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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1990-6-14
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pubmed:abstractText |
Autoantibodies against insulin, C-peptide, and glucagon were determined by radio-binding assay in 63 new-onset Type 1 (insulin-dependent) diabetic patients as well as in 70 controls. Plasma peptide binding was determined by means of 125I-labeled peptides and charcoal-dextran separation technique. Binding values exceeding the mean plus three standard deviations of the controls were considered as antibody-positive. Sixteen patients (25%) were positive for IAA, as 6 (10%) were positive for CAA and 2 (3%) for GAA. Of all control subjects, none were positive for either IAA or CAA, whereas 2 (2%) had GAA. The mean 125I-glucagon binding in the patients' group was, however, slightly enhanced and could be suppressed to normal values by excess unlabeled glucagon. The presence of IAA and/or CAA was significantly associated with more severe symptoms at diabetes manifestation. These results indicate that in new-onset Type 1 diabetics autoimmunity arises against all the insular peptides tested but is predominantly directed against those antigens secreted from the beta cells. Nevertheless, extremely low-binding GAA seem to be common in these patients. The determination of IAA/CAA might be useful in detecting a possible heterogeneity of Type 1 diabetes with regard to its clinical mode of manifestation.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Feb
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pubmed:issn |
0232-7384
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
95
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
123-8
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pubmed:dateRevised |
2011-11-17
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pubmed:meshHeading |
pubmed-meshheading:2185937-Age Factors,
pubmed-meshheading:2185937-Autoantibodies,
pubmed-meshheading:2185937-Body Weight,
pubmed-meshheading:2185937-C-Peptide,
pubmed-meshheading:2185937-Diabetes Mellitus, Type 1,
pubmed-meshheading:2185937-Female,
pubmed-meshheading:2185937-Glucagon,
pubmed-meshheading:2185937-Humans,
pubmed-meshheading:2185937-Insulin,
pubmed-meshheading:2185937-Islets of Langerhans,
pubmed-meshheading:2185937-Male,
pubmed-meshheading:2185937-Sex Factors
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pubmed:year |
1990
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pubmed:articleTitle |
Autoantibodies against insulin (IAA), C-peptide (CAA), and glucagon (GAA) in new-onset type 1 diabetic patients.
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pubmed:affiliation |
Central Institute of Diabetes Gerhardt Katsch, Karlsburg/GDR.
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pubmed:publicationType |
Journal Article
|