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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head pressure with ear ringing >> Medical Questions, Weight Loss Basically, head pressure, ear ringing that is especially awful at night (when it is quiet.) High cholesterol and low blood pressure. Re: Swelling, Dizziness, ear ringing In Reply to: Swelling, Dizziness, ear ringing posted by Dirk on June 30, A rare cause of high blood pressure and fatty deposits is steroid excess, InteliHealth: When blood pressure is very high, it can cause symptoms such as headaches, dizziness, fatigue and ringing in the ears. However, it often causes no symptoms. High Blood Pressure, Hypertension, High Cholesterol Forum Starts by hearing a ringing in my right ear, goes to loss of balance and sometimes nausea. Any ideas. History of high blood pressure and diabetes in the Tinnitus - Ringing in the Ears - Causes Symptoms and Treatments of Ringing in the Ears - Tinnitus - Ear Noise. From Phylameana lila Desy, Menieres Disease · otosclerosis; poor circulation; high-blood pressure Ringing in the Ears (Tinnitus) - Yahoo! Health Blood flow (vascular) problems, such as carotid atherosclerosis, AV malformations, and high blood pressure (hypertension). MedlinePlus Medical Encyclopedia: Tinnitus Ringing in the ears; Noises or buzzing in the ears; Ear buzzing Occasionally, it is a sign of high blood pressure, an allergy, or anemia. Tinnitus (ear ringing) information on MedicineNet.com Tinnitus may also be a symptom of more serious illnesses such as high blood pressure, anxiety/depression, diabetes, thyroid disorders, Ménière's disease, Tinnitus - CNN.com That causes blood flow to become more forceful and sometimes more turbulent, making it easier for your ear to detect the beats. High blood pressure. Tinnitus Tinnitus can also be a symptom of stiffening of the middle ear bones (otosclerosis). Tinnitus may also be caused by allergy, high or low blood pressure High Blood Pressure & Homeopathy high blood pressure cure permanently try it now â“ Dr. Deoshlok Sharma (85 replies) . ear; noises in ear; ringing; in one ear, burning in the other; ; |
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