Journal
ARCHIVES OF DISEASE IN CHILDHOOD
Volume 91, Issue 6, Pages 473-477Publisher
BMJ PUBLISHING GROUP
DOI: 10.1136/adc.2005.088229
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Background: In adults, a fraction of diabetic individuals with beta-cell autoantibodies has initially non-nsulin requiring diabetes clinically appearing as type 2 diabetes mellitus (T2DM), named latent autoimmune diabetes in adulthood (LADA). The occurrence of beta-cell autoantibodies in European children and adolescents with T2DM has not been reported so far. Methods: The frequency of beta-cell autoantibodies (anti-GAD, anti-IA-2, and anti-ICA) was determined in 7050 diabetic children and adolescents. The type of diabetes was classified by paediatric diabetic specialists based on the clinical presentation. Children with non-insulin dependent T2DM over a one year period were studied separately. Results: A total of 6922 children were clinically classified as having type 1 diabetes (T1DM) and 128 children as having T2DM. Thirty six per cent of the children with T2DM had at least one detectable beta-cell autoantibody. These children did not differ significantly from the children with T2DM and without autoantibodies in respect of age, gender, weight status, lipids, blood pressure, C-peptide, glucose, and HbA1c at manifestation, as well as frequency of anti-thyroidal antibodies and insulin treatment during follow up. In the subgroup of the 38 children with T2DM without insulin requirement over a one year period, autoantibodies occurred in 32%. These 12 children were predominantly obese (67%), female (67%), and in the pubertal age range. Conclusion: beta-cell autoantibodies were detectable in a subgroup of initially non-insulin dependent diabetic children and adolescents with the clinical appearance of T2DM. Following the terminology ``latent autoimmune diabetes in adulthood (LADA)'', this subgroup might be classified as ``LADY'' ( latent autoimmune diabetes in youth).
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