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LDL lipoprotein

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In medicine and biochemistry, LDL lipoproteins are "class of lipoproteins of small size (18-25 nm) and light (1.019-1.063 g/ml) particles with a core composed mainly of cholesterol esters and smaller amounts of triglycerides. The surface monolayer consists mostly of phospholipids, a single copy of apolipoprotein B-100, and free cholesterol molecules. The main LDL function is to transport cholesterol and cholesterol esters to extrahepatic tissues."[1]

It is unclear if measuring LDL lipoprotein subfractions improves predicting coronary heart disease. [2]


  1. Anonymous (2020), LDL lipoproteins (English). Medical Subject Headings. U.S. National Library of Medicine.
  2. Ip S, Lichtenstein AH, Chung M, Lau J, Balk EM (2009). "Systematic review: association of low-density lipoprotein subfractions with cardiovascular outcomes.". Ann Intern Med 150 (7): 474-84. PMID 19349632.