从神经毒性到神经保护:重新思考GABAAR向麻醉剂
Yubao Li1,2, Hongliang Yang1,2, Lu Liu2,3
1Xinxiang Medical University, Xinxiang, Henan, China.
Cell biology and toxicology
|June 14, 2025
概括
麻醉剂在关键生长时期会损害发育中的大脑,影响学习和记忆. 需要神经保护策略来保护大脑发育免受麻醉引起的神经毒性.
科学领域:
- 神经科学是一个神经科学.
- 发展生物学 发展生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 大脑增长冲刺 (BGS) 是一个关键的神经发育时期,其特点是神经快速发育和可塑性.
- 这种增强的可塑性增强了学习,但也增加了对中断的脆弱性,包括麻醉剂的暴露.
- 麻醉剂,特别是那些对GABAA受体起作用的麻醉剂,可以干扰关键的神经发育过程.
研究的目的:
- 为了研究麻醉剂在大脑成长期间对发育中的大脑产生的神经毒性作用.
- 探索麻醉诱导的神经毒性背后的机制,包括对神经递质系统,神经营养因子和细胞应激通路的影响.
- 确定潜在的神经保护策略和治疗干预措施.
主要方法:
- 关于麻醉神经毒性和神经发育的现有文献的综述.
- 对麻醉剂对GABAergic和glutamatergic系统的影响的分析.
- 对麻醉剂对来自大脑的神经营养因子 (BDNF) 信号传递,质细胞激活,氧化应激和平衡的影响的检查.
主要成果:
- 麻醉剂会破坏GABAergic和glutamatergic系统,损害BDNF信号传递,并诱导神经炎症,氧化应激和内分泌网膜应激.
- 麻醉剂暴露会改变非编码RNA的表达,可能会影响基因调节和长期记忆.
- 神经毒性的严重程度取决于麻醉时间,剂量,频率和个体易感性,与长期认知功能障碍有关.
结论:
- 麻醉剂在大脑急剧增长期间对神经发育构成重大风险,影响认知功能.
- 神经活性类固醇通过调节GABAAR活性和减少氧化应激,显示出神经保护的前景.
- 开发优化的麻醉策略和探索新型神经保护剂对于保护发育中的大脑神经完整性至关重要.
更多相关视频
07:51Inhibitory Synapse Formation in a Co-culture Model Incorporating GABAergic Medium Spiny Neurons and HEK293 Cells Stably Expressing GABAA Receptors
Published on: November 14, 2014
17.4K
07:16Methods for the Discovery of Novel Compounds Modulating a Gamma-Aminobutyric Acid Receptor Type A Neurotransmission
Published on: August 16, 2018
13.6K
相关概念视频
Antiepileptic Drugs: GABAergic Pathway Potentiators
351
γ-aminobutyric acid or GABA, plays a pivotal role as an inhibitory neurotransmitter in the brain. GABA pathway potentiators, also known as GABAergic drugs, are a class of pharmaceutical agents designed to enhance the functioning of the GABAergic system. These medications primarily treat epilepsy, a neurological disorder characterized by recurrent seizures.
The key GABA pathway potentiators used in epilepsy management are as follows.
Benzodiazepines are a well-known class of drugs used for...
The key GABA pathway potentiators used in epilepsy management are as follows.
Benzodiazepines are a well-known class of drugs used for...
351
Local Anesthetics: Adverse Effects
399
While local anesthetics are generally safe and well-tolerated, they can occasionally cause adverse effects that vary in severity. Local anesthetics can induce toxicity at two distinct levels. They can either produce local effects through direct contact with the neural elements or be absorbed into the bloodstream from the injection site, leading to systemic effects.
Once absorbed into the systemic circulation, local anesthetics can affect the organs that depend on the functioning of sodium...
Once absorbed into the systemic circulation, local anesthetics can affect the organs that depend on the functioning of sodium...
399
Parenteral Anesthetics: Overview
111
Intravenous anesthetics are drugs administered parenterally to induce anesthesia or sedation. Propofol is a widely used agent formulated as a 1% emulsion in soybean oil, glycerol, and egg phosphatide. It induces rapid anesthesia primarily due to its rapid distribution from the bloodstream to target tissues and is metabolized in the liver. However, it can cause significant pain on injection and hypertriglyceridemia. Fospropofol, a water-based prodrug of propofol, lacks these adverse effects.
111
General Anesthesia: Overview
199
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...
199
Antiepileptic Drugs: Glutamate Antagonists
301
Glutamate is a fundamental neurotransmitter in the central nervous system, playing a vital role in neuronal communication and various cognitive processes. Glutamate stands as the principal excitatory neurotransmitter in the brain. Its presence is crucial for the communication between neurons, underpinning essential processes such as synaptic transmission, neuronal excitability, and plasticity. These functions are vital for higher-order cognitive processes, including learning and memory. The...
301
Ligand-Gated Ion Channel Receptor: Gating Mechanism
2.2K
Ligand-gated ion channels are transmembrane proteins that play a vital role in intercellular communication and functions of the nervous system. They allow the influx of ions across the membrane once the neurotransmitter binds, allowing the subsequent transmission of electrical excitation across the neurons. Other ligand-gated ion channels, like the γ-aminobutyric acid (GABA) receptor, permit anions like chloride into the cells on the binding of the GABA molecule. Their entry into the cell...
2.2K
