动脉血性心血管疾病中的HDL功能和组成,具有非常高的HDL-C
Teresa Padro1,2, Natàlia Muñoz-García1, Marta Fanlo-Maresma3,4
1Institut Recerca Sant Pau, Barcelona, Spain.
European journal of clinical investigation
|December 18, 2025
概括
非常高的HDL-C水平矛盾地增加了心血管疾病的风险. 在具有非常高的HDL-C的个体中,改变的HDL组成和功能障碍,而不仅仅是HDL-C水平,与动脉样硬化心血管疾病 (ASCVD) 有关.
科学领域:
- 心血管医学 心血管医学
- 脂质代谢 脂质代谢是什么
- 生物化学 生物化学
背景情况:
- 新出现的证据表明,高密度脂蛋白胆固醇 (HDL-C) 和动脉样硬化心血管疾病 (ASCVD) 之间存在J形关系.
- 非常高的HDL-C度 (>80 mg/dL) 矛盾地与ASCVD事件的增加有关.
- 在具有非常高的HDL-C和ASCVD的个体中,HDL的组成和功能需要进一步研究.
研究的目的:
- 为了确定具有非常高的HDL-C (>80 mg/dL) 和ASCVD的个体是否表现出改变的HDL组成.
- 在具有非常高的HDL-C和ASCVD的个体中评估HDL功能.
- 为了探索HDL特征与心血管风险之间的关系,在这个人群中.
主要方法:
- 研究了49名具有非常高HDL-C (>80 mg/dL) 的受试者的HDL概况和功能,其中23名患有ASCVD.
- 评估了血中异性质脂蛋白-胆固醇水平,胆固醇外流能力 (CEC),抗氧化潜力和氧化水平.
- 利用核磁共振 (NMR) 进行高密度液体颗粒大小分析和基于细胞的内皮增殖测试.
主要成果:
- 与非ASCVD患者相比,ASCVD患者的血清性脂蛋白胆固醇水平较低,但基础性HDL氧化水平较高.
- 在ASCVD的参与者中,CEC降低,大型HDL颗粒的百分比较低,小颗粒的数量越来越多.
- 在ASCVD患者中,高密度胆固醇功能测定显示了减弱的内皮增殖,特别是在更大的高密度胆固醇颗粒中.
结论:
- 高密度胆固醇的功能和颗粒分布提供了比单独的高密度胆固醇-C度更具临床相关性的心血管风险见解.
- 改变的HDL组成,包括增加氧化和减少CEC,有助于心血管风险在个体具有非常高的HDL-C.
- 这些发现强调了评估HDL质量的重要性,而不仅仅是风险分层的数量.
相关概念视频
Blood Studies for Cardiovascular System III: Serum Lipid Profile
534
Understanding serum lipids is crucial for maintaining cardiovascular health and preventing heart disease and stroke.
Serum lipids are fats and fatty substances in the blood and are crucial for various bodily functions, including energy storage, cellular structure, and hormone production. Serum lipids consist of cholesterol, triglycerides, and phospholipids.
Cholesterol is a soft, fat-like substance found in all body cells. It is crucial for producing hormones, vitamin D, and substances that aid...
Serum lipids are fats and fatty substances in the blood and are crucial for various bodily functions, including energy storage, cellular structure, and hormone production. Serum lipids consist of cholesterol, triglycerides, and phospholipids.
Cholesterol is a soft, fat-like substance found in all body cells. It is crucial for producing hormones, vitamin D, and substances that aid...
534
Atherosclerosis III: Management
293
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...
293
Cholesterol: Significance and Regulation
1.2K
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...
1.2K
Atherosclerosis I: Introduction
795
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...
795
Lipid-Lowering Drugs: Statins and Miscellaneous Agents
1.3K
Hyperlipidemia, a medical condition often referred to as high cholesterol, is characterized by abnormally elevated levels of lipids in the bloodstream. When present in excess, these lipids, specifically cholesterol and triglycerides, can lead to serious health complications, often involving cardiovascular diseases. Illnesses like atherosclerosis, heart attacks, and pancreatitis have all been linked to untreated hyperlipidemia. This means controlling and regulating cholesterol and triglyceride...
1.3K
Coronary Artery Disease IV: Preventive Measures
572
Effective preventive measures for coronary artery disease (CAD) focus on controlling modifiable risk factors, including cholesterol abnormalities and lifestyle changes.Cholesterol ManagementFirst, the Mediterranean diet and the American Heart Association advocate for maintaining low-density lipoprotein (LDL) cholesterol levels below 100 mg/dL, with a more stringent recommendation of below 70 mg/dL for individuals at high risk. LDL cholesterol, often termed "bad cholesterol," can lead to the...
572


