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Cell-free Biochemical Fluorometric Enzymatic Assay for High-throughput Measurement of Lipid Peroxidation in High Density Lipoprotein
Published on: October 12, 2017
Lipoprotein cholesterol and atherosclerosis
1Section of Experimental Atherosclerosis, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892-1422, USA. kruthh@nhlbi.nih.gov
Insights
Cholesterol buildup in arteries, known as atherosclerosis, is driven by low-density lipoprotein (LDL). This review examines how LDL enters and is retained in the arterial wall, contributing to heart attacks and strokes.
Area of Science:
- Cardiovascular Science
- Lipid Metabolism
- Pathology
Background:
- Atherosclerosis, a major cause of heart attacks and strokes, involves cholesterol accumulation in artery walls.
- Low-density lipoprotein (LDL) is a primary carrier of blood cholesterol and is implicated in atherosclerotic plaque development.
- Endothelial cells play a role in transporting LDL into the arterial wall.
Purpose of the Study:
- To review the mechanisms of cholesterol accumulation in atherosclerotic plaques.
- To discuss the pathways of cholesterol entry and removal within the arterial wall.
- To examine the metabolism and physical changes of cholesterol in atherosclerosis.
Main Methods:
- Literature review of scientific articles on atherosclerosis and cholesterol metabolism.
- Analysis of current models for LDL uptake and retention in the arterial wall.
- Synthesis of information on cholesterol transport, metabolism, and physical state within the vessel wall.
Main Results:
- Cholesterol buildup in atherosclerotic plaques is influenced by both increased LDL uptake and enhanced LDL retention.
- Understanding cholesterol entry and removal pathways is crucial for comprehending plaque formation.
- Metabolic and physical alterations of cholesterol within the arterial wall contribute to disease progression.
Conclusions:
- The progressive accumulation of cholesterol, particularly LDL, in the arterial wall is central to atherosclerosis.
- Further research into cholesterol dynamics within the vessel wall can elucidate mechanisms underlying heart attacks and strokes.
- This review synthesizes current knowledge on cholesterol's role in arterial wall pathology.
Abstract:
Progressive accumulation of cholesterol in the arterial wall causes atherosclerosis, the pathologic process underlying most heart attacks and strokes. Low density lipoprotein (LDL), the major carrier of blood cholesterol, has been implicated in the buildup of cholesterol in atherosclerotic plaques. Endothelial cells that line arteries function to transport LDL into the vessel wall. Models for the mechanism of cholesterol accumulation in atherosclerotic plaques emphasize increased LDL uptake into the vessel wall or increased retention of LDL that has entered the vessel wall. This article reviews the pathways of cholesterol entry and removal, the metabolism, and the physical changes of cholesterol in the vessel wall. How these processes are believed to contribute to cholesterol buildup in atherosclerotic plaques is discussed.
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