Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1990-1-16
pubmed:abstractText
Vitamin E uptake by Caco-2 cells, a human intestinal cell line, was studied by incubating the cells with alpha-tocopherol/triglyceride emulsions with or without bile activated lipase or lipoprotein lipase. During a 1-h incubation, vitamin E was transferred to Caco-2 cells only in the presence of triglyceride hydrolysis by bile activated lipase and not by lipoprotein lipase. Incubation with either lipase resulted in hydrolysis of approximately 20% of the medium [3H]-triolein to free fatty acids and a 3-5-fold increase in cellular radioactivity. In the absence of lipases but the presence of taurocholate, addition of oleic acid in an amount equal to the molar concentration of triglyceride (5.7 mM) to triglyceride emulsions containing either alpha-tocopherol or cholesteryl ester resulted in an increase in cellular [3H]-triglyceride and alpha-tocopherol or cholesteryl ester. We suggest that the absorption of hydrophobic molecules such as vitamin E may occur in the presence of bile and amphipathic lipids via the uptake of micellar neutral lipids by the intestine.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0016-5085
pubmed:author
pubmed:issnType
Print
pubmed:volume
98
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
96-103
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Vitamin E uptake by human intestinal cells during lipolysis in vitro.
pubmed:affiliation
Department of Medicine, New York University School of Medicine, New York.
pubmed:publicationType
Journal Article, In Vitro, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't