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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Why do pulse rate and blood pressure change after exercise Why do pulse rate and blood pressure change after exercise? Science Links Japan | Changes of Blood Pressure and Pulse Rate by Title;Changes of Blood Pressure and Pulse Rate by Active Postural Changes in Early Brain Damaged Patients. Author;SATAKE MASAHIRO(Akita Daigaku Iryo Gijutsu CIRCADIAN VARIATIONS OF BLOOD PRESSURE AND PULSE RATE IN ESSENTIAL three groups. The EHT and. DMH. groups showed a. significant increase in pulse rate and no significant. change in blood pressure. On the other hand, the Method for measuring blood pressure and pulse rate with a pump A method for measuring blood pressure and pulse rate with a pump-less mechanical The pressure is increased inside the air bag and the pressure change is Nifedipine and attenuation of blood pressure and pulse rate Nifedipine and attenuation of blood pressure and pulse rate changes in response to laryngoscopy and tracheal intubation. Indian Journal of Anaesthesia. Nigerian Journal of Medicine: Blood Pressure and Pulse Rate Blood Pressure and Pulse Rate Changes Associated with Cervical Traction. V.A. Utti BPT, M.Sc.Med Rehab, MHPM, S. Ege BMR, O. Lukman BMR Vital Signs (Body Temperature, Pulse Rate, Respiration Rate, Blood body temperature; pulse rate; respiration rate (rate of breathing); blood pressure (Blood pressure is not considered a vital sign, but is often measured IngentaConnect Quantitative Evaluation of Changes in Pulse Rate Changes in pulse rate and blood pressure induced by active postural change from the supine to the sitting position and the effects of aging on these changes A COMPARISON OF THE CHANGES IN PULSE RATE AND IN BLOOD PRESSURE Title : A COMPARISON OF THE CHANGES IN PULSE RATE AND IN BLOOD PRESSURE RESULTING FROM ANOXIA, INCREASED INTRATHORACIC PRESSURE, AND CHANGE IN POSTURE Significance of changes in blood pressure and pulse rate after Blood-pressure and pulse-rate changes were evaluated prospectively in 50 patients under- .. consistent change in the blood pressure or pulse rate POSTURAL CHANGES IN BLOOD PRESSURE AND PULSE RATE AMONG BLACK POSTURAL CHANGES IN BLOOD PRESSURE AND PULSE RATE AMONG BLACK ADOLESCENTS AND WHITE ADOLESCENTS: THE MINNEAPOLIS CHILDREN'S BLOOD PRESSURE STUDY |
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