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Increased urinary lipoperoxides in drug abusers.

J A Knight1, R K Pieper, S E Smith

  • 1Department of Pathology, University of Utah School of Medicine, Salt Lake City 84132.

Annals of Clinical and Laboratory Science
|September 1, 1988
PubMed
Summary
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Drug abuse can increase lipid peroxidation, indicated by elevated urine malondialdehyde (MDA). Marijuana, cocaine, opiates, benzodiazepines, and multiple drug use showed significant MDA increases, suggesting secondary lipid peroxidation following tissue injury.

Area of Science:

  • Toxicology
  • Biochemistry
  • Analytical Chemistry

Background:

  • Lipid peroxidation is a marker of oxidative stress and cellular damage.
  • Drugs of abuse can potentially induce cellular injury through various mechanisms.
  • Understanding the relationship between drug use and oxidative stress is crucial for assessing health risks.

Purpose of the Study:

  • To investigate the association between the use of common drugs of abuse and levels of urine lipoperoxides.
  • To determine if specific drugs or combinations of drugs correlate with increased lipid peroxidation markers.

Main Methods:

  • Urine samples from men testing positive for drugs of abuse were analyzed.
  • Lipid peroxidation was quantified by measuring malondialdehyde-thiobarbituric acid adducts using high-performance liquid chromatography (HPLC).

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Main Results:

  • Urine malondialdehyde (MDA) concentrations were within the reference range for barbiturates and amphetamines.
  • Significant elevations in urine MDA were observed in individuals using marijuana, cocaine, opiates, and benzodiazepines.
  • Users of multiple drugs of abuse exhibited the most significant elevations in urine MDA.

Conclusions:

  • Certain drugs of abuse, including marijuana, cocaine, opiates, and benzodiazepines, are associated with increased lipid peroxidation.
  • Elevated lipid peroxidation may be a secondary consequence of drug-induced tissue injury rather than a primary mechanism.
  • Further research is needed to elucidate the precise mechanisms of drug toxicity and their relationship to oxidative stress.