心血管疾病中的高密度脂蛋白:从大量到高质量
Yifang Zhang1, Mengyao Yu1, Yan Chen2
1Department of Pathophysiology, Institute of Cardiovascular Disease, Key Lab for Arteriosclerology of Hunan Province, International Joint Laboratory for Arteriosclerotic Disease Research of Hunan Province, Hengyang Medical School, University of South China, Hengyang, China.
概括
高密度脂蛋白 (HDL) 的功能, 不仅仅是胆固醇水平, 是心脏健康的关键. 评估HDL的情况
科学领域:
- 心血管科学
- 脂肪新陈代谢
- 生物化学
背景情况:
- 高密度脂蛋白 (HDL) 对于逆胆固醇输送 (RCT) 和心血管保护至关重要.
- 低HDL胆固醇 (HDL- C) 与心血管风险相关,但提高HDL- C的疗法未能减少事件.
- HDL-C与死亡率之间的U形关系表明功能障碍, 不仅仅是度, 是至关重要的.
研究的目的:
- 审查证据,将重点从HDL-C水平转移到HDL功能,以评估心血管风险.
- 突出HDL的关键功能指标,包括胆固醇流量 (CEC),颗粒数 (HDL-P) 和子类异质性.
- 倡导研究优先提高HDL功能,而不是仅仅增加度.
主要方法:
- 综合了有关HDL功能和心血管风险的现有证据.
- 对HDL-C,CEC,HDL-P和预测心血管结果的子类分布进行比较的研究分析.
- 针对HDL的治疗干预措施的评估.
主要成果:
- 胆固醇外流能力 (CEC) 与心血管风险的反向相关性比HDL-C更强.
- 与HDL-C相比,HDL颗粒数 (HDL-P) 是心血管事件的优异预测指标.
- HDL亚类的异质性 (HDL2,HDL3) 影响了HDL颗粒的保护功能.
结论:
- 对HDL功能 (质量,颗粒度,子类分布) 的综合评估提供了优异的心血管风险分层.
- 未来的研究和治疗应该集中在恢复或增强HDL功能上,而不仅仅是增加HDL-C水平.
- 功能性HDL评估代表了理解和管理心血管疾病风险的范式转变.
相关概念视频
Coronary Artery Disease IV: Preventive Measures
32
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...
32
Blood Studies for Cardiovascular System III: Serum Lipid Profile
293
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...
293
Coronary Artery Disease I: Introduction
55
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...
55
Atherosclerosis III: Management
33
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...
33
Lipids: Dietary Sources and Requirements
1.1K
Lipids are an essential component of a balanced human diet. Triglycerides, which make up the majority of dietary lipids, are found in both saturated fats—commonly present in meat, dairy products, and certain tropical plants like coconut, and hydrogenated oils such as margarine and baking shortenings (trans fats)—and unsaturated fats, which are abundant in seeds, nuts, olive oil, and most vegetable oils. The main sources of cholesterol include egg yolks, various meats and organ...
1.1K
Cholesterol: Significance and Regulation
678
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...
678


