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Effect of 60 Hz magnetic fields on social feeding behavior of npr-1 receptor mutants in Caenorhabditis elegans

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Kakikawa M, Kenmochi A, Yamada S · 2025

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Exposure to 60 Hz, 50 mT magnetic fields reduced social feeding aggregates by 40% and 25% in two npr-1 mutant strains of C. elegans.

Plain English Summary

Summary written for general audiences

The magnetic field reduced the number of feeding aggregates by 40% in the IM222 mutant and by 25% in the DA609 mutant. The same magnetic field did not affect the mutants' movement speed or attraction to the odorant diacetyl over 90 minutes.

Why This Matters

Wild-type C. elegans forage alone, but npr-1 mutants aggregate on food and display social feeding. The researchers concluded that magnetic fields can modify the altered NPR-1 function and that extracellular regions of the receptor may be more affected than transmembrane regions.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 60 Hz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 60 HzCell phones~1 GHzWiFi2.4 GHz5G mm28 GHzLogarithmic scale

Specific exposure levels were not quantified in this study.

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Cite This Study
Kakikawa M, Kenmochi A, Yamada S (2025). Effect of 60 Hz magnetic fields on social feeding behavior of npr-1 receptor mutants in Caenorhabditis elegans.
Show BibTeX
@article{kakikawa_m_kenmochi_a_yamada_s_ce4426,
  author = {Kakikawa M and Kenmochi A and Yamada S},
  title = {Effect of 60 Hz magnetic fields on social feeding behavior of npr-1 receptor mutants in Caenorhabditis elegans},
  year = {2025},
  doi = {10.1080/15368378.2025.2523773},
  
}
DOI: 10.1080/15368378.2025.2523773PubMed: 40569794

Quick Questions About This Study

The magnetic field reduced social feeding aggregates by 40% in the IM222 mutant and by 25% in the DA609 mutant.
The magnetic field did not affect the mutants' movement speed or their ability to reach the attractant diacetyl over 90 minutes.
They concluded that magnetic fields can alter the function of the mutated NPR-1 receptor and that extracellular parts of the protein may be more affected than transmembrane parts.
The study used a 60 Hz, 50 mT magnetic field.
Wild-type C. elegans forage alone on a bacterial lawn, while npr-1 mutants aggregate on food and show social feeding behavior.