Evidence map›Paper›PMID 27898499›Full record

ArticleJournal of addiction medicine

COMT and BDNF Gene Variants Help to Predict Alcohol Consumption in Alcohol-dependent Patients.

Anna Klimkiewicz, Anna Mach, Andrzej Jakubczyk, Jakub Klimkiewicz, Anna Wnorowska, Maciej Kopera, Sylwia Fudalej, Margit Burmeister, Kirk Brower, Marcin Wojnar

Abstract read
In one paragraph

Article in Journal of addiction medicine. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 31% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 2 institutions in 2 countries.

Anna KlimkiewiczDepartment of Psychiatry, Medical University of Warsaw (AK, AM, AJ, AW, MK, SF, MW); Department of Anesthesiology and Intensive Therapy, Military Institute of Medicine, Warsaw, Poland (JK); and Department of Psychiatry, University of Michigan, Ann Arbor, MI (MB, KB, MW).
Anna Mach
Andrzej Jakubczyk
Jakub Klimkiewicz
Anna Wnorowska
Maciej Kopera
Sylwia Fudalej
Margit Burmeister
Kirk Brower
Marcin Wojnar
Polish Institute of International Affairs · PLNational Academy of Medicine · US

Funding

International Substance Abuse Research Training ProgramD43TW005818 · FIC · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI ZUCKER, ROBERT ALPERT · 2001 to 2010
$1.8M
International Collaborative Alcohol & Injury Research Training Program in PolandD43TW007569 · FIC · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI BLOW, FREDERIC C · 2006 to 2010
$723k
Genetics, Brain Activity, and Relapse to AlcoholismR21AA016104 · NIAAA · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI BROWER, KIRK J · 2007 to 2008
$373k
FIC NIH HHS D43 TW005818FIC NIH HHS D43 TW007569NIAAA NIH HHS R21 AA016104
6 · The paper itself

Abstract

backgroundThe neurobiology of alcohol dependence (AD) involves alterations in neurotransmitters and the stress response. We hypothesized that an interaction between functional variants of dopaminergic and neurotrophic genes may influence drinking in AD.

methodsThe relationship between alcohol consumption and single-nucleotide polymorphisms, Val66Met in the brain-derived neurotrophic factor (BDNF), and Val158Met in the catechol-O-methyltransferase (COMT), was analyzed among 281 alcohol-dependent individuals.

resultsIndividuals carrying both the COMT Met158Met genotype and the BDNF Val66Val genotype drank more than those with other variants of these genes (P = 0.039). Those who had a family history of AD also drank more than those without a family history (P = 0.048). Patients with both Met/Met genotype in the COMT Val158Met polymorphism and Val/Val genotype in the BDNF Val66Met polymorphism suffered from more health problems than those carrying other variants (P = 0.030) and had lower motivation to change drinking patterns (P = 0.031).

conclusionsPatients carrying both the BDNF Val66Val and COMT Met158Met variants had higher alcohol consumption. These effects may be influenced by the effects of BDNF and COMT on dopamine responses to alcohol. Motivation-enhancing strategies might benefit the group of patients identified by genotyping in this study, and also treatment aimed at reducing alcohol consumption.

Indexed as

AdultAlcohol DrinkingAlcoholismBrain-Derived Neurotrophic FactorCatechol O-MethyltransferaseFemaleHumansMaleMiddle AgedPolandBDNF protein, humanBrain-Derived Neurotrophic FactorCatechol O-MethyltransferaseCOMT protein, human

Identifiers

PMID27898499
PMCPMC5354983
OpenAlexW2557186626

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.