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Note: This study found no significant biological effects under its experimental conditions. We include all studies for scientific completeness.

Cellular Effects

Human keratinocytes in culture exhibit no response when exposed to short duration, low amplitude, high frequency (900 MHz) electromagnetic fields in a reverberation chamber.

No Effects Found

Roux D, Girard S, Paladian F, Bonnet P, Lalléchère S, Gendraud M, Davies E, Vian A. · 2011

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Brief exposure to very low-level cell phone radiation showed minimal effects on skin cells, but real-world exposure patterns differ significantly.

Plain English Summary

Summary written for general audiences

Researchers exposed human skin cells (keratinocytes) to 900 MHz radiofrequency radiation similar to cell phone signals for 10 minutes at very low power levels. They found essentially no biological effects, with only 20 out of 47,000 genes showing minor changes that weren't confirmed in follow-up testing. This suggests that brief, low-level cell phone radiation exposure may not significantly affect skin cells in laboratory conditions.

Why This Matters

This study represents one piece of the complex puzzle surrounding cell phone radiation and cellular effects. The researchers used extremely low exposure levels (0.0026 to 0.073 W/kg SAR) that are well below typical cell phone use, which ranges from 0.5 to 2 W/kg when held against your head. While finding minimal effects at these low levels isn't surprising, it's worth noting that this study only examined brief 10-minute exposures on isolated skin cells in a lab dish. The reality is that real-world cell phone use involves longer exposures, different tissue types, and more complex biological systems. What this means for you is that while this particular study suggests low-level, brief RF exposure may not dramatically alter skin cell gene expression, it doesn't address the broader questions about cumulative effects or other biological endpoints that concern many researchers in this field.

Exposure Details

SAR
0.0026 to 0.073 W/kg
Electric Field
8 V/m
Source/Device
900 MHz
Exposure Duration
10-min

Exposure Context

This study used 8 V/m for electric fields:

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: 0.0026 to 0.073 W/kgExtreme Concern - 0.1 W/kgFCC Limit - 1.6 W/kgEffects observed in the Slight Concern range (Building Biology)FCC limit is 615 times higher than this level
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

Study Details

We exposed normal human epidermal keratinocytes to short duration, high frequency, and low amplitude electromagnetic fields, similar to that used by mobile phone technologies.

We paid particular attention to the control of the characteristics of the electromagnetic environmen...

Under these conditions, exposure of keratinocytes to the electromagnetic field had little effect; on...

In conclusion, the data presented here show that cultured keratinocytes are not significantly affected by EMF exposure.

Cite This Study
Roux D, Girard S, Paladian F, Bonnet P, Lalléchère S, Gendraud M, Davies E, Vian A. (2011). Human keratinocytes in culture exhibit no response when exposed to short duration, low amplitude, high frequency (900 MHz) electromagnetic fields in a reverberation chamber. Bioelectromagnetics. 32(4):302-311, 2011.
Show BibTeX
@article{d_2011_human_keratinocytes_in_culture_3340,
  author = {Roux D and Girard S and Paladian F and Bonnet P and Lalléchère S and Gendraud M and Davies E and Vian A.},
  title = {Human keratinocytes in culture exhibit no response when exposed to short duration, low amplitude, high frequency (900 MHz) electromagnetic fields in a reverberation chamber. },
  year = {2011},
  
  url = {https://hal.archives-ouvertes.fr/hal-01168765},
}

Quick Questions About This Study

A 2011 study found that 10-minute exposure to 900 MHz radiofrequency radiation at low power levels caused essentially no biological effects in human skin cells (keratinocytes). Only 20 out of 47,000 genes showed minor changes that weren't confirmed in follow-up testing.
Research using human keratinocytes in laboratory conditions found that brief, low-level 900 MHz radiation exposure similar to cell phone signals did not significantly affect these skin cells. The study concluded cultured keratinocytes are not significantly affected by electromagnetic field exposure.
Only 20 genes out of 47,000 total genes showed significant changes when human skin cells were exposed to 900 MHz radiation. These changes were very small (1.5-fold or less) and none were confirmed when researchers used different testing methods.
This 2011 study used a reverberation chamber to expose human keratinocytes to controlled 900 MHz electromagnetic fields, finding minimal biological effects. The controlled laboratory conditions suggest that brief, low-amplitude exposures may not significantly impact skin cell function.
Research found that low amplitude 900 MHz electromagnetic fields caused minimal gene expression changes in human skin cells. The few detected changes had very small expression ratios and weren't reproducible using standard validation methods like polymerase chain reaction.