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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Alcohol poses many health risks, few benefits | Environmental Alcohol and Blood Pressure. Excessive alcohol intake may be the most a rise in blood pressure--4 to 6 points systolically (the top number in a blood Jack: More than just hypertension 57 years old and had been on multiple medications for high blood pressure for over 15 years. ranging 140-150's systolically and 90's diastolically. More About Diagnosis denounced.the whole idea of blood pressure esti-. mation. He damned it systolically, he cursed it. in diastole, he went on to raise doubts about the Does Music affect your Blood Pressure? - Yahoo!7 Answers I would say that soft, calming music might have the ability to bring the blood pressure down a few points systolically. 4 days ago Oral dosing with ketanserin to control high blood pressure in the dally, blood pressure was found to be fully normalized in. 18% of patients, while the proportion of patients, blood pressures were elevated systolically Citation Nr: 0305822 Decision Date: 03/27/03 Archive Date: 04/08 VA medical records from November 1998 to May 1999 show blood pressure readings ranging from 122 to 162 systolically and 88 to 114 diastolically. Citation Nr: 0324922 Decision Date: 09/25/03 Archive Date: 10/02 However, evidence of record does not show blood pressure readings predominantly at 200 systolically or 110 diastolically. In fact, the highest blood Non-drug modification of blood pressure in a health resort The average decrease of blood pressure at the end of the cure was in patients with normal blood pressure 4.42 Torr (0.59 kPa) systolically and 3.52 Torr Prevalence, degree of recognition and detection of hypertension 36.6% of the patients with hypertension had values of blood pressure lower than 160/95 Hg, in 40.5% the blood pressure values were systolically in the Systole (medicine) - Wikipedia, the free encyclopedia Atrial systole, which normally occurs in the late portion of ventricular diastole, causes increased pressure in the atrium and added blood flow into the |
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