Evidence map›Paper›PMID 32490241›Full record

ArticleHeliyon2020

Negative association between left prefrontal GABA concentration and BDNF serum concentration in young adults.

Sabrina Theresia Müller, Andreas Buchmann, Melanie Haynes, Carmen Ghisleni, Christopher Ritter, Ruth Tuura, Gregor Hasler

Open access · goldAbstract read
In one paragraph

Article in Heliyon, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
0.2field-weighted citation impact, top 45% 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

4 citing papers in PubMed, 1 synthesis or guideline pooled it, 4 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
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 3 institutions in 1 country.

Sabrina Theresia MüllerPsychiatric University Hospital, University of Bern, Bolligenstrasse 111, 3000, Bern 60, Switzerland.
Andreas BuchmannPsychiatric University Hospital, University of Bern, Bolligenstrasse 111, 3000, Bern 60, Switzerland.
Melanie HaynesPsychiatric University Hospital, University of Bern, Bolligenstrasse 111, 3000, Bern 60, Switzerland.
Carmen GhisleniCenter of MR-Research, University Children's Hospital Zurich, Steinwiesstrasse 75, 8032, Zurich, Switzerland.
Christopher RitterPsychiatric University Hospital, University of Bern, Bolligenstrasse 111, 3000, Bern 60, Switzerland.
Ruth TuuraCenter of MR-Research, University Children's Hospital Zurich, Steinwiesstrasse 75, 8032, Zurich, Switzerland.
Gregor HaslerUnit of Psychiatry Research, University of Fribourg, Chemin du Cardinal-Journet 3, Villars-sur-Glâne, 1752, Fribourg, Switzerland.
University of Bern · CHUniversity Children's Hospital Zurich · CHUniversity of Fribourg · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe brain's major inhibitory neurotransmitter gamma-aminobutyric acid (GABA) and the brain-derived neurotrophic factor (BDNF) play important roles in several stress-related disorders. Magnetic resonance spectroscopy (MRS) allows for non-invasive quantification of GABA concentration in the brain. We investigated the relationship between GABA concentration in the left dorsolateral prefrontal cortex (DLPFC) and BDNF concentration in the serum in a community-based sample of young subjects.

methodsFor the GABA measurement a single voxel MR spectrum was assessed in the prefrontal lobe (25 × 40 × 30 mm) using the MEGA-PRESS method in 276 subjects. BDNF serum concentrations were assessed with an ELISA kit. For 147 subjects we had both MRS and BDNF serum data, and for 79 subjects we had genotype data on the BDNF rs6265 polymorphism. Depressive psychopathology was assessed using Beck's Depression Inventory (BDI), Montgomery-Asberg Depression Rating Scale (MADRS) and Structured Clinical Interviews for Diagnostic and Statistical Manual of Mental Disorders (SCID) for DSM-IV.

resultsGABA concentration in the left DLPFC was negatively associated with BDNF serum concentration (r = -.264, p = .001). This correlation remained significant if corrected for sex (r = -.264, p = .001). BDNF serum concentration was also positively associated with volumes and surface areas of the left prefrontal cortex (p = .048, p = .005). There were no significant associations or interaction with depressive psychopathology (BDI, MADRS, SCID) or rs6265.

conclusionThe results of this study suggest that GABA, BDNF and prefrontal brain volumes are interrelated, but do not show a strong association to depressive psychopathology, possibly due to the mild forms of psychiatric conditions present in our community-based sample.

Indexed as

BDNFClinical psychologyDepressionGABAHuman geneticsMRSNeuroimagingNeurosciencePsychiatryPsychopharmacologyStress

Identifiers

PMID32490241
PMCPMC7260440
OpenAlexW3032683315

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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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.