ArticleCNS neuroscience & therapeutics2024
Correlation between desynchrony of hippocampal neural activity and hyperlocomotion in the model mice of schizophrenia and therapeutic effects of aripiprazole.
Article in CNS neuroscience & therapeutics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Cortico-Striatal-Midbrain Circuit Dysregulation Underlying MK-801 Induced Impulsivity and the Ameliorative Effects of SEP.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Correlation between desynchrony of hippocampal neural activity and hyperlocomotion in the model mice of schizophrenia and therapeutic effects of aripiprazole.CNS neuroscience & therapeutics · 2024Article
- Lack of Efficacy of Simvastatin Adjunctive Therapy for Patients with Schizophrenia: A Meta-Analysis of Randomized Controlled Trials.Neuropsychiatric disease and treatment · 2024Article
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7 authors.
Funding
Abstract
aimsThe hippocampus has been reported to be morphologically and neurochemically altered in schizophrenia (SZ). Hyperlocomotion is a characteristic SZ-associated behavioral phenotype, which is associated with dysregulated dopamine system function induced by hippocampal hyperactivity. However, the neural mechanism of hippocampus underlying hyperlocomotion remains largely unclear.
methodsMouse pups were injected with N-methyl-D-aspartate receptor antagonist (MK-801) or vehicle twice daily on postnatal days (PND) 7-11. In the adulthood phase, one cohort of mice underwent electrode implantation in field CA1 of the hippocampus for the recording local field potentials and spike activity. A separate cohort of mice underwent surgery to allow for calcium imaging of the hippocampus while monitoring the locomotion. Lastly, the effects of atypical antipsychotic (aripiprazole, ARI) were evaluated on hippocampal neural activity.
resultsWe found that the hippocampal theta oscillations were enhanced in MK-801-treated mice, but the correlation coefficient between the hippocampal spiking activity and theta oscillation was reduced. Consistently, although the rate and amplitude of calcium transients of hippocampal neurons were increased, their synchrony and correlation to locomotion speed were disrupted. ARI ameliorated perturbations produced by the postnatal MK-801 treatment.
conclusionsThese results suggest that the disruption of neural coordination may underly the neuropathological mechanism for hyperlocomotion of SZ.
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