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HHEX-IDE polymorphism is associated with low birth weight in offspring with a family history of type 1 diabetes.

J. Clin. Endocrinol. Metab. 94, 4113-4115 (2009)
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The fetal insulin hypothesis proposes that common genetic variants that reduce insulin secretion also reduce birth weight, and an association of low birth weight and the type 2 diabetes risk alleles at the HHEX-IDE and CDKAL1 loci were recently reported. OBJECTIVE: Here, we examined the relationship between type 2 diabetes risk alleles and birth weight in a diabetic environment presented in children of mothers with type 1 diabetes. RESEARCH DESIGN AND METHODS: Birth weight and genotyping of single nucleotide polymorphisms (SNPs) at the CDKAL1, HHEX-IDE, and SLC30A8 loci was obtained and analyzed in 729 singleton full-term children of mothers with type 1 diabetes born in Germany. RESULTS: The fetal risk alleles of HHEX-IDE SNP rs5015480 and SNP rs10882102 were associated with reduced birth weight: 81g (95% confidence interval, 20-140 g; P = 0.009) and 85 g (95% confidence interval, 25-145 g; P = 0.005) lower birth weight per risk allele, respectively. The association remained significant after adjusting for maternal pregnancy-glycosylated hemoglobin. Fetal genotypes at the CDKAL1 and SLC30A8 loci were not associated with birth weight in this cohort. CONCLUSIONS: The association of low birth weight and type 2 diabetes risk alleles of the HHEX-IDE locus is confirmed in children of mothers with type 1 diabetes.
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Publication type Article: Journal article
Document type Scientific Article
Keywords fetal-growth; insulin; appearance; risk
ISSN (print) / ISBN 0021-972X
e-ISSN 1945-7197
Quellenangaben Volume: 94, Issue: 10, Pages: 4113-4115 Article Number: , Supplement: ,
Publisher Endocrine Society
Publishing Place Bethesda, Md.
Reviewing status Peer reviewed
Institute(s) Institute of Diabetes Research Type 1 (IDF)
Institute of Epidemiology (EPI)
Institute for Pancreatic Beta Cell Research (IPI)