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Association between the Pattern of IGFBP-1 Alteration and the Glucose/Insulin Metabolic Control.
MedLine Citation:
PMID:  21104586     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Little is known on the possible association between impaired glucose/insulin metabolism, the pattern of IGFBP-1 phosphorylation and the complex formation with other serum proteins. In this study, the concentration, isoform, multimer and complex pattern of IGFBP-1 was compared in healthy persons and patients with type 2 diabetes mellitus or with hypoglycemia. Concentrations of insulin and IGFBP-1 were determined by radioimmunoassay. Metal affinity and immunoaffinity chromatography were used for the separation of molecular forms of IGFBP-1, which were detected by immunoblotting and SELDI. The counter directional change in insulin and IGFBP-1 concentrations, expressed as a factor that takes into consideration the rate of insulin increase and IGFBP-1 decrease after glucose intake was approximately twice more pronounced in patients with diabetes than in healthy and hypoglycemic persons. The alteration in the phosphorylation pattern of IGFBP-1 due to diabetes or hypoglycemia was not observed. IGFBP-1 multimers found in the circulation of patients with diabetes type 2 differed from those detected in the circulation of others: there were 3 molecular forms between 90 and 100 kDa (compared to one in patients with hypoglycemia or 2 in healthy persons), 2 of which were α (2)M-reactive and one not. These results suggest a possible greater involvement of IGF system in glucose regulation in patients with diabetes type 2.
Authors:
O Nedić; R Masnikosa; D Lagundžin
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Publication Detail:
Type:  Journal Article     Date:  2010-11-22
Journal Detail:
Title:  Experimental and clinical endocrinology & diabetes : official journal, German Society of Endocrinology [and] German Diabetes Association     Volume:  119     ISSN:  1439-3646     ISO Abbreviation:  Exp. Clin. Endocrinol. Diabetes     Publication Date:  2011 May 
Date Detail:
Created Date:  2011-05-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9505926     Medline TA:  Exp Clin Endocrinol Diabetes     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  306-13     Citation Subset:  IM    
Copyright Information:
© J. A. Barth Verlag in Georg Thieme Verlag KG Stuttgart · New York.
Affiliation:
Institute for the Application of Nuclear Energy - INEP, University of Belgrade, Serbia.
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