Spontaneous and mitomycin-C-induced micronuclei in human lymphocytes exposed to extremely low frequency pulsed magnetic fields
- Istituto di Ricerca per l'Elettromagnetismo e i Componenti Elettronici Consiglio Nazionale delle Ricerche, Napoli (Italy)
The cytokinesis block micronucleus method, a very sensitive cytogenetic assay, was used to ascertain the possible genotoxic effects of extremely low frequency pulsed magnetic fields in phytohemagglutinin-stimulated human lymphocytes cultures from 16 healthy donors. Four conditions were studied: lymphocytes not exposed to the field (control cultures); lymphocytes exposed to the field; lymphocytes treated with mitomycin-C and not exposed to the field; and lymphocytes treated with mitomycin-C and exposed to the field. Mitomycin-C-treated cultures were used as control for the micronucleus method, because it is known that mitomycin-C is a potent genotoxic agent, capable of inducing micronuclei. The frequency of micronuclei in field-exposed cultures was similar to the spontaneous frequency observed in control unexposed-cultures. Moreover, the exposure to pulsed magnetic fields did not affect the frequency of micronuclei induced by mitomycin-C, suggesting that, in the experimental conditions used, this kind of field neither affected the integrity of chromosomes nor interfered with the genotoxic activity of mitomycin-C.
- OSTI ID:
- 5798878
- Journal Information:
- Biochemical and Biophysical Research Communications; (USA), Vol. 176:1; ISSN 0006-291X
- Country of Publication:
- United States
- Language:
- English
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