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Related Concept Videos

Regulation of Angiogenesis and Blood Supply01:24

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Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits.  Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
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Related Experiment Video

Updated: May 4, 2026

Ultrasound Assessment of Endothelial Function: A Technical Guideline of the Flow-mediated Dilation Test
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[Endothelial function: role, assessment and limits].

C Puissant1, P Abraham2, S Durand3

  • 1Service des explorations fonctionnelles vasculaires, centre hospitalier universitaire, 49933 Angers cedex 9, France.

Journal Des Maladies Vasculaires
|December 21, 2013
PubMed
Summary
This summary is machine-generated.

Detecting endothelial dysfunction, an early sign of cardiovascular disease, is crucial. This review explores methods for assessing endothelial function, highlighting the need for improved, non-invasive techniques.

Keywords:
Endothelial functionFonction endothélialeLasersMethodsMéthodes

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Area of Science:

  • Cardiovascular Science
  • Vascular Biology
  • Biomedical Engineering

Context:

  • Cardiovascular diseases are a major health concern, with endothelial dysfunction being an early indicator of atherosclerosis.
  • The vascular endothelium plays a critical role in cardiovascular homeostasis.
  • Assessing endothelial function is vital for understanding and managing cardiovascular health.

Purpose:

  • To provide an overview of endothelial function and its importance in cardiovascular health.
  • To review current biological and physico-chemical methods for assessing endothelial dysfunction.
  • To discuss the clinical applications and limitations of these assessment techniques.

Summary:

  • Endothelial dysfunction, characterized by reduced nitric oxide (NO) bioavailability, is a key factor in atherosclerosis development.
  • Methods for assessment include biological assays measuring NO metabolites and inflammatory mediators, and physico-chemical techniques like flow-mediated dilation (FMD) and various optical methods.
  • These techniques, often combined with provocation tests, offer insights into endothelial function but require further development for clinical reliability.

Impact:

  • Highlights the significance of the endothelium as a cardiovascular organ.
  • Discusses the potential of studying endothelial dysfunction for developing new therapeutic drugs.
  • Emphasizes the need for advancements in non-invasive, reproducible, and cost-effective methods for endothelial dysfunction assessment.