PAYCS Alleviates Scopolamine-Induced Memory Deficits in Mice by Reducing Oxidative and Inflammatory Stress and Modulation of Gut Microbiota-Fecal Metabolites-Brain Neurotransmitter Axis
文献类型： 外文期刊
作者： Zhao, Tiantian 1 ; Zhong, Saiyi 2 ; Xu, Jucai 3 ; Jiao, Wenjuan 1 ; Liu, Weifeng 1 ; Huang, Lihua 4 ; Zhang, Yehui 1 ; Zhang, Yousheng 1 ;
作者机构： 1.Guangdong Acad Agr Sci, Sericulture & Agri Food Res Inst, Key Lab Funct Foods, Minist Agr & Rural Affairs,Guangdong Key Lab Agr, Guangzhou 510610, Peoples R China
2.Guangdong Ocean Univ, Coll Food Sci & Technol, Guangdong Prov Key Lab Aquat Prod Proc & Safety, Zhanjiang 524088, Peoples R China
3.Wuyi Univ, Sch Biotechnol & Hlth Sci, Jiangmen 529020, Peoples R China
4.Guangzhou City Polytech, Dept Food, Guangzhou 510405, Peoples R China
关键词： peptides; scopolamine; gut microbiota; fecal metabolites; brain neurotransmitters
期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：5.895； 五年影响因子：6.048 ）
ISSN： 0021-8561
年卷期： 2022 年 70 卷 9 期
页码：
收录情况： SCI
摘要： The bioactive peptide PAYCS (Pro-Ala-Tyr-Cys-Ser) identified from anchovy hydrolysates has been reported to be positive in memory alleviation. The gut microbiota-brain axis plays a vital role in brain functions, which could be affected by nutritional supplementation. Herein, we found that PAYCS at different concentrations (PAYCS-L and PAYCS-H) showed various improving effects in behavioral tests and alleviation effects on oxidative as well as inflammatory stress in the scopolamine-induced AD mouse model. The 16S rRNA results illustrated that PAYCS-L altered the ratio of Bacteroidetes/Firmicutes and PAYCS treatment elevated the relative abundance of Cacteroidaceae and Prevotellaceae. Notably, administration of PAYCS significantly upregulated memory-related metabolites and neurotransmitters. Overall, PAYCS-L reversed memory deficits of amnesiac mice partially via the modulation of gut microbiota-metabolites-brain neurotransmitter axis. For PAYCS-H, functions might be involved in the reversal of oxidative and inflammatory impairments in the liver and serum, which was also associated with the changed intestinal microbiota and fecal metabolites.
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