Variations of Proliferation States of Cells Under Action of Electromagnetic Field of High-Voltage Transmission Lines

Proliferation states of chick embryo fibroblast cells in vitro under the action of electromagnetic field irradiating by high-voltage transmission line have been investigated by 3-(4,5-dimethylthiazold 2-yl)-2,5 diphenyltetrazolium bromide (MTT) technique. The chick embryo fibroblast (CEF) cells were divided into controlled and exposed groups, the experimental group is exposed in the electromagnetic field with 4000 V/m and 0.09-0.1 G irradiated by the high-voltage transmission of 220 KV about 400 days. The results obtained show that the proliferation of CEF was inhibited by this electromagnetic field, the ratio of proliferation of CEF descends with the increase of the time of irradiation, the number of the CEF cell decreases for the exposed group when compared with that of the controlled group. This shows that the electromagnetic field of the high -voltage transmission line can suppress the proliferation of CEF in vitro.