Evidence map›Paper›PMID 23455595›Full record

ArticlePsychopharmacology2013

Ketamine elicits sustained antidepressant-like activity via a serotonin-dependent mechanism.

Valentina Gigliucci, Grainne O'Dowd, Sheena Casey, Danielle Egan, Sinead Gibney, Andrew Harkin

Abstract read
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In one paragraph

Article in Psychopharmacology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 83 papers.

0numbers the graph read from it
0cells of the map it votes in
83citing papers in PubMed
13.1field-weighted citation impact, top 1% 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

83 citing papers in PubMed, 178 citations in OpenAlex.

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23 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

6 authors at 1 institution in 1 country.

Valentina GigliucciNeuropsychopharmacology Research Group, School of Pharmacy & Pharmaceutical Sciences and Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin 2, Ireland.
Grainne O'Dowd
Sheena Casey
Danielle Egan
Sinead Gibney
Andrew Harkin
Trinity College Dublin · IE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

rationaleBehavioural antidepressant-like effects of ketamine have been reported in the forced swimming test (FST). The mechanisms mediating such effects are unknown.

objectivesAs serotonin (5-HT) is an important transmitter mediating antidepressant responsiveness in the FST, the influence of 5-HT depletion on the antidepressant-like effect of ketamine was assessed.

methodsThe effect of ketamine (25 mg/kg, i.p., 1 or 24 h prior to test) was assessed in the FST in naive rats or animals subjected to 5-HT depletion, repeated stress or following a combination of 5-HT depletion and stress. Endogenous 5-HT was depleted using the tryptophan hydroxylase inhibitor para-chlorophenylalanine (3 × 150 mg/kg, i.p.). Stress was induced by physical restraint (2 h/day for 10 days).

resultsIn naive rats, ketamine administered 24 or 1 h prior to test produced a characteristic antidepressant-like reduction in immobility time in the FST. Depletion of 5-HT blocked this reduction in immobility when ketamine was administered 24 h prior FST, indicative of 5-HT dependency. The increase in immobility provoked by repeated restraint stress (2 h/day for 10 days) was blocked by ketamine when administered 24 h prior to FST, but this effect dissipated when animals were subjected to 5-HT depletion.

conclusionsThese observations are consistent with a role for 5-HT in mediating sustained antidepressant activity of ketamine in the FST. Molecular and cellular changes induced by ketamine may produce a rapid adaptation of 5-HT transmission which underlies the antidepressant response.

Indexed as

AnimalsAntidepressive AgentsDepressionDisease Models, AnimalExcitatory Amino Acid AntagonistsKetamineMaleRatsRats, Sprague-DawleySerotoninStress, PsychologicalSwimmingTime FactorsAntidepressive AgentsExcitatory Amino Acid AntagonistsKetamineSerotonin

Identifiers

PMID23455595
OpenAlexW2014192652

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.