Poor beta-cell function after the clinical manifestation of type 1 diabetes in children initially positive for islet cell specific autoantibodies. The Childhood Diabetes in Finland Study Group

Diabetic Medicine : a Journal of the British Diabetic Association
J KomulainenH K Akerblom

Abstract

The prognostic significance of islet cell specific autoantibodies at the diagnosis of Type 1 (insulin-dependent) diabetes mellitus for the persistence of residual beta-cell function over the first 2 years of clinical disease was evaluated in a prospective population-based study. Seven hundred and eighty probands, aged 0.8-14.9 years, were examined for islet cell antibodies (ICA) and insulin autoantibodies (IAA), while 769 probands were studied for antibodies to glutamic acid decarboxylase (GAD65A). They were subsequently observed for 2 years. Lower serum C-peptide concentrations and higher requirement of exogenous insulin during the follow-up period were observed in the group of probands positive for at least one of the antibodies, especially for ICA or IAA. We conclude that the residual beta-cell function after the presentation of Type 1 diabetes is less in children initially positive for islet cell specific autoantibodies than in those testing negative at diagnosis. This might reflect possible heterogeneity in the pathogenesis of childhood diabetes. It also demonstrates that ICA and IAA negativity at the diagnosis of Type 1 diabetes is not associated with a smaller amount of functioning beta-cell mass, but the absence of anti...Continue Reading

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Related Concepts

Pathogenic Aspects
Autoantibodies
Pathogenesis
GAD1
Glutamate Decarboxylase
C-Peptide
Islet cell surface antibodies
Insulin C-peptide Measurement
Novolin
Islet Cell

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