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.
Abstract:
Sleep loss becomes a major problem in modern life and increases the incidence of anxiety disorders. Benzodiazepines are the most commonly used anxiolytic medications. Remimazolam is an ultra-short-acting benzodiazepine, which has been shown to reduce the preoperative anxiety levels in patients. However, the effects on anxiety-like behaviors caused by chronic sleep deprivation (CSD) and the underlying molecular mechanisms remain unclear. Here, we found that administration of remimazolam can effectively alleviate anxiety-like behaviors induced by CSD. Furthermore, remimazolam can significantly preserve the sleep deprivation-induced deficits in neuronal calcium activity in CA1 of the hippocampus. In addition, stimulator of interferon genes (STING) was activated in CA1 after CSD, while remimazolam was sufficient to block the activation of the STING pathway. Further study showed that inhibiting the activation of STING also effectively alleviates the anxiety symptoms induced by CSD. Overall, our research offers new insight and a promising therapeutic agent for the anxiety disorders caused by sleep deprivation.
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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