News tagged with cholesterol
Which women should be screened for high cholesterol?
National guidelines recommend that at-risk women be screened for elevated cholesterol levels to reduce their chances of developing cardiovascular disease. But who is 'at risk?' The results of a study by investigators ...
Cardiology
May 20, 2013 |
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Free fatty acids linked to cardiac risk in late adulthood
(HealthDay)—Blood levels of free fatty acids are associated with insulin resistance during young adulthood and cardiovascular risk factors in later adulthood, according to a study published online May 13 ...
Cardiology
May 17, 2013 |
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New mechanism to prevent type 2 diabetes in obese individuals
A new Montréal study conducted by Dr. May Faraj, associate research professor at the Université de Montréal and invited scientist at the IRCM, along with her research team and medical collaborators, shows ...
Medical research
May 17, 2013 |
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Stroke patients respond similarly to after-stroke care, despite age difference
Age has little to do with how patients should be treated after suffering a stroke, according to new research from the University of Georgia.
Cardiology
May 17, 2013 |
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LDL cholesterol is a poor marker of heart health in patients with kidney disease
LDL cholesterol is not a useful marker of heart disease risk in patients with kidney disease, according to a study appearing in an upcoming issue of the Journal of the American Society of Nephrology (JASN). The finding sugges ...
Diseases, Conditions, Syndromes
May 16, 2013 |
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Work-related stress linked to increased blood fat levels
Spanish researchers have studied how job stress affects cardiovascular health. The results, published in the 'Scandinavian Journal of Public Health', link this situation to dyslipidemia, a disorder that a ...
Health
May 16, 2013 |
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Cholesterol-lowering drug may reduce exercise benefits for obese adults, study finds
Statins, the most widely prescribed drugs worldwide, are often suggested to lower cholesterol and prevent heart disease in individuals with obesity, diabetes and metabolic syndrome, which is a combination of medical disorders ...
Cardiology
May 15, 2013 |
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Four genes indentified that influence levels of 'bad' cholesterol
Scientists at the Texas Biomedical Research Institute in San Antonio have identified four genes in baboons that influence levels of "bad" cholesterol. This discovery could lead to the development of new drugs to reduce the ...
Medical research
May 15, 2013 |
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The search for an early biomarker to fight atherosclerosis
The Journal of the American Heart Association published the conclusive results from a study directed by Dr. Éric Thorin of the Montreal Heart Institute (MHI), which suggests for the first time that a blood protein contri ...
Cardiology
May 14, 2013 |
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Estrogen levels tied to risk for sudden cardiac death in study
(HealthDay)—Higher levels of the hormone estrogen are associated with an increased risk of sudden cardiac death in men and women, a new study suggests.
Cardiology
May 11, 2013 |
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Pets may help reduce your risk of heart disease
Having a pet might lower your risk of heart disease, according to a new American Heart Association scientific statement.
Cardiology
May 09, 2013 |
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Study: Fish oil's work vs. heart attacks limited
Eating fish is good for your heart, but taking fish oil capsules does not help people at high risk of heart problems who are already taking medicines to prevent them, a large study in Italy found.
Cardiology
May 08, 2013 |
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Whole walnuts and their extracted oil improve cardiovascular disease risk
(Medical Xpress)—Consumption of whole walnuts or their extracted oil can reduce cardiovascular risk through a mechanism other than simply lowering cholesterol, according to a team of Penn State, Tufts University ...
Health
May 08, 2013 |
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Half the recommended exercise can cut risk of serious illness
Doing just half the amount of recommended exercise can be enough to reduce the risk of serious illness, research from the Department for Health have found.
Cardiology
May 08, 2013 |
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Buying testosterone supplements online can be risky
(HealthDay)—If you're a man suffering from low energy or libido, the drug industry is eager to help. So-called "Low T"—low testosterone—has become a common catch phrase in TV commercials, and sales ...
Health
May 07, 2013 |
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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".
For more information about Cholesterol, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
