Evidence map›Paper›PMID 22776995›Full record

ArticlePsychopharmacology2012

A polymorphism in the gene of the endocannabinoid-degrading enzyme FAAH (FAAH C385A) is associated with emotional-motivational reactivity.

Annette Conzelmann, Andreas Reif, Christian Jacob, Peter Weyers, Klaus-Peter Lesch, Beat Lutz, Paul Pauli

Open access · hybridAbstract read
In one paragraph

Article in Psychopharmacology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.7field-weighted citation impact, top 11% 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

16 citing papers in PubMed, 38 citations in OpenAlex.

  1. Review
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  4. Impact of FAAH genetic variation on fronto-amygdala function during emotional processing.European archives of psychiatry and clinical neuroscience · 2019
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  9. Neurobiological Interactions Between Stress and the Endocannabinoid System.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2016
    Review
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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

7 authors at 2 institutions in 1 country.

Annette ConzelmannDepartment of Psychology-Biological Psychology, Clinical Psychology, and Psychotherapy, University of Würzburg, Marcusstr 9-11, 97070 Wurzburg, Germany.
Andreas Reif
Christian Jacob
Peter Weyers
Klaus-Peter Lesch
Beat Lutz
Paul Pauli
University of Würzburg · DEJohannes Gutenberg University Mainz · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

rationaleThe endocannabinoid (eCB) system is implicated in several psychiatric disorders. Investigating emotional-motivational dysfunctions as underlying mechanisms, a study in humans revealed that in the C385A polymorphism of the fatty acid amide hydrolase (FAAH), the degrading enzyme of the eCB anandamide (AEA), A carriers, who are characterized by increased signaling of AEA as compared to C/C carriers, exhibited reduced brain reactivity towards unpleasant faces and enhanced reactivity towards reward. However, the association of eCB system with emotional-motivational reactivity is complex and bidirectional due to upcoming compensatory processes.

objectivesTherefore, we further investigated the relationship of the FAAH polymorphism and emotional-motivational reactivity in humans.

methodsWe assessed the affect-modulated startle, and ratings of valence and arousal in response to higher arousing pleasant, neutral, and unpleasant pictures in 67 FAAH C385A C/C carriers and 45 A carriers.

resultsContrarily to the previous functional MRI study, A carriers compared to C/C carriers exhibited an increased startle potentiation and therefore emotional responsiveness towards unpleasant picture stimuli and reduced startle inhibition indicating reduced emotional reactivity in response to pleasant pictures, while both groups did not differ in ratings of arousal and valence.

conclusionsOur findings emphasize the bidirectionality and thorough examination of the eCB system's impact on emotional reactivity as a central endophenotype underlying various psychiatric disorders.

Indexed as

AdultAmidohydrolasesArousalEmotionsEndocannabinoidsFatty Acid Amide HydrolasesFemaleHumansMaleMotivationPolymorphism, GeneticReflex, StartleYoung AdultAmidohydrolasesEndocannabinoidsFatty Acid Amide Hydrolases

Identifiers

PMID22776995
PMCPMC3505526
OpenAlexW2057639351

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.