Development and progression of diabetic retinopathy in patients with Type 1 diabetes who are positive for GAD autoantibody

T. Mimura, H. Funatsu, Y. Uchigata, S. Kitano, E. Shimizu, H. Noma, S. Amano, M. Araie, Y. Iwamoto, S. Hori

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Aims: To investigate the relationship between autoantibodies to glutamic acid decarboxylase (GAD) and proliferative diabetic retinopathy (PDR) to assess the role of autoimmunity in retinopathy. Methods: Patients with Type 1 diabetes for more than 10 years who had been diagnosed under age 30 (13-28 years) were studied. They were classified into three groups. The PDR group consisted of 22 patients, the pre-PDR group was 26 patients, while the non-DR group was 32 patients who had Type 1 diabetes without retinopathy. Blood was collected to measure autoantibodies to GAD, and the relationship between PDR and GAD positivity was investigated in a cross-sectional study. Results: The highest positivity rate of GAD autoantibodies was 50.0% in the non-DR group, followed by the pre-PDR group (30.8%) and the PDR group (18.2%). Conclusions: Production or existence of GAD autoantibodies may contribute to the prevention of retinopathy.

Original languageEnglish
Pages (from-to)559-562
Number of pages4
JournalDiabetic Medicine
Volume21
Issue number6
DOIs
StatePublished - Jun 2004
Externally publishedYes

Keywords

  • Autoantibodies to glutamic acid decarboxylase
  • Glutamic acid decarboxylase autoantibodies
  • Proliferative diabetic retinopathy
  • Younger-onset Type 1 diabetes

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