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BMI is an important driver of beta-cell loss in type 1 diabetes upon diagnosis in 10 to 18-year-old children
University of Campus Biomed, Italy.
MRC Epidemiol Unit, England.
University of Dusseldorf, Germany.
Semmelweis Univ, Hungary.
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2015 (English)In: European Journal of Endocrinology, ISSN 0804-4643, E-ISSN 1479-683X, Vol. 172, no 2, 107-113 p.Article in journal (Refereed) Published
Abstract [en]

Objective: Body weight-related insulin resistance probably plays a role in progression to type 1 diabetes, but has an uncertain impact following diagnosis. In this study, we investigated whether BMI measured at diagnosis was an independent predictor of C-peptide decline 1-year post-diagnosis. Design: Multicentre longitudinal study carried out at diagnosis and up to 1-year follow-up. Methods: Data on C-peptide were collected from seven diabetes centres in Europe. Patients were grouped according to age at diagnosis (less than5 years, n = 126; greater than5 years less than10 years, n = 295; greater than10 years less than18 years, n = 421; greater than18 years, n = 410). Linear regression was used to investigate whether BMI was an independent predictor of change in fasting C-peptide over 1 year. Models were additionally adjusted for baseline insulin dose and HbA1c. Results: In individuals diagnosed between 0 and 5 years, 5 and 10 years and those diagnosed greater than18 years, we found no association between BMI and C-peptide decline. In patients aged 10-18 years, higher BMI at baseline was associated with a greater decline in fasting C-peptide over 1 year with a decrease (beta 95% CI; P value) of 0.025 (0.010, 0.041) nM/kg per m(2) higher baseline BMI (P = 0.001). This association remained significant after adjusting for gender and differences in HbA1c and insulin dose (beta = 0.026, 95% CI = 0.0097, 0.042; P = 0.002). Conclusions: These observations indicate that increased body weight and increased insulin demand are associated with more rapid disease progression after diagnosis of type 1 diabetes in an age group 10-18 years. This should be considered in studies of beta-cell function in type 1 diabetes.

Place, publisher, year, edition, pages
BioScientifica , 2015. Vol. 172, no 2, 107-113 p.
National Category
Endocrinology and Diabetes
URN: urn:nbn:se:liu:diva-115328DOI: 10.1530/EJE-14-0522ISI: 000349458000007PubMedID: 25378371OAI: diva2:795063

Funding Agencies|Centro Internazionale Studi Diabete; Instituto Carlos III, Spain [FIS 061104]

Available from: 2015-03-13 Created: 2015-03-13 Last updated: 2016-03-29Bibliographically approved

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Ludvigsson, JohnnyNordwall, Maria
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Division of Clinical SciencesDepartment of Paediatrics in LinköpingFaculty of Medicine and Health SciencesDepartment of Paediatrics in Norrköping
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European Journal of Endocrinology
Endocrinology and Diabetes

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