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Review
. 2011 Dec 5;347(1-2):106-20.
doi: 10.1016/j.mce.2011.08.016. Epub 2011 Aug 26.

Vitamin D and Diabetes: Its Importance for Beta Cell and Immune Function

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Review

Vitamin D and Diabetes: Its Importance for Beta Cell and Immune Function

Heidi Wolden-Kirk et al. Mol Cell Endocrinol. .

Abstract

Experimental evidence indicates that vitamin D may play a role in the defense against type 1 diabetes (T1D) as well as type 2 diabetes (T2D). Epidemiological data have established a link between vitamin D deficiency and an increased incidence of both T1D and T2D, whereas early and long-term vitamin D supplementation may decrease the risk of these disorders. The protective effects of vitamin D are mediated through the regulation of several components such as the immune system and calcium homeostasis. However, an increasing amount of evidence suggests that vitamin D also affects beta cells directly thereby rendering them more resistant to the types of cellular stress encountered during T1D and T2D. This review evaluates the role of vitamin D signaling in the pathogenesis of T1D and T2D with a special emphasis on the direct effects of vitamin D on pancreatic beta cells.

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