补充剂C5a受体信号改变应激反应,并调节长期应激暴露后的微质
Hsiao-Jou Cortina Chen1,2, Jereme G Spiers3,4,5, Titaya Lerskiatiphanich1
1School of Biomedical Sciences, the University of Queensland, St. Lucia, Brisbane, Queensland, Australia.
Biological psychiatry global open science
|April 17, 2024
概括
补充系统是补充系统.
科学领域:
- 神经科学是一个神经科学.
- 免疫学 免疫学 免疫学
- 内分泌学 在内分泌学.
背景情况:
- 炎症在与压力相关的疾病中起着关键作用.
- 补体系统的C5a-C5aR1通路参与炎症.
- 目前尚不清楚C5a-C5aR1在应激反应中的作用.
研究的目的:
- 研究C5a-C5aR1信号在应激反应中的作用.
- 确定C5aR1缺乏在压力期间对行为,荷尔蒙,代谢和炎症参数的影响.
主要方法:
- 鼠标受到急性和慢性压力模式的影响.
- 测量了循环中的C5a水平和C5aR1mRNA表达.
- 用C5aR1缺乏的小鼠来评估中断信号传输的影响.
主要成果:
- 慢性压力增加了C5a水平,改变了C5aR1的表达.
- 缺乏C5aR1调节了荷尔蒙反应和应激弹性.
- 缺乏C5aR1的小鼠表现出改变的代谢平衡和减少压力诱导的神经炎症.
结论:
- 在压力期间,C5a-C5aR1信号传递是重要的代谢调节器.
- 补充激活和C5aR1功能障碍可能导致压力障碍中的神经炎症.
- C5aR1代表了与压力相关的疾病的潜在治疗标.
相关概念视频
Stress and Mental Health
149
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...
149
Psychoneuroimmunology: Cardiovascular Disease
30
Psychoneuroimmunology (PNI) is a multidisciplinary field that examines how psychological factors, particularly stress, interact with the immune system and impact physical health. Research in PNI has shown that chronic or traumatic stress can disrupt both the hypothalamic-pituitary-adrenal axis and the sympathetic nervous system. These disruptions contribute to serious health conditions, including cardiovascular diseases.
A key area of focus in PNI is the relationship between stress and coronary...
A key area of focus in PNI is the relationship between stress and coronary...
30
Psychoneuroimmunology: Diabetes and Cancer
28
Chronic stress has been linked to both the onset and progression of serious health conditions, including Type 2 diabetes and cancer. Type 2 diabetes, a widespread chronic illness, is closely associated with obesity and insulin resistance, both of which often worsen under stress. Studies indicate that men experiencing high levels of chronic stress face a 45% higher risk of developing diabetes compared to those with minimal stress. Stress triggers physiological responses that elevate blood...
28
Physiological Foundation of Stress
56
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...
56
Psychological Responses to Stress
54
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...
54
Inflammatory Response
2.0K
An inflammatory response is a localized, nonspecific immune reaction that occurs when a tissue is injured. It is characterized by redness, swelling, heat, and pain, which are commonly called the cardinal signs and symptoms of inflammation. Inflammation can sometimes result in a loss of function.
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
2.0K


