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Gohlke, H. ; Ferrari, U.* ; Koczwara, K.* ; Bonifacio, E.* ; Illig, T. ; Ziegler, A.-G.*

SLC30A8 (ZnT8) Polymorphism is Associated with Young Age at Type 1 Diabetes Onset.

Rev. Diabet. Stud. 5, 25-27 (2008)
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It was recently shown that the major allele of the SLC30A8 (zinc transporter 8, ZnT8) single nucleotide polymorphism (SNP) rs13266634 was associated with type 2 diabetes and with reduced insulin secretion in non-diabetic relatives. Because of its role in beta-cell function, we hypothesized that this candidate SNP may confer increased susceptibility for beta-cell destruction in type 1 diabetes. We analyzed SLC30A8 genotypes in 874 patients with type 1 diabetes and 1021 control subjects. No difference in allele and genotype frequencies of the SLC30A8 SNP rs13266634 was found between patients and controls. Analysis with respect to age at type 1 diabetes onset, however, showed that patients with a diabetes onset before age 5 years had an increased prevalence of the cytosine (C) allele (risk allele, 82%) and the homozygous CC genotype (65%) compared to patients who developed type 1 diabetes after age 5 years (67% and 49%; p < 0.01) and compared to controls (69% and 48%; p < 0.03). These data suggest that genetic susceptibility for beta-cell dysfunction in the presence of autoimmunity may lead to accelerated progression and early manifestation of the disease.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords type 1 diabetes; zinc transporter; ZnT-8; SLC30A8; genotype; beta-cell dysfunction; age of onset
ISSN (print) / ISBN 1613-0575
e-ISSN 1614-0575
Journal Review of Diabetic Studies, The
Quellenangaben Volume: 5, Issue: 1, Pages: 25-27 Article Number: , Supplement: ,
Publisher SBDR
Non-patent literature Publications
Reviewing status Peer reviewed
Institute(s) Institute of Epidemiology (EPI)
Institute for Pancreatic Beta Cell Research (IPI)