The mu opioid receptor genotype may be a marker for those who drink for alcohol's rewarding effects
Previous research has found that individuals who become more energized, talkative, and/or social when they drink ? versus sedated or sleepy ? are more likely to drink more heavily. A new study examined the impact of a mutation of the mu opioid receptor gene on the effects of drinking. Findings indicate that the OPRM1 genotype seems to moderate the pleasant and stimulating effects to alcohol among alcohol-dependent individuals. View full story