HLA-DQ genotypes in classic type 1 diabetes and in latent autoimmune diabetes of the adult

被引:18
作者
Stenström, G
Berger, MB
Borg, H
Fernlund, P
Dorman, JS
Sundkvist, G
机构
[1] Univ Gothenburg, Varberg Hosp Kungsbacka, Dept Med, Gothenburg, Sweden
[2] Cent Hosp Skovde, Dept Med, S-54185 Skovde, Sweden
[3] Univ Hosp, Dept Endocrinol, Malmo, Sweden
[4] Univ Hosp, Dept Clin Chem, Malmo, Sweden
[5] Univ Pittsburgh, Dept Epidemiol, Pittsburgh, PA 15261 USA
关键词
autoantibodies; C-peptide; diabetes mellitus; insulin-dependent; non-insulin-dependent; HLA-DQ antigens; islets of Langerhans;
D O I
10.1093/aje/kwf115
中图分类号
R1 [预防医学、卫生学];
学科分类号
1004 ; 120402 ;
摘要
In 1993-1996, islet autoantibodies, C-peptide, and HLA-DQ genotypes were evaluated in 345 insulin-treated diabetic patients of all ages from the Skaraborg Diabetes Registry 5-6 years after their diagnosis and in 216 control subjects from the Skaraborg County, Sweden, population. The aims of this study were to clarify the importance of age at diagnosis of diabetes for HLA-DQ associations in patients with classic type 1 diabetes and whether patients considered to have latent autoimmune diabetes of the adult differed in their human leukocyte antigen (HLA) associations. An abnormally low fasting C-pepticle value was used as the definition of type 1 diabetes, found in 182 of 345 (53%) patients. No major associations between age at diagnosis and HLA susceptibility or protective genotypes were detected in type 1 diabetic patients. Among the 163 patients with preserved beta-cell function, the frequency of HLA protective genotypes was clearly decreased (5% vs. 42%) in the 46 of 163 with islet antibodies compared with the 117 of 163 antibody-negative patients. The authors conclude that there were no major effects of age at diagnosis on HLA-DQ associations in classic type 1 diabetic patients, whereas lack of HLA-DQ protective genotypes was a feature of patients with slow-progressing type 1 diabetes (latent autoimmune diabetes of the adult).
引用
收藏
页码:787 / 796
页数:10
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