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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Advanced chronic kidney disease (CKD): percent of patients with
Correcting anemia before the initiation of renal replacement therapy (RRT) may improve health outcomes. Blood pressure control often deteriorates with

Blood pressure in hemodialysis patients during amelioration of
Thus, compared with placebo, 21% of patients had clinically important increases in blood pressure during amelioration of anemia.

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bradycardia (slow heartbeat); hypotension (low blood pressure). hematological (blood) An estimated one-third of anorexic patients have mild anemia (low red

National Kidney Foundation: A to Z Health Guide Item
Complications may develop such as high blood pressure, anemia, weak bones, poor nutritional health, growth failure and nerve damage.

womenshealth.gov Glossary
Blood pressure is considered high when greater than 140 over 90 mm Hg .. sickle cell anemia: a blood disorder passed down from parents to children.

Blood Pressure Health Center
Anemia & Blood Disorders Ambulatory blood pressure monitoring or tilt table tests may be used to diagnose these conditions. There are many types of high

High blood pressure and heart attack information from iVillage
Read about high blood pressure, or hypertension, and heart attack risks at iVillage Total Health.com. Anemia & Blood Disorders

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High Blood Pressure and Anemia High blood pressure in children needs medical attention. Anemia may cause your child to grow slowly, tire easily,

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What is anemia? Description of herbal mixture for anemia treatment. Causes of Hypertension, high blood pressure, treatment details.

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Blood Investigations - Full blood count, Renal function tests, Liver Function, serum calcium, serum amylase and lipase, Arterial blood gas

Anemia Glossary - Hemoglobin, Hematocrit, Iron Deficiency
Diabetes and high blood pressure are two main causes of CKD. A drug frequently used to treat anemia. Darbepoetin alfa (trade name Aranesp^) is a

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Anemia The body_s red blood cells, with the help of hemoglobin, perform the critical role of transporting oxygen, which provides energy to every cell in the

About Kidney Disease & Diabetes / Anemia and Kidney Disease
They also control blood pressure and regulate red blood cell production. If your red blood cells decrease, anemia can develop. How is anemia diagnosed?

Medical College of Wisconsin Healthlink Topics: Blood/Blood Pressure
MCW HealthLink articles on Blood/Blood Pressure. Anemia occurs when the amount of red blood cells or hemoglobin in the blood becomes low.

Anemia and Blood pressure symptoms - Multiple Symptom Checker
List of causes of Anemia and Blood pressure symptoms, alternative diagnoses, rare causes, misdiagnoses, patient stories, and much more.

Orthostatic Hypotension
The heart pumps blood, and if there is too little blood volume (anemia, dehydration, dialysis), the pressure drops. The blood vessels in the body also can

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Anemia, Blood Disorders, THE MERCK MANUAL OF HEALTH & AGING
If anemia is due to sudden, excessive bleeding, two problems can result: Blood pressure falls because the amount of fluid left in the blood vessels is

Fainting: Low Blood Pressure: Merck Manual Home Edition
Problems With Blood Pressure: Fainting that occurs when a person sits or stands Many other disorders, such as a deficiency of red blood cells (anemia),


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