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Atherosclerosis I: Introduction01:30

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Atherosclerosis is a progressive disorder characterized by the buildup of plaques on the arterial inner wall, causing them to narrow and harden over time. These plaques comprise lipids, calcium, blood components, carbohydrates, and fibrous tissue. The process primarily affects the intima of large and medium-sized arteries, reducing blood flow in any artery.Etiology and risk factorsThe cause of atherosclerosis is multifactorial, involving a complex interplay among endothelial injury, lipid...
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Atherosclerosis is a progressive disorder that leads to the thickening and narrowing of arterial walls due to plaque buildup. This condition can cause various symptoms depending on the arteries affected:Coronary Artery Disease (CAD): This condition affects the coronary arteries and may lead to chest pain (angina), shortness of breath (dyspnea), heart attacks, and other heart disease symptoms.Cerebrovascular Disease: This affects blood flow to the brain, causing transient ischemic attacks (TIAs)...
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Nursing management for a patient with arteriosclerosis involves a comprehensive approach focusing on lifestyle modification, disease monitoring, education, and symptomatic care. Here is an overview of effective nursing strategies:Assessment and Monitoring: Initial and ongoing assessments are crucial. Nurses must document the patient's medical history, including any hypertension, diabetes, hyperlipidemia, and other cardiovascular diseases. Assessments also cover family history and lifestyle...
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Peripheral Artery Disease I: Introduction01:30

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Peripheral artery disease (PAD) predominantly results from atherosclerosis, which involves the accumulation of fatty deposits, or plaques, within the walls of arteries. This causes them to narrow and harden, significantly reducing blood flow. PAD predominantly affects the legs, particularly the arteries supplying the thighs and calves. In rare cases, it may involve other arteries, including those in the arms.Etiology of PAD:The principal cause of PAD is atherosclerosis, which results from fatty...
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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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Related Experiment Video

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Three-Dimensional Imaging of Aortic Tissues in Atherosclerosis
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(Re)solving atherosclerosis.

Oliver Soehnlein1

  • 1Institute for Cardiovascular Prevention (IPEK), Ludwig Maximilian University Munich, Munich Germany. Academic Medical Center, Amsterdam, Netherlands. German Centre for Cardiovascular Research, partner site Munich, Munich Germany.

Science Translational Medicine
|February 20, 2015
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Summary
This summary is machine-generated.

Nanoparticles carrying the annexin A1 fragment Ac2-26 were delivered to arteries, significantly reducing signs of unstable lesions in a mouse model of advanced atherosclerosis.

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Area of Science:

  • Biomedical Engineering
  • Cardiovascular Research
  • Nanomedicine

Background:

  • Atherosclerosis is a chronic inflammatory disease characterized by plaque buildup in arteries.
  • Plaque instability is a major risk factor for cardiovascular events like heart attack and stroke.
  • Developing targeted therapies to stabilize atherosclerotic lesions is crucial.

Purpose of the Study:

  • To investigate the therapeutic potential of annexin A1 fragment Ac2-26 delivered via nanoparticles.
  • To evaluate the effect of Ac2-26-loaded nanoparticles on the stability of atherosclerotic lesions in a preclinical model.

Main Methods:

  • Nanoparticles engineered for arterial tropism were loaded with the annexin A1 fragment Ac2-26.
  • These nanoparticles were administered to a mouse model of advanced atherosclerosis.
  • Lesion instability markers were assessed post-treatment.

Main Results:

  • Delivery of nanoparticles containing Ac2-26 demonstrated a reduction in signs of lesion instability.
  • The treatment showed targeted effects within the arterial environment.
  • This suggests a potential mechanism for stabilizing atherosclerotic plaques.

Conclusions:

  • Arterial-targeted delivery of annexin A1 fragment Ac2-26 via nanoparticles is a promising strategy.
  • This approach effectively reduces indicators of atherosclerotic lesion instability in a mouse model.
  • Further research may explore this nanomedicine approach for treating human atherosclerosis.