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Mobile Phone Radiation Alters Proliferation of Hepatocarcinoma Cells.

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Ozgur E, Guler G, Kismali G, Seyhan N · 2014

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Mobile phone radiation at regulatory limits decreased liver cell survival and caused DNA damage within 4 hours of exposure.

Plain English Summary

Summary written for general audiences

Researchers exposed liver cancer cells to mobile phone radiation at levels typical of phone use (2 W/kg SAR) for up to 4 hours. The radiation decreased cell survival and caused DNA damage, with 1,800-MHz frequencies proving more harmful than 900-MHz. This suggests that the radiofrequency radiation from mobile phones can directly damage cells at exposure levels considered safe by current regulations.

Why This Matters

This study adds to the growing body of evidence that mobile phone radiation affects cellular health at levels well within current safety limits. The 2 W/kg SAR used here is the maximum allowed for phones in many countries, meaning millions of people regularly experience these exposure levels during typical phone use. What makes this research particularly significant is that it demonstrates both immediate cellular damage and DNA harm using multiple measurement techniques. The finding that higher frequencies cause more damage aligns with concerns about 5G networks, which operate at even higher frequencies. While this was conducted on cancer cells in laboratory conditions, it provides biological plausibility for the epidemiological studies linking mobile phone use to increased cancer risk.

Exposure Details

SAR
2 W/kg
Source/Device
900- and 1,800-MHz
Exposure Duration
15 min on, 15 min off for 1, 2, 3, or 4 h

Exposure Context

This study used 2 W/kg for SAR (device absorption):

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: 2 W/kgExtreme Concern - 0.1 W/kgFCC Limit - 1.6 W/kgEffects observed in the Extreme Concern rangeFCC limit is 1x higher than this level
A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 1.80 GHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 1.80 GHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

Study Details

This study investigated the effects of intermittent exposure (15 min on, 15 min off for 1, 2, 3, or 4 h, at a specific absorption rate of 2 W/kg) to enhanced data rates for global system for mobile communication evolution-modulated radiofrequency radiation (RFR) at 900- and 1,800-MHz frequencies on the viability of the Hepatocarcinoma cells (Hep G2).

Hep G2 cell proliferation was measured by a colorimetric assay based on the cleavage of the tetrazol...

It was observed that cell viability, correlated with the LDH and glucose levels, changed according t...

Our results indicate that the applications of 900- and 1,800-MHz (2 W/kg) RFR cause to decrease in the proliferation of the Hep G2 cells after 4 h of exposure. Further studies will be conducted on other frequency bands of RFR and longer duration of exposure.

Cite This Study
Ozgur E, Guler G, Kismali G, Seyhan N (2014). Mobile Phone Radiation Alters Proliferation of Hepatocarcinoma Cells. Cell Biochem Biophys .70(2):983-91, 2014.
Show BibTeX
@article{e_2014_mobile_phone_radiation_alters_1242,
  author = {Ozgur E and Guler G and Kismali G and Seyhan N},
  title = {Mobile Phone Radiation Alters Proliferation of Hepatocarcinoma Cells.},
  year = {2014},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/24817642/},
}
PubMed: 24817642

Cited By (19 papers)

Quick Questions About This Study

Yes, a 2014 study found that mobile phone radiation at 2 W/kg SAR decreased liver cancer cell survival and caused DNA damage. The 1,800-MHz frequency proved more harmful than 900-MHz, with effects becoming more pronounced after 4 hours of exposure at levels considered safe by current regulations.
Research on liver cancer cells shows 1,800-MHz radiation causes more cellular damage than 900-MHz. The study found greater cell death, more DNA damage, and irregular cell nuclei patterns with 1,800-MHz exposure, suggesting higher frequencies may pose increased biological risks at the same power levels.
Cell damage from mobile phone radiation becomes most pronounced after 4 hours of exposure. A study using liver cancer cells found that longer exposure durations produced more significant effects, including decreased cell survival and DNA damage at both 900-MHz and 1,800-MHz frequencies.
Yes, mobile phone radiation at 2 W/kg SAR can cause DNA damage in liver cells. Research showed that exposure to both 900-MHz and 1,800-MHz frequencies led to irregular cell nuclei patterns and positive TUNEL assay results, indicating direct DNA damage at regulatory-approved exposure levels.
Yes, hepatocarcinoma cells exposed to mobile phone radiation showed clear morphological changes. DAPI staining revealed irregular nuclei patterns, particularly after 4-hour exposure to 1,800-MHz radiation at 2 W/kg SAR, supporting biochemical evidence of cellular damage from radiofrequency exposure.