Lipoproteins: Blood-borne complexes of lipids and proteins that allow the transport of cholesterol throughout the body. Intermediate density lipoprotein - carry cholesterol esters and triglycerides; Low density lipoprotein - carry cholesterol esters; High density lipoprotein - carry cholesterol esters ... HDL is a small particle composed of phospholipid and apolipoproteins and produced in hepatic and intestinal cells. (VLDL), intermediate-density lipoproteins (IDL), low-density lipoproteins (LDL), and high-density lipoproteins (HDL). IDL is one of the five major groups of lipoproteins (chylomicrons, VLDL, IDL, LDL, HDL) that enable fats and cholesterol to move within the water-based solution of the bloodstream. Author information: (1)Department of Chemical Pathology and Metabolic Disorders, St. Thomas's Hospital, London, U.K. Very-low-density lipoprotein (VLDL) cholesterol is produced in the liver and released into the bloodstream to supply body tissues with a type of fat (triglycerides). This is sometimes is called "bad cholesterol" Metabolic syndrome. In some patients, increased serum lipids reflect elevated levels of intermediate-density lipoprotein (IDL), very-low-density lipoprotein (VLDL), lipoprotein a (Lp[a]), or even the abnormal lipoprotein complex-LpX. After the liver begins to secrete low density lipoprotein then there is a certain particle that will reach the capillary of muscle and will leave an IDL (intermediate density lipoprotein.) LMPP : Lipoprotein metabolism profile analysis adds practical information about the etiology of cholesterol and/or triglyceride elevation. Half of the intermediate density lipoproteins are taken away from the circulation by the liver, and the remaining IDL breaks down into a low density lipoprotein. Intermediate-density lipoprotein (IDL): A class of lipoproteins formed in the degradation of very-low-density lipoproteins; some are cleared rapidly into the liver and some are degraded to low-density lipoproteins. Intermediate-density lipoproteins (IDLs) belong to the lipoprotein particle family and are formed from the degradation of very low-density lipoproteins as well as high-density lipoproteins. Nordestgaard BG(1), Lewis B. Intermediate density lipoprotein levels are strong predictors of the extent of aortic atherosclerosis in the St. Thomas's Hospital rabbit strain. There are several types of cholesterol, each made up of lipoproteins and fats. Other articles where Intermediate-density lipoprotein is discussed: metabolic disease: Lipoprotein disorders: are chylomicrons, very-low-density lipoproteins (VLDL), intermediate-density lipoproteins (IDL), low-density lipoproteins (LDL), and high-density lipoproteins (HDL). LDL, low density lipoprotein – this is the last VLDL remnant, and contains chiefly cholesterol. IDL – intermediate density lipoprotein, is created by the metabolism of VLDL. There is a single molecule of Apo B-100 per very-low-density lipoprotein (VLDL), intermediate-density lipoprotein (IDL), and low-density lipoprotein (LDL) particle. Lipids are circulating as lipoproteins, consisting of unesterified cholesterol, triglycerides, phospholipids, and protein. The β-lipoprotein, present at high concentration, forms a broad band and has a faster mobility than the usual β-lipoprotein. The cholesterol-rich lipoproteins that result from the breakdown and removal of triglycerides from intermediate-density lipoprotein. Disorders that affect lipid metabolism may be caused by defects in the structural proteins of lipoprotein particles, in the cell receptors that recognize the various types of lipoproteins, or in the enzymes that break down fats. There are five major lipoproteins in blood: (1) chylomicrons; (2) very low-density lipoprotein (VLDL); (3) intermediate-density lipoprotein (IDL); (4) low-density lipoprotein (L … The separation between the β-lipoprotein and pre−β-lipoprotein bands is very poor because of the increase in the concentration of abnormal intermediate-density lipoprotein (which lacks apolipoprotein E). Apo B-100 is a ligand for the low-density lipoprotein (LDL) receptor and therefore plays an important role in the clearance of lipoprotein particles.
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