Remimazolam alleviates sleep deprivation induced anxiety-like behaviors via regulating the STING pathway

Jun Fan1, Jumian Feng1, Lin Yang1

  • 1Department of Anesthesiology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou, China.

Neuroscience Letters
|December 26, 2024
PubMed

Insights

Remimazolam effectively reduces anxiety caused by chronic sleep deprivation (CSD) by preserving neuronal activity and blocking the STING pathway. This offers a new therapeutic approach for sleep deprivation-induced anxiety disorders.

Area of Science:

  • Neuroscience
  • Pharmacology
  • Sleep Medicine

Background:

  • Sleep loss is a prevalent issue linked to increased anxiety disorders.
  • Benzodiazepines are common anxiolytics, with remimazolam showing promise for preoperative anxiety.
  • The impact of remimazolam on chronic sleep deprivation (CSD)-induced anxiety and its mechanisms are not fully understood.

Purpose of the Study:

  • To investigate the efficacy of remimazolam in alleviating anxiety-like behaviors induced by CSD.
  • To explore the molecular mechanisms underlying remimazolam's effects on CSD-induced anxiety.
  • To determine if the STING pathway is involved in CSD-induced anxiety.

Main Methods:

  • Administration of remimazolam to rodents subjected to chronic sleep deprivation.
  • Assessment of anxiety-like behaviors.
  • Measurement of neuronal calcium activity in the hippocampal CA1 region.
  • Analysis of STING pathway activation in the hippocampus.

Main Results:

  • Remimazolam administration significantly alleviated anxiety-like behaviors in CSD rodents.
  • Remimazolam preserved neuronal calcium activity deficits in the hippocampal CA1 region caused by CSD.
  • CSD activated the STING pathway in the hippocampus, an effect blocked by remimazolam.
  • Inhibiting STING activation also reduced CSD-induced anxiety.

Conclusions:

  • Remimazolam is a potential therapeutic agent for anxiety disorders stemming from sleep deprivation.
  • The STING pathway in the hippocampus plays a crucial role in CSD-induced anxiety.
  • This study provides novel insights into the neurobiological basis of sleep deprivation-related anxiety.

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