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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1992-10-14
pubmed:abstractText
Male rats were fed diets containing olive or marine fish oils (10% w/w) with or without added cholesterol (1% w/w). After six weeks of feeding, the major fatty acid composition, fluidity, fatty acid desaturating and cholesterol biosynthesis/esterification related enzymes of liver microsomes were determined. Both olive oil and marine fish oil diets, without added cholesterol, enriched content of oleic and docosahexaenoic acids, respectively, of rat liver microsomes. The results were consistent with reduction in delta 6 and delta 5 desaturation of n-6 essential fatty acids and higher fluidity in the marine origin oil group. Inclusion of cholesterol into diets resulted in decreased membrane arachidonic acid content, with concomitant increase in linoleic acid content. Cholesterol feeding also decreased delta 6 and delta 5 desaturase activities, as well as membrane fluidity. Furthermore, the activity of acyl-CoA:cholesterol acyltransferase decreased, whereas the activity of hydroxymethylglutaryl-CoA reductase increased, in liver microsomes from both cholesterol-fat groups.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0300-9084
pubmed:author
pubmed:issnType
Print
pubmed:volume
74
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
551-6
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Influence of dietary cholesterol on polyunsaturated fatty acid composition, fluidity and membrane-bound enzymes in liver microsomes of rats fed olive and fish oil.
pubmed:affiliation
Instituto de la Grasa y sus Derivados (CSIC), Facultad de Farmacia, Sevilla, Spain.
pubmed:publicationType
Journal Article