Related Experiment Video
Updated: Jul 13, 2026

Cell-free Biochemical Fluorometric Enzymatic Assay for High-throughput Measurement of Lipid Peroxidation in High Density Lipoprotein
Published on: October 12, 2017
The paradox of dysfunctional high-density lipoprotein
Benjamin J Ansell1, Gregg C Fonarow, Alan M Fogelman
1Atherosclerosis Research Unit, Division of Cardiology, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California 90095, USA. bansell@mednet.ucla.edu
High-density lipoprotein (HDL) can become proinflammatory during atherosclerosis or inflammation. Treatments and resolving inflammation can restore HDL's protective functions, reducing cardiovascular risk.
Area of Science:
- Cardiovascular Science
- Lipid Metabolism
- Immunology
Background:
- High-density lipoprotein (HDL) typically possesses atheroprotective properties.
- Systemic inflammation and atherosclerosis can alter HDL functionality.
Purpose of the Study:
- To review how HDL loses its protective characteristics and becomes proinflammatory.
- To discuss factors influencing HDL's dual role in inflammation.
Main Methods:
- Review of current scientific literature.
- Analysis of chemical and structural changes in HDL particles.
- Evaluation of therapeutic interventions impacting HDL function.
Main Results:
- Altered HDL impedes reverse cholesterol transport and promotes LDL oxidation and vascular inflammation.
- HDL's inflammatory potential depends on its molecular composition.
- Statins and lifestyle changes can improve proinflammatory HDL characteristics.
Conclusions:
- HDL can become dysfunctional and proinflammatory under certain conditions.
- Systemic inflammation resolution or specific treatments can reverse HDL dysfunction.
- Targeting HDL function offers novel cardiovascular risk reduction strategies.
Related Concept Videos
Overview of Lipid Metabolism
Lipolysis: The Breakdown of Lipids:
Lipolysis is the process of breaking down lipids, particularly triglycerides, into glycerol and fatty acids. This process typically occurs in the adipose tissue and is triggered by various hormones, including glucagon and...
Cholesterol: Significance and Regulation
Considering cholesterol and...
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...
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...
Coronary Artery Disease II: Pathophysiology
Lipids: Dietary Sources and Requirements
