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Brain & Nervous System

Multigenerational effects of whole body exposure to 2.14 GHz W-CDMA cellular phone signals on brain function in rats

No Effects Found

Shirai T, Imai N, Wang J, Takahashi S, Kawabe M, Wake K, Kawai H, Watanabe S-I, Furukawa F, Fujiwara O · 2014

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Multigenerational whole-body exposure to 2.14 GHz W-CDMA signals for 20 h/day did not cause adverse effects on F1, F2, and F3 offspring.

Plain English Summary

Summary written for general audiences

Researchers exposed rats to 2.14 GHz W-CDMA signals for 20 hours a day over three generations. No abnormalities were observed in mother rats or offspring across any biological parameters including neurobehavioral function. The study used three SAR levels: high (<0.24 W/kg), low (<0.08 W/kg), and sham exposure. Pregnant rats were exposed from gestational day 7 to weaning, and offspring were continuously exposed until 6 weeks of age.

Exposure Details

SAR
0.24,0.08 W/kg
Source/Device
2.14 GHz
Exposure Duration
20 h a day

Where This Falls on the Concern Scale

Study Exposure Level in ContextStudy Exposure Level in ContextThis study: 0.24,0.08 W/kgExtreme Concern - 0.1 W/kgFCC Limit - 1.6 W/kgEffects observed in the Severe Concern range (Building Biology)FCC limit is 20 times higher than this level
A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 2.14 GHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 2.14 GHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

Study Details

The present experimental study was carried out with rats to evaluate the effects of whole body exposure to 2.14 GHz band code division multiple access (W‐CDMA) signals for 20 h a day, over three generations.

The average specific absorption rate (SAR, in unit of W/kg) for dams was designed at three levels: h...

No abnormalities were observed in the mother rats (F0, F1, and F2) and in the offspring (F1, F2, and...

Thus, it was concluded that under the experimental conditions applied, multigenerational whole body exposure to 2.14 GHz W‐CDMA signals for 20 h/day did not cause any adverse effects on the F1, F2, and F3 offspring.

Cite This Study
Shirai T, Imai N, Wang J, Takahashi S, Kawabe M, Wake K, Kawai H, Watanabe S-I, Furukawa F, Fujiwara O (2014). Multigenerational effects of whole body exposure to 2.14 GHz W-CDMA cellular phone signals on brain function in rats Bioelectromagnetics. 35(7):497-511, 2014.
Show BibTeX
@article{t_2014_multigenerational_effects_of_whole_2806,
  author = {Shirai T and Imai N and Wang J and Takahashi S and Kawabe M and Wake K and Kawai H and Watanabe S-I and Furukawa F and Fujiwara O},
  title = {Multigenerational effects of whole body exposure to 2.14 GHz W-CDMA cellular phone signals on brain function in rats},
  year = {2014},
  doi = {10.1002/bem.21871},
  url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/bem.21871},
}
DOI: 10.1002/bem.21871

Cited By (18 papers)

Quick Questions About This Study

Rats were exposed to 2.14 GHz W-CDMA signals for 20 hours a day over three generations.
The study used three SAR levels: high (<0.24 W/kg), low (<0.08 W/kg), and sham exposure.
No abnormalities were observed in mother rats or offspring across any biological parameters including neurobehavioral function.
Pregnant rats were exposed from gestational day 7 to weaning, and offspring were continuously exposed until 6 weeks of age, with the protocol repeated for F2 and F3 generations.
The researchers concluded that multigenerational whole-body exposure to 2.14 GHz W-CDMA signals for 20 hours daily did not cause adverse effects on F1, F2, and F3 offspring.