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 New York Times > Health > Children's Blood Pressure Levels Children's Blood Pressure Levels Climb, Increasing Cardiac Risks the average systolic blood pressure, the higher number in a blood pressure reading, High Blood Pressure Trends in Children and Adolescents in National Blood pressure was considered normal when both the systolic pressure (the first number in a blood pressure reading) and the diastolic pressure (the lower Interpreting Blood Pressure Readings in Kids - How to Determine Interpreting blood pressure readings for children is somewhat complicated compared to adults. While adult blood pressure readings can easily be compared to High Blood Pressure in Children and Adolescents - Lucile Packard More meaningful blood pressure readings can be obtained this way. when your child's blood pressure is higher than other children's blood pressure. National Kidney Foundation: A to Z Health Guide Item Normal blood pressure is lower in children. To determine whether your childâ™s blood pressure is high, the doctor will compare his/her reading with charts High blood pressure and children: Early treatment offers hope Normally, blood pressure readings in children vary based on sex, age and height. The readings are classified by percentile, much the way height and weight Hypertension (High Blood Pressure) Because of the way blood pressure readings are calculated for children and teens, readings that doctors consider high in teens can be lower than the blood High Blood Pressure (Hypertension) It's not unusual for a first blood pressure reading to be high because the child is Identifying and treating high blood pressure in children will help MedlinePlus: High Blood Pressure Your blood pressure reading uses these two numbers, the systolic and diastolic . High Blood Pressure and Children: Early Treatment Offers Hope(Mayo Child Blood Pressure - DrGreene.com - caring for the next generation Wherever I look on the Internet, I find adult blood pressure readings. Blood pressures for children vary based on their gender and height percentile. |
| blood pressure reading in children |
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