Effects of low-intensity electromagnetic fields of industrial frequency on the ultrastructure and proliferative activity of cells in the rat thymus

被引：0
|
作者：
Zhitkevich, T.I. [1 ]
Bokut', T.B. [1 ]
Netukova, N.I. [1 ]
机构：
[1] Inst. of Physiology, National Academy of Sciences, ul. Akademicheskaya 28, Minsk, 220072, Belarus
来源：
Radiatsionnaya Biologiya. Radioekologiya | 2001年 / 41卷 / 04期
关键词：
Animal cell culture - DNA - Electromagnetic waves - Enzyme kinetics - Immunology;
D O I：
暂无
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学科分类号：
摘要：
Effects of two types of low-intensity electromagnetic fields (EMF) of industrial frequency (50 Hz) on the fine structure and proliferative activity of thymic cells in while rats were studied. It was found that a weak EMF with a prevailing electrical component (380-480 V/m, 120-140 nT) did not affect the DNA synthesis intensity. An EMF with a stronger magnetic induction (10-15 V/m, 800-1500 nT) diminished the glucose-6-phosphate dehydrogenase activity and proliferative processes in cultured stimulated lymphocytes. Electron microscopic investigation of the thymus after both types of exposure revealed an accumulation of lymphocytes with pyknotic nuclei and electron-dense cytoplasm, as well as hypoplasia of the vascular endothelium. At the same time, EMF with a prevailing magnetic component produced a more marked negative effect on the ultrastructure of thymic cells, which indicated a lowered secretory activity of epitheliocytes.
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页码：403 / 407
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