Related Experiment Video
Updated: Jun 26, 2026
09:19
In Vitro Microfluidic Disease Model to Study Whole Blood-Endothelial Interactions and Blood Clot Dynamics in Real-Time
Published on: May 24, 2020
[Endothelial dysfunction in pathogenesis of venous transformation].
Summary
Endothelial dysfunction plays a key role in varicose veins, with circulating endothelial cells (CECs) serving as a reliable marker. Elevated CEC levels indicate endothelial damage and disease activity, guiding treatment decisions.
Area of Science:
- Vascular pathophysiology
- Endothelial biology
- Phlebology
Context:
- Venous outflow disorders, particularly varicose veins, are a significant clinical challenge.
- The pathophysiology involves endothelial wall damage from activated leukocyte byproducts.
- Endothelial dysfunction is increasingly recognized as a critical factor.
Purpose:
- To investigate the role of endothelial dysfunction in varicose vein development.
- To evaluate circulating endothelial cells (CECs) as a marker for endothelial dysfunction.
- To establish a threshold for CECs indicative of peripheral vein endothelial lesions.
Summary:
- Studies reveal significant endothelial dysfunction in 91% of patients with segmental subcutaneous varicosity.
- Elevated CEC counts (above 6 x 10^4 cells/ml) reliably indicate endothelial lesions in peripheral venous diseases.
- The degree of endotheliemia correlates with the activity of varicose transformation, enabling timely interventions.
Impact:
- Circulating endothelial cells (CECs) are validated as a quantitative marker for endothelial dysfunction in varicose disease.
- This finding allows for objective assessment of disease severity and monitoring of treatment efficacy.
- Diosmine-based phlebotonics are highlighted as a primary therapeutic approach for venous transformation.
Related Concept Videos
01:30Venous Thrombosis I: Introduction
Venous thrombosis, the most common disorder of the veins, involves the formation of a thrombus or blood clot associated with vein inflammation. It can be classified as either superficial vein thrombosis or deep vein thrombosis.Superficial Vein Thrombosis: This involves the formation of a thrombus in a superficial vein, usually the greater or lesser saphenous vein. Though less severe than deep vein thrombosis (DVT), SVT can lead to complications if untreated.Deep Vein Thrombosis (DVT): This...
01:26Varicose Veins I: Introduction
Varicose veins, or varicosities, are abnormally dilated and twisted superficial veins caused by venous valve incompetence. This condition commonly affects the lower extremities, especially the saphenous veins, due to the higher pressure from prolonged standing and walking. However, varicosities can also occur in other areas, such as the esophagus, vulva, spermatic cords, and anorectal region.Etiology and typesPrimary varicose veins, often idiopathic, are more common in women due to inherent...
01:20Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies
The key difference between Superficial Vein Thrombosis (SVT) and Deep Vein Thrombosis (DVT) lies in their location and severity.Clinical ManifestationsSVT typically presents with localized pain, tenderness, and redness along the course of a superficial vein, often accompanied by a palpable, cord-like structure under the skin. This condition is usually less dangerous than DVT but can be uncomfortable and may lead to complications such as cellulitis or, rarely, a clot extension into the deep...
01:04Venous Return
The circulatory system plays a crucial role in ensuring the optimal functioning of the human body. One of its critical components is venous return - the process that completes the blood circulation cycle. This article will delve into the concept of venous return, how it works, and its significance to our health.
What is Venous Return?
Venous return refers to the rate at which blood flows back to the heart from the body's peripheral veins. It's an integral part of the circulatory system as it...
What is Venous Return?
Venous return refers to the rate at which blood flows back to the heart from the body's peripheral veins. It's an integral part of the circulatory system as it...
01:30Venous Thrombosis IV: Nursing Management
Nursing management begins with a thorough assessment of the patient's health history. Key factors include trauma to veins, peripherally inserted central catheters, varicose veins, recent pregnancy or childbirth, surgery, bacteremia, prolonged bed rest, atrial fibrillation, COPD, heart failure, cancer, coagulation disorders, myocardial infarction, spinal cord injury, stroke, prolonged travel, recent bone fractures, and dehydration. Review medication intake, particularly oral contraceptives,...
01:24Regulation of Angiogenesis and Blood Supply
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 hydroxylase and factor...