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Vitamin D in chronic kidney disease
Adriana Dusso1, Esther A González, Kevin J Martin
1Division of Experimental Nephrology, IRBLleida (Lleida Institute for Biomedical Research), Avda Rovira Roure 80, Lleida, Spain. adusso@irblleida.cat
Best Practice & Research. Clinical Endocrinology & Metabolism
|August 30, 2011
Summary
Chronic kidney disease (CKD) impairs vitamin D metabolism, leading to deficiencies in calcitriol and 25-hydroxyvitamin D [25(OH)D]. This worsens CKD progression and outcomes.
Area of Science:
- Nephrology
- Endocrinology
- Nutritional Science
Background:
- Chronic kidney disease (CKD) disrupts vitamin D metabolism, impacting mineral and skeletal health.
- Kidney dysfunction impairs the conversion of 25-hydroxyvitamin D [25(OH)D] to calcitriol and reduces serum 25(OH)D levels.
- Calcitriol and 25(OH)D deficiency in CKD is linked to disease progression and mortality.
Purpose of the Study:
- To review the pathophysiology of vitamin D deficiency in CKD.
- To assess current vitamin D supplementation and parathyroid hormone (PTH) suppression guidelines.
- To identify markers for renal and cardiovascular damage independent of PTH.
Main Methods:
- Literature review on vitamin D metabolism in CKD.
- Analysis of current clinical practice guidelines for vitamin D and PTH management.
- Exploration of potential biomarkers for CKD-related complications.
Main Results:
- CKD significantly impairs the kidney's ability to activate vitamin D and maintain adequate levels.
- Existing recommendations for vitamin D and PTH management may be insufficient.
- Novel markers are needed to assess non-PTH-related renal and cardiovascular damage.
Conclusions:
- Understanding vitamin D pathophysiology in CKD is crucial for improving patient outcomes.
- Evidence-based recommendations for vitamin D and calcitriol replacement are needed for all CKD stages.
- Further research should focus on identifying non-PTH-related markers and optimizing vitamin D therapy.
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