Evidence map›Paper›PMID 24893066›Full record

ArticleTranslational psychiatry2014

NMDA receptor antagonists ketamine and Ro25-6981 inhibit evoked release of glutamate in vivo in the subiculum.

T L Stan, A Alvarsson, N Branzell, V C Sousa, P Svenningsson

Abstract read
In one paragraph

Article in Translational psychiatry, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
–field-weighted citation impact
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

12 citing papers in PubMed.

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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

5 authors.

T L StanSection of Translational Neuropharmacology, Department of Clinical Neuroscience, Laboratory of Translational Neuropharmacology, Center of Molecular Medicine, Karolinska Institute, Stockholm, Sweden.
A AlvarssonSection of Translational Neuropharmacology, Department of Clinical Neuroscience, Laboratory of Translational Neuropharmacology, Center of Molecular Medicine, Karolinska Institute, Stockholm, Sweden.
N BranzellSection of Translational Neuropharmacology, Department of Clinical Neuroscience, Laboratory of Translational Neuropharmacology, Center of Molecular Medicine, Karolinska Institute, Stockholm, Sweden.
V C SousaSection of Translational Neuropharmacology, Department of Clinical Neuroscience, Laboratory of Translational Neuropharmacology, Center of Molecular Medicine, Karolinska Institute, Stockholm, Sweden.
P SvenningssonSection of Translational Neuropharmacology, Department of Clinical Neuroscience, Laboratory of Translational Neuropharmacology, Center of Molecular Medicine, Karolinska Institute, Stockholm, Sweden.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Preclinical and clinical data have identified ketamine, a non-selective NMDAR (N-methyl-D-aspartate receptor) antagonist, as a promising medication for patients who do not respond to treatment with monoamine-based antidepressants. Moreover, unlike the current monoamine-based antidepressants, ketamine has a long-lasting effect already after a single dose. The mechanisms of ketamine action remain to be fully understood. Using a recently developed microelectrode array (MEA), which allows sub-second measurements of fluctuating glutamate concentrations, we studied here the effects of in vivo local application of the ketamine and of the N2B subunit-specific antagonist Ro25-6981 upon evoked glutamate release. Both ligands inhibit glutamate release in subregions of the hippocampus and prefrontal cortex. Likewise, acute systemic ketamine treatment, at an antidepressant dose, caused a reduction in evoked glutamate release in the subiculum. We suggest that the effects of ketamine and Ro25-6981 in the subiculum could involve blockade of presynaptic NMDA receptors containing N2B subunits.

Indexed as

AnimalsExcitatory Amino Acid AntagonistsExcitatory Postsynaptic PotentialsGlutamic AcidHippocampusKetamineMaleMiceMice, Inbred C57BLMicroelectrodesPhenolsPiperidinesPrefrontal CortexRandom AllocationReceptors, N-Methyl-D-AspartateExcitatory Amino Acid AntagonistsGlutamic AcidKetamineNR2B NMDA receptorPhenolsPiperidinesReceptors, N-Methyl-D-AspartateRo 25-6981

Identifiers

PMID24893066
PMCPMC4080320

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

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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.