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Related Concept Videos

Lipid-Lowering Drugs: Statins and Miscellaneous Agents01:20

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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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Management of atherosclerosis involves an integrated strategy encompassing pharmacological treatment, surgical interventions, lifestyle changes, and nutrition therapy to address the multifactorial nature of the disease.Pharmacological TherapyA cornerstone of atherosclerosis management is the use of pharmacological agents. Statins, such as atorvastatin, are pivotal in inhibiting HMG-CoA reductase, an enzyme that catalyzes an initial step in cholesterol synthesis in the liver. This reduction in...
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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.
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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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Blood Studies for Cardiovascular System III: Serum Lipid Profile01:25

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Related Experiment Video

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LDL Cholesterol Uptake Assay Using Live Cell Imaging Analysis with Cell Health Monitoring
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Novel method for reducing plasma cholesterol: a ligand replacement therapy.

G M Anantharamaiah1, Dennis Goldberg2

  • 1Department of Medicine, Biochemistry & Molecular Genetics; University of Alabama at Birmingham, Birmingham, AL 35294, USA.

Clinical Lipidology
|May 5, 2015
PubMed
Summary
This summary is machine-generated.

New peptide therapy mimics apolipoprotein E (apoE) to clear atherogenic lipoproteins via an alternate pathway, offering a novel approach to reduce cardiovascular disease risk when statins are insufficient.

Keywords:
CVDHDLHMG-CoAHSPGLDL-cholesterolLDL-receptorPCSK-9SREBPVLDLalternate pathway for cholesterol clearanceapoBapoB-containing lipoproteinsapoE mimeticligand replacement therapymonoclonal antibodies

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Area of Science:

  • Biochemistry
  • Cardiovascular Medicine
  • Pharmacology

Background:

  • Despite statin use, cardiovascular disease (CVD) risk remains high.
  • High-density lipoprotein therapies have shown limited efficacy.
  • Novel methods for rapid plasma cholesterol reduction are needed.

Purpose of the Study:

  • To introduce a novel ligand replacement therapy targeting atherogenic lipoproteins.
  • To utilize an apolipoprotein E (apoE) mimetic peptide for lipoprotein clearance.

Main Methods:

  • Developed a peptide that replaces apoE as a ligand.
  • Leveraged the heparin sulfate proteoglycans pathway for lipoprotein clearance.
  • Designated as an orphan drug by the US FDA for clinical trials.

Main Results:

  • The novel peptide effectively targets and clears atherogenic lipoproteins.
  • This approach utilizes an alternative pathway to the low-density lipoprotein receptor.
  • The therapy demonstrated potential in preclinical studies.

Conclusions:

  • Ligand replacement apoE mimetic peptide therapy offers a promising new strategy for managing dyslipidemia.
  • This approach addresses the unmet need for effective treatments beyond statins.
  • Clinical trials are underway to evaluate the safety and efficacy of this novel therapy.