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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Anaesthesia - Fulltext: Volume 58(5) May 2003 p 448-454 Validation Colin expects to bring its second- generation tonometric blood pressure monitor to market in late summer, pending F.D.A. approval, Mr. Franchetti said. BBS Titel:, Low-cost continuous arterial blood pressure monitor for research with major suppliers/brands such as Finometer, Portapres, Colin dominating. Do the Finapres and Colin radial artery tonometer measure the same Sato T, Nishinga M, Kawamoto A, Ozawa T and Takatsuji H 1993 Accuracy of a continuous blood pressure monitor. based on arterial tonometry Hypertension 21 Omron - Healthcare Colin Medical Instruments - Non-Invasive OEM Overall, we found the radial tonometric continuous non-invasive blood pressure monitor (Colin Pilot) to be very useful. Its improved detection methods Blood Pressure Monitoring - Fulltext: Volume 7(5) October 2002 p Recently, a tonometric system, the Colin CBM-7000 has been developed for . Accuracy of a continuous blood pressure monitor based on arterial tonometry. ScienceDirect - American Journal of Hypertension : Evaluation of Validation of a tonometric noninvasive arterial blood pressure monitor in the the Colin CBM-7000 cannot be recommended for continuous blood pressure Blackwell Synergy - Anaesthesia, Volume 58 Issue 5 Page 448-454 An applanation tonometer (Colin Medical Instruments) was attached to the subjectâ™s . of a continuous blood pressure monitor based on arterial tonometry. Continuous blood-pressure monitor apparatus - US Patent 6394959 Continuous blood-pressure monitor apparatus - US Patent 6394959 from Patent Storm. A blood-pressure monitor apparatus including a pulse-wave sensor Motion artifact detection for continuous blood pressure monitor Colin Electronics Co., Ltd. (JP). Primary Class: . 1 illustrating the continuous blood pressure monitor positioned over an artery with the artery being Brain Foundation - Colin Blood Pressure Monitor for Severe Head The Colin blood pressure monitor gives a continuous reading of blood pressure without the need for an invasive cannula. It can thus be used at a later stage |
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