Abstract

1.Little is known about the activities and regulation of cytochrome P4503A (CYP3A) enzymes in porcine colon in response to specific feeding components.2.We added hydrolyzable tannins to the diet of fattening boars and studied its effect on the expression of hepatic and intestinal CYP3A.3.In total, 51 LandracexLarge White boars were assigned to the following treatment groups: control (without the addition of hydrolysable tannins), T1 (diet-containing 1% hydrolysable tannin extract), T2 (diet-containing 2% hydrolysable tannin extract) and T3 (diet-containing 3% hydrolysable tannin extract). CYP3A expression and activity were measured in microsomes prepared from liver and colon tissue.4.CYP3A protein expression and activity were increased in the colon of pigs fed 2% and 3% tannins, while no changes were observed with lower tannin concentrations, or in the liver of any treatment groups. Also, it was demonstrated that colon mucosa possess CYP3A activity similar to that measured in the liver.5.The present results provide the first evidence that tannin supplementation can modulate CYP3A in porcine colon mucosa in vivo. The physiological significance of this finding for the health status of the individual animal needs further investigation.

Keywords

Benzyloxy-4-trifluoromethylcoumarin-O-debenzyloxylase; colon mucosa; cytochrome P450; dietary tannins; liver; pig

Published in

Xenobiotica
2016, Volume: 46, number: 7, pages: 591-596 Publisher: TAYLOR & FRANCIS LTD

SLU Authors

• Zamaratskaia, Galia

  • Department of Molecular Sciences, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Biochemistry and Molecular Biology
Other Natural Sciences not elsewhere specified


Publication identifier

DOI: https://doi.org/10.3109/00498254.2015.1099081

Permanent link to this page (URI)

https://res.slu.se/id/publ/77973