| total cholesterol | A combination of the LDL, HDL and VLDL levels in the bloodstream. This is the cholesterol measurement that is given by the standard home cholesterol test kit. Less than 200 is desirable, 200 to 239 is considered borderline high, over 240 is considered high. (27 Sep 1997) |
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| acid cholesterol ester synthetase | <enzyme> Aortal enzyme, does not require exogenous ATP or CoA; reverse reaction of cholesterol esterase Registry number: EC 3.1.1.- Synonym: cholesterol ester synthetase (26 Jun 1999) |
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| good cholesterol | High-density lipoprotein (HDL) cholesterol. (12 Dec 1998) |
| cholesterol | 1. <biochemistry> A pearly, fatlike steroid alcohol, C27H45OH, crystallizing in the form of leaflets or plates from dilute alcohol and found in animal fats and oils, in bile, blood, brain tissue, milk, yolk of egg, myelin sheaths of nerve fibres, the liver, kidneys and adrenal glands. It constitutes a large part of the most frequently occurring type of gallstones and occurs in atheroma of the arteries, in various cysts and in carcinomatous tissue. Most of the bodys cholesterol is synthesised in the liver, but some is absorbed from the diet. It is a precursor of bile acids and is important in the synthesis of steroid hormones. 2. <chemical> A commercial preparation of cholesterol is used as a pharmaceutic aid. Synonym: cholesterin. Origin: Gr. Stereos = solid (15 Jan 1998) |
| cholesterol 26-hydroxylase | <enzyme> Cyt p-450 dependent, ferredoxin involved Registry number: EC 1.14.15.- (26 Jun 1999) |
| cholesterol-5 alpha,6 alpha-epoxide hydrase | <enzyme> Aspect of epoxide hydrolase, EC 3.3.2.3 Pharmacological action: carcinogen Registry number: EC 3.3.2.- Synonym: cholesterol epoxide hydrase, cholesterol epoxide hydrolase (26 Jun 1999) |
| cholesterol 7 alpha-monooxygenase | <enzyme> An enzyme that catalyses the hydroxylation of cholesterol to cholest-5-en-3 beta,7 alpha-diol. Chemical name: Cholesterol,NADPH:oxygen oxidoreductase (7 alpha-hydroxylating) Registry number: EC 1.14.13.17 (12 Dec 1998) |
| cholesterol, bad | Low-density lipoprotein (LDL) cholesterol. (12 Dec 1998) |
| cholesterol cleft | A space caused by the dissolving out of cholesterol crystals in sections of tissue embedded in paraffin. (05 Mar 2000) |
| cholesterol dehydrogenase | <enzyme> Converts cholesterol to coprostanol; mechanism given is incorrect for enzyme name Registry number: EC 1.3.- (26 Jun 1999) |
| cholesterol, dietary | Cholesterol present in food, especially in animal products. (12 Dec 1998) |
| cholesterol embolism | Embolism of lipid debris from an ulcerated atheromatous deposit, generally from a large artery to small arterial branches; it is usually small and rarely causes infarction. Synonym: atheroma embolism. (05 Mar 2000) |
| cholesterol esterase | <enzyme> An enzyme that catalyses the hydrolysis of cholesterol and some other sterol esters, to liberate cholesterol plus a fatty acid anion. Chemical name: Steryl-ester acylhydrolase Registry number: EC 3.1.1.13 (12 Dec 1998) |
| cholesterol esters | Fatty acid esters of cholesterol which constitute about two-thirds of the cholesterol in the plasma. The accumulation of cholesterol esters in the arterial intima is a characteristic feature of atherosclerosis. (12 Dec 1998) |
| cholesterol ester storage disease | A rare benign adult form of inherited lysosomal lipid storage disease that is due to deficiency of acid lipase. It results in an accumulation of neutral lipids, particularly cholesterol esters, within cells (particularly leukocytes, fibroblasts, and liver cells). It is an allelic variant of wolman disease. (12 Dec 1998) |
| cholesterol ester transport proteins | A protein that transports cholesterol esters from HDL to VLDL and LDL; a deficiency of this protein is associated with elevated HDL cholesterol. (05 Mar 2000) |