Article (Scientific journals)
Hydroxytyrosol attenuates diquat-induced oxidative stress by activating Nrf2 pathway and modulating colonic microbiota in mice.
Han, Hui; Zhong, Ruqing; Zhang, Shunfen et al.
2023In Journal of Nutritional Biochemistry, 113, p. 109256
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Keywords :
Antioxidant capacity; Gut microbiota; Hydroxytyrosol; NF-E2-related factor 2; Oxidative stress; Antioxidants; Catalase; NF-E2-Related Factor 2; Diquat; 3,4-dihydroxyphenylethanol; RNA, Ribosomal, 16S; Animals; Mice; Catalase/metabolism; Diquat/toxicity; RNA, Ribosomal, 16S/metabolism; Oxidative Stress; Antioxidants/pharmacology; Antioxidants/metabolism; NF-E2-Related Factor 2/genetics; NF-E2-Related Factor 2/metabolism; Endocrinology, Diabetes and Metabolism; Biochemistry; Molecular Biology; Nutrition and Dietetics; Clinical Biochemistry
Abstract :
[en] This study was conducted to investigate the antioxidant effects of hydroxytyrosol (HT) administration in diquat (DQ)-challenged mice. The results showed that HT treatment markedly alleviated DQ-induced oxidative stress, which was indicated by the enhanced total antioxidant capacity (T-AOC), increased activities of superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), and catalase and decreased malondialdehyde (MDA) concentration in serum. Additionally, HT increased the mRNA expression levels of NF-E2-related factor 2 (Nrf2) and its downstream genes, including NADPH quinone oxidoreductase 1 (NQO1) and catalase (CAT) in the small intestine of DQ-challenged mice. 16S rRNA gene sequencing results showed that HT treatment increased the relative abundance of Firmicutes and Lactobacillus and decreased the relative abundance of Bacteroidetes. Interestingly, Pearson correlation analysis showed that there were strong association between colonic Firmicutes, Lactobacillus, and Bacteroidetes and the activities of serum antioxidant enzymes. Meanwhile, HT significantly enhanced the colonic butyrate concentration in DQ-challenged mice. Additionally, HT treatment decreased the serum metabolites involving in glycerophospholipid metabolism, pentose, and glucuronate interconversions, which were associated with alleviated oxidative stress. These results indicate that oral administration of 100 mg/kg body weight HT alleviates oxidative stress in DQ-challenged mice, which may involve Nrf2 signaling pathways via modulation of colonic microbiota.
Disciplines :
Microbiology
Author, co-author :
Han, Hui  ;  Université de Liège - ULiège > TERRA Research Centre
Zhong, Ruqing;  State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
Zhang, Shunfen;  State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
Wang, Mengyu;  State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
Wen, Xiaobin;  State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
Yi, Bao;  State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
Zhao, Yong;  State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
Chen, Liang;  State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China. Electronic address: chenliang01@caas.cn
Zhang, Hongfu;  State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China. Electronic address: zhanghongfu@caas.cn
Language :
English
Title :
Hydroxytyrosol attenuates diquat-induced oxidative stress by activating Nrf2 pathway and modulating colonic microbiota in mice.
Publication date :
March 2023
Journal title :
Journal of Nutritional Biochemistry
ISSN :
0955-2863
Publisher :
Elsevier Inc., United States
Volume :
113
Pages :
109256
Peer reviewed :
Peer Reviewed verified by ORBi
Funding text :
This work was supported by National Natural Science Foundation of China ( U22A20515 ), Guizhou Science and Technology Support Program ( 2021-149 ) and Agricultural Science and Technology Innovation Program ( CAAS-ZDRW202006-02 , ASTIPIAS07 ).
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since 21 April 2023

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