Therapeutic Effect of Buyang Huanwu Decoction on the Gut Microbiota and Hippocampal Metabolism in a Rat Model of Cerebral Ischemia

被引:18
|
作者
Tang, Rongmei [1 ]
Yi, Jian [1 ]
Lu, Shuangying [1 ]
Chen, Bowei [1 ]
Liu, Baiyan [2 ]
机构
[1] Hunan Univ Chinese Med, Affiliated Hosp 1, Changsha, Peoples R China
[2] Hunan Univ Chinese Med, Coll Integrated Tradit Chinese & Western Med, Changsha, Peoples R China
来源
FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY | 2022年 / 12卷
基金
中国国家自然科学基金;
关键词
cerebral ischemia; Buyang Huanwu decoction; gut microbiota; untargeted metabolomics; hippocampal metabolism; inflammation; BRAIN ISCHEMIA; ANTIOXIDANT DEFENSES; L-CITRULLINE; IN-VITRO; INFLAMMATION; STROKE; COMPONENTS; ADENOSINE; GLUTAMINE; BUTYRATE;
D O I
10.3389/fcimb.2022.873096
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
Buyang Huanwu decoction (BHD) is a well-known Chinese herbal prescription. It has been widely used in the clinical treatment of cerebral ischemia (CI) in China. However, the mechanism underlying the treatment of CI with BHD remains to be elucidated. In this study, we combined microbiomic and metabolomic strategies to explore the therapeutic effects of BHD on middle cerebral artery occlusion (MCAO) in rats. Our results showed that BHD could effectively improve neurological severity scores and alleviate neuronal damage in rats with MCAO. BHD could also reduce the level of peripheral proinflammatory cytokines and inhibit neuroinflammation. 16S rRNA sequencing showed that BHD could increase the relative abundances of the genera Lactobacillus, Faecalibacterium, Ruminococcaceae_UCG-002, etc., while decreasing the relative abundances of the genera Escherichia-Shigella, Klebsiella, Streptococcus, Coprococcus_2, Enterococcus, etc. Untargeted metabolomic analysis of hippocampal samples showed that 17 significantly differentially abundant metabolites and 9 enriched metabolic pathways were linked with BHD treatment. We also found that the regulatory effects of BHD on metabolites were correlated with the differentially abundant microbial taxa. The predicted function of the gut microbiota and the metabolic pathway enrichment results showed that purine metabolism, glutamatergic synapses, arginine and proline metabolism, and alanine, aspartic acid and glutamate metabolism were involved in the effects of BHD. These pathways may be related to pathological processes such as excitotoxicity, neuroinflammation, and energy metabolism disorder in CI. In summary, these findings suggest that regulation of hippocampal metabolism and of the composition and function of the gut microbiota may be important mechanisms underlying the effect of BHD in the treatment of CI.
引用
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页数:17
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