Effects of 900 MHz electromagnetic fields exposure on cochlear cells' functionality in rats: evaluation of distortion product otoacoustic emissions

Bioelectromagnetics. 2005 Oct;26(7):536-47. doi: 10.1002/bem.20127.

Abstract

In recent years, the widespread use of mobile phones has been accompanied by public debate about possible adverse consequences on human health. The auditory system is a major target of exposure to electromagnetic fields (EMF) emitted by cellular telephones; the aim of this study was the evaluation of possible effects of cellular phone-like emissions on the functionality of rat's cochlea. Distortion Products OtoAcoustic Emission (DPOAE) amplitude was selected as cochlea's outer hair cells (OHC) status indicator. A number of protocols, including different frequencies (the lower ones in rat's cochlea sensitivity spectrum), intensities and periods of exposure, were used; tests were carried out before, during and after the period of treatment. No significant variation due to exposure to microwaves has been evidenced.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Audiometry, Evoked Response
  • Audiometry, Pure-Tone
  • Cell Phone*
  • Dose-Response Relationship, Radiation
  • Electromagnetic Fields
  • Environmental Exposure
  • Evoked Potentials, Auditory / physiology*
  • Evoked Potentials, Auditory / radiation effects
  • Male
  • Microwaves*
  • Organ of Corti / physiology*
  • Organ of Corti / radiation effects
  • Otoacoustic Emissions, Spontaneous / physiology*
  • Otoacoustic Emissions, Spontaneous / radiation effects
  • Radiation Dosage
  • Rats
  • Rats, Sprague-Dawley
  • Risk Assessment / methods*
  • Risk Factors