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HLA antigens in juvenile onset diabetes
The Tohoku Journal of Experimental Medicine
|November 1, 1980
Summary
Juvenile onset diabetes (JOD) is strongly associated with the HLA Bw54 antigen, increasing susceptibility 5.3 times. This finding aids in understanding genetic factors in childhood diabetes development.
Area of Science:
- Immunogenetics
- Endocrinology
- Pediatrics
Background:
- Juvenile onset diabetes (JOD) is a significant health concern in children.
- The major histocompatibility complex (MHC) plays a crucial role in immune regulation and is implicated in autoimmune diseases.
- Understanding genetic predispositions for JOD is vital for early detection and management.
Purpose of the Study:
- To investigate the association between specific Human Leukocyte Antigen (HLA) alleles and juvenile onset diabetes (JOD).
- To determine the relative risk conferred by HLA antigens in the development of JOD.
Main Methods:
- HLA typing was performed on 40 patients diagnosed with childhood onset diabetes and 120 healthy control subjects.
- Statistical analysis was employed to assess the frequency of HLA antigens in both groups and calculate relative risks.
Main Results:
- The HLA antigen Bw54 was found in 33% of JOD patients versus 8% of controls, indicating a 5.3-fold increased susceptibility.
- A high association was observed between JOD and the A9 antigen (78% in patients), though A9 is common in the Japanese population (58%).
- A decreased frequency of the B12 antigen was noted in JOD patients (3%) compared to controls (15%), with statistical significance (p < 0.05).
Conclusions:
- The HLA Bw54 antigen is significantly associated with an increased risk of developing juvenile onset diabetes.
- While HLA A9 shows a high association, its prevalence in the general population limits its predictive value for JOD.
- No association was found between HLA Bw54 and JOD in patients with a family history of diabetes, suggesting distinct genetic pathways.
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