Article (Scientific journals)
High Temperature-Induced Oxidative Stress Affects Systemic Zinc Homeostasis in Broilers by Regulating Zinc Transporters and Metallothionein in the Liver and Jejunum.
Xiao, Chuanpi; Kong, Linglian; Pan, Xue et al.
2022In Oxidative Medicine and Cellular Longevity, 2022, p. 1427335
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Keywords :
Carrier Proteins; zinc-binding protein; Metallothionein; Zinc; Animals; Homeostasis; Jejunum/metabolism; Liver/metabolism; Oxidative Stress; Temperature; Zinc/pharmacology; Chickens/metabolism; Metallothionein/metabolism; Broiler chickens; Growth performance; Heat stress; Highest temperature; Homoeostasis; Metallothioneins; Stress-induced; Temperature-induced; Up-regulation; Zinc transporters; Animal Feed; Chickens; Jejunum; Liver; Biochemistry; Aging; Cell Biology; General Medicine
Abstract :
[en] To investigate the change in zinc homeostasis of broilers under heat stress, 512 broiler chickens were raised to the age of 28 days. The broilers were then assigned to heat stress and normal temperature (36.0°C vs. 26.0°C) groups for 7 days. The results showed that oxidative stress induced by high temperature had a negative effect on the growth performance of broilers. Heat stress altered zinc homeostasis and led to a redistribution of zinc in broilers, which was reflected in increased zinc concentrations in the jejunum, liver, and tibia. Upregulation of the expression of the zinc exporter ZnT1 and importers ZIP8 and ZIP14 in the jejunum indicated that more zinc was absorbed and transported from the jejunum into the blood, while the liver increased its capacity to hold zinc through upregulation of metallothionein (MT) expression, which was achieved by reducing ZnT1 expression and upregulating the expression of the importer ZIP3. The pathway was mediated by zinc transporters, but the capacity of MT to chelate and release zinc ions also played a crucial role. The mechanism of alterations in zinc homeostasis under heat stress was revealed by the changes in zinc transporters and MT levels in the intestine and liver. Heat stress also altered cecal microbial diversity and reduced the relative abundances of Bilophila and Dialister. In conclusion, broilers altered systemic zinc homeostasis through the regulation of zinc transporters and MT in the liver and jejunum to resist oxidative stress induced by high temperature.
Disciplines :
Animal production & animal husbandry
Author, co-author :
Xiao, Chuanpi  ;  Université de Liège - ULiège > TERRA Research Centre ; Department of Animal Science, Shandong Agricultural University, Taian, Shandong 271018, China
Kong, Linglian;  Department of Animal Science, Shandong Agricultural University, Taian, Shandong 271018, China
Pan, Xue;  Department of Animal Science, Shandong Agricultural University, Taian, Shandong 271018, China
Zhu, Qidong;  Department of Animal Science, Shandong Agricultural University, Taian, Shandong 271018, China
Song, Zhigang ;  Department of Animal Science, Shandong Agricultural University, Taian, Shandong 271018, China
Everaert, Nadia ;  Université de Liège - ULiège > TERRA Research Centre > Animal Sciences (AS)
Language :
English
Title :
High Temperature-Induced Oxidative Stress Affects Systemic Zinc Homeostasis in Broilers by Regulating Zinc Transporters and Metallothionein in the Liver and Jejunum.
Publication date :
09 March 2022
Journal title :
Oxidative Medicine and Cellular Longevity
ISSN :
1942-0900
eISSN :
1942-0994
Publisher :
Hindawi Limited, United States
Volume :
2022
Pages :
1427335
Peer reviewed :
Peer Reviewed verified by ORBi
Funding text :
This work was supported by a Shandong Province Agricultural Industry Technology grant (SDAIT-11-08).
Available on ORBi :
since 26 February 2024

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