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Han SY, Kim YH. Associations Between Tinnitus and Systemic Disease in Adolescents: Implications of Vitamin D Deficiency and Anaemia. Clin Otolaryngol 2024. [PMID: 39048535 DOI: 10.1111/coa.14203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 06/11/2024] [Accepted: 07/06/2024] [Indexed: 07/27/2024]
Abstract
OBJECTIVES Tinnitus is one of the irritating symptoms that should be addressed in adolescents. Since tinnitus affects mental health, it is important to treat it. However, identifying the cause of tinnitus is very challenging and the treatment strategies of tinnitus are controversial. The objective of this study was to identify the prevalence of tinnitus in adolescents and systemic diseases as risk factors of adolescent tinnitus to find evidence for new treatment strategies. MATERIALS AND METHODS We extracted the subjects and data using the 5th Korea National Health and Nutrition Examination Survey from 2010 to 2012. One thousand five hundred ninety-three adolescents with bilateral normal tympanic membranes and availability of the results of physical, laboratory and audiological examinations, were selected. We evaluated their systemic diseases based on these results and assessed the association of tinnitus with demographic factors, systemic diseases and hearing levels. RESULTS The prevalence of tinnitus in Korean adolescents was 21.7%. The hearing level was not associated with tinnitus. Tinnitus was significantly associated with age (p = 0.005), 25(OH)-D level (p = 0.007) and anaemia (p = 0.003). After controlling the other factors, age (p = 0.045), 25(OH)-D level (p = 0.041) and anaemia (p = 0.019) were independently related to tinnitus. CONCLUSION Tinnitus in adolescents was significantly associated with age, vitamin D and anaemia. Physicians should consider the higher likelihood of these deficiencies or diseases in adolescent tinnitus patients. Additionally, recognizing these associations may be helpful in developing treatment strategies for adolescent tinnitus.
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Affiliation(s)
- Sang-Yoon Han
- Department of Otolaryngology-Head and Neck Surgery, College of Medicine, Hanyang University, Seoul, Republic of Korea
| | - Young Ho Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, South Korea
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2
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Xu T, Zong T, Liu J, Zhang L, Ge H, Yang R, Liu Z. Correlation between hearing loss and mild cognitive impairment in the elderly population: Mendelian randomization and cross-sectional study. Front Aging Neurosci 2024; 16:1380145. [PMID: 38912521 PMCID: PMC11191670 DOI: 10.3389/fnagi.2024.1380145] [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] [Received: 02/01/2024] [Accepted: 05/22/2024] [Indexed: 06/25/2024] Open
Abstract
Background Hearing loss and tinnitus have been linked to mild cognitive impairment (MCI); however, the evidence is constrained by ethical and temporal constraints, and few prospective studies have definitively established causation. This study aims to utilize Mendelian randomization (MR) and cross-sectional studies to validate and analyze this association. Methods This study employs a two-step approach. Initially, the genetic data of the European population from the Genome-wide association studies (GWAS) database is utilized to establish the causal relationship between hearing loss and cognitive impairment through Mendelian randomization using the inverse variance weighted (IVW) method. This is achieved by identifying strongly correlated single nucleotide polymorphisms (SNPs), eliminating linkage disequilibrium, and excluding weak instrumental variables. In the second step, 363 elderly individuals from 10 communities in Qingdao, China are assessed and examined using methods questionnaire survey and pure tone audiology (PTA). Logistic regression and multiple linear regression were used to analyze the risk factors of MCI in the elderly and to calculate the cutoff values. Results Mendelian randomization studies have shown that hearing loss is a risk factor for MCI in European populations, with a risk ratio of hearing loss to MCI loss of 1. 23. The findings of this cross-sectional study indicate that age, tinnitus, and hearing loss emerged as significant risk factors for MCI in univariate logistic regression analysis. Furthermore, multivariate logistic regression analysis identified hearing loss and tinnitus as potential risk factors for MCI. Consistent results were observed in multiple linear regression analysis, revealing that hearing loss and age significantly influenced the development of MCI. Additionally, a notable finding was that the likelihood of MCI occurrence increased by 9% when the hearing threshold exceeded 20 decibels. Conclusion This study provides evidence from genomic and epidemiological investigations indicating that hearing loss may serve as a risk factor for cognitive impairment. While our epidemiological study has found both hearing loss and tinnitus as potential risk factors for cognitive decline, additional research is required to establish a causal relationship, particularly given that tinnitus can manifest as a symptom of various underlying medical conditions.
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Affiliation(s)
- Tong Xu
- Affiliated Qingdao Third People’s Hospital, Qingdao University, Department of Otorhinolaryngology Head and Neck, Qingdao, China
| | - Tao Zong
- Affiliated Qingdao Third People’s Hospital, Qingdao University, Department of Otorhinolaryngology Head and Neck, Qingdao, China
| | - Jing Liu
- Affiliated Qingdao Third People’s Hospital, Qingdao University, Department of Otorhinolaryngology Head and Neck, Qingdao, China
| | - Le Zhang
- Affiliated Qingdao Third People’s Hospital, Qingdao University, Department of Otorhinolaryngology Head and Neck, Qingdao, China
| | - Hai Ge
- Affiliated Qingdao Third People’s Hospital, Qingdao University, Department of Otorhinolaryngology Head and Neck, Qingdao, China
| | - Rong Yang
- Affiliated Qingdao Third People’s Hospital, Qingdao University, Department of Otorhinolaryngology Head and Neck, Qingdao, China
| | - Zongtao Liu
- Affiliated Qingdao Third People’s Hospital, Qingdao University, Department of Clinical Laboratory, Qingdao, China
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3
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Zhang W, Ruan J, Zhang R, Zhang M, Hu X, Han Z, Ruan Q. Association between age-related hearing loss with tinnitus and cognitive performance in older community-dwelling Chinese adults. Psychogeriatrics 2022; 22:822-832. [PMID: 36075585 DOI: 10.1111/psyg.12889] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 07/26/2022] [Accepted: 08/17/2022] [Indexed: 11/30/2022]
Abstract
AIM To examine how the severity of age-related hearing loss (ARHL) and tinnitus or the presentation of ARHL with tinnitus is associated with overall cognition, in terms of specific cognitive domains in older community-dwelling Chinese adults. METHODS The study recruited 429 participants aged ≥58 years (mean age, 72.91 ± 7.014 years; female proportion, 57.30%), excluding those with dementia, disability, and severe mental illness. Patients were classified into normal cognition, pre-mild cognitive impairment (pre-MCI), and MCI according to the normative z-scores of neuropsychological test battery. The severity of ARHL and tinnitus was measured by pure-tone audiometry and the Tinnitus Handicap Inventory. Cognitive impairment and low functions in specific cognitive domains were used as dependent variables in multiple regression analyses adjusted for covariates. RESULTS ARHL severity was positively associated with MCI and low executive function, delayed memory, and language function. Only individuals with mild (odds ratio (OR) 1.791; CI, 0.952-3.373; P = 0.071), and moderate and the disaster tinnitus (OR, 2.493; CI, 0.982-6.328; P = 0.055) were marginally associated with increased odds of MCI in model 1. Individuals with ARHL and tinnitus (OR, 3.888, CI = 1.481-10.205; OR, 4.471, CI = 1.636-12.219) were independently associated with high risk for MCI in models 1 and 2. CONCLUSIONS ARHL severity and the presentation of ARHL or ARHL with tinnitus were associated with overall cognition. ARHL severity was independently associated with executive function, delayed memory, and language function. The association between tinnitus severity and cognition is not clear. But the group with ARHL and tinnitus is a high-risk group with cognitive impairment. CLINICALTRIALS gov identifier: NCT2017K020.
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Affiliation(s)
- Weibin Zhang
- Laboratory of Aging, Anti-aging & Cognitive Performance, Shanghai Institute of Geriatrics and Gerontology, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Clinical Geriatrics, Huadong Hospital, and Research Center of Aging and Medicine, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jian Ruan
- Department of Otolaryngology, Huadong Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Ruxin Zhang
- Department of Otolaryngology, Huadong Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Min Zhang
- Laboratory of Aging, Anti-aging & Cognitive Performance, Shanghai Institute of Geriatrics and Gerontology, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Clinical Geriatrics, Huadong Hospital, and Research Center of Aging and Medicine, Shanghai Medical College, Fudan University, Shanghai, China
| | - Xiuhua Hu
- Laboratory of Aging, Anti-aging & Cognitive Performance, Shanghai Institute of Geriatrics and Gerontology, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Clinical Geriatrics, Huadong Hospital, and Research Center of Aging and Medicine, Shanghai Medical College, Fudan University, Shanghai, China
| | - Zhao Han
- Department of Otolaryngology, Huadong Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Qingwei Ruan
- Laboratory of Aging, Anti-aging & Cognitive Performance, Shanghai Institute of Geriatrics and Gerontology, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Clinical Geriatrics, Huadong Hospital, and Research Center of Aging and Medicine, Shanghai Medical College, Fudan University, Shanghai, China
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4
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Lee SY, Chang M, Kwon B, Choi BY, Koo JW, Moon T, De Ridder D, Vanneste S, Song JJ. Is the posterior cingulate cortex an on-off switch for tinnitus?: A comparison between hearing loss subjects with and without tinnitus. Hear Res 2021; 411:108356. [PMID: 34600166 DOI: 10.1016/j.heares.2021.108356] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 08/14/2021] [Accepted: 09/20/2021] [Indexed: 12/29/2022]
Abstract
As the human brain works in a Bayesian manner to minimize uncertainty toward external stimuli, the deafferented brain may generate tinnitus in an attempt to fill in missing auditory information, e.g. due to hearing loss. However, not everybody with hearing loss develops tinnitus. Understanding the differences between people with hearing loss who develop tinnitus versus those who do not offers a unique opportunity to unravel critical brain areas involved in the generation of a phantom sound. In this study, we compared resting-state quantitative electroencephalography between hearing loss patients with (HL-T) and without tinnitus (HL-NT) to identify cortical oscillatory signatures that may reveal prerequisites for the selective development of tinnitus in subjects with hearing loss. We enrolled 65 subjects with HL-NT and 65 subjects with HL-T whose tinnitus handicap inventory scores were <16 (grade 1) to minimize the bias induced by distress-induced cortical activity changes. Subjects in the HL-T and HL-NT groups were matched in terms of the bilateral hearing threshold (0.25-8 kHz) using nearest neighbor method. Compared to the HL-NT group, the HL-T group showed significantly higher activity in the right parahippocampus for the beta 1 frequency band, in the left inferior parietal lobule (IPL) for the beta 2 frequency band, and in the right IPL for the beta 3- and gamma frequency bands. Functional connectivity analyses revealed that the HL-T group had significantly higher connectivity than the HL-NT group between both parahippocampal gyri and the right IPL for the delta frequency band, and between the left posterior cingulate cortex (PCC) and right IPL for the beta 2 frequency band. These results suggest that tinnitus may be perceived only if auditory memory stored in the parahippocampus is actively linked to the IPL-based "circuit breaker" system and the circuit breaker signal is connected to the PCC-based default mode network (DMN). Thus, when the circuit breaker system regards tinnitus secondary to peripheral deafferentation as a salient event and then the DMN regards tinnitus as a norm, subjects with hearing loss may consciously perceive tinnitus. The results of this study further refine the recently proposed Bayesian model and decipher the neurobiological mechanism of the selective development of tinnitus in subjects with hearing loss.
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Affiliation(s)
- Sang-Yeon Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, 13620, Korea
| | - Munyoung Chang
- Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Chung-Ang University, Seoul, Korea
| | | | - Byung Yoon Choi
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, 13620, Korea
| | - Ja-Won Koo
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, 13620, Korea
| | - Taesup Moon
- Department of Electrical and Computer Engineering, Seoul National University, Seoul, Korea
| | - Dirk De Ridder
- Unit of Neurosurgery, Department of Surgical Sciences, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
| | - Sven Vanneste
- Lab for Clinical & Integrative Neuroscience, Trinity College of Neuroscience, Trinity College Dublin, Ireland
| | - Jae-Jin Song
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, 13620, Korea..
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5
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Choi JH, Park SS, Kim SY. Associations of Earphone Use with Tinnitus and Anxiety/Depression. Noise Health 2021; 23:108-116. [PMID: 34975126 PMCID: PMC8772443 DOI: 10.4103/nah.nah_48_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Objective: This study aimed to investigate the association of earphone use with audiologic and psychologic factors. Materials and methods: Korea National Health and Nutrition Examination Survey 2010–2012 data were collected for participants aged ≥12 years old with earphone use ≥1 hour/day. They were matched to a control group for age, sex, income, and education level. The relationship between earphone use and the hearing thresholds of pure-tone audiometry, tinnitus, and psychologic factors such as depression and anxiety, and other quality of life variables was analyzed using multiple logistic regression tests with complex sampling. Results: Among the participants, 22.9% (449/1955) of earphone users and 18.1% (355/1600) of control participants had tinnitus (P < 0.001). Earphone users showed 1.27-times higher odds for tinnitus (95% confidence interval [CI] = 1.09–1.50, P = 0.003). Moreover, 6.5% (128/1955) of earphone users and 5.0% (97/1600) of control participants had anxiety and depressive symptoms (P = 0.033). Earphone users showed 1.32-times higher odds for anxiety and depressive symptoms (95% CI = 1.14–1.52, P = 0.040). Nevertheless, the hearing thresholds were comparable between earphone users and control participants. Conclusion: Earphone use was associated with tinnitus and anxiety or depressive symptoms.
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Affiliation(s)
- Jay Hyug Choi
- Department of Otorhinolaryngology-Head and Neck Surgery, CHA University College of Medicine, Korea
| | - Sung Su Park
- Department of Otorhinolaryngology-Head and Neck Surgery, CHA University College of Medicine, Korea
| | - So Young Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, CHA University College of Medicine, Korea
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6
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Yun Y, Lee SY, Choi WH, Park JC, Lee DH, Kim YK, Lee JH, Lee JY, Lee MJ, Kim YH. Proteasome Activity in the Plasma as a Novel Biomarker in Mild Cognitive Impairment with Chronic Tinnitus. J Alzheimers Dis 2021; 78:195-205. [PMID: 32955464 PMCID: PMC7683073 DOI: 10.3233/jad-200728] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BACKGROUND Although the existence of proteasomes in human blood, termed circulating proteasomes (c-proteasomes), has been reported previously, their origin and pathophysiological functions remain largely unknown. OBJECTIVE Given that c-proteasome activity was significantly reduced in Alzheimer's disease model mice and relatively high frequency of mild cognitive impairment (MCI) is accompanied by chronic tinnitus in aged patients, we examined whether c-proteasome activity in human plasma was associated with cognitive function in patients with chronic tinnitus. METHODS c-Proteasome activity in the plasma of tinnitus patients (N = 55) was measured with fluorogenic reporter substrate, suc-LLVY-AMC. To assess MCI, the Montreal Cognitive Assessment was conducted with a cut-off score of 22/23. All patients underwent audiological and psychoacoustic analyses. Levels of c-proteasomes, Aβ42, and Aβ40 were measured using ELISA, and their association with c-proteasome activity was evaluated. RESULTS The activity of circulating proteasomes was significantly lower in patients with chronic tinnitus and MCI (p = 0.042), whereas activities of other plasma enzymes showed little correlation. In addition, c-proteasome activity was negatively associated with the level of plasma Aβ and was directly dependent on its own concentration in the plasma of patients with chronic tinnitus. CONCLUSION Our current work provides a new perspective for understanding the potential relationship between circulating proteasomes in the plasma and cognitive dysfunction, suggesting a novel, non-invasive biomarker in the context of MCI diagnosis.
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Affiliation(s)
- Yejin Yun
- Department of Biochemistry and Molecular Biology, Seoul National University College of Medicine, Seoul, Korea
| | - Sang-Yeon Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Bundang Hospital, Seoul, Korea
| | - Won Hoon Choi
- Department of Biochemistry and Molecular Biology, Seoul National University College of Medicine, Seoul, Korea
| | - Jong-Chan Park
- Department of Biochemistry and Molecular Biology, Seoul National University College of Medicine, Seoul, Korea.,Neuroscience Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Dong Han Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, Konkuk University Medical Center, Seoul, Korea
| | - Yun Kyung Kim
- Center for Neuro-Medicine, Brain Science Institute, Korea Institute of Science and Technology, Seoul, Korea
| | - Jung Hoon Lee
- Department of Biochemistry and Molecular Biology, Seoul National University College of Medicine, Seoul, Korea.,Neuroscience Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Jun-Young Lee
- Department of Psychiatry and Neuroscience Research Institute, Seoul National University College of Medicine, Boramae Medical Center, Seoul, Korea
| | - Min Jae Lee
- Department of Biochemistry and Molecular Biology, Seoul National University College of Medicine, Seoul, Korea.,Neuroscience Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Young Ho Kim
- Department of Otorhinolaryngology, Seoul National University College of Medicine, Boramae Medical Center, Seoul, Korea
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7
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Risk of early-onset dementia among persons with tinnitus: a retrospective case-control study. Sci Rep 2021; 11:13399. [PMID: 34183724 PMCID: PMC8238939 DOI: 10.1038/s41598-021-92802-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 06/16/2021] [Indexed: 12/13/2022] Open
Abstract
Higher rates of poor cognitive performance are known to prevail among persons with tinnitus in all age groups. However, no study has explored the association between tinnitus and early-onset dementia. We hypothesize that tinnitus may precede or occur concurrently with subclinical or early onset dementia in adults younger than 65 years of age. This case–control study used data from the Taiwan National Health Insurance Research Database, identifying 1308 patients with early-onset dementia (dementia diagnosed before 65 years of age) and 1308 matched controls. We used multivariable logistic regressions to estimate odds ratios (ORs) for prior tinnitus among patients with dementia versus controls. Among total 2616 sample participants, the prevalence of prior tinnitus was 18%, 21.5% among cases and 14.5% among controls (p < 0.001). Multivariable logistic regression showed and adjusted OR for prior tinnitus of 1.6 for cases versus controls (95% CI: 1.3 ~ 2.0). After adjusting for sociodemographic characteristics and medical co-morbidities, patients with early-onset dementia had a 67% higher likelihood of having prior tinnitus (OR = 1.628; 95% CI = 1.321–2.006). Our findings showed that pre-existing tinnitus was associated with a 68% increased risk of developing early-onset dementia among young and middle-aged adults. The results call for greater awareness of tinnitus as a potential harbinger of future dementia in this population.
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8
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Brewster KK, Golub JS, Rutherford BR. Neural circuits and behavioral pathways linking hearing loss to affective dysregulation in older adults. NATURE AGING 2021; 1:422-429. [PMID: 37118018 PMCID: PMC10154034 DOI: 10.1038/s43587-021-00065-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 04/12/2021] [Indexed: 04/30/2023]
Abstract
Substantial evidence now links age-related hearing loss to incident major depressive disorder in older adults. However, research examining the neural circuits and behavioral mechanisms by which age-related hearing loss leads to depression is at an early phase. It is known that hearing loss has adverse structural and functional brain consequences, is associated with reduced social engagement and loneliness, and often results in tinnitus, which can independently affect cognitive control and emotion processing circuits. While pathways leading from these sequelae of hearing loss to affective dysregulation and depression are intuitive to hypothesize, few studies have yet been designed to provide conclusive evidence for specific pathophysiological mechanisms. Here we review the neurobiological and behavioral consequences of age-related hearing loss, present a model linking them to increased risk for major depressive disorder and suggest how future studies may facilitate the development of rationally designed therapeutic interventions for older adults with impaired hearing to reduce risk for depression and/or ameliorate depressive symptoms.
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Affiliation(s)
- Katharine K Brewster
- Department of Psychiatry, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA.
- New York State Psychiatric Institute, New York, NY, USA.
| | - Justin S Golub
- Department of Otolaryngology-Head and Neck Surgery, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | - Bret R Rutherford
- Department of Psychiatry, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA
- New York State Psychiatric Institute, New York, NY, USA
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9
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Malesci R, Brigato F, Di Cesare T, Del Vecchio V, Laria C, De Corso E, Fetoni AR. Tinnitus and Neuropsychological Dysfunction in the Elderly: A Systematic Review on Possible Links. J Clin Med 2021; 10:1881. [PMID: 33925344 PMCID: PMC8123622 DOI: 10.3390/jcm10091881] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 04/14/2021] [Accepted: 04/22/2021] [Indexed: 11/17/2022] Open
Abstract
INTRODUCTION Tinnitus is a common and disabling symptom often associated with hearing loss. While clinical practice frequently shows that a certain degree of psychological discomfort often characterizes tinnitus suffers, it has been recently suggested in adults as a determining factor for cognitive decline affecting attention and memory domains. The aim of our systematic review was to provide evidence for a link between tinnitus, psychological distress, and cognitive dysfunction in older patients and to focus on putative mechanisms of this relationship. METHODS We performed a systematic review, finally including 192 articles that were screened. This resulted in 12 manuscripts of which the full texts were included in a qualitative analysis. RESULTS The association between tinnitus and psychological distress, mainly depression, has been demonstrated in older patients, although only few studies addressed the aged population. Limited studies on cognitive dysfunction in aged patients affected by chronic tinnitus are hardly comparable, as they use different methods to validate cognitive impairment. Actual evidence does not allow us with certainty to establish if tinnitus matters as an independent risk factor for cognitive impairment or evolution to dementia. CONCLUSION Tinnitus, which is usually associated with age-related hearing loss, might negatively affect emotional wellbeing and cognitive capacities in older people, but further studies are required to improve the evidence.
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Affiliation(s)
- Rita Malesci
- Audiology Section, Neuroscience, Reproductive Sciences and Dentistry Department, “Federico II” University, via Pansini 5, 80131 Naples, Italy; (R.M.); (V.D.V.); (C.L.)
| | - Francesca Brigato
- Department of Otolaryngology Head & Neck Surgery, School of Medicine, Università Cattolica del Sacro Cuore, Largo F. Vito 1, 00168 Rome, Italy; (F.B.); (T.D.C.); (E.D.C.)
| | - Tiziana Di Cesare
- Department of Otolaryngology Head & Neck Surgery, School of Medicine, Università Cattolica del Sacro Cuore, Largo F. Vito 1, 00168 Rome, Italy; (F.B.); (T.D.C.); (E.D.C.)
| | - Valeria Del Vecchio
- Audiology Section, Neuroscience, Reproductive Sciences and Dentistry Department, “Federico II” University, via Pansini 5, 80131 Naples, Italy; (R.M.); (V.D.V.); (C.L.)
| | - Carla Laria
- Audiology Section, Neuroscience, Reproductive Sciences and Dentistry Department, “Federico II” University, via Pansini 5, 80131 Naples, Italy; (R.M.); (V.D.V.); (C.L.)
| | - Eugenio De Corso
- Department of Otolaryngology Head & Neck Surgery, School of Medicine, Università Cattolica del Sacro Cuore, Largo F. Vito 1, 00168 Rome, Italy; (F.B.); (T.D.C.); (E.D.C.)
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo A. Gemelli 8, 00168 Rome, Italy
| | - Anna Rita Fetoni
- Department of Otolaryngology Head & Neck Surgery, School of Medicine, Università Cattolica del Sacro Cuore, Largo F. Vito 1, 00168 Rome, Italy; (F.B.); (T.D.C.); (E.D.C.)
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo A. Gemelli 8, 00168 Rome, Italy
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Clarke NA, Henshaw H, Akeroyd MA, Adams B, Hoare DJ. Associations Between Subjective Tinnitus and Cognitive Performance: Systematic Review and Meta-Analyses. Trends Hear 2020; 24:2331216520918416. [PMID: 32436477 PMCID: PMC7243410 DOI: 10.1177/2331216520918416] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Tinnitus is the perception of sound in the absence of a corresponding external sound source, and bothersome tinnitus has been linked to poorer cognitive performance. This review comprehensively quantifies the association between tinnitus and different domains of cognitive performance. The review protocol was preregistered and published in a peer-reviewed journal. The review and analyses were reported according to Preferred Reporting Items for Systematic Review and Meta-analysis guidelines. Peer-reviewed literature was searched using electronic databases to find studies featuring participants with tinnitus who had undertaken measures of cognitive performance. Studies were assessed for quality and categorized according to an established cognitive framework. Random-effects meta-analyses were performed on various cognitive domains with potential moderator variables assessed where possible. Thirty-eight records were included in the analysis from a total of 1,863 participants. Analyses showed that tinnitus is associated with poorer executive function, processing speed, general short-term memory, and general learning and retrieval. Narrow cognitive domains of Inhibition and Shifting (within executive function) and learning and retrieval (within general learning and retrieval) were also associated with tinnitus.
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Affiliation(s)
- Nathan A Clarke
- NIHR Nottingham Biomedical Research Centre.,Division of Clinical Neuroscience, School of Medicine, University of Nottingham
| | - Helen Henshaw
- NIHR Nottingham Biomedical Research Centre.,Division of Clinical Neuroscience, School of Medicine, University of Nottingham
| | - Michael A Akeroyd
- Division of Clinical Neuroscience, School of Medicine, University of Nottingham
| | - Bethany Adams
- NIHR Nottingham Biomedical Research Centre.,Division of Clinical Neuroscience, School of Medicine, University of Nottingham
| | - Derek J Hoare
- NIHR Nottingham Biomedical Research Centre.,Division of Clinical Neuroscience, School of Medicine, University of Nottingham
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11
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Lee SY, Kim H, Lee JY, Kim JH, Lee DY, Mook-Jung I, Kim YH, Kim YK. Effects of Chronic Tinnitus on Metabolic and Structural Changes in Subjects With Mild Cognitive Impairment. Front Aging Neurosci 2020; 12:594282. [PMID: 33328974 PMCID: PMC7710517 DOI: 10.3389/fnagi.2020.594282] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 11/02/2020] [Indexed: 01/14/2023] Open
Abstract
Tinnitus is a conscious auditory perception in the absence of an external stimulus. Despite previous reports of a recognized association between tinnitus and cognitive deficits, the effects of tinnitus on functional and structural brain changes associated with cognitive deficits remain unknown. We aimed to investigate the changes in glucose metabolism and gray matter (GM) volume in subjects diagnosed with mild cognitive impairment (MCI) depending on tinnitus. Twenty-three subjects were subclassified into MCI with the chronic tinnitus (MCI_T) and MCI without tinnitus (MCI_NT) groups. Encouraged by the identification of neural substrates associated with tinnitus and cognitive deficits, we correlated the extent of tinnitus severity with the changes in glucose metabolism and GM volume and conducted a glucose metabolic connectivity study. Compared to the MCI_NT group, the MCI_T group showed significantly lower metabolism in the right superior temporal pole and left fusiform gyrus. Additionally, the GM volume in the right insula was markedly lower in the MCI_T group compared to the MCI_NT group. Moreover, correlation analyses in metabolism or GM volumes revealed specific brain regions associated with the cognitive decline with increasing tinnitus severity. Metabolic connectivity analysis revealed that MCI_NT had markedly strengthened intra-hemispheric connectivity in the frontal, parietal, and occipital regions than did MCI_T. Furthermore, MCI_NT showed a strong negative association between the parietal and temporal and parietal and limbic regions, but the association was not observed in MCI_T. These findings indicate that tinnitus may cause metabolic and structural changes in the brain and alters complex inter- or intra-hemispheric networks in MCI. Considering the impact of MCI on accelerating dementia, these results provide a valuable basis on which yet-to-be-identified neurodegenerative markers of tinnitus can be refined.
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Affiliation(s)
- Sang-Yeon Lee
- Department of Otorhinolaryngology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seoul, South Korea
| | - Heejung Kim
- Department of Nuclear Medicine, Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, South Korea.,Institute of Radiation Medicine, Medical Research Center, Seoul National University College of Medicine, Seoul, South Korea
| | - Jun Young Lee
- Department of Psychiatry, Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, South Korea.,Neuroscience Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Ju Hye Kim
- Department of Psychiatry, Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, South Korea
| | - Dong Young Lee
- Departmentof Psychiatry, Seoul National University College of Medicine, Seoul, South Korea.,Institute of Human Behavioral Medicine, Medical Research Center, Seoul National University, Seoul, South Korea
| | - Inhee Mook-Jung
- Neuroscience Research Institute, Seoul National University College of Medicine, Seoul, South Korea.,Department of Biochemistry and Biomedical Science, Seoul National University College of Medicine, Seoul, South Korea
| | - Young Ho Kim
- Department of Otorhinolaryngology, Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, South Korea
| | - Yu Kyeong Kim
- Department of Nuclear Medicine, Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, South Korea
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Lee HY. Beyond Hearing Loss: Does Tinnitus Cause Cognitive Impairment? Clin Exp Otorhinolaryngol 2020; 13:2-3. [PMID: 32036637 PMCID: PMC7010497 DOI: 10.21053/ceo.2019.01949] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 01/22/2020] [Indexed: 12/02/2022] Open
Affiliation(s)
- Ho Yun Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, Eulji University School of Medicine, Daejeon, Korea
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