Abstract

Overview

This study revisits the impact of extremely low frequency (ELF) magnetic fields (MF) on umbilical cord blood lymphocytes (UCBL), extending previous investigations into magnetic field amplitude effects.

Findings

• UCBLs were exposed to various MF amplitudes ranging from 3 µT to 12 µT for 72 hours.
• The exposure was conducted using a triangular signal at 7.8 Hz with alternating cycles of 250 seconds on and 250 seconds off.
• Results from flow cytometry showed no significant change in early apoptotic, late apoptotic/necrotic cells, or reactive oxygen species production. However, a decrease in viable cell percentages was observed at 6.5 µT and 12 µT.

Conclusion

The study deduces an amplitude window of 6 µT to 13 µT, within which ELF-MF can decrease the viability of cells, indicating sensitivity to specific MF amplitudes.