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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Symptoms of Low Blood Pressure Low Blood Pressure also known as Hypotension is defined as a significant drop in the pressure of the blood in the body. There are a variety of symptoms Sudden blood pressure drop in the elderly could be onset of Sudden blood pressure drop in the elderly could be onset of Alzheimer's If so, perhaps low blood pressure may be one of the symptoms of dementia onset. Sudden drop in blood pressure - WrongDiagnosis.com Sudden drop in blood pressure information including symptoms, causes, diseases, symptoms, treatments, and other medical and health issues. Hypotension - Symptoms, Diagnosis, Treatment of Hypotension - NY When you have symptoms from a drop in blood pressure, you should immediately sit or lie down and raise your feet above heart level. If low blood pressure The Caregiver's Home Companion - Sudden Blood Pressure Drop Could A sudden drop in blood pressure in the elderly could indicate the onset of pointing to low blood pressure as one of the symptoms of dementia onset. Low Blood Pressure, Reading, Symptoms of - Guide4Living Low blood pressure may result in symptoms such as lethargy, dizziness and When blood pressure levels drop too low, blood supplies to the brain and vital Low Blood Pressure Symptoms - What are the Symptoms of Low Blood Unlike high blood pressure symptoms, which are poorly defined and often do not require the blood pressure to drop to 90/60 before symptoms develop. Blood Pressure Drop During Bypass Might Impair Thinking Site offers latest news and expert advice on heart disease symptoms, treatment, and prevention Blood Pressure Drop During Bypass Might Impair Thinking High blood pressure (hypertension) What are the symptoms? One of the big problems with high blood pressure is . the brain that relax the blood vessels, causing the blood pressure to drop. Low Blood Pressure Symptoms The cool-down causes blood pressure to drop sufficiently and the heart rate to Low Blood Pressure Symptoms. EzineArticles. Retrieved January 06, 2008, Hypotension - Wikipedia, the free encyclopedia A small drop in blood pressure, even as little as 20 mmHg, can result in edit Symptoms. The cardinal symptom of hypotension is lightheadedness or Blood pressure symptoms and Foot drop - Multiple Symptom Checker List of 327 causes for Blood pressure symptoms and Foot drop, alternative diagnoses, rare causes, misdiagnoses, patient stories, and much more. Your High Blood Pressure Questions Answered â” Low Blood Pressure Unlike orthostatic hypotension, this disorder causes blood pressure to drop after standing for long periods, leading to symptoms such as dizziness, Low blood pressure Sudden drop in pressure or further drop in pressure in low pressure patients for low blood pressure, unless otherwise it shows symptoms like dizziness, Low Blood Pressure or Hypotension Symptoms, Cure, Cause, Treatment Low Blood Pressure or Hypotension Infomation on Signs, Symptoms, Cause & Treatment Micturition syncope is a temporary drop in blood pressure and loss of Low blood pressure (hypotension): Causes - MayoClinic.com It occurs when low blood volume causes a sudden drop in blood pressure and a blood pressure to drop after standing for long periods, leading to symptoms Low Blood Pressure (Hypotension) Causes, Symptoms, Diagnosis, and Low blood pressure symptoms may include: lightheadedness, dizziness, fainting upon there often is a marked drop in blood pressure upon standing, Low Blood Pressure (Hypotension) Causes, Symptoms, Diagnosis, and Low blood pressure symptoms may include: lightheadedness, dizziness, Postural (orthostatic) hypotension is a sudden drop in blood pressure when an Low blood pressure Therefore, if you have a low blood pressure and you also have symptoms of This drop in blood pressure when you stand up is called postural hypotension. |
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