Evidence map›Paper›PMID 32399469›Full record

ReviewMolecular neuropsychiatry2020

EAAT2 as a Research Target in Bipolar Disorder and Unipolar Depression: A Systematic Review.

Caren J Blacker, Vincent Millischer, Lauren M Webb, Ada M C Ho, Martin Schalling, Mark A Frye, Marin Veldic

Open access · bronzeAbstract readReview
In one paragraph

Review in Molecular neuropsychiatry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
2.6field-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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.

  1. Pooled it
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  13. Alterations in Astrocytic Regulation of Excitation and Inhibition by Stress Exposure and in Severe Psychopathology.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022
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  15. Article
  16. [A Review of the State of Purinergic Signaling and Psychological Stress].Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2021
    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 3 institutions in 2 countries.

Caren J BlackerDepartment of Psychiatry and Psychology, Mayo Clinic Depression Center, Mayo Clinic, Rochester, Minnesota, USA.
Vincent MillischerDepartment of Molecular Medicine and Surgery (MMK), Karolinska Institutet, Stockholm, Sweden.
Lauren M WebbMayo Medical School, Mayo Clinic, Rochester, Minnesota, USA.
Ada M C HoDepartment of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic College of Medicine, Rochester, Minnesota, USA.
Martin SchallingDepartment of Molecular Medicine and Surgery (MMK), Karolinska Institutet, Stockholm, Sweden.
Mark A FryeDepartment of Psychiatry and Psychology, Mayo Clinic Depression Center, Mayo Clinic, Rochester, Minnesota, USA.
Marin VeldicDepartment of Psychiatry and Psychology, Mayo Clinic Depression Center, Mayo Clinic, Rochester, Minnesota, USA.
Mayo Clinic in Arizona · USKarolinska University Hospital · SEMayo Clinic · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Glutamate is implicated in the neuropathology of both major depressive disorder and bipolar disorder. Excitatory amino acid transporter 2 (EAAT2) is the major glutamate transporter in the mammalian brain, removing glutamate from the synaptic cleft and transporting it into glia for recycling. It is thereby the principal regulator of extracellular glutamate levels and prevents neuronal excitotoxicity. EAAT2 is a promising target for elucidating the mechanisms by which the glutamate-glutamine cycle interacts with neuronal systems in mood disorders. Forty EAAT2 studies (published January 1992-January 2018) were identified via a systematic literature search. The studies demonstrated that chronic stress/steroids were most commonly associated with decreased EAAT2. In rodents, EAAT2 inhibition worsened depressive behaviors. Human EAAT2 expression usually decreased in depression, with some regional brain differences. Fewer data have been collected regarding the roles and regulation of EAAT2 in bipolar disorder. Future directions for research include correlating EAAT2 and glutamate levels in vivo, elucidating genetic variability and epigenetic regulation, clarifying intracellular protein and pharmacologic interactions, and examining EAAT2 in different bipolar mood states. As part of a macromolecular complex within glia, EAAT2 may contribute significantly to intracellular signaling, energy regulation, and cellular homeostasis. An enhanced understanding of this system is needed.

Indexed as

Bipolar disorderDepressionEAAT2GlutamateSCL1A2

Identifiers

PMID32399469
PMCPMC7206595
OpenAlexW2963036768

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.