8,700 Studies Reviewed. 87.0% Found Biological Effects. The Evidence is Clear.
Shield Your Body
Cellular Effects

Continuous wave and simulated GSM exposure at 1.8 W/kg and 1.8 GHz do not induce hsp16-1 heat-shock gene expression in Caenorhabditis elegans.

Bioeffects Seen

Dawe AS, Nylund R, Leszczynski D, Kuster N, Reader T, De Pomerai DI. · 2008

View Original Abstract
Share:

High-level cell phone radiation (1.8 W/kg) did not activate cellular stress proteins in test organisms, suggesting minimal biological stress response.

Plain English Summary

Summary written for general audiences

Scientists exposed microscopic worms to cell phone-level radiation (1.8 GHz) to test if it triggers cellular stress responses. The radiation didn't activate stress proteins, and may have slightly reduced them by 15%. This suggests cell phone emissions don't trigger this particular stress response in these organisms.

Why This Matters

This study addresses a critical question in EMF research: whether radiofrequency radiation at levels we encounter from cell phones triggers cellular stress responses. The 1.8 W/kg exposure level tested here represents the upper limit of what's legally permitted from mobile phone handsets, making these findings directly relevant to everyday exposure scenarios. What makes this research particularly noteworthy is that it used higher power levels than previous studies that had suggested possible effects, yet found no stress protein activation. The 15% reduction in stress protein expression under certain conditions is intriguing but requires further investigation to understand its biological significance. This research contributes to our understanding of how organisms respond to RF radiation at realistic exposure levels, though we must remember that effects in simple organisms like nematodes don't necessarily translate directly to human health outcomes.

Exposure Details

SAR
1.8 W/kg
Source/Device
1.8 GHz

Exposure Context

This study used 1.8 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: 1.8 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

The aim of this study is to investigate Continuous wave and simulated GSM exposure at 1.8 W/kg and 1.8 GHz do not induce hsp16-1 heat-shock gene expression in Caenorhabditis elegans.

we have exposed the same transgenic hsp16-1::lacZ strain of C. elegans (PC72) to higher intensity RF...

For both continuous wave (CW) and Talk-pulsed RF exposures (2.5 h at 25 degrees C), there was no ind...

Cite This Study
Dawe AS, Nylund R, Leszczynski D, Kuster N, Reader T, De Pomerai DI. (2008). Continuous wave and simulated GSM exposure at 1.8 W/kg and 1.8 GHz do not induce hsp16-1 heat-shock gene expression in Caenorhabditis elegans. Bioelectromagnetics. 29(2):92-99, 2008.
Show BibTeX
@article{as_2008_continuous_wave_and_simulated_927,
  author = {Dawe AS and Nylund R and Leszczynski D and Kuster N and Reader T and De Pomerai DI.},
  title = {Continuous wave and simulated GSM exposure at 1.8 W/kg and 1.8 GHz do not induce hsp16-1 heat-shock gene expression in Caenorhabditis elegans.},
  year = {2008},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/17902155/},
}
PubMed: 17902155

Cited By (19 papers)

Quick Questions About This Study

A 2008 study found that cell phone radiation at 1.8 GHz didn't trigger stress protein responses in microscopic worms. The radiation exposure, equivalent to maximum phone levels, failed to activate cellular stress genes and may have slightly reduced stress markers by 15%.
Research shows 1.8 GHz radiation doesn't activate heat shock proteins in test organisms. Scientists exposed worms to cell phone-level radiation for 2.5 hours and found no increase in stress protein expression compared to unexposed controls.
One study suggests GSM radiation may not harm cellular stress responses. Researchers found that simulated GSM exposure at phone-level intensities didn't trigger protective stress proteins in worms, indicating this particular cellular defense system remains unaffected.
Mobile phone radiation doesn't appear to affect stress gene expression based on laboratory research. A controlled study found no increase in stress gene activity when organisms were exposed to 1.8 GHz radiation at maximum permitted phone levels.
Continuous wave radiation at cell phone frequencies shows minimal cellular effects in laboratory studies. Research found no activation of cellular stress responses and possibly a slight 15% reduction in background stress markers in exposed organisms.