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Abstract Title:

The Association of Post-Stroke Cognitive Impairment and Gut Microbiota and its Corresponding Metabolites.

Abstract Source:

J Alzheimers Dis. 2020 ;73(4):1455-1466. PMID: 31929168

Abstract Author(s):

Yongqiang Liu, Cheng Kong, Li Gong, Xiaohui Zhang, Yuefei Zhu, Haichao Wang, Xiao Qu, Renyuan Gao, Fang Yin, Xueyuan Liu, Huanlong Qin

Article Affiliation:

Yongqiang Liu

Abstract:

BACKGROUND: Post-stroke cognitive impairment (PSCI) is an important factor causing disabilities after acute ischemic stroke (AIS). Emerging evidence suggested that gut microbiota play an important role in cognitive impairment.

OBJECTIVE: This study aimed to explore the association between PSCI and gut microbiota.

METHOD: 65 patients with newly diagnostic AIS finished the fecal collection on admission and cognitive assessment 3 months later in the clinic. Fecal samples were subjected to 16SrRNA gene sequencing and gas chromatography-mass spectrometry analysis. Additionally, we enrolled new 18 AIS patients, whose treatment was supplemented by probiotics, to assess the potential of microbial treatment in PSCI.

RESULTS: PSCI patients were characterized by the significantly decreased alpha-diversity, disturbed microbial composition, and corresponding metabolites compared with non-PSCI patients. Increased Fusobacterium and deficiency of microbial metabolized short-chain fatty acids (SCFAs) were significantly associated with PSCI. A model based on gut microbiota and SCFAs could predict 3 months or longer PSCI early and accurately after stroke onset. While traditional probiotic administration had little effect on PSCI, it could ameliorate patients' mood, including depression and anxiety in the 3 months after stroke.

CONCLUSION: Our study revealed the association between PSCI and gut microbiota and its corresponding metabolites for the first time, suggesting the potential for applying microbiota and its corresponding metabolites to early clinical diagnosis and treatment of PSCI.

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