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

作　　者：GAO Chen-yan QIN Gao-feng ZHENG Ming-cui TIAN Mei-jing HE Yan-nan WANG Peng-wen 

机构地区：[1]Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing,Dongzhimen Hospital,Beijing University of Chinese Medicine,Beijing,100700,China [2]Neurology Department,Binzhou Medical University Hospital,Binzhou,Shandong Province,256603,China

出　　处：《Chinese Journal of Integrative Medicine》2024年第8期701-712,共12页中国结合医学杂志（英文版）

基　　金：Supported by the Special Fund for Basic Scientific Research Operating Fees of Central Universities(No.2019-BUCMXJKY018)。

摘　　要：Objective To identify whether Banxia Xiexin Decoction(BXD)alleviates cerebral glucose metabolism disorder by intestinal microbiota regulation in APP/PS1 mice.Methods 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 months.Firstly,liquid chromatography with tandem-mass spectrometry was used to analyze the active components of BXD granules and the medicated serum of BXD.Then,the cognitive deficits,Aβpathological change and synaptic plasticity markers,including synaptophysin(SYP)and postsynaptic density protein 95(PSD95),were measured in APP/PS1 mice.Brain glucose uptake was detected by micropositron emission tomography.Intestinal microbial constituents were detected by 16S rRNA sequencing.The 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,respectively.Results 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 reversed.The 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 exhibited protective effects against Alzh

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 

分 类 号：R285.5[医药卫生—中药学]