Effects Of 50Hz Magnetic Field On Membrane Surface Receptors And The Inhibition Of Noise Magnetic Field

The widerspread application of electric equipment and wiring in industry, agriculture, office and family, accompanied by the rapidly development of high-voltage transmission technology, human beings are commonly exposed to the extremely low frequency electromagnetic fields (ELF EMFs). Since an epidemiological study first suggested a possible relationship between residential high-voltage power lines and childhood leukemia, evidence is accumulating that extremely low frequency magnetic fields had harmful biological effects especially on the incidence of nervous system and lymphomas. ELF EMFs has been classified as a "possible human carcinogen" by International Agency for Research on Cancer (IARC). The occupational exposure limit for ELF EMFs is 0.5 mT adopting ICNIRP guidelines, recommended by World Health Organization (WHO). However, the question of rational exposure standards should be solved since many reports showing that lower ELF EMFs exposure also have adverse effects.The mechanism of the biological effects of ELF EMFs is still unclear. ELF EMFs in our environment often have little energy to directly traverse the membrane, and act with biological molecules, or damage the DNA. Reports suggested that cell signal transduction pathways could participate in biological effects of electromagnetic field (EMF), but it is not clear how EMF activates those pathways. It is possible that they may modify the existing signal transduction procession in cell membrane, thus producing both transduction and biochemical amplification of the effects...