Current Diabetes Reports

, Volume 8, Issue 6, pp 464–469

Vitamin D and diabetic nephropathy



Diabetic nephropathy (DN) is the most common renal complication of diabetes mellitus and a leading cause of end-stage renal disease. The renin-angiotensin system (RAS) is a major mediator of progressive renal injury in DN, and RAS inhibitors have been used as the mainstay treatment for DN. One major problem limiting the efficacy of the RAS inhibitors is the compensatory renin increase caused by disruption of renin feedback inhibition. Vitamin D negatively regulates the RAS by suppressing renin expression and thus plays a renoprotective role in DN. Diabetic vitamin D receptor-null mutant mice develop more severe renal injuries because of more robust RAS activation. Combination therapy with an RAS inhibitor and a vitamin D analogue markedly ameliorates renal injuries due to blockade of the compensatory renin increase by the analogue. These most recent data demonstrate that vitamin D and its analogues have renoprotective and therapeutic potentials in DN through targeting the RAS.


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Copyright information

© Current Medicine Group LLC 2008

Authors and Affiliations

  1. 1.Department of MedicineThe University of ChicagoChicagoUSA

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