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Understanding Vascular Calcification in Chronic Kidney Disease: Pathogenesis and Therapeutic Implications
Chiara Siracusa1, Nicole Carabetta1, Maria Benedetta Morano1
1Department of Medical and Surgical Sciences, "Magna Grecia" University, 88100 Catanzaro, Italy.
Insights
Vascular calcification (VC) accelerates in chronic kidney disease (CKD) due to traditional and non-traditional risk factors. Understanding these mechanisms is key to developing new strategies to reduce cardiovascular risk in CKD patients.
Area of Science:
- Nephrology and Cardiovascular Medicine
- Biomedical Science
Background:
- Vascular calcification (VC) involves calcium and phosphate deposition in blood vessel walls, reducing arterial elasticity.
- VC significantly increases cardiovascular mortality in chronic kidney disease (CKD) patients.
- Traditional risk factors (age, diabetes, hypertension) and non-traditional factors (oxidative stress, anemia, inflammation) accelerate VC in CKD.
Purpose of the Study:
- To review traditional and non-traditional risk factors promoting VC in CKD patients.
- To provide an overview of the pathogenetic mechanisms underlying VC in CKD.
- To highlight potential new strategies for VC prevention and cardiovascular risk reduction.
Main Methods:
- Literature review of existing studies on vascular calcification in CKD.
- Analysis of pathophysiological processes contributing to VC.
- Discussion of risk factors and inhibitory mechanisms.
Main Results:
- VC is a critical factor in CKD progression and cardiovascular mortality.
- Multiple factors, including osteochondrogenic differentiation and imbalances in calcification inhibitors, drive VC.
- Both conventional and novel risk factors contribute to accelerated VC in CKD.
Conclusions:
- VC pathogenesis in CKD is multifactorial, involving cellular changes and biochemical imbalances.
- Identifying and managing traditional and non-traditional risk factors is crucial.
- Further research into pathogenetic mechanisms may yield novel therapeutic targets for reducing cardiovascular risk in CKD.
Abstract:
Vascular calcification (VC) is a biological phenomenon characterized by an accumulation of calcium and phosphate deposits within the walls of blood vessels causing the loss of elasticity of the arterial walls. VC plays a crucial role in the incidence and progression of chronic kidney disease (CKD), leading to a significant increase in cardiovascular mortality in these patients. Different conditions such as age, sex, dyslipidemia, diabetes, and hypertension are the main risk factors in patients affected by chronic kidney disease. However, VC may occur earlier and faster in these patients if it is associated with new or non-traditional risk factors such as oxidative stress, anemia, and inflammation. In chronic kidney disease, several pathophysiological processes contribute to vascular calcifications, including osteochondrogenic differentiation of vascular cells, hyperphosphatemia and hypercalcemia, and the loss of specific vascular calcification inhibitors including pyrophosphate, fetuin-A, osteoprotegerin, and matrix GLA protein. In this review we discuss the main traditional and non-traditional risk factors that can promote VC in patients with kidney disease. In addition, we provide an overview of the main pathogenetic mechanisms responsible for VC that may be crucial to identify new prevention strategies and possible new therapeutic approaches to reduce cardiovascular risk in patients with kidney disease.
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