Homogeneous static magnetic field of different orientation induces biological changes in subacutely exposed mice
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It has been shown that static magnetic field (SMF) of moderate intensity produces considerable impact on biological systems. SMF can be homogeneous or inhomogeneous. In many studies, inhomogeneous SMF was employed. Aware that inhomogeneous SMF could result in experimental variability, we investigated the influence of a vertical homogeneous SMF of different orientation. Male Swiss-Webster 9- to 10-week-old mice were subacutely exposed to upward- and downward-oriented SMF of 128 mT generated by a cyclotron for 1 h/day during a 5-day period. We found that SMF affected various organs and that these effects were, to some degree, dependent on SMF orientation. Both upward- and downward-oriented SMF caused a reduction in the amount of total white blood cells (WBC) and lymphocytes in serum, a decrease of granulocytes in the spleen, kidney inflammation, and an increase in the amount of high-density lipoprotein (HDL). In addition, upward-oriented SMF caused brain edema and increased spleen cellularity. In contrast, downward-oriented SMF induced liver inflammation and a decrease in the amount of serum granulocytes. These effects might represent a specific redistribution of pro-inflammatory cells in blood and among various organs. It appears that homogeneous SMF of 128 mT affected specific organs in the body, rather than simultaneously and equally influencing the entire body system.
KeywordsHomogeneous static magnetic field of different orientation Liver Brain Kidney Spleen Serum
This study was supported by the grant numbers III-41013, III-41019, III41030, III-45003, and III-45006 from the Ministry of Education, Science and Technological Development, Government of Serbia. The experiment was performed at the Vinča Institute of Nuclear Sciences, Laboratory of Physics (010) to whose staff we thank for enabling access to the Cyclotron, as well as for their assistance and support.
Conflict of interest
The authors declare that they have no competing interests.
Role of funding source
No funding body had any involvement in the preparation or content of this article or in the decision to submit it for publication.
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