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

Brain & Nervous System

In Situ Expression of Heat-Shock Proteins and 3-Nitrotyrosine in Brains of Young Rats Exposed to a WiFi Signal In Utero and In Early Life

No Effects Found

Aït-Aïssa S, de Gannes FP, Taxile M, Billaudel B, Hurtier A, Haro E, Ruffié G, Athané A, Veyret B, Lagroye I · 2013

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This study found no brain stress markers in young rats exposed to WiFi during development, even at levels exceeding typical human exposure.

Plain English Summary

Summary written for general audiences

French researchers exposed pregnant rats and their newborns to WiFi signals (2450 MHz) for 2 hours daily during pregnancy and early life, then examined brain tissue for signs of stress and damage. They found no differences in stress markers or heat-shock proteins between exposed and unexposed rats at any of the tested exposure levels. The study suggests that WiFi exposure during critical developmental periods may not cause detectable brain damage in rats.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 2.45 GHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 2.45 GHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

The study examined exposure from: 2450 MHz WiFi signal Duration: daily 2h In utero(6 to day 21 of gestation) & daily 2h upto 5 weeks (New Borns per litter)

Study Details

To Study the bioeffects of exposure to Wireless High-Fidelity (WiFi) signals on the developing nervous systems of young rodents was investigated by assessing the in vivo and in situ expression levels of three stress markers: 3-Nitrotyrosine (3-NT), an oxidative stress marker and two heat-shock proteins (Hsp25 and Hsp70).

These biomarkers were measured in the brains of young rats exposed to a 2450 MHz WiFi signal by immu...

No significant difference was observed among exposed and sham-exposed groups

These results suggest that repeated exposure to WiFi during gestation and early life has no deleterious effects on the brains of young rats.

Cite This Study
Aït-Aïssa S, de Gannes FP, Taxile M, Billaudel B, Hurtier A, Haro E, Ruffié G, Athané A, Veyret B, Lagroye I (2013). In Situ Expression of Heat-Shock Proteins and 3-Nitrotyrosine in Brains of Young Rats Exposed to a WiFi Signal In Utero and In Early Life Radiat Res (2013) 179 (6): 707–716.
Show BibTeX
@article{s_2013_in_situ_expression_of_2734,
  author = {Aït-Aïssa S and de Gannes FP and Taxile M and Billaudel B and Hurtier A and Haro E and Ruffié G and Athané A and Veyret B and Lagroye I},
  title = {In Situ Expression of Heat-Shock Proteins and 3-Nitrotyrosine in Brains of Young Rats Exposed to a WiFi Signal In Utero and In Early Life},
  year = {2013},
  
  url = {https://meridian.allenpress.com/radiation-research/article-abstract/179/6/707/149786},
}

Quick Questions About This Study

A 2013 French study found no brain damage in rats exposed to WiFi signals (2450 MHz) for 2 hours daily during pregnancy and early life. Researchers detected no differences in stress markers or heat-shock proteins between exposed and unexposed rat brains, suggesting WiFi may not harm developing brains.
Research shows 2450 MHz WiFi exposure does not increase heat-shock proteins in young rat brains. French scientists exposed pregnant rats and newborns to WiFi for 2 hours daily, then examined brain tissue for stress markers. They found no significant differences between exposed and control groups.
A controlled study found 2-hour daily WiFi exposure (2450 MHz) during pregnancy and early life caused no detectable brain damage in rats. Researchers measured stress markers and heat-shock proteins but observed no significant differences between WiFi-exposed and unexposed young rat brains.
WiFi exposure does not increase 3-nitrotyrosine levels in developing rat brains according to 2013 research. Scientists exposed pregnant rats to 2450 MHz WiFi signals for 2 hours daily, then analyzed brain tissue for this damage marker. No significant differences were found between exposed and control groups.
French researchers found no harmful effects on fetal brain tissue from 2450 MHz WiFi exposure during gestation. Pregnant rats received 2-hour daily WiFi exposure, and subsequent brain analysis revealed no differences in stress markers or cellular damage between exposed and unexposed offspring brains.