Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
1988-3-29
pubmed:abstractText
We studied the effect of the absence of bile salts on the absorption of vitamin D metabolites in vivo, in the biliary duct-ligated rat. The mesenteric, lymphatic absorption of the metabolites studied (vitamin D3, 25-hydroxyvitamin D3, and 1,25-dihydroxyvitamin D3) was almost completely abolished in the experimental animals. These results differed significantly (P less than 0.001) from those of the control rats. The 1,25-dihydroxyvitamin D3 absorption into the portal vein system was unaffected by the lack of biliary salts. The absorption of 25-hydroxyvitamin D3 was decreased and that of vitamin D3 was negligible, under the same experimental conditions. These data show that the more polar vitamin D metabolites, like 1,25-dihydroxyvitamin D3 and to some extent 25-hydroxyvitamin D3, are absorbed directly into the portal blood without the involvement of bile salts and micelle formation. Thus, the use of polar vitamin D metabolites should be considered in correcting hypovitaminosis D and osteomalacia in cases of chronic biliary salt depletion.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0021-2180
pubmed:author
pubmed:issnType
Print
pubmed:volume
23
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1114-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
Bile salt deficiency and the absorption of vitamin D metabolites. In vivo study in the rat.
pubmed:affiliation
Department of Medicine C, Toor Institute, Soroka Medical Center, Beer Sheva, Israel.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't