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Cognitive Impairment and Neurogenotoxic Effects in Rats Exposed to Low-Intensity Microwave Radiation

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Deshmukh PS, Nasare N, Megha K, Banerjee BD, Ahmed RS, Singh D, Abegaonkar MP, Tripathi AK, Mediratta PK · 2015

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Rats exposed to low-intensity microwave radiation at 900, 1800, or 2450 MHz for 180 days showed declined cognitive function, elevated HSP70, and DNA damage in the brain.

Plain English Summary

Summary written for general audiences

Researchers exposed male Fischer rats to microwave radiation for 180 days at 3 different frequencies, namely, 900, 1800 MHz, and 2450 MHz. The study investigated effects on cognitive function, heat shock protein 70 (HSP70), and DNA damage in rat brain. The results showed declined cognitive function, elevated HSP70 level, and DNA damage in the brains of microwave-exposed animals. The researchers concluded that chronic low-intensity microwave exposure in the frequency range of 900 to 2450 MHz may cause hazardous effects on the brain.

Why This Matters

Animals were divided into 4 groups: a sham-exposed control group and groups exposed at 900 MHz, 1800 MHz, and 2450 MHz. The specific absorption rates for the exposure groups were 5.953 × 10−4 W/kg at 900 MHz, 5.835 × 10−4 W/kg at 1800 MHz, and 6.672 × 10−4 W/kg at 2450 MHz. HSP70 levels were measured using an enzyme-linked immunotarget assay, and DNA damage was assessed using an alkaline comet assay. All rats were tested for cognitive function at the end of the exposure period.

Exposure Details

SAR
0.0005953 ,0.0005835 , 0.0006672 W/kg
Source/Device
900, 1800 or 2450 MHz
Exposure Duration
2 h/day, 5 days/week for 180 days

Where This Falls on the Concern Scale

Study Exposure Level in ContextStudy Exposure Level in ContextThis study: 0.0005953 ,0.0005835 , 0.0006672 W/kgExtreme Concern - 0.1 W/kgFCC Limit - 1.6 W/kgEffects documented below the Building Biology "No Concern" threshold (0.001 W/kg)FCC limit is 2,742 times higher than this level
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

Study Details

The present study aimed to investigate the effects of chronic low-intensity microwave exposure on cognitive function, heat shock protein 70 (HSP70), and DNA damage in rat brain.

Experiments were performed on male Fischer rats exposed to MWR for 180 days at 3 different frequenci...

The results showed declined cognitive function, elevated HSP70 level, and DNA damage in the brain of...

The results indicated that, chronic low-intensity microwave exposure in the frequency range of 900 to 2450 MHz may cause hazardous effects on the brain

Cite This Study
Deshmukh PS, Nasare N, Megha K, Banerjee BD, Ahmed RS, Singh D, Abegaonkar MP, Tripathi AK, Mediratta PK (2015). Cognitive Impairment and Neurogenotoxic Effects in Rats Exposed to Low-Intensity Microwave Radiation Int J Toxicol. 2015 Mar 5. pii: 1091581815574348.
Show BibTeX
@article{ps_2015_cognitive_impairment_and_neurogenotoxic_93,
  author = {Deshmukh PS and Nasare N and Megha K and Banerjee BD and Ahmed RS and Singh D and Abegaonkar MP and Tripathi AK and Mediratta PK},
  title = {Cognitive Impairment and Neurogenotoxic Effects in Rats Exposed to Low-Intensity Microwave Radiation},
  year = {2015},
  doi = {10.1177/1091581815574348},
  url = {https://journals.sagepub.com/doi/full/10.1177/1091581815574348},
}
DOI: 10.1177/1091581815574348

Cited By (55 papers)

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Quick Questions About This Study

Rats were exposed at 3 different frequencies, namely, 900, 1800 MHz, and 2450 MHz.
DNA damage was assessed using an alkaline comet assay in all groups.
Exposed animals showed declined cognitive function.
The results indicated that chronic low-intensity microwave exposure in the frequency range of 900 to 2450 MHz may cause hazardous effects on the brain.
Rats were exposed to microwave radiation for 180 days.