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

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

Brain & Nervous System

Effects of head-only exposure of rats to GSM-900 on blood-brain barrier permeability and neuronal degeneration.

No Effects Found

de Gannes FP, Billaudel B, Taxile M, Haro E, Ruffié G, Lévêque P, Veyret B, Lagroye I. · 2009

View Original Abstract
Share:

This replication study found no brain damage from 2-hour cell phone radiation exposure, contradicting earlier alarming findings.

Plain English Summary

Summary written for general audiences

Researchers exposed rats to cell phone radiation (GSM-900) for 2 hours and checked for brain damage 14 and 50 days later. They found no evidence of blood-brain barrier leakage or neuronal death at exposure levels ranging from very low to high. This study directly contradicted earlier research that claimed similar exposures caused significant brain damage.

Exposure Information

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

The study examined exposure from: GSM-900 Duration: 2 hours

Study Details

The present study investigated Effects of head-only exposure of rats to GSM-900 on blood-brain barrier permeability and neuronal degeneration.

In our study, 16 Fischer 344 rats (14 weeks old) were exposed head-only to the GSM-900 signal for 2 ...

No apoptotic neurons were found 14 days after the last exposure using the TUNEL method. No statistic...

The findings of our study did not confirm the previous results of Salford et al.

Cite This Study
de Gannes FP, Billaudel B, Taxile M, Haro E, Ruffié G, Lévêque P, Veyret B, Lagroye I. (2009). Effects of head-only exposure of rats to GSM-900 on blood-brain barrier permeability and neuronal degeneration. Radiat Res. 172(3):359-367, 2009.
Show BibTeX
@article{fp_2009_effects_of_headonly_exposure_2998,
  author = {de Gannes FP and Billaudel B and Taxile M and Haro E and Ruffié G and Lévêque P and Veyret B and Lagroye I.},
  title = {Effects of head-only exposure of rats to GSM-900 on blood-brain barrier permeability and neuronal degeneration.},
  year = {2009},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/19708785/},
}
PubMed: 19708785

Cited By (40 papers)

Quick Questions About This Study

No, a 2009 study found no statistically significant albumin leakage in rats after 2-hour GSM-900 exposures. Researchers checked for blood-brain barrier damage 14 and 50 days after exposure but found no evidence of barrier compromise at any tested radiation levels.
No, researchers found no apoptotic neurons 14 days after GSM-900 exposure using the TUNEL method. The study tested various radiation levels but detected no significant neuronal death compared to unexposed control groups of rats.
No, the 2009 de Gannes study directly contradicted Salford's earlier research claiming cell phone radiation caused brain damage. Despite using similar GSM-900 exposures, researchers found no evidence of blood-brain barrier leakage or neuronal degeneration in rats.
No, neuronal degeneration assessed using Fluoro-Jade B staining showed no significant differences between GSM-900 exposed rats and control groups. This specific marker for damaged neurons revealed no radiation-induced brain cell death at any tested exposure levels.
Fifty days after head-only GSM-900 exposure, rats showed no signs of brain damage or blood-brain barrier problems. Researchers found no delayed effects on neuronal health, contradicting claims that cell phone radiation causes long-term brain damage.