Evidence map›Paper›PMID 17667960›Full record

ArticleMolecular psychiatry2008

Reduced GABAA benzodiazepine receptor binding in veterans with post-traumatic stress disorder.

E Geuze, B N M van Berckel, A A Lammertsma, R Boellaard, C S de Kloet, E Vermetten, H G M Westenberg

Abstract read
PubMed Publisher
In one paragraph

Article in Molecular psychiatry, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 9% 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

65 citing papers in PubMed, 1 synthesis or guideline pooled it, 194 citations in OpenAlex.

  1. Pooled it
  2. Effects of yoga versus walking on mood, anxiety, and brain GABA levels: a randomized controlled MRS study.Journal of alternative and complementary medicine (New York, N.Y.) · 2010
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5 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

7 authors at 5 institutions in 3 countries.

E GeuzeResearch Centre-Military Mental Healthcare, Ministry of Defense, Utrecht, The Netherlands. s.g.geuze@umcutrecht.nl
B N M van Berckel
A A Lammertsma
R Boellaard
C S de Kloet
E Vermetten
H G M Westenberg
Amsterdam UMC Location VUmc · NLCentral Military Hospital · NLMinistry of Defence · GBUniversity Medical Center Utrecht · NLUtrecht University · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Gamma-aminobutyric acid (GABA(A)) receptors are thought to play an important role in modulating the central nervous system in response to stress. Animal data have shown alterations in the GABA(A) receptor complex by uncontrollable stressors. SPECT imaging with benzodiazepine ligands showed lower distribution volumes of the benzodiazepine-GABA(A) receptor in the prefrontal cortex of patients with post-traumatic stress disorder (PTSD) in one, but not in another study. The objective of the present study was to assess differences in the benzodiazepine-GABA(A) receptor complex in veterans with and without PTSD using [(11)C]flumazenil and positron emission tomography (PET). Nine drug naive male Dutch veterans with deployment related PTSD and seven male Dutch veterans without PTSD were recruited, and matched for age, region and year of deployment. Each subject received a [(11)C]flumazenil PET scan and a structural magnetic resonance imaging scan. Dynamic 3D PET scans with a total duration of 60 min were acquired, and binding in template based and manually defined regions of interest (ROI) was quantified using validated plasma input and reference tissue models. In addition, parametric binding potential images were compared on a voxel-by-voxel basis using statistical parametric mapping (SPM2). ROI analyses using both template based and manual ROIs showed significantly reduced [(11)C]flumazenil binding in PTSD subjects throughout the cortex, hippocampus and thalamus. SPM analysis confirmed these results. The observed global reduction of [(11)C]flumazenil binding in patients with PTSD provides circumstantial evidence for the role of the benzodiazepine-GABA(A) receptor in the pathophysiology of PTSD and is consistent with previous animal research and clinical psychopharmacological studies.

Indexed as

Brain MappingAdultCarbon RadioisotopesCase-Control StudiesFlumazenilFunctional LateralityGABA ModulatorsHippocampusHumansImaging, Three-DimensionalMaleNeuropsychological TestsPositron-Emission TomographyPrefrontal CortexReceptors, GABA-AReference ValuesCarbon RadioisotopesFlumazenilGABA ModulatorsReceptors, GABA-A

Identifiers

PMID17667960
OpenAlexW2064544847

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.