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Inflammation associated with noise-induced hearing loss
Mitchell D Frye1, Allen F Ryan2, Arwa Kurabi2
1Callier Center for Communication Disorders, School of Behavioral and Brain Sciences, The University of Texas at Dallas, Dallas, Texas 75080, USA.
The Journal of the Acoustical Society of America
|December 5, 2019
Summary
Noise-induced hearing loss involves inflammation, where damage-associated molecular patterns (DAMPs) activate immune responses in the cochlea. Anti-inflammatory drugs show promise in treating noise-induced hearing loss.
Area of Science:
- Immunology
- Otolaryngology
- Toxicology
Background:
- Inflammation is a biological response to harmful stimuli like infection and tissue damage.
- Cochlear damage from noise exposure involves an inflammatory component.
- Damage-associated molecular patterns (DAMPs) activate innate immune receptors, initiating inflammation.
Purpose of the Study:
- To explore the role of inflammation in noise-induced cochlear damage.
- To identify potential therapeutic targets for noise-induced hearing loss.
Main Methods:
- Review of existing evidence on inflammation and cochlear damage.
- Analysis of molecular mechanisms involving DAMPs and immune cell recruitment.
- Evaluation of the efficacy of anti-inflammatory interventions.
Main Results:
- Noise exposure induces DAMPs in the cochlea, activating immune receptors.
- Pro-inflammatory cytokines (TNF-alpha, IL-1beta) and chemokines (CCL2) are upregulated post-noise exposure.
- Macrophages are recruited to the cochlea, potentially exacerbating damage.
Conclusions:
- Inflammation plays a significant role in noise-induced hearing loss.
- Targeting inflammatory pathways offers potential therapeutic strategies for noise-induced hearing loss.
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