ArticleJournal of molecular neuroscience : MN2025
Non-targeted and Targeted Metabolomics Techniques Reveal Striatal Metabolome Characteristics in the Ketamine-Induced Conditioned Place Preference Mice Model.
Article in Journal of molecular neuroscience : MN, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Ketamine is a synthesized anesthetic drug that was used extensively as a surgical anesthetic in the 1960s. Currently, ketamine is being investigated extensively for its potential as a treatment for depression. However, the addictive nature of ketamine has become an issue that cannot be ignored at this stage. As of now, there is no clear understanding of the changes in striatal metabolites and their relative metabolic pathways under the addictive effect of ketamine. In this study, a stable model of ketamine-induced conditioned place preference (CPP) was established. Non-targeted metabolomics and targeted metabolomics techniques, based on the ultra-performance liquid chromatography-Q Exactive hybrid quadrupole-Orbitrap mass spectrometry (UHPLC-QE/MS) and the UHPLC-MS platform, were employed to uncover the metabolic characteristics and neurotransmitter profiles of the striatum after ketamine abuse in mice. Potential biomarkers and related differential metabolic pathways of this model have been revealed. In non-targeted metabolomics analysis, striatal differential metabolites mainly involve pathways related to arginine synthesis, purine metabolism, and morphine addiction. In targeted metabolism, the striatum of mice receiving ketamine showed an increase in the content of the neurotransmitter kynurenine (Kyn) and a decrease in the content of the neurotransmitter dopamine (DA). Our study suggested that Kyn and DA metabolism disturbances might be associated with ketamine-induced CPP phenotypes and provided a new perspective for investigating the addiction mechanisms of ketamine.
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