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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New guidelines for high blood pressure in kids - Kids and New federal guidelines recommend checking children for possible heart and blood vessel damage if they have high blood pressure â” a hazard increasing among New Blood Pressure Guidelines: JNC 7 - Journal Watch Women's Health The Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure (JNC 7) has released updated guidelines for the New 2007 guidelines for the management of high blood pressure New 2007 guidelines for the management of high blood pressure. Imperial College London - Imperial study influences national An Imperial study has significantly influenced new clinical guidelines for the treatment of patients with high blood pressure. New 2007 guidelines for the management of high blood pressure The release of the 2007 recommendations for the management of hypertension (high blood pressure). New Data, New Guidelines, New Treatments -- and a "Polymeal"? AHA Updates Guidelines for Blood Pressure Measurement With New Emphasis on Out-of-Office Readings. The AHA Council on High Blood Pressure Research has New High Blood Pressure (Hypertension) Guidelines New High Blood Pressure (Hypertension) Guidelines. New Hypertension Guidelines Fail to Improve Blood Pressure Control 27 /PRNewswire-USNewswire/ -- Despite the publication of increasingly aggressive guidelines for lowering blood pressure in people with diabetes, Practice Guidelines - July 15, 2003 - American Family Physician 68/No. 2 (July 15, 2003) · American Family Physician. Practice Guidelines. NHLBI Releases New High Blood Pressure Guidelines. Genevieve W. Ressel The new blood pressure guidelines: A digest -- GLICK 135 (5): 585 Glick M. New guidelines for prevention, detection, evaluation and treatment of high blood pressure. JADA 1998;129:1588â“94. New Hypertension Guidelines Fail To Improve Blood Pressure Control Despite the publication of increasingly aggressive guidelines for lowering blood pressure in people with diabetes, this condition remains substantially Diabetes Education and Research Center: New Blood Pressure New Blood Pressure Guidelines Prove Challenging. A new study in the January issue of Diabetes Care found that the more aggressive guidelines for treatment Blood Pressure Guidelines - High Blood Pressure (Hypertension) and The key messages in the new guidelines include the following:. In persons older than 50 years a systolic, or upper, blood pressure of more than 140 mm Hg is The Seattle Times: Health: New blood-pressure guidelines pay off Then a medical panel published new guidelines for treating high blood pressure, and her doctor tried her on three different pills. New clinical guidelines for blood pressure released - Findings The new report changes the former blood pressure definitions. Typically, blood pressure measurements are stated as, for example, 120 over 70. NIH/NHLBI News Release--NHLBI Issues New High Blood Pressure The guidelines include new data on U.S. control, awareness, and treatment rates for high blood pressure. According to a national survey, 70 percent of Revised Blood Pressure Guidelines Put Millions in New Category Under new National Heart, Lung, and Blood Institute guidelines, blood pressure readings are regarded as normal only if they are lower than 120 over 80. New high blood pressure guidelines say start early, treat aggressively New recommendations for tighter control of high blood pressure may drastically reduce the number of individuals who die each year from hypertension-related |
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