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Measuring melatonin in humans.

Susan Benloucif1, Helen J Burgess, Elizabeth B Klerman

  • 1Department of Neurology, Northwestern University Medical School, Chicago, IL, USA. sbenloucif@gmail.com

Journal of Clinical Sleep Medicine : JCSM : Official Publication of the American Academy of Sleep Medicine
|March 21, 2008
PubMed
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This study offers guidelines for measuring melatonin in urine, saliva, and plasma to help researchers compare data. It recommends standardized methods for consistent results across studies.

Area of Science:

  • Biochemistry
  • Chronobiology
  • Clinical Research

Background:

  • Melatonin is a crucial hormone regulating circadian rhythms.
  • Standardized methods for melatonin measurement are lacking, hindering data comparability.

Purpose of the Study:

  • To establish guidelines for collecting and analyzing melatonin in urinary, salivary, and plasma samples.
  • To aid clinicians and researchers in selecting appropriate melatonin measurement techniques.
  • To facilitate inter-laboratory comparison of melatonin data.

Main Methods:

  • A modified RAND process was employed to develop consensus-based recommendations.
  • Guidelines cover sample collection and analysis in various settings (natural, clinical, controlled).

Related Experiment Videos

Main Results:

  • Consensus-based guidelines for melatonin measurement are presented.
  • Recommendations address different study environments and conditions.

Conclusions:

  • Current melatonin analysis methods have limitations, preventing a single universal approach.
  • Standardized reporting of low threshold measures of dim light melatonin onset is recommended for comparability.