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Ding D, Manohar S, Kador PF, Salvi R. Multifunctional redox modulator prevents blast-induced loss of cochlear and vestibular hair cells and auditory spiral ganglion neurons. Sci Rep 2024; 14:15296. [PMID: 38961203 PMCID: PMC11222375 DOI: 10.1038/s41598-024-66406-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Accepted: 07/01/2024] [Indexed: 07/05/2024] Open
Abstract
Blast wave exposure, a leading cause of hearing loss and balance dysfunction among military personnel, arises primarily from direct mechanical damage to the mechanosensory hair cells and supporting structures or indirectly through excessive oxidative stress. We previously reported that HK-2, an orally active, multifunctional redox modulator (MFRM), was highly effective in reducing both hearing loss and hair cells loss in rats exposed to a moderate intensity workday noise that likely damages the cochlea primarily from oxidative stress versus direct mechanical trauma. To determine if HK-2 could also protect cochlear and vestibular cells from damage caused primarily from direct blast-induced mechanical trauma versus oxidative stress, we exposed rats to six blasts of 186 dB peak SPL. The rats were divided into four groups: (B) blast alone, (BEP) blast plus earplugs, (BHK-2) blast plus HK-2 and (BEPHK-2) blast plus earplugs plus HK-2. HK-2 was orally administered at 50 mg/kg/d from 7-days before to 30-day after the blast exposure. Cochlear and vestibular tissues were harvested 60-d post-exposure and evaluated for loss of outer hair cells (OHC), inner hair cells (IHC), auditory nerve fibers (ANF), spiral ganglion neurons (SGN) and vestibular hair cells in the saccule, utricle and semicircular canals. In the untreated blast-exposed group (B), massive losses occurred to OHC, IHC, ANF, SGN and only the vestibular hair cells in the striola region of the saccule. In contrast, rats treated with HK-2 (BHK-2) sustained significantly less OHC (67%) and IHC (57%) loss compared to the B group. OHC and IHC losses were smallest in the BEPHK-2 group, but not significantly different from the BEP group indicating lack of protective synergy between EP and HK-2. There was no loss of ANF, SGN or saccular hair cells in the BHK-2, BEP and BEPHK-2 groups. Thus, HK-2 not only significantly reduced OHC and IHC damage, but completely prevented loss of ANF, SGN and saccule hair cells. The powerful protective effects of this oral MFRM make HK-2 an extremely promising candidate for human clinical trials.
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Affiliation(s)
- Dalian Ding
- Center for Hearing and Deafness, University at Buffalo, Buffalo, NY, 14214, USA
| | | | | | - Richard Salvi
- Center for Hearing and Deafness, University at Buffalo, Buffalo, NY, 14214, USA.
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2
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Shakhtour L, Song S, Orobello NC, Ambrose T, Rana MS, Behzadpour HK, Reilly BK. Evaluation of Noise Exposure Levels in Pediatric ENT Operating Rooms. Otolaryngol Head Neck Surg 2024. [PMID: 38881393 DOI: 10.1002/ohn.857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 05/08/2024] [Accepted: 05/27/2024] [Indexed: 06/18/2024]
Abstract
OBJECTIVE Operating room (OR) sounds may surpass noise exposure thresholds and induce hearing loss. Noise intensity emitted by various surgical instruments during common pediatric otolaryngologic procedures were compared at the ear-level of the surgeon and patient to evaluate the need for quality improvement measures. STUDY DESIGN Cross-sectional study. SETTING Single tertiary care center. METHODS Noise levels were measured using the RISEPRO Sound Level Meter and SoundMeter X 10.0.4 at the ear level of surgeon and patient every 5 minutes. Operative procedure and instrument type were recorded. Measured noise levels were compared against ambient noise levels and the Apple Watch Noise application. RESULTS Two hundred forty-two total occasions of noise were recorded across 62 surgical cases. Cochlear implantation surgery produces the loudest case at the ear-level of the patient (91.8 Lq Peak dB; P < .001). The otologic drill was the loudest instrument for the patient (92.1 Lq Peak dB; P < .001), while the powered microdebrider was the loudest instrument for the surgeon (90.7 Lq Peak dB; P = .036). Noise measurements between surgeon and patient were similar (P < .05). Overall agreement between the Noise application and Sound Level Meter was excellent (intraclass correlation coefficient of 0.8, with a 95% confidence interval ranging from 0.32 to 0.92). CONCLUSION Otolaryngology OR noises can surpass normal safe thresholds. Failure to be aware of this may unwittingly expose providers to noise-related hearing loss. Mitigation strategies should be employed. Quality improvement measures, including attention to surgical instrument volume settings and periodic decibel measurements with sound applications, can promote long-term hearing conservation. DISCUSSION Otolaryngology OR noises can surpass normal safe thresholds. Failure to be aware of this may unwittingly expose providers to noise-related hearing loss. The duration, frequency of exposure, and volume levels of noise should be studied further. IMPLICATIONS FOR PRACTICE Mitigation strategies should be employed. Quality improvement measures, including attention to surgical instrument volume settings and periodic decibel measurements with sound applications, can promote long-term hearing conservation.
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Affiliation(s)
- Leyn Shakhtour
- Division of Otolaryngology-Head and Neck Surgery, The George Washington University School of Medicine and Health Sciences, Washington, District of Columbia, USA
| | - Sophia Song
- Division of Otolaryngology-Head and Neck Surgery, The George Washington University School of Medicine and Health Sciences, Washington, District of Columbia, USA
| | - Nicklas C Orobello
- Department of Otolaryngology, Children's National Hospital, Washington, District of Columbia, USA
| | - Tracey Ambrose
- Department of Otolaryngology, Children's National Hospital, Washington, District of Columbia, USA
| | - Md Sohel Rana
- Division of Surgery, Children's National Hospital, Washington, District of Columbia, USA
| | - Hengameh K Behzadpour
- Department of Otolaryngology, Children's National Hospital, Washington, District of Columbia, USA
| | - Brian K Reilly
- Department of Otolaryngology, Children's National Hospital, Washington, District of Columbia, USA
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Park Y, Li J, Ismail Mohamad N, Matthews IR, Santra P, Sherr EH, Chan DK. Noise induces intercellular Ca 2+ signaling waves and the unfolded protein response in the hearing cochlea. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.05.597671. [PMID: 38895437 PMCID: PMC11185706 DOI: 10.1101/2024.06.05.597671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
Exposure to loud noise is a common cause of acquired hearing loss. Disruption of subcellular calcium homeostasis and downstream stress pathways in the endoplasmic reticulum and mitochondria, including the unfolded protein response, have been implicated in the pathophysiology of noise-induced hearing loss. However, studies on the association between calcium homeostasis and stress pathways has been limited due to limited ability to measure calcium dynamics in mature-hearing, noise-exposed mice. We used a genetically encoded calcium indicator mouse model in which GcAMP is expressed specifically in hair cells or supporting cells under control of Myo15Cre or Sox2Cre, respectively. We performed live calcium imaging and UPR gene expression analysis in 8-week-old mice exposed to levels of noise that cause cochlear synaptopathy (98 db SPL) or permanent hearing loss (106 dB SPL). UPR activation occurred immediately after noise exposure and was noise dose-dependent, with the pro-apoptotic pathway upregulated only after 106 dB noise exposure. Spontaneous calcium transients in hair cells and intercellular calcium waves in supporting cells, which are present in neonatal cochleae, were quiescent in mature-hearing cochleae, but re-activated upon noise exposure. 106 dB noise exposure was associated with more persistent and expansive ICS wave activity. These findings demonstrate a strong and dose-dependent association between noise exposure, UPR activation, and changes in calcium homeostasis in hair cells and supporting cells, suggesting that targeting these pathways may be effective to develop treatments for noise-induced hearing loss.
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Sailor-Longsworth E, Lutze RD, Ingersoll MA, Kelmann RG, Ly K, Currier D, Chen T, Zuo J, Teitz T. Oseltamivir (Tamiflu), a Commonly Prescribed Antiviral Drug, Mitigates Hearing Loss in Mice. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.06.592815. [PMID: 38765999 PMCID: PMC11100672 DOI: 10.1101/2024.05.06.592815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
Hearing loss affects up to 10% of all people worldwide, but currently there is only one FDA-approved drug for its prevention in a subgroup of cisplatin-treated pediatric patients. Here, we performed an unbiased screen of 1,300 FDA-approved drugs for protection against cisplatin-induced cell death in an inner ear cell line, and identified oseltamivir phosphate (brand name Tamiflu), a common influenza antiviral drug, as a top candidate. Oseltamivir phosphate was found to be otoprotective by oral delivery in multiple established cisplatin and noise exposure mouse models. The drug conferred permanent hearing protection of 15-25 dB SPL for both female and male mice. Oseltamivir treatment reduced in mice outer hair cells death after cisplatin treatment and mitigated cochlear synaptopathy after noise exposure. A potential binding protein, ERK1/2, associated with inflammation, was shown to be activated with cisplatin treatment and reduced by oseltamivir cotreatment in cochlear explants. Importantly, the number of infiltrating immune cells to the cochleae in mice post noise exposure, were significantly reduced with oseltamivir treatment, suggesting an anti-inflammatory mechanism of action. Our results support oseltamivir, a widespread drug for influenza with low side effects, as a promising otoprotective therapeutic candidate in both cisplatin chemotherapy and traumatic noise exposure.
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Affiliation(s)
- Emma Sailor-Longsworth
- Department of Pharmacology and Neuroscience, School of Medicine, Creighton University, Omaha, NE 68178, USA
| | - Richard D. Lutze
- Department of Pharmacology and Neuroscience, School of Medicine, Creighton University, Omaha, NE 68178, USA
| | - Matthew A. Ingersoll
- Department of Pharmacology and Neuroscience, School of Medicine, Creighton University, Omaha, NE 68178, USA
| | - Regina G. Kelmann
- Department of Pharmacology and Neuroscience, School of Medicine, Creighton University, Omaha, NE 68178, USA
| | - Kristina Ly
- Department of Pharmacology and Neuroscience, School of Medicine, Creighton University, Omaha, NE 68178, USA
| | - Duane Currier
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, TN, 38105, USA
| | - Taosheng Chen
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, TN, 38105, USA
| | - Jian Zuo
- Department of Biomedical Sciences, School of Medicine, Creighton University, Omaha, NE 68178, USA
| | - Tal Teitz
- Department of Pharmacology and Neuroscience, School of Medicine, Creighton University, Omaha, NE 68178, USA
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Fink D. What is the safe noise exposure level to prevent noise-induced hearing loss? JOURNAL OF EXPOSURE SCIENCE & ENVIRONMENTAL EPIDEMIOLOGY 2024:10.1038/s41370-024-00660-3. [PMID: 38637639 DOI: 10.1038/s41370-024-00660-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 03/06/2024] [Accepted: 03/07/2024] [Indexed: 04/20/2024]
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Zou T, Xie R, Huang S, Lu D, Liu J. Potential role of modulating autophagy levels in sensorineural hearing loss. Biochem Pharmacol 2024; 222:116115. [PMID: 38460910 DOI: 10.1016/j.bcp.2024.116115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 02/20/2024] [Accepted: 03/06/2024] [Indexed: 03/11/2024]
Abstract
In recent years, extensive research has been conducted on the pathogenesis of sensorineural hearing loss (SNHL). Apoptosis and necrosis have been identified to play important roles in hearing loss, but they cannot account for all hearing loss. Autophagy, a cellular process responsible for cell self-degradation and reutilization, has emerged as a significant factor contributing to hearing loss, particularly in cases of autophagy deficiency. Autophagy plays a crucial role in maintaining cell health by exerting cytoprotective and metabolically homeostatic effects in organisms. Consequently, modulating autophagy levels can profoundly impact the survival, death, and regeneration of cells in the inner ear, including hair cells (HCs) and spiral ganglion neurons (SGNs). Abnormal mitochondrial autophagy has been demonstrated in animal models of SNHL. These findings indicate the profound significance of comprehending autophagy while suggesting that our perspective on this cellular process holds promise for advancing the treatment of SNHL. Thus, this review aims to clarify the pathogenic mechanisms of SNHL and the role of autophagy in the developmental processes of various cochlear structures, including the greater epithelial ridge (GER), SGNs, and the ribbon synapse. The pathogenic mechanisms of age-related hearing loss (ARHL), also known as presbycusis, and the latest research on autophagy are also discussed. Furthermore, we underscore recent findings on the modulation of autophagy in SNHL induced by ototoxic drugs. Additionally, we suggest further research that might illuminate the complete potential of autophagy in addressing SNHL, ultimately leading to the formulation of pioneering therapeutic strategies and approaches for the treatment of deafness.
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Affiliation(s)
- Ting Zou
- Department of Otorhinolaryngology, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Renwei Xie
- Department of Otorhinolaryngology, Renhe Hospital, Baoshan District, Shanghai, China
| | - Sihan Huang
- Department of Otorhinolaryngology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Dingkun Lu
- Cardiac Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jun Liu
- Department of Otorhinolaryngology, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
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Ferguson LA, Taff BD, Blanford JI, Mennitt DJ, Mowen AJ, Levenhagen M, White C, Monz CA, Francis CD, Barber JR, Newman P. Understanding park visitors' soundscape perception using subjective and objective measurement. PeerJ 2024; 12:e16592. [PMID: 38313034 PMCID: PMC10838067 DOI: 10.7717/peerj.16592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 11/14/2023] [Indexed: 02/06/2024] Open
Abstract
Environmental noise knows no boundaries, affecting even protected areas. Noise pollution, originating from both external and internal sources, imposes costs on these areas. It is associated with adverse health effects, while natural sounds contribute to cognitive and emotional improvements as ecosystem services. When it comes to parks, individual visitors hold unique perceptions of soundscapes, which can be shaped by various factors such as their motivations for visiting, personal norms, attitudes towards specific sounds, and expectations. In this study, we utilized linear models and geospatial data to evaluate how visitors' personal norms and attitudes, the park's acoustic environment, visitor counts, and the acoustic environment of visitors' neighborhoods influenced their perception of soundscapes at Muir Woods National Monument. Our findings indicate that visitors' subjective experiences had a greater impact on their perception of the park's soundscape compared to purely acoustic factors like sound level of the park itself. Specifically, we found that motivations to hear natural sounds, interference caused by noise, sensitivity to noise, and the sound levels of visitors' home neighborhoods influenced visitors' perception of the park's soundscape. Understanding how personal factors shape visitors' soundscape perception can assist urban and non-urban park planners in effectively managing visitor experiences and expectations.
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Affiliation(s)
- Lauren A. Ferguson
- Recreation Management and Policy Department, University of New Hampshire, Durham, NH, United States of America
| | - B. Derrick Taff
- Department of Recreation, Park and Tourism Management, Pennsylvania State University, PA, United States of America
| | - Justine I. Blanford
- Geo-Information Science and Earth Observation, University of Twente, Enschede, Netherlands
| | - Daniel J. Mennitt
- Mechanical Engineering, Exponent, Inc., Denver, CO, United States of America
| | - Andrew J. Mowen
- Department of Recreation, Park and Tourism Management, Pennsylvania State University, PA, United States of America
| | - Mitchell Levenhagen
- Department of Biological Sciences, Boise State University, Boise, ID, United States of America
- Ramboll Americas Engineering Solutions, Inc., Milwaukee, WI, United States of America
| | - Crow White
- Biological Sciences Department, California Polytechnic State University, San Luis Obispo, CA, United States of America
| | - Christopher A. Monz
- Department of Environment and Society, Utah State University, Logan, UT, United States of America
| | - Clinton D. Francis
- Biological Sciences Department, California Polytechnic State University, San Luis Obispo, CA, United States of America
| | - Jesse R. Barber
- Department of Biological Sciences, Boise State University, Boise, ID, United States of America
| | - Peter Newman
- Department of Recreation, Park and Tourism Management, Pennsylvania State University, PA, United States of America
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8
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Haile LM, Orji AU, Reavis KM, Briant PS, Lucas KM, Alahdab F, Bärnighausen TW, Bell AW, Cao C, Dai X, Hay SI, Heidari G, Karaye IM, Miller TR, Mokdad AH, Mostafavi E, Natto ZS, Pawar S, Rana J, Seylani A, Singh JA, Wei J, Yang L, Ong KL, Steinmetz JD. Hearing Loss Prevalence, Years Lived With Disability, and Hearing Aid Use in the United States From 1990 to 2019: Findings From the Global Burden of Disease Study. Ear Hear 2024; 45:257-267. [PMID: 37712826 PMCID: PMC10718207 DOI: 10.1097/aud.0000000000001420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 06/17/2023] [Indexed: 09/16/2023]
Abstract
OBJECTIVES This article describes key data sources and methods used to estimate hearing loss in the United States, in the Global Burden of Disease study. Then, trends in hearing loss are described for 2019, including temporal trends from 1990 to 2019, changing prevalence over age, severity patterns, and utilization of hearing aids. DESIGN We utilized population-representative surveys from the United States to estimate hearing loss prevalence for the Global Burden of Disease study. A key input data source in modeled estimates are the National Health and Nutrition Examination Surveys (NHANES), years 1988 to 2010. We ran hierarchical severity-specific models to estimate hearing loss prevalence. We then scaled severity-specific models to sum to total hearing impairment prevalence, adjusted estimates for hearing aid coverage, and split estimates by etiology and tinnitus status. We computed years lived with disability (YLDs), which quantifies the amount of health loss associated with a condition depending on severity and creates a common metric to compare the burden of disparate diseases. This was done by multiplying the prevalence of severity-specific hearing loss by corresponding disability weights, with additional weighting for tinnitus comorbidity. RESULTS An estimated 72.88 million (95% uncertainty interval (UI) 68.53 to 77.30) people in the United States had hearing loss in 2019, accounting for 22.2% (20.9 to 23.6) of the total population. Hearing loss was responsible for 2.24 million (1.56 to 3.11) YLDs (3.6% (2.8 to 4.7) of total US YLDs). Age-standardized prevalence was higher in males (17.7% [16.7 to 18.8]) compared with females (11.9%, [11.2 to 12.5]). While most cases of hearing loss were mild (64.3%, 95% UI 61.0 to 67.6), disability was concentrated in cases that were moderate or more severe. The all-age prevalence of hearing loss in the United States was 28.1% (25.7 to 30.8) higher in 2019 than in 1990, despite stable age-standardized prevalence. An estimated 9.7% (8.6 to 11.0) of individuals with mild to profound hearing loss utilized a hearing aid, while 32.5% (31.9 to 33.2) of individuals with hearing loss experienced tinnitus. Occupational noise exposure was responsible for 11.2% (10.2 to 12.4) of hearing loss YLDs. CONCLUSIONS Results indicate large burden of hearing loss in the United States, with an estimated 1 in 5 people experiencing this condition. While many cases of hearing loss in the United States were mild, growing prevalence, low usage of hearing aids, and aging populations indicate the rising impact of this condition in future years and the increasing importance of domestic access to hearing healthcare services. Large-scale audiometric surveys such as NHANES are needed to regularly assess hearing loss burden and access to healthcare, improving our understanding of who is impacted by hearing loss and what groups are most amenable to intervention.
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Affiliation(s)
- Lydia M. Haile
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | - Aislyn U. Orji
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | - Kelly M. Reavis
- National Center for Rehabilitative Auditory Research, US Department of Veterans Affairs—Portland Healthcare System, Portland, OR, USA
| | - Paul Svitil Briant
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | - Katia M. Lucas
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | - Fares Alahdab
- Mayo Evidence-based Practice Center, Mayo Clinic Foundation for Medical Education and Research, Rochester, MN, USA
| | - Till Winfried Bärnighausen
- Heidelberg Institute of Global Health (HIGH), Heidelberg University, Heidelberg, Germany
- T.H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Arielle Wilder Bell
- Department of Global Health and Social Medicine, Harvard University, Boston, MA, USA
- Department of Social Services, Tufts Medical Center, Boston, MA, USA
| | - Chao Cao
- Program in Physical Therapy, Washington University in St. Louis, St. Louis, MO, USA
| | - Xiaochen Dai
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
- Department of Health Metrics Sciences, School of Medicine, University of Washington, Seattle, WA, USA
| | - Simon I. Hay
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
- Department of Health Metrics Sciences, School of Medicine, University of Washington, Seattle, WA, USA
| | | | - Ibraheem M. Karaye
- School of Health Professions and Human Services, Hofstra University, Hempstead, NY, USA
| | - Ted R. Miller
- Pacific Institute for Research & Evaluation, Calverton, MD, USA
- School of Public Health, Curtin University, Perth, WA, Australia
| | - Ali H. Mokdad
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
- Department of Health Metrics Sciences, School of Medicine, University of Washington, Seattle, WA, USA
| | - Ebrahim Mostafavi
- Department of Medicine, Stanford University, Palo Alto, CA, USA
- Stanford Cardiovascular Institute, Stanford University, Palo Alto, CA, USA
| | - Zuhair S. Natto
- Department of Dental Public Health, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Oral Health Policy and Epidemiology, Harvard University, Boston, USA
| | - Shrikant Pawar
- Department of Genetics, Yale University, New Haven, CT, USA
| | - Juwel Rana
- Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, QC, Canada
- Research and Innovation Division, South Asian Institute for Social Transformation (SAIST), Dhaka, Bangladesh
| | - Allen Seylani
- National Heart, Lung, and Blood Institute, National Institute of Health, Rockville, MD, USA
| | - Jasvinder A. Singh
- School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
- Medicine Service, US Department of Veterans Affairs (VA), Birmingham, AL, USA
| | - Jingkai Wei
- Department of Epidemiology and Biostatistics, University of South Carolina, Columbia, SC, USA
| | - Lin Yang
- Cancer Epidemiology and Prevention Research, Alberta Health Services, Calgary, BC, Canada
- Department of Oncology, University of Calgary, Calgary, AB, Canada
| | - Kanyin Liane Ong
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | - Jaimie D. Steinmetz
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
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Feder K, Marro L, Portnuff C. Leisure noise exposure and hearing outcomes among Canadians aged 6 to 79 years. Int J Audiol 2023; 62:1031-1047. [PMID: 36036440 DOI: 10.1080/14992027.2022.2114022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 08/12/2022] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To examine the association between individual and cumulative leisure noise exposure in addition to acceptable yearly exposure (AYE) and hearing outcomes among a nationally representative sample of Canadians. DESIGN Audiometry, distortion-product otoacoustic emissions (DPOAEs) and in-person questionnaires were used to evaluate hearing and leisure noise exposure across age, sex, and household income/education level. High-risk cumulative leisure noise exposure was defined as 85 dBA or greater for 40 h or more per week, with AYE calculations also based on this occupational limit. STUDY SAMPLE A randomised sample of 10,460 respondents, aged 6-79, completed questionnaires and hearing evaluations between 2012 and 2015. RESULTS Among 50-79 year olds, high-risk cumulative leisure noise was associated with increased odds of a notch while high exposure to farming/construction equipment noise was associated with hearing loss, notches and absent DPOAEs. No associations with hearing loss were found however, non-significant tendencies observed included higher mean hearing thresholds, notches and hearing loss odds. CONCLUSION Educational outreach and monitoring of hearing among young and middle-aged populations exposed to hazardous leisure noise would be beneficial.
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Affiliation(s)
- Katya Feder
- Non-Ionizing Radiation Health Sciences Division, Health Canada, Ottawa, Ontario, Canada
- School of Rehabilitation Sciences, Audiology & Speech-Language Pathology Program, University of Ottawa, Ottawa, Ontario, Canada
| | - Leonora Marro
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, Ontario, Canada
| | - Cory Portnuff
- UCHealth Hearing and Balance Clinic, Aurora, CO, USA
- Otolaryngology, University of Colorado School of Medicine, Aurora, CO, USA
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Balk SJ, Bochner RE, Ramdhanie MA, Reilly BK. Preventing Excessive Noise Exposure in Infants, Children, and Adolescents. Pediatrics 2023; 152:e2023063752. [PMID: 37864407 DOI: 10.1542/peds.2023-063752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/27/2023] [Indexed: 10/22/2023] Open
Abstract
Noise affects people of all ages. Noise-induced hearing loss, a major problem for adults, is also a problem for young people. Sensorineural hearing loss is usually irreversible. Environmental noise, such as traffic noise, can affect learning, physiologic parameters, sleep, and quality of life. Children and adolescents have unique vulnerabilities. Infants and young children must rely on adults to remove them from noisy situations; children may not recognize hazardous noise exposures; teenagers often do not understand consequences of high exposure to music from personal listening devices or attending concerts and dances. Personal listening devices are increasingly used, even by small children. Environmental noise has disproportionate effects on underserved communities. This statement and its accompanying technical report review common sources and effects of noise as well as specific pediatric exposures. Because noise exposure often starts in infancy and effects are cumulative, more attention to noise in everyday activities is needed starting early in life. Pediatricians can potentially lessen harms by raising awareness of children's specific vulnerabilities to noise. Safer listening is possible. Noise exposure is underrecognized as a serious public health issue in the United States. Greater awareness of noise hazards is needed at a societal level.
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Affiliation(s)
- Sophie J Balk
- Children's Hospital at Montefiore, Albert Einstein College of Medicine, Bronx, New York
| | - Risa E Bochner
- Department of Pediatrics, New York City Health and Hospitals Harlem, Columbia University Vagelos College of Physicians and Surgeons, New York, New York
| | | | - Brian K Reilly
- Otolaryngology and Pediatrics, George Washington University Medical School, Children's National Hospital, Washington, District of Columbia
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Themann CL, Masterson EA, Peterson JS, Murphy WJ. Preventing Occupational Hearing Loss: 50 Years of Research and Recommendations from the National Institute for Occupational Safety and Health. Semin Hear 2023; 44:351-393. [PMID: 37818146 PMCID: PMC10562059 DOI: 10.1055/s-0043-1769499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/12/2023] Open
Abstract
For more than 50 years, the National Institute for Occupational Safety and Health (NIOSH), part of the United States (U.S.) Centers for Disease Control and Prevention (CDC), has been actively working to reduce the effects of noise and ototoxic chemicals on worker hearing. NIOSH has pioneered basic and applied research on occupational hearing risks and preventive measures. The Institute has issued recommendations and promoted effective interventions through mechanisms ranging from formal criteria documents to blogs and social media. NIOSH has conducted surveillance and published statistics to guide policy and target prevention efforts. Over the past five decades, substantial progress has been made in raising awareness of noise as a hazard, reducing the risk of occupational hearing loss, improving the use of hearing protection, and advancing measurement and control technologies. Nevertheless, noise remains a prevalent workplace hazard and occupational hearing loss is still one of the most common work-related conditions. NIOSH continues to work toward preventing the effects of noise and ototoxicants at work and has many resources to assist audiologists in their hearing loss prevention efforts.
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Affiliation(s)
- Christa L. Themann
- Noise and Bioacoustics Team, National Institute for Occupational Safety and Health, Cincinnati, Ohio
| | - Elizabeth A. Masterson
- Division of Field Studies and Engineering, National Institute for Occupational Safety and Health, Cincinnati, Ohio
| | - Jeffrey Shawn Peterson
- Pittsburgh Mining Research Division, National Institute for Occupational Safety and Health, Pittsburgh, Pennsylvania
| | - William J. Murphy
- Noise and Bioacoustics Team, National Institute for Occupational Safety and Health, Cincinnati, Ohio
- Stephenson and Stephenson Research and Consulting, LLC, Batavia, Ohio
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12
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Balk SJ, Bochner RE, Ramdhanie MA, Reilly BK. Preventing Excessive Noise Exposure in Infants, Children, and Adolescents. Pediatrics 2023; 152:e2023063753. [PMID: 37864408 DOI: 10.1542/peds.2023-063753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/27/2023] [Indexed: 10/22/2023] Open
Abstract
Noise exposure is a major cause of hearing loss in adults. Yet, noise affects people of all ages, and noise-induced hearing loss is also a problem for young people. Sensorineural hearing loss caused by noise and other toxic exposures is usually irreversible. Environmental noise, such as traffic noise, can affect learning, physiologic parameters, and quality of life. Children and adolescents have unique vulnerabilities to noise. Children may be exposed beginning in NICUs and well-baby nurseries, at home, at school, in their neighborhoods, and in recreational settings. Personal listening devices are increasingly used, even by small children. Infants and young children cannot remove themselves from noisy situations and must rely on adults to do so, children may not recognize hazardous noise exposures, and teenagers generally do not understand the consequences of high exposure to music from personal listening devices or attending concerts and dances. Environmental noise exposure has disproportionate effects on underserved communities. In this report and the accompanying policy statement, common sources of noise and effects on hearing at different life stages are reviewed. Noise-abatement interventions in various settings are discussed. Because noise exposure often starts in infancy and its effects result mainly from cumulative exposure to loud noise over long periods of time, more attention is needed to its presence in everyday activities starting early in life. Listening to music and attending dances, concerts, and celebratory and other events are sources of joy, pleasure, and relaxation for many people. These situations, however, often result in potentially harmful noise exposures. Pediatricians can potentially lessen exposures, including promotion of safer listening, by raising awareness in parents, children, and teenagers. Noise exposure is underrecognized as a serious public health issue in the United States, with exposure limits enforceable only in workplaces and not for the general public, including children and adolescents. Greater awareness of noise hazards is needed at a societal level.
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Affiliation(s)
- Sophie J Balk
- Children's Hospital at Montefiore, Albert Einstein College of Medicine, Bronx, New York
| | - Risa E Bochner
- Department of Pediatrics, New York City Health and Hospitals Harlem, Columbia University Vagelos College of Physicians and Surgeons, New York, New York
| | | | - Brian K Reilly
- Otolaryngology and Pediatrics, George Washington University Medical School, Children's National Hospital, Washington, District of Columbia
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13
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Le Prell CG. Preclinical prospects of investigational agents for hearing loss treatment. Expert Opin Investig Drugs 2023; 32:685-692. [PMID: 37695693 DOI: 10.1080/13543784.2023.2253141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 08/25/2023] [Indexed: 09/13/2023]
Abstract
INTRODUCTION : Hearing loss has a high prevalence, with aging, noise exposure, ototoxic drug therapies, and genetic mutations being some of the leading causes of hearing loss. Health conditions such as cardiovascular disease and diabetes are associated with hearing loss, perhaps due to shared vascular pathology in the ear and in other tissues. AREAS COVERED : Issues in the design of preclinical research preclude the ability to make comparisons regarding the relative efficacy of different drugs of interest for possible hearing loss prevention or hearing restoration. This has not slowed the advancement of candidate therapeutics into human clinical testing. There is a robust pipeline with drugs that have different mechanisms of action providing diverse candidate therapies and opportunities for combination therapies to be considered. EXPERT OPINION : Much of the preclinical research literature lacks standard study design elements such as dose response testing, and lack of standardization of test protocols significantly limits conclusions regarding relative efficacy. Nonetheless, the many positive results to date have supported translation of preclinical efforts into clinical trials assessing potential human benefits. Approval of the first hearing loss prevention therapeutic is a major success, providing a pathway for other drugs to follow.
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Affiliation(s)
- Colleen G Le Prell
- Department of Speech, Language, and Hearing, University of Texas at Dallas, Richardson, TX, USA
- Callier Center for Communication Disorders, University of Texas at Dallas, Dallas, TX, USA
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14
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Wang Q, Wang X, Yang T, Yang L, Liu H, Zheng Y, Jiang G, Liu H, Huang C, Chen J, Wang Z, Wang Z, Zhao W, Lin J, Zhang X, Shi J, Han K, Le X, Ren Y, Li Y, Hong Y, Shi W, Cui D, Qian M, Xu J, Zheng X, Gao Y, Li C, Lin J, Huang Z, Wu H. A common variant in AAK1 reduces risk of noise-induced hearing loss. Natl Sci Rev 2023; 10:nwad080. [PMID: 37547059 PMCID: PMC10401317 DOI: 10.1093/nsr/nwad080] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 03/14/2023] [Accepted: 03/17/2023] [Indexed: 08/08/2023] Open
Affiliation(s)
| | | | - Tao Yang
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, China
| | - Lu Yang
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, China
| | - Huihui Liu
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, China
| | - Yihang Zheng
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, China
| | - Guixian Jiang
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, China
| | - Hongchao Liu
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, China
| | - Chenhui Huang
- Shanghai Institute of Precision Medicine, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
| | - Juan Chen
- Shanghai Institute of Precision Medicine, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
| | - Zhentao Wang
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, China
| | - Zhaoyan Wang
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, China
| | - Wei Zhao
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, China
| | - Jiannan Lin
- The Core Laboratory in the Medical Center of Clinical Research, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
| | - Xuejie Zhang
- Biobank, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
| | - Junbo Shi
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, China
| | - Kun Han
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, China
| | - Xingyu Le
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, China
| | - Yan Ren
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, China
| | - Yun Li
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, China
| | - Yingying Hong
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, China
| | - Wentao Shi
- Clinical Research Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
| | - Dongqi Cui
- Clinical Research Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
| | - Minfei Qian
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, China
| | - Jun Xu
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, China
| | - Xiaofei Zheng
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, China
| | - Yunge Gao
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, China
| | - Chen Li
- Network and Information Center, Shanghai Jiao Tong University, China
| | - James Lin
- Network and Information Center, Shanghai Jiao Tong University, China
| | | | - Hao Wu
- Corresponding authors. E-mail:
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15
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Zhang H, Fang Q, Li M, Yang L, Lai X, Wang H, He M, Wang Z, Kong W, Zhang X. Hearing loss increases all-cause and cardiovascular mortality in middle-aged and older Chinese adults: the Dongfeng-Tongji Cohort Study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27878-2. [PMID: 37268810 DOI: 10.1007/s11356-023-27878-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 05/19/2023] [Indexed: 06/04/2023]
Abstract
We aimed to investigate the association between hearing loss and all-cause and cardiovascular disease (CVD) mortality, and whether the relationship could be modified by chronic conditions in middle-aged and older Chinese adults. We selected 18,625 participants who underwent audiometry in 2013 from the Dongfeng-Tongji Cohort conducted in China, and followed them until December 2018. Hearing loss was grouped as normal, mild, and moderate or severe by pure-tone hearing threshold at speech (0.5, 1, and 2 kHz) and high frequency (4 and 8 kHz). We applied Cox regression models to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) for all-cause and CVD mortality. Among the 18,625 participants, the mean age was 64.6 (range: 36.7-93.0) years, and 56.2% were women. A total of 1185 died, with 420 CVD deaths during a mean follow-up period of 5.5 years. The adjusted HR for all-cause and CVD mortality increased gradually with the increasing hearing threshold (All p for trend < 0.05). Compared to participants with normal hearing at speech frequency, the adjusted HRs (95% CIs) of moderate or severe hearing loss were 1.42 (1.21-1.67), 1.44 (1.10-1.89), and 1.92 (1.21-3.04) for all-cause, CVD, and stroke mortality, respectively. While moderate or severe hearing loss at high frequency was only related to an increased risk of all-cause mortality (HR, 1.60; 95% CI, 1.18-2.17). The associations were generally consistent across subgroups (All p for interaction > 0.05). Additionally, individuals with a combination of moderate or severe hearing loss and occupational noise exposure, diabetes, or hypertension had higher risk of all-cause or CVD mortality, ranging from 1.45 to 2.78. In conclusion, hearing loss was independently associated with an increased risk of all-cause and CVD mortality, in a dose-response manner. Meanwhile, hearing loss and diabetes or hypertension could jointly increase the risk of all-cause and CVD mortality.
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Affiliation(s)
- Haiqing Zhang
- Department of Occupational and Environmental Health, Ministry of Education Key Laboratory of Environment and Health, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, School of Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Rd., Wuhan, 430030, Hubei, China
| | - Qin Fang
- Department of Medical Affairs, Zhuhai People's Hospital (Zhuhai Hospital Affiliated With Jinan University), Zhuhai, Guangdong, China
| | - Meng Li
- Department of Occupational and Environmental Health, Ministry of Education Key Laboratory of Environment and Health, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, School of Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Rd., Wuhan, 430030, Hubei, China
| | - Liangle Yang
- Department of Occupational and Environmental Health, Ministry of Education Key Laboratory of Environment and Health, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, School of Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Rd., Wuhan, 430030, Hubei, China
| | - Xuefeng Lai
- Department of Occupational and Environmental Health, Ministry of Education Key Laboratory of Environment and Health, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, School of Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Rd., Wuhan, 430030, Hubei, China
| | - Hao Wang
- Department of Occupational and Environmental Health, Ministry of Education Key Laboratory of Environment and Health, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, School of Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Rd., Wuhan, 430030, Hubei, China
| | - Meian He
- Department of Occupational and Environmental Health, Ministry of Education Key Laboratory of Environment and Health, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, School of Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Rd., Wuhan, 430030, Hubei, China
| | - Zhichao Wang
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Weijia Kong
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaomin Zhang
- Department of Occupational and Environmental Health, Ministry of Education Key Laboratory of Environment and Health, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, School of Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Rd., Wuhan, 430030, Hubei, China.
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16
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Natarajan N, Batts S, Stankovic KM. Noise-Induced Hearing Loss. J Clin Med 2023; 12:2347. [PMID: 36983347 PMCID: PMC10059082 DOI: 10.3390/jcm12062347] [Citation(s) in RCA: 32] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/10/2023] [Accepted: 03/14/2023] [Indexed: 03/22/2023] Open
Abstract
Noise-induced hearing loss (NIHL) is the second most common cause of sensorineural hearing loss, after age-related hearing loss, and affects approximately 5% of the world's population. NIHL is associated with substantial physical, mental, social, and economic impacts at the patient and societal levels. Stress and social isolation in patients' workplace and personal lives contribute to quality-of-life decrements which may often go undetected. The pathophysiology of NIHL is multifactorial and complex, encompassing genetic and environmental factors with substantial occupational contributions. The diagnosis and screening of NIHL are conducted by reviewing a patient's history of noise exposure, audiograms, speech-in-noise test results, and measurements of distortion product otoacoustic emissions and auditory brainstem response. Essential aspects of decreasing the burden of NIHL are prevention and early detection, such as implementation of educational and screening programs in routine primary care and specialty clinics. Additionally, current research on the pharmacological treatment of NIHL includes anti-inflammatory, antioxidant, anti-excitatory, and anti-apoptotic agents. Although there have been substantial advances in understanding the pathophysiology of NIHL, there remain low levels of evidence for effective pharmacotherapeutic interventions. Future directions should include personalized prevention and targeted treatment strategies based on a holistic view of an individual's occupation, genetics, and pathology.
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Affiliation(s)
- Nirvikalpa Natarajan
- Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Palo Alto, CA 94304, USA
| | - Shelley Batts
- Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Palo Alto, CA 94304, USA
| | - Konstantina M. Stankovic
- Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Palo Alto, CA 94304, USA
- Department of Neurosurgery, Stanford University School of Medicine, Palo Alto, CA 94304, USA
- Wu Tsai Neuroscience Institute, Stanford University, Stanford, CA 94305, USA
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17
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Reavis KM, Bisgaard N, Canlon B, Dubno JR, Frisina RD, Hertzano R, Humes LE, Mick P, Phillips NA, Pichora-Fuller MK, Shuster B, Singh G. Sex-Linked Biology and Gender-Related Research Is Essential to Advancing Hearing Health. Ear Hear 2023; 44:10-27. [PMID: 36384870 PMCID: PMC10234332 DOI: 10.1097/aud.0000000000001291] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Accepted: 08/29/2022] [Indexed: 11/18/2022]
Abstract
There is robust evidence that sex (biological) and gender (behavioral/social) differences influence hearing loss risk and outcomes. These differences are noted for animals and humans-in the occurrence of hearing loss, hearing loss progression, and response to interventions. Nevertheless, many studies have not reported or disaggregated data by sex or gender. This article describes the influence of sex-linked biology (specifically sex-linked hormones) and gender on hearing and hearing interventions, including the role of sex-linked biology and gender in modifying the association between risk factors and hearing loss, and the effects of hearing loss on quality of life and functioning. Most prevalence studies indicate that hearing loss begins earlier and is more common and severe among men than women. Intrinsic sex-linked biological differences in the auditory system may account, in part, for the predominance of hearing loss in males. Sex- and gender-related differences in the effects of noise exposure or cardiovascular disease on the auditory system may help explain some of these differences in the prevalence of hearing loss. Further still, differences in hearing aid use and uptake, and the effects of hearing loss on health may also vary by sex and gender. Recognizing that sex-linked biology and gender are key determinants of hearing health, the present review concludes by emphasizing the importance of a well-developed research platform that proactively measures and assesses sex- and gender-related differences in hearing, including in understudied populations. Such research focus is necessary to advance the field of hearing science and benefit all members of society.
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Affiliation(s)
- Kelly M. Reavis
- VA RR&D National Center for Rehabilitative Auditory Research, VA Portland Health Care System, Portland, Oregon, USA
- OHSU-PSU School of Public Health, Oregon Health & Science University, Portland, Oregon, USA
| | | | - Barbara Canlon
- Department of Physiology and Pharmacology, Karolinska Institute, Stockholm, Sweden
| | - Judy R. Dubno
- Department of Otolaryngology-Head and Neck Surgery, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Robert D. Frisina
- Department of Medical Engineering and Communication Sciences & Disorders, University of South Florida, Tampa, Florida, USA
| | - Ronna Hertzano
- Department of Otorhinolaryngology Head and Neck Surgery, University of Maryland School of Medicine, Baltimore, Maryland, USA
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, Maryland, USA
- Institute for Genome Science, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Larry E. Humes
- Department of Speech, Language and Hearing Sciences, Indiana University, Bloomington, Indiana, USA
| | - Paul Mick
- Department of Surgery, College of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | | | | | - Benjamin Shuster
- Department of Otorhinolaryngology Head and Neck Surgery, University of Maryland School of Medicine, Baltimore, Maryland, USA
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Eichwald J, Themann CL, Kardous CCA, Carroll Y. Why Are Noise Exposure Guidelines So Complex? THE HEARING JOURNAL 2022; 75:18-21. [PMID: 37215299 PMCID: PMC10194210 DOI: 10.1097/01.hj.0000891492.30490.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Affiliation(s)
- John Eichwald
- Office of Science at the Centers for Disease Control and Prevention (CDC) National Center for Environmental Health (NCEH)
| | - Christa L Themann
- Noise and Bioacoustics Team at the CDC/NIOSH Division of Field Studies and Engineering
| | - Chucri Chuck A Kardous
- USPHS and former research engineer with Noise and Bioacoustics Team at the CDC/NIOSH Division of Field Studies and Engineering
| | - Yulia Carroll
- Science at the CDC/NCEH Division for Environmental Health Science and Practice
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Wilson P, Apawu AK. Deafening noise down-regulates dopamine transmission in the hub of the central auditory system. Neurochem Int 2022; 159:105382. [DOI: 10.1016/j.neuint.2022.105382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 06/03/2022] [Accepted: 06/26/2022] [Indexed: 10/17/2022]
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Zhou L, Ruan X, Wang T, Xie H, Hu Y, Shi Z, Xin J, Zhou J, Xue P, Wei F, Zhang Y, Zhang M, Zou H. Epidemiological characteristics of hearing loss associated with noise temporal structure among manufacturing workers. Front Integr Neurosci 2022; 16:978213. [PMID: 36159088 PMCID: PMC9492878 DOI: 10.3389/fnint.2022.978213] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Accepted: 08/15/2022] [Indexed: 11/15/2022] Open
Abstract
Objective: This study aimed to investigate the epidemiological characteristics of occupational noise-induced hearing loss (NIHL) among manufacturing workers, and to provide evidence for diagnosing and preventing occupational hearing loss caused by complex noise, which is different from Gaussian noise in temporal structure. Methods: One thousand and fifty manufacturing workers exposed to occupational noise were recruited in a cross-sectional survey. Exposure characteristics and epidemiological distribution of hearing loss and noise exposure metrics (noise energy and kurtosis) were investigated, and the relationship between noise exposure and hearing loss was analyzed. The effects of kurtosis on hearing threshold shift across different frequencies and on NIHL development with exposure duration and noise intensity were also investigated. Results: Each type of work had specific noise exposure metrics. Noise intensity and kurtosis were independent parameters (r = −0.004, p = 0.885). The prevalence of NIHL and the hearing threshold level had a specific distribution in different types of work. Kurtosis deepened the hearing notch at high frequencies and accelerated the formation of early hearing loss. The effect of exposure duration and noise intensity on the prevalence of high-frequency NIHL (i.e., at 3, 4, 6, and 8 kHz) for manufacturing workers increased with kurtosis in workers with noise exposure duration of less than 10 years and with LAeq.8h between 80 and 90 dB(A). Male (OR = 1.557, 95%CI = 1.141–2.124), age (OR = 1.033, 95%CI = 1.014–1.052), exposure duration (OR = 1.072, 95%CI = 1.038–1.107), kurtosis (OR = 1.002, 95%CI = 1.001–1.003), and noise intensity (LAeq.8h; OR = 1.064, 95%CI = 1.044–1.084) were risk factors for high-frequency NIHL. The speech-frequency NIHL (i.e., at 0.5, 1, and 2 kHz) risk of workers exposed to manufacturing noise was related to age (OR = 1.071, 95%CI = 1.043–1.100). There were no statistically significant associations between speech-frequency NIHL and sex, noise exposure duration, kurtosis, and noise intensity (LAeq.8h). Conclusion: The high-frequency NIHL prevalence among manufacturing workers is associated with sex, age, exposure duration, noise intensity, and temporal structure of noise, while the speech-frequency NIHL prevalence is associated with age. Kurtosis strengthens the association of noise exposure duration and noise intensity with high-frequency hearing loss. The influence of noise temporal structure should be considered in the diagnosis and early prevention of occupational hearing loss caused by complex noise.
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Affiliation(s)
- Lifang Zhou
- Institute of Occupational Health and Radiation Protection, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Xiaoying Ruan
- Department of Occupational Health, Hangzhou Hospital for Prevention and Treatment of Occupational Disease, Hangzhou, China
| | - Tongshuai Wang
- Clinical and Translational Research Center, Tongji University School of Medicine, Shanghai, China
| | - Hongwei Xie
- Institute of Occupational Health and Radiation Protection, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Yong Hu
- Institute of Occupational Health and Radiation Protection, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Zhihao Shi
- Jiaxing Center for Disease Control and Prevention, Jiaxing, China
| | - Jiarui Xin
- National Institute of Occupational Health and Poison Control, Beijing, China
| | - Jiena Zhou
- Department of Public Health, Zhejiang University School of Medicine, Hangzhou, China
| | - Panqi Xue
- Institute of Occupational Health and Radiation Protection, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Fang Wei
- Institute of Occupational Health and Radiation Protection, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Yixin Zhang
- School of Medicine, Hangzhou Normal University, Hangzhou, China
| | - Meibian Zhang
- National Institute of Occupational Health and Poison Control, Beijing, China
- *Correspondence: Hua Zou Meibian Zhang
| | - Hua Zou
- Institute of Occupational Health and Radiation Protection, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
- *Correspondence: Hua Zou Meibian Zhang
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21
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Chen XM, Xue XM, Yu N, Guo WW, Yuan SL, Jiang QQ, Yang SM. The Role of Genetic Variants in the Susceptibility of Noise-Induced Hearing Loss. Front Cell Neurosci 2022; 16:946206. [PMID: 35903368 PMCID: PMC9315435 DOI: 10.3389/fncel.2022.946206] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 06/17/2022] [Indexed: 11/24/2022] Open
Abstract
Noised-induced hearing loss (NIHL) is an acquired, progressive neurological damage caused by exposure to intense noise in various environments including industrial, military and entertaining settings. The prevalence of NIHL is much higher than other occupational injuries in industrialized countries. Recent studies have revealed that genetic factors, together with environmental conditions, also contribute to NIHL. A group of genes which are linked to the susceptibility of NIHL had been uncovered, involving the progression of oxidative stress, potassium ion cycling, cilia structure, heat shock protein 70 (HSP70), DNA damage repair, apoptosis, and some other genes. In this review, we briefly summarized the studies primary in population and some animal researches concerning the susceptible genes of NIHL, intending to give insights into the further exploration of NIHL prevention and individual treatment.
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Affiliation(s)
- Xue-min Chen
- Medical School of Chinese PLA, Beijing, China
- Senior Department of Otolaryngology-Head & Neck Surgery, Chinese PLA General Hospital, Beijing, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing, China
- State Key Lab of Hearing Science, Ministry of Education, Beijing, China
- Beijing Key Lab of Hearing Impairment Prevention and Treatment, Beijing, China
| | - Xin-miao Xue
- Medical School of Chinese PLA, Beijing, China
- Senior Department of Otolaryngology-Head & Neck Surgery, Chinese PLA General Hospital, Beijing, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing, China
- State Key Lab of Hearing Science, Ministry of Education, Beijing, China
- Beijing Key Lab of Hearing Impairment Prevention and Treatment, Beijing, China
| | - Ning Yu
- Senior Department of Otolaryngology-Head & Neck Surgery, Chinese PLA General Hospital, Beijing, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing, China
- State Key Lab of Hearing Science, Ministry of Education, Beijing, China
- Beijing Key Lab of Hearing Impairment Prevention and Treatment, Beijing, China
| | - Wei-wei Guo
- Senior Department of Otolaryngology-Head & Neck Surgery, Chinese PLA General Hospital, Beijing, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing, China
- State Key Lab of Hearing Science, Ministry of Education, Beijing, China
- Beijing Key Lab of Hearing Impairment Prevention and Treatment, Beijing, China
| | - Shuo-long Yuan
- Senior Department of Otolaryngology-Head & Neck Surgery, Chinese PLA General Hospital, Beijing, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing, China
- State Key Lab of Hearing Science, Ministry of Education, Beijing, China
- Beijing Key Lab of Hearing Impairment Prevention and Treatment, Beijing, China
| | - Qing-qing Jiang
- Senior Department of Otolaryngology-Head & Neck Surgery, Chinese PLA General Hospital, Beijing, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing, China
- State Key Lab of Hearing Science, Ministry of Education, Beijing, China
- Beijing Key Lab of Hearing Impairment Prevention and Treatment, Beijing, China
| | - Shi-ming Yang
- Senior Department of Otolaryngology-Head & Neck Surgery, Chinese PLA General Hospital, Beijing, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing, China
- State Key Lab of Hearing Science, Ministry of Education, Beijing, China
- Beijing Key Lab of Hearing Impairment Prevention and Treatment, Beijing, China
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22
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Roberts B, Jacobs N, Mathis C, Reamer H, Kardous CC, Gaffney S, L Neitzel R. Evaluation of a wearable consumer noise measurement device in a laboratory setting. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2022; 152:547. [PMID: 35931541 DOI: 10.1121/10.0012916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
Exposure to noise occurs throughout daily life and, depending on the intensity, duration, and context, can lead to hearing loss, disturbed sleep, decreased academic achievement, and other negative health outcomes. Recently, smartwatches that use the device's onboard microphone to measure noise levels were released. This study evaluated the accuracy of these smartwatches in a controlled laboratory setting. For broadband pink noise, a total of 11 441 measurements were collected. The results showed that, on average, the smartwatch reported 3.4 dBA lower than the reference system on average. For the octave-band, a total of 18 449 measurements were collected. The smartwatch measured lower than the reference microphone from the 125 Hz to 1000 Hz octave bands, were somewhat in agreement at 2000 Hz, measured higher sound pressure levels than the reference microphone at 4000 Hz, and then lower at 8000 Hz. Despite not meeting the ANSI criteria for sound level meters, in some cases, these smartwatches still provide a reasonable degree of accuracy and have the potential for use in studies that require the measurement of personal noise exposure over an extended period.
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Affiliation(s)
- Benjamin Roberts
- Cardno ChemRisk, 205 West Wacker Drive, Suite 1500, Chicago, Illinois 60606, USA
| | - Neva Jacobs
- Cardno ChemRisk, 2111 Wilson Boulevard, Suite 200, Arlington, Virginia 22201, USA
| | - Claire Mathis
- Cardno ChemRisk, 2111 Wilson Boulevard, Suite 200, Arlington, Virginia 22201, USA
| | - Heidi Reamer
- Cardno ChemRisk, 205 West Wacker Drive, Suite 1500, Chicago, Illinois 60606, USA
| | - Chucri Chuck Kardous
- National Institute for Occupational Safety and Health, 1090 Tusculum Avenue, Cincinnati, Ohio 45226, USA
| | - Shannon Gaffney
- Cardno ChemRisk, 235 Pine Street, Suite 2300, San Francisco, California 94105, USA
| | - Richard L Neitzel
- University of Michigan School of Public Health, 1415 Washington Heights, Ann Arbor, Michigan 48109, USA
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Ren H, Hu B, Jiang G. Advancements in prevention and intervention of sensorineural hearing loss. Ther Adv Chronic Dis 2022; 13:20406223221104987. [PMID: 35782345 PMCID: PMC9243368 DOI: 10.1177/20406223221104987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 05/16/2022] [Indexed: 11/28/2022] Open
Abstract
The inner ear is a complex and difficult organ to study, and sensorineural hearing loss (SNHL) is a multifactorial sensorineural disorder with characteristics of impaired speech discrimination, recognition, sound detection, and localization. Till now, SNHL is recognized as an incurable disease because the potential mechanisms underlying SNHL have not been elucidated. The risk of developing SNHL is no longer viewed as primarily due to environmental factors. Instead, SNHL seems to result from a complicated interplay of genetic and environmental factors affecting numerous fundamental cellular processes. The complexity of SNHL is presented as an inability to make an early diagnosis at the earliest stages of the disease and difficulties in the management of symptoms during the process. To date, there are no treatments that slow the neurodegenerative process. In this article, we review the recent advances about SHNL and discuss the complexities and challenges of prevention and intervention of SNHL.
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Affiliation(s)
- Hongmiao Ren
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong, P.R. China
| | - Bing Hu
- Department of Otolaryngology Head and Neck Surgery, The First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
| | - Guangli Jiang
- Otorhinolaryngology Hospital, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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24
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Le Prell CG. Prevention of Noise-Induced Hearing Loss Using Investigational Medicines for the Inner Ear: Previous Trial Outcomes Should Inform Future Trial Design. Antioxid Redox Signal 2022; 36:1171-1202. [PMID: 34346254 PMCID: PMC9221155 DOI: 10.1089/ars.2021.0166] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 07/25/2021] [Indexed: 11/13/2022]
Abstract
Significance: Noise-induced hearing loss (NIHL) is an important public health issue resulting in decreased quality of life for affected individuals, and significant costs to employers and governmental agencies. Recent Advances: Advances in the mechanistic understanding of NIHL have prompted a growing number of proposed, in-progress, and completed clinical trials for possible protections against NIHL via antioxidants and other drug agents. Thirty-one clinical trials evaluating prevention of either temporary or permanent NIHL were identified and are reviewed. Critical Issues: This review revealed little consistency in the noise-exposed populations in which drugs are evaluated or the primary outcomes used to measure NIHL prevention. Changes in pure-tone thresholds were the most common primary outcomes; specific threshold metrics included both average hearing loss and incidence of significant hearing loss. Changes in otoacoustic emission (OAE) amplitude were relatively common secondary outcomes. Extended high-frequency (EHF) hearing and speech-in-noise perception are commonly adversely affected by noise exposure but are not consistently included in clinical trials assessing prevention of NIHL. Future Directions: Multiple criteria are available for monitoring NIHL, but the specific criterion to be used to define clinically significant otoprotection remains a topic of discussion. Audiogram-based primary outcome measures can be combined with secondary outcomes, including OAE amplitude, EHF hearing, speech-in-noise testing, tinnitus surveys, and patient-reported outcomes. Standardization of test protocols for the above primary and secondary outcomes, and associated reporting criterion for each, would facilitate clinical trial design and comparison of results across investigational drug agents. Antioxid. Redox Signal. 36, 1171-1202.
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Affiliation(s)
- Colleen G. Le Prell
- Department of Speech, Language, and Hearing Science, University of Texas at Dallas, Richardson, Texas, USA
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25
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Liu T, Cao L, Lv P, Bai S. Associations between household solid fuel use and hearing loss in a Chinese population: A population-based prospective cohort study. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 236:113506. [PMID: 35421824 DOI: 10.1016/j.ecoenv.2022.113506] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 04/04/2022] [Accepted: 04/07/2022] [Indexed: 06/14/2023]
Abstract
Hearing loss, a common chronic condition, severely affects the quality of human life. However, the longitudinal relationships between household solid fuel use and hearing loss are unclear. To explore the associations between household solid fuel use and hearing loss in a Chinese population. There were 8835 participants enrolled in this prospective cohort study. Hearing function was assessed by asking the following self-reported question. Cox proportional hazards regression models were used to examine the relationships between baseline household solid fuel use and hearing loss incidence. After 6 (range, 2-7) years of follow-up, 1654 (18.72%) of 8835 participants developed hearing loss. This study demonstrated that increasing baseline solid fuel exposure was associated with a higher rate of poor hearing function (P for trend < 0.01). Compared with the clean fuel group (both cooking and heating), the hazard ratios (HR) (95% confidence intervals) of poor hearing function for the solid fuel group (cooking or heating) and both solid fuel groups (both cooking and heating) were 1.17 (1.01, 1.37) and 1.26 (1.09, 1.45) after adjustments, respectively. In subgroup analysis of household energy sources, the use of solid fuels for both heating (HR, 1.21; 1.07, 1.37) and cooking (HR, 1.12; 1.01, 1.26) was related to a higher incidence of poor hearing function. In subgroup analysis of place of residence, more solid fuel use was associated with a higher rate of poor hearing function in urban communities (HR, 1.39; 1.12, 1.74) but not in rural villages (HR, 1.18; 0.97, 1.45). Moreover, compared with the population that used solid fuel for cooking at both baseline and follow-up, those who switched from solid to clean fuel had a lower risk of developing poor hearing function (HR, 0.54, 0.46-0.63). This study demonstrates that household solid fuel use is closely associated with poor hearing function. Programs that educate individuals on the effects of household fuel use on hearing function should be established, especially in urban communities.
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Affiliation(s)
- Tiancong Liu
- Department of Otolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang, China.
| | - Limin Cao
- The Third Central Hospital of Tianjin, Tianjin, China.
| | - Peng Lv
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang 110004, China.
| | - Song Bai
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang 110004, China.
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Fuentes-Santamaría V, Alvarado JC, Mellado S, Melgar-Rojas P, Gabaldón-Ull MC, Cabanes-Sanchis JJ, Juiz JM. Age-Related Inflammation and Oxidative Stress in the Cochlea Are Exacerbated by Long-Term, Short-Duration Noise Stimulation. Front Aging Neurosci 2022; 14:853320. [PMID: 35450058 PMCID: PMC9016828 DOI: 10.3389/fnagi.2022.853320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 03/14/2022] [Indexed: 12/29/2022] Open
Abstract
We have previously reported that young adult rats exposed to daily, short-duration noise for extended time periods, develop accelerated presbycusis starting at 6 months of age. Auditory aging is associated with progressive hearing loss, cell deterioration, dysregulation of the antioxidant defense system, and chronic inflammation, among others. To further characterize cellular and molecular mechanisms at the crossroads between noise and age-related hearing loss (ARHL), 3-month-old rats were exposed to a noise-accelerated presbycusis (NAP) protocol and tested at 6 and 16 months of age, using auditory brainstem responses, Real-Time Reverse Transcription-Quantitative PCR (RT-qPCR) and immunocytochemistry. Chronic noise-exposure leading to permanent auditory threshold shifts in 6-month-old rats, resulted in impaired sodium/potassium activity, degenerative changes in the lateral wall and spiral ganglion, increased lipid peroxidation, and sustained cochlear inflammation with advancing age. Additionally, at 6 months, noise-exposed rats showed significant increases in the gene expression of antioxidant enzymes (superoxide dismutase 1/2, glutathione peroxidase 1, and catalase) and inflammation-associated molecules [ionized calcium binding adaptor molecule 1, interleukin-1 beta (IL-1β), and tumor necrosis factor-alpha]. The levels of IL-1β were upregulated in the spiral ganglion and spiral ligament, particularly in type IV fibrocytes; these cells showed decreased levels of connective tissue growth factor and increased levels of 4-hydroxynonenal. These data provide functional, structural and molecular evidence that age-noise interaction contributes to exacerbating presbycusis in young rats by leading to progressive dysfunction and early degeneration of cochlear cells and structures. These findings contribute to a better understanding of NAP etiopathogenesis, which is essential as it affects the life quality of young adults worldwide.
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Affiliation(s)
- Verónica Fuentes-Santamaría
- Instituto de Investigación en Discapacidades Neurológicas (IDINE), Albacete, Spain
- Facultad de Medicina, Universidad de Castilla-La Mancha, Albacete, Spain
| | - Juan Carlos Alvarado
- Instituto de Investigación en Discapacidades Neurológicas (IDINE), Albacete, Spain
- Facultad de Medicina, Universidad de Castilla-La Mancha, Albacete, Spain
| | - Susana Mellado
- Instituto de Investigación en Discapacidades Neurológicas (IDINE), Albacete, Spain
- Facultad de Medicina, Universidad de Castilla-La Mancha, Albacete, Spain
| | - Pedro Melgar-Rojas
- Instituto de Investigación en Discapacidades Neurológicas (IDINE), Albacete, Spain
- Facultad de Medicina, Universidad de Castilla-La Mancha, Albacete, Spain
| | - María Cruz Gabaldón-Ull
- Instituto de Investigación en Discapacidades Neurológicas (IDINE), Albacete, Spain
- Facultad de Medicina, Universidad de Castilla-La Mancha, Albacete, Spain
| | - José J. Cabanes-Sanchis
- Instituto de Investigación en Discapacidades Neurológicas (IDINE), Albacete, Spain
- Facultad de Medicina, Universidad de Castilla-La Mancha, Albacete, Spain
| | - José M. Juiz
- Instituto de Investigación en Discapacidades Neurológicas (IDINE), Albacete, Spain
- Facultad de Medicina, Universidad de Castilla-La Mancha, Albacete, Spain
- Department of Otolaryngology, Hannover Medical School, NIFE-VIANNA, Cluster of Excellence Hearing4all-German Research Foundation, Hanover, Germany
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27
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Reel LA, Hicks CB, Arnold C. Noise Exposure and Use of Hearing Protection Among Adolescents in Rural Areas. Am J Audiol 2022; 31:32-44. [PMID: 34898248 DOI: 10.1044/2021_aja-20-00196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
PURPOSE Noise-induced hearing loss (NIHL) has been found in rural children, potentially due to occupational and recreational noise exposure without consistent use of hearing protection devices (HPDs). However, questions remain regarding the specifics of rural adolescents' noise exposure and use of hearing protection around different types of noise. As such, the purpose of the current study was to provide preliminary results on rural adolescents' noise exposure and use of hearing protection for gunfire, heavy machinery, power tools, all-terrain vehicles (ATVs), and music. METHOD A questionnaire was administered to 197 students (seventh to 12th grade) from rural schools in West Texas. Questions were related to noise exposure and use of HPDs for specific categories of noise. Testing was performed at the schools, with an investigator recording each student's responses. RESULTS Approximately 18%-44% of adolescents reported exposure 12 or more times a year to gunfire, heavy machinery, power tools, and ATVs. Only 1%-18% of the adolescents reported never being exposed to such noise sources. Almost half of rural adolescents never used hearing protection around gunfire, and 77%-91% reported never wearing hearing protection when exposed to heavy machinery, power tools, and ATVs. CONCLUSIONS The current study revealed that rural adolescents are exposed to noise sources that could damage their hearing. However, the majority of rural adolescents do not consistently wear hearing protection. Additional research is now needed to extend these findings by assessing rural adolescents' duration of exposure to different noise sources, in addition to investigating prevention of NIHL in this population. Supplemental Material https://doi.org/10.23641/asha.17139335.
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Affiliation(s)
- Leigh Ann Reel
- Department of Speech-Language and Hearing Sciences, Texas Tech University Health Sciences Center, Lubbock
| | - Candace Bourland Hicks
- Department of Speech-Language and Hearing Sciences, Texas Tech University Health Sciences Center, Lubbock
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28
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Neitzel RL, Smith L, Wang L, Green G, Block J, Carchia M, Mazur K, DePalma G, Azimi R, Villanueva B. Toward a better understanding of nonoccupational sound exposures and associated health impacts: Methods of the Apple Hearing Study. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2022; 151:1476. [PMID: 35364926 DOI: 10.1121/10.0009620] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 02/02/2022] [Indexed: 06/14/2023]
Abstract
Globally, noise exposure from occupational and nonoccupational sources is common, and, as a result, noise-induced hearing loss affects tens of millions of people. Occupational noise exposures have been studied and regulated for decades, but nonoccupational sound exposures are not well understood. The nationwide Apple Hearing Study, launched using the Apple research app in November 2019 (Apple Inc., Cupertino, CA), is characterizing the levels at which participants listen to headphone audio content, as well as their listening habits. This paper describes the methods of the study, which collects data from several types of hearing tests and uses the Apple Watch noise app to measure environmental sound levels and cardiovascular metrics. Participants, all of whom have consented to participate and share their data, have already contributed nearly 300 × 106 h of sound measurements and 200 000 hearing assessments. The preliminary results indicate that environmental sound levels have been higher, on average, than headphone audio, about 10% of the participants have a diagnosed hearing loss, and nearly 20% of the participants have hearing difficulty. The study's analyses will promote understanding of the overall exposures to sound and associated impacts on hearing and cardiovascular health. This study also demonstrates the feasibility of collecting clinically relevant exposure and health data outside of traditional research settings.
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Affiliation(s)
- Richard L Neitzel
- University of Michigan School of Public Health, Department of Environmental Health Sciences, Ann Arbor, Michigan 48109, USA
| | - Lauren Smith
- University of Michigan School of Public Health, Department of Environmental Health Sciences, Ann Arbor, Michigan 48109, USA
| | - Linyan Wang
- University of Michigan School of Public Health, Department of Environmental Health Sciences, Ann Arbor, Michigan 48109, USA
| | - Glenn Green
- Department of Otolaryngology-Head and Neck Surgery, University of Michigan, Michigan Medicine, Ann Arbor, Michigan, 48105, USA
| | | | | | - Kuba Mazur
- Apple Inc., Cupertino, California 95014, USA
| | | | - Reza Azimi
- Apple Inc., Cupertino, California 95014, USA
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Cass ND, Perkins EL, Bennett ML, Ricketts TA. Evaluating Risk of Noise-Induced Hearing Loss in Otologic Surgery. Ann Otol Rhinol Laryngol 2022; 132:35-40. [PMID: 35109716 DOI: 10.1177/00034894221075422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVES To evaluate risk for noise-induced hearing damage from otologic surgery-related noise exposure, given recent research indicating that noise levels previously believed to be safe and without long-term consequence may result in cochlear synaptopathy with subsequent degeneration of spiral ganglion neurons, degradation of neural transmission in response to suprathreshold acoustic stimuli, and difficulty understanding in background noise. METHODS A prospective observational study of surgeon noise exposure during otologic and neurotologic procedures was performed in a tertiary care center. Surgeon noise exposure was recorded in A- and C-weighted decibel scales (dBA, dBC), including average equivalent (LAeq) and peak (LApeak, LCpeak) levels and noise dose. RESULTS Sound measurements taken at the ear with continuous recording equipment during cadaveric otologic surgery demonstrated LAeq 80-83 dBA, LApeaks of 105 dBA, LCpeaks of 127 dBC, with noise doses of 0.9% to 6.7%. Sound level measurements during live surgery translabyrinthine approaches yielded lower LAeq of 72 to 74 dBA and lower noise doses compared with temporal bone lab measurements. Raw sound recordings during live surgery demonstrated narrow band, high frequency, high amplitude spikes between 4 and 12 kHz. CONCLUSION Noise exposure to surgeons, staff, and patients in the operating room is acceptable per NIOSH recommendations. Temporal bone lab noise exposures are greater, possibly due to poorly maintained drill systems and lack of noise shielding from microscope bulk, yet are also within NIOSH recommended levels.
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Affiliation(s)
- Nathan D Cass
- The Otology Group of Vanderbilt, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Elizabeth L Perkins
- The Otology Group of Vanderbilt, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Marc L Bennett
- The Otology Group of Vanderbilt, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Todd A Ricketts
- Department of Hearing and Speech Sciences, Vanderbilt University Medical Center, Nashville, TN, USA
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Murdin L, Sladen M, Williams H, Bamiou DE, Bibas A, Kikidis D, Oiknonomou A, Kouris I, Koutsouris D, Pontoppidan NH. EHealth and Its Role in Supporting Audiological Rehabilitation: Patient Perspectives on Barriers and Facilitators of Using a Personal Hearing Support System With Mobile Application as Part of the EVOTION Study. Front Public Health 2022; 9:669727. [PMID: 35118034 PMCID: PMC8805639 DOI: 10.3389/fpubh.2021.669727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 12/03/2021] [Indexed: 11/13/2022] Open
Abstract
BackgroundHearing loss is a major public health challenge. Audiology services need to utilise a range of rehabilitative services and maximise innovative practice afforded by technology to actively promote personalized, participatory, preventative and predictive care if they are to cope with the social and economic burden placed on the population by the rapidly rising prevalence of hearing loss. Digital interventions and teleaudiology could be a key part of providing high quality, cost-effective, patient-centred management. There is currently very limited evidence that assesses the hearing impaired patient perspective on the acceptance and usability of this type of technology.AimThis study aims to identify patient perceptions of the use of a hearing support system including a mobile smartphone app when used with Bluetooth-connected hearing aids across the everyday life of users, as part of the EVOTION project.MethodsWe applied a questionnaire to 564 participants in three countries across Europe and analysed the following topics: connectivity, hearing aid controls, instructional videos, audiological tests and auditory training.Key FindingsOlder users were just as satisfied as younger users when operating this type of technology. Technical problems such as Bluetooth connectivity need to be minimised as this issue is highly critical for user satisfaction, engagement and uptake. A system that promotes user-controllability of hearing aids that is more accessible and easier to use is highly valued. Participants are happy to utilise monitoring tests and auditory training on a mobile phone out of the clinic but in order to have value the test battery needs to be relevant and tailored to each user, easy to understand and use. Such functions can elicit a negative as well as positive experience for each user.ConclusionOlder and younger adults can utilise an eHealth mobile app to complement their rehabilitation and health care. If the technology works well, is tailored to the individual and in-depth personalised guidance and support is provided, it could assist maximisation of hearing aid uptake, promotion of self-management and improving outcomes.
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Affiliation(s)
- Louisa Murdin
- Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
- University College London, UCL Ear Insitute and UCLH Biomedical Research Centre, National Institute for Health Research, London, United Kingdom
- *Correspondence: Louisa Murdin
| | - Mark Sladen
- Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| | - Hannah Williams
- Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| | - Doris-Eva Bamiou
- University College London, UCL Ear Insitute and UCLH Biomedical Research Centre, National Institute for Health Research, London, United Kingdom
| | - Athanasios Bibas
- Department of Otorhinolaryngology - Head & Neck Surgery, National and Kapodistrian University of Athens, Athens, Greece
| | - Dimitris Kikidis
- Department of Otorhinolaryngology - Head & Neck Surgery, National and Kapodistrian University of Athens, Athens, Greece
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31
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Kashani MM, Dehabadi PK, Karamali F, Akbari H. Validation of Persian Version of Hyperacusis Questionnaire. Noise Health 2022; 24:191-197. [PMID: 36124529 PMCID: PMC9743311 DOI: 10.4103/nah.nah_16_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Background One of the most common hearing disorders is hyperacusis, characterized by decreased sound tolerance or noise sensitivity. Objective The present paper aimed to evaluate the validity of the Persian version of the hyperacusis questionnaire. Methods The sample was comprised of 434 students evaluated at the Kashan University of Medical Science, Isfahan, between July 2019 and February 2020. After translation and retranslation of questionnaire, the content validity was assessed by 15 occupational health experts using content validity index (CVI) and ratio (CVR). Validity and reliability of the scale were examined by using confirmatory factor analysis, the Cronbach alpha, composite reliability (CR), and the average variance extracted (AVE) tests. Results : In the exploratory analysis of the Persian version of Khalfa hyperacusis questionnaire, 14 items were created based on three subscales) attentional, social, and emotional dimensions) which explained 46.5% of the total variances. Content validity of 14 questions was approved with CVR > 0.49 and CVI > 0.7. The Cronbach alpha, AVE, and CR indexes were calculated 0.811, 0.761, and 0.901, respectively, which showed that reliability of the scale was adequate. Conclusions : It was concluded that this Persian version of the hyperacusis questionnaire has relatively acceptable validity and reliability in Iran. Given that the tool has a small number of questions, it is easily used in different studies.
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Affiliation(s)
- Masoud Motalebi Kashani
- Social Determinants of Health Research Center, Kashan University of Medical Sciences, Kasham, Iran
| | - Peyman Khaleghi Dehabadi
- Department of Health, Safety and Environmental Management, School of Health, Kashan University of Medical Sciences, Kashan, Iran
| | - Fahimeh Karamali
- Department of Health, Safety and Environmental Management, School of Health, Kashan University of Medical Sciences, Kashan, Iran
| | - Hossein Akbari
- Trauma Research Center, Kashan University of Medical Sciences, Kashan, Iran,Address for correspondence: Hossein Akbari Associate Professor of Biostatistics, Trauma Research Center, Kashan University of Medical Sciences, Kashan, Iran.
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Pan DW, Choi JS, Hokan A, Doherty JK. Trends in Hearing Protection Use With Occupational Noise Exposure in the United States 1999 to 2016. Otol Neurotol 2022; 43:e14-e22. [PMID: 34510117 DOI: 10.1097/mao.0000000000003343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Determine hearing protection use in relation to occupational noise exposure, tinnitus, and audiometry-measured hearing loss in the United States from 1999 to 2016. STUDY DESIGN Cross-sectional study utilizing US National Health and Nutritional Examination Survey (NHANES) 1999 to 2016 with occupation, reported occupational noise exposure, hearing protection use, tinnitus, and audiometry-measured hearing loss data. Subgroup analysis divided data into two cohorts early 2000s and 2010s. SETTING Population-based study using NHANES database capturing representative sample of US population. PARTICIPANTS Individuals with complete data 1999 to 2004 (n = 10,347) and 2011 to 2012 with 2015 to 2016 (n = 9,383). INTERVENTIONS Participants self-reported occupational noise exposure lasting more than 4 h/d for more than 3 months. Self-reported hearing protective device uses and tinnitus frequency. Audiometric hearing loss objectively measured. MAIN OUTCOME MEASURES Hearing protection use. Secondary measures included self-reported bothersome tinnitus and audiometrically measured hearing loss. RESULTS Across occupations, reported occupational noise exposure was higher in 2010s [32%, 95% CI: 29.6-34.6%] than 2000s [12.5%, 95% CI: 11.2-13.9%], while hearing protection use remained low in 2000s [41.3%, 95% CI: 37.8-44.8%] and 2010s [32.8%, 95% CI: 29.8-35.8%]. Less hearing protection use was associated with absence of bothersome tinnitus. Factors associated with increased hearing protection use were younger age, male sex, college education or higher, and white race in a multivariate model. CONCLUSIONS Reported occupational noise exposure appeared to increase from 2000s to 2010s yet hearing protection use remained stable at low use rate. As noise exposure is a major risk factor for hearing loss, significant education and reinforcement of appropriate hearing protection use for workplace noise exposures is necessary to preserve workers' hearing.
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Affiliation(s)
- Dorothy W Pan
- Caruso Department of Otolaryngology-Head and Neck Surgery, Keck School of Medicine of the University of Southern California, Los Angeles, California
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Riley JR, Borland MS, Tamaoki Y, Skipton SK, Engineer CT. Auditory Brainstem Responses Predict Behavioral Deficits in Rats with Varying Levels of Noise-Induced Hearing Loss. Neuroscience 2021; 477:63-75. [PMID: 34634426 DOI: 10.1016/j.neuroscience.2021.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 09/30/2021] [Accepted: 10/04/2021] [Indexed: 11/30/2022]
Abstract
Intense noise exposure is a leading cause of hearing loss, which results in degraded speech sound discrimination ability, particularly in noisy environments. The development of an animal model of speech discrimination deficits due to noise induced hearing loss (NIHL) would enable testing of potential therapies to improve speech sound processing. Rats can accurately detect and discriminate human speech sounds in the presence of quiet and background noise. Further, it is known that profound hearing loss results in functional deafness in rats. In this study, we generated rats with a range of impairments which model the large range of hearing impairments observed in patients with NIHL. One month after noise exposure, we stratified rats into three distinct deficit groups based on their auditory brainstem response (ABR) thresholds. These groups exhibited markedly different behavioral outcomes across a range of tasks. Rats with moderate hearing loss (30 dB shifts in ABR threshold) were not impaired in speech sound detection or discrimination. Rats with severe hearing loss (55 dB shifts) were impaired at discriminating speech sounds in the presence of background noise. Rats with profound hearing loss (70 dB shifts) were unable to detect and discriminate speech sounds above chance level performance. Across groups, ABR threshold accurately predicted behavioral performance on all tasks. This model of long-term impaired speech discrimination in noise, demonstrated by the severe group, mimics the most common clinical presentation of NIHL and represents a useful tool for developing and improving interventions to target restoration of hearing.
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Affiliation(s)
- Jonathan R Riley
- The University of Texas at Dallas, Texas Biomedical Device Center, 800 West Campbell Road BSB11, Richardson, TX 75080, USA; The University of Texas at Dallas, School of Behavioral and Brain Sciences, 800 West Campbell Road BSB11, Richardson, TX 75080, USA.
| | - Michael S Borland
- The University of Texas at Dallas, Texas Biomedical Device Center, 800 West Campbell Road BSB11, Richardson, TX 75080, USA; The University of Texas at Dallas, School of Behavioral and Brain Sciences, 800 West Campbell Road BSB11, Richardson, TX 75080, USA
| | - Yuko Tamaoki
- The University of Texas at Dallas, Texas Biomedical Device Center, 800 West Campbell Road BSB11, Richardson, TX 75080, USA; The University of Texas at Dallas, School of Behavioral and Brain Sciences, 800 West Campbell Road BSB11, Richardson, TX 75080, USA
| | - Samantha K Skipton
- The University of Texas at Dallas, Texas Biomedical Device Center, 800 West Campbell Road BSB11, Richardson, TX 75080, USA; The University of Texas at Dallas, School of Behavioral and Brain Sciences, 800 West Campbell Road BSB11, Richardson, TX 75080, USA
| | - Crystal T Engineer
- The University of Texas at Dallas, Texas Biomedical Device Center, 800 West Campbell Road BSB11, Richardson, TX 75080, USA; The University of Texas at Dallas, School of Behavioral and Brain Sciences, 800 West Campbell Road BSB11, Richardson, TX 75080, USA
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Guthrie OW, Bhatt IS. Nondeterministic nature of sensorineural outcomes following noise trauma. Biol Open 2021; 10:272549. [PMID: 34668520 PMCID: PMC8543023 DOI: 10.1242/bio.058696] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 09/08/2021] [Indexed: 11/20/2022] Open
Abstract
Over 1.1 billion individuals are at risk for noise induced hearing loss yet there is no accepted therapy. A long history of research has demonstrated that excessive noise exposure will kill outer hair cells (OHCs). Such observations have fueled the notion that dead OHCs underlie hearing loss. Therefore, previous and current therapeutic approaches are based on preventing the loss of OHCs. However, the relationship between OHC loss and hearing loss is at best a modest correlation. This suggests that in addition to the death of OHCs, other mechanisms may regulate the type and degree of hearing loss. In the current study, we tested the hypothesis that permanent noise-induced-hearing loss is consequent to additional mechanisms beyond the noise dose and the death of OHCs. Hooded male rats were randomly divided into noise and control groups. Morphological and physiological assessments were conducted on both groups. The combined results suggest that beyond OHC loss, the surviving cochlear elements shape sensorineural outcomes, which can be nondeterministic. These findings provide the basis for individualized ototherapeutics that manipulate surviving cellular elements in order to bias cochlear function towards normal hearing even in the presence of dead OHCs. Summary: The current findings provide the basis for individualized ototherapeutics that manipulate surviving cellular elements in order to bias cochlear function towards normal hearing even in the presence of dead cells.
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Affiliation(s)
- O'neil W Guthrie
- Department of Communication Sciences & Disorders, Northern Arizona University, Flagstaff, AZ 86011, USA.,Cell & Molecular Pathology Laboratory, Northern Arizona University, Flagstaff, AZ 86011, USA
| | - Ishan S Bhatt
- Audiogenomics Research Laboratory, Department of Communication Sciences and Disorders, The University of Iowa, Iowa City, IA 52242, USA
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Griest-Hines SE, Bramhall NF, Reavis KM, Theodoroff SM, Henry JA. Development and Initial Validation of the Lifetime Exposure to Noise and Solvents Questionnaire in U.S. Service Members and Veterans. Am J Audiol 2021; 30:810-824. [PMID: 34000200 DOI: 10.1044/2021_aja-20-00145] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Purpose A need exists to investigate the short- and long-term impact of noise exposures during and following military service on auditory health. Currently available questionnaires are limited in their ability to meet this need because of (a) inability to evaluate noise exposures beyond a limited time frame, (b) lack of consensus on scoring, (c) inability to assess impulse exposures (e.g., firearm use), (d) lack of a single questionnaire that assesses both military and nonmilitary exposures, and (e) lack of validity and reliability data. To address these limitations, the Lifetime Exposure to Noise and Solvents Questionnaire (LENS-Q) was developed. The purpose of this report is to describe the development and initial validation of the LENS-Q as a measure of self-reported noise exposure. Method Six hundred ninety participants, consisting of current Service members and recently military-separated (within about 2.5 years) Veterans, completed the LENS-Q, additional study questionnaires, and comprehensive audiometric testing. Noise exposure scores were computed from LENS-Q responses using a simple scoring algorithm that distinguishes between different cumulative levels of exposure and allows for the inclusion of both continuous and impulse noise exposures. Results The LENS-Q demonstrates good construct validity as evidenced by measures of hearing loss, tinnitus, and subjective hearing difficulties all increasing with an increase in noise exposure scores. A logistic regression, adjusting for age and sex, revealed that participants in the highest exposure group were 2.4-3.9 times more likely to experience hearing loss, 2.7-2.8 times more likely to experience tinnitus, and 3.0-3.7 times more likely to report hearing difficulties compared with individuals in the lowest exposure group. Conclusions The LENS-Q captures noise exposure over an individual's lifetime and provides an alternative scoring metric capable of representing exposure to both continuous and impulse noise. Findings suggest that the LENS-Q is a valuable tool for capturing and measuring both military and nonmilitary noise exposure. Supplemental Material https://doi.org/10.23641/asha.14582937.
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Affiliation(s)
- Susan E. Griest-Hines
- VA Portland Health Care System, National Center for Rehabilitative Auditory Research, Rehabilitation Research and Development Service, Department of Veterans Affairs, OR
- Department of Otolaryngology/Head & Neck Surgery, Oregon Health & Science University, Portland
| | - Naomi F. Bramhall
- VA Portland Health Care System, National Center for Rehabilitative Auditory Research, Rehabilitation Research and Development Service, Department of Veterans Affairs, OR
- Department of Otolaryngology/Head & Neck Surgery, Oregon Health & Science University, Portland
| | - Kelly M. Reavis
- VA Portland Health Care System, National Center for Rehabilitative Auditory Research, Rehabilitation Research and Development Service, Department of Veterans Affairs, OR
- School of Public Health, Oregon Health & Science University, Portland
| | - Sarah M. Theodoroff
- VA Portland Health Care System, National Center for Rehabilitative Auditory Research, Rehabilitation Research and Development Service, Department of Veterans Affairs, OR
- Department of Otolaryngology/Head & Neck Surgery, Oregon Health & Science University, Portland
| | - James A. Henry
- VA Portland Health Care System, National Center for Rehabilitative Auditory Research, Rehabilitation Research and Development Service, Department of Veterans Affairs, OR
- Department of Otolaryngology/Head & Neck Surgery, Oregon Health & Science University, Portland
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Carlson K, Basu N, Fobil JN, Neitzel RL. Metal Exposures, Noise Exposures, and Audiometry from E-Waste Workers in Agbogbloshie, Ghana. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:9639. [PMID: 34574563 PMCID: PMC8470926 DOI: 10.3390/ijerph18189639] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/31/2021] [Accepted: 09/08/2021] [Indexed: 01/18/2023]
Abstract
Metals, such as lead, may be ototoxic, but this property is not well understood, especially in conjunction with noise. This cross-sectional study investigated hearing, noise, and metal biomarkers in informal electronic waste (e-waste) recycling workers in Accra, Ghana. Workers (N = 58) participated in audiometric testing, a survey, blood collection, and personal noise dosimetry. Sixty percent of participants displayed audiometric notches indicative of noise-induced hearing loss (NIHL). Most workers (86%) reported high noise while working. Daily average noise levels were in the range 74.4-90.0 dBA. Linear regression models indicated participants who lived at Agbogbloshie Market for longer periods were significantly associated with worse hearing thresholds at 4 and 6 kHz. The models did not identify blood levels of lead, mercury, or cadmium as significant predictors of worse hearing thresholds or larger noise notches, but increased levels of selenium were significantly associated with better hearing at 6 kHz. Models of thresholds at 4 and 6 kHz were improved by including an interaction term between the maximum noise exposure and the level of zinc in whole blood, suggesting that zinc may protect hearing at lower noise levels, but not at higher levels. Further study of the relationships between elements, noise, and NIHL is needed.
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Affiliation(s)
- Krystin Carlson
- Department of Environmental Health Sciences, University of Michigan, Ann Arbor, MI 48109-2029, USA;
| | - Niladri Basu
- Faculty of Agricultural and Environmental Sciences, McGill University, Montréal, QC H9X 3V9, Canada;
| | - Julius N. Fobil
- Department of Biological, Environmental & Occupational Health Sciences, School of Public Health, University of Ghana, Accra P.O. Box LG13, Ghana;
| | - Richard L. Neitzel
- Department of Environmental Health Sciences, University of Michigan, Ann Arbor, MI 48109-2029, USA;
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Beaulac HJ, Gilels F, Zhang J, Jeoung S, White PM. Primed to die: an investigation of the genetic mechanisms underlying noise-induced hearing loss and cochlear damage in homozygous Foxo3-knockout mice. Cell Death Dis 2021; 12:682. [PMID: 34234110 PMCID: PMC8263610 DOI: 10.1038/s41419-021-03972-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 06/17/2021] [Accepted: 06/18/2021] [Indexed: 02/06/2023]
Abstract
The prevalence of noise-induced hearing loss (NIHL) continues to increase, with limited therapies available for individuals with cochlear damage. We have previously established that the transcription factor FOXO3 is necessary to preserve outer hair cells (OHCs) and hearing thresholds up to two weeks following mild noise exposure in mice. The mechanisms by which FOXO3 preserves cochlear cells and function are unknown. In this study, we analyzed the immediate effects of mild noise exposure on wild-type, Foxo3 heterozygous (Foxo3+/-), and Foxo3 knock-out (Foxo3-/-) mice to better understand FOXO3's role(s) in the mammalian cochlea. We used confocal and multiphoton microscopy to examine well-characterized components of noise-induced damage including calcium regulators, oxidative stress, necrosis, and caspase-dependent and caspase-independent apoptosis. Lower immunoreactivity of the calcium buffer Oncomodulin in Foxo3-/- OHCs correlated with cell loss beginning 4 h post-noise exposure. Using immunohistochemistry, we identified parthanatos as the cell death pathway for OHCs. Oxidative stress response pathways were not significantly altered in FOXO3's absence. We used RNA sequencing to identify and RT-qPCR to confirm differentially expressed genes. We further investigated a gene downregulated in the unexposed Foxo3-/- mice that may contribute to OHC noise susceptibility. Glycerophosphodiester phosphodiesterase domain containing 3 (GDPD3), a possible endogenous source of lysophosphatidic acid (LPA), has not previously been described in the cochlea. As LPA reduces OHC loss after severe noise exposure, we treated noise-exposed Foxo3-/- mice with exogenous LPA. LPA treatment delayed immediate damage to OHCs but was insufficient to ultimately prevent their death or prevent hearing loss. These results suggest that FOXO3 acts prior to acoustic insult to maintain cochlear resilience, possibly through sustaining endogenous LPA levels.
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MESH Headings
- Animals
- Cell Death
- Disease Models, Animal
- Female
- Forkhead Box Protein O3/deficiency
- Forkhead Box Protein O3/genetics
- Gene Expression Regulation
- Hair Cells, Auditory, Outer/drug effects
- Hair Cells, Auditory, Outer/metabolism
- Hair Cells, Auditory, Outer/pathology
- Hearing
- Hearing Loss, Noise-Induced/drug therapy
- Hearing Loss, Noise-Induced/genetics
- Hearing Loss, Noise-Induced/metabolism
- Hearing Loss, Noise-Induced/pathology
- Homozygote
- Lysophospholipids/metabolism
- Lysophospholipids/pharmacology
- Male
- Mice, Knockout
- Noise
- Phosphoric Diester Hydrolases/genetics
- Phosphoric Diester Hydrolases/metabolism
- Time Factors
- Mice
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Affiliation(s)
- Holly J Beaulac
- Department of Neuroscience, Ernest J. Del Monte Institute for Neuroscience, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
- The Jackson Laboratory, Bar Harbor, ME, USA
| | - Felicia Gilels
- Department of Neuroscience, Ernest J. Del Monte Institute for Neuroscience, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
- Department of Pathology, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
| | - Jingyuan Zhang
- Department of Neuroscience, Ernest J. Del Monte Institute for Neuroscience, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
- Department of Otolaryngology, Otolaryngology-Head and Neck Surgery, Harvard Medical School, Boston Children's Hospital Center for Life Science, Boston, MA, USA
| | - Sarah Jeoung
- University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
| | - Patricia M White
- Department of Neuroscience, Ernest J. Del Monte Institute for Neuroscience, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA.
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Wang Q, Qian M, Yang L, Shi J, Hong Y, Han K, Li C, Lin J, Huang Z, Wu H. Audiometric Phenotypes of Noise-Induced Hearing Loss by Data-Driven Cluster Analysis and Their Relevant Characteristics. Front Med (Lausanne) 2021; 8:662045. [PMID: 33842516 PMCID: PMC8027076 DOI: 10.3389/fmed.2021.662045] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 03/02/2021] [Indexed: 12/17/2022] Open
Abstract
Background: The definition of notched audiogram for noise-induced hearing loss (NIHL) is presently based on clinical experience, but audiometric phenotypes of NIHL are highly heterogeneous. The data-driven clustering of subtypes could provide refined characteristics of NIHL, and help identify individuals with typical NIHL at diagnosis. Methods: This cross-sectional study initially recruited 12,218 occupational noise-exposed employees aged 18–60 years from two factories of a shipyard in Eastern China. Of these, 10,307 subjects with no history of otological injurie or disease, family history of hearing loss, or history of ototoxic drug use were eventually enrolled. All these subjects completed health behavior questionnaires, cumulative noise exposure (CNE) measurement, and pure-tone audiometry. We did data-driven cluster analysis (k-means clustering) in subjects with hearing loss audiograms (n = 6,599) consist of two independent datasets (n = 4,461 and n = 2,138). Multinomial logistic regression was performed to analyze the relevant characteristics of subjects with different audiometric phenotypes compared to those subjects with normal hearing audiograms (n = 3,708). Results: A total of 10,307 subjects (9,165 males [88.9%], mean age 34.5 [8.8] years, mean CNE 91.2 [22.7] dB[A]) were included, 3,708 (36.0%) of them had completely normal hearing, the other 6,599 (64.0%) with hearing loss audiograms were clustered into four audiometric phenotypes, which were replicable in two distinct datasets. We named the four clusters as the 4–6 kHz sharp-notched, 4–6 kHz flat-notched, 3–8 kHz notched, and 1–8 kHz notched audiogram. Among them, except for the 4–6 kHz flat-notched audiogram which was not significantly related to NIHL, the other three phenotypes with different relevant characteristics were strongly associated with noise exposure. In particular, the 4–6 kHz sharp-notched audiogram might be a typical subtype of NIHL. Conclusions: By data-driven cluster analysis of the large-scale noise-exposed population, we identified three audiometric phenotypes associated with distinct NIHL subtypes. Data-driven sub-stratification of audiograms might eventually contribute to the precise diagnosis and treatment of NIHL.
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Affiliation(s)
- Qixuan Wang
- Department of Otolaryngology-Head and Neck Surgery, 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
| | - Minfei Qian
- Department of Otolaryngology-Head and Neck Surgery, 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
| | - Lu Yang
- Department of Otolaryngology-Head and Neck Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Hearing and Speech Center, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Junbo Shi
- Department of Otolaryngology-Head and Neck Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Hearing and Speech Center, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yingying Hong
- Department of Otolaryngology-Head and Neck Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Hearing and Speech Center, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Kun Han
- Department of Otolaryngology-Head and Neck Surgery, 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
| | - Chen Li
- Network and Information Center, Shanghai Jiao Tong University, Shanghai, China
| | - James Lin
- Network and Information Center, Shanghai Jiao Tong University, Shanghai, China
| | - Zhiwu Huang
- Department of Otolaryngology-Head and Neck Surgery, 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.,Hearing and Speech Center, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hao Wu
- Department of Otolaryngology-Head and Neck Surgery, 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
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Xiao L, Sun Y, Liu C, Zheng Z, Shen Y, Xia L, Yang G, Feng Y. Molecular Behavior of HMGB1 in the Cochlea Following Noise Exposure and in vitro. Front Cell Dev Biol 2021; 9:642946. [PMID: 33732708 PMCID: PMC7959764 DOI: 10.3389/fcell.2021.642946] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 02/05/2021] [Indexed: 12/13/2022] Open
Abstract
Noise-induced hearing loss (NIHL) is characterized by cellular damage to the inner ear, which is exacerbated by inflammation. High-mobility group box 1 (HMGB1), a representative damage-associated molecular pattern (DAMP), acts as a mediator of inflammation or an intercellular messenger according to its cellular localization. Blocking or regulating HMGB1 offers an attractive approach in ameliorating NIHL. However, the precise therapeutic intervention must be based on a deeper understanding of its dynamic molecular distribution and function in cochlear pathogenesis after acoustic trauma. Here, we have presented the spatiotemporal dynamics of the expression of HMGB1, exhibiting distribution variability in specific cochlear regions and cells following noise exposure. After gene manipulation, we further investigated the characteristics of cellular HMGB1 in HEI-OC1 cells. The higher cell viability observed in the HMGB1 knocked-down group after stimulation with H2O2 indicated the possible negative effect of HMGB1 on cellular lifespan. In conclusion, this study demonstrated that HMGB1 is involved in NIHL pathogenesis and its molecular biology has essential and subtle influences, preserving a translational potential for pharmacological intervention.
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Affiliation(s)
- Lili Xiao
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai, China
| | - Yan Sun
- Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, China
| | - Chengqi Liu
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai, China
| | - Zhong Zheng
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai, China
| | - Ying Shen
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai, China
| | - Liang Xia
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai, China
| | - Guang Yang
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai, China
| | - Yanmei Feng
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai, China
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40
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Liebenberg A, Brichta AM, Nie VM, Ahmadi S, James CL. Hearing threshold levels of Australian coal mine workers: a retrospective cross-sectional study of 64196 audiograms. Int J Audiol 2021; 60:808-819. [PMID: 33612050 DOI: 10.1080/14992027.2021.1884908] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
OBJECTIVE This study examined the hearing threshold levels (HTL) of workers commencing employment in Australian coal mines in the State of New South Wales (NSW). The aim was to establish if some degree of hearing loss was identifiable in the mandatory pre-employment audiograms of workers. DESIGN This was an observational, retrospective, repeated cross-sectional study. STUDY SAMPLE De-identified audiometric records of 64196 employees entering NSW coal mining in three representative five-year periods between 1991-2015 were utilised. RESULTS Although HTLs were lower (better) in more recent years, the results showed clinically significant hearing loss (≥25dBHL) for older workers, 45-60 years. Pure tone average (PTA) hearing losses were greater at the higher frequencies associated with excessive noise exposure (3-6 kHz), than at the speech frequencies (0.5-4 kHz). Hearing loss in the left ears were higher compared to the right ears, with higher prevalence of audiometric notches in males. CONCLUSION Almost a fifth (14.8-20.1%) of male workers commencing work in NSW coal mines presented with an audiometric notch at 4 kHz. Further research is required to determine if these notches represent true NIHL, and how the residual hearing of workers may be conserved.
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Affiliation(s)
- Adelle Liebenberg
- School of Health Sciences, Faculty of Health and Medicine, University of Newcastle, Callaghan, Australia
| | - Alan M Brichta
- School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle, Callaghan, Australia
| | - Valerie M Nie
- School of Health Sciences, Faculty of Health and Medicine, University of Newcastle, Callaghan, Australia
| | - Sima Ahmadi
- Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Carole L James
- School of Health Sciences, Faculty of Health and Medicine, University of Newcastle, Callaghan, Australia
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41
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Adekanye A, Nja GE, Mgbe R, Umana AU. Awareness of ear health care among urban city residents, in south-south, Nigeria. NIGERIAN JOURNAL OF MEDICINE 2021. [DOI: 10.4103/njm.njm_203_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Abstract
Hearing loss is highly prevalent and may significantly affect how we age. Although the population is aging, relatively few adults receive treatment for hearing loss. Internists are a critical partner to audiologists and otolaryngologists in caring for the adult population with hearing loss. This review provides a primer on diagnosing and managing hearing loss.
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Affiliation(s)
- Carrie L Nieman
- Johns Hopkins University School of Medicine, Baltimore, Maryland (C.L.N., E.S.O.)
| | - Esther S Oh
- Johns Hopkins University School of Medicine, Baltimore, Maryland (C.L.N., E.S.O.)
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Alvarado JC, Fuentes-Santamaría V, Melgar-Rojas P, Gabaldón-Ull MC, Cabanes-Sanchis JJ, Juiz JM. Oral Antioxidant Vitamins and Magnesium Limit Noise-Induced Hearing Loss by Promoting Sensory Hair Cell Survival: Role of Antioxidant Enzymes and Apoptosis Genes. Antioxidants (Basel) 2020; 9:E1177. [PMID: 33255728 PMCID: PMC7761130 DOI: 10.3390/antiox9121177] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 11/16/2020] [Accepted: 11/19/2020] [Indexed: 01/01/2023] Open
Abstract
Noise induces oxidative stress in the cochlea followed by sensory cell death and hearing loss. The proof of principle that injections of antioxidant vitamins and Mg2+ prevent noise-induced hearing loss (NIHL) has been established. However, effectiveness of oral administration remains controversial and otoprotection mechanisms are unclear. Using auditory evoked potentials, quantitative PCR, and immunocytochemistry, we explored effects of oral administration of vitamins A, C, E, and Mg2+ (ACEMg) on auditory function and sensory cell survival following NIHL in rats. Oral ACEMg reduced auditory thresholds shifts after NIHL. Improved auditory function correlated with increased survival of sensory outer hair cells. In parallel, oral ACEMg modulated the expression timeline of antioxidant enzymes in the cochlea after NIHL. There was increased expression of glutathione peroxidase-1 and catalase at 1 and 10 days, respectively. Also, pro-apoptotic caspase-3 and Bax levels were diminished in ACEMg-treated rats, at 10 and 30 days, respectively, following noise overstimulation, whereas, at day 10 after noise exposure, the levels of anti-apoptotic Bcl-2, were significantly increased. Therefore, oral ACEMg improves auditory function by limiting sensory hair cell death in the auditory receptor following NIHL. Regulation of the expression of antioxidant enzymes and apoptosis-related proteins in cochlear structures is involved in such an otoprotective mechanism.
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Affiliation(s)
- Juan C. Alvarado
- Instituto de Investigación en Discapacidades Neurológicas (IDINE), School of Medicine, Universidad de Castilla-La Mancha, 02008 Albacete, Spain; (V.F.-S.); (P.M.-R.); (M.C.G.-U.); (J.J.C.-S.)
| | - Verónica Fuentes-Santamaría
- Instituto de Investigación en Discapacidades Neurológicas (IDINE), School of Medicine, Universidad de Castilla-La Mancha, 02008 Albacete, Spain; (V.F.-S.); (P.M.-R.); (M.C.G.-U.); (J.J.C.-S.)
| | - Pedro Melgar-Rojas
- Instituto de Investigación en Discapacidades Neurológicas (IDINE), School of Medicine, Universidad de Castilla-La Mancha, 02008 Albacete, Spain; (V.F.-S.); (P.M.-R.); (M.C.G.-U.); (J.J.C.-S.)
| | - María C. Gabaldón-Ull
- Instituto de Investigación en Discapacidades Neurológicas (IDINE), School of Medicine, Universidad de Castilla-La Mancha, 02008 Albacete, Spain; (V.F.-S.); (P.M.-R.); (M.C.G.-U.); (J.J.C.-S.)
| | - José J. Cabanes-Sanchis
- Instituto de Investigación en Discapacidades Neurológicas (IDINE), School of Medicine, Universidad de Castilla-La Mancha, 02008 Albacete, Spain; (V.F.-S.); (P.M.-R.); (M.C.G.-U.); (J.J.C.-S.)
| | - José M. Juiz
- Instituto de Investigación en Discapacidades Neurológicas (IDINE), School of Medicine, Universidad de Castilla-La Mancha, 02008 Albacete, Spain; (V.F.-S.); (P.M.-R.); (M.C.G.-U.); (J.J.C.-S.)
- Department of Otolaryngology, Hannover Medical School, NIFE-VIANNA, Cluster of Excellence Hearing4all-German Research Foundation, 30625 Hannover, Germany
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Wieczerzak KB, Patel SV, MacNeil H, Scott KE, Schormans AL, Hayes SH, Herrmann B, Allman BL. Differential Plasticity in Auditory and Prefrontal Cortices, and Cognitive-Behavioral Deficits Following Noise-Induced Hearing Loss. Neuroscience 2020; 455:1-18. [PMID: 33246065 DOI: 10.1016/j.neuroscience.2020.11.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 10/30/2020] [Accepted: 11/11/2020] [Indexed: 10/22/2022]
Abstract
Excessive exposure to loud noise causes hearing loss and neural plasticity throughout the auditory pathway. Recent studies have identified that non-auditory regions, such as the hippocampus, are also susceptible to noise exposure; however, the electrophysiological and behavioral consequences of noise-induced hearing loss on the prefrontal cortex (PFC) are unclear. Using chronically-implanted electrodes in awake rats, we investigated neural plasticity in the auditory and prefrontal cortices in the days following noise exposure via metrics associated with spontaneous neural oscillations and the 40-Hz auditory steady-state response (ASSR). Noise exposure did not alter the profile of spontaneous oscillations in either of the cortices, yet it caused a differential plasticity in the sound-evoked activity, which was characterized by enhanced event-related potentials (ERPs) in the auditory cortex (i.e., central gain), and decreased inter-trial coherence (ITC) of the 40-Hz ASSR within the PFC. Moreover, phase synchrony between auditory and prefrontal cortices was decreased post-exposure, suggesting a reduction in functional connectivity. Cognitive-behavioral testing using the Morris water maze and a series of lever-pressing tasks revealed that noise exposure impaired spatial learning and reference memory, as well as stimulus-response habit learning, whereas cognitive flexibility tasks requiring set-shifting and reversal learning appeared unaffected. Collectively, our findings identify the complex and region-specific cortical plasticity associated with noise-induced hearing loss, and highlight the varying degrees of susceptibility of non-auditory, cognitive tasks of learning, memory and executive function to noise exposure.
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Affiliation(s)
- Krystyna B Wieczerzak
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, ON N6A 3K7, Canada
| | - Salonee V Patel
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, ON N6A 3K7, Canada
| | - Hannah MacNeil
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, ON N6A 3K7, Canada
| | - Kaela E Scott
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, ON N6A 3K7, Canada
| | - Ashley L Schormans
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, ON N6A 3K7, Canada
| | - Sarah H Hayes
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, ON N6A 3K7, Canada
| | - Björn Herrmann
- Department of Psychology, Brain and Mind Institute, The University of Western Ontario, London ON N6A 3K7, Canada
| | - Brian L Allman
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, ON N6A 3K7, Canada.
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Abstract
: Noise-induced hearing loss (NIHL) represents the second most common occupational disease in the United States. Although the Occupational Safety and Health Administration (OSHA) has promulgated an occupational noise exposure standard and associated recordkeeping requirements, OSHA inspections increasingly document practices that violate both the noise standard and recordkeeping regulation. This article describes five deviations from good clinical practices masking the true societal costs of NIHL, leading to missed prevention opportunities, and creating burdens for individuals and society. These include attributing NIHL to nonoccupational sources, exculpating the workplace because of audiogram patterns without careful documentation, ignoring symptoms or physical examination findings, and simply denying work-relatedness, leading to employers inappropriately lining out cases from the OSHA 300 log. The practices identified by OSHA suggest that many individuals are not following widely recognized and accepted practices when administering hearing conservation programs.
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Cantuaria ML, Pedersen ER, Waldorff FB, Sørensen M, Schmidt JH. Hearing examinations in Southern Denmark (HESD) database: a valuable tool for hearing-related epidemiological research. Int J Audiol 2020; 60:300-311. [PMID: 33074773 DOI: 10.1080/14992027.2020.1831702] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
OBJECTIVE To introduce and document the recently established HESD (Hearing Examinations in Southern Denmark) database, including the necessary data preprocessing steps, and to describe the hearing loss (HL) characteristics of the study sample. DESIGN Clinical auditory information has been collected for approximately 20 years in the state-funded clinics of the Region of Southern Denmark. We reviewed these data and conducted extensive preprocessing through data selection, integration, cleaning, transformation, and classification. HL profiling was then assessed in terms of severity, asymmetry, configuration, site of lesion, and audiogram shape. STUDY SAMPLE The final number of complete audiograms available in the HESD database was 271,556, corresponding to detailed hearing information for 143,793 adults. RESULTS The distribution of HL characteristics differed significantly (p < 0.001) between men and women for all categories analysed. Clear differences were observed for asymmetry and audiogram configuration. However, both men and women had higher prevalence of unilateral, moderate, and sensorineural HL. CONCLUSIONS This work highlights the potential of the HESD database as a source of audiology-related epidemiological data. It can be used to evaluate the distribution of HL characteristics and also to investigate risk factors for HL and the associations between HL and other health outcomes.
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Affiliation(s)
- Manuella Lech Cantuaria
- Department of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark.,Diet, Genes and Environment, Danish Cancer Society Research Center, Copenhagen, Denmark.,The Maersk Mc-Kinney Møller Institute, Faculty of Engineering, University of Southern Denmark, Odense, Denmark
| | - Ellen Raben Pedersen
- The Maersk Mc-Kinney Møller Institute, Faculty of Engineering, University of Southern Denmark, Odense, Denmark
| | - Frans Boch Waldorff
- The Research Unit for General Practice and Section of General Practice, Department of Public Health, University of Copenhagen, Copenhagen, Denmark.,Research Unit of General Practice, Department of Public Health, University of Southern Denmark, Odense, Denmark
| | - Mette Sørensen
- Diet, Genes and Environment, Danish Cancer Society Research Center, Copenhagen, Denmark.,Department of Natural Science and Environment, Roskilde University, Roskilde, Denmark
| | - Jesper Hvass Schmidt
- Department of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark.,Department of Oto-Rhino-Laryngology Head & Neck Surgery and Audiology, Odense University Hospital, Odense, Denmark.,Brain Research - Inter-Disciplinary Guided Excellence, Department of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark.,Odense Patient data Explorative Network, Odense University Hospital, Odense, Denmark
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Yaakobi E, Putter-Katz H. What Best Predicts the Use of Hearing Protection Devices? AMERICAN JOURNAL OF PSYCHOLOGY 2020. [DOI: 10.5406/amerjpsyc.133.3.0313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Abstract
The use of protective devices to safeguard health in noisy environments is crucial. Intensive exposure to pop, rock, and jazz (PRJ) music leads to irreversible damage to the auditory system. This study analyzed the psychological variables that best predict the use of personal hearing protection devices (PHPD) in professional PRJ musicians and the relative importance of PHPD in general as well as in four different occupational contexts, after controlling for auditory measures and condition. Professional musicians’ attitudes toward PHPD and behavior were assessed. Analyses showed that the best predictor of current usage was the duration of previous use, followed by additional psychological factors that predict usage in the four occupational settings. Researchers can draw on the current findings to explore other psychological factors and mechanisms that may facilitate the use of PHPD. For example, the finding that custom-made PHPD predicts the use of PHPD could be explored further by identifying the underlying psychological mechanisms, such as perception of ownership or identification processes. Studies should examine the other barriers/inducements to the use of PHPD in addition to those examined here, including the social factors connected to particular musical ensembles. Overall, psychological approaches encouraging behavioral change should be implemented, such as reminding individuals about previous use of PHPD, drawing their attention to these devices and the occupational environment, and enforcing PHPD norms to augment occupational health and safety.
The questionnaire used in the experiment is available online at https://www.press.uillinois.edu/journals/ajp/media/redicts_the_use_of_hearing_protection/index.html
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Eichwald J, Benet L. CDC Addresses Non-Occupational Noise-Induced Hearing Loss. THE HEARING JOURNAL 2020; 73:10.1097/01.hj.0000719788.78887.02. [PMID: 35928763 PMCID: PMC9348587 DOI: 10.1097/01.hj.0000719788.78887.02] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
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Haragopal H, Dorkoski R, Pollard AR, Whaley GA, Wohl TR, Stroud NC, Day ML. Specific loss of neural sensitivity to interaural time difference of unmodulated noise stimuli following noise-induced hearing loss. J Neurophysiol 2020; 124:1165-1182. [PMID: 32845200 DOI: 10.1152/jn.00349.2020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Sensorineural hearing loss (SNHL) causes an overall deficit in binaural hearing, including the abilities to localize sound sources, discriminate interaural time and level differences (ITDs and ILDs, respectively), and utilize binaural cues to aid signal detection and comprehension in noisy environments. Few studies have examined the effect of SNHL on binaural coding in the central auditory system, and those that have focused on age-related hearing loss. We induced hearing loss in male and female Dutch-belted rabbits via noise overexposure and compared unanesthetized single-unit responses of their inferior colliculi [hearing loss (HL) neurons] with those of unexposed rabbits. Sound-level thresholds of HL neurons to diotic noise were elevated by 75 dB, on average. Sensitivity of firing rates of HL neurons to the azimuth of a broadband noise stimulus was reduced, on average, but was confounded by differences in sound level with respect to detection threshold between groups. We independently manipulated ITD and ILD in virtual acoustic space and found directional sensitivity in binaurally sensitive HL neurons was entirely due to ILD sensitivity and no different than that for unexposed rabbits. However, ITD sensitivity was completely absent in binaurally sensitive HL neurons for noise stimuli both in virtual acoustic space and with ITDs extending to ±3 ms. HL neurons also had weaker spike-timing precision and slightly increased spontaneous rates. Overall, ILD sensitivity was uncompromised, whereas ITD sensitivity was completely lost, implying a specific inability to use information in the timing or correlation of acoustic noise waveforms between the two ears following severe SNHL.NEW & NOTEWORTHY Sensorineural hearing loss compromises perceptual abilities that arise from hearing with two ears, yet its effects on binaural aspects of neural responses are largely unknown. We found that, following severe hearing loss because of acoustic trauma, auditory midbrain neurons specifically lost the ability to encode time differences between the arrival of a broadband noise stimulus to the two ears, whereas the encoding of sound level differences between the two ears remained uncompromised.
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Affiliation(s)
| | - Ryan Dorkoski
- Department of Biological Sciences, Ohio University, Athens, Ohio
| | - Austin R Pollard
- Department of Biological Sciences, Ohio University, Athens, Ohio
| | - Gareth A Whaley
- Department of Biological Sciences, Ohio University, Athens, Ohio
| | - Timothy R Wohl
- Department of Biological Sciences, Ohio University, Athens, Ohio
| | - Noelle C Stroud
- Department of Biological Sciences, Ohio University, Athens, Ohio
| | - Mitchell L Day
- Department of Biological Sciences, Ohio University, Athens, Ohio.,Quantitative Biology Institute, Ohio University, Athens, Ohio
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50
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Li MC. Serum Per- and Polyfluoroalkyl Substances Are Associated with Increased Hearing Impairment: A Re-Analysis of the National Health and Nutrition Examination Survey Data. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17165836. [PMID: 32806617 PMCID: PMC7460726 DOI: 10.3390/ijerph17165836] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 07/31/2020] [Accepted: 08/08/2020] [Indexed: 11/16/2022]
Abstract
Although studies have shown that per- and polyfluoroalkyl substances (PFAS) are potential environmental ototoxicants, epidemiologic study has been limited. I conducted a cross-sectional study to re-examine the associations between PFAS and hearing impairment. Data were obtained from the National Health and Nutrition Examination Survey (NHANES) 1999–2000, 2003-06, 2009-12, and 2015-16. Perfluorooctanoic acid (PFOA), perfluorooctane sulfonic acid (PFOS), perfluorohexane sulfonic acid (PFHxS), and perfluorononanoic acid (PFNA) were measured in serum samples. Participants were divided into quartiles for each PFAS. Air conduction pure-tone audiometry was administered. Hearing impairment (1: yes, 0: no) was defined as a hearing threshold of more than 25 dB at 500, 1000, 2000, 4000, and 8000 Hz in the worse ear. I assessed the relation of serum PFAS with hearing impairment by the generalized linear mixed model with a logit link and binary distribution. Tests for linear trend across quartiles of serum PFAS were conducted using the median serum PFAS in each quartile as a continuous variable. After adjusting for age, sex, body mass index, education, ethnicity group, and family income, I found positive correlations between PFOA and hearing impairment at 2000 Hz (p-trend < 0.01) and 3000 Hz (p-trend = 0.02); between PFOS and hearing impairment at 500 Hz (p-trend < 0.01), 2000 Hz (p-trend < 0.0001) and 3000 Hz (p-trend = 0.02); between PFNA and hearing impairment at 2000 Hz (p-trend = 0.05), 3000 Hz (p-trend < 0.01), 4000 Hz (p-trend = 0.02), and 8000 Hz (p-trend < 0.01); between PFHxS and hearing impairment at 500 Hz (p-trend = 0.04), 1000 Hz (p-trend = 0.03), and 2000 Hz (p-trend < 0.01). However, some of the findings were not significant when only comparing the highest with the lowest quartile of PFASs. In conclusion, several background serum PFASs are positively correlated with hearing impairment in the United States adult population.
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Affiliation(s)
- Ming-Chieh Li
- Department of Public Health, China Medical University College of Public Health, Taichung 40402, Taiwan
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