Islet antibodies and remaining β-cell function 8 years after diagnosis of diabetes in young adults: A prospective follow-up of the nationwide Diabetes Incidence Study in Sweden
2004 (English)In: Journal of Internal Medicine, ISSN 0954-6820, Vol. 255, no 3, 384-391 p.Article in journal (Refereed) Published
Objectives. To establish the prevalence of remaining β-cell function 8 years after diagnosis of diabetes in young adults and relate the findings to islet antibodies at diagnosis and 8 years later. Design. Population-based cohort study. Setting. Nationwide from all Departments of Medicine and Endocrinology in Sweden. Subjects. A total of 312 young (15-34 years old) adults diagnosed with diabetes during 1987-88. Main outcome measure. Plasma connecting peptide (C-peptide) 8 years after diagnosis. Preserved β-cell function was defined as measurable C-peptide levels. Three islet antibodies - cytoplasmic islet cell antibodies (ICA), glutamic acid decarboxylase antibodies and tyrosine phosphatase antibodies -were measured. Results. Amongst 269 islet antibody positives (ab+) at diagnosis, preserved β-cell function was found in 16% (42/269) 8 years later and these patients had a higher body mass index (median 22.7 and 20.5 kg m-2,respectively, P = 0.0003), an increased frequency of one islet antibody (50 and 24%, respectively, P = 0.001), and a lower prevalence of ICA (55 and 6%, respectively, P = 0.007) at diagnosis compared with ab+ without remaining β-cell function. Amongst the 241 patients without detectable β-cell function at follow-up, 14 lacked islet antibodies, both at diagnosis and at follow-up. Conclusions. Sixteen per cent of patients with autoimmune type 1 diabetes had remaining β-cell function 8 years after diagnosis whereas 5.8% with β-cell failure lacked islet autoimmunity, both at diagnosis and at follow-up.
Place, publisher, year, edition, pages
2004. Vol. 255, no 3, 384-391 p.
National CategoryMedical and Health Sciences
IdentifiersURN: urn:nbn:se:liu:diva-24679DOI: 10.1046/j.1365-2796.2003.01273.xLocal ID: 6912OAI: oai:DiVA.org:liu-24679DiVA: diva2:245001