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Related Concept Videos

Coronary Artery Disease II: Pathophysiology01:26

Coronary Artery Disease II: Pathophysiology

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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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Peripheral Artery Disease I: Introduction01:30

Peripheral Artery Disease I: Introduction

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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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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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Hypertension II: Pathophysiology01:29

Hypertension II: Pathophysiology

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Hypertension is a chronic condition in which the blood's force against artery walls is excessively high, posing risks such as heart disease. The condition's underlying mechanisms involve complex interactions among the cardiovascular, kidney, and autonomic nervous systems.Renin-Angiotensin-Aldosterone System (RAAS): This system significantly influences blood pressure regulation. When blood pressure decreases, the kidneys secrete renin. This enzyme transforms angiotensinogen, a plasma protein,...
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Hypertension III: Clinical Manifestations and Diagnostic Studies01:30

Hypertension III: Clinical Manifestations and Diagnostic Studies

191
Hypertension is asymptomatic and also referred to as the "silent killer" until it progresses to a severe stage or causes target organ disease. Patients may experience symptoms stemming from the strain on blood vessels and tissues in various organs or the heart's increased workload.Physical exams might show no abnormalities other than high blood pressure. Signs of vascular damage, when present, correspond to the organs supplied by the affected vessels, leading to target organ damage. For...
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Coronary Artery Disease I: Introduction01:30

Coronary Artery Disease I: Introduction

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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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Ultrasound Assessment of Endothelial Function: A Technical Guideline of the Flow-mediated Dilation Test
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Endothelial Dysfunction and Its Clinical Implications.

Pavel Poredos1,2, Aleksandra Visnovic Poredos3, Igor Gregoric2

  • 1Department of Vascular Disease, 37663University Medical Centre Ljubljana, Slovenia.

Angiology
|January 28, 2021
PubMed
Summary
This summary is machine-generated.

Endothelial dysfunction (ED), a key factor in atherosclerosis, is linked to cardiac events. Reversing ED through risk factor elimination and lifestyle changes can restore vascular function.

Keywords:
endothelial dysfunctioninvestigation of endothelial functionrisk factorstherapeutic intervention

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Area of Science:

  • Vascular Biology
  • Cardiovascular Disease Pathogenesis

Background:

  • Endothelial dysfunction (ED) is integral to atherosclerosis and other vascular diseases.
  • ED is observed in conditions like hypercholesterolemia, diabetes, hypertension, smoking, and infections.
  • Key causes of ED include oxidative stress, inflammation, and altered shear stress, reducing nitric oxide bioavailability.

Purpose of the Study:

  • To explore the role of endothelial dysfunction in vascular diseases.
  • To identify markers for evaluating risk factor impact and treatment efficacy on endothelial function.
  • To highlight endothelial dysfunction as a therapeutic target in atherogenesis.

Main Methods:

  • Review of literature on endothelial dysfunction causes and consequences.
  • Analysis of risk factors contributing to ED.
  • Examination of therapeutic strategies for reversing ED.

Main Results:

  • Endothelial dysfunction is directly correlated with cardiac event occurrence, with risk escalating as ED worsens.
  • Circulating markers can assess the impact of risk factors and treatments on endothelial function.
  • ED is reversible and treatable.

Conclusions:

  • Eliminating risk factors, smoking cessation, and adopting healthy lifestyle choices (diet, exercise) can reverse ED.
  • Pharmacological interventions like ACE inhibitors and lipid-lowering drugs aid in improving endothelial function.
  • Restoring endothelial function is achievable by addressing ED and its underlying causes.