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Elevated circulating adiponectin in type 1 diabetes is associated with long diabetes duration
Linköping University, Department of Medicine and Care, Internal Medicine. Linköping University, Faculty of Health Sciences.
The Medical Research Laboratories, Clinical Institute and Medical Department M, Aarhus University Hospital, Aarhus, Denmark.
Linköping University, Department of Medicine and Care, Internal Medicine. Linköping University, Faculty of Health Sciences.
The Medical Research Laboratories, Clinical Institute and Medical Department M, Aarhus University Hospital, Aarhus, Denmark.
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2006 (English)In: Clinical Endocrinology, ISSN 0300-0664, E-ISSN 1365-2265, Vol. 65, no 6, 776-782 p.Article in journal (Refereed) Published
Abstract [en]

Objective  To study circulating adiponectin concentrations in relation to diabetes duration and endogenous insulin secretion in patients with type 1 diabetes.

Patients  Patients with haemoglobin A1c (HbA1c) < 6% (reference range 3·6–5·4%) were selected for the study. Twenty-two men and 24 women [age 41·3 ± 13·8 years (mean ± SD), diabetes duration 4 months to 52 years] participated. Healthy controls (15 women and nine men, age 41·3 ± 13·0 years) were also included. Overnight fasting serum samples were analysed for adiponectin, HbA1c, C-peptide and lipoproteins.

Results  Significant positive associations were found between adiponectin concentrations and diabetes duration in univariate and multiple regression analyses. Serum adiponectin averaged 9·7 ± 5·3 [median 8·1, interquartile range (IQR) 3·6] mg/l in patients with diabetes duration less than 10 years and 17·8 ± 10·7 (median 14·7, IQR 7·5) mg/l in patients with longer duration (P = 0·0001). Among the patients, 24 were without detectable (< 100 pmol/l) and 22 with detectable C-peptide levels (185 ± 91 pmol/l). C-peptide levels in controls averaged 492 ± 177 pmol/l. HbA1c was 5·7 ± 0·6% in patients without detectable C-peptide and 5·6 ± 0·4% in patients with detectable C-peptide (ns). Serum adiponectin was higher in patients without detectable C-peptide than in patients with detectable C-peptide [17·3 ± 11·1 vs. 10·6 ± 5·8 mg/l (P < 0·005)] and in the controls [10·1 ± 2·9 mg/l (P < 0·001 vs. patients without detectable C-peptide)].

Conclusions  The increase in circulating adiponectin concentrations in patients with type 1 diabetes appears to be strongly associated with long diabetes duration, irrespective of the metabolic control. Among other factors, a putative role for residual β-cell function in the regulation of circulating adiponectin levels can be considered but we did not find sufficient evidence for this in the present study.

Place, publisher, year, edition, pages
2006. Vol. 65, no 6, 776-782 p.
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Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-37793DOI: 10.1111/j.1365-2265.2006.02666.xLocal ID: 38647OAI: oai:DiVA.org:liu-37793DiVA: diva2:258642
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2017-12-13Bibliographically approved

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Lindström, TorbjörnHedman, ChristinaArnqvist, Hans

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