The present study is aimed to test whether exposure to electromagnetic fields of very weak intensity (≤1 mT) and low frequency (≤100 Hz) may influence reproductive performance and induce teratogenesis in mice. We sp...The present study is aimed to test whether exposure to electromagnetic fields of very weak intensity (≤1 mT) and low frequency (≤100 Hz) may influence reproductive performance and induce teratogenesis in mice. We speculate that a resonant effect occur when the applied frequency matches the cyclotron frequency of Mg<sup>2+</sup> (≈60 Hz) involved in the cell duplication. Four groups of mice (four dams and one male each) were exposed to ?50 μT electromagnetic field continuous irradiation of for 100 days. A control group (four dams and one male) was also examined. The exposed dams exhibited a significantly lower number of offspring per birth than the control ones (11.0 vs. 11.6;P = 0.006). A significantly lower average daily gain of body weight per mouse was observed (0.74 vs. 0.77 g/d;P = 0.002), resulting in a reduction of the average body weight per nest at 11 days of age (404 vs. 463 g;P = 0.048). Post mortem examinations revealed a significant increase in mild chronic hepatic inflammatory findings (28 vs. 0%;P = 0.001) in the offspring and myocardial hypertrophy (25 vs. 0%;P = 0.023) in the dams. The exposure of mice to an electromagnetic field with the cyclotron frequency of Mg2+ during pregnancy caused a measurable effect on the reproductive performance in terms of offspring per birth. This finding may be considered as a warning about the environmental effects of the electromagnetic fields on the stability of individual species and ecosystems.展开更多
文摘The present study is aimed to test whether exposure to electromagnetic fields of very weak intensity (≤1 mT) and low frequency (≤100 Hz) may influence reproductive performance and induce teratogenesis in mice. We speculate that a resonant effect occur when the applied frequency matches the cyclotron frequency of Mg<sup>2+</sup> (≈60 Hz) involved in the cell duplication. Four groups of mice (four dams and one male each) were exposed to ?50 μT electromagnetic field continuous irradiation of for 100 days. A control group (four dams and one male) was also examined. The exposed dams exhibited a significantly lower number of offspring per birth than the control ones (11.0 vs. 11.6;P = 0.006). A significantly lower average daily gain of body weight per mouse was observed (0.74 vs. 0.77 g/d;P = 0.002), resulting in a reduction of the average body weight per nest at 11 days of age (404 vs. 463 g;P = 0.048). Post mortem examinations revealed a significant increase in mild chronic hepatic inflammatory findings (28 vs. 0%;P = 0.001) in the offspring and myocardial hypertrophy (25 vs. 0%;P = 0.023) in the dams. The exposure of mice to an electromagnetic field with the cyclotron frequency of Mg2+ during pregnancy caused a measurable effect on the reproductive performance in terms of offspring per birth. This finding may be considered as a warning about the environmental effects of the electromagnetic fields on the stability of individual species and ecosystems.
