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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1990-7-16
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pubmed:abstractText |
The influence of food restriction (FR) on the drug-inducible capacity of liver microsomal cytochrome P-450s IA1, IA2 and IIB1 and IIB2 was studied in 20-month-old male Fischer-344 rats. ELISA and Western Blotting revealed that the induction of the cytochrome P-450-IA1/IA2 and P-450-IIB1/IIB2 enzymes was considerably higher in the liver microsomes of FR rats than in their ad libitum (AL) fed counterparts. In order to determine whether the higher P-450 enzyme levels in FR rats were a reflection of an increased synthesis rate or a stabilization of these enzymes, hybridization studies were performed with a cDNA probe for P-450-IIB1/IIB2. These studies show markedly higher levels of P-450-IIB1/IIB2 mRNAs in the livers of FR rats as compared to AL animals. These results suggest that it is possible to prevent the age-dependent loss of drug-induced cytochrome P-450s by 40% dietary restriction which suggest FR may improve the drug-metabolizing capacity during aging.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Cytochrome P-450 Enzyme System,
http://linkedlifedata.com/resource/pubmed/chemical/Dioxoles,
http://linkedlifedata.com/resource/pubmed/chemical/RNA, Messenger,
http://linkedlifedata.com/resource/pubmed/chemical/Safrole,
http://linkedlifedata.com/resource/pubmed/chemical/isosafrole
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pubmed:status |
MEDLINE
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pubmed:issn |
0158-5231
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
20
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
725-30
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:2353922-Aging,
pubmed-meshheading:2353922-Animals,
pubmed-meshheading:2353922-Blotting, Western,
pubmed-meshheading:2353922-Body Weight,
pubmed-meshheading:2353922-Cytochrome P-450 Enzyme System,
pubmed-meshheading:2353922-Dioxoles,
pubmed-meshheading:2353922-Enzyme Induction,
pubmed-meshheading:2353922-Enzyme-Linked Immunosorbent Assay,
pubmed-meshheading:2353922-Food Deprivation,
pubmed-meshheading:2353922-Liver,
pubmed-meshheading:2353922-Male,
pubmed-meshheading:2353922-Microsomes, Liver,
pubmed-meshheading:2353922-Organ Size,
pubmed-meshheading:2353922-RNA, Messenger,
pubmed-meshheading:2353922-Rats,
pubmed-meshheading:2353922-Rats, Inbred F344,
pubmed-meshheading:2353922-Safrole
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pubmed:year |
1990
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pubmed:articleTitle |
Food restriction prevents the loss of isosafrole inducible cytochrome P-450 mRNA and enzyme levels in aging rats.
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pubmed:affiliation |
Department of Medicine, University of Texas Health Science Center, San Antonio 78284-7874.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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