Evidence map›Paper›PMID 27705802›Full record

ArticleCell reports2016

Cytosolic Accumulation of L-Proline Disrupts GABA-Ergic Transmission through GAD Blockade.

Gregg W Crabtree, Alan J Park, Joshua A Gordon, Joseph A Gogos

Open access · goldAbstract read
In one paragraph

Article in Cell reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
4.5field-weighted citation impact, top 5% 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

36 citing papers in PubMed, 75 citations in OpenAlex.

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  14. Atypical cortical networks in children at high-genetic risk of psychiatric and neurodevelopmental disorders.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024
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  17. Review
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  20. [Variations in fecal microbiota of first episode schizophrenia associated with clinical assessment and serum metabolomics].Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences · 2022
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 3 institutions in 1 country.

Gregg W CrabtreeDepartment of Physiology and Cellular Biophysics, Columbia University Medical Center, New York, NY 10032, USA. Electronic address: gwc2@columbia.edu.
Alan J ParkDepartment of Psychiatry, Columbia University, New York, NY 10032, USA.
Joshua A GordonDepartment of Psychiatry, Columbia University, New York, NY 10032, USA; Division of Integrative Neuroscience, New York State Psychiatric Institute, New York, NY 10032, USA.
Joseph A GogosDepartment of Physiology and Cellular Biophysics, Columbia University Medical Center, New York, NY 10032, USA; Department of Neuroscience, Columbia University Medical Center, New York, NY 10032, USA. Electronic address: jag90@cumc.columbia.edu.
Columbia University Irving Medical Center · USColumbia University · USNew York State Psychiatric Institute

Funding

Mechanisms underlying the functional connectivity deficit in the 22q11 microdeletR01MH096274 · NIMH · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI GOGOS, JOSEPH A · 2012 to 2021
$3.6M
RESEARCH TRAINING-PSYCHOBIOLOGICAL SCIENCEST32MH018264 · NIMH · COLUMBIA UNIV NEW YORK MORNINGSIDE · PI MYERS, MICHAEL MORGAN · 1985 to 2012
$3.4M
The role of GABA-mimetic metabolites in neurodevelopmental and neuropsychiatric dR21MH100691 · NIMH · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI GOGOS, JOSEPH A · 2013 to 2014
$440k
NIMH NIH HHS R01 MH096274NIMH NIH HHS R21 MH100691NIMH NIH HHS T32 MH018264
6 · The paper itself

Abstract

Proline dehydrogenase (PRODH), which degrades L-proline, resides within the schizophrenia-linked 22q11.2 deletion suggesting a role in disease. Supporting this, elevated L-proline levels have been shown to increase risk for psychotic disorders. Despite the strength of data linking PRODH and L-proline to neuropsychiatric diseases, targets of disease-relevant concentrations of L-proline have not been convincingly described. Here, we show that Prodh-deficient mice with elevated CNS L-proline display specific deficits in high-frequency GABA-ergic transmission and gamma-band oscillations. We find that L-proline is a GABA-mimetic and can act at multiple GABA-ergic targets. However, at disease-relevant concentrations, GABA-mimesis is limited to competitive blockade of glutamate decarboxylase leading to reduced GABA production. Significantly, deficits in GABA-ergic transmission are reversed by enhancing net GABA production with the clinically relevant compound vigabatrin. These findings indicate that accumulation of a neuroactive metabolite can lead to molecular and synaptic dysfunction and help to understand mechanisms underlying neuropsychiatric disease.

Indexed as

AnimalsCentral Nervous SystemCytosolDisease Models, Animalgamma-Aminobutyric AcidGamma RhythmGenetic Predisposition to DiseaseGlutamate DecarboxylaseHumansMiceProlineProline OxidaseSchizophreniaVigabatringamma-Aminobutyric AcidGlutamate DecarboxylaseProlineProline OxidaseVigabatrin22Q11.2GADgamma oscillationsin vivo neural circuitsL-prolineneuroactive metabolitesPRODHpsychiatric diseasesschizophreniasynaptic plasticity

Identifiers

PMID27705802
PMCPMC5104186
OpenAlexW2529536607

What OpenQuestion holds

Textmetadata
LicenceTDM
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.