Cited by 1,609Treatment of Major DepressionNeuroscience and Neuropharmacology ResearchTryptophan and brain disorders

The DOI matches its Crossref record; 40 of the 40 references it cites were found in a registry or an index.

NMDAR inhibition-independent antidepressant actions of ketamine metabolites

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Abstract

Major depressive disorder affects around 16 per cent of the world population at some point in their lives. Despite the availability of numerous monoaminergic-based antidepressants, most patients require several weeks, if not months, to respond to these treatments, and many patients never attain sustained remission of their symptoms. The non-competitive, glutamatergic NMDAR (N-methyl-d-aspartate receptor) antagonist (R,S)-ketamine exerts rapid and sustained antidepressant effects after a single dose in patients with depression, but its use is associated with undesirable side effects. Here we show that the metabolism of (R,S)-ketamine to (2S,6S;2R,6R)-hydroxynorketamine (HNK) is essential for its antidepressant effects, and that the (2R,6R)-HNK enantiomer exerts behavioural, electroencephalographic, electrophysiological and cellular antidepressant-related actions in mice. These antidepressant actions are independent of NMDAR inhibition but involve early and sustained activation of AMPARs (α-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid receptors). We also establish that (2R,6R)-HNK lacks ketamine-related side effects. Our data implicate a novel mechanism underlying the antidepressant properties of (R,S)-ketamine and have relevance for the development of next-generation, rapid-acting antidepressants.

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Metadata

Authors
Zanos, P., Moaddel, R., Morris, P. J., Georgiou, P., Fischell, J., Elmer, G. I., Alkondon, M., Yuan, P., Pribut, H. J., Singh, N. S., Dossou, K. S. S., Fang, Y., Huang, X.-P., Mayo, C. L., Wainer, I. W., Albuquerque, E. X., Thompson, S. M., Thomas, C. J., Zarate Jr, C. A., & Gould, T. D.
Affiliations
  • University of Maryland, Baltimore (US)
  • National Institutes of Health (US)
  • University of North Carolina at Chapel Hill (US)
Corresponding author
Gould, Todd D.
Venue
Nature
Published
2016-05-04
Volume
533
Issue
7604
Pages
481-486
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2346390990
Cited by
1,609
References
40
Citations by year
2026: 99 · 2025: 162 · 2024: 123 · 2023: 129 · 2022: 169 · 2021: 165 · 2020: 166 · 2019: 156 · 2018: 196 · 2017: 160 · 2016: 83
FWCI
160.80
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • National Institutes of Health
  • U.S. Public Health Service (HHSN271201000008I, HHSN-271-2008-025C)
  • National Institute of Mental Health (MH107615, R01MH086828, R21MH099345, MH099345, MH086828, R01MH107615)
Topics
  • Health Sciences › Medicine › Pharmacology (medical) › Treatment of Major Depression
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
Keywords
ketamine, hydroxynorketamine, antidepressant effects, major depressive disorder, NMDA receptor antagonism, enantiomers, rapid-acting antidepressants, ketamine side effects, glutamatergic neurotransmission, EEG, electrophysiology, mice
MeSH terms
Animals, Antidepressive Agents, Female, Ketamine, Male, Time Factors, Receptors, N-Methyl-D-Aspartate, Receptors, AMPA, Mice

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