Good carbs for optimal health
Do you push away the breadbasket or opt out of any meal that includes macaroni? If so, chances are you are one of the millions of people watching your carbs, or carbohydrates.
May 1, 2024
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Do you push away the breadbasket or opt out of any meal that includes macaroni? If so, chances are you are one of the millions of people watching your carbs, or carbohydrates.
May 1, 2024
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A team of researchers from Aarhus University has made a remarkable discovery that could improve cancer treatment and the treatment of a number of other illnesses. Their research is published in the journal Nature Communications.
Apr 30, 2024
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Women with heart disease are less often treated with cholesterol-lowering drugs than men, according to research presented today at ESC Preventive Cardiology 2024, a scientific congress of the European Society of Cardiology ...
Apr 25, 2024
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An Australian researcher says we should consider cholesterol screening earlier in life, with his team's latest research showing that interventions to prevent and reduce "bad" cholesterol in childhood and young adulthood may ...
Apr 24, 2024
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Metabolic health (normal blood pressure, blood sugar and cholesterol levels, among other factors) influences the effectiveness of influenza vaccinations. Vaccination is known to be less effective in people with obesity compared ...
Apr 18, 2024
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Hundreds of thousands of people worldwide are taking drugs like Ozempic to lose weight. But what do we actually know about them? The Conversation's experts explore their rise, impact and potential consequences.
Apr 16, 2024
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A Dartmouth-led study suggests that people who frequently consume seafood may face an increased risk of exposure to PFAS, the family of ubiquitous and resilient human-made toxins known as "forever chemicals."
Apr 12, 2024
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A changing climate may be linked to growing death and disability from stroke in regions around the world, according to a study published in the April 10, 2024, online issue of Neurology.
Apr 10, 2024
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Usually, the word "cholesterol" prompts a negative reaction because of its role in cardiovascular disease. While this is true, cholesterol is also vital for cells to function correctly—for example, cholesterol is a component ...
Apr 9, 2024
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Among patients at high or very high risk for a heart attack or stroke, the addition of the investigational drug lerodalcibep to standard cholesterol-lowering medication for one year reduced LDL, or "bad" cholesterol, levels ...
Apr 8, 2024
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Cholesterol is a lipidic, waxy steroid found in the cell membranes and transported in the blood plasma of all animals. It is an essential component of mammalian cell membranes where it is required to establish proper membrane permeability and fluidity. Cholesterol is the principal sterol synthesized by animals, but small quantities are synthesized in other eukaryotes, such as plants and fungi. It is almost completely absent among prokaryotes, which include bacteria. Cholesterol is classified as a sterol.
Since cholesterol is essential for life, it is primarily synthesized de novo within the body. However excessive levels of cholesterol in blood circulation are strongly associated with progression of atherosclerosis. For an adult, typical total body cholesterol synthesis is about 1 gram per day (less if dietary intake is high) and total body cholesterol content is about 35 g. Average dietary intake in western societies is 0.2 - 0.3 grams. Cholesterol is excreted by the liver via the bile into the digestive tract. Typically about 50% of the excreted cholesterol is reabsorbed by the small bowel back into the blood stream.
The name cholesterol originates from the Greek chole- (bile) and stereos (solid), and the chemical suffix -ol for an alcohol, as François Poulletier de la Salle first identified cholesterol in solid form in gallstones, in 1769. However, it was only in 1815 that chemist Eugène Chevreul named the compound "cholesterine".
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