相关实验视频
Updated: May 17, 2025

03:48
Restraint to Induce Stress in Mice and Rats
Published on: December 6, 2024
836
性和压力的相互作用在调节腹部体区域的多巴胺活性方面
Kailyn M Price1, Abigail M Polter1
1Department of Pharmacology and Physiology, George Washington University School of Medicine and Health Sciences, Washington, DC 20037.
Current opinion in behavioral sciences
|May 14, 2025
概括
腹部体区域 (VTA) 的多巴胺神经元对男性和女性的压力有不同的反应. 这些神经元的经验依赖性变化显示出显著的性别差异,影响压力反应.
科学领域:
- 神经科学是一个神经科学.
- 神经生物学 神经生物学 神经生物学
- 行为科学 行为科学
背景情况:
- 腹部体区域 (VTA) 多巴胺 (DA) 神经元对于奖励处理和目标导向行为至关重要.
- 新出现的证据突出了它们在处理厌恶刺激和与压力相关的行为中的作用.
- 从历史上看,对VTA DA神经元的研究主要涉及男性受试者.
研究的目的:
- 审查有关VTA DA神经元功能的性别差异的当前文献.
- 为了探索基线和压力诱导的变化在性别之间的VTA DA神经元.
- 讨论这些性别差异对VTA功能和应激反应的影响.
主要方法:
- 对调查男性和女性受试者的VTA DA神经元的研究进行文献综述.
- 对VTA DA神经元的结构和功能特性数据的分析.
- 检查经验依赖的可塑性和与压力相关的变化.
主要成果:
- 在VTA DA神经元中观察到最小的基底结构和功能性差异.
- 在VTA DA神经元中,经验依赖的变化在男性和女性之间表现出显著的差异.
- 暴露在压力中显示出每个性别的VTA DA神经元调制的不同模式.
结论:
- 在VTA DA神经元可塑性的性别差异对于理解各种应激反应至关重要.
- 未来的研究应该将性别作为一个生物学变量,以阐明VTA功能.
- 了解这些基于性别的区别对于开发针对性治疗策略来治疗与压力相关的疾病至关重要.
相关概念视频
The Sympathetic Nervous System
94.0K
Overview
94.0K
Introduction to Stress and Lifestyle
53
Stress is a multifaceted response to events perceived as challenging or threatening, highlighting physical, emotional, cognitive, and behavioral reactions. Physically, stress can lead to fatigue, sleep disruptions, and various health issues such as frequent colds, chest pains, and nausea. Emotionally, it can manifest as anxiety, depression, irritability, and anger triggered by both minor and major life events. Cognitively, it may result in difficulty in concentration, memory, and...
53
Psychological Responses to Stress
29
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...
29
Stress and Mental Health
65
Chronic stress profoundly affects mental health, significantly influencing mood, behavior, and overall quality of life. Research closely links chronic stress with mental health conditions such as depression, anxiety, and substance use disorders. Ongoing exposure to stress can lead to physiological and psychological changes, initiating a cycle of emotional distress and maladaptive coping mechanisms.
Individuals with depression often experience challenges in both their personal and professional...
Individuals with depression often experience challenges in both their personal and professional...
65
Hypothalamic-Pituitary Axis
58.6K
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.
58.6K
Drugs Affecting Neurotransmitter Release or Uptake
896
Certain drugs can affect how neurotransmitters called catecholamines, are released or taken back up in the adrenergic neuron. They can have different effects on the body's sympathetic transmission. Reserpine, a natural compound found in the Rauwolfia shrub, blocks a transporter called vesicular monoamine transporter (VMAT), which leads to a buildup of catecholamines in the cell and reduces sympathetic transmission. Another drug called guanethidine works in multiple ways, including blocking...
896

