute of Hearing and Speech-Language Science, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Gui-Sheng Chen
- Department of Otolaryngology, Sun Yat-sen Memorial Hospital; Institute of Hearing and Speech-Language Science, Sun Yat-sen University, Guangzhou; Department of Otolaryngology, Shenzhen-Shanwei Central Hospital, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Shanwei, Guangdong Province, China
| | - Zhong-Yi Liu
- Department of Radiology, Guangdong Provincial Work Injury Rehabilitation Hospital, Guangzhou, Guangdong Province, China
| | - Qing-Lin Meng
- Acoustics Lab of School of Physics and Optoelectronics and State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou, Guangdong Province, China
| | - Jia-Hong Li
- Department of Otolaryngology, Sun Yat-sen Memorial Hospital; Institute of Hearing and Speech-Language Science, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Han-Wen Dong
- Department of Otolaryngology, Sun Yat-sen Memorial Hospital; Institute of Hearing and Speech-Language Science, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Yu-Chen Chen
- Department of Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Fei Zhao
- Department of Speech and Language Therapy and Hearing Science, Cardiff Metropolitan University, Cardiff, UK
| | - Xiao-Wu Tang
- Department of Otolaryngology, Sun Yat-sen Memorial Hospital; Institute of Hearing and Speech-Language Science, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Jin-Liang Gao
- Department of Otolaryngology, Shenzhen Baoan Maternal and Child Health Hospital, Shenzhen, Guangdong Province, China
| | - Xi-Ming Chen
- Department of Otolaryngology, Shenzhen Baoan Maternal and Child Health Hospital, Shenzhen, Guangdong Province, China
| | - Yue-Xin Cai
- Department of Otolaryngology, Sun Yat-sen Memorial Hospital; Institute of Hearing and Speech-Language Science, Sun Yat-sen University, Guangzhou; Department of Otolaryngology, Shenzhen-Shanwei Central Hospital, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Shanwei, Guangdong Province, China
| | - Yi-Qing Zheng
- Department of Otolaryngology, Sun Yat-sen Memorial Hospital; Institute of Hearing and Speech-Language Science, Sun Yat-sen University, Guangzhou; Department of Otolaryngology, Shenzhen-Shanwei Central Hospital, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Shanwei, Guangdong Province, China
| |
Collapse
|
25
|
Okur MN, Sahbaz BD, Kimura R, Manor U, Patel J, Park J, Andrade L, Puligilla C, Croteau DL, Bohr VA. Long-term NAD+ supplementation prevents the progression of age-related hearing loss in mice. Aging Cell 2023; 22:e13909. [PMID: 37395319 PMCID: PMC10497810 DOI: 10.1111/acel.13909] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 05/27/2023] [Accepted: 05/31/2023] [Indexed: 07/04/2023] Open
Abstract
Age-related hearing loss (ARHL) is the most common sensory disability associated with human aging. Yet, there are no approved measures for preventing or treating this debilitating condition. With its slow progression, continuous and safe approaches are critical for ARHL treatment. Nicotinamide Riboside (NR), a NAD+ precursor, is well tolerated even for long-term use and is already shown effective in various disease models including Alzheimer's and Parkinson's disease. It has also been beneficial against noise-induced hearing loss and in hearing loss associated with premature aging. However, its beneficial impact on ARHL is not known. Using two different wild-type mouse strains, we show that long-term NR administration prevents the progression of ARHL. Through transcriptomic and biochemical analysis, we find that NR administration restores age-associated reduction in cochlear NAD+ levels, upregulates biological pathways associated with synaptic transmission and PPAR signaling, and reduces the number of orphan ribbon synapses between afferent auditory neurons and inner hair cells. We also find that NR targets a novel pathway of lipid droplets in the cochlea by inducing the expression of CIDEC and PLIN1 proteins that are downstream of PPAR signaling and are key for lipid droplet growth. Taken together, our results demonstrate the therapeutic potential of NR treatment for ARHL and provide novel insights into its mechanism of action.
Collapse
Affiliation(s)
- Mustafa N. Okur
- Section on DNA Repair, National Institute on AgingNational Institutes of HealthBaltimoreMarylandUSA
| | - Burcin Duan Sahbaz
- Section on DNA Repair, National Institute on AgingNational Institutes of HealthBaltimoreMarylandUSA
| | - Risako Kimura
- Section on DNA Repair, National Institute on AgingNational Institutes of HealthBaltimoreMarylandUSA
| | - Uri Manor
- Waitt Advanced Biophotonics CenterSalk Institute for Biological StudiesLa JollaCaliforniaUSA
| | - Jaimin Patel
- Section on DNA Repair, National Institute on AgingNational Institutes of HealthBaltimoreMarylandUSA
| | - Jae‐Hyeon Park
- Section on DNA Repair, National Institute on AgingNational Institutes of HealthBaltimoreMarylandUSA
| | - Leo Andrade
- Waitt Advanced Biophotonics CenterSalk Institute for Biological StudiesLa JollaCaliforniaUSA
| | - Chandrakala Puligilla
- Section on DNA Repair, National Institute on AgingNational Institutes of HealthBaltimoreMarylandUSA
| | - Deborah L. Croteau
- Section on DNA Repair, National Institute on AgingNational Institutes of HealthBaltimoreMarylandUSA
- Computational Biology & Genomics Core, National Institute on AgingNational Institutes of HealthBaltimoreMarylandUSA
| | - Vilhelm A. Bohr
- Section on DNA Repair, National Institute on AgingNational Institutes of HealthBaltimoreMarylandUSA
- Danish Center for Healthy AgingUniversity of CopenhagenCopenhagen NDenmark
| |
Collapse
|
26
|
Yang W, Zhao X, Chai R, Fan J. Progress on mechanisms of age-related hearing loss. Front Neurosci 2023; 17:1253574. [PMID: 37727326 PMCID: PMC10505809 DOI: 10.3389/fnins.2023.1253574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 08/14/2023] [Indexed: 09/21/2023] Open
Abstract
Age-related hearing loss, or presbycusis, is a common cause of hearing loss in elderly people worldwide. It typically presents as progressive, irreversible, and usually affects the high frequencies of hearing, with a tremendous impact on the quality of life. Presbycusis is a complex multidimensional disorder, in addition to aging, multiple factors including exposure to noise, or ototoxic agents, genetic susceptibility, metabolic diseases and lifestyle can influence the onset and severity of presbycusis. With the aging of the body, its ability to clean up deleterious substances produced in the metabolic process is weakened, and the self-protection and repair function of the body is reduced, which in turn leads to irreversible damage to the cochlear tissue, resulting in the occurrence of presbycusis. Presently, oxidative stress (OS), mitochondrial DNA damage, low-grade inflammation, decreased immune function and stem cell depletion have been demonstrated to play a critical role in developing presbycusis. The purpose of this review is to illuminate the various mechanisms underlying this age-related hearing loss, with the goal of advancing our understanding, prevention, and treatment of presbycusis.
Collapse
Affiliation(s)
- Wen Yang
- Department of Otolaryngology Head and Neck Surgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Xiaolong Zhao
- Department of Otolaryngology Head and Neck Surgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Renjie Chai
- Department of Otolaryngology Head and Neck Surgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
- State Key Laboratory of Bioelectronics, Department of Otolaryngology Head and Neck Surgery, Zhongda Hospital, School of Life Sciences and Technology, Advanced Institute for Life and Health, Jiangsu Province High-Tech Key Laboratory for Bio-Medical Research, Southeast University, Nanjing, China
- Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Jiangang Fan
- Department of Otolaryngology Head and Neck Surgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| |
Collapse
|
27
|
Ge J, Geng S, Gao Y, Ren G, Sun X, Jiang H. Construction and Effect of the Three-Level and Two-Stage Screening Mode for Age-Related Hearing Loss: A Study Based on the Community in Shanghai, China. Clin Interv Aging 2023; 18:1309-1320. [PMID: 37583570 PMCID: PMC10424679 DOI: 10.2147/cia.s423822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 08/07/2023] [Indexed: 08/17/2023] Open
Abstract
Background There is a high incidence rate of age-related hearing loss. Severe hearing loss may increase the prevalence of mental illness, cognitive impairment, and even the risk of all-cause death. Purpose Construction of the three-level and two-stage screening mode for age-related hearing loss of the community and to evaluate its effectiveness. Materials and Methods A total of 401 participants (aged 60 years or older) from five typical communities were enrolled in the study. The risk factors assessment of age-related hearing loss was completed by using a cross-sectional survey and receiver operating characteristic (ROC) curve. Multiple screening method was adopted and verified by serial and parallel tests, respectively. Based on research data, incorporate risk factors assessment, the Hearing Handicap Inventory for the Elderly Screening Version (HHIE-s) and pure tone audiometry (PTA) were used to construct the screening mode. Results Multiple screening series testing and multiple screening parallel testing, including risk factors assessment, HHIE-s, and PTA, were used for verification: the sensitivity, specificity, and Kappa index were 70.5% and 9.2%, 95.0% and 71.6%, 0.26 and 0.63, respectively. Finally, the three-level and two-stage screening mode for age-related hearing loss was established. "Three-level" was defined as the risk factors assessment/HHIE-s (high-risk population), PTA (suspect population), and comprehensive hearing loss assessment (confirmed population). "Two-stage" was defined as the population screening by general practitioner in the community and target screening by otolaryngologist of the tertiary hospitals. Conclusion The three-level and two-stage screening mode for age-related hearing loss consists of the following framework: from population screening to target screening, from suspicious diagnosis to accurate diagnosis, from primary health care to tertiary hospitals. The study objective is to structure a new secondary prevention and treatment mode for age-related hearing loss with primary health care as the core, so as to help the front-end management of healthy aging.
Collapse
Affiliation(s)
- Jianli Ge
- Department of General Practice, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200120, People’s Republic of China
| | - Shasha Geng
- Department of General Practice, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200120, People’s Republic of China
| | - Yang Gao
- Department of General Practice, Huamu Community Health Service Center, Shanghai, 201204, People’s Republic of China
| | - Guangwei Ren
- Science and Education Department, Sanlin Community Health Service Center, Shanghai, 200124, People’s Republic of China
| | - Xiaoming Sun
- Department of General Practice, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200120, People’s Republic of China
- Department of General Practice, Zhongshan Hospital, Fudan University Medical School, Shanghai, 200032, People’s Republic of China
| | - Hua Jiang
- Department of General Practice, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200120, People’s Republic of China
| |
Collapse
|
28
|
Gao M, Feng T, Zhao F, Shen J, Zheng Y, Liang J, Yang H. Cognitive reserve disorder in age-related hearing loss: cognitive cortical compensatory to auditory perceptual processing. Cereb Cortex 2023; 33:9616-9626. [PMID: 37381582 DOI: 10.1093/cercor/bhad230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 06/07/2023] [Accepted: 06/08/2023] [Indexed: 06/30/2023] Open
Abstract
The aim of this study is to ascertain the mechanisms of cognitive reserve disorder in age-related hearing loss (ARHL), to study the correlation between ARHL and cognitive decline via EEG, and to reverse the adverse remodeling of auditory-cognitive connectivity with hearing aids (HAs). In this study, 32 participants were enrolled, including 12 with ARHLs, 9 with HAs, and 11 healthy controls (HCs), to undergo EEG, Pure Tone Average (PTA), Montreal Cognitive Assessment (MoCA), and other general cognitive tests. There were the lowest MoCA in the ARHL group (P = 0.001), especially in language and abstraction. In the ARHL group, power spectral density of the gamma in right middle temporal gyrus was significantly higher than HC and HA groups, while functional connectivity between superior frontal gyrus and cingulate gyrus was weaker than HC group (P = 0.036) and HA group (P = 0.021). In the HA group, superior temporal gyrus and cuneus had higher connectivity than in the HC group (P = 0.036). In the ARHL group, DeltaTM_DTA (P = 0.042) and CTB (P = 0.011) were more frequent than in the HC group, while there was less DeltaTM_CTA (P = 0.029). PTA was found to be associated with MoCA (r = -0.580) and language (r = -0.572), DeltaTM_CTB had a likewise correlation with MoCA (r = 0.483) and language (r = 0.493), while DeltaTM_DTA was related to abstraction (r = -0.458). Cognitive cortexes compensate for worse auditory perceptual processing in ARHL, which relates to cognitive decline. The impaired functional connectivity between auditory and cognitive cortexes can be remodeled by HAs. DeltaTM may serve as a biomarker for early cognitive decline and decreased auditory speech perception in ARHL.
Collapse
Affiliation(s)
- Minqian Gao
- Department of Otolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 West of Yan Jiang Road, Guangzhou 510120, China
- Institute of Hearing and Speech-Language Science, Sun Yat-sen University, 107 West of Yan Jiang Road, Guangzhou 510120, China
- Department of Hearing and Speech-Language Science, Guangzhou Xinhua College, 19 of Hua Mei Road, Guangzhou 510520, China
| | - Tianci Feng
- Department of Otolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 West of Yan Jiang Road, Guangzhou 510120, China
| | - Fei Zhao
- Centre for Speech and Language Therapy and Hearing Science, School of Sport and Health Sciences, Cardiff Metropolitan University, Llandaff Campus, 200 Western Avenue, Cardiff CF5 2YB, United Kingdom
| | - Jingxian Shen
- Key Laboratory of Brain, Cognition and Education Science, Ministry of Education, Institute for Brain Research and Rehabilitation, South China Normal University, 55 West of Zhongshan Avenue, Guangzhou 510631, China
- Department for Neuroradiology, School of Medicine, Technical University Munich, Ismaningerstr 22, Munich 81675, Germany
| | - Yiqing Zheng
- Department of Otolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 West of Yan Jiang Road, Guangzhou 510120, China
- Institute of Hearing and Speech-Language Science, Sun Yat-sen University, 107 West of Yan Jiang Road, Guangzhou 510120, China
- Department of Hearing and Speech-Language Science, Guangzhou Xinhua College, 19 of Hua Mei Road, Guangzhou 510520, China
| | - Jiuxing Liang
- Key Laboratory of Brain, Cognition and Education Science, Ministry of Education, Institute for Brain Research and Rehabilitation, South China Normal University, 55 West of Zhongshan Avenue, Guangzhou 510631, China
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, Sun Yat-Sen University, 132 East of Waihuan Road, Guangzhou Higher Education Mega Center, Guangzhou 510006, China
| | - Haidi Yang
- Department of Otolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 West of Yan Jiang Road, Guangzhou 510120, China
- Institute of Hearing and Speech-Language Science, Sun Yat-sen University, 107 West of Yan Jiang Road, Guangzhou 510120, China
- Department of Hearing and Speech-Language Science, Guangzhou Xinhua College, 19 of Hua Mei Road, Guangzhou 510520, China
| |
Collapse
|
29
|
Zhao IY, Parial LL, Montayre J, Golub JS, Ng JHY, Sweetow RW, Chan EA, Leung AYM. Social engagement and depressive symptoms mediate the relationship between age-related hearing loss and cognitive status. Int J Geriatr Psychiatry 2023; 38:e5982. [PMID: 37587617 DOI: 10.1002/gps.5982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 08/01/2023] [Indexed: 08/18/2023]
Abstract
BACKGROUND AND OBJECTIVES Age-related hearing loss (ARHL) is the third leading cause of years lived with disability. Connections among ARHL, depressive symptoms, social engagement and cognitive status are increasingly reported but the underlying mechanisms leading to these relationships are largely unknown. Exploring these mechanisms is a worthy goal, especially in older adults. This study aimed to examine the mediating effect of social engagement and depressive symptoms on the relationship between ARHL and cognitive status. METHODS Structural equation modeling (SEM) with path analysis were performed with data from a cross-sectional study conducted in 11 community centers in 2021, which assessed older adults' intrinsic and sensory capacities using the WHO ICOPE framework. Demographic information, health profile, a binary measure of hearing capacity, depressive symptoms, social engagement, and cognitive status of participants were gathered. RESULTS A total of 304 participants were included. ARHL was positively associated with depressive symptoms (β = 0.18, p = 0.009) and negatively related to social engagement (β = -0.13, p = 0.026). Social engagement was positively associated with cognitive status (β = 0.17, p = 0.005) and negatively associated with depressive symptoms (β = -0.23, p < 0.001). Greater depressive symptoms were negatively associated with the participants' cognition (β = -0.13, p = 0.009). Both social engagement (β = -0.02, p = 0.029) and depressive symptoms (β = -0.02, p = 0.032) mediated the negative associations between ARHL and cognitive status. CONCLUSIONS Addressing hearing loss, depressive symptoms, and enhancing social engagement should be investigated as a potential means of minimizing cognitive decline. Well-designed studies are needed to comprehensively inform the clinical practice development, particularly large prospective studies that will facilitate further elucidate possible causal mechanisms behind these observed associations.
Collapse
Affiliation(s)
- Ivy Yan Zhao
- School of Nursing, The Hong Kong Polytechnic University, Hong Kong, China
- WHO Collaborating Centre for Community Health Services, School of Nursing, The Hong Kong Polytechnic University, Hong Kong, China
| | | | - Jed Montayre
- School of Nursing, The Hong Kong Polytechnic University, Hong Kong, China
- WHO Collaborating Centre for Community Health Services, School of Nursing, The Hong Kong Polytechnic University, Hong Kong, China
| | - Justin S Golub
- NewYork-Presbyterian/Columbia University Irving Medical Center, New York, New York, USA
| | - Janet Ho-Yee Ng
- Speech Therapy Unit, Department of Chinese and Bilingual Studies, The Hong Kong Polytechnic University, Hong Kong, China
| | - Robert W Sweetow
- Otolaryngology/Head and Neck Surgery, University of California San Francisco, San Francisco, California, USA
| | - Engle Angela Chan
- School of Nursing, The Hong Kong Polytechnic University, Hong Kong, China
| | - Angela Yee Man Leung
- School of Nursing, The Hong Kong Polytechnic University, Hong Kong, China
- WHO Collaborating Centre for Community Health Services, School of Nursing, The Hong Kong Polytechnic University, Hong Kong, China
| |
Collapse
|
30
|
Miwa T, Katsuno T, Wei F, Tomizawa K. Mitochondrial alterations in the cochlea of Cdk5rap1-knockout mice with age-related hearing loss. FEBS Open Bio 2023; 13:1365-1374. [PMID: 37258461 PMCID: PMC10315731 DOI: 10.1002/2211-5463.13655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 05/08/2023] [Accepted: 05/30/2023] [Indexed: 06/02/2023] Open
Abstract
Previous studies have revealed that age-related hearing loss (AHL) in Cdk5 regulatory subunit-associated protein 1 (Cdk5rap1)-knockout mice is associated with pathology in the cochlea. Here, we aimed to identify mitochondrial alterations in the cochlea of Cdk5rap1-knockout mice with AHL. Mitochondria in the spiral ganglion neurons (SGNs) and hair cells (HCs) were normal despite senescence; however, the mitochondria of types I, II, and IV spiral ligament fibrocytes were ballooned, damaged, and ballooned, respectively, in the stria vascularis. Our results suggest that the accumulation of dysfunctional mitochondria in the lateral wall, rather than the loss of HCs and SGNs, leads to the onset of AHL. Our results provide valuable information regarding the underlying mechanisms of AHL and the relationship between aberrant tRNA modification-induced hearing loss and mitochondrial dysfunction.
Collapse
Affiliation(s)
- Toru Miwa
- Department of Otolaryngology‐Head and Neck Surgery, Graduate School of MedicineKyoto UniversityJapan
- Department of Otolaryngology‐Head and Neck SurgeryOsaka Metropolitan UniversityJapan
| | - Tatsuya Katsuno
- Department of Otolaryngology‐Head and Neck SurgeryOsaka Metropolitan UniversityJapan
| | - Fan‐Yan Wei
- Department of Molecular Physiology, Faculty of Life SciencesKumamoto UniversityJapan
- Department of Modomics Biology and Medicine, Institute of Development, Aging and CancerTohoku UniversitySendaiJapan
| | - Kazuhito Tomizawa
- Department of Molecular Physiology, Faculty of Life SciencesKumamoto UniversityJapan
| |
Collapse
|
31
|
Guerreiro MJS, Puschmann S, Eck J, Rienäcker F, Van Gerven PWM, Thiel CM. The effect of hearing loss on age-related differences in neural distinctiveness. Neuropsychol Dev Cogn B Aging Neuropsychol Cogn 2023:1-19. [PMID: 37306610 DOI: 10.1080/13825585.2023.2223904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Age differences in cognitive performance have been shown to be overestimated if age-related hearing loss is not taken into account. Here, we investigated the role of age-related hearing loss on age differences in functional brain organization by assessing its impact on previously reported age differences in neural differentiation. To this end, we analyzed the data of 36 younger adults, 21 older adults with clinically normal hearing, and 21 older adults with mild-to-moderate hearing loss who had taken part in a functional localizer task comprising visual (i.e., faces, scenes) and auditory stimuli (i.e., voices, music) while undergoing functional magnetic resonance imaging. Evidence for reduced neural distinctiveness in the auditory cortex was observed only in older adults with hearing loss relative to younger adults, whereas evidence for reduced neural distinctiveness in the visual cortex was observed both in older adults with normal hearing and in older adults with hearing loss relative to younger adults. These results indicate that age-related dedifferentiation in the auditory cortex is exacerbated by age-related hearing loss.
Collapse
Affiliation(s)
- Maria J S Guerreiro
- Biological Psychology, Department of Psychology, School of Medicine and Health Sciences, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
- Cluster of Excellence "Hearing4all", Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
| | - Sebastian Puschmann
- Biological Psychology, Department of Psychology, School of Medicine and Health Sciences, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
| | - Judith Eck
- Department of Cognitive Neuroscience, Faculty of Psychology and Neuroscience, Maastricht University, Maastricht, The Netherlands
| | - Franziska Rienäcker
- Department of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, Maastricht, The Netherlands
| | - Pascal W M Van Gerven
- Department of Educational Development & Research, School of Health Professions Education (SHE), Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands
| | - Christiane M Thiel
- Biological Psychology, Department of Psychology, School of Medicine and Health Sciences, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
- Cluster of Excellence "Hearing4all", Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
| |
Collapse
|
32
|
Boussaty EC, Tedeschi N, Novotny M, Ninoyu Y, Du E, Draf C, Zhang Y, Manor U, Scheuermann RH, Friedman R. Cochlear transcriptome analysis of an outbred mouse population (CFW). bioRxiv 2023:2023.02.15.528661. [PMID: 36824745 PMCID: PMC9948975 DOI: 10.1101/2023.02.15.528661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Age-related hearing loss (ARHL) is the most common cause of hearing loss and one of the most prevalent conditions affecting the elderly worldwide. Despite evidence from our lab and others about its polygenic nature, little is known about the specific genes, cell types and pathways involved in ARHL, impeding the development of therapeutic interventions. In this manuscript, we describe, for the first time, the complete cell-type specific transcriptome of the aging mouse cochlea using snRNA-seq in an outbred mouse model in relation to auditory threshold variation. Cochlear cell types were identified using unsupervised clustering and annotated via a three-tiered approach - first by linking to expression of known marker genes, then using the NS-Forest algorithm to select minimum cluster-specific marker genes and reduce dimensional feature space for statistical comparison of our clusters with existing publicly-available data sets on the gEAR website (https://umgear.org/), and finally, by validating and refining the annotations using Multiplexed Error Robust Fluorescence In Situ Hybridization (MERFISH) and the cluster-specific marker genes as probes. We report on 60 unique cell-types expanding the number of defined cochlear cell types by more than two times. Importantly, we show significant specific cell type increases and decreases associated with loss of hearing acuity implicating specific subsets of hair cell subtypes, ganglion cell subtypes, and cell subtypes withing the stria vascularis in this model of ARHL. These results provide a view into the cellular and molecular mechanisms responsible for age-related hearing loss and pathways for therapeutic targeting.
Collapse
Affiliation(s)
| | | | | | - Yuzuru Ninoyu
- Department of Otolaryngology, University of California, San Diego, CA
| | - Eric Du
- Department of Otolaryngology, University of California, San Diego, CA
| | - Clara Draf
- Department of Otolaryngology, University of California, San Diego, CA
| | - Yun Zhang
- J. Craig Venter Institute, La Jolla, CA
| | - Uri Manor
- Salk Institute for Biological Studies, Waitt Advanced Biophotonics Center, La Jolla, CA, United States
| | - Richard H. Scheuermann
- J. Craig Venter Institute, La Jolla, CA
- Department of Pathology, University of California, San Diego, CA
| | - Rick Friedman
- Department of Otolaryngology, University of California, San Diego, CA
| |
Collapse
|
33
|
Tan WJT, Santos-Sacchi J, Tonello J, Shanker A, Ivanova AV. Pharmacological Modulation of Energy and Metabolic Pathways Protects Hearing in the Fus1/Tusc2 Knockout Model of Mitochondrial Dysfunction and Oxidative Stress. Antioxidants (Basel) 2023; 12:1225. [PMID: 37371955 DOI: 10.3390/antiox12061225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/23/2023] [Accepted: 05/31/2023] [Indexed: 06/29/2023] Open
Abstract
Tightly regulated and robust mitochondrial activities are critical for normal hearing. Previously, we demonstrated that Fus1/Tusc2 KO mice with mitochondrial dysfunction exhibit premature hearing loss. Molecular analysis of the cochlea revealed hyperactivation of the mTOR pathway, oxidative stress, and altered mitochondrial morphology and quantity, suggesting compromised energy sensing and production. Here, we investigated whether the pharmacological modulation of metabolic pathways using rapamycin (RAPA) or 2-deoxy-D-glucose (2-DG) supplementation can protect against hearing loss in female Fus1 KO mice. Additionally, we aimed to identify mitochondria- and Fus1/Tusc2-dependent molecular pathways and processes critical for hearing. We found that inhibiting mTOR or activating alternative mitochondrial energetic pathways to glycolysis protected hearing in the mice. Comparative gene expression analysis revealed the dysregulation of critical biological processes in the KO cochlea, including mitochondrial metabolism, neural and immune responses, and the cochlear hypothalamic-pituitary-adrenal axis signaling system. RAPA and 2-DG mostly normalized these processes, although some genes showed a drug-specific response or no response at all. Interestingly, both drugs resulted in a pronounced upregulation of critical hearing-related genes not altered in the non-treated KO cochlea, including cytoskeletal and motor proteins and calcium-linked transporters and voltage-gated channels. These findings suggest that the pharmacological modulation of mitochondrial metabolism and bioenergetics may restore and activate processes critical for hearing, thereby protecting against hearing loss.
Collapse
Affiliation(s)
- Winston J T Tan
- Department of Physiology, Faculty of Medical and Health Sciences, The University of Auckland, Auckland 1023, New Zealand
- Department of Surgery (Otolaryngology), Yale University School of Medicine, New Haven, CT 06510, USA
| | - Joseph Santos-Sacchi
- Department of Surgery (Otolaryngology), Yale University School of Medicine, New Haven, CT 06510, USA
| | - Jane Tonello
- School of Medicine, Meharry Medical College, Nashville, TN 37208, USA
| | - Anil Shanker
- School of Medicine, Meharry Medical College, Nashville, TN 37208, USA
| | - Alla V Ivanova
- School of Graduate Studies and Research, Meharry Medical College, Nashville, TN 37208, USA
| |
Collapse
|
34
|
Thai-Van H, Mosnier I, Dejean F, Ambert-Dahan E, Bakhos D, Belmin J, Bonnard D, Borel S, Ceccato JC, Coez A, Damien M, Del Rio M, El Yagoubi M, Genin A, Gros A, Harichaux M, Idriss S, Ionescu E, Joly CA, Salmon PK, Marianowski R, Marx M, Mom T, Parietti-Winkler C, Potier M, Renard C, Roman S, Roy T, Tronche S, Venail F, Vincent C, Reynard P. Early management of presbycusis: recommendations from the French Society of Otorhinolaryngology and Head and Neck Surgery, the French Society of Audiology, and the French Society of Geriatrics and Gerontology. Geriatr Psychol Neuropsychiatr Vieil 2023:1-11. [PMID: 37170803 DOI: 10.1684/pnv.2023.1094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
INTRODUCTION Presbycusis is the physiological decrease in hearing due to advancing age and begins well before the sixth decade. These recommendations recall the principles of early diagnosis of presbycusis and the means of optimal rehabilitation as soon as the first symptoms appear. MATERIAL AND METHODS The recommendations are based on a systematic analysis of the literature carried out by a multidisciplinary group of ENT physicians, audiologists, geriatricians and hearing specialists from all over France. They are classified as grade A, B, C or professional agreement according to a decreasing level of scientific evidence. RESULTS The diagnosis of presbycusis is more difficult at the beginning of its evolution but a certain number of tools are available for its early diagnosis and its face-to-face or remote management. CONCLUSION In the case of a clinical profile suggestive of presbycusis in a young subject, especially if there are several family cases, it is recommended to propose a genetic investigation. Free-field speech audiometry in noise is recommended to measure intelligibility in a realistic environment. Questionnaires in addition to audiometric tests would allow the best assessment of the patient's disability. Hearing rehabilitation with a hearing aid or cochlear implant may slow or prevent cognitive decline. Combined auditory and cognitive rehabilitation should be offered regardless of the time since the hearing was fitting. It is recommended to integrate programs accessible via smartphones, tablets or the Internet, that include different training domains to complement face-to-face sessions.
Collapse
Affiliation(s)
- Hung Thai-Van
- Service d'audiologie et d'explorations otoneurologiques, CHU de Lyon, Hôpital Édouard-Herriot, Lyon, France, Claude-Bernard University Lyon 1, Institut de l'audition, Institut Pasteur, Inserm, Paris, France
| | - Isabelle Mosnier
- Institut de l'audition, Institut Pasteur, Inserm, Paris, France, ORL Department, Ile de France reference centre for cochlear and brainstem implants in adults, Pitié-Salpêtrière Hospital Group, Sorbonne University, AP -HP, Paris, France
| | | | - Emmanuelle Ambert-Dahan
- ORL Department, Ile de France reference centre for cochlear and brainstem implants in adults, Pitié-Salpêtrière Hospital Group, Sorbonne University, AP -HP, Paris, France
| | - David Bakhos
- ENT Department, CHU de Tours, iBrain, Inserm U1253, Université François- Rabelais, Tours, France
| | - Joël Belmin
- AP-HP, University Hospitals Pitié- Salpêtrière - Charles-Foix, Department of Geriatrics with a cardiological and neurological orientation, Ivry-sur-Seine, Sorbonne University, Paris, France
| | | | - Stéphanie Borel
- ORL Department, Ile de France reference centre for cochlear and brainstem implants in adults, Pitié-Salpêtrière Hospital Group, Sorbonne University, AP -HP, Paris, France
| | - Jean-Charles Ceccato
- Institute for Neurosciences of Montpellier, Inserm U1298, Centre de recherche et de formation en audioprothèse, University of Montpellier, Montpellier, France
| | - Arnaud Coez
- Institut de l'audition, Institut Pasteur, Inserm, Paris, France
| | - Maxime Damien
- Service d'audiologie et d'explorations otoneurologiques, CHU de Lyon, Hôpital Édouard-Herriot, Lyon, France, Claude-Bernard University Lyon 1, Institut de l'audition, Institut Pasteur, Inserm, Paris, France
| | | | | | | | - Auriane Gros
- ORL Department, Centre mémoire ressources et recherche, CHU de Nice, Institut Claude-Pompidou, Nice, France
| | | | - Samar Idriss
- Service d'audiologie et d'explorations otoneurologiques, CHU de Lyon, Hôpital Édouard-Herriot, Lyon, France
| | - Eugen Ionescu
- Service d'audiologie et d'explorations otoneurologiques, CHU de Lyon, Hôpital Édouard-Herriot, Lyon, France, Institut de l'audition, Institut Pasteur, Inserm, Paris, France
| | - Charles-Alexandre Joly
- Service d'audiologie et d'explorations otoneurologiques, CHU de Lyon, Hôpital Édouard-Herriot, Lyon, France, Institut de l'audition, Institut Pasteur, Inserm, Paris, France
| | | | - Rémi Marianowski
- ORL Department, CHU de Brest, Laboratoire de neurobiologie, UA 4685, Brest, France
| | - Mathieu Marx
- Department of Otology and Otoneurology, Hôpital Pierre-Paul-Riquet, CHU Toulouse Purpan, Toulouse, France
| | - Thierry Mom
- ORL Department, CHU d'Estaing, Clermont-Ferrand, France
| | | | | | - Christian Renard
- Department of Otology and Otoneurology, Salengro Hospital, University of Lille, Lille, France
| | - Stéphane Roman
- ORL Department, Hôpital de la Timone et de la Conception, Marseille, France
| | | | | | - Frédéric Venail
- Otology and Otoneurology unit, ORL Department, CHU Gui-de-Chauliac, Montpellier, France
| | - Christophe Vincent
- Department of Otology and Otoneurology, Salengro Hospital, University of Lille, Lille, France
| | - Pierre Reynard
- Service d'audiologie et d'explorations otoneurologiques, CHU de Lyon, Hôpital Édouard-Herriot, Lyon, France, Claude-Bernard University Lyon 1, Institut de l'audition, Institut Pasteur, Inserm, Paris, France
| |
Collapse
|
35
|
Wang M, Zhang C, Lin S, Xie R. Dendritic Degeneration and Altered Synaptic Innervation of a Central Auditory Neuron During Age-related Hearing Loss. Neuroscience 2023; 514:25-37. [PMID: 36738912 PMCID: PMC9992229 DOI: 10.1016/j.neuroscience.2023.01.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 01/08/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023]
Abstract
Cellular morphology and synaptic configuration are key determinants of neuronal function and are often modified under pathological conditions. In the first nucleus of the central auditory system, the cochlear nucleus (CN), principal bushy neurons specialize in processing temporal information of sound critical for hearing. These neurons alter their physiological properties during aging that contribute to age-related hearing loss (ARHL). The structural basis of such changes remains unclear, especially age-related modifications in their dendritic morphology and the innervating auditory nerve (AN) synapses. Using young (2-5 months) and aged (28-33 months) CBA/CaJ mice of either sex, we filled individual bushy neurons with fluorescent dye in acute brain slices to characterize their dendritic morphology, followed by immunostaining against vesicular glutamate transporter 1 (VGluT1) and calretinin (CR) to identify innervating AN synapses. We found that dendritic morphology of aged bushy neurons had significantly reduced complexity, suggesting age-dependent dendritic degeneration, especially in neurons with predominantly non-CR-expressing synapses on the soma. These dendrites were innervated by AN bouton synapses, which were predominantly non-CR-expressing in young mice but had increased proportion of CR-expressing synapses in old mice. While somatic AN synapses degenerated substantially with age, as quantified by VGluT1-labeled puncta volume, no significant difference was observed in the total volume of dendritic synapses between young and old mice. Consequently, synaptic density on dendrites was significantly higher in old mice. The findings suggest that dendritic degeneration and altered synaptic innervation in bushy neurons during aging may underlie their changed physiological activity and contribute to the development of ARHL.
Collapse
Affiliation(s)
- Meijian Wang
- Department of Otolaryngology, The Ohio State University, Columbus, OH, USA
| | - Chuangeng Zhang
- Department of Otolaryngology, The Ohio State University, Columbus, OH, USA
| | - Shengyin Lin
- Department of Otolaryngology, The Ohio State University, Columbus, OH, USA
| | - Ruili Xie
- Department of Otolaryngology, The Ohio State University, Columbus, OH, USA; Department of Neuroscience, The Ohio State University, Columbus, OH, USA.
| |
Collapse
|
36
|
Gürkan S, Mungan Durankaya S. The effect of sensorineural hearing loss on central auditory processing of signals in noise in older adults. Neuroreport 2023; 34:249-254. [PMID: 36789840 PMCID: PMC10516166 DOI: 10.1097/wnr.0000000000001886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 01/16/2023] [Indexed: 02/16/2023]
Abstract
OBJECTIVES The study aimed to explore the effect of sensorineural hearing loss on the central auditory processing of signals in noise using cortical auditory evoked potentials (CAEPs) in a cohort of older adults. DESIGN Three groups of individuals participated in the study. Each group included 33 older adults with normal hearing, those with mild hearing loss and those with moderate hearing loss. N1-P2 peaks of CAEPs by speech stimuli in silent conditions and with varying sound pressure levels of background noise were recorded. CAEP latencies, amplitudes and relative changes in CAEP amplitudes as a function of decreasing signal-to-noise ratios (SNR) in three groups were analyzed using the mixed analysis of variance method. RESULTS There was a significant main effect of SNR on all CAEP components, as well as significant main effects of hearing status on N1 latencies, amplitudes and relative changes in N1 amplitudes. A significant interaction was found between hearing status and SNR for relative changes in N1 amplitudes. The normal hearing group differed from both the mild and moderate hearing loss groups in terms of relative changes in N1 amplitudes at SNR 10 dB. CONCLUSION The results showed decreased amplitudes and increased latencies for N1-P2 response as the SNR of CAEP stimuli was lowered. The degree of reduction in the N1 amplitudes of the older people with normal hearing resulting from the increase in the background noise level was greater than those in their sensorineural hearing-impaired counterparts, providing evidence for decreased central inhibition for individuals with age-related hearing loss.
Collapse
Affiliation(s)
- Selhan Gürkan
- Departments of Audiometry Dokuz Eylül University, Vocational School of Health Services
| | - Serpil Mungan Durankaya
- Departments of Audiometry Dokuz Eylül University, Vocational School of Health Services
- Departments of Otorhinolaryngology, Audiology Unit, Dokuz Eylül University Hospital, İzmir, Türkiye
| |
Collapse
|
37
|
Reynard P, Mosnier I, Dejean F, Ambert-Dahan E, Bakhos D, Belmin J, Bonnard D, Borel S, Ceccato JC, Coez A, Damien M, Del Rio M, El Yagoubi M, Genin A, Gros A, Harichaux M, Idriss S, Ionescu E, Joly CA, Krolak-Salmon P, Marianowski R, Marx M, Mom T, Parietti-Winkler C, Potier M, Renard C, Roman S, Roy T, Tronche S, Venail F, Vincent C, Thai-Van H. [Early management of presbycusis: recommendations from the French Society of Otorhinolaryngology and Head and Neck Surgery, the French Society of Audiology, and the French Society of Geriatrics and Gerontology]. Geriatr Psychol Neuropsychiatr Vieil 2023; 21:9-20. [PMID: 37115675 DOI: 10.1684/pnv.2023.1090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
INTRODUCTION Presbycusis is the physiological decrease in hearing due to advancing age and begins well before the sixth decade. These recommendations recall the principles of early diagnosis of presbycusis and the means of optimal rehabilitation as soon as the first symptoms appear. MATERIAL AND METHODS The recommendations are based on a systematic analysis of the literature carried out by a multidisciplinary group of doctors and audioprosthetists from all over France. They are graded A, B, C or expert opinion according to decreasing level of scientific evidence. RESULTS The diagnosis of presbycusis is more difficult at the beginning of its evolution but a certain number of tools are available for its early diagnosis and its management in face-to-face or even distance learning. CONCLUSION In case of a clinical profile suggestive of presbycusis in a young subject, especially if there are several family cases, it is recommended to propose a genetic investigation. It is recommended to perform free-field speech audiometry in noise to measure intelligibility in an environment as close as possible to reality. Questionnaires can be used in addition to audiometry to best assess the patient's disability. It is recommended that hearing rehabilitation with a hearing aid or cochlear implant may slow or prevent cognitive decline. Combined auditory and cognitive rehabilitation should be offered regardless of the time elapsed since the fitting. It is recommended to integrate programs accessible via smartphones, tablets or the Internet, integrating different training domains in addition to face-to-face sessions.
Collapse
Affiliation(s)
- Pierre Reynard
- Service d'audiologie et d'explorations otoneurologiques, CHU de Lyon, Hôpital Édouard Herriot, Lyon, France, Université Lyon 1, Institut de l'audition, Institut Pasteur, Inserm, Paris, France
| | - Isabelle Mosnier
- Institut de l'audition, Institut Pasteur, Inserm, Paris, France, APHP-Sorbonne Université, GH Pitié-Salpêtrière, service ORL, unité fonctionnelle implants auditifs, Paris, France
| | | | - Emmanuelle Ambert-Dahan
- APHP-Sorbonne Université, GH Pitié-Salpêtrière, service ORL, unité fonctionnelle implants auditifs, Paris, France
| | - David Bakhos
- Service ORL, CHU de Tours, Inserm UMR 1253 I-Brain, Université François-Rabelais, Tours, France
| | - Joël Belmin
- AP-HP, Hôpitaux universitaires Pitie-Salpêtrière-Charles Foix, Service de Gériatrie à orientation Cardiologique et Neurologique, F-94200 Ivry-sur-Seine, Sorbonne Université, Paris, France
| | - Damien Bonnard
- Service ORL, CHU de Bordeaux, Hôpital Pellegrin, Bordeaux, France
| | - Stéphanie Borel
- APHP-Sorbonne Université, GH Pitié-Salpêtrière, service ORL, unité fonctionnelle implants auditifs, Paris, France
| | - Jean-Charles Ceccato
- Institut des Neurosciences de Montpellier - Inserm U1298, Centre de Recherche et de Formation en Audioprothèse - Montpellier, France
| | - Arnaud Coez
- Institut de l'audition, Institut Pasteur, Inserm, Paris, France
| | - Maxime Damien
- Service d'audiologie et d'explorations otoneurologiques, CHU de Lyon, Hôpital Édouard Herriot, Lyon, France, Université Lyon 1, Institut de l'audition, Institut Pasteur, Inserm, Paris, France
| | | | | | | | - Auriane Gros
- Service ORL, Centre Mémoire Ressources et Recherche. CHU de Nice, Institut Claude Pompidou, Nice, France
| | | | - Samar Idriss
- Service d'audiologie et d'explorations otoneurologiques, CHU de Lyon, Hôpital Édouard Herriot, Lyon, France
| | - Eugen Ionescu
- Service d'audiologie et d'explorations otoneurologiques, CHU de Lyon, Hôpital Édouard Herriot, Lyon, France, Institut de l'audition, Institut Pasteur, Inserm, Paris, France
| | - Charles-Alexandre Joly
- Service d'audiologie et d'explorations otoneurologiques, CHU de Lyon, Hôpital Édouard Herriot, Lyon, France, Institut de l'audition, Institut Pasteur, Inserm, Paris, France
| | | | - Rémi Marianowski
- Service ORL, CHU de Brest, Laboratoire de Neurobiologie UA 4685, France
| | - Mathieu Marx
- Service d'Otologie, Otoneurologie et ORL pédiatrique, Hôpital Pierre-Paul Riquet, CHU Toulouse Purpan, Toulouse, France
| | - Thierry Mom
- Service ORL, CHU d'Estaing, Clermont-Ferrand, France
| | | | | | - Christian Renard
- Service d'Otologie et d'Otoneurologie, Hôpital Salengro, CHU Lille, Université de Lille, Lille, France
| | - Stéphane Roman
- Service ORL, Hôpital de la Timone et de la Conception, Marseille, France
| | - Thomas Roy
- Société Française d'Audiologie, Paris, France
| | - Sophie Tronche
- Société Française d'Otorhinolaryngologie et de Chirurgie de la Face et du Cou, Paris, France
| | - Frédéric Venail
- Unité Otologie et Otoneurologie, Service ORL, CHU Gui de Chauliac, Montpellier, France
| | - Christophe Vincent
- Service d'Otologie et d'Otoneurologie, Hôpital Salengro, CHU Lille, Université de Lille, Lille, France
| | - Hung Thai-Van
- Service d'audiologie et d'explorations otoneurologiques, CHU de Lyon, Hôpital Édouard Herriot, Lyon, France, Université Lyon 1, Institut de l'audition, Institut Pasteur, Inserm, Paris, France
| |
Collapse
|
38
|
Lai J, Alain C, Bidelman GM. Cortical-brainstem interplay during speech perception in older adults with and without hearing loss. Front Neurosci 2023; 17:1075368. [PMID: 36816123 PMCID: PMC9932544 DOI: 10.3389/fnins.2023.1075368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 01/17/2023] [Indexed: 02/05/2023] Open
Abstract
Introduction Real time modulation of brainstem frequency-following responses (FFRs) by online changes in cortical arousal state via the corticofugal (top-down) pathway has been demonstrated previously in young adults and is more prominent in the presence of background noise. FFRs during high cortical arousal states also have a stronger relationship with speech perception. Aging is associated with increased auditory brain responses, which might reflect degraded inhibitory processing within the peripheral and ascending pathways, or changes in attentional control regulation via descending auditory pathways. Here, we tested the hypothesis that online corticofugal interplay is impacted by age-related hearing loss. Methods We measured EEG in older adults with normal-hearing (NH) and mild to moderate hearing-loss (HL) while they performed speech identification tasks in different noise backgrounds. We measured α power to index online cortical arousal states during task engagement. Subsequently, we split brainstem speech-FFRs, on a trial-by-trial basis, according to fluctuations in concomitant cortical α power into low or high α FFRs to index cortical-brainstem modulation. Results We found cortical α power was smaller in the HL than the NH group. In NH listeners, α-FFRs modulation for clear speech (i.e., without noise) also resembled that previously observed in younger adults for speech in noise. Cortical-brainstem modulation was further diminished in HL older adults in the clear condition and by noise in NH older adults. Machine learning classification showed low α FFR frequency spectra yielded higher accuracy for classifying listeners' perceptual performance in both NH and HL participants. Moreover, low α FFRs decreased with increased hearing thresholds at 0.5-2 kHz for clear speech but noise generally reduced low α FFRs in the HL group. Discussion Collectively, our study reveals cortical arousal state actively shapes brainstem speech representations and provides a potential new mechanism for older listeners' difficulties perceiving speech in cocktail party-like listening situations in the form of a miss-coordination between cortical and subcortical levels of auditory processing.
Collapse
Affiliation(s)
- Jesyin Lai
- Institute for Intelligent Systems, University of Memphis, Memphis, TN, United States,School of Communication Sciences and Disorders, University of Memphis, Memphis, TN, United States,Department of Diagnostic Imaging, St. Jude Children’s Research Hospital, Memphis, TN, United States
| | - Claude Alain
- Rotman Research Institute, Baycrest Centre for Geriatric Care, Toronto, ON, Canada,Department of Psychology, University of Toronto, Toronto, ON, Canada
| | - Gavin M. Bidelman
- Institute for Intelligent Systems, University of Memphis, Memphis, TN, United States,School of Communication Sciences and Disorders, University of Memphis, Memphis, TN, United States,Department of Speech, Language, and Hearing Sciences, Indiana University, Bloomington, IN, United States,Program in Neuroscience, Indiana University, Bloomington, IN, United States,*Correspondence: Gavin M. Bidelman,
| |
Collapse
|
39
|
Stenbäck V, Marsja E, Ellis R, Rönnberg J. Relationships between behavioural and self-report measures in speech recognition in noise. Int J Audiol 2023; 62:101-109. [PMID: 35306958 DOI: 10.1080/14992027.2022.2047232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Using data from the n200-study, we aimed to investigate the relationship between behavioural (the Swedish HINT and Hagerman speech-in-noise tests) and self-report (Speech, Spatial and Qualities of Hearing Questionnaire (SSQ)) measures of listening under adverse conditions. DESIGN The Swedish HINT was masked with a speech-shaped noise (SSN), the Hagerman was masked with a SSN and a four-talker babble, and the subscales from the SSQ were used as a self-report measure. The HINT and Hagerman were administered through an experimental hearing aid. STUDY SAMPLE This study included 191 hearing aid users with hearing loss (mean PTA4 = 37.6, SD = 10.8) and 195 normally hearing adults (mean PTA4 = 10.0, SD = 6.0). RESULTS The present study found correlations between behavioural measures of speech-in-noise and self-report scores of the SSQ in normally hearing individuals, but not in hearing aid users. CONCLUSION The present study may help identify relationships between clinically used behavioural measures, and a self-report measure of speech recognition. The results from the present study suggest that use of a self-report measure as a complement to behavioural speech in noise tests might help to further our understanding of how self-report, and behavioural results can be generalised to everyday functioning.
Collapse
Affiliation(s)
- Victoria Stenbäck
- Department of Behavioural Sciences and Learning, Linnaeus Centre HEAD, Swedish Institute for Disability Research, Linköping University, Linköping, Sweden.,Division of Education, Teaching and Learning, Department of Behavioural Sciences and Learning, Linköping university, Linköping, Sweden
| | - Erik Marsja
- Department of Behavioural Sciences and Learning, Linnaeus Centre HEAD, Swedish Institute for Disability Research, Linköping University, Linköping, Sweden
| | - Rachel Ellis
- Department of Behavioural Sciences and Learning, Linnaeus Centre HEAD, Swedish Institute for Disability Research, Linköping University, Linköping, Sweden
| | - Jerker Rönnberg
- Department of Behavioural Sciences and Learning, Linnaeus Centre HEAD, Swedish Institute for Disability Research, Linköping University, Linköping, Sweden
| |
Collapse
|
40
|
Liu J, Chen H, Lin X, Zhu X, Huang J, Xu W, Tan M, Su J. Melatonin Suppresses Cyclic GMP-AMP Synthase-Stimulator of Interferon Genes Signaling and Delays the Development of Hearing Loss in the C57BL/6J Presbycusis Mouse Model. Neuroscience 2023; 517:84-95. [PMID: 36702373 DOI: 10.1016/j.neuroscience.2023.01.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 01/05/2023] [Accepted: 01/16/2023] [Indexed: 01/24/2023]
Abstract
Melatonin supplementation has been shown to delay age-related hearing loss (ARHL) progression. Previously, melatonin was found to inhibit neuronal mitochondrial DNA (mtDNA) release, as well as inhibit cyclic GMP-AMP synthase (cGAS)-stimulator of interferon genes (STING) signaling, thereby delaying the onset of central nervous system diseases. Therefore, we hypothesized that melatonin may delay the progression of hearing loss in the C57BL/6J presbycusis mouse model by inhibiting cGAS-STING signaling in the auditory pathway. Oral melatonin at 10 mg/kg/d was administered to 3-month-old C57BL/6J mice until 12 months of age. The auditory brainstem response (ABR) threshold was used to assess their hearing ability. By real-time polymerase chain reaction and Western blot analysis, the levels of cytosolic mtDNA, cGAS/STING, and cytokines were examined in the mouse cochlea, inferior colliculus, and auditory cortex. We found that the 12-month-old control mice exhibited significant hearing loss, increased cytosolic mtDNA, increased expression of inflammatory factors TNF-α, IL-6, IFN-β, Cxcl10, and Ifit3, up-regulated cGAS and STING expression, and enhanced interferon regulatory factor 3 (IRF3) phosphorylation in the C57BL/6J mouse cochlea, inferior colliculus, and auditory cortex. Melatonin treatment significantly improved hearing, decreased cytosolic mtDNA, suppressed the expression of inflammatory cytokines TNF-α, IL-6, IFN-β, Ifit3, and Cxcl10, down-regulated cGAS and STING expression, and attenuated IRF3 phosphorylation in the C57BL/6J mouse cochlea, inferior colliculus, and auditory cortex. This study suggested that melatonin had a protective effect on auditory function in the C57BL/6J presbycusis mouse model, which may be mediated through reducing mtDNA release, inhibiting the cGAS-STING signaling pathway in the auditory pathway.
Collapse
Affiliation(s)
- Jinlan Liu
- Department of Otolaryngology-Head & Neck Surgery, First Afliated Hospital of Guangxi Medical University, Nanning, Guangxi, China; Department of Otolaryngology-Head & Neck Surgery, Guangxi International Zhuang Medicine Hospital, Nanning, Guangxi, China
| | - Huiying Chen
- Department of Otolaryngology-Head & Neck Surgery, First Afliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Xiaoyu Lin
- Department of Otolaryngology-Head & Neck Surgery, First Afliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Xiaoting Zhu
- Department of Otolaryngology-Head & Neck Surgery, First Afliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Jialin Huang
- Department of Otolaryngology-Head & Neck Surgery, First Afliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Wenfeng Xu
- Department of Otolaryngology-Head & Neck Surgery, First Afliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Ming Tan
- Department of Otolaryngology-Head & Neck Surgery, First Afliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Jiping Su
- Department of Otolaryngology-Head & Neck Surgery, First Afliated Hospital of Guangxi Medical University, Nanning, Guangxi, China.
| |
Collapse
|
41
|
Rivas-Chacón LDM, Yanes-Díaz J, de Lucas B, Riestra-Ayora JI, Madrid-García R, Sanz-Fernández R, Sánchez-Rodríguez C. Cocoa Polyphenol Extract Inhibits Cellular Senescence via Modulation of SIRT1 and SIRT3 in Auditory Cells. Nutrients 2023; 15. [PMID: 36771251 DOI: 10.3390/nu15030544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 01/13/2023] [Accepted: 01/18/2023] [Indexed: 01/22/2023] Open
Abstract
Cocoa, rich in polyphenols, has been reported to provide many health benefits due to its antioxidant properties. In this study, we investigated the effect of Cocoa polyphenols extract (CPE) against oxidative stress-induced cellular senescence using a hydrogen peroxide (H2O2)-induced cellular senescence model in three auditory cells lines derived from the auditory organ of a transgenic mouse: House Ear Institute-Organ of Corti 1 (HEI-OC1), Organ of Corti-3 (OC-k3), and Stria Vascularis (SV-k1) cells. Our results showed that CPE attenuated senescent phenotypes, including senescence-associated β-galactosidase expression, cell proliferation, alterations of morphology, oxidative DNA damage, mitochondrial dysfunction by inhibiting mitochondrial reactive oxygen species (mtROS) generation, and related molecules expressions such as forkhead box O3 (FOXO3) and p53. In addition, we determined that CPE induces expression of sirtuin 1 (SIRT1) and sirtuin 3 (SIRT3), and it has a protective role against cellular senescence by upregulation of SIRT1 and SIRT3. These data indicate that CPE protects against senescence through SIRT1, SIRT3, FOXO3, and p53 in auditory cells. In conclusion, these results suggest that Cocoa has therapeutic potential against age-related hearing loss (ARHL).
Collapse
|
42
|
Li L, Xu K, Bai X, Wang Z, Tian X, Chen X. UCHL1 regulated by Sp1 ameliorates cochlear hair cell senescence and oxidative damage. Exp Ther Med 2023; 25:94. [PMID: 36761006 PMCID: PMC9905655 DOI: 10.3892/etm.2023.11793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 12/09/2022] [Indexed: 01/11/2023] Open
Abstract
Age-related hearing loss (ARHL) is the most common cause of hearing loss in the elderly. Ubiquitin carboxyl-terminal hydrolase L1 (UCHL1) is a deubiquitinating enzyme involved in several types of human disease. The present study aimed to investigate the effect of UCHL1 on a hydrogen peroxide (H2O2)-induced ARHL model in cochlear hair cells and uncover its underlying mechanism. Reverse transcription-quantitative (RT-q)PCR and western blot analysis were used to assess UCHL1 expression in HEI-OC1 cells exposed to H2O2. Following UCHL1 overexpression in H2O2-induced HEI-OC1 cells, cell activity was assessed by Cell Counting Kit-8 assay. The content of oxidative stress-associated markers including superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) and reactive oxygen species (ROS ) was measured using corresponding commercial kits. Cell apoptosis was evaluated by TUNEL assay and western blot analysis. Cell senescence was assessed by senescence-associated β-galactosidase staining and western blot analysis. RT-qPCR and western blot analysis were applied to measure mRNA and protein expression levels, respectively, of specificity protein 1 (Sp1) in H2O2-treated HEI-OC1 cells. In addition, the association between UCHL1 and Sp1 was verified by luciferase reporter and chromatin immunoprecipitation (ChIP) assay. The mRNA and protein expression levels of UCHL1 were also determined in Sp1-overexpressing cells by RT-qPCR and western blot analysis, respectively. Following Sp1 overexpression in UCHL1-overexpressing H2O2-treated HEI-OC1 cells, cell activity, oxidative stress, apoptosis and senescence were assessed. Finally, the expression levels of NF-κB signaling-related proteins p-NF-κB p65 and NF-κB p65 were detected using western blot analysis. The results showed that UCHL1 was downregulated in H2O2-treated HEI-OC1 cells. In addition, UCHL1 overexpression enhanced cell viability and promoted oxidative damage, apoptosis and senescence in H2O2-induced HEI-OC1 cells. Furthermore, Sp1 was upregulated in H2O2-treated HEI-OC1 cells. Additionally, luciferase reporter and ChIP assays demonstrated that Sp1 interacted with the UCHL1 promoter to inhibit UCHL1 transcription. Sp1 overexpression reversed the effect of UCHL1 overexpression on cell viability, oxidative stress, apoptosis, senescence and activation of the NF-κB signaling pathway in H2O2-exposed HEI-OC1 cells. Collectively, the results suggested that UCHL1 transcriptional suppression by Sp1 protected cochlear hair cells from H2O2-triggered senescence and oxidative damage.
Collapse
Affiliation(s)
- Lihua Li
- Department of Otorhinolaryngology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Kai Xu
- Department of Otorhinolaryngology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Xue Bai
- Department of Otorhinolaryngology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Zhi Wang
- Department of Otorhinolaryngology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Xiaoyan Tian
- Department of Otorhinolaryngology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Xubo Chen
- Department of Otorhinolaryngology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China,Correspondence to: Dr Xubo Chen, Department of Otorhinolaryngology, The Second Affiliated Hospital of Nanchang University, 1 Minde Road, Nanchang, Jiangxi 330006, P.R. China
| |
Collapse
|
43
|
Naderi E, Cornejo-Sanchez DM, Li G, Schrauwen I, Wang GT, Dewan AT, Leal SM. The genetic contribution of the X chromosome in age-related hearing loss. Front Genet 2023; 14:1106328. [PMID: 36896235 PMCID: PMC9988903 DOI: 10.3389/fgene.2023.1106328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 02/09/2023] [Indexed: 02/23/2023] Open
Abstract
Age-related (AR) hearing loss (HL) is the most common sensory impairment with heritability of 55%. The aim of this study was to identify genetic variants on chromosome X associated with ARHL through the analysis of data obtained from the UK Biobank. We performed association analysis between self-reported measures of HL and genotyped and imputed variants on chromosome X from ∼460,000 white Europeans. We identified three loci associated with ARHL with a genome-wide significance level (p < 5 × 10-8), ZNF185 (rs186256023, p = 4.9 × 10-10) and MAP7D2 (rs4370706, p = 2.3 × 10-8) in combined analysis of males and females, and LOC101928437 (rs138497700, p = 8.9 × 10-9) in the sex-stratified analysis of males. In-silico mRNA expression analysis showed MAP7D2 and ZNF185 are expressed in mice and adult human inner ear tissues, particularly in the inner hair cells. We estimated that only a small amount of variation of ARHL, 0.4%, is explained by variants on the X chromosome. This study suggests that although there are likely a few genes contributing to ARHL on the X chromosome, the role that the X chromosome plays in the etiology of ARHL may be limited.
Collapse
Affiliation(s)
- Elnaz Naderi
- Center for Statistical Genetics, Gertrude H. Sergievsky Center, and the Department of Neurology, Columbia University Medical Center, New York, NY, United States
| | - Diana M Cornejo-Sanchez
- Center for Statistical Genetics, Gertrude H. Sergievsky Center, and the Department of Neurology, Columbia University Medical Center, New York, NY, United States
| | - Guangyou Li
- Center for Statistical Genetics, Gertrude H. Sergievsky Center, and the Department of Neurology, Columbia University Medical Center, New York, NY, United States
| | - Isabelle Schrauwen
- Center for Statistical Genetics, Gertrude H. Sergievsky Center, and the Department of Neurology, Columbia University Medical Center, New York, NY, United States
| | - Gao T Wang
- Center for Statistical Genetics, Gertrude H. Sergievsky Center, and the Department of Neurology, Columbia University Medical Center, New York, NY, United States
| | - Andrew T Dewan
- Department of Chronic Disease Epidemiology and Center for Perinatal, Pediatric and Environmental Epidemiology, Yale School of Public Health, New Haven, CT, United States
| | - Suzanne M Leal
- Center for Statistical Genetics, Gertrude H. Sergievsky Center, and the Department of Neurology, Columbia University Medical Center, New York, NY, United States.,Taub Institute for Alzheimer's Disease and the Aging Brain, Columbia University Medical Center, New York, NY, United States
| |
Collapse
|
44
|
Lv H, Gao Z, Wang Y, Xie Y, Guan M, Liao H, Xu Y. Global characteristics and trends of presbycusis research from 2002 to 2021: a bibliometric study. Am J Transl Res 2023; 15:2407-2425. [PMID: 37193136 PMCID: PMC10182487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 03/14/2023] [Indexed: 05/18/2023]
Abstract
BACKGROUND AND OBJECTIVE Age-related hearing loss, also termed presbycusis, is the most prevalent sensory impairment in older adults. Presbycusis research has considerably advanced over the past few decades, however, comprehensive and objective reports on the current state of presbycusis research are lacking. We used bibliometric methods to objectively analyzed the progress of presbycusis research over the past 20 years and to identify the research hotspots and emerging trends in this field. METHODS Eligible literature metadata published between 2002 and 2021 were obtained from the Web of Science Core Collection on September 1, 2022. Bibliometric tools including CiteSpace, VOSviewer, Bibliometrix R Package, Microsoft Excel 2019, and an online bibliometric platform were used to conduct bibliometric and visualized analyses. RESULTS A total of 1,693 publications related to presbycusis were retrieved. The number of publications increased continuously from 2002 to 2021, and the USA occupied the lead position in the field, with the highest research output. The most productive and influential institution, author, and journal were the University of California, Frisina DR of the University of South Florida, and Hearing Research, respectively. Co-citation cluster and trend topics analyses revealed that "cochlear synaptopathy", "oxidative stress", and "dementia" were the predominant foci of presbycusis research. Burst detection of keywords indicated that "auditory cortex" and "Alzheimer's disease" were the newly-emerged aspects. CONCLUSION During the past two decades, presbycusis research has been flourishing. The current research foci are "cochlear synaptopathy", "oxidative stress", and "dementia". "Auditory cortex" and "Alzheimer's disease" may be potential future directions in this field. This bibliometric analysis represents the first quantitative overview of presbycusis research, thus providing valuable references and insights for scholars, medical practitioners, and policymakers concerned with this field.
Collapse
Affiliation(s)
- Hao Lv
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan UniversityWuhan 430060, Hubei, China
| | - Ziang Gao
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan UniversityWuhan 430060, Hubei, China
| | - Yunfei Wang
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan UniversityWuhan 430060, Hubei, China
| | - Yulie Xie
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan UniversityWuhan 430060, Hubei, China
| | - Mengting Guan
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan UniversityWuhan 430060, Hubei, China
| | - Hua Liao
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan UniversityWuhan 430060, Hubei, China
- Research Institute of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan UniversityWuhan 430060, Hubei, China
| | - Yu Xu
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan UniversityWuhan 430060, Hubei, China
- Research Institute of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan UniversityWuhan 430060, Hubei, China
| |
Collapse
|
45
|
Vaden KI, Neely ST, Harris SE, Dubno JR. Metabolic and Sensory Components of Age-Related Hearing Loss: Associations With Distortion- and Reflection-Based Otoacoustic Emissions. Trends Hear 2023; 27:23312165231213776. [PMID: 37969007 PMCID: PMC10655661 DOI: 10.1177/23312165231213776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 10/25/2023] [Accepted: 10/26/2023] [Indexed: 11/17/2023] Open
Abstract
Age-related hearing loss is difficult to study in humans because multiple genetic and environmental risk factors may contribute to pathology and cochlear function declines in older adults. These pathologies, including degeneration of the stria vascularis, are hypothesized to affect outer hair cells responsible for active cochlear amplification of low-level sounds. Otoacoustic emission (OAE) measures are used to quantify the energy added to the traveling wave in cochlear amplification, which typically weakens with increased pure-tone thresholds and for older individuals. Thus, the current study evaluated two OAE measures for individuals with different components of age-related hearing loss. We examined two retrospective adult lifespan datasets (18 to 89+ years of age) from independent sites (Medical University of South Carolina and Boys Town National Research Hospital), which included demographics, noise history questionnaires, distortion-product otoacoustic emissions (DPOAE), and cochlear reflectance (CR). Metabolic and sensory estimates of age-related hearing loss were derived from the audiograms in each dataset, and then tested for associations with DPOAE and CR. The results showed that metabolic estimates increased for older participants and were associated with lower overall DPOAE and CR magnitudes across frequency (i.e., lower fitted intercepts). Sensory estimates were significantly higher for males, who reported more positive noise histories compared to females and were associated with steeper negative across-frequency slopes for DPOAEs. Although significant associations were observed between OAE configurations, DPOAEs appeared uniquely sensitive to metabolic estimates. The current findings suggest that distortion-based measures may provide greater sensitivity than reflection-based measures to the components of age-related hearing loss.
Collapse
Affiliation(s)
- Kenneth I. Vaden
- Department of Otolaryngology – Head & Neck Surgery, Medical University of South Carolina, Charleston, SC, USA
| | - Stephen T. Neely
- Center for Hearing Research, Boys Town National Research Hospital, Omaha, NE, USA
| | - Sara E. Harris
- Center for Hearing Research, Boys Town National Research Hospital, Omaha, NE, USA
| | - Judy R. Dubno
- Department of Otolaryngology – Head & Neck Surgery, Medical University of South Carolina, Charleston, SC, USA
| |
Collapse
|
46
|
Zhu S, Song J, Xia W, Xue Y. Aberrant brain functional network strength related to cognitive impairment in age-related hearing loss. Front Neurol 2022; 13:1071237. [PMID: 36619924 PMCID: PMC9810801 DOI: 10.3389/fneur.2022.1071237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 11/28/2022] [Indexed: 12/24/2022] Open
Abstract
Purpose Age-related hearing loss (ARHL) is a major public issue that affects elderly adults. However, the neural substrates for the cognitive deficits in patients with ARHL need to be elucidated. This study aimed to explore the brain regions that show aberrant brain functional network strength related to cognitive impairment in patients with ARHL. Methods A total of 27 patients with ARHL and 23 well-matched healthy controls were recruited for the present study. Each subject underwent pure-tone audiometry (PTA), MRI scanning, and cognition evaluation. We analyzed the functional network strength by using degree centrality (DC) characteristics and tried to recognize key nodes that contribute significantly. Subsequent functional connectivity (FC) was analyzed using significant DC nodes as seeds. Results Compared with controls, patients with ARHL showed a deceased DC in the bilateral supramarginal gyrus (SMG). In addition, patients with ARHL showed enhanced DC in the left fusiform gyrus (FG) and right parahippocampal gyrus (PHG). Then, the bilateral SMGs were used as seeds for FC analysis. With the seed set at the left SMG, patients with ARHL showed decreased connectivity with the right superior temporal gyrus (STG). Moreover, the right SMG showed reduced connectivity with the right middle temporal gyrus (MTG) and increased connection with the left middle frontal gyrus (MFG) in patients with ARHL. The reduced DC in the left and right SMGs showed significant negative correlations with poorer TMT-B scores (r = -0.596, p = 0.002; r = -0.503, p = 0.012, respectively). Conclusion These findings enriched our understanding of the neural mechanisms underlying cognitive impairment associated with ARHL and may serve as a potential brain network biomarker for investigating and predicting cognitive difficulties.
Collapse
Affiliation(s)
- Shaoyun Zhu
- Department of Ultrasound, Nanjing Pukou Central Hospital, Pukou Branch Hospital of Jiangsu Province Hospital, Nanjing, China
| | - Jiajie Song
- Department of Radiology, Nanjing Pukou Central Hospital, Pukou Branch Hospital of Jiangsu Province Hospital, Nanjing, China
| | - Wenqing Xia
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China,*Correspondence: Wenqing Xia ✉
| | - Yuan Xue
- Department of Otolaryngology, Nanjing Pukou Central Hospital, Pukou Branch Hospital of Jiangsu Province Hospital, Nanjing, China,Yuan Xue ✉
| |
Collapse
|
47
|
Nigam M, Neupane AK. Impact of COVID-19 Pandemic on Older Adults Using Hearing aid/s: Indian Scenario. Indian J Otolaryngol Head Neck Surg 2022; 75:155-162. [PMID: 36532234 PMCID: PMC9734753 DOI: 10.1007/s12070-022-03209-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 09/23/2022] [Indexed: 12/14/2022] Open
Abstract
The present study explored the impact of COVID-19 on hearing health and problems faced by older adults using hearing aid/s. Fifty older adults in the age range of 55–95 years were selected for the study based on the inclusion and exclusion criteria. Therefore, the developed questionnaire was administered to them. Statistical analysis was performed for all the responses achieved. Closure of hearing aid companies and audiological centers was found to have a negative impact on availing audiological services. Likewise, a huge hike in the price of these services made it impossible for people to afford them. Despite the availability of tele-audiology, older adults were not able to make the best use of it due to numerous reasons. We sought to explore patients’ perceptions to break down these barriers by enhancing the quality of tele-audiology, home visits, and remote services. Therefore, the present report may facilitate in planning and implementation of policies related to audiological services, especially during times of crisis, which may help strengthen our hearing health care system.
Collapse
Affiliation(s)
- Manisha Nigam
- School of Audiology & Speech-Language Pathology, Bharati Vidyapeeth (Deemed to be University), 411043 Pune, India
| | - Anuj Kumar Neupane
- School of Audiology & Speech-Language Pathology, Bharati Vidyapeeth (Deemed to be University), 411043 Pune, India
| |
Collapse
|
48
|
Zhao T, Tian G. Corrigendum: Potential therapeutic role of SIRT1 in age- related hearing loss. Front Mol Neurosci 2022; 15:1099324. [PMID: 36533128 PMCID: PMC9756968 DOI: 10.3389/fnmol.2022.1099324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 11/16/2022] [Indexed: 12/03/2022] Open
Abstract
[This corrects the article DOI: 10.3389/fnmol.2022.984292.].
Collapse
Affiliation(s)
- Tingting Zhao
- Department of Otorhinolaryngology-Head and Neck Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China
| | - Guangyong Tian
- Department of Otorhinolaryngology-Head and Neck Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China
| |
Collapse
|
49
|
Abstract
The United States does not ensure equitable access to hearing health care for all age groups, largely because these services are costly and even unobtainable in some places. Barriers to care are discussed within a context of the social determinants of health, under-representativeness of hearing-care professionals from historically marginalized communities, older adults and age-related hearing loss, and associated health conditions. The MarkeTrak 2022 study generated a sample of 15,138 respondents with information on 43,597 individuals. Data analysis revealed that self-reported hearing difficulty appears to increase with age with a rate of 12.4% for adults 18 years of age and older. A substantial proportion of individuals with hearing difficulty assumed that their problem was age-related, followed by exposure to loud sound and noise. Individuals with hearing difficulty were nearly three to four times more likely to have tinnitus, cognitive problems, and issues with balance and falling than those with no hearing problems. Self-reported hearing difficulty was lower for historically marginalized groups (7%) than for the White population (12%). Recommendations are presented to reduce the burden of hearing difficulty and hearing aid deserts for rural and urban populations.
Collapse
Affiliation(s)
- Antony R. Joseph
- Hearing Loss Prevention Laboratory, Department of Communication Sciences and Disorders, Illinois State University, Normal, Illinois,Address for correspondence Antony R. Joseph, Au.D., Ph.D. Hearing Loss Prevention Laboratory, Department of Communication Sciences and Disorders, Illinois State UniversityCampus Box 4720, NormalIL
| |
Collapse
|
50
|
Fu X, Eikelboom RH, Liu B, Wang S, Jayakody DMP. The impact of untreated hearing loss on depression, anxiety, stress, and loneliness in tonal language-speaking older adults in China. Front Psychol 2022; 13:917276. [PMID: 36532984 PMCID: PMC9751871 DOI: 10.3389/fpsyg.2022.917276] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 11/11/2022] [Indexed: 03/07/2024] Open
Abstract
BACKGROUND Age-related hearing loss, mental health conditions, and loneliness commonly affect older adults. This study aimed to determine whether untreated hearing loss is independently associated with depression, anxiety, stress, and loneliness in tonal language-speaking older adults in China. STUDY DESIGN Observational, cross-sectional study. METHODS 293 older adults (111 males, M = 70.33 ± 4.90 years; 182 females, M = 69.02 ± 4.08 years) were recruited. All participants completed a pure tone audiometric hearing assessment, and provided information on living arrangements, marital status, leisure activities, tobacco and alcohol use, and medical history. The Mandarin version of the De Jong Gierveld Loneliness Scale was used to measure loneliness, and the Mandarin version of the 21-item Depression Anxiety Stress Scale (DASS-21) was used to assess a range of symptoms common to depression, stress, and anxiety of the participants. The analysis focused on determining the predictors of depression, anxiety, and stress, and the predictors of measures of loneliness. RESULTS Multiple stepwise regression analyses revealed that the emotional loneliness (β = 0.303, p < 0.001) and living status (β = 0.110, p = 0.048) significantly predicted DASS depression scores; emotional loneliness (β = 0.276, p < 0.001) and a history of vascular disease (β = 0.148, p = 0.009) were significantly related to DASS anxiety scores; emotional loneliness (β = 0.341, p < 0.001) and a history of vascular disease (β = 0.129, p = 0.019) significantly predicted DASS stress scores. Furthermore, multiple stepwise regression analyses showed that DASS stress scores (β = 0.333, p < 0.001), education years (β = -0.126, p = 0.020), marriage status (β = 0.122, p = 0.024), and a history of vascular disease (β = 0.111, p = 0.044) significantly predicted emotional loneliness; four-frequency average hearing loss (β = 0.149, p = 0.010) and DASS stress scores (β = 0.123, p = 0.034) significantly predicted social loneliness scale; and four-frequency average hearing loss (β = 0.167, p = 0.003) and DASS stress scores (β = 0.279, p < 0.001) also significantly predicted overall loneliness. There were no significant associations with high-frequency hearing loss. CONCLUSION This study revealed that loneliness has a significant relationship both with hearing loss and aspects of mental health in an older adult Mandarin-speaking population. However, mental health was not significantly associated with hearing loss in this population.
Collapse
Affiliation(s)
- Xinxing Fu
- Beijing Institute of Otolaryngology, Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Medical School, The University of Western Australia, Crawley, WA, Australia
- Ear Science Institute Australia, Subiaco, WA, Australia
| | - Robert H. Eikelboom
- Medical School, The University of Western Australia, Crawley, WA, Australia
- Ear Science Institute Australia, Subiaco, WA, Australia
- Department of Speech-Language Pathology and Audiology, University of Pretoria, Pretoria, South Africa
- Curtin Medical School, Curtin University, Bentley, WA, Australia
| | - Bo Liu
- Beijing Institute of Otolaryngology, Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Shuo Wang
- Beijing Institute of Otolaryngology, Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Dona M. P. Jayakody
- Medical School, The University of Western Australia, Crawley, WA, Australia
- Ear Science Institute Australia, Subiaco, WA, Australia
- Curtin Medical School, Curtin University, Bentley, WA, Australia
- WA Centre for Health and Aging, The University of Western Australia, Crawley, WA, Australia
| |
Collapse
|