News tagged with cholesterol

Related topics: heart disease · heart attack · cholesterol levels · cardiovascular disease · stroke

No benefit of synthetic HDL-C on arterial plaque

Injection of a novel form of synthetic high-density lipoprotein cholesterol (HDL-C), or good cholesterol, into the arteries of patients who had recently had a heart attack did not reduce the volume of fatty deposits, or plaque, ...

Mar 20, 2017
popularity0 comments 0

PCSK9 inhibition with bococizumab yields mixed results

In a clinical program that was terminated early, the experimental PCSK9 inhibitor bococizumab, when given on top of effective statin therapy, had widely varying effects on LDL cholesterol levels and had no benefit on cardiovascular ...

Mar 17, 2017
popularity1 comments 0

Cholesterol

Cholesterol is a lipidic, waxy steroid found in the cell membranes and transported in the blood plasma of all animals. It is an essential component of mammalian cell membranes where it is required to establish proper membrane permeability and fluidity. Cholesterol is the principal sterol synthesized by animals, but small quantities are synthesized in other eukaryotes, such as plants and fungi. It is almost completely absent among prokaryotes, which include bacteria. Cholesterol is classified as a sterol.

Since cholesterol is essential for life, it is primarily synthesized de novo within the body. However excessive levels of cholesterol in blood circulation are strongly associated with progression of atherosclerosis. For an adult, typical total body cholesterol synthesis is about 1 gram per day (less if dietary intake is high) and total body cholesterol content is about 35 g. Average dietary intake in western societies is 0.2 - 0.3 grams. Cholesterol is excreted by the liver via the bile into the digestive tract. Typically about 50% of the excreted cholesterol is reabsorbed by the small bowel back into the blood stream.

The name cholesterol originates from the Greek chole- (bile) and stereos (solid), and the chemical suffix -ol for an alcohol, as François Poulletier de la Salle first identified cholesterol in solid form in gallstones, in 1769. However, it was only in 1815 that chemist Eugène Chevreul named the compound "cholesterine".

This text uses material from Wikipedia, licensed under CC BY-SA

Subscribe to rss feed