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Updated: Jun 28, 2026
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Comparative Proteomic Analysis of Whole Kidney, Medulla, and Cortical Tubules in Diabetic Pathogenesis of Kidney Injury in Mice
Published on: May 2, 2025
Vitamin D and diabetic nephropathy.
1Department of Medicine, The University of Chicago, Chicago, IL 60637, USA. cyan@medicine.bsd.uchicago.edu
Current Diabetes Reports
|November 8, 2008
Summary
Vitamin D protects kidneys in diabetic nephropathy by regulating the renin-angiotensin system (RAS). Combining vitamin D analogues with RAS inhibitors offers a promising therapeutic strategy for diabetic kidney disease.
Area of Science:
- Nephrology
- Endocrinology
- Pharmacology
Background:
- Diabetic nephropathy (DN) is a primary cause of end-stage renal disease.
- The renin-angiotensin system (RAS) drives progressive kidney damage in DN.
- Current RAS inhibitors face limitations due to compensatory renin increases.
Purpose of the Study:
- To investigate the renoprotective role of vitamin D in DN.
- To evaluate the therapeutic potential of vitamin D analogues in combination with RAS inhibitors.
Main Methods:
- Utilized diabetic vitamin D receptor-null mutant mice models.
- Assessed renal injury and RAS activation.
- Investigated the effects of combined RAS inhibitor and vitamin D analogue therapy.
Main Results:
- Diabetic vitamin D receptor-null mice exhibited exacerbated renal injury and RAS activation.
- Combination therapy effectively ameliorated renal injuries.
- Vitamin D analogues blocked the compensatory renin increase induced by RAS inhibitors.
Conclusions:
- Vitamin D negatively regulates the RAS, offering renoprotection in DN.
- Combination therapy with vitamin D analogues and RAS inhibitors shows significant therapeutic potential for DN by targeting the RAS.
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