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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Animation: What is High Blood Pressure and Hypertension? Secondary hypertension is elevated blood pressure that results from an A blood pressure reading of 120/80mmHg is considered normal whereas a blood Blood Pressure Guide You can treat your hypertension and hypotension in several ways. There are so many treatments available for both type of blood pressure. read more>> Blood Pressure Monitoring at Home -- familydoctor.org Hypertension means high blood pressure. Hypotension means low blood pressure. Look at the display window to see your blood pressure reading. Hypertension Information on Healthline Hypertension means high blood pressure. Blood pressure readings are measured in millimeters of mercury What was your most recent blood pressure reading? Natural Remedies for High Blood Pressure The upper or first number in a blood pressure reading is the systolic pressure and This kind of high blood pressure is called primary hypertension or How To Treat High Blood Pressure Without Drugs Discover the main causes of hypertension and know how to prevent it. Read about more natural options. 75% of High Blood Pressure Untreated in U.S.: Not ABC of hypertension: Blood pressure measurement -- Beevers et al Instruction in the theory of hypertension and blood pressure measurement; Booklet for reading, eg BHS Recommendations on blood pressure measurement Blood pressure - Wikipedia, the free encyclopedia A full bladder can change your blood pressure reading. subjects with no known history of hypertension, an average systolic blood pressure of 112.4 mm Hg High blood pressure (hypertension) - Prevention of risk factors Blood pressure (hypertension) is a measure of the pressure or force of blood For more information on blood pressure please read our brochure âœGet Your High blood pressure? Read on - On Line Opinion - 8/8/2007 Not a good reading. A subsequent test, a week later, registered 150/80. My GP noted that normal blood pressure is less than 120 over less than 80, WebMD Hypertension/High Blood Pressure Center - Find high blood Find in-depth high blood pressure and hypertension information including its causes, These are the current technical articles your doctor is reading. Blood Pressure (Read about "Pulmonary Hypertension") It affects the lungs and the pulmonary artery. Pulmonary hypertension happens when the blood pressure in the pulmonary High blood pressure (hypertension) Hypertension occurs when blood is forced through the arteries at an increased pressure. A typical normal blood pressure reading would be 120/80 mmHg. High Blood Pressure (Hypertension) - Yahoo! Health When you have high blood pressure, or hypertension, the force of blood against your artery It is the first or top number of a blood pressure reading. Systolic -- Not Diastolic -- Blood-Pressure Reading Should Define Systolic -- Not Diastolic -- Blood-Pressure Reading Should Define Hypertension, New NIH Clinical Advisory States. ScienceDaily (May 8, 2000) â” Author Izzo, High Blood Pressure (Hypertension) - Patient UK A one-off blood pressure reading that is high does not mean that you have 'high You are said to have 'high blood pressure' (hypertension) if you have MedlinePlus: High Blood Pressure Your blood pressure reading uses these two numbers, the systolic and diastolic High Blood Pressure (Hypertension)(Food and Drug Administration) High Blood Pressure Itâ™s important to understand your blood pressure. Our experts answer your questions. Read commonly asked questions and get answers. High blood pressure (hypertension) - causes, treatments and High Blood Pressure: Medical information about hypertension, its treatment, Source:MedicineNet; Read 952 more High Blood Pressure related articles . |
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