ArticleZoological research2023
Scopolamine causes delirium-like brain network dysfunction and reversible cognitive impairment without neuronal loss.
Article in Zoological research, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 16 citations in OpenAlex.
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- Vitexin Protects Against Scopolamine-Induced Cognitive Impairment by Preserving Synaptic Integrity and Modulating Nrf2/HO-1 and NF-κB Signaling Pathways.Molecular neurobiology · 2026Article
- The relationships between diabetic male infertility, diabetic cognitive impairment, and the neuroendocrine-immune network: A review.Medicine · 2026Review
- Temporal Dynamics of Perioperative Redox Balance and Its Association with Postoperative Delirium After Cardiac Surgery.Antioxidants (Basel, Switzerland) · 2026Article
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- A Novel Histone Deacetylase 6 Inhibitor, 4-FHA, Improves Scopolamine-Induced Cognitive and Memory Impairment in Mice.Biomolecules & therapeutics · 2025Article
- Animal models of Alzheimer's disease: Current strategies and new directions.Zoological research · 2024Review
- Iron promotes both ferroptosis and necroptosis in the early stage of reperfusion in ischemic stroke.Genes & diseases · 2024Article
- DNALI1 Promotes Neurodegeneration after Traumatic Brain Injury via Inhibition of Autophagosome-Lysosome Fusion.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024Article
- Impact of letters to the editor and publications in 2023.Zoological research · 2024Article
- Article
Corrections and comments
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Authors and funding
13 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Delirium is a severe acute neuropsychiatric syndrome that commonly occurs in the elderly and is considered an independent risk factor for later dementia. However, given its inherent complexity, few animal models of delirium have been established and the mechanism underlying the onset of delirium remains elusive. Here, we conducted a comparison of three mouse models of delirium induced by clinically relevant risk factors, including anesthesia with surgery (AS), systemic inflammation, and neurotransmission modulation. We found that both bacterial lipopolysaccharide (LPS) and cholinergic receptor antagonist scopolamine (Scop) induction reduced neuronal activities in the delirium-related brain network, with the latter presenting a similar pattern of reduction as found in delirium patients. Consistently, Scop injection resulted in reversible cognitive impairment with hyperactive behavior. No loss of cholinergic neurons was found with treatment, but hippocampal synaptic functions were affected. These findings provide further clues regarding the mechanism underlying delirium onset and demonstrate the successful application of the Scop injection model in mimicking delirium-like phenotypes in mice.
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