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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The Seattle Times: Health: New blood-pressure guidelines pay off Despite the scientific proof, diuretics and beta blockers will continue to lose their share of the blood-pressure-medicine market, dropping 35 percent and Cardiovascular & Circulatory System Health - Promote Normal Blood Natural Remedies to Maintain Normal Blood Pressure. Natural remedies have been used in traditional medicine for thousands of years to support the solid High Blood Pressure Medication - DIOVAN.com Learn about hypertension (high blood pressure), including symptoms, how blood pressure is measured, and what you can do to prevent or control high blood Blood Pressure Medication Types Information and description of the actions of the different classes of blood pressure medications that are available for treating high blood pressure. Medication for High Blood Pressure - Patient UK There are five main classes of drugs that are used to lower blood pressure. There are various types and brands of drug in each class. High blood pressure medication: When should I take it The best time to take high blood pressure medication depends on several factors. Lotrel.com Lotrel.com. What Is High Blood Pressure Medicine? This Answers by Heart sheet describes how medication can be used in the management of high blood pressure, the types of drugs and their side effects and Types of Blood Pressure Medications: Guide to Lowering HBP The ACE inhibitors cause the vessels to relax and blood pressure goes down. As a result, the vessels become wider and blood pressure goes down. Taking Medication for High Blood Pressure Find out about high blood pressure medications. (The generic name is followed by the brand name. These brand names are registered to various companies. Blood Pressure Medicines -- familydoctor.org There are 8 types of medicine used to treat high blood pressure. Some examples of diuretics include chlorthalidone (brand name: Thalitone), |
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