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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Pregnancy: When you have high blood pressure - MayoClinic.com High blood pressure and pregnancy â” Here's what you need to know. Pre-eclampsia â“ diagnosis and treatment: iVillage Measuring blood pressure levels:. A blood pressure greater than 140/90 in pregnancy is considered to be raised. Very high blood pressure would be greater Blood pressure in pregnancy: iVillage My question is: what is a normal blood pressure reading for pregnancy, and what level should my blood pressure reach consistently before I contact my GP? High Blood Pressure in Pregnancy How Common Are High Blood Pressure and Preeclampsia in Pregnancy? The effects of high blood pressure during pregnancy vary depending on the disorder and Pregnancy How Common Are High Blood Pressure and Preeclampsia in Pregnancy? How Can Women with High Blood Pressure Prevent Problems During Pregnancy? High Blood Pressure of Pregnancy - Patient UK However, any substantial rise in the blood pressure from a reading taken in early pregnancy is a concern, even if it does not get as high as the levels Pregnancy-induced high blood pressure (pre-eclampsia) Regular checks of blood pressure, protein levels in the urine and water retention are necessary into the last trimester of pregnancy to prevent Preeclampsia and High Blood Pressure During Pregnancy - Topic Mild-to-moderate long-term (chronic) high blood pressure during pregnancy is closely monitored, and blood pressure levels of 140/100 mm Hg and above may be High blood pressure during pregnancy planning to have baby pregnant Throughout your pregnancy you will need to have your blood pressure checked Blood pressure levels can rise sharply in the days following the delivery of ACOG Education Pamphlet AP034 -- High Blood Pressure During Pregnancy If the blood pressure does not increase to dangerous levels, pregnancy may be allowed to continue until labor begins naturally. Pregnancy week by week - pregnancy calendar - pregnancy stages High blood pressure during pregnancy is always of some concern. The blood pressure is at a higher level than expected, but not enough to require |
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