Antioxidant and prooxidant properties of caffeine, theobromine and xanthine.

@article{Azam2003AntioxidantAP,
  title={Antioxidant and prooxidant properties of caffeine, theobromine and xanthine.},
  author={Sonish Azam and Naghma Hadi and Nizam Uddin Khan and Sheikh Mumtaz Hadi},
  journal={Medical science monitor : international medical journal of experimental and clinical research},
  year={2003},
  volume={9 9},
  pages={
          BR325-30
        }
}
BACKGROUND Caffeine, along with its catabolic products theobromine and xanthine, is a key component of tea and coffee. These compounds are structurally similar to uric acid, a known antioxidant which is present in blood at relatively high concentrations, but also shows prooxidant activity. In view of the structural similarity between uric acid and caffeine and its metabolites, we studied the antioxidant and prooxidant properties of these compounds. MATERIAL/METHODS Antioxidant activity was… CONTINUE READING

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