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Banxia Xiexin Decoction Alleviated cerebral Glucose Metabolism Disorder by Regulating Intestinal Microbiota in APP/PS1 Mice

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Chinese Journal of Integrative Medicine 2024年第8期30卷 701-712页

作者： GAO Chen-yan QIN Gao-feng ZHENG Ming-cui TIAN Mei-jing HE Yan-nan WANG Peng-wen Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing Dongzhimen HospitalBeijing University of Chinese MedicineBeijing100700China Neurology Department Binzhou Medical University HospitalBinzhouShandong Province256603China

Objective To identify whether Banxia Xiexin Decoction(BXD)alleviates cerebral glucose metabolism disorder by intestinal microbiota regulation in APP/PS1 *** Forty-five 3-month-old male APP/PS1 mice were divided into 3 groups using a random number table(n=15 per group),including a model group(MG),a liraglutide group(LG)and a BXD group(BG).Fifteen 3-month-old male C57BL/6J wild-type mice were used as the control group(CG).Mice in the BG were administered BXD granules by gavage at a dose of 6 g/(kg·d)for 3 months,while mice in the LG were injected intraperitoneally once daily with Liraglutide Injection(25 nmol/kg)for 3 ***,liquid chromatography with tandem-mass spectrometry was used to analyze the active components of BXD granules and the medicated serum of ***,the cognitive deficits,Aβpathological change and synaptic plasticity markers,including synaptophysin(SYP)and postsynaptic density protein 95(PSD95),were measured in APP/PS1 *** glucose uptake was detected by micropositron emission *** microbial constituents were detected by 16S rRNA *** levels of intestinal glucagon-like peptide 1(GLP-1)and cerebral GLP-1 receptor(GLP-1R),as well as the phosphoinositide-3-kinase/protein kinase B/glycogen synthase kinase-3β(PI3K/Akt/GSK3β)insulin signaling pathway were determined by immunohistochemical(IHC)staining and Western blot analysis,*** BXD ameliorated cognitive deficits and Aβpathological features(P<0.01).The expressions of SYP and PSD95 in the BG were higher than those in the MG(P<0.01).Brain glucose uptake in the BG was higher than that in the MG(P<0.01).The intestinal microbial composition in the BG was partially *** levels of intestinal GLP-1 in the BG were higher than those in the MG(P<0.01).Compared with the MG,the expression levels of hippocampal GLP-1R,Akt,PI3K and p-PI3K in the BG were significantly increased(P<0.01),while the levels of GSK3βwere reduced(P<0.01).Conclusion BXD

关键词： Banxia Xiexin Decoction Alzheimer's disease intestinal microbiota glucagon-like peptide 1 cerebral insulin resistance phosphoinositide-3-kinase/proteinkinase B/glycogen synthase kinase-3β Chinese medicine

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