Evidence map›Paper›PMID 27145016›Full record

SynthesisHuman brain mapping2016

Brain GABA levels across psychiatric disorders: A systematic literature review and meta-analysis of (1) H-MRS studies.

Remmelt R Schür, Luc W R Draisma, Jannie P Wijnen, Marco P Boks, Martijn G J C Koevoets, Marian Joëls, Dennis W Klomp, René S Kahn, Christiaan H Vinkers

Registry-linked trialOpen access · bronzeAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Human brain mapping, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05195203 (A Phase I Randomized, Double-blinded, Placebo-controlled Dose Escalation Study to Evaluate the Safety, Tolerability, and Pharmacokinetic of HS-10353 in Chinese Adult Subjects), which is not on this map. Cited by 175 papers, 15 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
175citing papers in PubMed, 15 pooled it
23.1field-weighted citation impact, top 1% 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.

NCT05195203 phase1completednot on this mapstarted 2021, after this paper: background citation

A Phase I Randomized, Double-blinded, Placebo-controlled Dose Escalation Study to Evaluate the Safety, Tolerability, and Pharmacokinetic of HS-10353 in Chinese Adult Subjects

TypeinterventionalSponsorJiangsu Hansoh Pharmaceutical Co., Ltd.Ran2021 to 2023Enrolled96ConditionsMajor Depressive DisorderArmsHS-10353, Placebo
3 · Its place in the literature

Who cites it

175 citing papers in PubMed, 15 syntheses or guidelines pooled it, 351 citations in OpenAlex.

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  19. Modulation of GABA and glutamate by ketamine in depression: A systematic review and meta-analysis of magnetic resonance spectroscopy studies.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
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115 more citing papers are in PubMed but not listed here.

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

9 authors at 1 institution in 1 country.

Remmelt R SchürDepartment of Psychiatry, Brain Center Rudolf Magnus, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands.
Luc W R DraismaDepartment of Psychiatry, Brain Center Rudolf Magnus, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands.
Jannie P WijnenDepartment of Radiology, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands.
Marco P BoksDepartment of Psychiatry, Brain Center Rudolf Magnus, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands.
Martijn G J C KoevoetsDepartment of Psychiatry, Brain Center Rudolf Magnus, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands.
Marian JoëlsDepartment of Translational Neuroscience, Brain Center Rudolf Magnus, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands.
Dennis W KlompDepartment of Radiology, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands.
René S KahnDepartment of Psychiatry, Brain Center Rudolf Magnus, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands.
Christiaan H VinkersDepartment of Psychiatry, Brain Center Rudolf Magnus, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands.
University Medical Center Utrecht · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The inhibitory gamma-aminobutyric acid (GABA) system is involved in the etiology of most psychiatric disorders, including schizophrenia, autism spectrum disorder (ASD) and major depressive disorder (MDD). It is therefore not surprising that proton magnetic resonance spectroscopy ((1) H-MRS) is increasingly used to investigate in vivo brain GABA levels. However, integration of the evidence for altered in vivo GABA levels across psychiatric disorders is lacking. We therefore systematically searched the clinical (1) H-MRS literature and performed a meta-analysis. A total of 40 studies (N = 1,591) in seven different psychiatric disorders were included in the meta-analysis: MDD (N = 437), schizophrenia (N = 517), ASD (N = 150), bipolar disorder (N = 129), panic disorder (N = 81), posttraumatic stress disorder (PTSD) (N = 104), and attention deficit/hyperactivity disorder (ADHD) (N = 173). Brain GABA levels were lower in ASD (standardized mean difference [SMD] = -0.74, P = 0.001) and in depressed MDD patients (SMD = -0.52, P = 0.005), but not in remitted MDD patients (SMD = -0.24, P = 0.310) compared with controls. In schizophrenia this finding did not reach statistical significance (SMD = -0.23, P = 0.089). No significant differences in GABA levels were found in bipolar disorder, panic disorder, PTSD, and ADHD compared with controls. In conclusion, this meta-analysis provided evidence for lower brain GABA levels in ASD and in depressed (but not remitted) MDD patients compared with healthy controls. Findings in schizophrenia were more equivocal. Even though future (1) H-MRS studies could greatly benefit from a longitudinal design and consensus on the preferred analytical approach, it is apparent that (1) H-MRS studies have great potential in advancing our understanding of the role of the GABA system in the pathogenesis of psychiatric disorders. Hum Brain Mapp 37:3337-3352, 2016. © 2016 Wiley Periodicals, Inc.

Indexed as

Braingamma-Aminobutyric AcidHumansMental DisordersProton Magnetic Resonance Spectroscopygamma-Aminobutyric Acid1H-MRSASDGABAMDDmeta-analysispsychopathology

Identifiers

PMID27145016
PMCPMC6867515
OpenAlexW2346577083

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.