8,700 Studies Reviewed. 87.0% Found Biological Effects. The Evidence is Clear.
Shield Your Body
DNA & Genetic Damage

Is mobile phone radiation genotoxic? An analysis of micronucleus frequency in exfoliated buccal cells.

Bioeffects Seen

de Oliveira FM, Carmona AM2 Ladeira C. · 2017

View Original Abstract
Share:

Mobile phone use showed no DNA damage in cheek cells, but the study lacked actual radiation measurements.

Plain English Summary

Summary written for general audiences

Researchers examined cheek cells from 86 mobile phone users to see if phone radiation causes micronuclei (tiny fragments that indicate DNA damage). They found no difference in DNA damage between the side of the mouth where people held their phones versus the opposite side, and no relationship between daily phone use duration and genetic damage.

Why This Matters

This study adds to a mixed body of research on whether mobile phone radiation damages DNA at the cellular level. The researchers used a well-established biomarker for genetic damage, comparing cells from both sides of users' mouths to account for direct exposure differences. However, the study has significant limitations that weaken its conclusions. The researchers didn't measure actual radiation exposure levels, relying instead on self-reported phone use patterns. Without dosimetry data, we can't know how much EMF these participants actually absorbed, making it impossible to determine safe exposure thresholds. The reality is that modern smartphones emit varying levels of radiation depending on signal strength, network type, and usage patterns. While this study suggests no immediate DNA damage at typical usage levels, the absence of quantified exposure data means we still lack crucial information about dose-response relationships that could inform safety standards.

Exposure Information

Specific exposure levels were not quantified in this study.

Study Details

The aim of this study Is to investigate Is mobile phone radiation genotoxic? An analysis of micronucleus frequency in exfoliated buccal cells

To test whether mobile phone-associated EMF exposure affects the MN frequency in exfoliated buccal c...

No relationship was observed between MN frequency and duration of mobile phone use in daily calls. C...

Our results suggest that mobile phone-associated EMF do not to induce MN formation in buccal cells at the observed exposure levels.

Cite This Study
de Oliveira FM, Carmona AM2 Ladeira C. (2017). Is mobile phone radiation genotoxic? An analysis of micronucleus frequency in exfoliated buccal cells. Mutat Res. 2017 Oct;822:41-46. doi: 10.1016/j.mrgentox.2017.08.001. Epub 2017 Aug 5.
Show BibTeX
@article{fm_2017_is_mobile_phone_radiation_2029,
  author = {de Oliveira FM and Carmona AM2 Ladeira C.},
  title = {Is mobile phone radiation genotoxic? An analysis of micronucleus frequency in exfoliated buccal cells.},
  year = {2017},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/28844241/},
}
PubMed: 28844241

Cited By (15 papers)

Quick Questions About This Study

A 2017 study of 86 mobile phone users found no increase in micronuclei (DNA damage markers) in cheek cells from phone radiation exposure. Researchers compared cells from the phone-holding side versus the opposite side and found no statistically significant difference in genetic damage.
Research examining exfoliated buccal cells from mobile phone users found no relationship between daily phone call duration and micronucleus frequency. The study concluded that mobile phone EMF does not induce DNA fragment formation in mouth cells at observed exposure levels.
A 2017 analysis of cheek cells from 86 mobile phone users found that phone-associated electromagnetic fields do not induce micronucleus formation in buccal cells. The study detected no difference in DNA damage markers between phone-exposed and unexposed sides of the mouth.
Researchers found no statistically significant difference in micronucleus frequency between cheek cells on the phone-holding side (ipsilateral) versus the opposite side (contralateral). This suggests mobile phone radiation doesn't cause localized DNA damage in mouth tissue at typical exposure levels.
While mobile phone radiation showed no effect on DNA damage, the study found a highly significant increase (p<0.0001) in micronucleus frequency among subjects regularly exposed to known genotoxic agents like chemicals or radiation, demonstrating the test's sensitivity to actual DNA damage.