Citizendium - a community developing a quality comprehensive compendium of knowledge, online and free. Click here to join and contribute—free
CZ thanks our previous donors. Donate here. Treasurer's Financial Report -- Thanks to our content contributors. --

Cholesterol

From Citizendium, the Citizens' Compendium

Jump to: navigation, search
This article is a stub and thus not approved.
Main Article
Talk
Related Articles  [?]
Bibliography  [?]
External Links  [?]
Citable Version  [?]
Signed Articles [?]
 
This editable Main Article is under development and not meant to be cited; by editing it you can help to improve it towards a future approved, citable version. These unapproved articles are subject to a disclaimer.
(CC) Image: David E. Volk
Structure and nomenclature of cholesterol. All steroid nomenclature is based on cholesterol. By convention, substituents pointing up, like C-18 and C-19, are called \beta while those pointing down are called \alpha.

Cholesterol is a lipid that is the "principal sterol of all higher animals, distributed in body tissues, especially the brain and spinal cord, and in animal fats and oils."[1]

There is much confusion, in the lay press, between cholesterol itself, and the lipoproteins that carry it in the blood. References to "bad cholesterol" are misleading because cholesterol is cholesterol, but cholesterol carried by low-density lipoproteins (LDL) tend to increase atherosclerosis while cholesterol carried by high-density lipoproteins (HDL) tend to decrease it.

Contents

Disorders of cholesterol

Hypercholesterolemia may contribute to coronary heart disease, stroke, and other complications.

Hypoalphalipoproteinemia is abnormally low levels of alpha-lipoproteins (high-density lipoproteins or HDL) in the blood. Low levels of high-density lipoproteins in the blood is a component of the metabolic syndrome.

Treatment

For more information, see: Hypercholesterolemia.


References

  1. Anonymous (2014), Cholesterol (English). Medical Subject Headings. U.S. National Library of Medicine.

See also

Views
Personal tools