Role of active oxygen species in metal-induced DNA strand breakage in human diploid fibroblasts.


The ability of 6 metal salts to induce DNA damage in human diploid fibroblasts was examined. Cadmium, magnesium, manganese, chromium(VI), zinc and selenite were all shown to induce DNA strand breaks as measured by two independent assays. DNA strand breaks were repaired within 2-4 h after removal of metal and this repair appeared not to be sensitive to "long… (More)


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