相关实验视频
Updated: Feb 17, 2026

03:48
Restraint to Induce Stress in Mice and Rats
Published on: December 6, 2024
3.5K
上腺素的应激反应与人体中富含脂质的冠状动脉脂肪表型有关:一个横截面研究
Roland von Känel1, Tobia Albertini2, Sarah A Holzgang1
1Department of Consultation-Liaison Psychiatry and Psychosomatic Medicine, University Hospital Zurich, University of Zurich, Zurich, Switzerland.
Journal of applied physiology (Bethesda, Md. : 1985)
|February 16, 2026
概括
通过增加上腺素 (NE) 测量的急性交感应激反应性与富含脂质的冠状周脂肪组织 (PCAT) 现型有关. 这表明NE应激反应可能表明早期冠状动脉脆弱性.
科学领域:
- 心血管成像 - 心血管成像
- 神经内分泌学神经内分泌学
- 生物标志物 生物标志物
背景情况:
- 在冠状动脉计算机断层扫描血管学 (CCTA) 上,冠状动脉周周脂肪组织 (PCAT) 衰减反映了冠状动脉炎症.
- 交感激活和上腺素 (NE) 可能会影响周周血管脂肪组织 (PVAT) 组成.
- 对于NE应激反应,PVAT表型和慢性压力之间的关系尚不清楚.
研究的目的:
- 调查NE应激反应和PCAT减弱之间的关联.
- 探索慢性压力 (临床倦怠) 是否会改变这种关系.
主要方法:
- 60名男性医生 (30名燃烧,30名对照) 接受了CCTA进行PCAT评估.
- 用特里尔社会压力测试诱导心理社会压力.
- 血NE水平在多个时间点测量以评估应激反应性 (相对增加,绝对增加,NE AUC-I,NE AUC-G).
主要成果:
- 较大的相对NE压力增加与较低的PCAT总衰减独立相关 (部分r2=0.12,p=0.010).
- 每一个10%的相对NE增加与大约1HU较低的PCAT减弱相关.
- 较高的绝对NE增加和NE AUC-I也显示出与较低的PCAT衰减有显著的关联,而NE AUC-G则没有.
结论:
- 通过NE增加表明的急性交感应激反应性与富含脂质的PVAT表型 (较低的PCAT衰减) 有关.
- 这支持PVAT对上腺刺激的反应能力.
- 升高的NE应激反应性可能作为冠状动脉脆弱性的早期生物标志物.
相关概念视频
Psychoneuroimmunology: Cardiovascular Disease
590
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...
590
Introduction to Stress and Lifestyle
666
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...
666
Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers
619
Cardiac biomarkers are critical in diagnosing, prognosing, and managing cardiovascular diseases. Routine measurement of specific biomarkers such as B-type natriuretic peptide (BNP), C-reactive protein (CRP), and homocysteine (Hcy) is common practice in clinical settings to evaluate heart function and predict cardiovascular events.
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
619
Coronary Artery Disease I: Introduction
1.2K
Coronary Artery Disease (CAD): An Overview with Scientific InsightsCoronary Artery Disease (CAD), often referred to as C-A-D, is a prevalent blood vessel disorder classified under the broader category of atherosclerosis. Atherosclerosis is a pathological process characterized by the hardening and narrowing of arteries due to the accumulation of atherosclerotic plaques. These plaques are composed of cholesterol, fatty substances, inflammatory cells, calcium, and fibrin, reducing blood flow to...
1.2K
Physiological Foundation of Stress
734
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...
734
Adrenergic Receptors: β Subtype
3.9K
β-adrenoceptors have varied sensitivities towards adrenaline, noradrenaline, and isoprenaline. The order of agonist potency is as follows:
Isoprenaline > Adrenaline > Noradrenaline
Neurotransmitter binding to these receptors causes activation of adenylyl cyclase resulting in increased concentrations of cAMP and modulation of calcium ion channels within the cell. They are further classified into β1, β2, and β3 subtypes.
β1-adrenoceptors: β1-adrenoceptors...
Isoprenaline > Adrenaline > Noradrenaline
Neurotransmitter binding to these receptors causes activation of adenylyl cyclase resulting in increased concentrations of cAMP and modulation of calcium ion channels within the cell. They are further classified into β1, β2, and β3 subtypes.
β1-adrenoceptors: β1-adrenoceptors...
3.9K

