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Title: 1,25-Dihydroxyvitamin D3 prevents insulitis in NOD mice
Authors: Mathieu, Chantal ×
Laureys, Jozef
Sobis, H
Vandeputte, Michel
Waer, Mark
Bouillon, Roger #
Issue Date: Nov-1992
Series Title: Diabetes vol:41 issue:11 pages:1491-5
Abstract: The active form of vitamin D, 1,25(OH)2D3, can prevent various forms of experimentally induced autoimmune disorders. The aim of this study was to confirm these findings in NOD mice that spontaneously develop an autoimmune type of diabetes mellitus. Therefore, the effect of a long-term 1,25(OH)2D3 treatment on the incidence of insulitis, the histological lesion preceding diabetes, was studied. Forty-three NOD mice were treated with 1,25(OH)2D3 (5 micrograms/kg) i.p. every other day from age 21 days on, when no insulitis was present yet. At day 100, 16 control mice receiving the treatment vehicle (arachis oil) had an incidence of insulitis of 75%, whereas only 41% of the 1,25(OH)2D3-treated animals developed insulitis (P < 0.025). Calcemia, determined 24 h after the last 1,25(OH)2D3 injection was 2.5 +/- 0.1 mM, which was higher than in control animals (2.3 +/- 0.1 mM), but was well tolerated. Cellular immunity, as assessed with the mixed lymphocyte reaction performed at day 100, was not impaired significantly. This study demonstrates that long-term treatment with high doses of 1,25(OH)2D3 is able to decrease the incidence of insulitis in spontaneous autoimmune diabetes without major side effects.
ISSN: 0012-1797
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Medical Clerkships Centers
Laboratory of Nephrology
Clinical and Experimental Endocrinology
Laboratory of Experimental Transplantation
× corresponding author
# (joint) last author

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