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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MedlinePlus Medical Encyclopedia: Foot, leg, and ankle swelling Hormones like estrogen (in birth control pills or hormone replacement therapy) and testosterone; A group of blood pressure lowering drugs called calcium Foot, leg, and ankle swelling Abnormal buildup of fluid in the ankles, feet, and legs is called peripheral sometimes called toxemia, that includes high blood pressure and swelling Swollen Feet RE: Swollen Feet. Donna, do you have high blood pressure? If I don't take my meds for high blood pressure, my ankles swell. Also, perhaps cutting back on Swollen Feet During Pregnancy | AHealthyMe.com Can swollen feet ever be a sign that something is wrong? a type of pregnancy-related high blood pressure than can be very dangerous. Swollen Ankles and/or Swollen Feet Symptoms and Signs on Get the facts on the causes of swollen ankles and swollen feet, and learn about the medications used for treatment of ankle and foot swelling. Swollen Feet | Wide Foot Facts Usually swollen feet donâ™t indicate a problem, but it can signal preeclampsia. Preeclampsia is a type of pregnancy-related high blood pressure than can Are swollen feet and ankles normal toward the end of pregnancy My feet and ankles have been really swollen lately. For some reason, I thought this might be a sign of high blood pressure but my BP is always fine when I Swollen feet. | Henriette's Herbal Homepage Swollen feet. Newsgroups: alt.folklore.herbs Banana helps to lower blood pressure. Also have her take vitaimin B6 , deficient in this vitamin can cause - High Blood Pressure Second, he or she supports the goals of high blood pressure detection, Swollen feet: Persistent swelling of one or both feet may be due to kidney, Swollen Feet and Legs :: Causes, Symptoms & Treatments for Leg Read information on what causes swollen feet and legs at FootSmart, High blood pressure; Headaches; Increased urination; Palpitations; Swollen hands Foot Pain High Blood Pressure. High blood pressure can cause fluid buildup and swollen feet. The effects of high blood pressure on the nervous and circulatory systems |
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