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Effects of turmeric (Curcuma longa L) on the expression of hepatic genes associated with biotransformation, anti-oxidant and immune systems in broiler chickens fed aflatoxin.

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Title Effects of turmeric (Curcuma longa L) on the expression of hepatic genes associated with biotransformation, anti-oxidant and immune systems in broiler chickens fed aflatoxin.
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Creator Yarru LP
Settivari RS
Gowda NKS
Antoniou E
Ledoux DR
Rottinghaus GE.
 
Subject Animal nutrition
 
Description Not Available
The objective of the present study was to evaluate the efficacy of curcumin, an antioxidant found in turmeric (Curcuma longa) powder (TMP), to ameliorate changes in gene expression in the livers of broiler chicks fed aflatoxin B1 (AFB1). Four pen replicates of 5 chicks each were assigned to each of 4 dietary treatments, which included the following: (A) basal diet containing no AFB1 or TMP (control), (B) basal diet supplemented with TMP (0.5%) that supplied 74 mg/kg of curcumin, (C) basal diet supplemented with 1.0 mg of AFB1/kg of diet, and (D) basal diet supplemented with TMP that supplied 74 mg/kg of curcumin and 1.0 mg of AFB1/kg of diet. Aflatoxin reduced (P < 0.05) feed intake and BW gain and increased (P < 0.05) relative liver weight. Addition of TMP to the AFB1 diet ameliorated (P < 0.05) the negative effects of AFB1 on growth performance and liver weight. At the end of the 3 -wk treatment period, livers were collected (6 per treatment) to evaluate changes in the expression of genes involved in antioxidant function [catalase (CAT), superoxide dismutase (SOD), glutathione peroxidase (GPx), glutathione S -transferase (GST)], biotransformation [epoxide hydrolase (EH), cytochrome P450 1A1 and 2H1 (CYP1A1 and CYP2H1)], and the immune system [interleukins 6 and 2 (IL -6 and IL -2)]. Changes in gene expression were determined using the quantitative real -time PCR technique. There was no statistical difference in gene expression among the 4 treatment groups for CAT and IL -2 genes. Decreased expression of SOD, GST, and EH genes due to AFB1 was alleviated by inclusion of TMP in the diet. Increased expression of IL -6, CYP1A1 and CYP2H1 genes due to AFB1 was also alleviated by TMP. The current study demonstrates partial protective effects of TMP on changes in expression of antioxidant, biotransformation, and immune system genes in livers of chicks fed AFB1. Practical application of the research is supplementation of TMP in diets to prevent or reduce the effects of aflatoxin in chicks fed aflatoxin -contaminated diets.
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Date 2024-05-31T12:29:09Z
2024-05-31T12:29:09Z
2009-01-01
 
Type Journal
 
Identifier Yarru LP, Settivari RS, Gowda NKS, Antoniou E, Ledoux DR and Rottinghaus GE. (2009). Effects of turmeric (Curcuma longa L) on the expression of hepatic genes associated with biotransformation, anti-oxidant and immune systems in broiler chickens fed aflatoxin. Poultry Science. 88: 2620-2627.
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http://krishi.icar.gov.in/jspui/handle/123456789/83004
 
Language English
 
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