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High GAD65 autoantibody levels in nondiabetic adults are associated with HLA but not with CTLA-4 or INS VNTR.

  • O Rolandsson
  • E Hägg
  • M Janer
  • E Rutledge
  • L K Gaur
  • M Nilsson
  • G Hallmans
  • Åke Lernmark
Publishing year: 2003
Language: English
Pages: 447-453
Publication/Series: Journal of Internal Medicine1989-01-01+01:00
Volume: 253
Issue: 4
Document type: Journal article
Publisher: Wiley-Blackwell Publishing Ltd

Abstract english

OBJECTIVES: To explore the relationship between genetic background and antibody levels in a nondiabetic population. We evaluated if high levels of autoantibodies against the 65 kDa isoform of glutamic acid decarboxylase (GAD65Ab), were associated with high-risk genes, i.e. HLA, CTLA-4 and INS VNTR genes. DESIGN AND SUBJECTS: Seventy-five (M/F 39/36) subjects exceeding the 95th percentile of GAD65 autoantibody index and 75 age and sex matched subjects below the 95th percentile, randomly selected amongst participants in the Västerbotten Intervention Programme. METHODS: The GAD65 Ab were measured in a radioligand-binding assay. HLA class II typing was performed by an oligoblot hybridization method. CTLA-4 repeat length was analysed and divided into short forms and long forms. Class I and class III alleles of INS VNTR were detected. Differences in distribution were tested by Pearson chi-square with Yates correction. Odds ratios (OR) were used to compare groups calculated with Cochran's and


  • Endocrinology and Diabetes


  • Diabetes and Celiac Unit
  • ISSN: 1365-2796
E-mail: ake [dot] lernmark [at] med [dot] lu [dot] se

Principal investigator

Diabetes and Celiac Unit

+46 40 39 19 01

+46 70 616 47 79


Jan Waldenströms gata 35, Malmö


Lund University Diabetes Centre, CRC, SUS Malmö, Jan Waldenströms gata 35, House 91:12. SE-214 28 Malmö. Telephone: +46 40 39 10 00