Related Experiment Videos
Triglyceride-rich lipoproteins: are links with atherosclerosis mediated by a procoagulant and proinflammatory
1University Department of Medicine, Southampton General Hospital, UK. cdtb@soton.ac.uk
Insights
Lowering low-density lipoprotein cholesterol (LDLc) improves survival in vascular disease patients. However, atherogenic lipoprotein phenotype (ALP) also contributes to atherosclerotic vascular disease (AVD) through complex mechanisms.
Area of Science:
- Cardiovascular Medicine
- Lipid Metabolism
- Atherosclerosis Research
Background:
- Reducing low-density lipoprotein cholesterol (LDLc) improves survival by 20-30% in patients with pre-existing vascular disease.
- Established atherosclerotic vascular disease (AVD) is largely irreversible with current therapies.
- Other factors beyond LDLc contribute to AVD, including the atherogenic lipoprotein phenotype (ALP).
Purpose of the Study:
- To review the mechanisms linking the atherogenic lipoprotein phenotype (ALP) to atherosclerotic vascular disease (AVD).
- To explore how triglyceride-rich lipoproteins contribute to AVD.
- To discuss the role of ALP in platelet function, coagulation, and vascular inflammation.
Main Methods:
- Review of existing angiographic studies.
- Analysis of recent evidence on procoagulant and proinflammatory states.
- Discussion of proposed mechanisms linking ALP to AVD.
Main Results:
- Established atherosclerotic vascular disease (AVD) is often irreversible.
- The atherogenic lipoprotein phenotype (ALP), characterized by lipoprotein abnormalities, is a significant risk factor for AVD.
- The precise mechanisms linking ALP to AVD are not fully understood but may involve procoagulant and proinflammatory pathways.
Conclusions:
- Current LDLc-lowering therapies have limitations in fully reversing established atherosclerotic vascular disease (AVD).
- The atherogenic lipoprotein phenotype (ALP) plays a crucial role in AVD development.
- Further research is needed to elucidate how ALP, particularly triglyceride-rich lipoproteins, impacts vascular health via platelet function, coagulation, and inflammation.
Abstract:
Specific treatment that primarily reduces low density lipoprotein cholesterol (LDLc) levels improves survival of patients with pre-existing vascular disease by 20-30%. Failure to produce a more marked improvement in outcome is most likely explained by: (1) the observation from angiographic studies that established atherosclerotic vascular disease (AVD) is largely irreversible with current therapy and (2) other important factors cause AVD besides LDLc. One such risk factor predicting development of AVD is the atherogenic lipoprotein phenotype (ALP), comprising abnormalities of triglyceride enriched lipoproteins, high density lipoprotein cholesterol (HDLc) and small dense LDL particles. Despite strong links between the ALP and AVD, the mechanism(s) linking these relatively subtle lipoprotein abnormalities to vascular disease is poorly understood. Recent evidence suggests that a procoagulant and proinflammatory state develops within the vasculature, perhaps mediating a link between the ALP and AVD. The purpose of this review is to discuss mechanisms by which the ALP, and specifically, certain triglyceride-rich lipoproteins, may cause AVD by adverse affects on platelet function, coagulation and vascular inflammation. All rights reserved.
Related Concept Videos
Atherosclerosis I: Introduction
Inflammation
Blood Studies for Cardiovascular System III: Serum Lipid Profile
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...
Coronary Artery Disease II: Pathophysiology
Lipid-derived Compounds in the Human Body
Fat-soluble Vitamins
Fat-soluble vitamins, including vitamins A, D, E, and K, are required in minimal quantities, but their deficiencies can lead to severely abnormal physiological conditions. For example, vitamin A deficiency can cause night blindness, dry skin, delayed...
Cholesterol: Significance and Regulation
Considering cholesterol and...