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Assessment of Vascular Function in Patients With Chronic Kidney Disease
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Vitamin K in Chronic Kidney Disease
Mario Cozzolino1, Michela Mangano2, Andrea Galassi3
1Renal Division, Department of Health Sciences, University of Milan, 20142 Milan, Italy. mario.cozzolino@unimi.it.
Nutrients
|January 17, 2019
Summary
Chronic kidney disease patients often have vitamin K deficiency, increasing risks for bone and vascular issues. This deficiency may stem from high vitamin K demands for calcification inhibition.
Area of Science:
- Biochemistry and Molecular Biology
- Nephrology and Urology
- Nutritional Science
Background:
- Vitamin K is essential for activating vitamin K-dependent proteins (VKDPs) via the enzyme γ-glutamyl carboxylase (GGCX).
- VKDPs are crucial for hemostasis, vascular health, and bone metabolism.
- Chronic kidney disease (CKD) is increasingly linked to impaired vitamin K status.
Purpose of the Study:
- To highlight the prevalence and implications of subclinical vitamin K deficiency in CKD patients.
- To explore the potential mechanisms contributing to vitamin K deficiency in this population.
Main Methods:
- Review of existing literature on vitamin K metabolism and its role in CKD.
- Analysis of evidence linking CKD pathophysiology to vitamin K-dependent processes.
Main Results:
- CKD patients exhibit subclinical vitamin K deficiency.
- This deficiency places them at risk for adverse health outcomes related to VKDPs.
- High requirements for VKDPs, particularly for calcification inhibition, may deplete vitamin K levels.
Conclusions:
- Subclinical vitamin K deficiency is a significant concern in chronic kidney disease.
- Targeting vitamin K status may be a potential therapeutic strategy in CKD management.
- Further research is needed to elucidate the precise role of vitamin K in CKD progression and complications.
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