Linked Life Data

1917346

Source:http://linkedlifedata.com/resource/pubmed/id/1917346

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1991-10-29
pubmed:abstractText
Vitamin A levels (retinol equivalents) in the urine of canines were between 423 ng/ml (dog) and 6304 ng/ml (silver fox). Neither vitamin A nor vitamin E was found in the urine of herbivores, omnivorous and rodents. No vitamin A but low levels of vitamin E were detected in cats. Vitamin A in the urine was present as retinol and retinyl esters (basically retinyl palmitate/oleate). The total excretion of vitamin A represented 15 to 63% of the daily uptake in dogs, while less than 4% of vitamin E was excreted. Results after precipitation and ultracentrifugation indicate that similar carrier proteins may exist for retinol, retinyl esters and alpha-tocopherol in the urine. The biological significance of this phenomenon is discussed with regard to the high concentrations of retinyl esters in the blood plasma of carnivores bound to lipoproteins.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0300-9831
pubmed:author
pubmed:issnType
Print
pubmed:volume
61
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
110-3
pubmed:dateRevised
2007-2-21
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Vitamin A in the urine of carnivores.
pubmed:affiliation
Institute of Physiology, Physiological Chemistry and Nutrition Physiology, Veterinary Faculty, Ludwig-Maximilians-Universität München, West Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't