ArticleEuropean journal of medical research2024
Dexmedetomidine attenuates acute stress-impaired learning and memory in mice by maintaining the homeostasis of intestinal flora.
Article in European journal of medical research, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Dexmedetomidine Exerts Multi-level Effects to Ameliorate Alzheimer's Disease Pathology in the Adult Zebrafish Brain.Molecular neurobiology · 2026Article
- Interactions Between Perioperative Anesthesia Management and Gut Microbiota: Current Research Advances.Cellular and molecular neurobiology · 2026Review
- Gut microbiota profiles and potential biomarkers in pre-pubertal females with ADHD.Frontiers in microbiology · 2026Article
- Physiological responses and gut microbiota dynamics in beef cattle following transport stress syndrome with melatonin or dexmedetomidine administration.Frontiers in veterinary science · 2026Article
- Optimizing Pediatric Sedation: Evaluating Remimazolam and Dexmedetomidine for Safety and Efficacy in Clinical Practice.Paediatric drugs · 2025Review
- Gut-Brain Axis-Based Polygala Tenuifolia and Magnolia Officinalis Improve D-gal-Induced Cognitive Impairment in Mice Through cAMP and NF-κB Signaling Pathways.Drug design, development and therapy · 2025Article
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Authors and funding
9 authors.
Funding
Abstract
Dexmedetomidine (Dex) has been used in surgery to improve patients' postoperative cognitive function. However, the role of Dex in stress-induced anxiety-like behaviors and cognitive impairment is still unclear. In this study, we tested the role of Dex in anxiety-like behavior and cognitive impairment induced by acute restrictive stress and analyzed the alterations of the intestinal flora to explore the possible mechanism. Behavioral and cognitive tests, including open field test, elevated plus-maze test, novel object recognition test, and Barnes maze test, were performed. Intestinal gut Microbe 16S rRNA sequencing was analyzed. We found that intraperitoneal injection of Dex significantly improved acute restrictive stress-induced anxiety-like behavior, recognition, and memory impairment. After habituation in the environment, mice (male, 8 weeks, 18-23 g) were randomly divided into a control group (control, N = 10), dexmedetomidine group (Dex, N = 10), AS with normal saline group (AS + NS, N = 10) and AS with dexmedetomidine group (AS + Dex, N = 10). By the analysis of intestinal flora, we found that acute stress caused intestinal flora disorder in mice. Dex intervention changed the composition of the intestinal flora of acute stress mice, stabilized the ecology of the intestinal flora, and significantly increased the levels of Blautia (A genus of anaerobic bacteria) and Coprobacillus. These findings suggest that Dex attenuates acute stress-impaired learning and memory in mice by maintaining the homeostasis of intestinal flora.
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