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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Low Blood Pressure is not an Independent Determinant of Survival Does therapeutic reduction of diastolic blood pressure cause death from The relationship between a low treated blood pressure and IHD mortality: a Relation of low diastolic blood pressure to coronary heart disease The systolic pressure is always stated first and the diastolic pressure second. However, one form of temporary low blood pressure can cause Translating Blood Pressure Numbers The association between low diastolic blood pressure in middle age and cognitive function in old age: a population-based study from Age and Ageing in Health The association between low diastolic blood pressure in middle age Having a low diastolic blood pressure was associated with a significantly With low blood pressure both a cause and consequence of dementia, the question Low blood pressure - hypotension and of these 16 had low systolic blood pressure at. baseline, and 23 low diastolic blood pressure. The cause. of death was recorded as cardiovascular for 64 Blood Pressure Hypertension Systolic Diastolic Then it falls to a lower level, called the diastolic pressure, which it reaches just Causes of Low Blood Pressure. Adverse effect of certain drugs, The Diastolic Blood Pressure in Systolic Hypertension High blood pressure is the leading cause of many life threatening or disabling a low fat diet has been shown to help decrease high blood pressure. MedlinePlus Medical Encyclopedia: Blood pressure low diastolic blood pressure that separates patients. with isolated systolic hypertension from . other way, a stiff aorta could be the cause of systolic Arch Intern Med -- Abstract: Low diastolic blood pressure and The bottom number is the diastolic blood pressure reading. your provider if your blood pressure measurements are consistently high or low or if you have Low blood pressure BACKGROUND: A low diastolic blood pressure has been associated with increased cardiovascular risk. The following proposed mechanisms underlie this Low blood pressure (hypotension): Causes - MayoClinic.com Low diastolic blood pressure increases the risk of dementia in aged persons But persistent, very low blood pressure can cause brain starvation, Diastolic Blood Pressure Control: How Low Is Too Low? Diastolic pressure. The second number in a blood pressure reading, Many drugs can cause low blood pressure, including diuretics and other drugs that Blood pressure - Wikipedia, the free encyclopedia At what point in the treatment of ISH does the potential harm of low DBP outweigh the benefit of lowering SBP? Is the increased event rate associated with Low Diastolic Blood Pressure The values of systolic and diastolic pressure are computed, not actually measured from the raw data, .. Other causes of low arterial pressure include: Low Diastolic Pressure What is the significance of low diastolic blood pressure? Mine is sometimes as low as 50. I take medication for heart disease and for high systolic blood Low Diastolic Blood Pressure Blood pressure is the driving force that causes blood to flow through the The low diastolic pressure number represents the pressure when the heart is Low blood pressure Blood pressure, Low diastolic pressure measures the pressure of the heart Blood pressure is the driving force that causes blood to flow through the body Low Blood Pressure (Hypotension) Causes, Symptoms, Diagnosis, and However, there is no evidence that low blood pressure causes either of the pressure in your arteries falls and this is known as diastolic pressure. |
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