Evidence map›Paper›PMID 19381707›Full record

ArticleEuropean archives of psychiatry and clinical neuroscience2009

The effect of the COMT val(158)met polymorphism on neural correlates of semantic verbal fluency.

Axel Krug, Valentin Markov, Abigail Sheldrick, Sören Krach, Andreas Jansen, Klaus Zerres, Thomas Eggermann, Tony Stöcker, N Jon Shah, Tilo Kircher

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In one paragraph

Article in European archives of psychiatry and clinical neuroscience, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 17% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.

  1. Pooled it
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  3. Toward the Language Oscillogenome.Frontiers in psychology · 2018
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 3 institutions in 1 country.

Axel KrugDepartment of Psychiatry and Psychotherapy, Philipps-University Marburg, Rudolf-Bultmann-Str. 8, 35039, Marburg, Germany. kruga@med.uni-marburg.de
Valentin Markov
Abigail Sheldrick
Sören Krach
Andreas Jansen
Klaus Zerres
Thomas Eggermann
Tony Stöcker
N Jon Shah
Tilo Kircher
Philipps University of Marburg · DERWTH Aachen University · DEForschungszentrum Jülich · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Variation in the val(158)met polymorphism of the COMT gene has been found to be associated with cognitive performance. In functional neuroimaging studies, this dysfunction has been linked to signal changes in prefrontal areas. Given the complex modulation and functional heterogeneity of frontal lobe systems, further specification of COMT gene-related phenotypes differing in prefrontally mediated cognitive performance are of major interest. Eighty healthy individuals (54 men, 26 women; mean age 23.3 years) performed an overt semantic verbal fluency task while brain activation was measured with functional magnetic resonance imaging (fMRI). COMT val(158)met genotype was determined and correlated with brain activation measured with fMRI during the task. Although there were no differences in performance, brain activation in the left inferior frontal gyrus [Brodmann area 10] was positively correlated with the number of val alleles in the COMT gene. COMT val(158)met status modulates brain activation during the language production on a semantic level in an area related to executive functions.

Indexed as

SemanticsAdultBrainBrain MappingCatechol O-MethyltransferaseDNA Mutational AnalysisExecutive FunctionFemaleGenotypeHumansImage Processing, Computer-AssistedMagnetic Resonance ImagingMaleMethionineMiddle AgedNeuropsychological TestsCatechol O-MethyltransferaseMethionineOxygenValine

Identifiers

PMID19381707
OpenAlexW2086083847

What OpenQuestion holds

Textmetadata
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.