Do Patients With Alcoholic Cirrhosis Accurately Recognize Their Alcohol Tolerance? A Study Comparing Self-Perception...

Area of Science:

• Genetics
• Hepatology
• Personalized Medicine

Background:

• Genetic variations in ADH1B and ALDH2 influence alcoholic cirrhosis risk.
• Understanding patient self-awareness of genetic predispositions is crucial for targeted interventions.

Purpose of the Study:

• To investigate the association between ADH1B/ALDH2 genetic polymorphisms and self-recognition of genetic predisposition in cirrhosis patients.
• To assess the accuracy of genotype prediction among patients with alcoholic cirrhosis, nonalcoholic cirrhosis, and healthy controls.

Main Methods:

• Genotyping of ADH1B and ALDH2 was performed using SNP analysis on saliva samples from 50 alcoholic cirrhosis patients, 46 nonalcoholic cirrhosis patients, and 25 healthy controls.
• Participants' ability to predict their own genotypes was assessed prior to genetic testing.

Main Results:

• Self-recognition accuracy varied: 70.0% for alcoholic cirrhosis, 89.1% for nonalcoholic cirrhosis, and 92.0% for controls.
• ALDH2 wild-type was significantly more prevalent in alcoholic cirrhosis patients (90.0%) compared to nonalcoholic cirrhosis patients (30.4%).
• The inactive ALDH2 genotype (*2/*2) was found in 6.5% of nonalcoholic cirrhosis patients but not in alcoholic cirrhosis patients.

Conclusions:

• ALDH2 wild-type is associated with alcoholic cirrhosis, but a significant portion of patients (30%) inaccurately perceive their genetic status.
• Early genetic screening for ADH1B and ALDH2 polymorphisms can enhance patient self-awareness.
• Improved awareness through genetic screening may facilitate the development of effective preventive strategies for alcoholic cirrhosis.