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Related Experiment Video

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Cigarette Smoke Exposure in Mice using a Whole-Body Inhalation System

Cigarette Smoke Exposure in Mice using a Whole-Body Inhalation System

Published on: October 22, 2020

Cigarette smoking as a risk factor for auditory problems.

Carolina Pamplona Paschoal¹, Marisa Frasson de Azevedo

¹Hearing Disorder Program, Federal University of Sao Paulo.

Brazilian Journal of Otorhinolaryngology

|March 9, 2010

Summary

Cigarette smoking negatively impacts hearing, causing poorer auditory thresholds and reduced otoacoustic emissions. Smokers show increased risks of cochlear dysfunction and tinnitus, highlighting smoking

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Area of Science:

Ototolaryngology
Public Health
Audiology

Background:

Smoking is a significant public health issue.
The precise relationship between smoking and auditory problems remains unclear.

Purpose of the Study:

To investigate the effects of cigarette smoking on auditory thresholds.
To examine smoking's impact on otoacoustic emissions.
To assess the influence of the medial olivocochlear system's efferent inhibition.

Main Methods:

144 adult participants (smokers and non-smokers) aged 20-31.
Evaluations included conventional and high-frequency audiometry.
Transient evoked otoacoustic emissions and suppression effects were measured.

Main Results:

Smokers exhibited worse auditory thresholds at 12.5 kHz (right ear) and 14 kHz (both ears).
Smokers showed reduced otoacoustic emission responses at 1 kHz (both ears) and 4 kHz (left ear).
Higher incidence of cochlear dysfunction and tinnitus was observed in smokers.

Conclusions:

Cigarette smoking demonstrates a detrimental effect on the auditory system.
Findings suggest smoking contributes to hearing impairment and cochlear issues.