A genetic difference at the opiate receptor gene affects a person’s response to alcohol
Previous research has implicated the brain’s opioid system in the development of alcohol-use disorders. The mu-opioid receptor, which is encoded by the OPRM1 gene, is the primary site of action for opiates with high abuse potential, such as opium and heroin, and may also contribute to the effects of non-opioid drugs, such as cocaine and alcohol. Findings published in the December issue of Alcoholism: Clinical & Experimental Research indicate that individuals with the G variant of the A118 polymorphism of the OPRM1 gene have greater subjective feelings to alcohol’s effects as well as a greater likelihood of a family history of alcohol-use disorders.
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Last reviewed: By John M. Grohol, Psy.D. on 15 Dec 2004
