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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High Blood Pressure In Kids Frequently Undiagnosed âœWe assumed that the complexity of the normal blood pressure ranges in children prevents most pediatric clinicians from paying close attention to blood Health: Toddlers & Preschoolers - iVillage However, hypertension or high blood pressure is something that children may Below is a table that gives the range of upper limits for the systolic and BioMed Central | Full text | High blood pressure in school Although four children were outside of this age range (one 8, one 9, .. Alpert BS, Fox ME: Racial aspects of blood pressure in children and adolescents. High blood pressure Current guidelines for children are based on percentile ranges for a childs .. Children with high blood pressure should first be treated with lifestyle Normal Blood Pressure In Children Finally it can be said that, the normal blood pressure ranges amongst the children are comparatively lower than the elderly. Age, race, gender came to play Blood Pressure Tables for Children and Adolescents, NHLBI The updated blood pressure (BP) tables for children and adolescents are based on the clinician with the BP level at the midpoint of the normal range. Normal ranges for children's blood pressure ::: Emergency-Medicine Lists the ranges of normal systolic blood pressure for children of different ages. High Blood Pressure (Hypertension) Among young kids, the "normal" range will depend on the child's gender, age, Identifying and treating high blood pressure in children will help prevent Blood Pressure Testing and Measurement Normal blood pressure is defined by a range of values, Are there larger and smaller blood pressure cuffs for overweight people and children? High Blood Pressure in Children and Adolescents - Lucile Packard A range of blood pressure values is given based on how old and how tall your By their 20s, studies show that children and adolescents with high blood New blood pressure guidelines call for early intervention -- Flynn The 50th percentile values are provided to show the midpoint of the range of blood pressure values for children of a specific age, gender and height, |
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