压力驱动骨髓形成,以损害动脉样硬化解决方案
Edward Fisher1, Ozlem Tufanli1, Bianca Scolaro1
1NYU Grossman School of Medicine.
Research square
|June 30, 2025
概括
心理压力降低了降胆固醇药物在治疗动脉样硬化的有效性. 这种压力诱导的斑块炎症可能解释了尽管使用了标准疗法,但仍然存在心血管疾病的残留风险.
科学领域:
- 心血管科学 心血管科学
- 免疫学 免疫学 免疫学
- 神经科学是一个神经科学.
背景情况:
- 动脉样硬化心血管疾病 (ASCVD) 是全球主要的死亡原因.
- 心理压力与ASCVD风险增加有关,但其对降脂治疗益处的影响尚不清楚.
- 动脉样硬化斑块内的炎症在ASCVD进展中起着关键作用.
研究的目的:
- 调查心理压力是否会降低动脉样硬化中降脂疗法的抗炎功效.
- 探索压力可能影响斑块炎症和治疗反应的机制.
- 将小鼠模型的发现与人类压力,脂质水平和炎症数据相关联.
主要方法:
- 结合了小鼠模型降低LDL胆固醇 (LDL-C) 与慢性社会失败压力 (CSDS) 模型.
- 在压力敏感 (SUS),压力弹性 (RES) 和对照 (CON) 小鼠中比较降低LDL-C的益处.
- 分析了斑块炎症,巨细胞特征和骨髓 (BM) 中的单细胞前体编程.
- 与人类成像数据对心理压力和对降低LDL-C治疗的反应相关的小鼠发现.
主要成果:
- 与对照或弹性小鼠相比,易受压力影响的小鼠从降低LDL-C中显著减少了益处.
- SUS小鼠表现出增高的斑块炎症,与骨髓中单细胞前体编程的改变有关.
- 人类研究反映了这些发现,显示较低效率的系统性和动脉炎症的减少与LDL-C降低在高心理压力的人.
结论:
- 心理压力会损害降脂药物的抗动脉样硬化作用.
- 由骨髓单细胞重编程引起的压力诱导的炎症,有助于降低治疗疗效.
- 慢性压力是ASCVD残留风险的一个重要因素,影响治疗结果.
相关概念视频
Atherosclerosis III: Management
41
Management of atherosclerosis involves an integrated strategy encompassing pharmacological treatment, surgical interventions, lifestyle changes, and nutrition therapy to address the multifactorial nature of the disease.Pharmacological TherapyA cornerstone of atherosclerosis management is the use of pharmacological agents. Statins, such as atorvastatin, are pivotal in inhibiting HMG-CoA reductase, an enzyme that catalyzes an initial step in cholesterol synthesis in the liver. This reduction in...
41
Atherosclerosis I: Introduction
93
Atherosclerosis is a progressive disorder characterized by the buildup of plaques on the arterial inner wall, causing them to narrow and harden over time. These plaques comprise lipids, calcium, blood components, carbohydrates, and fibrous tissue. The process primarily affects the intima of large and medium-sized arteries, reducing blood flow in any artery.Etiology and risk factorsThe cause of atherosclerosis is multifactorial, involving a complex interplay among endothelial injury, lipid...
93
Inflammation
55.4K
Overview
55.4K
Atherosclerosis IV: Nursing Management
61
Nursing management for a patient with arteriosclerosis involves a comprehensive approach focusing on lifestyle modification, disease monitoring, education, and symptomatic care. Here is an overview of effective nursing strategies:Assessment and Monitoring: Initial and ongoing assessments are crucial. Nurses must document the patient's medical history, including any hypertension, diabetes, hyperlipidemia, and other cardiovascular diseases. Assessments also cover family history and lifestyle...
61
Psychoneuroimmunology: Cardiovascular Disease
82
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...
82
Cholesterol: Significance and Regulation
697
Although not a source of energy, cholesterol plays a significant role as a foundational structure for bile salts, steroid hormones, and vitamin D, as well as being a crucial component of plasma membranes. Approximately 15% of blood cholesterol is derived from our diet, with the remainder synthesized from acetyl CoA by the liver and intestines. Cholesterol is eliminated from the body through its conversion into bile salts, which are eventually discarded in the feces.
Considering cholesterol and...
Considering cholesterol and...
697


