Carcinogenicity of intermediate frequency magnetic field in mice

Authors: Nishimura I, Doi Y, Imai N, Kawabe M, Mera Y, Shiina T

Year: 2019 Mar 15

Category: Bioelectromagnetics

Journal: Bioelectromagnetics

DOI: 10.1002/bem.22177

URL: https://www.ncbi.nlm.nih.gov/pubmed/30875092

Abstract

Overview

The study focuses on the health impacts of intermediate frequency magnetic fields (MFs), commonly emitted by devices like induction-heating cookers and wireless power transfer systems. Despite increased exposure from these devices, comprehensive biological data on potential health risks are lacking.

Findings

  • Exposure investigated: 0.20 mT, 20 kHz MF, 22 hours/day for 26 weeks.
  • Subjects: 25 male and female CByB6F1-Tg(HRAS)2Jic mice, with a control group receiving N-methyl-N-nitrosourea as a carcinogen.
  • Assessment method: Blinded histopathological evaluation, with duplicated experiments for consistency.
  • Main result: No significant increase in neoplastic lesions in MF-exposed groups compared to sham-exposed groups.

Conclusion

The research indicates a lack of carcinogenicity of 20 kHz MF in the rasH2 mouse model. This suggests that, at these exposure levels, there may not be a direct link to increased cancer risk, highlighting the need for further studies in this area.

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