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Related Concept Videos

Cholesterol: Significance and Regulation01:29

Cholesterol: Significance and Regulation

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Although not a source of energy, cholesterol plays a significant role as a foundational structure for bile salts, steroid hormones, and vitamin D, as well as being a crucial component of plasma membranes. Approximately 15% of blood cholesterol is derived from our diet, with the remainder synthesized from acetyl CoA by the liver and intestines. Cholesterol is eliminated from the body through its conversion into bile salts, which are eventually discarded in the feces.
Considering cholesterol and...
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Blood Studies for Cardiovascular System III: Serum Lipid Profile01:25

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Understanding serum lipids is crucial for maintaining cardiovascular health and preventing heart disease and stroke.
Serum lipids are fats and fatty substances in the blood and are crucial for various bodily functions, including energy storage, cellular structure, and hormone production. Serum lipids consist of cholesterol, triglycerides, and phospholipids.
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Lipids: Dietary Sources and Requirements01:18

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Lipids are an essential component of a balanced human diet. Triglycerides, which make up the majority of dietary lipids, are found in both saturated fats—commonly present in meat, dairy products, and certain tropical plants like coconut, and hydrogenated oils such as margarine and baking shortenings (trans fats)—and unsaturated fats, which are abundant in seeds, nuts, olive oil, and most vegetable oils. The main sources of cholesterol include egg yolks, various meats and organ...
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Hyperlipidemia, a medical condition often referred to as high cholesterol, is characterized by abnormally elevated levels of lipids in the bloodstream. When present in excess, these lipids, specifically cholesterol and triglycerides, can lead to serious health complications, often involving cardiovascular diseases. Illnesses like atherosclerosis, heart attacks, and pancreatitis have all been linked to untreated hyperlipidemia. This means controlling and regulating cholesterol and triglyceride...
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Lipid Absorption01:24

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Dietary triglycerides from chyme in the duodenum are mixed with bile salts produced by the liver to emulsify fats. As a result, large droplets are broken down into smaller ones, increasing the surface area for enzymatic action. Once emulsified, pancreatic lipases hydrolyze the triglycerides into free fatty acids and monoglycerides.
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Fats and lipids are crucial components in the human body. Some lipid-derived compounds, such as fat-soluble vitamins, eicosanoids, lipoproteins, and glycolipids, also play unique roles to support various  biological processes .
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Cholesterol Efflux Assay
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Think Again About Cholesterol Survey.

Alberico L Catapano1, Olov Wiklund2,

  • 1Department of Pharmacological and Biomolecular Sciences, University of Milan, IRCCS Multimedica, Milan, Italy.

Atherosclerosis. Supplements
|December 17, 2015
PubMed
Summary

Many Europeans underestimate cholesterol's role in heart disease, with a significant portion unaware of their LDL-C levels or familial hypercholesterolemia, highlighting a critical need for public education on cardiovascular disease risk factors.

Keywords:
Cholesterolfamilialhigh-density lipoproteinhypercholesterolemialow-density lipoprotein

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Area of Science:

  • Cardiology
  • Public Health
  • Epidemiology

Background:

  • Cardiovascular disease (CVD) remains Europe's leading cause of mortality.
  • Elevated low-density lipoprotein cholesterol (LDL-C) is a primary risk factor for CVD, particularly coronary heart disease.
  • Misinformation regarding cholesterol and CVD contributes to poor adherence to lipid-lowering therapies.

Purpose of the Study:

  • To assess public perception of cholesterol, CVD, and cholesterol reduction strategies.
  • To identify knowledge gaps and misconceptions surrounding cholesterol and related health conditions.

Main Methods:

  • A survey was commissioned by the European Atherosclerosis Society (EAS) to investigate public awareness and beliefs.
  • The survey targeted individuals over 25 years of age, assessing their concerns, perceived risk factors, and knowledge of cholesterol and familial hypercholesterolemia.

Main Results:

  • Cancer is a greater concern (45%) than heart disease (27%) for the public.
  • Overweight (72%), blood pressure (70%), and smoking (67%) are perceived as greater heart health influencers than cholesterol (59%).
  • Despite recognizing high LDL-C as a priority, 25% believe it's only a concern when symptoms appear.
  • 92% of adults are unaware of their LDL-C levels or have never been tested.
  • 63% have never heard of familial hypercholesterolemia, with significant regional variations in awareness and understanding of its link to high LDL-C.

Conclusions:

  • The survey reveals substantial public misinformation regarding cholesterol's role in CVD.
  • There is a critical need for enhanced public education on cholesterol management and familial hypercholesterolemia.
  • Improved awareness is essential for better adherence to lipid-lowering therapies and CVD prevention.