ArticleNeuroscience2012
Antidepressant-like effects of low ketamine dose is associated with increased hippocampal AMPA/NMDA receptor density ratio in female Wistar-Kyoto rats.
Article in Neuroscience, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 83 papers, 2 of them syntheses that pooled 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.
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.
Who cites it
83 citing papers in PubMed, 2 syntheses or guidelines pooled it, 171 citations in OpenAlex.
- Relationship Between Depression and Epigallocatechin Gallate from the Perspective of Gut Microbiota: A Systematic Review.Nutrients · 2025Pooled it
- The Mechanisms Behind Rapid Antidepressant Effects of Ketamine: A Systematic Review With a Focus on Molecular Neuroplasticity.Frontiers in psychiatry · 2022Pooled it
- Temporal Dynamics of Antidepressant Ketamine Effects on Glutamine Cycling Follow Regional Fingerprints of AMPA and NMDA Receptor Densities.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2017Trial
- Divergent behavioral strategies in Wistar and Wistar-Kyoto rats in a naturalistic task reveal mood disorder phenotypes.iScience · 2026Article
- Neuroimaging insights from Wistar-Kyoto rats under chronic mild stress: morphological and metabolic brain correlates of treatment-resistant depression.Scientific reports · 2026Article
- The effects of ketamine on methamphetamine withdrawal-induced anxiety and drug-seeking behaviors in the rat.Drug and alcohol dependence · 2025Article
- Adverse Effects Associated With High-Dose Ketamine Infusions For Refractory Pain And Psychiatric Conditions.Current pain and headache reports · 2025Review
- Early Onset Memory Deficit of WMI Rats Compared to Their Nearly Isogenic WLIs Is Reversed by Enriched Environment in Females.Genes, brain, and behavior · 2025Article
- Mechanisms of the effect of gut microbes on depression through the microbiota-gut-brain axis.Frontiers in nutrition · 2025Review
- Beyond NMDA Receptors: A Narrative Review of Ketamine's Rapid and Multifaceted Mechanisms in Depression Treatment.International journal of molecular sciences · 2024Review
- Ketamine's rapid and sustained antidepressant effects are driven by distinct mechanisms.Cellular and molecular life sciences : CMLS · 2024Article
- The role of neurotrophic factors in novel, rapid psychiatric treatments.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024Review
- The Wistar Kyoto Rat: A Model of Depression Traits.Current neuropharmacology · 2023Article
- (2R,6R)-hydroxynorketamine acts through GluA1-induced synaptic plasticity to alleviate PTSD-like effects in rat models.Neurobiology of stress · 2022Article
- The role of serotonin neurotransmission in rapid antidepressant actions.Psychopharmacology · 2022Review
- Ketamine activates adult-born immature granule neurons to rapidly alleviate depression-like behaviors in mice.Nature communications · 2022Article
- Peptide LCGA-17 Attenuates Behavioral and Neurochemical Deficits in Rodent Models of PTSD and Depression.Pharmaceuticals (Basel, Switzerland) · 2022Article
- Sex Differences in the Behavioral, Molecular, and Structural Effects of Ketamine Treatment in Depression.The international journal of neuropsychopharmacology · 2022Review
- Olfactory loss is a predisposing factor for depression, while olfactory enrichment is an effective treatment for depression.Frontiers in neuroscience · 2022Article
- Low-dose S-ketamine exerts antidepressant-like effects via enhanced hippocampal synaptic plasticity in postpartum depression rats.Neurobiology of stress · 2022Article
23 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 1 institution in 1 country.
Funding
Abstract
Preclinical as well as limited clinical studies indicate that ketamine, a non-competitive glutamate N-methyl-D-aspartate (NMDA) receptor antagonist, may exert a quick and prolonged antidepressant effect. It has been postulated that ketamine action is due to inhibition of NMDA and stimulation of alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid (AMPA) receptors. Here, we sought to determine whether ketamine would exert antidepressant effects in Wistar-Kyoto (WKY) rats, a putative animal model of depression and whether this effect would be associated with changes in AMPA/NMDA receptor densities in the hippocampus. Adult female WKY rats and their control Wistar rats were subjected to acute and chronic ketamine doses and their locomotor activity (LMA) and immobility in the forced swim test (FST) were evaluated. Hippocampal AMPA and NMDA receptor densities were also measured following a chronic ketamine dose. Ketamine, both acutely (0.5-5.0 mg/kg i.p.) and chronically (0.5-2.5 mg/kg daily for 10 days) resulted in a dose-dependent and prolonged decrease in immobility in FST in WKY rats only, suggesting an antidepressant-like effect in this model. Chronic treatment with an effective dose of ketamine also resulted in an increase in AMPA/NMDA receptor density ratio in the hippocampus of WKY rats. LMA was not affected by any ketamine treatment in either strain. These results indicate a rapid and lasting antidepressant-like effect of a low ketamine dose in WKY rat model of depression. Moreover, the increase in AMPA/NMDA receptor density in the hippocampus could be a contributory factor to behavioral effects of ketamine. These findings suggest potential therapeutic benefit in simultaneous reduction of central NMDA and elevation of AMPA receptor function in treatment of depression.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.