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Transplant Proc. 2012 Apr;44(3):667-71. doi: 10.1016/j.transproceed.2011.11.011.

Gene polymorphisms are associated with posttransplantation diabetes mellitus among Taiwanese renal transplant recipients.

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  • 1Division of Nephrology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan.



Genetic variations may affect posttransplantation metabolic syndrome and diabetes mellitus (PTDM), which is associated with greater morbidity and progressive impairment of both patient and graft survivals. The aim of this study was to evaluate several candidate gene polymorphisms for their association with the risk of developing PTDM.


In April 1999, we enrolled 278 renal transplant participants, including 251 subjects free of diabetes and 27 with PTDM. We studied several candidate gene polymorphisms associated with diabetes: 4G/5G polymorphism of plasminogen activator inhibitor 1 (PAI-1) at -675; C/T polymorphism of interleukin-1beta (IL-1β) at -511; G/C polymorphism of IL-6 at 174; polymorphic XbaI of Glucose transporter 1 (GLUT1); and C/T polymorphism of methylenetetrahydrofolate redutase (MTHFR) at 677.


The PTDM group had an older mean age (47.6 ± 9.8 years), greater predominance of men (77.8%), higher number of chronic diseases (CDN ≥2, 96.3%), and more patients using tacrolimus-based immunosuppression (44.4%; P < .05). Using model A, a simple logistic regression, we observed that patients with the IL-6 G/G genotype experienced a lower risk of developing PTDM (odds ratio [OR], 0.08; 95% confidence interval [CI] 0.01-0.86), and multiple logistic regression models B and C, after adjusting for different variables, confirmed this observation (model B: OR, 0.05; 95% CI, 0.00-0.66). The IL-6 G/G genotype showed a borderline effect in model C (OR, 0.02; 95% CI, 0.00-1.16). There were no significant differences between the 2 groups in genotype variations of PAI-1, IL-1β, GLUT-1, and MTHFR.


The G/G genotype of IL-6 may play an important role to lower the risk for PTDM development.

Crown Copyright © 2012. Published by Elsevier Inc. All rights reserved.

[PubMed - indexed for MEDLINE]
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