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Some biochemical properties of melatonin and the characterization of a relevant metabolite arising from its interaction with H2O2

  1. Paolo Carampin1,
  2. Stefania Rosan1,
  3. Daniele Dalzoppo2,
  4. Giuseppe Zagotto2,
  5. Paolo Zatta2

Article first published online: 31 JAN 2003

DOI: 10.1034/j.1600-079X.2003.00020.x

Issue

Journal of Pineal Research

Journal of Pineal Research

Volume 34, Issue 2, pages 134–142, March 2003

Additional Information

How to Cite

Carampin, P., Rosan, S., Dalzoppo, D., Zagotto, G. and Zatta, P. (2003), Some biochemical properties of melatonin and the characterization of a relevant metabolite arising from its interaction with H2O2. Journal of Pineal Research, 34: 134–142. doi: 10.1034/j.1600-079X.2003.00020.x

Author Information

  1. 1

    Department of Pharmacological Sciences, University of Padova, Padova, Italy and

  2. 2

    CNR-Institute of Biomedical Technologies, Padova ‘Metalloproteins’ Unit, Department of Biology, University of Padova, Italy

*Address reprint requests to Paolo Zatta, CNR-Institute of Biomedical Technologies, Padova ‘Metalloproteins’ Unit, Department of Biology, University of Padova, Viale G. Colombo, 3, 35121 Padova, Italy. E-mail: zatta@mail.bio.unipd.it

Publication History

  1. Issue published online: 31 JAN 2003
  2. Article first published online: 31 JAN 2003
  3. Received May 3, 2002; accepted October 7, 2002.

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Keywords:

  • Alzheimer's disease;
  • melatonin;
  • metal ions;
  • oxidative stress

Abstract: Melatonin is an efficient protector against hydrogen peroxide(H2O2)-induced lipid peroxidation and acts in a concentration-dependent manner. Hydrogen peroxide is rather a water stable molecule which is able to cross the cell membrane much better than some important free radicals such as superoxide anion, and consequently its local production can lead to significant spread by diffusion. In this paper we report data regarding some biochemical properties of melatonin as well as the chemical characterization of the major product formed from the interaction between melatonin and H2O2 (N1-acetyl-N2-formyl-5-methoxykynuramine) that are consistent with previous data reported by other authors. The effect of melatonin on catalase, glutathione peroxidase and superoxide dismutase in in vitro and in vivo experiments is also reported.

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