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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1992-3-23
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pubmed:abstractText |
The effects of clofibrate feeding on the metabolism of polyunsaturated fatty acids were studied in isolated rat hepatocytes. Administration of clofibrate stimulated the oxidation and particularly the peroxisomal beta-oxidation of all the fatty acids used. The increase in oxidation products was markedly higher when n-3 fatty acids were used as substrate, indicating that peroxisomes contribute more to the oxidation of n-3 than n-6 fatty acids. The whole increase in oxidation could be accounted for by a corresponding decrease in acylation in triacylglycerol while the esterification in phospholipids remained unchanged. A marked stimulation of the amounts of newly synthesized C16 and C18 fatty acids recovered, was observed when 18:2(n-6), 20:3(n-6), 18:3 (n-3) and 20:5(n-3), but not when 20:4(n-6) and 22:4(n-6) were used as substrate. This agrees with the view that extra-mitochondrial acetyl-CoA produced from peroxisomal beta-oxidation is more easily used for fatty acid new synthesis than acetyl-CoA from mitochondrial beta-oxidation. The delta 6 and delta 5 desaturase activities were distinctly higher in cells from clofibrate fed rats indicating a stimulating effect.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Clofibrate,
http://linkedlifedata.com/resource/pubmed/chemical/Dietary Fats,
http://linkedlifedata.com/resource/pubmed/chemical/Fatty Acid Desaturases,
http://linkedlifedata.com/resource/pubmed/chemical/Fatty Acids, Unsaturated,
http://linkedlifedata.com/resource/pubmed/chemical/Linoleoyl-CoA Desaturase,
http://linkedlifedata.com/resource/pubmed/chemical/delta-5 fatty acid desaturase
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pubmed:status |
MEDLINE
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pubmed:month |
Jan
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pubmed:issn |
0006-3002
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
24
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pubmed:volume |
1123
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
170-6
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pubmed:dateRevised |
2009-11-19
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pubmed:meshHeading |
pubmed-meshheading:1739748-Animals,
pubmed-meshheading:1739748-Clofibrate,
pubmed-meshheading:1739748-Dietary Fats,
pubmed-meshheading:1739748-Fatty Acid Desaturases,
pubmed-meshheading:1739748-Fatty Acids, Unsaturated,
pubmed-meshheading:1739748-Linoleoyl-CoA Desaturase,
pubmed-meshheading:1739748-Lipid Peroxidation,
pubmed-meshheading:1739748-Liver,
pubmed-meshheading:1739748-Male,
pubmed-meshheading:1739748-Rats,
pubmed-meshheading:1739748-Rats, Inbred Strains
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pubmed:year |
1992
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pubmed:articleTitle |
Effects of clofibrate feeding on essential fatty acid desaturation and oxidation in isolated rat liver cells.
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pubmed:affiliation |
Institute for Clinical Biochemistry, University of Oslo, Norway.
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pubmed:publicationType |
Journal Article
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