Abstract
MICROBIAL1, mammalian2,3 and human4,5 bioassays are being applied to uncover the mutagenic action of synthetic compounds which have been introduced accidently or intentionally into the environment. Somewhat less attention has been given to the potential genetic hazard of chemicals which are an essential part of human nutrition or are formed within mammalian tissues and organs. Ascorbic acid belongs to this group of “neglected” naturally occurring compounds, although its capacity to form radicals and its interaction with viral6 and bacterial7 DNA should have raised suspicion about its possible mutagenic capacity. Considering the large daily intake of ascorbic acid, its addition to many food products8 and its potential use as an inhibitor of the intragastric formation of N-nitroso compounds8,9 and nitrosamine formation in food products10, its action on the genome of human cells requires investigation. We here present evidence, from several experimental systems, suggesting that vitamin C, particularly in the presence of copper, has a mutagenic effect.
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STICK, H., KARIM, J., KOROPATNICK, J. et al. Mutagaenic action of ascorbic acid. Nature 260, 722–724 (1976). https://doi.org/10.1038/260722a0
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DOI: https://doi.org/10.1038/260722a0
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