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Ann Pediatr Endocrinol Metab > Volume 5(1); 2000 > Article
Factors Associated with the Development of Anti-insulin Antibody in Diabetic Children.
Kyoung Lee, Seong Yong Lee, Chae Kyoung Song, Min Ho Jung, Kyung Hee Yi, Jeong Yeon Hong, Il Tae Whang, Jin Soon Hwang, Sei Won Yang
Department of Pediatrics, College of Medicine, Seoul University, Seoul, Korea.
Anti-insulin antibodies develop within several months of initiation of insulin therapy in most of diabetic patients. The purpose of this study is to observe the relationship between the clinical factors and development of anti-insulin antibody METHODS: Serum was collected from 116 diabetic patients and 47 nondiabetic children for the measurement of anti-insulin antibody titer by radioimmunoassay (RIA). Retrospective analysis of the medical records of clinical factors were evaluated.
There was no relationship of anti-insulin antibody titer with age, duration, HbA1c, insulin dose, and BMI in diabetic children. There was no difference in anti-insulin antibody titer according to the sex, the presence of family history, the presence of DKA, the presence of complications, the presence of puberty, species of insulin, duration of disease in diabetic children. The titers of anti-insulin antibody were significantly higher in type 1 diabetic children(30.3+/-17.9% in type 1 and 16.5+/-7.0% in type 2, P<0.05), in which the daily insulin doses were significantly higher than in type 2 DM patients. Additionally, anti-insulin antibody titers were significantly lower in well-controlled DM patients (HbA1c<7%), in which daily insulin doses also were significantly lower than in DM patients whose HbA1c>7%. The positive rates of anti-insulin antibody were higher in male patients with diabetes(73.2% in male and 53.3% in female, P<0.05). The positive rates of anti-insulin antibody were significantly higher in DM patients without diabetic ketoacidosis at DM onset than in DM patients with diabetic ketoacidosis at DM onset & also were higher in poorly-controlled group(HbA1c>7%).
The results suggests that anti-insulin antibody developed more likely in type 1 DM and less likely in DM patients whose control had been good and who used less insulin doses, which remains to be studied further with more patients for longer duation.
Keywords: Diabetes;Anti-insulin antibody
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