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Related Experiment Video

Updated: May 25, 2026

Modified Experimental Conditions for Noise-Induced Hearing Loss in Mice and Assessment of Hearing Function and Outer Hair Cell Damage
07:13

Modified Experimental Conditions for Noise-Induced Hearing Loss in Mice and Assessment of Hearing Function and Outer Hair Cell Damage

Published on: February 10, 2023

[Study on discrepant protein expression in rat auditory cortex under impulse noise exposure].

Hua Liao1, Kun Yang, Qing-quan Hua

  • 1Department of Otorhinolaryngology Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China. liaohuadoctor@163.com

Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi = Chinese Journal of Otorhinolaryngology Head and Neck Surgery
|February 11, 2012
PubMed
Summary

Acute impulse noise exposure in rats caused hearing loss and altered auditory cortex proteins. These changes suggest impacts on neuronal function and potential compensatory mechanisms following deafferentation.

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High Resolution Quantitative Synaptic Proteome Profiling of Mouse Brain Regions After Auditory Discrimination Learning

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Area of Science:

  • Neuroscience
  • Proteomics
  • Auditory System Research

Context:

  • Impulse noise exposure is a significant factor in hearing damage.
  • Understanding the molecular changes in the auditory cortex post-noise exposure is crucial for developing interventions.
  • Rodent models provide valuable insights into the effects of acoustic trauma.

Purpose:

  • To investigate the effects of impulse noise-induced deafferentation on auditory function and protein expression in the rat auditory cortex.
  • To identify specific proteins and pathways affected by acute noise exposure using differential proteomics.
  • To explore potential compensatory mechanisms in the auditory cortex following noise-induced hearing loss.

Summary:

  • Adult rats exposed to impulse noise exhibited elevated Auditory Brainstem Response (ABR) thresholds, indicating hearing loss.
  • Proteomic analysis revealed significant changes in 27 proteins within the auditory cortex, associated with cytoskeleton, neurotransmission, energy metabolism, and synaptic remodeling.
  • Partial recovery of auditory function was observed up to 28 days post-exposure, with stable thresholds from day 14 to 28.

Impact:

  • This study highlights the complex molecular responses in the auditory cortex to acoustic trauma.
  • Findings suggest that impulse noise disrupts microtubule transport and cellular metabolism, affecting auditory neuron neurotransmission.
  • The identified protein changes offer potential targets for therapeutic strategies aimed at mitigating noise-induced hearing loss and promoting neural repair.