Effect of nine diets on mRNAs of phase-II conjugation enzymes in livers of mice.
1. Phase-II enzymes are important in metabolizing many xenobiotics including prescription drugs and chemical carcinogens. Whereas it is known that diet can alter the expression of phase-II conjugation enzymes, the previous studies are limited in using only two or three diets and examining only a few enzymes. 2. Adult male C57BL6 mice were fed one of nine diets for 3 weeks. Of the 87 genes encoding major hepatic phase-II enzymes, approximately one-half (43) were altered by at least one diet. Diet restriction altered the hepatic expression of the most genes encoding phase-II enzymes (27), followed by lab chow (15), atherogenic diet (13), high-fat diet (10), western diet (7), high-fructose diet (5), and essential fatty acid-deficient diet (3), whereas the low n-3 fatty acid diet had no effect on the hepatic expression of these phase-II enzymes. 3. This comprehensive study provides detailed information on which conjugation enzymes are changed by these diets, and these data can be used to further investigate the mechanism for these changes in messenger RNAs, and whether these changes result in alterations in enzyme activity and drug action.
a Department of Internal Medicine , University of Kansas Medical Center , Kansas City, KS , USA.|b Department of Clinical Pharmacology , Xiangya Hospital, Central South University , Changsha , P.R. China , and.
Ying
Y
Guo
a Department of Internal Medicine , University of Kansas Medical Center , Kansas City, KS , USA.
Julia Yue
JY
Cui
a Department of Internal Medicine , University of Kansas Medical Center , Kansas City, KS , USA.|c Department of Pharmacology , SUNY Upstate Medical University , Syracuse, NY , USA.
Hong
H
Lu
a Department of Internal Medicine , University of Kansas Medical Center , Kansas City, KS , USA.
Curtis D
CD
Klaassen
D000818:Animals; D004032:Diet / Q000662:veterinary*; D005247:Feeding Behavior; D008099:Liver / Q000201:enzymology*; D008297:Male; D050217:Metabolic Detoxication, Phase II / Q000502:physiology*; D051379:Mice; D008810:Mice, Inbred C57BL; D012333:RNA, Messenger / Q000378:metabolism; D015262:Xenobiotics / Q000378:metabolism*
D012333:RNA, Messenger; D015262:Xenobiotics
Diet; mRNA expression; microarray; phase-II conjugation enzyme,
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