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 TECHNICAL AND REVIEW ARTICLE
Year : 2018  |  Volume : 22  |  Issue : 2  |  Page : 60-73

Cochlear proteins associated with noise-induced hearing loss: An update


1 Department of Biochemistry, National Institute of Miners' Health JNARDDC Campus, Wadi, Nagpur, Maharashtra, India
2 National Centre for Microbial Resources, National Centre for Cell Science, University of Pune Campus, Pune, Maharashtra, India
3 B. K. Birla College of Science, Arts & Commerce (Autonomous), Kalyan, Maharashtra, India

Correspondence Address:
Dr. Shubhangi K Pingle
Department of Biochemistry, National Institute of Miners' Health (NIMH), JNARDDC Campus, Wadi, Nagpur - 440 023, Maharashtra
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijoem.IJOEM_43_18

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Noise-induced hearing loss (NIHL) is one of the major occupational disease that has influence on the quality of life of mining workers. Several reports suggest NIHL is attributed to noise exposure at workplace and approximately 16% of hearing loss is due to it. NIHL occurs as a result of exposure to high-level noise (>85 dB) in the workplace. Noise disrupts proteins present in the micromachinery of the ear that is required for mechano-electric transduction of sound waves. High-level noise exposure can lead to hearing impairment owing to mechanical and metabolic exhaustion in cochlea, the major organ responsible for resilience of sound. Several key proteins of cochlea include tectorial membrane, inner hair cells, outer hair cells, and stereocilia are damaged due to high-level noise exposure. Numerous studies conducted in animals have shown cochlear proteins involvement in NIHL, but the pertinent literature remains limited in humans. Detection of proteins and pathways perturbed within the micromachinery of the ear after excessive sound induction leads toward the early identification of hearing loss. The situation insisted to present this review as an update on cochlear proteins associated with NIHL after an extensive literature search using several electronic databases which help to understand the pathophysiology of NIHL.






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