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Related Concept Videos

Coronary Artery Disease II: Pathophysiology01:26

Coronary Artery Disease II: Pathophysiology

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...
Diabetic Retinopathy01:27

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DefinitionDiabetic retinopathy is a microvascular complication of diabetes affecting the retinal blood vessels.Risk FactorsDiabetic retinopathy is present in almost all individuals with type 1 diabetes and more than 60% of those with type 2 diabetes after two decades of disease.The risk increases with poor glycemic control, hypertension, dyslipidemia, smoking, pregnancy, and puberty.Although cataracts and glaucoma are also more frequent in people with diabetes, retinopathy remains the leading...
Peripheral Artery Disease I: Introduction01:30

Peripheral Artery Disease I: Introduction

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...
Hypertension II: Pathophysiology01:29

Hypertension II: Pathophysiology

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,...
Coronary Artery Disease I: Introduction01:30

Coronary Artery Disease I: Introduction

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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Related Experiment Video

Updated: Jun 28, 2026

Ultrasound Assessment of Endothelial Function: A Technical Guideline of the Flow-mediated Dilation Test
06:35

Ultrasound Assessment of Endothelial Function: A Technical Guideline of the Flow-mediated Dilation Test

Published on: April 27, 2016

[Endothelial dysfunction: pathophysiology, diagnosis and prognosis].

T Münzel1

  • 1II. Medizinische Klinik, Johannes Gutenberg Universität Mainz, Mainz. tmuenzel@uni-mainz.de

Deutsche Medizinische Wochenschrift (1946)
|November 14, 2008
PubMed
Summary
This summary is machine-generated.

Endothelial dysfunction, an early sign of vascular damage, is linked to cardiovascular risks. Antioxidants like vitamin C can reverse this dysfunction, highlighting the role of reactive oxygen species.

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Assessing Endothelial Vasodilator Function with the Endo-PAT 2000
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Assessing Endothelial Vasodilator Function with the Endo-PAT 2000

Published on: October 15, 2010

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Last Updated: Jun 28, 2026

Ultrasound Assessment of Endothelial Function: A Technical Guideline of the Flow-mediated Dilation Test
06:35

Ultrasound Assessment of Endothelial Function: A Technical Guideline of the Flow-mediated Dilation Test

Published on: April 27, 2016

Assessing Endothelial Vasodilator Function with the Endo-PAT 2000
07:46

Assessing Endothelial Vasodilator Function with the Endo-PAT 2000

Published on: October 15, 2010

Area of Science:

  • Vascular Biology
  • Cardiovascular Medicine

Context:

  • Endothelial dysfunction is an early indicator of vascular damage.
  • It is prevalent in individuals with cardiovascular risk factors like hypertension, diabetes, hypercholesterolemia, and smoking.
  • A family history of cardiovascular disease is also associated with endothelial dysfunction.

Purpose:

  • To summarize the current understanding of endothelial dysfunction.
  • To highlight its role as an early marker of vascular damage.
  • To discuss its relationship with cardiovascular risk factors and potential therapeutic interventions.

Summary:

  • Endothelial dysfunction, a key factor in vascular tone regulation, is an early sign of vascular damage associated with cardiovascular risk factors.
  • It can be assessed using invasive and noninvasive methods.
  • Acute administration of antioxidants, such as vitamin C, can correct endothelial dysfunction, indicating the involvement of reactive oxygen species.

Impact:

  • Endothelial dysfunction serves as a prognostic indicator for future cardiovascular events.
  • Understanding its mechanisms, particularly the role of reactive oxygen species, is crucial for developing preventative strategies.
  • Further research is needed to clarify its role in primary cardiovascular prevention.