Abstract
In this work we have studied some hematological and biochemical parameters of peripheral blood, as well as some histological aspects of liver and spleen during chronic exposure (1, 6, and 8 months) to extremely low-frequency magnetic fields (ELF-MF). Balb/C mice were exposed to an experimental sinusoidal magnetic wavefield of 60 Hz with a 0.11-mT intensity, generated in a system of Helmholtz coils. The results have shown no ELF-MF–cancer relationship during our experimental exposure time. However, leukopenia, hemoglobin decrease, and liver and spleen weight increase were observed. The bioeffects described could be correlated with spleen hyperfunction, which could have been produced by chronic exposure to this ELF-MF.