ArticleAlzheimer's & dementia : the journal of the Alzheimer's Association2024
The ketamine metabolite (2R,6R)-hydroxynorketamine rescues hippocampal mRNA translation, synaptic plasticity and memory in mouse models of Alzheimer's disease.
Article in Alzheimer's & dementia : the journal of the Alzheimer's Association, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Ketamine and Evolving Neuroplasticity.Clinical drug investigation · 2026Review
- Iron overload induces ROS-mediated neural stem/progenitor cells apoptosis via mTOR pathway.BMC neuroscience · 2026Article
- Betulinaldehyde Ameliorates Aβ-Induced Neurotoxicity and Cognitive Deficits by Modulating the eEF2K/eEF2 Pathway.CNS neuroscience & therapeutics · 2026Article
- Irisin promotes selective changes in hippocampal mitochondrial metabolism in mice.Biochemistry and biophysics reports · 2026Article
- A Time-Sensitive Plasticity Distinguishes the Rapid and Sustained Synaptic Actions of Ketamine from Its (2The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026Article
- Roles of MAPKs, Including Those Activated by BDNF/TrkB, and Their Contribution in Neurodegenerative Diseases.International journal of molecular sciences · 2026Review
- Mechanism of antidepressant action of ketamine and differences between its two enantiomers.Journal of anesthesia and translational medicine · 2025Review
- Psychoactive substances: novel molecular insights and therapeutic potential for Alzheimer's disease.Translational neurodegeneration · 2025Review
- Article
- Exploring the Neuroprotective and Neuropsychiatric Symptom Management Potential of Ketamine in Alzheimer's Disease.Cureus · 2025Review
- Ketamine does not rescue plaque load or gap detection in the 5XFAD mouse model of Alzheimer's disease.Frontiers in aging neuroscience · 2025Article
- Defective regulation of the eIF2-eIF2B translational axis underlies depressive-like behavior in mice and correlates with major depressive disorder in humans.Translational psychiatry · 2024Article
- The ketamine metabolite (2R,6R)-hydroxynorketamine rescues hippocampal mRNA translation, synaptic plasticity and memory in mouse models of Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024Article
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Authors and funding
21 authors.
Funding
Abstract
introductionImpaired brain protein synthesis, synaptic plasticity, and memory are major hallmarks of Alzheimer's disease (AD). The ketamine metabolite (2R,6R)-hydroxynorketamine (HNK) has been shown to modulate protein synthesis, but its effects on memory in AD models remain elusive.
methodsWe investigated the effects of HNK on hippocampal protein synthesis, long-term potentiation (LTP), and memory in AD mouse models.
resultsHNK activated extracellular signal-regulated kinase 1/2 (ERK1/2), mechanistic target of rapamycin (mTOR), and p70S6 kinase 1 (S6K1)/ribosomal protein S6 signaling pathways. Treatment with HNK rescued hippocampal LTP and memory deficits in amyloid-β oligomers (AβO)-infused mice in an ERK1/2-dependent manner. Treatment with HNK further corrected aberrant transcription, LTP and memory in aged APP/PS1 mice. DISCUSSION: Our findings demonstrate that HNK induces signaling and transcriptional responses that correct synaptic and memory deficits in AD mice. These results raise the prospect that HNK could serve as a therapeutic approach in AD. HIGHLIGHTS: The ketamine metabolite HNK activates hippocampal ERK/mTOR/S6 signaling pathways. HNK corrects hippocampal synaptic and memory defects in two mouse models of AD. Rescue of synaptic and memory impairments by HNK depends on ERK signaling. HNK corrects aberrant transcriptional signatures in APP/PS1 mice.
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