Evidence map›Paper›PMID 35430804›Full record

ArticleMicrobiome2022

The microbiota-gut-brain axis participates in chronic cerebral hypoperfusion by disrupting the metabolism of short-chain fatty acids.

Weiping Xiao, Jiabin Su, Xinjie Gao, Heng Yang, Ruiyuan Weng, Wei Ni, Yuxiang Gu

Erratum issuedOpen access · goldAbstract readVideo-Audio Media
In one paragraph

Article in Microbiome, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 132 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
132citing papers in PubMed, 4 pooled it
17.3field-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

132 citing papers in PubMed, 4 syntheses or guidelines pooled it, 223 citations in OpenAlex.

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  11. Intestinal-Bone Axis Mediated byMicroorganisms · 2026
    Review
  12. Fecal microbiota transplantation alleviates sepsis-induced acute lung injury by improving mitochondrial function.The Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology · 2026
    Article
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  15. Neuroglobin: A New Player in the Gut-Brain Axis.International journal of molecular sciences · 2026
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72 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Weiping Xiao *Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, China.
Jiabin Su *Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, China.
Xinjie GaoDepartment of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, China.
Heng YangDepartment of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, China.
Ruiyuan WengDepartment of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, China.
Wei NiDepartment of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, China. hsniwei@fudan.edu.cn.
Yuxiang GuDepartment of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, China. guyuxiang1972@126.com.ORCID http://orcid.org/0000-0002-4580-2205
Fudan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChronic cerebral hypoperfusion (CCH) underlies secondary brain injury following certain metabolic disorders and central nervous system (CNS) diseases. Dysregulation of the microbiota-gut-brain axis can exacerbate various CNS disorders through aberrantly expressed metabolites such as short-chain fatty acids (SCFAs). Yet, its relationship with CCH remains to be demonstrated. And if so, it is of interest to explore whether restoring gut microbiota to maintain SCFA metabolism could protect against CCH.

resultsRats subjected to bilateral common carotid artery occlusion (BCCAO) as a model of CCH exhibited cognitive impairment, depressive-like behaviors, decreased gut motility, and compromised gut barrier functions. The 16S ribosomal RNA gene sequencing revealed an abnormal gut microbiota profile and decreased relative abundance of some representative SCFA producers, with the decreased hippocampal SCFAs as the further evidence. Using fecal microbiota transplantation (FMT), rats recolonized with a balanced gut microbiome acquired a higher level of hippocampal SCFAs, as well as decreased neuroinflammation when exposed to lipopolysaccharide. Healthy FMT promoted gut motility and gut barrier functions, and improved cognitive decline and depressive-like behaviors by inhibiting hippocampal neuronal apoptosis in BCCAO rats. Long-term SCFA supplementation further confirmed its neuroprotective effect in terms of relieving inflammatory response and hippocampal neuronal apoptosis following BCCAO.

conclusionOur results demonstrate that modulating the gut microbiome via FMT can ameliorate BCCAO-induced gut dysbiosis, cognitive decline, and depressive-like behaviors, possibly by enhancing the relative abundance of SCFA-producing floras and subsequently increasing SCFA levels. Video abstract.

Indexed as

Brain-Gut AxisGastrointestinal MicrobiomeAnimalsFatty Acids, VolatileFecal Microbiota TransplantationMiceMice, Inbred C57BLRatsFatty Acids, VolatileChronic cerebral hypoperfusionFecal microbiota transplantationGut dysbiosisGut microbiotaShort-chain fatty acids

Identifiers

PMID35430804
PMCPMC9013454
OpenAlexW4224080430

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.