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Effect of electromagnetic radiofrequency radiation on the rats' brain, liver and kidney cells measured by comet assay.

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Trosić I, Pavicić I, Milković-Kraus S, Mladinić M, Zeljezić D. · 2011

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Cell phone radiation caused measurable DNA damage in rat organs at exposure levels comparable to typical phone use.

Plain English Summary

Summary written for general audiences

Researchers exposed rats to cell phone radiation (915 MHz) for one hour daily over two weeks and measured DNA damage in brain, liver, and kidney cells using the comet assay. They found measurable DNA breaks in liver and kidney cells, with slight increases in brain cells compared to unexposed control animals. This suggests that repeated exposure to cell phone-type radiation can cause genetic damage at the cellular level.

Why This Matters

This study adds to the growing body of evidence that radiofrequency radiation from cell phones can damage DNA at the cellular level. The exposure conditions (0.6 W/kg SAR) are well within the range of typical cell phone use, making these findings directly relevant to everyday exposure. What's particularly significant is that the researchers detected DNA damage after just two weeks of one-hour daily exposures. The comet assay used here is a well-established method for detecting DNA strand breaks, giving these results strong scientific credibility. While the study was conducted on rats, DNA damage mechanisms are highly conserved across mammalian species, suggesting these effects could occur in humans under similar exposure conditions.

Exposure Details

Power Density
0.24 µW/m²
Source/Device
915 MHz GSM Mobile
Exposure Duration
1 hour a day, 7 days a week, for 2 weeks

Exposure Context

This study used 0.24 µW/m² for radio frequency:

Building Biology guidelines are practitioner-based limits from real-world assessments. BioInitiative Report recommendations are based on peer-reviewed science. Check Your Exposure to compare your own measurements.

Where This Falls on the Concern Scale

Study Exposure Level in ContextStudy Exposure Level in ContextThis study: 0.24 µW/m²Extreme Concern - 1,000 uW/m2FCC Limit - 10M uW/m2Effects observed in the Slight Concern rangeFCC limit is 41,666,667x higher than this level
A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 915 MHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 915 MHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

Study Details

The goal of study was to evaluate DNA damage in rat's renal, liver and brain cells after in vivo exposure to radiofrequency/microwave (Rf/Mw) radiation of cellular phone frequencies range.

To determine DNA damage, a single cell gel electrophoresis/comet assay was used. Wistar rats (male, ...

In comparison with tail length in controls (13.5 +/- 0.7 microm), the tail was slightly elongated in...

The results of this study suggest that, under the experimental conditions applied, repeated 915 MHz irradiation could be a cause of DNA breaks in renal and liver cells, but not affect the cell genome at the higher extent compared to the basal damage.

Cite This Study
Trosić I, Pavicić I, Milković-Kraus S, Mladinić M, Zeljezić D. (2011). Effect of electromagnetic radiofrequency radiation on the rats' brain, liver and kidney cells measured by comet assay. Coll Antropol 35:1259-1264, 2011.
Show BibTeX
@article{i_2011_effect_of_electromagnetic_radiofrequency_5,
  author = {Trosić I and Pavicić I and Milković-Kraus S and Mladinić M and Zeljezić D.},
  title = {Effect of electromagnetic radiofrequency radiation on the rats' brain, liver and kidney cells measured by comet assay.},
  year = {2011},
  
  url = {http://hrcak.srce.hr/file/112380},
}

Quick Questions About This Study

Yes, a 2011 study found that 915 MHz radiation (GSM mobile frequency) caused measurable DNA breaks in rat liver and kidney cells after one hour daily exposure for two weeks. The comet assay showed significantly longer DNA damage tails in these organs compared to unexposed controls.
DNA damage from 915 MHz GSM radiation occurred after just two weeks of one-hour daily exposures in a rat study. Researchers detected significant DNA breaks in liver and kidney cells using the comet assay, suggesting cellular damage can accumulate relatively quickly.
Liver and kidney cells showed the most DNA damage from 915 MHz radiation exposure, according to a 2011 rat study. Brain cells showed only slight increases in DNA damage, while liver and kidney cells had notably longer damage tails in comet assay tests.
Research suggests yes - rats exposed to 915 MHz radiation for one hour daily over two weeks developed measurable DNA breaks in liver and kidney cells. The study used comet assay testing to detect cellular damage from this realistic exposure duration.
Comet assay testing of 915 MHz GSM radiation showed DNA damage as longer 'tails' in damaged cells. The 2011 study found liver cells had tails measuring 14.5 micrometers versus 13.6 in controls, indicating cellular genetic damage from radiofrequency exposure.