Oxidative damage in young alcohol drinkers: A preliminary study

Area of Science:

• Biochemistry
• Toxicology
• Human Physiology

Background:

• Oxidative damage (OD) biomarkers assess metabolic stress in alcohol consumers.
• Biomarkers are typically measured late, after hepatic function impairment.
• Early detection of OD may identify individuals at risk from alcohol consumption.

Purpose of the Study:

• Evaluate OD biomarkers in young individuals with early-stage alcohol consumption.
• Investigate potential for early detection of alcohol-induced damage.

Main Methods:

• Compared a group of young alcohol drinkers (YEA) with a non-drinker control group (CG).
• Measured blood counts, alcohol dehydrogenase (ADH) activity, glutathione peroxidase (GSH-Px) activity, DNA damage, and lipid peroxidation.
• Participants were aged 18-23 years, with YEA consuming an average of 118 g ethanol/week.

Main Results:

• No significant differences in anthropometric or blood parameters, or clinical signs of liver damage, between groups.
• YEA group showed higher ADH activity, lipid peroxidation, and DNA damage compared to CG.
• GSH-Px activity was lower in the YEA group than in the CG.

Conclusions:

• Alterations in OD biomarkers are detectable in individuals with a 4-5 year history of alcohol consumption.
• This study provides evidence of OD in early-stage alcohol abuse.
• OD biomarkers may serve as early indicators of alcohol-related harm in young people.