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Related Experiment Video

Updated: Jan 24, 2026

How to Administer Near-Infrared Spectroscopy in Critically ill Neonates, Infants, and Children
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Melatonin in Critically Ill Children.

Jennifer Ruth Foster1,2,3,4

  • 1Department of Paediatrics, IWK Health Centre, Dalhousie University, Halifax, Nova Scotia, Canada.

Journal of Pediatric Intensive Care
|May 22, 2019
PubMed
Summary

Melatonin, a hormone regulating sleep-wake cycles, shows potential benefits in critical illness. Research is exploring its use for pediatric patients, particularly for managing oxidant stress and circadian rhythm disturbances.

Keywords:
antioxidantscircadian rhythmcritical careintensive care unitsmelatoninpediatricpineal gland

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Area of Science:

  • Endocrinology
  • Pediatric Critical Care
  • Chronobiology

Background:

  • Melatonin is known for chronobiologic functions and possesses antioxidant, anti-inflammatory, and antiapoptotic properties.
  • Its potential relevance in critical illness extends beyond circadian rhythm maintenance to analgesia and sedation.
  • Understanding endogenous melatonin in pediatric critical illness is limited, with scarce literature available.

Purpose of the Study:

  • To review melatonin physiology in healthy individuals.
  • To examine the current knowledge of endogenous melatonin production in pediatric critical illness.
  • To explore potential applications of exogenous melatonin in critically ill children.

Main Methods:

  • Review of existing scientific literature on melatonin physiology.
  • Analysis of studies concerning endogenous melatonin in pediatric critical illness.
  • Inclusion of basic science findings and data from other medical fields.

Main Results:

  • Pineal melatonin production and secretion appear altered in critical illness.
  • Knowledge regarding pediatric critical illness is nascent, with only 102 children documented.
  • Exogenous melatonin shows promise for circadian rhythm disturbances and conditions involving oxidant stress.

Conclusions:

  • Melatonin's multifaceted effects suggest potential therapeutic roles in critical care.
  • Further research is needed to elucidate endogenous melatonin's role in pediatric critical illness.
  • Clinical studies on exogenous melatonin in critically ill children beyond neonates are absent.