------------------------------------------------- Lipid Structures of some common lipids. At the top are cholesterol[1] and oleic acid.[2] The middle structure is a triglyceride composed of oleoyl‚ stearoyl‚ and palmitoyl chains attached to a glycerol backbone. At the bottom is the common phospholipid‚ phosphatidylcholine.[3] Lipids constitute a broad group of naturally occurring molecules that include fats‚ waxes‚ sterols‚ fat-solublevitamins (such as vitamins A‚ D‚ E‚ and K)‚ monoglycerides
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People are increasingly being warned against the ill effects of fast food and the potential damage they pose to the human health. The effects of fast food include nutritional deficiencies‚ obesity‚ increased cholesterol levels‚ cardiac problems and many other threatening heath hazards. Here is a reminder for your that will include shocking facts about fast food and the harmful effects of fast food. Effects of Fast Food: Sodium and Increased Blood Pressure Most of these quick and convenient
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saturated and unsaturated fatty acids. Saturated fatty acids - which come from animal fats (meat‚ lard‚ dairy products) as well as tropical oils such as coconut and palm oils - raise the levels of LDL cholesterol. Unsaturated fats - which come from vegetable oils - in general‚ do not increase cholesterol levels‚ and may reduce them. Because saturated fatty acids were found to be bad for you a couple decades ago‚ the food industry wanted to switch to using unsaturated fatty acids. Unfortunately‚ unsaturated
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Receptor-mediated endocytosis Receptor-mediated endocytosis is an important mechanism the body uses to remove cholesterol from the bloodstream. Persons with the inherited disease hypercholesterolemia lack normal LDL receptors and as a consequence‚ have dangerously high levels of circulating cholesterol. Their cells cannot remove circulating LDL particles‚ and so the load of cholesterol tends to accumulate on the walls of their arteries‚ which eventually blocks blood flow. Mammalian cells use receptor-mediated
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muscle both prefer to use fatty acids as their main energy source. Cholesterol and fat are used to replenish the body and should come from dietary sources. Cholesterol has multiple functions‚ one being in aiding in the structure of the cell membrane and helping it maintain permeability. The inside of a cell needs the cholesterol to help function normally as well. Cell growth becomes disrupted when the body becomes depleted of cholesterol. Such a disruption in growth can lead to cancer which is caused
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conducted in order to know how green tea reduce the risks of cardiovascular diseases. However‚ the results are inconsistent and the mechanisms remain unclear. In this review article‚ the potential mechanisms will be showed from five aspects: lowering cholesterol level‚ inhibiting oxidation of LDL‚ improving vascular endothelial function‚ decreasing blood pressure and having anti-atherosclerotic effect. In the discussion part‚ the adverse effects of high consumption of green tea will be showed. To sum up
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lipoprotein physiology and metabolism (Chapter 15). - Lipoproteins are a biochemical formation that aid with the transporting of lipids. The four major pathways include Lipid absorption pathway‚ exogenous pathway‚ endogenous pathway and reverse cholesterol transport pathway. All of these pathways are dependent on a particular particle know as apo-B that contains lipoproteins which‚ functions as a transport for dietary and Hepatic lipids to the outer layers of the cells. During the metabolism of these
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include your cholesterol‚ weight‚ and the fact that you are prediabetic. I would like to begin by explaining that contrary to what you heard on Dr. Oz‚ there is no such thing as lousy cholesterol. However‚ the levels of your total cholesterol along with the levels of its individual components have significant effects on your overall health. Relative to table 10.9 of the HSC 3211 textbook‚ your total cholesterol is borderline high. Furthermore‚ your LDL‚ often referred to as bad cholesterol‚ when calculated
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Living in the Shadow of Heart Disease In the United States‚ every year more than 1 million Americans suffer from a heart attack. This number although it may not seem like a lot‚ is indeed quite high. Heart disease is a major killer that can in fact be controlled. If more people would watch what they eat‚ do simple exercises‚ and restrict physically damaging activities‚ such as smoking‚ they could lower their risk of a heart attack or heart disease. Many people do things that short term‚ have little
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that cause malnutritional disorders such as starvation or obesity. The media have over-sensitized the importance of cholesterol in the diet as having negative consequences. Cholesterol is ingested as animal fat rich in saturated fatty acids‚ however‚ our
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