Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1983-2-14
pubmed:abstractText
B-cell function was studied in 20 diabetic children, with an age at onset of diabetes between 1.16 years (8.8 +/- 4.0). Serum samples were taken before the first insulin injection and after 1, 3, 6, 9 and in a few patients after 18 months. At 3, 9, and 18 months the patients were also given a standardized breakfast load. Serum proinsulin, C-peptide, IRI and insulin antibodies (IgG) were determined. At onset 19 patients had measurable C-peptide (0.22 +/- 0.17 pmol/ml; range 0.05-0.58). Proinsulin varied between 0.000-0.25 pmol/ml (0.069 +/- 0.071) and at onset amounted to 31.3 +/- 29.4 (0.100)% of C-peptide as compared to 3.3 +/- 1.1 (1.7-6.6) in non-diabetics. A long partial remission was significantly correlated to a low proinsulin/C-peptide ratio at onset. In patients with low fasting proinsulin and no insulin antibodies, breakfast stimulation was accompanied by an increased proinsulin release at 3 and 9 months. The results suggest that abnormal proinsulin secretion is a feature of the 'B-cell exhaustion' complex in juvenile-onset diabetes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0001-5563
pubmed:author
pubmed:issnType
Print
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
351-8
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:articleTitle
Abnormal proinsulin/C-peptide ratio in juvenile diabetes.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't