相关实验视频

Updated: Jun 16, 2025

Habituation and Prepulse Inhibition of Acoustic Startle in Rodents

Habituation and Prepulse Inhibition of Acoustic Startle in Rodents

Published on: September 1, 2011

服用抗精神病药物的预潜伏可以防止体外因基利丁介导的自发神经元网络抑制

Timo Jendrik Faustmann¹, Stephan Theiss², Philipp Görtz³

¹Department of Psychiatry and Psychotherapy, Medical Faculty, Heinrich Heine University, LVR Düsseldorf, Düsseldorf, Germany.

European journal of pharmacology

|June 8, 2025

概括

环丁 (PCP) 破坏神经网络活动,模仿精神病. 抗精神病药物 (APD) 如克洛扎宾和阿里皮拉提供了保护,这表明了精神分裂症药物发现的新模式.

科学领域:

神经科学是一个神经科学.
药理学药理学是指药理学的学科.
计算生物学计算生物学

背景情况:

环丁 (PCP) 是一种N-甲基-D-酸盐受体对抗剂,已知可诱导精神分裂症类精神病.
在动物中使用PCP复制了精神病的行为症状,包括认知缺陷.
研究PCP对神经网络的影响和潜在的抗精神病药物 (APD) 干预对于理解精神病至关重要.

研究的目的:

为了研究PCP对神经网络活动的体外影响.
评估典型和非典型抗精神病药物对PCP诱导的网络破坏的保护潜力.
为测试新型精神分裂症治疗方法建立一个电生理学模型.

主要方法:

在微电极阵列 (MEAs) 上培养了小鼠原发皮质细胞.
为PCP生成了度-响应曲线,测量了网络峰值率,爆发率,峰值发射率 (PFR) 和爆发持续时间.
在PCP暴露之前,细胞被预先用阿里皮普拉,克洛扎宾或哈洛佩里多尔进行化.

主要成果:

PCP的应用导致了网络活动的度依赖性抑制,减少了峰值率和PFR.
用APD进行预暴露会使PCP度-反应曲线向右移动,表明受到了保护.
非典型的APD (aripiprazole,clozapine) 比典型的APD (haloperidol,6倍) 显示出显著更高的保护功效 (20-30倍).

结论:

PCP以度依赖的方式破坏神经网络功能.
抗精神病药物,特别是非典型药物,可以保护神经网络免受PCP诱导的干扰.
这种基于MEA的模型为选精神分裂症谱系障碍的抗精神病药物提供了一个可行的平台.

关键词:

抗精神病药物抗精神病药物微电极阵列是一个微电极阵列.环丁 (Phencyclidine) 是一种类型的环丁.精神分裂症是一种精神分裂症.自发的神经网络活动自发的神经网络活动.

更多相关视频

Easy and Reproducible Low-Density Primary Culture using Frozen Stock of Embryonic Hippocampal Neurons

Easy and Reproducible Low-Density Primary Culture using Frozen Stock of Embryonic Hippocampal Neurons

Published on: January 27, 2023

Author Spotlight: Studying Drug Impacts on Brain Signals Using Dual LFP Recording Protocol in Mice

Author Spotlight: Studying Drug Impacts on Brain Signals Using Dual LFP Recording Protocol in Mice

Published on: February 16, 2024

相关概念视频

Antipsychotic Drugs: Typical and Atypical Agents

Antipsychotic Drugs: Typical and Atypical Agents

Antipsychotic drugs are classified into first-generation (typical) drugs including phenothiazines; and second-generation (atypical) drugs. Chlorpromazine hydrochloride (Thorazine), a phenothiazine derivative, broadly impacts the central, autonomic, and endocrine systems. This drug, along with typical agents like haloperidol (Haldol), primarily works by antagonizing D2 receptors, thus reducing dopaminergic neurotransmission. However, typical antipsychotics can cause side effects such as sedation...

Psychosis and Antipsychotic Drugs: Overview

Psychosis and Antipsychotic Drugs: Overview

The term "psychosis" refers to a spectrum of mental disorders characterized by abnormal thoughts, perceptions, and behaviors. It can manifest as mood disorders, dementia, delirium with psychotic features, substance-induced psychosis with psychotic features, brief psychotic disorder, delusional disorder, schizoaffective disorder, and schizophrenia. Among all these disorders, schizophrenia is the most common psychotic disorder, affecting 1% of the worldwide population. Psychotic...

Psychosis: Goals of Pharmacotherapy

Psychosis: Goals of Pharmacotherapy

Antipsychotic drugs are a crucial treatment method for acute and chronic psychoses, bipolar illness, and behavioral disorders. The selection of these drugs depends on several factors, including the state of the disease, clinical judgment, possible drug interactions, and the patient's sensitivity to adverse effects. In immediate scenarios, such as delirium and dementia, short-term treatment with low doses of high-potency typical or atypical agents can effectively manage symptom exacerbation.

Desensitization and Tachyphylaxis

Desensitization and Tachyphylaxis

Tachyphylaxis is described as a rapid decrease in response to a drug after repeated or continuous administration of the same drug dose. It is a phenomenon where the body becomes less responsive to a particular substance or intervention over time, requiring higher doses or stronger interventions to achieve the same effect. It results from adaptive changes in the body's receptors, signaling pathways, or physiological processes that occur in response to prolonged exposure to a stimulus.