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Walter, M.* ; Kaupper, T.* ; Adler, K.* ; Foersch, J.* ; Bonifacio, E.* ; Ziegler, A.-G.*

No effect of the 1alpha,25-dihydroxyvitamin D3 on beta-cell residual function and insulin requirement in adults with new-onset type 1 diabetes.

Diabetes Care 33, 1443-1448 (2010)
DOI PMC
Open Access Green as soon as Postprint is submitted to ZB.
OBJECTIVE: To determine whether daily intake of 1alpha,25-dihydroxyvitamin D(3) [1,25(OH)(2)D(3)] is safe and improves beta-cell function in patients with recently diagnosed type 1 diabetes. RESEARCH DESIGN AND METHODS: Safety was assessed in an open study of 25 patients aged 18-39 years with recent-onset type 1 diabetes who received 0.25 microg 1,25(OH)(2)D(3) daily for 9 months. An additional 40 patients were randomly assigned to 0.25 microg 1,25(OH)(2)D(3) or placebo daily for 9 months and followed for a total of 18 months for safety, beta-cell function, insulin requirement, and glycemic control. RESULTS: Safety assessment showed values in the normal range in nearly all patients, regardless of whether they received 1,25(OH)(2)D(3) or placebo. No differences in AUC C-peptide, peak C-peptide, and fasting C-peptide after a mixed-meal tolerance test between the treatment and placebo groups were observed at 9 and 18 months after study entry, with approximately 40% loss for each parameter over the 18-month period. A1C and daily insulin requirement were similar between treatment and placebo groups throughout the study follow-up period. CONCLUSIONS: Treatment with 1,25(OH)(2)D(3) at a daily dose of 0.25 microg was safe but did not reduce loss of beta-cell function.
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Publication type Article: Journal article
Document type Scientific Article
ISSN (print) / ISBN 0149-5992
e-ISSN 1935-5548
Journal Diabetes Care
Quellenangaben Volume: 33, Issue: 7, Pages: 1443-1448 Article Number: , Supplement: ,
Publisher American Diabetes Association
Publishing Place Alexandria, Va.
Reviewing status Peer reviewed
Institute(s) Institute of Diabetes and Obesity (IDO)
Institute of Diabetes Research (IDF)
Institute of Pancreatic Islet Research (IPI)