Improved renal allograft survival with vitamin D receptor polymorphism.
BACKGROUND
Polymorphisms in genes, coding for proteins involved in immune response, or the pathogenesis of atherosclerosis may influence immunological and non-immunological mechanisms that lead to allograft loss. Vitamin D receptor (VDR) agonists reduce allograft rejection in animal models, and there are a number of functional polymorphisms in VDR.


METHODS
In all, 379 renal transplant recipients were genotyped for VDR (FokI & ApaI) polymorphisms, and the association of each genotype with renal allograft survival and acute rejection was determined.


RESULTS
There was significantly improved allograft survival for patients who were homozygous or heterozygous for the VDR FokI T allele (Hazard Ratio [HR] = 0.488, p < 0.001).


CONCLUSIONS
The association of VDR FokI T allele with improved renal allograft survival is a unique observation. The finding is in keeping with data showing the prevention of chronic allograft rejection with the use of Vitamin D receptor agonists.
Lavin
P J
PJ
Department of Nephrology, Beaumont Hospital, Dublin 9, Ireland. plavin@chg.duhs.duke.edu
Laing
M E
ME
O'Kelly
P
P
Moloney
F J
FJ
Gopinathan
D
D
Aradi
A Al
AA
Shields
D C
DC
Murphy
G M
GM
Conlon
P J
PJ
D000328:Adult; D000368:Aged; D005260:Female; D006085:Graft Survival; D006801:Humans; D016030:Kidney Transplantation; D008297:Male; D008875:Middle Aged; D011110:Polymorphism, Genetic; D018167:Receptors, Calcitriol / Q000235:genetics*; D014184:Transplantation, Homologous
D018167:Receptors, Calcitriol