BNST GABAergic神经元调节睡眠和麻醉的清醒状态
Mengyao Li1, Wen Li2,3, Shanshan Liang3
1Advanced Institute for Brain and Intelligence, School of Medicine, Guangxi University, Nanning, 530004, China.
Communications biology
|March 20, 2024
概括
终端细胞 (BNST) 床核中的GABAergic神经元调节从麻醉中唤醒和唤醒. 它们的活性在麻醉期间被抑制,但当它们被激活时会促进清醒,影响睡眠架构.
科学领域:
- 神经科学是一个神经科学.
- 睡眠研究 睡眠研究
- 麻醉学 麻醉学
背景情况:
- 对于睡眠-清醒和麻醉的神经回路尚未完全理解.
- 斑点终端细胞 (BNST) 床核中的GABAergic神经元已知在压力和恐惧中起作用,与兴奋有关.
研究的目的:
- 调查BNSTGABAergic神经元在调节睡眠-清醒和全身麻醉中的作用.
- 探索BNST-ventral tegmental area pathway在清醒和麻醉恢复中的参与. 为了探索BNST-ventral tegmental area pathway在清醒和麻醉恢复中的参与. 为了探索BNST-ventral tegmental area pathway在清醒和麻醉恢复中的参与.
主要方法:
- 在体内纤维光度与脑电图,肌电图和视频录制相结合.
- 光遗传激活和BNSTGABAergic神经元的慢性损伤.
- 调查了BNST-ventral tegmental area路径. 这是一个很好的例子.
主要成果:
- BNST GABAergic神经元显示了取决于兴奋状态的活性:在清醒和REM睡眠期间高,在麻醉期间被抑制.
- 光遗传激活促进了清醒和从麻醉中唤醒.
- 慢性病变改变了睡眠结构,但没有麻醉诱导/出现.
- BNST-ventral tegmental区域通路可能会促进清醒和麻醉恢复.
结论:
- BNST GABAergic神经元是清醒和从麻醉中唤醒的关键调节者.
- BNST-ventral tegmental区域通路与促进清醒和麻醉恢复有关.
- 这些发现有助于理解意识和开发新型麻醉剂.
相关概念视频
Sedatives and Hypnotics: Overview
359
Sedatives are drugs that alleviate anxiety, while hypnotics induce sleep. Both classes of medication suppress neuronal activity, leading to a calming effect for sedatives and facilitating sleep for hypnotics.
Sedative-hypnotics are categorized into barbiturates, benzodiazepines (BZDs), and non-benzodiazepines or Z-drugs. These drugs work by suppressing central nervous system activity, and this suppression is dose-dependent. Older sedative medications, like barbiturates, follow a linear curve in...
Sedative-hypnotics are categorized into barbiturates, benzodiazepines (BZDs), and non-benzodiazepines or Z-drugs. These drugs work by suppressing central nervous system activity, and this suppression is dose-dependent. Older sedative medications, like barbiturates, follow a linear curve in...
359
Sedatives and Hypnotics Drugs: Miscellaneous Agents
171
Sedatives and hypnotics encompass a wide range of substances, each with its unique mechanism of action, uses, and potential adverse effects.
Melatonin congeners like ramelteon (Rozerem) and tasimelteon (Hetlioz) selectively bind to melatonin receptors (MT1 and MT2) and thus mimic the actions of melatonin, a hormone that regulates sleep-wake cycles. Tasimelteon is primarily used for non-24-hour sleep-wake disorder, common in blind patients. They are also used to treat conditions like insomnia...
Melatonin congeners like ramelteon (Rozerem) and tasimelteon (Hetlioz) selectively bind to melatonin receptors (MT1 and MT2) and thus mimic the actions of melatonin, a hormone that regulates sleep-wake cycles. Tasimelteon is primarily used for non-24-hour sleep-wake disorder, common in blind patients. They are also used to treat conditions like insomnia...
171
CNS Depressants: Barbiturates and Benzodiazepines
262
CNS depressants include drugs from the category of barbiturates and benzodiazepines. They are valuable medications for managing anxiety disorders and insomnia. Barbiturates, once used to induce and maintain sleep, have been replaced mainly by benzodiazepines due to barbiturate's toxicity, tolerance, and overdose risks. They interact with GABAA receptors, leading to sedation at low doses and potentially coma and death at higher doses. Phenobarbital, a long-acting barbiturate, possesses...
262
General Anesthesia: Overview
216
Anesthesia is a medical procedure that uses drugs for CNS suppression to enable painless surgeries and procedures. The selection of anesthetics is influenced by their pharmacokinetic properties, side effects, and patient characteristics. Various types of anesthesia include general, local, regional, spinal, and inhalational.
General anesthesia induces unconsciousness in the whole body, while the others target specific areas or sensations. It is administered to minimize adverse effects, maintain...
General anesthesia induces unconsciousness in the whole body, while the others target specific areas or sensations. It is administered to minimize adverse effects, maintain...
216
Sedatives and Hypnotics Drugs: Barbiturates
269
Sedatives and hypnotics encompass a drug class that acts on the central nervous system (CNS) to alleviate anxiety, promote relaxation and induce sleep.These drugs function by amplifying the actions of the neurotransmitter γ-aminobutyric acid (GABA), resulting in reduced neuronal activity. Barbiturates, a subset of sedatives and hypnotics first synthesized in the late 1800s, are categorized into ultra-short, short, intermediate, and long-acting groups based on their duration of effect. A...
269
Functional Brain Systems: Reticular Formation
1.9K
The reticular formation is a complex network of gray and white matter located within the brainstem extending from the medulla to the midbrain.
Within the reticular formation, there are several distinct nuclei that can be classified into three broad categories. The Raphe nuclei are located along the midline of the brainstem. They are primarily known for their role in synthesizing and releasing serotonin, a neurotransmitter involved in regulating mood, appetite, sleep, and circadian rhythms. The...
Within the reticular formation, there are several distinct nuclei that can be classified into three broad categories. The Raphe nuclei are located along the midline of the brainstem. They are primarily known for their role in synthesizing and releasing serotonin, a neurotransmitter involved in regulating mood, appetite, sleep, and circadian rhythms. The...
1.9K


