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.

complication of low blood pressure
Central Ohio Diabetes Association
Short-term Complications. Low blood sugar (hypoglycemia) is caused when there is People with diabetes need to keep blood pressure, cholesterol and sugar

stomach neuropathy - Juvenile Diabetes Forum
Health topic area and articles about diabetic complications Topics: gastroparesis Has anyone else experienced the problems with low blood pressure?

Diabetes Control and Complications Trial (DCCT)
Nevertheless, they underwent cardiograms, blood pressure tests, and laboratory treatment was an increase in the risk for hypoglycemia (low blood sugar)

Complications of Type 2 Diabetes and Reducing Your Risk of
People with type 2 diabetes usually have warning signs of low blood sugars. Quitting smoking and controlling your blood pressure are important

Dialysis patients can avoid serious complications by using
Dialysis patients can avoid serious complications by using medication that normally treats low blood pressure, Yale researcher reports

Diabetes Complications
high blood pressure. lower-limb amputations. eye disease (retinopathy). kidney disease. nervous system disorders. pregnancy complications

Step 10: Avoid long-term complications
Learn to keep track of the ABCs of diabetes -- A1C, blood pressure, (less than 6%) without significant episodes of low blood sugar (hypoglycemia).

The BVA-100 - Indications
This condition may be associated with low blood volume or disturbances in blood pressure control. Some patients may experience syncope, or a total loss of

Complications of a heart attack - Revolution Health
Complications of a heart attack. Date updated: January 16, 2007 If chest pain, breathlessness, or low blood pressure: electric shock to the chest

Complications: Problems in Pregnancy - iVillage
My blood pressure never rises above 90 over 55. I know that's low. However, now I am having fainting spells, dizziness and my heart is adding extra beats.

Complications of a heart attack - Yahoo! Health
Complications of a heart attack. Provided by: Healthwise If chest pain, breathlessness, or low blood pressure: electric shock to the chest

Medical Complications that can result from Eating Disorders
Medical complications due to an eating disorder often times have little to do with . Vitamin deficiencies, dehydration, infection and low blood pressure

Low blood pressure (hypotension): Screening and diagnosis
The goal in evaluating low blood pressure is to find the underlying cause. Some heart problems which can cause low blood pressure are easier to diagnose

Low blood pressure (hypotension) - CNN.com
Many people who have low blood pressure (hypotension) are healthy and have no . Far more serious is hypovolemic shock, a life-threatening complication of

Low blood pressure is unlikely to be complication of dementia
We found no evidence, however, that low blood pressure is a complication of the clinical dementia process in people with Down's syndrome.

BMJ BestTreatments :: Conditions :: Heart attack :: Complications
Complications after a heart attack. In this section Abnormal heart rhythm Heart failure Low levels of oxygen in your blood Low blood pressure Chest pain

Introduction: Low Blood Pressure: Merck Manual Home Edition
If blood pressure is too high, it can damage a blood vessel and even rupture it, causing bleeding or other complications. If blood pressure is too low,

Low blood pressure (hypotension) - MayoClinic.com
Low blood pressure, also called hypotension, would seem to be something to Severely low blood pressure can deprive the brain and other vital organs of


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