Gut Microbiota in Ischemic Stroke: Role of Gut Bacteria-Derived Metabolites

被引:32
作者
Zhang, Wei [1 ]
Dong, Xiao Yu [1 ]
Huang, Rui [1 ]
机构
[1] China Med Univ, Dept Neurol, Shengjing Hosp, Shenyang, Peoples R China
关键词
Ischemic stroke; Trimethylamine N-oxide; Short-chain fatty acids; Bile acids; Lipopolysaccharides; Phenylacetylglutamine; CHAIN FATTY-ACIDS; PITUITARY-ADRENAL AXIS; BLOOD-BRAIN-BARRIER; BILE-ACID; INTESTINAL MICROBIOTA; NEUROTROPHIC FACTOR; NEUROINFLAMMATION MODEL; CARDIOVASCULAR-DISEASE; COMMENSAL BACTERIA; NERVOUS-SYSTEM;
D O I
10.1007/s12975-022-01096-3
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
Ischemic stroke (IS) remains a leading cause of death and long-term disability globally. Several mechanisms including glutamate excitotoxicity, calcium overload, neuroinflammation, oxidative stress, mitochondrial damage, and apoptosis are known to be involved in the pathogenesis of IS, but the underlying pathophysiology mechanisms of IS are not fully clarified. During the past decade, gut microbiota were recognized as a key regulator to affect the health of the host either directly or via their metabolites. Recent studies indicate that gut bacterial dysbiosis is closely related to hypertension, diabetes, obesity, dyslipidemia, and metabolic syndrome, which are the main risk factors for cardiovascular diseases. Increasing evidence indicates that IS can lead to perturbation in gut microbiota and increased permeability of the gut mucosa, known as "leaky gut," resulting in endotoxemia and bacterial translocation. In turn, gut dysbiosis and impaired intestinal permeability can alter gut bacterial metabolite signaling profile from the gut to the brain. Microbiota-derived products and metabolites, such as short-chain fatty acids (SCFAs), bile acids (BAs), trimethylamine N-oxide ( TMAO), lipopolysaccharides (LPS), and phenylacetylglutamine (PAGln) can exert beneficial or detrimental effects on various extraintestinal organs, including the brain, liver, and heart. These metabolites have been increasingly acknowledged as biomarkers and mediators of IS. However, the specific role of the gut bacterial metabolites in the context of stroke remains incompletely understood. In-depth studies on these products and metabolites may provide new insight for the development of novel therapeutics for IS.
引用
收藏
页码:811 / 828
页数:18
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