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