What is the role of vitamin D in the management of proteinuria?

Updated: Mar 25, 2020
  • Author: Beje Thomas, MD; Chief Editor: Vecihi Batuman, MD, FASN  more...
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In animal studies, vitamin D and vitamin D analogues decrease inflammatory mediators and may act as immunosuppressive agents. Vitamin D may play a role in down-regulating prorenin gene expression and thereby enhancing renin-angiotensin-aldosterone system (RAAS) blockade.

A randomized controlled trial showed a reduction in proteinuria of around 20% in diabetic patients with paricalcitol. [48] A similar conclusion was reached in a systematic review by Borst et al, which found that treatment with active vitamin D reduced proteinuria even in the setting of RAAS blockade in most patients. [49]

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