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Calcification of Vascular Smooth Muscle Cells and Imaging of Aortic Calcification and Inflammation
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αKlotho and vascular calcification: an evolving paradigm
Ming Chang Hu1, Makoto Kuro-o, Orson W Moe
1aDepartment of Internal Medicine bThe Charles and Jane Pak Center of Mineral Metabolism and Clinical Research cDepartment of Pathology, University of Texas Southwestern Medical Center, Dallas, Texas, USA dCenter for Molecular Medicine, Jichi Medical University Tochigi, Japan eDepartment of Physiology, University of Texas Southwestern Medical Center, Dallas, Texas, USA.
Current Opinion in Nephrology and Hypertension
|May 29, 2014
Summary
Alpha-Klotho deficiency in chronic kidney disease (CKD) contributes to cardiovascular mortality. Understanding alpha-Klotho
Area of Science:
- Nephrology
- Cardiology
- Molecular Biology
Background:
- Cardiovascular disease is the leading cause of death in chronic kidney disease (CKD) patients.
- CKD is characterized by systemic deficiency of alpha-Klotho, a protein with diverse biological functions.
- Uremic toxins contribute to specific pathophysiologic mechanisms causing cardiomyopathy and vasculopathy in CKD.
Purpose of the Study:
- To explore the link between alpha-Klotho and uremic vasculopathy.
- To investigate the role of alpha-Klotho in the pathogenesis of cardiovascular complications in CKD.
- To assess the potential of alpha-Klotho as a prognostic biomarker and therapeutic agent.
Main Methods:
- Review of existing literature on alpha-Klotho expression and function in the vasculature.
- Analysis of conflicting data regarding alpha-Klotho's vascular expression (circulating vs. resident protein).
- Examination of in-vitro studies on alpha-Klotho's direct effects on endothelial and vascular smooth muscle cells.
Main Results:
- Expression of alpha-Klotho in the vasculature is debated due to conflicting research.
- Altered alpha-Klotho levels are associated with vascular pathology, including vascular calcification.
- In-vitro data demonstrate alpha-Klotho's cytoprotective and anti-mineralization effects on vascular cells.
Conclusions:
- Understanding alpha-Klotho's role in the endothelium-vascular smooth muscle network is crucial for uremic vasculopathy.
- Alpha-Klotho holds potential as a prognostic biomarker for cardiovascular disease in CKD.
- Alpha-Klotho may serve as a future biological therapeutic agent for uremic vasculopathy.
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