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Brain & Nervous System

The effects of exposure to 915 MHz radiofrequency identification on cerebral glucose metabolism in rat: A [F-18] FDG micro-PET study.

No Effects Found

Kim HS, An YS, Paik MJ, Lee YS, Choi HD, Kim BC, Pack JK, Kim N, Ahn YH. · 2013

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High-level RFID radiation at 4 W/kg SAR showed no impact on brain glucose metabolism in rats after 16 weeks of exposure.

Plain English Summary

Summary written for general audiences

Researchers exposed rats to 915 MHz RFID radiation for up to 16 weeks at high intensity levels (4 W/kg SAR) and measured brain glucose metabolism using advanced PET scanning. They found no changes in how the brain processed glucose in any region examined, suggesting this type of radiofrequency exposure didn't alter basic brain energy function. This matters because brain glucose metabolism is a fundamental indicator of neural activity and health.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 915 MHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 915 MHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

The study examined exposure from: 915-MHz Duration: 8 h daily, 5 days per week, for 2 or 16 weeks.

Study Details

We investigated the effect of whole-body exposure to 915-MHz radiofrequency identification (RFID) on rat cortical glucose metabolism by using (18)F-deoxyglucose positron emission tomography (FDG-PET).

Male Sprague-Dawley rats were divided into three groups: Cage-control, sham-exposed and RFID-exposed...

The data showed that the relative cerebral glucose metabolic rate was unchanged in the frontal, temp...

Our results suggest that 915 MHz RFID radiation exposure did not cause a significant long lasting effect on glucose metabolism in the rat brain.

Cite This Study
Kim HS, An YS, Paik MJ, Lee YS, Choi HD, Kim BC, Pack JK, Kim N, Ahn YH. (2013). The effects of exposure to 915 MHz radiofrequency identification on cerebral glucose metabolism in rat: A [F-18] FDG micro-PET study. Int J Radiat Biol. 2013 May 7.
Show BibTeX
@article{hs_2013_the_effects_of_exposure_3138,
  author = {Kim HS and An YS and Paik MJ and Lee YS and Choi HD and Kim BC and Pack JK and Kim N and Ahn YH.},
  title = {The effects of exposure to 915 MHz radiofrequency identification on cerebral glucose metabolism in rat: A [F-18] FDG micro-PET study.},
  year = {2013},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/23581879/},
}
PubMed: 23581879

Cited By (10 papers)

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Quick Questions About This Study

No, a 2013 study found that 915 MHz RFID radiation at 4 W/kg SAR for 16 weeks did not change brain glucose metabolism in rats. PET scans showed no alterations in how brain cells processed glucose in any brain region examined.
Research shows 915 MHz RFID exposure doesn't impair brain energy function. Rats exposed to high-intensity RFID radiation for 16 weeks showed normal glucose metabolism rates in frontal, temporal, and parietal brain regions compared to unexposed controls.
A 16-week study using 915 MHz RFID radiation found no harmful effects on brain metabolism in rats. Even at high exposure levels (4 W/kg SAR), brain glucose processing remained unchanged across all measured brain regions.
The 2013 RFID brain study used 4 W/kg SAR exposure levels, which is significantly higher than typical human exposure. Despite this high intensity over 16 weeks, researchers found no changes in brain glucose metabolism using PET imaging.
Studies indicate 915 MHz RFID systems don't affect neural activity in brain cortex regions. PET scan analysis showed unchanged glucose metabolism in frontal, temporal, and parietal cortex areas after prolonged high-intensity RFID exposure in laboratory rats.