Abstract:
:Alcohol use disorder (AUD) is a chronic and relapsing disease with a substantial genetic influence. Given the recent discovery of the association of PPM1G methylation with alcohol use disorder (AUD) from a genome-wide methylation study, we sought to verify and extend the previous work of AUD-related impulsivity in a Korean population with AUD. A total of 244 men with AUD were assessed for psychological characteristics and behavioral impulsivity using stop signal task (response inhibition) and Balloon Analog Risk Task (risk-taking). Leukocyte DNA methylation at PPM1G was quantified using pyrosequencing. The effects of PPM1G methylation on severity of problematic drinking measured by Alcohol Use Disorder Identification Test (AUDIT) and multidimensional impulsivity were tested using linear regression analyses. Hypermethylation of PPM1G was significantly associated with risk-taking propensity among men with AUD. No significant association of PPM1G methylation was found to be associated with AUDIT scores and response inhibition. Our findings indicate that altered methylation of PPM1G may influence the impulsive choice of risk-taking in AUD. Further research is required in order to determine the role of PPM1G in the pathophysiology of AUD and multidimensional impulsivity.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Park CI,Kim HW,Hwang SS,Kang JI,Kim SJdoi
10.1038/s41598-020-62504-ysubject
Has Abstractpub_date
2020-03-26 00:00:00pages
5490issue
1issn
2045-2322pii
10.1038/s41598-020-62504-yjournal_volume
10pub_type
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