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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Absorption, hydroxylation, and excretion of vitamin D3 in primary biliary cirrhosis.

Oral vitamin D3 was poorly absorbed by 4 out of 6 patients with primary biliary cirrhosis; absorption was negatively correlated with faecal fat excretion. 25-hydroxylation of vitamin D3 given by mouth or intravenously was not impaired in the patients compared with controls of similar vitamin-D nutritional status. Urinary radioactivity derived from the intravenous dose of vitamin D3 was significantly greater in patients than in controls and was positively correlated with the serum-bilirubin concentration. Excretion in the urine may lead to loss of administered and endogenous vitamin D and thus contribute to vitamin-D deficiency in patients with primary biliary cirrhosis.[1]


  1. Absorption, hydroxylation, and excretion of vitamin D3 in primary biliary cirrhosis. Krawitt, E.L., Grundman, M.J., Mawer, E.B. Lancet (1977) [Pubmed]
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