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Effects of Exposure to 50 Hz Magnetic Field on Hematologic and Immunologic Functions
Last modified on:
Thursday, November 06, 2008 11:39:45
Copyright © 1994-2008, Information Ventures, Inc.
The authors examined the effects of acute exposure to a 50-Hz magnetic field on circadian rhythmicity in human hematological and immune functions in healthy young men. The exposure group was exposed to a continuous 50-Hz, 10-mT (100-mG) magnetic field from 11:00 PM to 8:00 AM during one night or to an intermittent 50-Hz, 10-mT linearly-polarized field during the same period on a second night. The schedule for the intermittent magnetic field was 1 hour "off" and 1 hour "on" during which the field was switched on and off every 15 sec. A second group was sham-exposed. Blood samples were collected throughout the day and night and were analyzed for: changes in hemoglobin; hematocrits; differential red blood cell, platelet, total leukocyte, monocyte, lymphocyte, eosinophil, and neutrophil counts; and, changes in lymphocyte subpopulation counts, such as CD3, CD4, CD8, natural killer, and B-cells. Neither the continuous nor the intermittent magnetic field exposure significantly altered the hematological variables or the lymphocyte subpopulation cell counts. The authors concluded that acute exposure to a continuous or intermittent 10-mT 50-Hz magnetic field does not alter the circadian profiles of hematological and immunologic functions in healthy young males. [BENER 15078]
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