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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Harlow Printing Limited Blood Pressure Charts Detailing the mean arterial pressure, pulse pressure, and both systolic and diastolic blood pressure, girls and boys, 4-24 years. HealthForums.com · Library > Q and A Archive : Blood pressure It's important to remember that blood pressure norms for children vary with sex, age and height. Here's a chart to give you an idea of what the NIH GUIDELINE 13: SPECIAL CONSIDERATIONS IN CHILDREN 13.1 Measurement of blood pressure in children should be performed with age- . To use these charts, the age of the child and the height percentile of the Blood Pressure, A Doctor's Practical Guide With Insider's Tips Making a blood pressure chart from your readings is not very difficult. . High blood pressure in children can not be defined as easily as in adults but Overweight Children and Adolescents: Recommendations to Screen In children and adolescents, primary or essential hypertension is diagnosed when persistently elevated blood pressure cannot be explained by any underlying Quick Guide for Kids: Having Your Blood Pressure Checked Information for children and young adults about getting their blood pressure checked, what the process is, what pressures Childhood Blood Pressure Chart Blood pressure charts in UK children -- Tullus and Brennan 92 (11 Blood pressure charts in UK children. Kjell Tullus, Eileen Brennan. Great Ormond Street Hospital for Children, London, UK. Correspondence to: Medindia.net - Blood Pressure charts Itâ™sa means just to alert you whether your blood pressure level is on par with Height and Weight for Children Blood Pressure Chart (Cardiac Tools) Blood Pressure Tables for Children and Adolescents, NHLBI The updated blood pressure (BP) tables for children and adolescents are based on recently revised child height percentiles and also include the BP data from NIH Clinical Center: Pediatric Services DHHS, PHS, NIH, National Heart, Lung, and Blood Institute. Update on the Task Force Report (1987) on High Blood Pressure in Children and Adolescents: A |
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