Related Experiment Video
Updated: Jun 3, 2026

09:01
Analysis of Extracellular Vesicle-Mediated Vascular Calcification Using In Vitro and In Vivo Models
Published on: January 27, 2023
[Vascular calcification: types and mechanisms]
1Hospital Universitari Arnau de Vilanova, Lleida. valdivielso@medicina.udl.es
Summary
Vascular calcification is an active, regulated process, not passive. Research into its mechanisms may reveal new treatments for chronic kidney disease patients.
Area of Science:
- Vascular biology
- Mineral metabolism
- Cardiovascular research
Context:
- Vascular calcification was historically viewed as a passive consequence of aging and disease.
- Emerging evidence reveals it as an active, regulated process akin to bone mineralization.
- This challenges traditional classifications, particularly in capacitance arteries.
Purpose:
- To re-evaluate the understanding of vascular calcification.
- To explore the active, regulated mechanisms involved in calcium deposition.
- To investigate the role of bone-related proteins in vascular calcification.
Summary:
- Vascular calcification is now understood as an active, regulated process involving bone-related proteins.
- Pro- and anti-calcifying mechanisms actively influence calcium deposition in vascular cells.
- This research shifts the paradigm from a passive to an active view of vascular calcification.
Impact:
- Identifies vascular calcification as a dynamic process.
- Highlights the role of cellular mechanisms and proteins.
- Suggests potential therapeutic targets for slowing or reversing vascular calcification, especially in chronic kidney disease.
Related Concept Videos
Atherosclerosis I: Introduction
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...
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...
Mechanism of Angiogenesis
Blood vessel formation starts early during embryonic development, around day 7. In the extraembryonic yolk sac, mesodermal precursor cells called hemangioblast proliferate and differentiate into angioblast. Angioblasts express vascular endothelial growth factor receptor 2 or VEGFR2, which binds VEGF-A, a proangiogenic factor, guiding blood vessel formation. VEGF signaling promotes angioblasts to form a blood island in the developing embryo. Angioblasts further differentiate, giving rise to...
Venous 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...
Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT
Calcium-Scoring CT ScanA calcium-scoring CT scan, also known as coronary artery calcium (CAC) scan, detects calcium deposits in the coronary arteries. This test assesses the risk of coronary artery disease (CAD), which can lead to cardiovascular events such as angina, heart failure, and sudden cardiac arrest.A calcium-scoring CT scan is generally recommended for individuals at intermediate risk of CAD without symptoms. It includes:Men aged 40-75 and women aged 50-75: Especially those with a...
Regulation 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...

