相关实验视频
Updated: May 7, 2025

03:48
Restraint to Induce Stress in Mice and Rats
Published on: December 6, 2024
774
在应力动态过程中,侧面 Habenula 中的厌恶价值的输入-输出特定编排
Taida Huang1,2,3,4, Xiaonan Guo2, Xiaomin Huang4
1Department of Neurology and International Institutes of Medicine, the Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu 322000, China.
Journal of Zhejiang University. Science. B
|January 1, 2025
概括
压力会通过改变大脑电路,特别是侧面大脑管 (LHb) 来诱导抑郁症. 这篇评论探讨了LHbb如何进行LHb.
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.
- 分子生物学分子生物学
背景情况:
- 压力是抑郁症的重要危险因素,导致大脑区域和神经回路的功能障碍.
- 侧面大脑 (LHb) 是一个关键的大脑中心,在压力积累期间处理厌恶信息,这与抑郁症的发病有关.
研究的目的:
- 描述一个框架,说明侧面的 habenula (LHb) 如何通过其输入-输出特定的神经元架构编排厌恶的价值.
- 阐明LHb中心神经回路在压力诱导的抑郁症状状态的进展期间的时空动态.
主要方法:
- 对横向大脑 (LHb) 功能,压力和抑郁症现有文献的综述.
- 神经元架构的分析,包括次区域特异性 (LHbM,LHbL) 和下游预测.
- 在慢性压力背景下,检查可塑性机制,如Hebbian可塑性.
主要成果:
- 侧面大脑管 (LHb) 通过不同的上游输入到其中间 (LHbM) 和侧面 (LHbL) 亚区域来整合厌恶价值.
- 从LHb子区域到中脑点的可分离投影可以为厌恶价值赋值创建反循环.
- 在压力下LHb的生理Hebbian可塑性导致输入特定的神经元过活,编码压力和驱动抑郁症发作.
结论:
- 侧面囊 (LHb) 通过其特定的神经元结构和可塑性,在压力诱导的抑郁症中起着至关重要的作用.
- 了解LHb电路动态为早期干预和向抗抑郁药物治疗提供了潜力.
- 对LHb电路的未来研究对于开发新型抑郁症治疗策略至关重要.
更多相关视频
相关概念视频
Hypothalamic-Pituitary Axis
58.2K
The response to stress—be it physical or psychological, acute or chronic—involves activation of the Hypothalamic-Pituitary-Adrenal (HPA) axis. The HPA axis is part of the neuroendocrine system because it involves both neuronal and hormonal communication. Its function is to regulate homeostatic systems—metabolic, cardiovascular, and immune—providing the necessary means to respond to a stressor.
58.2K
Physiological Foundation of Stress
13
Stress triggers a coordinated physiological response involving the sympathetic nervous system (SNS) and the hypothalamic-pituitary-adrenal (HPA) axis. This dual activation ensures that the body is prepared for both immediate and prolonged stress management. The process begins with the perception of a stressor. This initial phase activates the SNS, leading to the rapid release of adrenaline (epinephrine) from the adrenal glands.
Role of the Sympathetic Nervous System
Adrenaline triggers the...
Role of the Sympathetic Nervous System
Adrenaline triggers the...
13
Psychological Responses to Stress
14
Psychological responses to stress encompass the various cognitive and emotional reactions individuals experience when faced with challenging or threatening situations, such as a job loss. Prolonged exposure to stressors can disturb emotional balance, increasing negative emotions (e.g., anxiety and sadness) and diminishing positive emotions (e.g., joy and satisfaction). These persistent emotional shifts are associated with an increased risk of both physical illness and mental health issues, such...
14
Stress Response System
24
The stress response system, also known as the fight-or-flight response, is the body's automatic physiological reaction to perceived threats. Hans Selye introduced the concept of General Adaptation Syndrome (GAS) to describe the predictable pattern of changes that occur in response to stress. GAS consists of three sequential stages: alarm, resistance, and exhaustion. This model helps explain how chronic stress can contribute to health problems.
Alarm stage
In the alarm stage, the body's...
Alarm stage
In the alarm stage, the body's...
24
Components of Stress
189
Stress analysis under multiple loading conditions is intricate, necessitating a comprehensive grasp of normal and shearing stresses. Consider a small cube at point O, subjected to stress on all six faces, visible or not. Normal stress components σx, σy, σz act perpendicularly to the x, y, and z axes. Shearing stress components τxy and τxz are exerted on faces perpendicular to these axes.
Interestingly, the hidden cube faces also experience these stresses, equal and...
Interestingly, the hidden cube faces also experience these stresses, equal and...
189
Role of Amygdala in Memory
74
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...
74

