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The effects of exposure of rats to a pulsed 2.45 GHz electromagnetic field on the structure and ultrastructure of the liver should be investigated.
40 rats were divided into 2 groups (n=20 each): 1) control group and 2) exposure to the electromagnetic field. All animals were anesthetized and examined 3 hours after the last exposure session.
ばく露時間: continuous for 3 h/day for 3 weeks
|ばく露時間||continuous for 3 h/day for 3 weeks|
Microscopy showed a slightly increased blood flow, dilatation of liver sinusoids and small inflammatory foci in the centers of liver lobules in the exposure group compared to the control group. The morphology of hepatocytes was not altered and all observed changes were classified as moderate.
Electron microscopy of hepatocytes revealed more vesicles, lipid droplets and growth of the smooth endoplasmic reticulum in cells of the exposure group compared to the control group. Occasionally, necrotic cells were found in the exposure group but not in the control group.
The authors conclude that exposure of rats to a pulsed 2.45 GHz electromagnetic field could have adverse effects on the liver.