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Feeding driet chicory root to pigs decrease androstenone accumulation in fat by increasing hepatic 3β hydroxysteroid dehydrogenase expression

Rasmussen, Martin Krøyer; Brunius, Carl; Zamaratskaia, Galia and Ekstrand, Bo (2012) Feeding driet chicory root to pigs decrease androstenone accumulation in fat by increasing hepatic 3β hydroxysteroid dehydrogenase expression. Journal of Steroid Biochemistry and Molecular Biology, 130, pp. 90-95.

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Summary

The present study investigated the in vivo effect of chicory root on testicular steroid concentrations and androstenone metabolizing enzymes in entire male pigs. Furthermore, the effect on skatole and indole concentrations in plasma and adipose tissue was investigated. The pigs were divided into two groups; one receiving experimental feed containing 10% dried chicory root for 16 days before slaughter, the control group was fed a standard diet. Plasma, adipose and liver tissue samples were collected at slaughter. Plasma was analyzed for the concentration of testosterone, estradiol, insulin-like growth factor 1 (IGF-1), skatole and indole. Adipose tissue was analyzed for the concentration of androstenone, skatole and indole, while the liver tissue was analyzed for mRNA and protein expressions of 3β-hydroxysteroid dehydrogenase (3β-HSD), sulfotransferase 2A1 and heat-shock protein 70 (HSP70). The results showed that the androstenone concentrations in the adipose tissue of chicory fed pigs were significantly (p < 0.05) lower and indole concentrations were higher (p < 0.05) compared to control fed pigs. Moreover the chicory root fed pigs had increased mRNA and protein expression of 3β-HSD and decreased HSP70 expression (p < 0.05). Testosterone and IGF-1 concentrations in plasma as well as skatole concentrations in adipose tissue were not altered by dietary intake of chicory root. It is concluded that chicory root in the dietreduces the concentration of androstenone in adipose tissue via induction of 3�-HSD, and that these changes were not due to increased cellular stress.


EPrint Type:Journal paper
Keywords:chicory root, androstenone,skatole, indole
Subjects: Animal husbandry > Feeding and growth
Research affiliation: Denmark > Organic RDD 1 > NO-CAST
DOI:10.1016{j.jsbmb.2012.01.003
Deposited By: Madsen, Academic employee Mette Graves
ID Code:22088
Deposited On:02 Jan 2013 08:09
Last Modified:09 Apr 2015 10:15
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

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