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Chinese Journal of Clinicians(Electronic Edition) ›› 2025, Vol. 19 ›› Issue (08): 594-600. doi: 10.3877/cma.j.issn.1674-0785.2025.08.006

• Basic Science Research • Previous Articles    

Cannabidiol counteracts caffeine-induced sleep inhibition in mice

Xiaopeng Jia1, Jingcao Li2, Ruiqing Tang1, Shuo Li2, Rui Xue2, Qiongyin Fan2, Yang Zhang2, Youzhi Zhang2,(), Zhenggang Guo1,3,()   

  1. 1 Department of Anesthesiology, The Second Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, China
    2 Academy of Military Medical Sciences, Beijing 100850, China
    3 Department of Anesthesiology, Peking University Shougang Hospital, Beijing 100144, China
  • Received:2025-08-29 Online:2025-08-30 Published:2025-12-30
  • Contact: Youzhi Zhang, Zhenggang Guo

Abstract:

Objective

To investigate whether cannabidiol (CBD) has an antagonistic effect on caffeine (CAF)-induced sleep inhibition in mice.

Methods

A pentobarbital sodium synergistic hypnosis test was used to observe the effects of different doses of CAF on sleep duration in normal mice and to evaluate the regulatory effect of CBD on CAF-induced sleep inhibition. A spontaneous activity video analysis system was employed to assess the effects of CAF and CBD on autonomous locomotor behavior in mice. Serum adenosine levels were measured using a mouse adenosine detection kit (Enzyme-Linked Immunosorbent Assay, ELISA), and hypothalamic glutamate content was detected by High Performance Liquid Chromatography (HPLC).

Results

CAF (40 mg/kg) significantly prolonged sleep latency (P<0.001) and shortened sleep duration (P<0.01) in mice, whereas CBD (10 mg/kg) significantly shortened sleep latency (P<0.001) and prolonged sleep duration (P<0.001). In the CAF (10 mg/kg) group, the total distance traveled by mice increased (P<0.05), the average speed accelerated (P<0.05), and the time spent in the central area prolonged (P<0.05). After CBD (10 mg/kg) intervention, the total distance traveled decreased (P<0.01), the average speed slowed (P<0.01), and the time spent in the central area shortened (P<0.001). The hypothalamic glutamate content increased (P<0.001) and serum adenosine levels also significantly rose (P<0.01) in the CAF (40 mg/kg) group. CBD (10 mg/kg) treatment significantly reduced both glutamate (P<0.001) and adenosine (P<0.001) levels.

Conclusion

CAF disrupts normal sleep in mice and induces abnormalities in glutamate and adenosine levels; CBD counteracts these CAF-induced sleep disturbances and normalizes the neurochemical alterations.

Key words: Cannabidiol, Caffeine, Sleep inhibition, Glutamate, Adenosine

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