Evidence map›Paper›PMID 18758757›Full record

ArticlePsychopharmacology2009

The glycine transporter 1 inhibitor SSR504734 enhances working memory performance in a continuous delayed alternation task in C57BL/6 mice.

Philipp Singer, Joram Feldon, Benjamin K Yee

Open access · bronzeAbstract read
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In one paragraph

Article in Psychopharmacology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.0field-weighted citation impact, top 15% 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

23 citing papers in PubMed, 49 citations in OpenAlex.

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  14. Effects of novel, high affinity glycine transport inhibitors on frontostriatal dopamine release in a rodent model of schizophrenia.European neuropsychopharmacology : the journal of the European College of Neuropsychopharmacology · 2012
    Article
  15. Glycine transporter-1 inhibition preceding extinction training inhibits reacquisition of cocaine seeking.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2012
    Article
  16. Article
  17. Article
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  20. Targeting glutamate synapses in schizophrenia.Trends in molecular medicine · 2011
    Review
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

3 authors at 1 institution in 1 country.

Philipp SingerLaboratory of Behavioural Neurobiology, Swiss Federal Institute of Technology, Schorenstrasse 16, 8603 Schwerzenbach, Switzerland.
Joram Feldon
Benjamin K Yee
École Polytechnique Fédérale de Lausanne · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

rationaleInhibition of the glycine transporter 1 (GlyT1) activity increases extra-cellular glycine availability in the CNS. At glutamatergic synapses, increased binding to the glycine-B site located in the N-methyl-D-aspartate receptor (NMDAR) can enhance neurotransmission via NMDARs. Systemic treatment of 2-chloro-N-[(S)-phenyl [(2S)-piperidin-2-yl] methyl]-3-trifluoromethyl benzamide, monohydrochloride (SSR504734), a selective GlyT1 inhibitor, is effective against social recognition impairment induced by neonatal phencyclidine treatment and enhances pre-pulse inhibition in a mouse strain (DBA/2) with intrinsic sensorimotor gating deficiency, suggesting that SSR504734 may be an effective cognitive enhancer.

objectiveThe objective of the study was to examine if SSR504734 exhibits a promnesic effect on working memory function in wild-type C57BL/6 mice using an automatic continuous alternation task. MATERIALS AND

methodsHungry mice were trained to alternate their nose pokes between two food magazines across successive discrete trials in an operant chamber in order to obtain food reward. Correct choice on a given trial thus followed a non-matching or win-shift rule in relation to the preceding trial, with manipulation of the demand on memory retention, by varying the delay between successive trials.

resultsPre-treatment with SSR504734 (30 mg/kg, i.p.) improved choice accuracy when the delay from the previous trial was extended to 12-16 s. Furthermore, a dose-response analysis (3, 10, 30 mg/kg) revealed a clear dose-dependent efficacy of the drug: 3 mg/kg was without effect, whilst 10 mg/kg led to an intermediate enhancement in performance.

conclusionThe present findings represent the first demonstration of the promnesic effects of SSR504734 under normal physiological conditions, lending further support to the suggestion of its potential as a cognitive enhancer.

Indexed as

AnimalsBenzamidesConditioning, OperantDose-Response Relationship, DrugFood DeprivationGlycine Plasma Membrane Transport ProteinsMaleMemory, Short-TermMiceMice, Inbred C57BLPiperidinesPsychomotor Performance2-chloro-N-((S)-phenyl((2S)-piperidin-2-yl)methyl)-3-trifluoromethyl benzamideBenzamidesGlycine Plasma Membrane Transport ProteinsPiperidines

Identifiers

PMID18758757
OpenAlexW2025514053

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.