Summary
An elevated sister chromatid exchange (SCE) rate was found in the lymphocytes of six patients treated with arsenic. All had stigmata of arsenic use as well as biopsy-proven skin cancers. The arsenic exposed patients had a mean of 14.00 SCE/mitosis while 44 normal controls had a mean of 5.8 SCE/mitosis. Chromosome breakage analysis revealed no difference between the two groups.
SCE rate has been shown to be elevated in a variety of systems where cell cultures or experimental animals were exposed to known mutagens and carcinogens. We suggest that the relationship carcinogen exposure-elevated SCE rate-cancer may also be valid in humans treated with arsenic.
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This paper is supported in part by USPHS Grants No. T01 AM 05 560 (WB) and 5T01 GM 01 156 (KK).
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Burgdorf, W., Kurvink, K. & Cervenka, J. Elevated sister chromatid exchange rate in lymphocytes of subjects treated with arsenic. Hum Genet 36, 69–72 (1977). https://doi.org/10.1007/BF00390438
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DOI: https://doi.org/10.1007/BF00390438