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Adaptive Response Induced by Pre-Exposure to 915 MHz Radiofrequency: A Possible Role for Antioxidant Enzyme Activity.

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Mortazavi SMJ, Mostafavi-Pour Z, Daneshmand M, Zal F, Zare R, Mosleh-Shirazi MA. · 2017

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Pre-exposure to 915 MHz radiofrequency radiation induced adaptive response in liver by increasing glutathione levels and glutathione reductase activity, which protected tissue from oxidative damage caused by gamma radiation.

Plain English Summary

Summary written for general audiences

Researchers divided 50 rats into five groups and pre-exposed three groups to 915 MHz radiofrequency radiation for 4 hours daily over one week at low, medium, and high power. Twenty-four hours after the last exposure, the rats were given a 4 Gy sublethal gamma radiation dose and sacrificed after 5 hours. Pre-exposure increased glutathione levels and glutathione reductase activity in liver, with glutathione increases only in the low power group and glutathione reductase activity increases in both low and medium power groups. The elevated antioxidant levels protected liver tissue from oxidative damage induced by the gamma radiation.

Why This Matters

The study aimed to determine if radiofrequency radiation could induce an adaptive response by altering antioxidant balance. Researchers measured glutathione levels and glutathione reductase activity in liver tissue to evaluate this adaptive response. The results indicated that pre-exposure to 915 MHz radiation at specific powers could induce adaptive response in liver by changing antioxidant enzyme activity and levels.

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

Specific exposure levels were not quantified in this study. The study examined exposure from: 915 MHz Duration: 4 hours per day for one week at different powers, as low, medium and high

Study Details

This study aimed to assess whether radiofrequency radiation can induce adaptive response by changing the antioxidant balance

In order to assess RF-induced adaptive response in tissues, we evaluated the level of GSH and the ac...

Our finding showed that pre-exposure to 915 MHz radiofrequency radiation with specific power could i...

It can be concluded that pre-exposure to microwave radiation could increase the level of GSH and the activity of GR enzyme, although these increases were seen just in low power group, and the GR activity was indicated in medium power group. This increase protects tissue from oxidative damage induced by sublethal dose of gamma radiation.

Cite This Study
Mortazavi SMJ, Mostafavi-Pour Z, Daneshmand M, Zal F, Zare R, Mosleh-Shirazi MA. (2017). Adaptive Response Induced by Pre-Exposure to 915 MHz Radiofrequency: A Possible Role for Antioxidant Enzyme Activity. J Biomed Phys Eng. 7(2):137-142, 2017.
Show BibTeX
@article{smj_2017_adaptive_response_induced_by_1676,
  author = {Mortazavi SMJ and Mostafavi-Pour Z and Daneshmand M and Zal F and Zare R and Mosleh-Shirazi MA.},
  title = {Adaptive Response Induced by Pre-Exposure to 915 MHz Radiofrequency: A Possible Role for Antioxidant Enzyme Activity.},
  year = {2017},
  
  url = {https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5447250/},
}

Quick Questions About This Study

The study aimed to assess whether radiofrequency radiation can induce adaptive response by changing the antioxidant balance.
Twenty-four hours after the last exposure, rats were given a 4 Gy sublethal dose of gamma radiation and sacrificed after 5 hours.
Pre-exposure increased glutathione levels and glutathione reductase activity in liver, with glutathione increases only in the low power group and glutathione reductase activity increases in both low and medium power groups.
The increase in glutathione and glutathione reductase activity protected liver tissue from oxidative damage induced by the sublethal gamma radiation dose.