Abstract:
:We evaluated the production of antibodies against insulin in a genetically well-defined population. In the first study, 124 young patients with type I diabetes for longer than 6 mo were included. Anti-insulin antibodies were detected by polyethyleneglycol (PEG) precipitation after incubation of acidified, charcoal-stripped sera with 125I-labeled pork insulin and were expressed as microunits insulin bound per milliliter whole serum. For comparison, the patients were divided into six groups based on HLA DR antigens: 3/3, 3/-, 4/4, 4/-, 3/4, and -/-(-is non-DR3 or -DR4). The mean age of the patients was 14.7 +/- 0.5 yr; the duration of diabetes was 5.8 +/- 0.4 yr; and the glucose control, as measured by hemoglobin A1c was average (7.6 +/- 0.2%). There were no significant differences in any of these parameters among the patients in any of the HLA DR groups. Patients expressing DR3/3 had significantly lower insulin binding than the rest of the groups (2.5 +/- 0.4 vs. 13.6 +/- 1.4 microU/ml, P less than 0.0001). Patients with DR3/ - did not differ in insulin-binding capacity from the other groups. The type of insulin used for replacement was not correlated with the serum insulin-binding capacity. In a second study, sera from 48 children, newly diagnosed with type I diabetes, were examined for the presence of insulin binding before treatment with exogenous insulin and compared with sera from 80 children without diabetes or a family history of diabetes and from 103 unaffected HLA-identical or haploidentical siblings of a child with type I diabetes.(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
Diabetesjournal_title
Diabetesauthors
McEvoy RC,Witt ME,Ginsberg-Fellner F,Rubinstein Pdoi
10.2337/diab.35.6.634subject
Has Abstractpub_date
1986-06-01 00:00:00pages
634-41issue
6eissn
0012-1797issn
1939-327Xjournal_volume
35pub_type
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