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- Title
A Polymorphism in the Zinc Transporter Gene SLC30A8 Confers Resistance Against Posttransplantation Diabetes Mellitus in Renal Allograft Recipients.
- Authors
Eun Seok Kang; Myoung Soo Kim; Yu Seun Kim; Chul Hoon Kim; Seung Jin Han; Sung Wan Chun; Kyu Yeon Hur; Chung Mo Nam; Chul Woo Ahn; Bong Soo Cha; Soon Il Kim; Hyun Chul Lee
- Abstract
OBJECTIVE--Posttransplantation diabetes mellitus (PTDM) is a major metabolic complication in renal transplant recipients, and insulin secretory defects play an important role in the pathogenesis of PTDM. The R325W (rs13266634) nonsynonymous polymorphism in the islet-specific zinc transporter protein gene, SLC30A8, has been reported to be associated with type 2 diabetes and possibly with a defect in insulin secretion. This study investigated the association between genetic variations in the SLC30A8 gene and PTDM in renal allograft recipients. RESEARCH DESIGN AND METHODS--A total of 624 unrelated renal allograft recipients without previously diagnosed diabetes were enrolled. Rs13266634 was genotyped in the cohort, which consisted of 174 posttransplantation diabetic patients and 450 non-posttransplantation diabetic subjects. The genotyping of the SLC30A8 polymorphism was performed using real-time PCR. RESULTS--The prevalence of PTDM was 33.8% in patients carrying the R/R genotype, 26.8% in patients with the R/W genotype, and 19.8% in patients with the W/W genotype. There was a strong association between the number of W-alleles and PTDM risk reduction (P for trend = 0.007). Patients with at least one T-allele showed a decreased risk of PTDM compared with those with the R/R genotype (R/W, risk ratio [RR] 0.78, P = 0.126; W/W, RR 0.52, P = 0.007). The effect of the SLC30A8 genotype remained significant after adjustments for age, sex, body weight gain, and type of immunosuppressant (R/W, hazard ratio [HR] 0.77, P = 0.114; W/W, HR 0.58, P = 0.026). CONCLUSIONS--These data provide evidence that the SLC30A8 rs13266634 gene variation is associated with protection from the development of PTDM in renal allograft recipients.
- Subjects
GENETIC polymorphisms; GENES; ZINC; DIABETES; HOMOGRAFTS; KIDNEYS; PATIENTS
- Publication
Diabetes, 2008, Vol 57, Issue 4, p1043
- ISSN
0012-1797
- Publication type
Article
- DOI
10.2337/db07-0761