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Melatonin: A Versatile Protector against Oxidative DNA Damage.

Annia Galano1, Dun-Xian Tan2, Russel J Reiter3

  • 1Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, Iztapalapa, C. P. 09340, Mexico D. F. Mexico. agalano@prodigy.net.mx.

Molecules (Basel, Switzerland)
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Summary
This summary is machine-generated.

Melatonin protects DNA from oxidative damage through direct and indirect mechanisms. This versatile molecule offers comprehensive protection against various DNA-damaging agents, crucial for preventing disease.

Keywords:
antioxidant activityantioxidative mechanismsantioxidative protectionfree radical scavengermetal chelation

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Genetics

Background:

  • Oxidative damage to DNA is a significant factor in disease development.
  • Preventing DNA oxidative damage is vital for human and organismal health.

Purpose of the Study:

  • To explore the protective mechanisms of melatonin against oxidative DNA damage.
  • To highlight melatonin's multifaceted role in DNA protection.

Main Methods:

  • Review of existing literature on melatonin's antioxidant and protective functions.
  • Analysis of melatonin's direct and indirect pathways of action against DNA damage.

Main Results:

  • Melatonin provides direct protection via free radical scavenging.
  • Indirect protection includes inhibiting metal-induced damage, protecting against non-radical triggers, and boosting DNA repair.
  • Melatonin activates antioxidant enzymes and inhibits pro-oxidative enzymes.

Conclusions:

  • Melatonin's unique ability to neutralize diverse threats makes it highly effective in preventing oxidative DNA damage.
  • Its low toxicity and ability to cross biological barriers enhance its protective efficiency.
  • Melatonin is a promising agent for mitigating diseases linked to DNA oxidative stress.