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Åke Lernmark

Principal investigator

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Antibodies to a Mr-64000 islet cell protein in Swedish children with newly diagnosed Type 1 (insulin-dependent) diabetes

Author

  • M. Christie
  • M. Landin-Olsson
  • G. Sundkvist
  • G. Dahlquist
  • Å Lernmark
  • S. Bækkeskov

Summary, in English

Sera from 40 Swedish children diagnosed as having Type 1 (insulin-dependent) diabetes mellitus during a one year period along with 40 age and geographically matched control subjects were tested for antibodies to a Mr-64000 islet protein by immunoprecipitation of 35S-methionine-labelled rat islet amphiphilic proteins. Of the 40 diabetic patients, 29 (73%) were found to be positive whereas all 40 control subjects were negative. Samples were also tested for titres of islet cell cytoplasmic antibodies by indirect immunofluorescence on frozen sections of human pancreas. In the diabetic group, 30 of the 40 patients (75%) were positive for islet cell cytoplasmic antibodies compared with 2 of the 40 control subjects (5%). A comparison of levels of antibodies to the Mr-64000 protein with islet cell cytoplasmic antibodies revealed a weak (rs=0.46), but significant (p<0.01) correlation between the two tests. There was no effect of age or sex on levels of antibodies to the Mr-64000 protein. These results in population-based diabetic children and control subjects demonstrate a high frequency of antibodies to the Mr-64000 protein at the time of clinical onset.

Department/s

  • Medicine, Lund
  • Department of Clinical Sciences, Malmö
  • Department of Translational Medicine

Publishing year

1988-08-01

Language

English

Pages

597-602

Publication/Series

Diabetologia

Volume

31

Issue

8

Document type

Journal article

Publisher

Springer

Topic

  • Endocrinology and Diabetes

Keywords

  • autoantibodies
  • autoantigens
  • autoimmune disease
  • islets of Langerhans
  • Type 1 (insulin-dependent) diabetes mellitus

Status

Published

ISBN/ISSN/Other

  • ISSN: 0012-186X