NDT Advance Access originally published online on April 9, 2008
Nephrology Dialysis Transplantation 2008 23(6):1786-1789; doi:10.1093/ndt/gfn142
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
© The Author [2008]. Published by Oxford University Press on behalf of ERA-EDTA. All rights reserved. For Permissions, please e-mail: journals.permissions@oxfordjournals.org
Use (or misuse) of vitamin D treatment in CKD and dialysis patients
A recent meta-analysis on vitamin D compounds in chronic kidney disease [1] and an editorial comment [2] accompanying this meta-analysis have already been published. We believe that these papers deserve some comments in the interest of the NDT readership
1 Nephrological Department P, Rigshospitalet 2 Nephrological Department B, Herlev Hospital, University of Copenhagen, Denmark
Correspondence and offprint requests to: Klaus Olgaard, Department of Nephrology P2132, University of Copenhagen, Rigshospitalet, 9 Blegdamsvej, DK-2100 Copenhagen, Denmark. Tel: +45-3545-2130; Fax: +45-3545-2672; E-mail: olgaard@rh.dk
| The first 150 words of the full text of this article appear below. |
1,25-Dihydroxy vitamin D (vitamin D) is a hormone with a number of pharmacological and physiological effects, first demonstrated as the effect to cure osteomalacia and later as a hormone with effects related to mineral homeostasis, cell differentiation, immunology, vascular calcification and ageing [3–5]. The hormone, 1,25-dihydroxy vitamin D, is formed from cholecalciferol, that is 25-hydroxylated in the liver and 1-
-hydroxylated in the kidney. In addition 1-
-hydroxylase activity has been demonstrated in a number of cells outside the kidney. The activity of the extrarenal 1-
-hydroxylase is, however, not enough to keep physiological plasma levels of 1,25-dihydroxy vitamin D, and the renal 1-
-hydroxylase activity is therefore of utmost importance for maintaining a normal physiological homeostasis.
In patients with chronic uraemia, reduced kidney mass and low kidney function, the renal 1-
-hydroxylase activity is clearly reduced, as demonstrated by the very low levels of plasma 1,25-dihydroxy vitamin
| Conclusion |
|---|
This article has been cited by other articles:
![]() |
T. B. Drueke and E. Ritz Treatment of Secondary Hyperparathyroidism in CKD Patients with Cinacalcet and/or Vitamin D Derivatives Clin. J. Am. Soc. Nephrol., January 1, 2009; 4(1): 234 - 241. [Abstract] [Full Text] [PDF] |
||||
![]() |
K. Olgaard and E. Lewin Reply to Dr S.C. Palmer and co-workers Nephrol. Dial. Transplant., August 1, 2008; 23(8): 2709 - 2710. [Full Text] [PDF] |
||||

