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Trace Amine-Associated Receptor Gene Polymorphism Increases Drug Craving In Individuals With Methamphetamine Dependence, Jennifer M. Loftis, Michael Lasarev, Xiao Shi, Jodi Lapidus, Aaron Janowsky, William Hoffman, Marilyn Huckans Jan 2019

Trace Amine-Associated Receptor Gene Polymorphism Increases Drug Craving In Individuals With Methamphetamine Dependence, Jennifer M. Loftis, Michael Lasarev, Xiao Shi, Jodi Lapidus, Aaron Janowsky, William Hoffman, Marilyn Huckans

OHSU-PSU School of Public Health Faculty Publications and Presentations

Background: Methamphetamine (MA) is a potent agonist at the trace amine-associated receptor 1 (TAAR1). This study evaluated a common variant (CV) in the human TAAR1 gene, synonymous single nucleotide polymorphism (SNP) V288V, to determine the involvement of TAAR1 in MA dependence.

Methods: Participants (n = 106) with active MA dependence (MA-ACT), in remission from MA dependence (MA-REM), with active polysubstance dependence, in remission from polysubstance dependence, and with no history of substance dependence completed neuropsychiatric symptom questionnaires and provided blood samples. In vitro expression and function of CV and wild type TAAR1 receptors were also measured.

Results: The V288V polymorphism …