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Related Experiment Videos

5-hydroxytryptophol as a marker for recent alcohol intake.

Olof Beck1, Anders Helander

  • 1Department of Medicine, Division of Clinical Pharmacology, Karolinska Hospital, Stockholm, Sweden. olof.beck@ks.se

Addiction (Abingdon, England)
|February 27, 2004
PubMed
Summary

Urinary 5-hydroxytryptophol (5-HTOL) is a reliable biochemical marker for recent alcohol consumption. Elevated 5-HTOL levels indicate alcohol intake and have clinical and forensic applications.

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Area of Science:

  • Biochemistry
  • Metabolism
  • Biomarkers

Background:

  • 5-hydroxytryptophol (5-HTOL) is a minor serotonin metabolite in urine.
  • Alcohol intake significantly increases 5-HTOL formation due to metabolic interactions.
  • Elevated urinary 5-HTOL persists for hours after ethanol elimination, enabling detection of recent alcohol consumption.

Purpose of the Study:

  • To review the mechanism of alcohol-induced serotonin metabolism shifts.
  • To evaluate urinary 5-HTOL as a biochemical marker for acute alcohol intake.

Main Methods:

  • Gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-mass spectrometry (LC-MS) are used for 5-HTOL determination.
  • A new ELISA method for 5-HTOL glucuronide offers a promising clinical assay.

Related Experiment Videos

  • Measuring the 5-HTOL to 5-hydroxyindoleacetic acid ratio corrects for urine dilution and dietary factors.

    • Main Results:

    • 5-HTOL is a sensitive and specific indicator of recent alcohol consumption.
    • It serves as a valuable complement to self-reported alcohol intake.
    • Clinical applications include monitoring treatment, detecting high-risk patients, and forensic toxicology.

    Conclusions:

    • Elevated urinary 5-HTOL is a sensitive and reliable marker for recent alcohol intake.
    • The marker has diverse clinical and forensic applications.
    • 5-HTOL aids in validating self-report data in alcohol research.