Ascorbic acid may protect against human gastric cancer by scavenging mucosal oxygen radicals.

@article{Drake1996AscorbicAM,
  title={Ascorbic acid may protect against human gastric cancer by scavenging mucosal oxygen radicals.},
  author={Ian M Drake and Michael J Davies and Nic P Mapstone and Michael F. Dixon and Chris J Schorah and Kay White and Douglas M Chalmers and Anthony T. R. Axon},
  journal={Carcinogenesis},
  year={1996},
  volume={17 3},
  pages={559-62}
}
High dietary ascorbic acid intake appears to protect against gastric cancer. This may be due to its action as a scavenger of reactive radical species formed in the gastric mucosa, resulting in a reduced level of radical-mediated DNA damage. We have studied 82 patients, of whom 37 had Helicobacter pylori-associated gastritis, a condition which predisposes to gastric cancer. Using electron paramagnetic resonance (EPR) spectroscopy we have demonstrated, for the first time, that ascorbyl radicals… CONTINUE READING
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