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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WikiAnswers - What might cause dizziness nausea and a blood What might cause dizziness nausea and a blood pressure spike from 134 over 58 to 226 over 87 in a very healthy 78-yr-old female and tests indicate no stroke Blood pressure readings - taking your vital signs Other environmental factors, such as an extra cup of coffee or a stressful commute, can temporarily spike your blood pressure. Study: Sibutramine found to not trigger spike in blood pressure Contrary to previous studies, new research suggests obese people taking the weight management medication sibutramine are not likely to experience a spike in spiking blood pressure - Hepatitis - MedHelp This is a discussion on MedHelp about spiking blood pressure. Community members of MedHelp provide help, support, guidance and discussion around the topic Caffeine: How does it affect blood pressure? - MayoClinic.com Among people who don't consume caffeine on a regular basis, caffeine can cause a temporary but sharp rise in blood pressure. Exactly what causes this spike VHL Not So Rare After All Then one of his teenage sons developed high blood pressure which would "spike" up to extremely high levels. One of his pediatricians identified the cause of Night Twitches Spike BP in Restless Leg Syndrome Researchers say significant blood-pressure changes in people with periodic leg Nocturnal blood pressure changes in patients with restless legs syndrome. Why does blood pressure spike higher than usual when you wake up Why does blood pressure spike higher than usual when you wake up in the morning? Inherently Ridiculous: But a Blood Pressure Spike Nonetheless But a Blood Pressure Spike Nonetheless. The Scene: Alii and I, chillin' on the couch, enhancing our educational experience, happy, calm, minding our own <! -- insert name of symposium followed by name of talk here But does spiking of blood pressure during the day due to stress damage the kidneys and other organs? Dr. Toto: You want to know if the spiking can harm the Prehypertension: Early-stage High Blood Pressure- WebMD The next day, I woke up in a blood pressure danger zone. What happened? My blood pressure didn't spike overnight; instead, government officials issued Drug furosemide found in this post: Blood pressure spiking again I thought my blood pressure was getting under control with the increase in meds, but today it's spiking again. The last time it did this, my doc did lots of sudden spikes in blood pressure Archive - HealthBoards.com My husband has been experiencing episodes in which his pulse rate drops rapidly accompanied by a spike in blood pressure from normal readings to as high as Stress-induced blood pressure spike linked to increased stroke risk âœWeâ™ve found that exaggerated blood pressure reactions to stress are related to a greater risk of having a stroke. This is an important area of research to Stress-Induced Blood Pressure Spike Linked To Increased Stroke Risk For the first time, stress has been linked to increased stroke risk in a population study of middle-aged white men, researchers report in the June issue of Women and High Blood Pressure | AHealthyMe.com Even sitting up made her blood pressure spike, she says, sometimes by 10 points. Highway to heart disease. The risk of high blood pressure also increases as Exercise Hypertension Hypertension is persistent abnormally high blood pressure which, systolic blood pressure of around 200 mmHg at maximal exercise rates, they may spike at Re: Spiking Blood Pressure - High & Low Blood PressureMessage In Reply to: Re: Spiking Blood Pressure posted by Dave Smith on January 20, 2000 at 12:26:00:. : : : Hi! I'm a 44 y/o female with Fibromyalgia (severe) In |
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