Effect of a 60Hz electromagnetic field on the frequency of bleomycin-induced HPRT gene mutation and 1,2,4-benzenetriol-induced sister chromatid exchanges in CHO cell

  • Chung, Hai-Won (School of Public Health, Seoul National University) ;
  • Kang, Su-Jin (School of Public Health, Seoul National University) ;
  • Lee, Young-Joon (School of Public Health, Seoul National University) ;
  • Kim, Su-Young (School of Public Health, Seoul National University)
  • Published : 2002.06.30

Abstract

The interaction of low density extremely low frequency magnetic field (ELF MF) in the frequency of hypoxanthine-guanine phosphoribosyltransferase (HPRT) mutation induced by bleomycin and on the frequency of sister chromatid exchanges (SCEs) induced by 1,2,4-benzenetriol(BT) was demonstrated. CHO cells pretreated with bleomycin or 1,2,4-benzenetriol were exposed for 24hrs to a sinusoidal 0.8mT magnetic field at 60Hz. Frequency of HPRT mutation and SCEs were determined. ELF MF exposure led to a two-fold increase of the frequency of HPRT mutation induced by bleomycin. No increase of mutation frequency was observed by ELF MF alone ELF MF also increased the frequency of SCEs induced by BT while no Increase of SCE frequencies were observed by ELF MF alone. These results suggest that low density ELF MF field would art as an enhancer rather than as an initiator of mutagenic effects in CHO cell.

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