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Noise. Hearing loss. Noise exposure.

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https://www.readbyqxmd.com/read/28226026/diabetes-mellitus-and-sensorineural-hearing-loss-is-there-an-association-baseline-of-the-brazilian-longitudinal-study-of-adult-health-elsa-brasil
#1
Alessandra G Samelli, Itamar S Santos, Renata R Moreira, Camila M Rabelo, Laurie P Rolim, Isabela J Bensenõr, Paulo A Lotufo
OBJECTIVES: Although several studies have investigated the effects of diabetes on hearing loss, the relationship between these two conditions remains unclear. Some studies have suggested that diabetes may cause sensorineural hearing loss, whereas others have failed to find an association. The biggest challenge in investigating the association between diabetes and hearing loss is the presence of confounding variables and the complexity of the auditory system. Our study investigated the association between diabetes and sensorineural hearing loss...
January 1, 2017: Clinics
https://www.readbyqxmd.com/read/28224282/micrornas-effective-elements-in-ear-related-diseases-and-hearing-loss
#2
REVIEW
Mohammad-Reza Mahmoudian-Sani, Ameneh Mehri-Ghahfarrokhi, Fereshteh Ahmadinejad, Morteza Hashemzadeh-Chaleshtori, Massoud Saidijam, Mohammad-Saeid Jami
miRNAs are important factors for post-transcriptional process that controls gene expression at mRNA level. Various biological processes, including growth and differentiation, are regulated by miRNAs. miRNAs have been demonstrated to play an essential role in development and progression of hearing loss. Nowadays, miRNAs are known as critical factors involved in different physiological, biological, and pathological processes, such as gene expression, progressive sensorineural hearing loss, age-related hearing loss, noise-induced hearing loss, cholesteatoma, schwannomas, and inner ear inflammation...
February 21, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28220907/exposure-to-excessive-sounds-and-hearing-status-in-academic-classical-music-students
#3
Małgorzata Pawlaczyk-Łuszczyńska, Małgorzata Zamojska-Daniszewska, Adam Dudarewicz, Kamil Zaborowski
OBJECTIVES: The aim of this study was to assess hearing of music students in relation to their exposure to excessive sounds. MATERIAL AND METHODS: Standard pure-tone audiometry (PTA) was performed in 168 music students, aged 22.5±2.5 years. The control group included 67 subjects, non-music students and non-musicians, aged 22.8±3.3 years. Data on the study subjects' musical experience, instruments in use, time of weekly practice and additional risk factors for noise-induced hearing loss (NIHL) were identified by means of a questionnaire survey...
February 21, 2017: International Journal of Occupational Medicine and Environmental Health
https://www.readbyqxmd.com/read/28215376/hearing-related-health-among-adult-american-indians-from-a-pacific-northwest-tribe
#4
Kapuaolaokalaniakea Gellert, William Hal Martin, Jodi A Lapidus, Leslie Wosnig, Thomas M Becker
INTRODUCTION: Hearing loss and tinnitus are common in most populations, although few data have addressed hearing-related health among tribal members and the need for public health interventions. METHODS: This cross-sectional study examined prevalence and risk factors for hearing loss and tinnitus among 217 adults in a Pacific Northwest tribe. Frequency measures were conducted for difficulty hearing certain sounds and hearing aid use. In 2006, risk factors were examined for two outcomes-hearing loss and tinnitus-with analysis conducted in the same year...
March 2017: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28214516/saturation-of-long-term-potentiation-in-the-dorsal-cochlear-nucleus-and-its-pharmacological-reversal-in-an-experimental-model-of-tinnitus
#5
Thomas Tagoe, Daniel Deeping, Martine Hamann
Animal models have demonstrated that tinnitus is a pathology of dysfunctional excitability in the central auditory system, in particular in the dorsal cochlear nucleus (DCN) of the brainstem. We used a murine model and studied whether acoustic over-exposure leading to hearing loss and tinnitus, affects long-term potentiation (LTP) at DCN multisensory synapses. Whole cell and field potential recordings were used to study the effects on release probability and synaptic plasticity, respectively in brainstem slices...
February 15, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28194422/pharmacokinetic-properties-of-adenosine-amine-congener-in-cochlear-perilymph-after-systemic-administration
#6
Hao Chang, Ravindra S Telang, Sreevalsan Sreebhavan, Malcolm Tingle, Peter R Thorne, Srdjan M Vlajkovic
Noise-induced hearing loss (NIHL) is a global health problem affecting over 5% of the population worldwide. We have shown previously that acute noise-induced cochlear injury can be ameliorated by administration of drugs acting on adenosine receptors in the inner ear, and a selective A1 adenosine receptor agonist adenosine amine congener (ADAC) has emerged as a potentially effective treatment for cochlear injury and resulting hearing loss. This study investigated pharmacokinetic properties of ADAC in rat perilymph after systemic (intravenous) administration using a newly developed liquid chromatography-tandem mass spectrometry detection method...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28182740/polymorphisms-of-heat-shock-protein-70-genes-hspa1a-hspa1b-and-hspa1l-and-susceptibility-of-noise-induced-hearing-loss-in-a-chinese-population-a-case-control-study
#7
Yanhong Li, Shanfa Yu, Guizhen Gu, Guoshun Chen, Yuxin Zheng, Jie Jiao, Wenhui Zhou, Hui Wu, Zengrui Zhang, Huanling Zhang, Lihua He, Qiuyue Yang, Xiangrong Xu
Noise-induced hearing loss (NIHL) is the second-most frequent form of sensorineural hearing loss. When exposed to the same noise, some workers develop NIHL while others do not, suggesting that NIHL may be associated with genetic factors. To explore the relationship between single nucleotide polymorphisms (SNPs) in heat shock protein 70 (HSP70) genes (HSPA1A, HSPA1B and HSPA1L) and susceptibility to NIHL in Han Chinese workers exposed to noise, a case-control association study was carried out with 286 hearing loss cases and 286 matched with gender, age, type of work, and exposure time, drawn from a population of 3790 noise-exposed workers...
2017: PloS One
https://www.readbyqxmd.com/read/28182600/vital-signs-noise-induced-hearing-loss-among-adults-united-states-2011-2012
#8
Yulia I Carroll, John Eichwald, Franco Scinicariello, Howard J Hoffman, Scott Deitchman, Marilyn S Radke, Christa L Themann, Patrick Breysse
INTRODUCTION: The 2016 National Academies of Sciences report "Hearing Health Care for Adults: Priorities for Improving Access and Affordability" included a call to action for government agencies to strengthen efforts to collect, analyze, and disseminate population-based data on hearing loss in adults. METHODS: CDC analyzed the most recent available data collected both by questionnaire and audiometric tests of adult participants aged 20-69 years in the 2011-2012 National Health and Nutrition Examination Survey (NHANES) to determine the presence of audiometric notches indicative of noise-induced hearing loss...
February 10, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28179609/physical-and-environmental-hazards-in-the-prosthetics-and-orthotics-workshop-a-pilot-study
#9
Sarah Anderson, Rwth Stuckey, Diana Poole, Jodi Oakman
: Background; Prosthetists and Orthotists (P&O) are exposed to physical hazards within the workshop environment. Concern regarding these exposures has been expressed by P&Os; however, little research has been undertaken. Exposures to noise and volatile organic compounds in amounts larger than statutorily allowed can have adverse short and long term consequences on people's health. OBJECTIVES: To identify and quantify hazardous noise and chemical exposures in a typical P&O workplace...
February 7, 2017: Industrial Health
https://www.readbyqxmd.com/read/28165504/implementation-of-a-method-to-visualize-noise-induced-hearing-loss-in-mass-stranded-cetaceans
#10
Maria Morell, Andrew Brownlow, Barry McGovern, Stephen A Raverty, Robert E Shadwick, Michel André
Assessment of the impact of noise over-exposure in stranded cetaceans is challenging, as the lesions that lead to hearing loss occur at the cellular level and inner ear cells are very sensitive to autolysis. Distinguishing ante-mortem pathology from post-mortem change has been a major constraint in diagnosing potential impact. Here, we outline a methodology applicable to the detection of noise-induced hearing loss in stranded cetaceans. Inner ears from two mass strandings of long-finned pilot whales in Scotland were processed for scanning electron microscopy observation...
February 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28164934/epidemiology-and-risk-factors-for-leisure-noise-induced-hearing-damage-in-flemish-young-adults
#11
Sofie Degeest, Els Clays, Paul Corthals, Hannah Keppler
CONTEXT: Young people regularly expose themselves to leisure noise and are at risk for acquiring hearing damage. AIMS: The objective of this study was to compare young adults' hearing status in relation to sociodemographic variables, leisure noise exposure and attitudes and beliefs towards noise. SETTINGS AND DESIGN: A self-administered questionnaire regarding hearing, the amount of leisure noise exposure and attitudes towards noise and hearing protection as well as an audiological test battery were completed...
January 2017: Noise & Health
https://www.readbyqxmd.com/read/28163078/manganese-superoxide-dismutase-influences-the-extent-of-noise-induced-hearing-loss-in-mice
#12
Ayinuer Tuerdi, Makoto Kinoshita, Teru Kamogashira, Chisato Fujimoto, Shinnichi Iwasaki, Takahiko Shimizu, Tatsuya Yamasoba
Reactive oxygen species (ROS) generation is one of the mechanisms underlying noise-induced hearing loss (NIHL). Manganese superoxide dismutase (Mn-SOD), an antioxidant enzyme acting within the mitochondria, converts toxic superoxide to hydrogen peroxide. We investigated the role of Mn-SOD in NIHL by examining the extent of hearing loss and hair cell damage after noise exposure in C57BL/6 wild-type (WT) mice and Mn-SOD heterozygous knockout (HET) mice (n=6 each). Both HET and WT mice were exposed to 120dB sound pressure level at 4kHz octave band noise for 4h...
February 3, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28160812/noise-and-neurotoxic-chemical-exposure-relationship-to-workplace-traumatic-injuries-a-review
#13
Cheryl Fairfield Estill, Carol H Rice, Thais Morata, Amit Bhattacharya
INTRODUCTION: More than 5,000 fatalities and eight million injuries occurred in the workplace in 2007 at a cost of $6 billion and $186 billion, respectively. Neurotoxic chemicals are known to affect central nervous system functions among workers, which include balance and hearing disorders. However, it is not known if there is an association between exposure to noise and solvents and acute injuries. METHOD: A thorough review was conducted of the literature on the relationship between noise or solvent exposures and hearing loss with various health outcomes...
February 2017: Journal of Safety Research
https://www.readbyqxmd.com/read/28159652/auditory-brainstem-response-latency-in-forward-masking-a-marker-of-sensory-deficits-in-listeners-with-normal-hearing-thresholds
#14
Golbarg Mehraei, Andreu Paredes Gallardo, Barbara G Shinn-Cunningham, Torsten Dau
In rodent models, acoustic exposure too modest to elevate hearing thresholds can nonetheless cause auditory nerve fiber deafferentation, interfering with the coding of supra-threshold sound. Low-spontaneous rate nerve fibers, important for encoding acoustic information at supra-threshold levels and in noise, are more susceptible to degeneration than high-spontaneous rate fibers. The change in auditory brainstem response (ABR) wave-V latency with noise level has been shown to be associated with auditory nerve deafferentation...
February 1, 2017: Hearing Research
https://www.readbyqxmd.com/read/28154359/impairments-of-inner-ears-caused-by-physical-environmental-stresses
#15
Nobutaka Ohgami, Reina Oshino, Hiromasa Ninomiya, Xiang Li, Masashi Kato
The inner ears contain the organ of Corti, vestibule and semicircular canal. The organ of Corti is crucial for hearing, while the vestibule and semicircular canal play important roles in maintaining balance. Exposure to noise at excessive levels is known to cause damages of the inner ears, resulting in noise-induced hearing loss. On the other hand, noise levels (dB) are used for the evaluation of health risks by exposure to noise, although noise consists of sound with broad frequencies (Hz). Thus, information about the frequency-dependent effect of noise on health is largely unknown...
2017: Nihon Eiseigaku Zasshi. Japanese Journal of Hygiene
https://www.readbyqxmd.com/read/28125313/effects-of-early-intratympanic-steroid-injection-in-patients-with-acoustic-trauma-caused-by-gunshot-noise
#16
Young-Soo Chang, Kang Hyun Bang, Byoungseo Jeong, Gang-Gyu Lee
CONCLUSION: This study evaluated the efficacy of concurrent administration of ITSI and systemic steroids in delayed treatment of NIHL after gunshot noise exposure. The results showed additional hearing benefits with administration of ITSI. Further evaluation is warranted to confirm this efficacy. OBJECTIVE: This investigation evaluated the effects of early administration of an intratympanic steroid injection (ITSI) in combination with systemic steroids treatment in patients with acoustic trauma caused by gunshot noise...
January 26, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28087419/cochlear-synaptopathy-in-acquired-sensorineural-hearing-loss-manifestations-and-mechanisms
#17
REVIEW
M Charles Liberman, Sharon G Kujawa
Common causes of hearing loss in humans - exposure to loud noise or ototoxic drugs and aging - often damage sensory hair cells, reflected as elevated thresholds on the clinical audiogram. Recent studies in animal models suggest, however, that well before this overt hearing loss can be seen, a more insidious, but likely more common, process is taking place that permanently interrupts synaptic communication between sensory inner hair cells and subsets of cochlear nerve fibers. The silencing of affected neurons alters auditory information processing, whether accompanied by threshold elevations or not, and is a likely contributor to a variety of perceptual abnormalities, including speech-in-noise difficulties, tinnitus and hyperacusis...
January 10, 2017: Hearing Research
https://www.readbyqxmd.com/read/28077280/engineering-out-the-noise
#18
Kurt Yankaskas, Raymond Fischer, Jesse Spence, Jeff Komrower
The US Navy, through an Office of Naval Research (ONR) lead effort on Noise Induced Hearing Loss (NIHL), is investigating methods and techniques to mitigate hearing loss for the crews and warfighters. Hearing protection is a viable and increasingly popular method of reducing hearing exposure for many ship crewmembers; however, it has limitations on comfort and low frequency effectiveness. Furthermore, Personal Hearing Protection (PHP) is often used improperly. Proper vessel planning, programmatic changes and advances in noise control engineering can also have significant impacts by inherently reducing noise exposure through ship design and use of noise control treatments...
January 7, 2017: Hearing Research
https://www.readbyqxmd.com/read/28056268/-investigation-into-the-relationship-between-mitochondrial-12-s-rrna-gene-trna-gene-and-cytochrome-oxidase-%C3%A2-gene-variations-and-the-risk-of-noise-induced-hearing-loss
#19
J Jiao, G Z Gu, G S Chen, Y H Li, H L Zhang, Q Y Yang, X R Xu, W H Zhou, H Wu, L H He, Y X Zheng, S F Yu
Objective: To explore the relationship between mitochondrial 12 S rRNA gene variation, tRNA gene variation and cytochrome oxidase Ⅱ gene point mutations and the risk of noise-induced hearing loss (NIHL). Methods: A nested case-control study was performed that followed a cohort of 7 445 noise-exposed workers in a steel factory in Henan province, China, from January 1, 2006 to December 31, 2015. Subjects whose average hearing threshold was more than 40 dB(A) in high frequency were defined as the case group, and subjects whose average hearing threshold was less than 35 dB(A) in high frequency and less than 25 dB (A) in speech frequency were defined as the control group...
January 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/28056267/-association-between-eye-absent-homolog-4-gene-polymorphisms-and-occupational-noise-induced-hearing-loss
#20
Q Y Yang, X R Xu, J Jiao, Y X Zheng, L H He, S F Yu, G Z Gu, G S Chen, W H Zhou, H Wu, Y H Li, H L Zhang, Z R Zhang
Objective: To identify the association between genetic polymorphisms in the eye absent homolog 4 (EYA4) gene and noise-induced hearing loss (NIHL). Method: A nested case control study was conducted based on a cohort of noise-exposed subjects. In total, 292 cases were selected from a steel factory from 6 297 subjects during Jan 1, 2006 to Dec 12, 2015,who had an average hearing threshold of more than 40 dB(A); 584 matched control subjects for each case were designated on the basis of matched criteria including same gender, age (±5 years) and duration of exposure to noise (±2 years)...
January 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
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