Lipoproteins, LDL
| Medical Definition: |
A class of lipoproteins responsible for transport of cholesterol to extrahepatic tissues. They are formed in the circulation when very-low-density lipoproteins are degraded first to intermediate-density lipoproteins and then to LDL by the gain and loss of specific apolipoproteins and the loss of most of their triglycerides. LDL are taken up and catabolized by both the liver and extrahepatic tissues by specific receptor-mediated endocytosis. (Dorland, 28th ed) |
| Guide Notes: |
/defic: consider also HYPOBETALIPOPROTEINEMIA |
| Also Called: |
LDL-1,LDL-2 |
| Previously Indexed: |
Lipoproteins (1966-1971) |
Lipoproteins, LDL Categories.
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Lipoproteins, LDL Cholesterol - Cholesterol which is contained in or bound to low density lipoproteins (LDL); LDL transport cholesterol to peripheral tissues and regulate de novo cholesterol synthesis at these sites. Atherosclerosis is caused by the deposit of cholesterol on the walls of blood vessels, because of high concentrations of LDL cholesterol in plasma. |
Lipoproteins, LDL Medical Definitions and Terms
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