Modulation of Zebrafish Heart Rate by Alternating Magnetic Fields with Frequencies Close to Heart Rhythm

Authors: Krylov VV, Sizov DA, Machikhin AS, Guryleva AV, Tchougounov V, Burlakov AB

Year: 2024

Category: Biophysics

Journal: IEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology

Institution: IEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology

DOI: 10.1109/JERM.2024.3397557

URL: https://ieeexplore.ieee.org/document/10529610

Abstract

Overview

Extremely low-frequency magnetic fields (ELF-MF) up to 100 μT have notable effects on physiological processes, notably zebrafish heart function. The study explores how these fields influence heart rates in zebrafish embryos.

Findings

  • Frequency-matched ELF-MF related closely to natural heart rates were used to test effects on heart rate variability.
  • Embro heart rates, depending on age, ranged from 1.44 to 3 Hz.
  • Exposure to ELF-MF induced an increased heart rate, with early ontogenesis showing the most significant changes.
  • Negative correlation found between heart rate increases and ELF-MF frequencies at specific amplitudes.

Conclusion

The study suggests a disruption in cardiac rhythm due to ELF-MF, with probable molecular mechanisms related to the magnetic effect on radical pairs within biochemical oscillating processes.

zebrafish heart rate magnetic fields ELF-MF physiological processes
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