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.

conditions involving low blood pressure
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Favorable blood pressure profile for naproxcinod in an Ambulatory Blood with arthritis and other conditions involving pain and inflammation but are also

HealthWise Article - Lifestyle Changes Are Best Defense Against
Stop smoking, watch your weight, keep blood pressure and cholesterol readings a includes stroke and other diseases or conditions involving hemorrhage or

2002.05.16: Kaufmann Testimony on Stress Management in Reducing
Atherosclerosis in coronary arteries is a complex condition involving of stress management on blood pressure reduction, a condition that has been

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If the condition is not properly treated, the patient may develop eclampsia If the preeclampsia is mild and blood pressure is adequately controlled with

ICD-9-CM International Coding Standard
781 Symptoms involving nervous & musculoskeletal systems. 781.0 Abnormal involuntary movements 796.3 Nonspecific low blood pressure reading

Isradipine - Yahoo! Health
other diseases of the heart or blood vessels such as congestive heart failure, low blood pressure, or coronary artery disease; or; a condition involving

The Dana Foundation - Dizziness and Vertigo
Physicians can treat the low blood pressure with fluorohydrocortisone or midodrine Parkinsonism, and diseases involving the cerebellum or frontal lobes.

Hypertension in Pregnancy
This is a much more dangerous condition than chronic hypertension, because there is much more alteration in the maternal body than just high blood pressure.

Conn's Syndrome / Cushing's Help and Support
Conn's syndrome is a disease of the adrenal glands involving excess production Thus, high blood pressure and low blood potassium may be due to essential

Health Search
Some heart conditions strike without any warning and 3000 people die every But low blood pressure can also wreak havoc on one's health and ability to

EVALUATION OF METHODS OF RESUSCITATION* conditions which progress
conditions which progress to a state involving impairment of . of fixing blood pressure manometer to wrist for extemporaneous pressure control

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High blood pressure (hypertension) occurs when your blood moves through your It is a condition involving the combination of risk factors for heart

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Bartterâ™s syndrome (BS) is a group of conditions involving enlargement of certain Even so, the blood pressure of people with Bartter syndrome is normal.

Your High Blood Pressure Questions Answered â” Low Blood Pressure
Among the heart conditions that can lead to low blood pressure are an abnormally low heart rate (bradycardia), problems with heart valves, heart attack and

Addison's disease - CNN.com
Doctors refer to the condition involving damage to the adrenal glands as primary results in low blood pressure, low blood levels of sugar and high blood

Low blood pressure (hypotension) - MayoClinic.com
And it's true that for some people â” those who exercise and are in top physical condition â” low blood pressure is a sign of health and fitness.

Low Blood Pressure (Hypotension) Causes, Symptoms, Diagnosis, and
Learn about low blood pressure (hypotension) is blood pressure below normal. There are many causes of low blood pressure, and treatment is dependant


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