A study of pyrimidine base damage in relation to oxidative stress and cancer

H. Iijima, H. B. Patrzyc, E. E. Budzinski, H. G. Freund, J. B. Dawidzik, K. J. Rodabaugh, H. C. Box

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


Background: A long-standing hypothesis is that oxidative stress is a risk factor for cancer. Support for this hypothesis comes from observations of higher levels of oxidative damage in the DNA of WBC of cancer patients compared with healthy controls. Methods: Two generally overlooked types of DNA damage, the formamide modification and the thymine glycol modification, both derived from pyrimidine bases, were assayed as markers of oxidative stress. Damage levels were measured in the DNA of WBC of ovarian cancer patients and of healthy controls.Results: The levels of both modifications were higher in ovarian cancer patients than in healthy controls although in the case of the formamide modification age could not be ruled out as a factor. Conclusion: Our results in combination with other published measurements of oxidative DNA damage support the hypothesis that oxidative damage, on average, is higher in WBC of cancer patients than in healthy controls.

Original languageEnglish (US)
Pages (from-to)452-456
Number of pages5
JournalBritish journal of cancer
Issue number3
StatePublished - Aug 4 2009


  • DNA damage
  • Ovarian cancer
  • Oxidative stress
  • Pyrimidine base damage

ASJC Scopus subject areas

  • Oncology
  • Cancer Research


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