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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Migraines Headaches: Overlooked Causes and Possible Treatments High blood pressure can cause headaches and I suspect they are factor in migraine headaches, too. While it isn't a common view within the medical profession Migraines Raise Stroke Risk - Health and Medical Information Kittner says that people with migraine -- especially young women -- should also "stop smoking, make sure their blood pressure is well controlled, sumatriptan - Migraine Headaches and Other Neurological Disorders PRESCRIBED FOR: Sumatriptan is used to relieve migraine and its associated Sumatriptan can cause elevation of blood pressure and spasm of the coronary Migraine - Treatment - neurologychannel The goals of migraine treatment are to prevent or reduce the number of migraines Side effects include constipation, flushing, low blood pressure, rash, Migraine Issues Migraine Issues. Learn about migraine hedache treatements and "We show that a blood pressure-lowering drug seems to prevent headaches," said study Relationship between migraine, blood pressure and carotid The relationship between migraine and blood pressure is controversial. We studied the association between migraine and blood pressure in a population-based IngentaConnect Relationship between migraine, blood pressure and Relationship between migraine, blood pressure and carotid thickness. A population-based study in the elderly. Cephalalgia 2003; 23:914â“920. London. BBC - Health - Ask the doctor - Migraine link to stroke Migraine sufferers are at an increased risk of stroke. If your blood pressure is high, take treatment regularly as recommended by your doctor. Heading Off Migraine Pain Like someone with high blood pressure or heart disease, people with migraines should maintain a healthy lifestyle, including regular sleep patterns, The Migraine Relief Center The Migraine Relief Center: Learn about the differences between headaches and If you have risk factors for heart disease, such as high blood pressure, special applications stress thermometer, temperature biofeedback Stress-induced Migraine Headaches, High Blood Pressure, Arthritis, Stroke and Raynaudâ™s Syndrome Lack of blood flow to hands or feet resulting in extreme |
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