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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GHI - Health & Wellness: Low Blood Pressure (The Basics)
Hypotension is the medical term for low blood pressure (less than 90/60). Hormonal problems such as an underactive thyroid (hypothyroidism),

Matrix of Signs and Symptoms of low adrenal and thyroid function
In pure hypothyroidism, vitiligo and hyperpigmentation are very rare. Blood Pressure, Tends to run low, e.g., from 80/50 at the low end to 110/70 at the

HEART & BLOOD VESSEL DISORDERS - Hypotension (Low Blood Pressure)
Hypotension is abnormally low blood pressure. Normal blood pressure is a reading of . Endocrine conditions, such as hypothyroidism (underactive thyroid),

Hypothyroidism
Amount of Exercise Key to Lowering Kids' Blood Pressure the physician will probably order blood tests. A low T4 and a high TSH indicates hypothyroidism.

Low blood pressure (hypotension) - Yahoo! Health
High blood pressure's neglected sibling, low blood pressure (hypotension) or hypothyroidism, for example — rather than low blood pressure itself.

Chronic Fatigue Syndrome, Fibromyalgia, and Autoimmune Thyroid Disease
Low blood pressure Neck pain/neck aches Who Gets CFS, FMS and HAIT? The majority of diagnosed cases of CFS Abdominal Swelling and Hypothyroidism: H..

Low Thyroid Treatment - Hypothyroid Treatment - Thyroxine - T3
Low thyroid function or hypothyroidism can underlie many health complaints. Frequent infections; Slow pulse and/or low blood pressure; Dizziness,

Epidural Blood Patch for Headache After Lumboperitoneal Shunt
In this case, a 17-yr-old girl had symptoms of a low-pressure headache after LP shunt placement alleviated by an epidural blood patch.

Epidural Blood Patch for Headache After Lumboperitoneal Shunt
was significant for hypothyroidism, for which she took levo-. thyroxine. benefit ratio of epidural blood patch for low-pressure

Low Blood Pressure and Hypothyroidism
Blood pressure problems can be related to all sorts of different disorders, and today weâ™ll take a look at low blood pressure and hypothyroidism.

Stop The Thyroid Madness » Blood Pressure and Hypothyroidism can
At first, itâ™s common to have LOW blood pressure due to your thyroid in blood pressure homeostasis: evidence from short-term hypothyroidism in humans.

The Heart and the Thyroid Gland
These tend to be the opposite to those mentioned above for an overactive thyroid gland and consist of slow heart rate and low blood pressure.

Low blood pressure - WebMD
Learn about low blood pressure, also known as hypotension. thyroid (hypothyroidism), overactive thyroid (hyperthyroidism), diabetes, or low blood sugar

Low blood pressure (hypotension) - CNN.com
Many people who have low blood pressure (hypotension) are healthy and have no . or hypothyroidism, for example â” rather than low blood pressure itself.

Hypothyroidism
Symptoms of severe hypothyroidism include:. Extremely low blood pressure; Slow heartbeat; Very slow breathing; Very low temperature

MedlinePlus Medical Encyclopedia: Hypothyroidism
Vital signs may show slow heart rate, low blood pressure, and low temperature. in primary hypothyroidism, low or low-normal in secondary hypothyroidism)

MedlinePlus Medical Encyclopedia: Hypothyroidism - secondary
Unresponsiveness; Decreased breathing; Low blood pressure; Low blood sugar; Below-normal temperature. Other complications of hypothyroidism include:

Your High Blood Pressure Questions Answered â” Low Blood Pressure
Is low blood pressure dangerous, and how low is too low? These include an underactive or overactive thyroid (hypothyroidism and hyperthyroidism),

Low blood pressure (hypotension): Causes - MayoClinic.com
An underactive thyroid (hypothyroidism) or overactive thyroid (hyperthyroidism) can cause low blood pressure. In addition, other conditions, such as adrenal


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