前额前-桃体-海马体网络中的神经炎症与不适应的回避行为有关
Geiza Fernanda Antunes1, Flavia Venetucci Gouveia1,2, Mayra Akemi Kuroki1
1Division of Neuroscience, Hospital Sirio-Libanes, Sao Paulo, Brazil.
Heliyon
|May 2, 2024
概括
在老鼠中,不适应的避开行为与大脑中不同的神经炎症模式有关. 具体来说,与适应性回避 (AA) 相比, maladaptive avoidance (MA) 显示杏仁体中的炎症标志物增加.
科学领域:
- 神经科学是一个神经科学.
- 精神病学是一个精神病学.
- 行为科学 行为科学
背景情况:
- 不适应性回避行为是焦虑和创伤相关疾病的标志.
- 前额桃体-海马体网络对于学习,记忆和情绪调节至关重要.
- 这个网络中的神经炎症会破坏它的功能,导致不适应性行为.
研究的目的:
- 调查不同的神经炎症模式是否区分自适应性回避 (AA) 与不适应性回避 (MA) 在大鼠模型中.
- 为了确定与不适应性回避行为相关的特定神经炎症标志物.
主要方法:
- 威斯塔大鼠接受了八项试验的双向活性回避试验.
- 动物根据他们的行为反应被分为AA或MA.
- 神经炎症标志物 (细胞,EAAT-2,IL-1β,IL-17,TNF-ɑ) 在前额-桃体-海马体网络后测试中被分析.
主要成果:
- 在AA和MA组之间观察到明显的神经炎症模式.
- 与AA组相比,MA组在杏仁体中表现出显著增加的星细胞,EAAT-2,IL-1β,IL-17和TNF-ɑ水平.
- 这些发现表明,与不适应性回避相关的特定的神经炎症特征.
结论:
- 杏仁体中的独特的神经炎症模式标志着不适应的回避行为.
- 这种模式涉及炎症标志物增加,可能会导致恐惧反应和不适应性回避.
- 用抗炎药物向杏仁核神经炎症可能是精神疾病的潜在治疗策略,涉及不适应性回避.
更多相关视频
10:43Developing Neuroimaging Phenotypes of the Default Mode Network in PTSD: Integrating the Resting State, Working Memory, and Structural Connectivity
Published on: July 1, 2014
15.1K
09:26A Novel Pavlovian Fear Conditioning Paradigm to Study Freezing and Flight Behavior
Published on: January 5, 2021
6.7K
相关概念视频
01:15Functional Brain Systems: Limbic System
2.6K
The limbic system, often called the "emotional brain," is a complex set of structures located deep within the brain. The intricate network of the limbic system supports a wide range of psychological functions, from emotional regulation to memory formation and sensory processing. This functional brain region encompasses specific parts of the diencephalon and the cerebrum, integrating the higher mental functions of the cerebral cortex with the primitive emotional responses of the deep brain...
2.6K
01:16Role of Amygdala in Memory
210
The amygdala is a small, almond-shaped structure responsible for processing and storing memories, particularly those linked to emotions like fear and stress. It plays an essential role in the brain's response to emotionally significant events and often enhances memory formation by triggering stress hormone release. The amygdala is vital for encoding and retrieving memories associated with fear or stress, a process that is adaptive by helping organisms avoid dangerous situations.
One of the...
One of the...
210
01:14Avoidance Learning and Learned Helplessness
1.7K
Avoidance learning and learned helplessness are critical concepts in understanding behavioral responses to negative stimuli.
Avoidance learning occurs when an organism learns that a specific behavior can prevent an unpleasant outcome. For example, a student who receives a bad grade may start studying harder to avoid future poor grades. This behavior persists even when the negative outcome is no longer present. Avoidance learning is powerful because it maintains behavior in the absence of the...
Avoidance learning occurs when an organism learns that a specific behavior can prevent an unpleasant outcome. For example, a student who receives a bad grade may start studying harder to avoid future poor grades. This behavior persists even when the negative outcome is no longer present. Avoidance learning is powerful because it maintains behavior in the absence of the...
1.7K
01:28Social Anxiety Disorder
33
Social anxiety disorder, also known as social phobia, is characterized by an intense fear of social situations where one might face humiliation, rejection, embarrassment, or negative evaluation. This disorder leads individuals to avoid activities like casual conversations, public speaking, or seemingly simple tasks such as eating, signing documents, or swimming, in public settings. Its impact extends beyond discomfort, often significantly interfering with daily functioning and quality of life.
33