“Activation” of vitamin D by the liver

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Abstract

Isolation of the liver from the circulation of rats eliminates almost completely their ability to convert [1,2]-3H vitamin D3 into its biologically active metabolite, 25-hydroxycholecalciferol, as well as certain other metabolites. It is concluded that the liver is the major if not the only physiologic site of hydroxylation of vitamin D3 (cholecalciferol) into 25-hydroxycholecalciferol.

Authors

G. Ponchon, A. L. Kennan, H. F. DeLuca