What is Cholesterol?

Cholesterol is a sterol (a combination steroid and alcohol). Cholesterol is a lipid found in the cell membranes of all tissues, and it is transported in the blood plasma of all animals. Because cholesterol is synthesized by all eukaryotes, trace amounts of cholesterol are also found in membranes of plants and fungi.The name originates from the Greek chole- (bile) and stereos (solid), and the chemical suffix -ol for an alcohol, as researchers first identified cholesterol in solid form in gallstones by Francois Poulletier de la Salle in 1769. However, it is only in 1815 that chemist Eugene Chevreul named the compound "cholesterine".[2]Most of the cholesterol is synthesized by the body and some has dietary origin. Cholesterol is more abundant in tissues which either synthesize more or have more abundant densely-packed membranes, for example, the liver, spinal cord and brain. It plays a central role in many biochemical processes, such as the composition of cell membranes and the synthesis of steroid hormones. Cholesterol is insoluble in blood, but is transported in the circulatory system bound to one of the varieties of lipoprotein, spherical particles which have an exterior composed mainly of water-soluble proteins. The main types, low-density lipoprotein (LDL) and high-density lipoprotein (HDL) carry cholesterol from and to the liver.According to the lipid hypothesis, abnormally high cholesterol levels (hypercholesterolemia) and abnormal proportions of LDL and HDL are associated with cardiovascular disease by promoting atheroma development in arteries (atherosclerosis). This disease process leads to myocardial infarction (heart attack), stroke and peripheral vascular disease. As high LDL contributes to this process, it is termed "bad cholesterol", while high levels of HDL ("good cholesterol") offer a degree of protection. The balance can be redressed with exercise, a healthy diet, and sometimes medication.

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Do You Have Birth Control High Blood Pressure Concerns?
Do You Have Birth Control High Blood Pressure Concerns?

Birth Control Buzz Blog: Birth control pills and high blood
If you have high blood pressure that is under control with medication, you may still be able to take birth control pills or use the patch, but your blood

WOMENS-HEALTH Messages for August, 2002: Re: Birth Control High
Re: Birth Control High Blood Pressure. From: Alicia M. Lapidus M.D. (anonymous@obgyn.net) Thu, 15 Aug 2002 11:21:24 -0500 (CDT)

Birth Control: high blood pressure & birth control
I think you should consider non-hormonal birth control, perhaps the condom, diaphragm, sponge or copper intra-uterine device. All of these are effective

Frequently Asked Questions About Birth Control Methods
Making decisions about birth control, or contraception, is not easy â“ there . including high blood pressure, blood clots, and blockage of the arteries,

Birth Control: What's the Best Method If I Have High Blood Pressure?
Birth Control: What's the Best Method If I Have High Blood Pressure?

Birth Control Pills and Blood Pressure - The Link Between Oral
While the absolute risk of developing high blood pressure while taking birth control pills has not been established, there are several other factors that

Living With High Blood Pressure
Women taking birth control pills usually have a small increase in both systolic and diastolic blood pressure. If you have high blood pressure and are using

A Special Message for Women
Medical researchers have found that taking birth control pills is linked with high blood pressure in some women. Itâ™s more likely to occur if you're

Birth control pill FAQ: Benefits, risks and choices - MayoClinic.com
Birth control pills may increase blood pressure. The risk of high blood pressure in women who take birth control pills also increases with age and the

Secondary high blood pressure: When another condition causes
This type of high blood pressure, known as secondary hypertension, tends to appear . Birth control pills, decongestants and certain herbal supplements,


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