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Increased frequency of micronucleated exfoliated cells among humans exposed in vivo to mobile telephone radiations.

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Yadav AS, Sharma MK. · 2008

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Cell phone users showed nearly three times more genetic damage markers in mouth cells than non-users after average daily use.

Plain English Summary

Summary written for general audiences

Researchers examined cells from the inside of the mouth in 85 regular cell phone users compared to 24 non-users to look for signs of genetic damage. They found that cell phone users had significantly more micronuclei (small fragments that break off from damaged cell nuclei) - nearly three times more than non-users. The longer people had been using phones, the more genetic damage markers appeared in their cells.

Why This Matters

This study adds to a growing body of evidence showing that everyday cell phone use can cause measurable genetic damage in human cells. What makes this research particularly significant is that it examined real-world exposure - people using their phones normally for about an hour per day over 2.35 years on average. The micronucleus test is a well-established method for detecting DNA damage, and the nearly three-fold increase in damaged cells among phone users is substantial. The dose-response relationship the researchers found (more years of use equals more damage) strengthens the case for causation. While the wireless industry often dismisses such studies, this type of cellular damage is exactly what we'd expect to see if radiofrequency radiation is affecting human biology at the molecular level.

Exposure Information

Specific exposure levels were not quantified in this study.

Study Details

This investigation had been taken, with the motive to find out whether mobile phone radiations cause any in vivo effects on the frequency of micronucleated exfoliated cells in the exposed subjects.

A total of 109 subjects including 85 regular mobile phone users (exposed) and 24 non-users (controls...

The means are significantly different in case of MNC and TMN at 0.01% level of significance. The mea...

Although there is a slight increase in mean frequency of KH, BE and BN in exposed subjects but the difference is not found statistically significant. Correlation between 0-1, 1-2, 2-3 and 3-4 years of exposure and the frequency of MNC and TMN has been calculated and found to be positively correlated.

Cite This Study
Yadav AS, Sharma MK. (2008). Increased frequency of micronucleated exfoliated cells among humans exposed in vivo to mobile telephone radiations. Mutat Res. 650(2):175-180, 2008.
Show BibTeX
@article{as_2008_increased_frequency_of_micronucleated_2686,
  author = {Yadav AS and Sharma MK.},
  title = {Increased frequency of micronucleated exfoliated cells among humans exposed in vivo to mobile telephone radiations.},
  year = {2008},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/18248768/},
}
PubMed: 18248768

Cited By (64 papers)

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Quick Questions About This Study

Yes, micronuclei in mouth cells serve as biomarkers for genetic damage from cell phone radiation. A 2008 study found cell phone users had nearly three times more micronuclei in their mouth cells compared to non-users, indicating significant DNA damage from regular phone use.
Researchers tested 85 regular cell phone users and compared them to 24 non-users by examining cells from inside their mouths. The study specifically looked for micronuclei and other genetic damage markers in exfoliated buccal cells collected from participants.
Yes, the study found a positive correlation between years of cell phone use and genetic damage markers. People who used phones for 3-4 years showed more micronuclei and DNA damage in their mouth cells than newer users or non-users.
Micronuclei are small fragments that break off from damaged cell nuclei when chromosomes are broken or lost during cell division. Cell phone users showed significantly higher frequencies of these micronuclei in their mouth cells, indicating ongoing genetic damage.
Yes, genetic damage from cell phone radiation can be detected in mouth cell samples. The 2008 Yadav study used exfoliated buccal cells (cells naturally shed from inside the mouth) to identify micronuclei and other DNA damage markers in phone users.