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Qingke β-glucan and Lactobacillus mitigate neuroinflammation and enhance cognitive function in an Alzheimer's disease mouse model

文献类型： 外文期刊

作者： Wu, Yusong 1 ; Shao, Yong 3 ; Shao, Xinyu 2 ; Yu, Hailong 4 ; Wang, Miao 1 ; Wang, Jing 1 ; She, Yongxin 1 ; Liu, Jia 5 ; Zhang, Tangwei 6 ; Li, Zuming 2 ; Abd El-Aty, A. M. 7 ;

作者机构： 1.Chinese Acad Agr Sci, Inst Qual Stand & Testing Technol Agroprod, State Key Lab Qual & Safety Agroprod, Beijing 100081, Peoples R China

2.Beijing Union Univ, Coll Hlth & Environm, Beijing 100081, Peoples R China

3.Beijing Technol & Business Univ, Key Lab Geriatr Nutr & Hlth, Minist Educ, Beijing 100048, Peoples R China

4.COFCO Corp, Nutr & Hlth Res Inst, Beijing 102209, Peoples R China

5.Beijing Polytech, Coll Bioengn, Beijing 100176, Peoples R China

6.Xizang Acad Agr & Anim Husb Sci, Inst Agr Prod Qual Stand & Testing Res, Lhasa 850032, Xizang, Peoples R China

7.Cairo Univ, Fac Vet Med, Dept Pharmacol, Giza 12211, Egypt

8.Ataturk Univ, Fac Med, Dept Med Genet, TR-25240 Erzurum, Turkiye

关键词： Qingke beta-glucan; Alzheimer's disease; Gut microbiota; Lactobacillus; Metabolic profiles

期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.5； 五年影响因子：8.7 ）

ISSN： 0141-8130

年卷期： 2025 年 319 卷

页码：

收录情况： SCI

摘要： Alzheimer's disease (AD) is one of the most prevalent neurodegenerative disorders and substantially impacts cognitive health and quality of life. Qingke (3-glucan (Q) and its combination with Lactobacillus (Q&P) demonstrated a notable ability to alleviate anxiety behaviors and improve cognitive and learning memory deficits in APP/PS1 mice, a widely used model for AD. Q&P effectively reduced amyloid-(3 accumulation and Tau phosphorylation, protecting neurons from degeneration. Additionally, it increased the mRNA expression of BDNF and SYP, reduced synaptic damage, and suppressed neuroinflammation by decreasing the mRNA levels of IL-6, IL-17 A, and IL-22. Q&P also activated the Nrf2 signaling pathway, enhanced SOD activity, mitigated oxidative damage, and restored gut microbiota dysbiosis. Metabolomic and 16S rRNA sequencing analyses revealed significant modulation of the intestinal microbiome and metabolic pathways, with key roles identified for Lactobacillus, Muribaculum, Candidatus_Stoquefichus, and Coriobacteriaceae_UCG-002. These microbiota adjustments influence tryptophan and linoleic acid metabolism, contributing to reduced inflammation and oxidative stress and improving neuronal health. By enhancing the intestinal microenvironment and regulating metabolic and microbial profiles, Q&P offers a sustainable and effective approach for preventing cognitive decline and promoting overall brain health in AD patients.

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