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Diabet Med. 2009 Dec;26(12):1250-4. doi: 10.1111/j.1464-5491.2009.02859.x.

The effect of biopsy-positive silent coeliac disease and treatment with a gluten-free diet on growth and glycaemic control in children with Type 1 diabetes.

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1
Department of Endocrinology, Royal Manchester Children's Hospital, Manchester, UK.

Abstract

OBJECTIVE:

To determine the effect of coeliac disease and treatment with a gluten-free diet on growth and glycaemic control in asymptomatic children with Type 1 diabetes.

METHODS:

Data were compared in children with coeliac disease diagnosed by annual antibody screening and jejunal biopsy and treated with a gluten-free diet (n = 49) against individuals who were antibody negative (n = 49) matched for age, sex and duration of diabetes.

RESULTS:

No differences in growth were observed. In the years prior to diagnosis of coeliac disease, mean glycated haemoglobin (HbA(1c)) was lower in cases compared with control subjects [8.3 +/- 1.1% vs. 8.7 +/- 0.9%, P = 0.02 (mean +/- sd)]. In cases, HbA(1c) deteriorated 12 months from the start of a gluten-free diet to levels similar to control subjects (8.9 +/- 1.5% vs. 8.8 +/- 1.5%, P-value for analysis of variance = 0.9). In regression analysis, the diagnosis of coeliac disease and start of a gluten-free diet was associated with a rise in HbA(1c) in the first year of treatment [odds ratio 1.56 (95% confidence intervals 1.16-2.10), P = 0.003] after adjusting for insulin dose and regimen and other variables.

CONCLUSIONS:

In children with Type 1 diabetes, lower HbA(1c) prior to diagnosis of silent coeliac disease rises following treatment with a gluten-free diet to levels similar to those without coeliac disease. Although unproven, these observations may relate to abnormalities at the small bowel mucosa before the appearance of circulating coeliac antibodies.

[Indexed for MEDLINE]

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