Evidence map›Paper›PMID 35379265›Full record

ArticleJournal of neuroinflammation2022

Gut microbiota is causally associated with poststroke cognitive impairment through lipopolysaccharide and butyrate.

Huidi Wang, Mingsi Zhang, Jie Li, Jianhai Liang, Mengjia Yang, Genghong Xia, Yueran Ren, Hongwei Zhou, Qiheng Wu, Yan He and 1 more

Open access · goldAbstract read
In one paragraph

Article in Journal of neuroinflammation, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 91 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
91citing papers in PubMed, 4 pooled it
8.9field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

91 citing papers in PubMed, 4 syntheses or guidelines pooled it, 114 citations in OpenAlex.

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  19. Targeting the intestinal TLR4-GABAJournal of neuroinflammation · 2026
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31 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 3 institutions in 1 country.

Huidi Wang *Department of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
Mingsi Zhang *Department of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
Jie Li *Microbiome Medicine Center, Department of Laboratory Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
Jianhai LiangDepartment of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
Mengjia YangDepartment of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
Genghong XiaDepartment of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
Yueran RenDepartment of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
Hongwei ZhouMicrobiome Medicine Center, Department of Laboratory Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
Qiheng WuDepartment of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China. cris0087@qq.com.
Yan HeMicrobiome Medicine Center, Department of Laboratory Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China. bioyanhe@gmail.com.
Jia YinDepartment of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China. yinj@smu.edu.cn.
Nanfang Hospital · CNSouthern Medical University · CNZhujiang Hospital · CN

Funding

National Natural Science Foundation of China NSFC81870936
6 · The paper itself

Abstract

backgroundPoststroke cognitive impairment (PSCI) is prevalent in stroke patients. The etiology of PSCI remains largely unknown. We previously found that stroke induces gut microbiota dysbiosis which affects brain injury. Hereby, we aimed to investigate whether the gut microbiota contributes to the pathogenesis of PSCI.

methods83 stroke patients were recruited and their cognitive function were measured by Montreal Cognitive Assessment (MoCA) scores 3 months after stroke onset. The peripheral inflammatory factor levels and gut microbiota compositions of the patients were analyzed. Fecal microbiota transplantation from patients to stroke mice was performed to examine the causal relationship between the gut microbiota and PSCI. The cognitive function of mice was evaluated by Morris water maze test.

results34 and 49 stroke patients were classified as PSCI and non-PSCI, respectively. Compared with non-PSCI patients, PSCI patients showed significantly higher levels of gut Enterobacteriaceae, lipopolysaccharide (LPS) and peripheral inflammation markers. Consistently, stroke mice that received microbiota from PSCI patients (PSCI mice) presented a higher level of Enterobacteriaceae, intestinal Toll-like receptor-4 (TLR4) expression, circulating LPS, LPS-binding protein (LBP) and inflammatory cytokines, and a lower level of fecal butyrate, severer intestine destruction and cognitive impairment than mice that received microbiota from nPSCI patients (nPSCI mice). In addition, we observed exacerbations in blood-brain barrier (BBB) integrity, microglial activation, neuronal apoptosis in the CA1 region of the hippocampus, and Aβ deposition in the thalamus of PSCI mice in comparison with nPSCI mice. Intraperitoneal injection of LPS after stroke caused similar pathology to those seen in PSCI mice. Supplementation with sodium butyrate (NaB) via drinking water rescued these detrimental changes in PSCI mice.

conclusionsOur data indicate a cause-effect relationship between gut microbiota and PSCI for the first time, which is likely mediated by inflammation-regulating metabolites including LPS and butyrate.

Indexed as

Cognitive DysfunctionGastrointestinal MicrobiomeAnimalsButyratesDysbiosisHumansLipopolysaccharidesMiceButyratesLipopolysaccharidesFecal microbiota transplantationHippocampal apoptosisLipopolysaccharidePost-stroke cognitive impairmentβ-Amyloid

Identifiers

PMID35379265
PMCPMC8981610
OpenAlexW4226140551

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.