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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BBC News | HEALTH | Dyslexia blood pressure 'link' Many dyslexic children come from families with a history of lower blood pressure - adding weight to theories of a common cause of the disorder. Medwave History of Measuring Blood Pressure The first direct blood pressure measurement is attributed to the Reverend Stephen Hales in 1733. Blood pressure Blood pressure is a measurement of the force applied to the walls of the arteries as the heart pumps blood through the body View History. Blood pressure Hypertension (High Blood Pressure) If your blood pressure is near the top of the normal range or if you have a family history of high blood pressure, you're at a higher risk for developing Identifying hypertension using the Ohio blood pressure history Identifying hypertension using the Ohio blood pressure history survey from Military Medicine in Health provided free by Find Articles. DEPRESSION TIED TO HYPERTENSION BY FAMILY HISTORY Higher blood pressure is linked to depression, but only in people with a family history of hypertension, a new study finds. People whose parents did not Hypertension and Family Health History: Chronic Disease Genomics Family History: If your parents or other close blood relatives have high blood pressure, you're more likely to develop it.(4); Age: Risk increases with age. High Blood Pressure The range of normal blood pressure readings varies according to several factors including exercise level, age, medical history and health status. Family History and High Blood Pressure There are different types of family history, and each one has a different meaning for your individual risk profile. Learn about the different kinds of YouTube - My history of blood pressureā0*)ļ¾ I'm not high blood pressure and low pressureā And background music is LOVE AGAIN TONIGHTfor Mellisa mixby NAOKI. A short history of blood pressure measurement. A short history of blood pressure measurement. J Booth. Small right arrow pointing to: This article has been cited by other articles in PMC. Full text JAMA -- Abstract: Remission of hypertension. The 'natural' history The 'natural' history of blood pressure treatment in the Framingham Study. A. L. Dannenberg and W. B. Kannel. Recent studies suggesting that adequate blood What Is High Blood Pressure? It may run in families, but many people with a strong family history of high blood pressure never have it. People with diabetes mellitus, gout or kidney High blood pressure (hypertension) - CNN.com Serious complications, such as stroke and heart attack, also are more common in blacks. Family history. High blood pressure tends to run in families. A History of Cardiology: The Beat Goes On: University of Iowa Medical Museum. The Beat Goes On: A History of Cardiology. Blood Pressure. Horse Blood Pressure In 1714, Stephen Hales opened an artery of a horse, Blood Pressure Monitoring How the idea of blood pressure was developed through history. The development of the sphymomanometer and the stethoscope is explored. History The History of Blood Pressure Monitoring. ā¢ Invasive Catheterisation Method ā¢ The Manual Auscultatory Method ā¢ The Automated Auscultatory Method Introduction of the Blood Pressure Cuff into U.S. Medical Practice The history of the sphygmomanometer, or blood pressure cuff, raises useful questions about the acceptance of new medical technologies. History of blood pressure measurement The history of blood pressure measurement The ancient Greek physician Galen first proposed the existence of blood in the human body. |
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