| Literature DB >> 29354329 |
Frances L Wang1,2, Laurie Chassin1.
Abstract
Serotonin (5-HT) functioning is associated with alcohol problems. However, the mechanisms underlying this association remain unclear. The current study tested whether five separate dimensions of impulsivity (UPPS-P) mediated the relation between a polygenic score indexing 5-HT functioning and alcohol problems and whether any of these paths were moderated by age. Results showed that a 5-HT polygenic score predicted alcohol problems indirectly through negative urgency, but not any other facet of impulsivity. The 5-HT polygenic score also directly predicted alcohol problems. No age moderation was found. Findings suggest that negative urgency might be one important mechanism underlying the relation between genetically-influenced 5-HT functioning and alcohol problems. However, genetically-influenced 5-HT functioning likely influences alcohol problems through additional mechanisms. More broadly, results suggest that the previously observed transdiagnostic nature of 5-HT functioning on diverse types of psychopathology might be, in part, explained by its effect on negative urgency.Entities:
Keywords: Alcohol Problems; Impulsivity; Negative Urgency; Polygenic Risk Score; Serotonin
Year: 2017 PMID: 29354329 PMCID: PMC5773057 DOI: 10.1177/2167702617733817
Source DB: PubMed Journal: Clin Psychol Sci ISSN: 2167-7034