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Related Concept Videos

Atherosclerosis I: Introduction01:30

Atherosclerosis I: Introduction

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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 II: Clinical Manifestations and Diagnostic Tests01:27

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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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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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Coronary Artery Disease (CAD) originates from a series of events that impair the function of coronary arteries, the blood vessels responsible for delivering oxygen-rich blood to the heart muscle. The pathophysiology of CAD is closely linked to atherosclerosis, a chronic inflammatory and lipid-driven condition affecting the vascular endothelium.1. Endothelial DamageThe process begins with damage to the vascular endothelium, which serves as a protective barrier between the blood and the vessel...
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Coronary Artery Disease (CAD): An Overview with Scientific InsightsCoronary Artery Disease (CAD), often referred to as C-A-D, is a prevalent blood vessel disorder classified under the broader category of atherosclerosis. Atherosclerosis is a pathological process characterized by the hardening and narrowing of arteries due to the accumulation of atherosclerotic plaques. These plaques are composed of cholesterol, fatty substances, inflammatory cells, calcium, and fibrin, reducing blood flow to...
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Danger signaling in atherosclerosis.

Sebastian Zimmer1, Alena Grebe1, Eicke Latz2

  • 1From the Medizinische Klinik und Poliklinik II (S.Z.) and Institute of Innate Immunity (A.G., E.L.), University Hospitals Bonn, Bonn, Germany; Department of Infectious Diseases and Immunology, University of Massachusetts Medical School, Worcester (E.L.); and German Center of Neurodegenerative Diseases (DZNE), Bonn, Germany (E.L.).

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Inflammation drives atherosclerosis pathogenesis. Innate immunity mechanisms sensing triggers like microbes and metabolic issues contribute to vascular plaque inflammation, offering therapeutic targets.

Keywords:
atherosclerosiscardiovascular diseasesinflammationinnate immunitypattern recognition receptors

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Area of Science:

  • Cardiovascular Science
  • Immunology
  • Pathogenesis Research

Background:

  • Atherosclerosis pathogenesis is significantly influenced by inflammatory responses within vascular plaques.
  • Recent decades of innate immunity research have revealed mechanisms by which immune cells detect microbes, tissue damage, and metabolic changes.

Purpose of the Study:

  • To summarize triggers of innate immunity during atherogenesis.
  • To elucidate pathways through which these triggers contribute to inflammation in atherosclerotic plaques.

Main Methods:

  • Review of recent research in innate immunity and atherosclerosis.
  • Analysis of mechanisms linking immune cell sensing to inflammatory pathways in vascular plaques.

Main Results:

  • Identification of key innate immunity triggers involved in atherogenesis.
  • Elucidation of specific pathways contributing to inflammation in atherosclerotic lesions.

Conclusions:

  • Understanding immune activation in atherosclerosis pathogenesis offers novel therapeutic targets.
  • The central role of inflammation in cardiovascular disease is under clinical evaluation, prompting further research.