Effect of Short-time Exposure of Local Extremely Low-Frequency Magnetic Fields on Sleepiness in Male Rats

Authors: Azizi E, Ayoobi F, Shamsizadeh A, Moghadam-Ahmadi A, Shafiei S A, Khoshdel A et al

Year: 2022

Category: Neuroscience

Journal: BCN

Institution: BCN

URL: http://bcn.iums.ac.ir/article-1-1805-en.html

Abstract

Overview

This study explores the impact of local extremely low-frequency magnetic fields (ELF-MFs) on sleepiness and anxiety in male rats, emphasizing the health implications linked to electromagnetic field exposure.

Methods

  • 40 male rats were divided into four groups, each comprising 10 rats.
  • Exposure involved three different ELF-MF frequencies (0, 10, and 18 Hz) with an intensity of 200µT over three days, totaling 10 minutes per day.
  • Controls (sham-treated animals) did not receive ELF-MF exposure.
  • Key measurements: Serum oxalic acid, anxiety, and sleepiness tests (ELISA, elevated plus maze, open-field test).

Findings

  • An observed reduction in serum oxalate levels when exposed to 10 Hz ELF-MF (P<0.05).
  • Significant changes in the elevated plus maze test indicate potential for anxiety modulation.
  • Decreases in frequency, velocity, and distance moved in the open-field test reflect induced sleepiness.

Conclusion

The study demonstrates that short-time exposure to ELF-MF notably impacts metabolism of oxalic acid and ostensibly modulates anxiety behavior and induces sleepiness in male rats, reinforcing concerns about the safety standards related to electromagnetic field exposures.

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