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Transplant Proc. 2016 Nov;48(9):2947-2949. doi: 10.1016/j.transproceed.2016.09.018.

Presence of T-275A and C-2152T Polymorphisms of the Promoter Region of Uridine Diphosphate-Glucuronosyltransferase 1A9 Increases Mortality From Digestive Tumors: Results After 10 Years of Follow-up in a Renal Transplant Population.

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Nephrology Department, Hospital Clinico San Carlos, Madrid, Spain.



The aim of this study was to determine the distribution of uridine diphosphate-glucuronosyltransferase 1A9 (UGT1A9) promoter region T-275A and C-2152T single-nucleotide polymorphisms (SNPs) in stable transplant patients and to investigate the impact of these SNPs on the evolution of this population after 10 years of follow-up.


White renal transplant recipients (n = 873) were studied. The median time of follow-up was 91.8 months (P25-75 46-146). Amplification with specific "primers" to delimit the study area was performed for each polymorphism. Amplification was performed with the use of real-time polymerase chain reaction.


T-275A promoter mutation was detected in 13% of patients and C-2152T in 12% of patients. Survival analysis was performed on 873 renal transplants, carried out between 2004 and 2013. We found a higher frequency of death from cancer among polymorphism carriers (P = .001).


It appears that carriers of T-275A and C-2152T SNPs of the UGT1A9 gene promoter region show a greater incidence of death from cancer, with a significantly higher cumulative incidence of death from gastrointestinal tumors.

[Indexed for MEDLINE]

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