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Studying gene expression profile of rat neuron exposed to 1800MHz radiofrequency electromagnetic fields with cDNA microassay.

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Zhao R, Zhang S, Xu Z, Ju L, Lu D, Yao G. · 2007

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Cell phone radiation altered 34 genes in brain neurons at exposure levels comparable to heavy phone use.

Plain English Summary

Summary written for general audiences

Chinese researchers exposed rat brain neurons to cell phone-frequency radiation (1800 MHz) for 24 hours at power levels similar to heavy phone use. They found that 34 genes changed their activity levels, affecting how neurons function in areas like cell structure, communication, and metabolism. This demonstrates that radiofrequency radiation can alter the fundamental genetic programming of brain cells.

Why This Matters

This study provides direct molecular evidence that cell phone radiation affects brain cell function at the genetic level. The researchers used 1800 MHz frequency with 217 Hz pulsing - the exact specifications used by GSM mobile phones. At 2 W/kg SAR, this exposure level falls within the range you might experience during extended phone calls held close to your head. What makes this research particularly significant is that it shows EMF effects aren't just about heating tissue - they're about changing how genes operate in neurons. The fact that 34 different genes were affected suggests widespread cellular disruption, not isolated incidents. While this was conducted on isolated rat neurons rather than whole organisms, it adds to the growing body of evidence that radiofrequency radiation has biological effects well below thermal thresholds.

Exposure Details

SAR
2 W/kg
Source/Device
1800 MHz modulated by 217 Hz
Exposure Duration
24h

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 217 Hz - 1.80 GHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 217 Hz - 1.80 GHzPower lines50/60 HzCell phones~1 GHzWiFi2.4 GHz5G mm28 GHzLogarithmic scale

Study Details

The aim of this investigation was to determine whether 1800 MHz radiofrequency electromagnetic fields (RF EMF) can influence the gene expression of neuron.

Affymetrix Rat Neurobiology U34 array was applied to investigate the changes of gene expression in r...

Among 1200 candidate genes, 24 up-regulted genes and 10 down-regulated genes were identified after 2...

The present results indicated that the gene expression of rat neuron could be altered by exposure to RF EMF under our experimental conditions.

Cite This Study
Zhao R, Zhang S, Xu Z, Ju L, Lu D, Yao G. (2007). Studying gene expression profile of rat neuron exposed to 1800MHz radiofrequency electromagnetic fields with cDNA microassay. Toxicology 235:167-175, 2007.
Show BibTeX
@article{r_2007_studying_gene_expression_profile_25,
  author = {Zhao R and Zhang S and Xu Z and Ju L and Lu D and Yao G.},
  title = {Studying gene expression profile of rat neuron exposed to 1800MHz radiofrequency electromagnetic fields with cDNA microassay.},
  year = {2007},
  
  url = {http://www.sciencedirect.com/science/article/pii/S0300483X07001837},
}

Quick Questions About This Study

Yes, research shows cell phone radiation can alter gene activity in brain neurons. A 2007 Chinese study found that 1800 MHz radiation changed the expression of 34 genes in rat brain cells after 24 hours of exposure at levels similar to heavy phone use.
Research indicates phone radiation can impact how brain cells function. Scientists exposed rat neurons to cell phone frequencies and discovered changes in genes controlling cell structure, communication pathways, and metabolism - fundamental processes that keep neurons working properly.
Studies suggest 1800 MHz radiation can affect neuron gene expression. Chinese researchers found this frequency altered 34 different genes in rat brain cells, affecting cellular functions like structure and communication. The changes occurred at radiation levels comparable to heavy mobile phone use.
Cell phone EMF can modify which genes are active in brain cells. Research showed 24-hour exposure to 1800 MHz radiation changed 34 genes in rat neurons, with 24 genes becoming more active and 10 becoming less active at typical phone use power levels.
Phone radiation may alter genetic activity in brain cells. A laboratory study found cell phone frequencies changed how 34 genes functioned in rat neurons, affecting processes like cell structure and metabolism. These genetic changes occurred at radiation levels similar to heavy phone use.