Linked Life Data

6619978

Source:http://linkedlifedata.com/resource/pubmed/id/6619978

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
1983-11-23
pubmed:abstractText
The use of retinyl ester as a tracer for chylomicrons and chylomicron remnants depends on the observation that newly absorbed dietary retinol is transported as retinyl ester in plasma chylomicrons or chylomicron remnants and also on the assumption that organs other than intestine do not contribute retinyl ester to plasma. To measure the secretion of retinyl ester by rabbit liver, the liver was labeled by injecting labeled retinol intravenously 1) as a colloidal dose, 2) incorporated into liposomes or 3) dispersed in a solution of Tween 20. Depending on the dose, between 63 and 80% of the labeled retinol in the liver was esterified and was found in both parenchymal and nonparenchymal cells. For all types of doses in both normal and cholesterol-fed rabbits, less than 1% of the injected dose was present in the plasma as retinyl ester during the 24-hour time period after injection. The secretion of retinyl ester by liver in response to the uptake of retinyl ester-enriched chylomicrons was also measured. This was done by feeding a diet enriched in retinol followed by a retinol-free diet. Only an insignificant quantity of retinyl ester accumulated in plasma during a 24-hour period after blocking the removal of triglyceride-rich lipoproteins with Triton WR 1339. Apparently, there is little, if any, secretion of retinyl ester by the liver of normal or cholesterol-fed rabbits.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0022-3166
pubmed:author
pubmed:issnType
Print
pubmed:volume
113
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1995-2001
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1983
pubmed:articleTitle
Lack of secretion of retinyl ester by livers of normal and cholesterol-fed rabbits.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't