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Hearing loss and dementia

Robert D Frisina, Bo Ding, Xiaoxia Zhu, Joseph P Walton
Age-related hearing loss (ARHL) -presbycusis - is the most prevalent neurodegenerative disease and number one communication disorder of our aged population; and affects hundreds of millions of people worldwide. Its prevalence is close to that of cardiovascular disease and arthritis, and can be a precursor to dementia. The auditory perceptual dysfunction is well understood, but knowledge of the biological bases of ARHL is still somewhat lacking. Surprisingly, there are no FDA-approved drugs for treatment. Based on our previous studies of human subjects, where we discovered relations between serum aldosterone levels and the severity of ARHL, we treated middle age mice with aldosterone, which normally declines with age in all mammals...
September 23, 2016: Aging
V Guimas, J Thariat, P Graff-Cailleau, P Boisselier, Y Pointreau, P Pommier, X Montbarbon, C Laude, S Racadot
Modern techniques such as intensity modulated radiation therapy (IMRT) have been proven to significantly decrease the dose delivered to the cochleovestibular apparatus, limiting consecutive toxicity especially for sensorineural hearing loss. However, recent data still report a 42% rate of radio-induced hypoacusia underscoring the need to protect the cochleovestibular apparatus. Due to the small size of the cochlea, a precise dose-volume analysis could not be performed, and recommendations only refer to the mean dose...
October 2016: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
Mary E Fischer, Karen J Cruickshanks, Carla R Schubert, Alex A Pinto, Cynthia M Carlsson, Barbara E K Klein, Ronald Klein, Ted S Tweed
OBJECTIVES: To evaluate the associations between sensory impairments and 10-year risk of cognitive impairment. DESIGN: The Epidemiology of Hearing Loss Study (EHLS), a longitudinal, population-based study of aging in the Beaver Dam, Wisconsin community. Baseline examinations were conducted in 1993 and follow-up examinations have been conducted every 5 years. SETTING: General community. PARTICIPANTS: EHLS members without cognitive impairment at EHLS-2 (1998-2000)...
September 9, 2016: Journal of the American Geriatrics Society
Leanne Dibbens, Michael Schwake, Paul Saftig, Guido Rubboli
Action myoclonus-renal failure syndrome (AMRF) is an autosomal recessive progressive myoclonus epilepsy (PME) associated with renal dysfunction that appears in the second or third decade of life and that is caused by loss-of-function mutations in the SCARB2 gene encoding lysosomal integral membrane protein type 2 (LIMP2). Recent reports have documented cases with PME associated with SCARB2 mutations without renal compromise. Additional neurological features can be demyelinating peripheral neuropathy, hearing loss and dementia...
September 1, 2016: Epileptic Disorders: International Epilepsy Journal with Videotape
Alexandre Villeneuve, Caroline Hommet, Charles Aussedat, Emmanuel Lescanne, Kevin Reffet, David Bakhos
The objective of this study is to assess the validity of ASSR as a complementary diagnostic test for peripheral hearing loss by proving a significant correlation between behavioral thresholds and ASSR. The design used in this study is monocentric prospective study from November 2014 to April 2015. The setting used in this study is the ENT-Head and Neck Surgery Department and Geriatrics Department in a French Regional and University Hospital. The participants are patients over 75 years with cognitive impairment (Alzheimer's disease or mild-cognitive impairment) with a Mini-Mental State Examination score under 27/30 and without hearing aids...
August 23, 2016: European Archives of Oto-rhino-laryngology
Katherine S McGilton, Fiona Höbler, Jennifer Campos, Kate Dupuis, Tammy Labreche, Dawn M Guthrie, Jonathan Jarry, Gurjit Singh, Walter Wittich
INTRODUCTION: Hearing and vision loss among long-term care (LTC) residents with dementia frequently goes unnoticed and untreated. Despite negative consequences for these residents, there is little information available about their sensory abilities and care assessments and practices seldom take these abilities or accessibility needs into account. Without adequate knowledge regarding such sensory loss, it is difficult for LTC staff to determine the level of an individual's residual basic competence for communication and independent functioning...
2016: BMJ Open
Chris J D Hardy, Charles R Marshall, Hannah L Golden, Camilla N Clark, Catherine J Mummery, Timothy D Griffiths, Doris-Eva Bamiou, Jason D Warren
Hearing deficits associated with cognitive impairment have attracted much recent interest, motivated by emerging evidence that impaired hearing is a risk factor for cognitive decline. However, dementia and hearing impairment present immense challenges in their own right, and their intersection in the auditory brain remains poorly understood and difficult to assess. Here, we outline a clinically oriented, symptom-based approach to the assessment of hearing in dementias, informed by recent progress in the clinical auditory neuroscience of these diseases...
July 2, 2016: Journal of Neurology
Alexander K Smith, Christine S Ritchie, Yinghui Miao, W John Boscardin, Margaret L Wallhagen
OBJECTIVES: To assess the prevalence and correlates of self-reported hearing loss during the last 2 years of life. DESIGN: Observational cohort study. SETTING: The Health and Retirement Study (HRS), a longitudinal nationally representative cohort of adults aged 50 and older (2000-13). PARTICIPANTS: Older adults (N = 5,895, mean age at death 78, 53% female, 20% nonwhite). MEASUREMENTS: The HRS interview closest to death was used (mean 12...
July 2016: Journal of the American Geriatrics Society
Suzette Brémault-Phillips, Jasneet Parmar, Melissa Johnson, Arlene Huhn, Anna Mann, Victoria Tian, Lori-Ann R Sacrey
BACKGROUND: Family caregivers are the backbone of the healthcare system. Over time, caregiving takes a tremendous toll on the caregiver. This is particularly true for caregivers who (1) provide >21 h of care/week, and/or (2) support those experiencing depression, cognitive decline, aggressive behaviours, and life-limiting conditions requiring complex care. Many caregivers face deteriorating physical and mental health, social isolation, family conflict, and job loss. Caregivers often have little energy or time to access resources and their experiences with the healthcare system, healthcare professionals and service agencies can either buoy them through challenging times, or contribute further to their distress...
2016: SpringerPlus
Raksha A Mudar, Fatima T Husain
Hearing loss is one of the most prevalent chronic health conditions in older adults. Growing evidence suggests that hearing loss is associated with reduced cognitive functioning and incident dementia. In this mini-review, we briefly examine literature on anatomical and functional alterations in the brains of adults with acquired age-associated hearing loss, which may underlie the cognitive consequences observed in this population, focusing on studies that have used structural and functional magnetic resonance imaging, diffusion tensor imaging, and event-related electroencephalography...
2016: Frontiers in Psychology
Alessandra Spada Durante, Margarita Bernal Wieselberg, Nayara Roque, Sheila Carvalho, Beatriz Pucci, Nicolly Gudayol, Kátia de Almeida
INTRODUCTION: The use of hearing aids by individuals with hearing loss brings a better quality of life. Access to and benefit from these devices may be compromised in patients who present difficulties or limitations in traditional behavioral audiological evaluation, such as newborns and small children, individuals with auditory neuropathy spectrum, autism, and intellectual deficits, and in adults and the elderly with dementia. These populations (or individuals) are unable to undergo a behavioral assessment, and generate a growing demand for objective methods to assess hearing...
April 29, 2016: Brazilian Journal of Otorhinolaryngology
Yen-Hsia Wen, Shihn-Sheng Wu, Chun-Hung Richard Lin, Jui-Hsiu Tsai, Pinchen Yang, Yang-Pei Chang, Kuan-Hua Tseng
Dementia is one of the most disabling and burdensome health conditions worldwide. In this study, we identified new potential risk factors for dementia from nationwide longitudinal population-based data by using Bayesian statistics.We first tested the consistency of the results obtained using Bayesian statistics with those obtained using classical frequentist probability for 4 recognized risk factors for dementia, namely severe head injury, depression, diabetes mellitus, and vascular diseases. Then, we used Bayesian statistics to verify 2 new potential risk factors for dementia, namely hearing loss and senile cataract, determined from the Taiwan's National Health Insurance Research Database...
May 2016: Medicine (Baltimore)
S Fortunato, F Forli, V Guglielmi, E De Corso, G Paludetti, S Berrettini, A R Fetoni
Age-related hearing loss (ARHL) has a multifactorial pathogenesis and it is an inevitable hearing impairment associated with reduction of communicative skills related to ageing. Increasing evidence has linked ARHL to more rapid progression of cognitive decline and incidental dementia. Many aspects of daily living of elderly people have been associated to hearing abilities, showing that hearing loss (HL) affects the quality of life, social relationships, motor skills, psychological aspects and function and morphology in specific brain areas...
June 2016: Acta Otorhinolaryngologica Italica
Barbara Borroni, Eleonora Di Gregorio, Laura Orsi, Giovanna Vaula, Chiara Costanzi, Filippo Tempia, Nico Mitro, Donatella Caruso, Marta Manes, Lorenzo Pinessi, Alessandro Padovani, Alfredo Brusco, Loredana Boccone
INTRODUCTION: SCA38 (MIM 611805) caused by mutations within the ELOVL5 gene, which encodes an enzyme involved in the synthesis of long-chain fatty acids with a high and specific expression in Purkinje cells, has recently been identified. OBJECTIVE: The present study was aimed at describing the clinical and neuroimaging features, and the natural history of SCA38. METHODS: We extended our clinical and brain neuroimaging data on SCA38 including 21 cases from three Italian families...
July 2016: Parkinsonism & related Disorders
Lindsey E Jorgensen, Catherine V Palmer, Sheila Pratt, Kirk I Erickson, Deborah Moncrieff
BACKGROUND: Hearing loss and dementia are both prevalent in late adulthood. The most common test used to determine cognitive status in late adulthood, the Mini-Mental State Examination (MMSE), is presented face to face, usually in the context of the physician's office in the presence of background noise. Despite the problems of hearing loss and cognitive problems in late life, there is an absence of evidence linking hearing-related deficits to performance on the MMSE and dementia diagnoses...
April 2016: Journal of the American Academy of Audiology
Jennifer A Deal, Josh Betz, Kristine Yaffe, Tamara Harris, Elizabeth Purchase-Helzner, Suzanne Satterfield, Sheila Pratt, Nandini Govil, Eleanor M Simonsick, Frank R Lin
BACKGROUND: Age-related peripheral hearing impairment (HI) is prevalent, treatable, and may be a risk factor for dementia in older adults. In prospective analysis, we quantified the association of HI with incident dementia and with domain-specific cognitive decline in memory, perceptual speed, and processing speed. METHODS: Data were from the Health, Aging and Body Composition (Health ABC) study, a biracial cohort of well-functioning adults aged 70-79 years. Dementia was defined using a prespecified algorithm incorporating medication use, hospital records, and neurocognitive test scores...
April 12, 2016: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
Adrian Davis, Catherine M McMahon, Kathleen M Pichora-Fuller, Shirley Russ, Frank Lin, Bolajoko O Olusanya, Shelly Chadha, Kelly L Tremblay
Sensory abilities decline with age. More than 5% of the world's population, approximately 360 million people, have disabling hearing loss. In adults, disabling hearing loss is defined by thresholds greater than 40 dBHL in the better hearing ear.Hearing disability is an important issue in geriatric medicine because it is associated with numerous health issues, including accelerated cognitive decline, depression, increased risk of dementia, poorer balance, falls, hospitalizations, and early mortality. There are also social implications, such as reduced communication function, social isolation, loss of autonomy, impaired driving ability, and financial decline...
April 2016: Gerontologist
A Robles Bayón, M G Tirapu de Sagrario, F Gude Sampedro
INTRODUCTION: Different types and localisations of neurological lesions can produce tinnitus and verbal or musical hallucinations (VMH). METHOD: These symptoms were screened for in 1,000 outpatients at a cognitive neurology clinic, and epidemiological and neuroimaging data were recorded. RESULTS: Tinnitus was present in 6.9% of the total and VMH in 0.9%. The paracusia group was predominantly female but the difference was not statistically significant...
March 8, 2016: Neurología: Publicación Oficial de la Sociedad Española de Neurología
Lijie Liu, Pei Shen, Tingting He, Ying Chang, Lijuan Shi, Shan Tao, Xiaowei Li, Qingying Xun, Xiaojing Guo, Zhiping Yu, Jian Wang
Hearing loss has been associated with cognitive decline in the elderly and is considered to be an independent risk factor for dementia. One of the most common causes for acquired sensorineural hearing loss is exposure to excessive noise, which has been found to impair learning ability and cognitive performance in human subjects and animal models. Noise exposure has also been found to depress neurogenesis in the hippocampus. However, the effect is mainly attributed to the oxidant stress of noise on the cognitive brain...
2016: Scientific Reports
Abbas Tafakhori, Alvin Yu Jin Ng, Sumanty Tohari, Byrappa Venkatesh, Hane Lee, Ascia Eskin, Stanley F Nelson, Carine Bonnard, Bruno Reversade, Ariana Kariminejad
BACKGROUND: TWINKLE (c10orf2) gene is responsible for autosomal dominant progressive external ophthalmoplegia (PEO). In rare cases, additional features such as muscle weakness, peripheral neuropathy, ataxia, cardiomyopathy, dysphagia, dysphonia, cataracts, depression, dementia, parkinsonism, and hearing loss have been reported in association with heterozygous mutations of the TWINKLE gene. METHODS: We have studied a large Iranian family with myopathy, dysphonia, dysphagia, and behavior change in addition to PEO in affected members...
February 2016: Archives of Iranian Medicine
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