Abstract Title:

Effects of extremely low-frequency electromagnetic fields (ELF-EMF) exposure on B6C3F1 mice.

Abstract Source:

Environ Health Prev Med. 2015 Jul ;20(4):287-93. Epub 2015 May 5. PMID: 25939981

Abstract Author(s):

Guangying Qi, Xiaoxu Zuo, Lihua Zhou, Eriko Aoki, Aya Okamula, Mika Watanebe, Haipeng Wang, Qiuhui Wu, Huiling Lu, Handan Tuncel, Hiromitsu Watanabe, Sien Zeng, Fumio Shimamoto

Article Affiliation:

Guangying Qi

Abstract:

OBJECTIVE: Long-term exposure study was conducted to investigate the effects of extremely low-frequency electromagnetic field on the tumor promotion process and fertility.

METHODS: Ten pregnant C57BL/6NCrj mice were exposed to 50 Hz field 500 mG for 1 week (12 h per day), and 24 male and 42 female B6C3F1mice born from them were further exposed up to 15.5 months. As a control group, 10 pregnant mice were bred without exposure, and 30 produced male and 32 female mice were observed without exposure for the same period.

RESULTS: Mean body weights of exposed groups of male and female mice were decreased significantly than those of the control groups. In exposed mice, there was no increased incidence of liver and lung tumor. In female mice, the incidence of chronic myeloid leukemia [3/42 (7%)] in the exposed group was significantly greater than in the control group. The size of seminiferous tubules in the EMF exposed groups were significantly less than the control group.

CONCLUSIONS: These data support the hypothesis that long-term exposure of 50 Hz magnetic fields is a significant risk factor for neoplastic development and fertility in mice.

Study Type : Animal Study

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