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Noise induced hearing loss

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https://www.readbyqxmd.com/read/28635495/analysis-of-audiometric-notch-as-a-noise-induced-hearing-loss-phenotype-in-us-youth-data-from-the-national-health-and-nutrition-examination-survey-2005-2010
#1
Ishan S Bhatt, O'neil Guthrie
OBJECTIVE: Bilateral audiometric notch (BN) at 4000-6000 Hz was identified as a noise-induced hearing loss (NIHL) phenotype for genetic association analysis in college-aged musicians. This study analysed BN in a sample of US youth. DESIGN: Prevalence of the BN within the study sample was determined and logistic-regression analyses were performed to identify audiologic and other demographic factors associated with BN. Computer-simulated "flat" audiograms were used to estimate potential influence of false-positive rates in estimating the prevalence of the BN...
February 8, 2017: International Journal of Audiology
https://www.readbyqxmd.com/read/28627704/matrix-metalloproteinase-2-and-9-contribute-to-functional-integrity-and-noise%C3%A2-induced-damage-to-the-blood-labyrinth-barrier
#2
Jun Wu, Weiju Han, Xingrui Chen, Weiwei Guo, Ke Liu, Ruoya Wang, Jishuai Zhang, Na Sai
The cochlear blood-labyrinth barrier (BLB), located in the stria vascularis, is critical for the homeostasis of cochlear solutes and ion transport. Significant disruption to the BLB occurs early during noise‑induced hearing loss. Matrix metalloproteinase (MMP)‑2 and ‑9 are important molecules known to be capable of degrading tight junction (TJ) proteins. The TJ proteins are important components of the extracellular matrix (ECM), required to maintain BLB integrity and permeability. Previous studies have demonstrated that MMP‑2 and ‑9, rich in healthy cochlea, serve an essential role in regulating the cochlear response to acoustic trauma...
June 15, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28598950/drill-induced-cochlear-injury-during-otologic-surgery-intracochlear-pressure-evidence-of-acoustic-trauma
#3
Renee M Banakis Hartl, Jameson K Mattingly, Nathaniel T Greene, Nyssa F Farrell, Samuel P Gubbels, Daniel J Tollin
HYPOTHESIS: Drilling on the incus produces intracochlear pressure changes comparable to pressures created by high-intensity acoustic stimuli. BACKGROUND: New-onset sensorineural hearing loss (SNHL) following mastoid surgery can occur secondary to inadvertent drilling on the ossicular chain. To investigate this, we test the hypothesis that high sound pressure levels are generated when a high-speed drill contacts the incus. METHODS: Human cadaveric heads underwent mastoidectomy, and fiber-optic sensors were placed in scala tympani and vestibuli to measure intracochlear pressures (PIC)...
June 8, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28583912/noise-trauma-induced-behavioral-gap-detection-deficits-correlate-with-reorganization-of-excitatory-and-inhibitory-local-circuits-in-the-inferior-colliculus-and-are-prevented-by-acoustic-enrichment
#4
Joshua J Sturm, Ying-Xin Zhang-Hooks, Hannah Roos, Tuan Nguyen, Karl Kandler
Hearing loss leads to a host of cellular and synaptic changes in auditory brain areas, which are thought to give rise to auditory perception deficits such as temporal processing impairments, hyperacusis, or tinnitus. However, little is known about possible changes in synaptic circuit connectivity that may underlie these hearing deficits. Here, we show that mild hearing loss as a result of brief noise exposure leads to a pronounced reorganization of local excitatory and inhibitory circuits in the mouse inferior colliculus...
June 5, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28562070/the-role-of-micrornas-in-environmental-risk-factors-noise-induced-hearing-loss-and-mental-stress
#5
Verónica Miguel, Julia Yue Cui, Lidia Daimiel, Cristina Espinosa-Díez, Carlos Fernandez-Hernando, Terrance J Kavanagh, Santiago Lamas
SIGNIFICANCE: MicroRNAs (miRNAs) are important regulators of gene expression and define part of the epigenetic signature. Their influence on every realm of biomedicine is established and progressively increasing. The impact of environment on human health is enormous. Among environmental risk factors impinging on quality of life are those of chemical nature (toxic chemicals, heavy metals, pollutants, pesticides) as well as those related to everyday life such as exposure to noise or mental and psychosocial stress...
May 31, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28549396/molecular-mechanisms-underlying-the-protective-effects-of-hydrogen-saturated-saline-on-noise-induced-hearing-loss
#6
Liwei Chen, Mingkun Han, Yan Lu, Daishi Chen, Xuejun Sun, Shiming Yang, Wei Sun, Ning Yu, Suoqiang Zhai
OBJECTIVES: This study aimed to explore the molecular mechanism of the protective effects of hydrogen-saturated saline on NIHL. METHODS: Guinea pigs were divided into three groups: hydrogen-saturated saline; normal saline; and control. For saline administration, the guinea pigs were given daily abdominal injections 3 d before and 1 h before noise exposure. ABR were tested to examine cochlear physiology changes. The changes of 8-hydroxy-desoxyguanosine (8-HOdG), interleukin-1 (IL-1), interleukin-6 (IL-6), interleukin-10 (IL-10), tumor necrosis factor-α (TNF-α), intercellular cell adhesion molecule-1 (ICAM-1) and high mobility group box-1 protein (HMGB1) in the cochlea were also examined...
May 26, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28535812/current-insights-in-noise-induced-hearing-loss-a-literature-review-of-the-underlying-mechanism-pathophysiology-asymmetry-and-management-options
#7
REVIEW
Trung N Le, Louise V Straatman, Jane Lea, Brian Westerberg
BACKGROUND: Noise-induced hearing loss is one of the most common forms of sensorineural hearing loss, is a major health problem, is largely preventable and is probably more widespread than revealed by conventional pure tone threshold testing. Noise-induced damage to the cochlea is traditionally considered to be associated with symmetrical mild to moderate hearing loss with associated tinnitus; however, there is a significant number of patients with asymmetrical thresholds and, depending on the exposure, severe to profound hearing loss as well...
May 23, 2017: Journal of Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28532971/clinical-and-audiological-characteristics-of-1000hz-audiometric-notch-patients
#8
Hyun-Min Lee, Seok-Hyun Kim, Jae-Hwan Jung, Se-Joon Oh, Soo-Keun Kong, Il-Woo Lee
PURPOSE: Among the hearing loss patients, we can confirm that the hearing loss of the specific frequency decreases, such as the 2000Hz notch in otosclerosis and the 4000Hz notch (c5-dip) in noise-induced hearing loss. The 1000Hz notch (c3-dip), however, is rarely studied. We fortuitously encountered a group of patients with a 1kHz hearing loss and report it with a review of the literature. METHODS: Otological history, audiogram, diagnosis, occupation, and history of noise exposure were reviewed from charts and telephone interview, and compared between c3-dip and c5-dip patients (n=98)...
April 1, 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/28514024/historical-review-of-efforts-to-reduce-noise-induced-hearing-loss-in-the-united-states
#9
Madeleine J Kerr, Richard L Neitzel, OiSaeng Hong, Robert T Sataloff
BACKGROUND: Noise-induced hearing loss is a centuries-old problem that is still prevalent in the United States and worldwide. AIM: To describe highlights in the development of hearing loss prevention in the U.S. from World War II to the present. METHODS: Literature review. RESULTS: Approaches to occupational noise-induced hearing loss prevention in the United States over the past seven decades are described using a hierarchy of controls framework and an interdisciplinary perspective...
June 2017: American Journal of Industrial Medicine
https://www.readbyqxmd.com/read/28489444/noise-induced-hearing-loss-a-modern-epidemic
#10
Lema Imam, S Alam Hannan
Hearing loss is an increasingly common problem in the UK, and noise-induced hearing loss is the second most common acquired cause. There is a greater burden on the younger population, as recreational noise exposure is an important contributor. New damaging hearing behaviours have emerged including loud music exposure at concerts, nightclubs and via personal music players. The mechanism of damage is thought to involve many diverse pathways, which include oxidative damage, mechanical shearing forces and glutamate excitotoxicity...
May 2, 2017: British Journal of Hospital Medicine
https://www.readbyqxmd.com/read/28460252/effects-of-noise-induced-hearing-loss-on-parvalbumin-and-perineuronal-net-expression-in-the-mouse-primary-auditory-cortex
#11
Anna Nguyen, Haroun M Khaleel, Khaleel A Razak
Noise induced hearing loss is associated with increased excitability in the central auditory system but the cellular correlates of such changes remain to be characterized. Here we tested the hypothesis that noise-induced hearing loss causes deterioration of perineuronal nets (PNNs) in the auditory cortex of mice. PNNs are specialized extracellular matrix components that commonly enwrap cortical parvalbumin (PV) containing GABAergic interneurons. Compared to somatosensory and visual cortex, relatively less is known about PV/PNN expression patterns in the primary auditory cortex (A1)...
April 27, 2017: Hearing Research
https://www.readbyqxmd.com/read/28441318/retraction-yu-et-al-low-iron-diet-increases-susceptibility-to-noise-induced-hearing-loss-in-young-rats-nutrients-2016-8-456
#12
Nutrients Editorial Office
The Nutrients Editorial Office has recently been made aware that the figures in the title paper [1] are taken from the same micrographs as those of other papers by the same authors [...].
April 25, 2017: Nutrients
https://www.readbyqxmd.com/read/28432353/severe-hearing-loss-and-outer-hair-cell-death-in-homozygous-foxo3-knockout-mice-after-moderate-noise-exposure
#13
Felicia Gilels, Stephen T Paquette, Holly J Beaulac, Anwen Bullen, Patricia M White
Noise induced hearing loss (NIHL) is a disease that affects millions of Americans. Identifying genetic pathways that influence recovery from noise exposure is an important step forward in understanding NIHL. The transcription factor Foxo3 integrates the cellular response to oxidative stress and plays a role in extending lifespan in many organisms, including humans. Here we show that Foxo3 is required for auditory function after noise exposure in a mouse model system, measured by ABR. Absent Foxo3, outer hair cells are lost throughout the middle and higher frequencies...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28431308/hyperexcitability-of-inferior-colliculus-and-acoustic-startle-reflex-with-age-related-hearing-loss
#14
Binbin Xiong, Ana'am Alkharabsheh, Senthilvelan Manohar, Guang-Di Chen, Ning Yu, Xiaoming Zhao, Richard Salvi, Wei Sun
Chronic tinnitus and hyperacusis often develop with age-related hearing loss presumably due to aberrant neural activity in the central auditory system (CAS) induced by cochlear pathologies. However, the full spectrum of physiological changes that occur in the CAS as a result age-related hearing loss are still poorly understood. To address this issue, neurophysiological measures were obtained from the cochlea and the inferior colliculus (IC) of 2, 6 and 12 month old C57BL/6J mice, a mouse model for early age-related hearing loss...
March 27, 2017: Hearing Research
https://www.readbyqxmd.com/read/28422611/predictors-of-hearing-protection-use-among-industrial-workers
#15
Kunlayanee Tantranont, Nuntanat Codchanak
Promoting the use of hearing protection devices (HPDs) can prevent noise-induced hearing loss (NIHL) among workers who are exposed to excessive noise. In the present study, the authors examine factors that may explain HPD use among industrial workers from 15 manufacturing plants in Thailand. Participants consisted of 268 randomly selected workers exposed to harmful noise levels for which routine HPD use was required. Logistic regression analysis of study variables revealed the most powerful predictors of HPD use were perceived hearing status ( b = 0...
April 1, 2017: Workplace Health & Safety
https://www.readbyqxmd.com/read/28420774/preventing-noise-induced-hearing-loss
#16
Julia Doswell Royster
Noise-induced hearing loss (NIHL) is second only to presbycusis, age-related hearing loss, as a cause of hearing impairment; yet, it is preventable. This commentary summarizes the effects of noise on hearing, relevant workplace regulations, and ways to minimize excessive noise's deleterious impact on individuals' quality of life on and off the job.
March 2017: North Carolina Medical Journal
https://www.readbyqxmd.com/read/28418325/variation-in-music-player-listening-level-as-a-function-of-campus-location
#17
Yunea Park, Diana Guercio, Victoria Ledon, Colleen G Le Prell
BACKGROUND: There has been significant discussion in the literature regarding music player use by adolescents and young adults, including whether device use is driving an increase in hearing loss in these populations. While many studies report relatively safe preferred listening levels, some studies with college student participants have reported listening habits that may put individuals at risk for noise-induced hearing loss (NIHL) if those listening habits continue over the long term...
April 2017: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/28397520/perceptions-of-public-primary-school-teachers-regarding-noise-induced-hearing-loss-in-south-africa
#18
Katerina Ehlert
BACKGROUND: Noise-induced hearing loss (NIHL) is an increasingly growing problem in young children. This is attributed to recreational noise being the most common cause of this problem. In young children, hearing problems can delay language development and reduce academic achievements. South Africa, in particular, has limited information and protective measures regarding the conservation of hearing in school-aged children. OBJECTIVES: The main aim of the study was to determine the perception of primary school teachers regarding NIHL...
March 28, 2017: South African Journal of Communication Disorders. die Suid-Afrikaanse Tydskrif Vir Kommunikasieafwykings
https://www.readbyqxmd.com/read/28394667/differences-between-acoustic-trauma-and-other-types-of-acute-noise-induced-hearing-loss-in-terms-of-treatment-and-hearing-prognosis
#19
Tetsuro Wada, Hajime Sano, Shin-Ya Nishio, Ryosuke Kitoh, Tetsuo Ikezono, Satoshi Iwasaki, Kimitaka Kaga, Atsushi Matsubara, Tatsuo Matsunaga, Takaaki Murata, Yasushi Naito, Mikio Suzuki, Haruo Takahashi, Testuya Tono, Hiroshi Yamashita, Akira Hara, Shin-Ichi Usami
OBJECTIVES: To evaluate the differences between acoustic trauma (AT) and other types of acute noise-induced hearing loss (ANIHL), we performed a literature search and case reviews. METHODS: The literature search based on online databases was completed in September 2016. Articles on ANIHL and steroid treatment for human subjects were reviewed. The source sounds and treatment sequelae of our accumulated cases were also reviewed. Hearing loss caused by gun-shots and explosions was categorized into the AT group, while hearing loss caused by concerts and other noises was categorized into the ANIHL group...
2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28372133/a-review-of-the-history-development-and-application-of-auditory-weighting-functions-in-humans-and-marine-mammals
#20
Dorian S Houser, William Yost, Robert Burkard, James J Finneran, Colleen Reichmuth, Jason Mulsow
This document reviews the history, development, and use of auditory weighting functions for noise impact assessment in humans and marine mammals. Advances from the modern era of electroacoustics, psychophysical studies of loudness, and other related hearing studies are reviewed with respect to the development and application of human auditory weighting functions, particularly A-weighting. The use of auditory weighting functions to assess the effects of environmental noise on humans-such as hearing damage-risk criteria-are presented, as well as lower-level effects such as annoyance and masking...
March 2017: Journal of the Acoustical Society of America
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