Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
7
|
pubmed:dateCreated |
1991-7-25
|
pubmed:abstractText |
The present work tests the hypothesis that high fat/low carbohydrate diets elevate the level of liver microsomal cytochrome P450IIE1. Male Sprague-Dawley rats were fed liquid diets containing varied ratios of corn oil/carbohydrate for 4 d. Rats fed diets with higher fat/carbohydrate ratios produced higher serum acetone levels and higher hepatic microsomal P450IIE1 content and N-nitrosodimethylamine demethylase activity than those fed diets with lower fat/carbohydrate ratios. This dietary fat/carbohydrate effect on P450IIE1 also was observed with modified semipurified AIN-76A diets. In addition, both the quantity and the extent of unsaturation of dietary lipids affected P450IIE1 regulation. At moderate fat levels (5 and 20% diet), rats fed corn oil and menhaden oil diets produced higher P450IIE1 activity than those fed lard and olive oil diets. Rats fed a diet containing 20% corn oil or an amount of linoleic acid equivalent to the 20% corn oil diet showed twofold to threefold increases in the level of P450IIE1 over those fed a fat-free diet. Rats fed a 25% corn oil diet showed twofold higher enflurane metabolism in vivo than those fed a 0.5% corn oil diet. The present results suggest that the constitutive P450 enzyme level is regulated by dietary fat/carbohydrate ratios.
|
pubmed:grant | |
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Acetone,
http://linkedlifedata.com/resource/pubmed/chemical/Cytochrome P-450 CYP2E1,
http://linkedlifedata.com/resource/pubmed/chemical/Cytochrome P-450 Enzyme System,
http://linkedlifedata.com/resource/pubmed/chemical/Dietary Carbohydrates,
http://linkedlifedata.com/resource/pubmed/chemical/Dietary Fats,
http://linkedlifedata.com/resource/pubmed/chemical/Enflurane,
http://linkedlifedata.com/resource/pubmed/chemical/Linoleic Acids,
http://linkedlifedata.com/resource/pubmed/chemical/Oxidoreductases, N-Demethylating
|
pubmed:status |
MEDLINE
|
pubmed:month |
Jul
|
pubmed:issn |
0022-3166
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
121
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
959-65
|
pubmed:dateRevised |
2007-11-14
|
pubmed:meshHeading |
pubmed-meshheading:2051238-Acetone,
pubmed-meshheading:2051238-Animals,
pubmed-meshheading:2051238-Body Weight,
pubmed-meshheading:2051238-Cytochrome P-450 CYP2E1,
pubmed-meshheading:2051238-Cytochrome P-450 Enzyme System,
pubmed-meshheading:2051238-Dietary Carbohydrates,
pubmed-meshheading:2051238-Dietary Fats,
pubmed-meshheading:2051238-Enflurane,
pubmed-meshheading:2051238-Linoleic Acids,
pubmed-meshheading:2051238-Male,
pubmed-meshheading:2051238-Microsomes, Liver,
pubmed-meshheading:2051238-Oxidoreductases, N-Demethylating,
pubmed-meshheading:2051238-Rats,
pubmed-meshheading:2051238-Rats, Inbred Strains
|
pubmed:year |
1991
|
pubmed:articleTitle |
Regulation of hepatic microsomal cytochrome P450IIE1 level by dietary lipids and carbohydrates in rats.
|
pubmed:affiliation |
Department of Chemical Biology and Pharmacognosy, College of Pharmacy, Rutgers University, Piscataway, NJ 08855-0789.
|
pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
|