Evidence map›Paper›PMID 30139393›Full record

ArticlePsychological medicine2018

Selective role for the COMT polymorphism in a trans-diagnostic compulsivity phenotype.

Samuel R Chamberlain, Jon E Grant

Open access · bronzeAbstract readLetter
In one paragraph

Article in Psychological medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact, top 88% of its field
1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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3 · Its place in the literature

Who cites it

0 citing papers in PubMed, 0 citations in OpenAlex.

No citing paper in PubMed yet.

4 · The record

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5 · Who and what money

Authors and funding

2 authors at 2 institutions in 2 countries.

Samuel R ChamberlainDepartment of Psychiatry,University of Cambridge,Cambridge,UK.
Jon E GrantDepartment of Psychiatry and Behavioral Neuroscience,University of Chicago, Pritzker School of Medicine,Chicago,IL,USA.
University of Cambridge · GBUniversity of Chicago · US

Funding

Wellcome Trust 110049
6 · The paper itself

Abstract

backgroundImpulsivity and compulsivity are central to understanding a range of psychiatric disorders but also to understanding the spectrum of normative human behavior. It was recently shown that separable latent phenotypes of impulsivity and compulsivity could be fractionated. The possible genetic contributions to these latent phenotypes have yet to be elicited. The catechol-o-methyl transferase (COMT) Val158Met polymorphism (rs4680) regulates cortical dopamine degradation and is a key area of interest in this context.

methodsCOMT Val158Met polymorphism status was obtained from a random subset (n = 258) of young adults from an established cohort, for whom latent phenotype scores were previously reported. Differences in latent phenotype scores were explored between COMT groups using analysis of variance (ANOVA) and post-hoc t tests.

resultsThe Val-Val subgroup exhibited significantly elevated compulsivity scores compared to both other groups. Impulsivity scores did not differ significantly as a function of COMT Val158Met polymorphism status.

conclusionsThese results suggest that the COMT polymorphism, and by implication cortical dopamine degradation, influences the expression of a trans-diagnostic compulsivity phenotype, even accounting for possible confounding effects of impulsivity.

Indexed as

AdultCatechol O-MethyltransferaseCohort StudiesCompulsive BehaviorHumansImpulsive BehaviorYoung AdultCatechol O-MethyltransferaseCOMT protein, human

Identifiers

PMID30139393
PMCPMC6287712
OpenAlexW2888047224

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.