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Oxidative Stress

Influence of low frequency magnetic field on chosen parameters of oxidative stress in rat's muscles.

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Ciejka E, Skibska B, Kleniewska P, Goraca A. · 2010

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Exposure to a low-frequency magnetic field at 40 Hz and 7 mT caused a significant increase in sulfhydryl group concentration and a decrease in protein concentration in rat muscle homogenates.

Plain English Summary

Summary written for general audiences

Researchers studied the influence of a low-frequency magnetic field on oxidative stress markers in rat muscles. Thirty male rats weighing 280 to 300 grams were randomly divided into three experimental groups, each containing seven animals. One treatment group was exposed to 40 Hz and 7 mT for 0.5 hours per day for 14 days, and the other was exposed at the same settings for 1 hour per day for 14 days. Exposure caused a significant increase in sulfhydryl group concentration and a decrease in protein concentration in the muscle homogenates.

Why This Matters

The effects of exposure on oxidative states were assessed by measuring the concentration of sulfhydryl groups, hydrogen peroxide, and proteins in muscle homogenates. Muscle samples were taken immediately after the last exposure session while the rats were under pentobarbital anaesthesia. Control rats were kept in a separate room without exposure to the magnetic field. The researchers concluded that a low magnetic field used in magnetotherapy causes significant changes in the generation of reactive oxygen forms in muscles, and that these changes depend on the parameters of the low magnetic field.

Exposure Details

Magnetic Field
7 mT
Source/Device
40 Hz
Exposure Duration
0.5 h/day for 14 days(1st group) & 1 h/day for 14 days(2nd group)

Exposure Context

This study used 7 mT for magnetic fields:

Building Biology guidelines are practitioner-based limits from real-world assessments. BioInitiative Report recommendations are based on peer-reviewed science. Check Your Exposure to compare your own measurements.

Where This Falls on the Concern Scale

Study Exposure Level in ContextStudy Exposure Level in ContextThis study: 7 mTExtreme Concern - 5 mGFCC Limit - 2,000 mGEffects observed in the Extreme Concern range (Building Biology)This level is 35 times the FCC limit
A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 40 Hz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 40 HzCell phones~1 GHzWiFi2.4 GHz5G mm28 GHzLogarithmic scale

Study Details

The aim of this study was to evaluate the influence of low magnetic field on the parameters of oxidative stress in rat's muscles

Thirty male rats, weight of 280-300 g were randomly divided into three experimental groups: control ...

Exposure to ELFMF: 40 Hz, 7 mT, 30 and 60 min/day used for 2 weeks caused significant increase in -S...

Low magnetic field used in magnetotherapy causes the significant changes of the generating the reactive forms of oxygen in the muscles which depend on the parameters of low magnetic field.

Cite This Study
Ciejka E, Skibska B, Kleniewska P, Goraca A. (2010). Influence of low frequency magnetic field on chosen parameters of oxidative stress in rat's muscles. Pol Merkur Lekarski. 29(174):361-364, 2010.
Show BibTeX
@article{e_2010_influence_of_low_frequency_336,
  author = {Ciejka E and Skibska B and Kleniewska P and Goraca A.},
  title = {Influence of low frequency magnetic field on chosen parameters of oxidative stress in rat's muscles.},
  year = {2010},
  
  url = {https://europepmc.org/article/med/21298985},
}
PubMed: 21298985

Cited By (2 papers)

Quick Questions About This Study

Thirty male rats weighing 280 to 300 grams were randomly divided into three experimental groups, each containing seven animals.
One group was exposed to 40 Hz and 7 mT for 0.5 hours per day for 14 days, and the other group was exposed to the same frequency and intensity for 1 hour per day for 14 days.
Researchers measured the concentration of sulfhydryl groups, hydrogen peroxide, and proteins in muscle homogenates.
Exposure at 40 Hz and 7 mT for 30 and 60 minutes per day over two weeks caused a significant increase in sulfhydryl group concentration and a decrease in protein concentration in the muscle homogenates.
The researchers found that changes in reactive oxygen forms in muscles depended on the parameters of the low magnetic field.