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Brain & Nervous System

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

No Effects Found

Galloni P, Lovisolo GA, Mancini S, Parazzini M, Pinto R, Piscitelli M, Ravazzani P, Marino C. · 2005

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This study found no immediate hearing damage from 900 MHz cell phone radiation in rats, but limited exposure details prevent broader conclusions.

Plain English Summary

Summary written for general audiences

Researchers exposed rats to 900 MHz electromagnetic fields (the same frequency used by many cell phones) and measured their hearing function using specialized tests that detect the health of inner ear cells. The study found no significant changes in hearing function during or after EMF exposure. This suggests that cell phone radiation at 900 MHz may not directly damage the delicate hair cells in the cochlea that are essential for hearing.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 900 MHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 900 MHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

The study examined exposure from: 900 MHz

Study Details

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 cell...

No significant variation due to exposure to microwaves has been evidenced.

Cite This Study
Galloni P, Lovisolo GA, Mancini S, Parazzini M, Pinto R, Piscitelli M, Ravazzani P, Marino C. (2005). Effects of 900 MHz electromagnetic fields exposure on cochlear cells' functionality in rats: Evaluation of distortion product otoacoustic emissions. Bioelectromagnetics. 26(7):536-547, 2005.
Show BibTeX
@article{p_2005_effects_of_900_mhz_3033,
  author = {Galloni P and Lovisolo GA and Mancini S and Parazzini M and Pinto R and Piscitelli M and Ravazzani P and Marino C.},
  title = {Effects of 900 MHz electromagnetic fields exposure on cochlear cells' functionality in rats: Evaluation of distortion product otoacoustic emissions.},
  year = {2005},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/16037958/},
}
PubMed: 16037958

Cited By (37 papers)

Quick Questions About This Study

A 2005 study exposed rats to 900 MHz electromagnetic fields and found no significant damage to cochlear hair cells. The research used distortion product otoacoustic emissions to measure inner ear function and detected no changes during or after EMF exposure, suggesting cell phone frequencies may not directly harm hearing.
Research by Galloni and colleagues found no evidence that 900 MHz radiation causes hearing loss. The study measured cochlear cell functionality in rats using specialized hearing tests and detected no significant variations in hearing function due to microwave exposure at cell phone frequencies.
A rat study measuring distortion product otoacoustic emissions found no significant changes from 900 MHz EMF exposure. These specialized tests detect the health of inner ear hair cells, and researchers observed no alterations in cochlear function during or after electromagnetic field exposure.
Italian researchers exposed rat cochlear cells to 900 MHz electromagnetic fields and found no significant effects on inner ear functionality. The study used otoacoustic emission testing to monitor hair cell health and detected no microwave-induced changes in these delicate hearing structures.
A 2005 animal study suggests 900 MHz EMF may not harm cochlear function. Researchers exposed rats to cell phone frequency radiation and used distortion product otoacoustic emissions to assess hearing. They found no significant variation in cochlear cell functionality due to electromagnetic field exposure.