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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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WiFi exposure during pregnancy and early life showed no brain stress markers in rat pups, even at levels 40 times higher than typical human exposure.

Plain English Summary

Summary written for general audiences

French researchers exposed pregnant rats and their offspring to WiFi signals (2.4 GHz) from pregnancy through 5 weeks after birth, then examined their brains for signs of cellular stress and damage. They found no differences in stress markers between WiFi-exposed and unexposed rat pups, even at exposure levels up to 4 W/kg. The study suggests that WiFi exposure during critical developmental periods may not cause detectable brain damage in young 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 Duration: Day 6 to day 21 of gestation, newborns per litter were further exposed up to 5 weeks old. Daily 2-h exposures were performed.

Study Details

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. 179:707-716, 2013.
Show BibTeX
@article{s_2013_in_situ_expression_of_2941,
  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://pubmed.ncbi.nlm.nih.gov/23662649/},
}
PubMed: 23662649

Cited By (20 papers)

View all 20 citing papers on Semantic Scholar

Quick Questions About This Study

French researchers found no brain damage in rat pups exposed to 2.4 GHz WiFi signals from pregnancy through 5 weeks after birth. The study examined stress markers and cellular damage indicators, finding no differences between WiFi-exposed and unexposed young rats at exposure levels up to 4 W/kg.
A 2013 study found no increase in heat shock proteins in young rat brains after WiFi exposure during critical developmental periods. Researchers examined brain tissue for cellular stress markers but detected no significant differences between exposed and control groups, even at high exposure levels.
No, researchers found no elevation of 3-nitrotyrosine (a marker of cellular damage) in rat brains after WiFi exposure from pregnancy through early life. The study specifically looked for this oxidative stress indicator but found no significant differences between WiFi-exposed and unexposed animals.
Research shows no detectable brain damage in young rats exposed to WiFi at levels up to 4 W/kg during gestation and early development. French scientists found no differences in cellular stress markers or damage indicators between exposed and control groups in this developmental study.
A controlled study found no deleterious brain effects from repeated 2.4 GHz WiFi exposure during rat gestation and early life. Researchers examined multiple markers of brain damage and cellular stress but observed no significant differences between WiFi-exposed and sham-exposed groups.