Evidence mapPaperPMID 41774153Full record

ArticleCurrent microbiology2026

Restoring Firmicutes-Associated Metabolites: A Gut-Brain Axis Approach to Alleviate Neuroinflammation and Oxidative Stress in Intracerebral Hemorrhage.

Yiteng Liu, Biying Zhang, Huaxian Li, Yue Si, Mangmang Qiu, Hao Xu, Cunfang Qi

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Article in Current microbiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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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.

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Yiteng Liu *School of Basic Medical Sciences, Xi'an Medical University, Xi'an, 710021, China.
Biying Zhang *Department of Aerospace Hygiene, Department of Aerospace Medicine, the Fourth Military Medical University, Xi'an, 710032, China.
Huaxian LiDepartment of Aerospace Hygiene, Department of Aerospace Medicine, the Fourth Military Medical University, Xi'an, 710032, China.
Yue SiDepartment of Aerospace Hygiene, Department of Aerospace Medicine, the Fourth Military Medical University, Xi'an, 710032, China.
Mangmang QiuSchool of Basic Medical Sciences, Xi'an Medical University, Xi'an, 710021, China.
Hao XuSchool of Basic Medical Sciences, Xi'an Medical University, Xi'an, 710021, China. xuhao@xiyi.edu.cn.
Cunfang QiSchool of Basic Medical Sciences, Xi'an Medical University, Xi'an, 710021, China. qicunfang@xiyi.edu.cn.

Funding

the General Program of the Natural Science Basic Research Plan in Shaanxi Province 2020JM-608the Natural Science Basic Research Program of Shaanxi Province 2020JZ-56the Program for Science and Technology Innovation Team in Xi'an Medical University 2021TD05the Science and Technology and Information Bureau, Weiyang district, Xi'an, Shaanxi 202223the Scientific Research Program Funded by Education Department of Shaanxi Provincial Government 23JK0641the Scientific Research Project of Xi'an Medical University 2021QN14
6 · The paper itself

Abstract

Intracerebral hemorrhage (ICH), a lethal stroke subtype, lacks therapies targeting gut-brain axis dysregulation. While gut microbiota influences ischemic stroke outcomes, how ICH perturbs microbial-metabolite interactions via the microbiota-gut-brain axis (MGBA) remains unknown. We combined a collagenase-induced ICH mouse model with multi-omics (16S rRNA sequencing, metabolomics) and functional assays (BV2 microglia) to investigate gut dysbiosis and metabolite alterations. Intestinal barrier integrity, neuroinflammation, and oxidative stress were assessed. At the phylum level, the control (CON) group exhibited a microbiome dominated by Firmicutes, Actinobacteriota, and Campylobacterota. In stark contrast, the ICH group displayed a pathological shift toward Bacteroidota, Cyanobacteria, and Proteobacteria. These dysbiotic alterations corresponded to intestinal barrier compromise marked by reduced expression of zonula occludens-1 (ZO-1), occludin, and mucin 2 (MUC2), systemic elevation of pro-inflammatory cytokines including interleukin-1β (Il-1β) and tumor necrosis factor-α (Tnf-α), and depletion of neuroprotective metabolites–specifically oleoyl ethanolamide, linoleoyl ethanolamide, and L-valine–whose levels positively correlated with Firmicutes abundance. Mechanistically, in vitro experiments demonstrated that these metabolites collectively suppressed neuroinflammation and neuronal apoptosis, with l-valine exhibiting unique antioxidant activity through Reactive oxygen species scavenging. Molecular docking studies have shown that linoleoyl ethanolamide (LEA) and oleoylethanolamide (OEA) can inhibit the levels of inflammatory cytokines interleukin-6 (Il-6) and tumor necrosis Tnf-α by binding to key sites. Our findings underscore the critical role of gut microbiota-metabolite crosstalk in ICH pathogenesis and identify microbial metabolites as potential therapeutic targets for preserving gut-brain axis homeostasis.

Indexed as

BacillotaBrainBrain-Gut AxisCerebral HemorrhageGastrointestinal MicrobiomeNeuroinflammatory DiseasesOxidative StressAnimalsDisease Models, AnimalDysbiosisIntestinal Barrier FunctionMaleMiceMice, Inbred C57BLRNA, Ribosomal, 16SRNA, Ribosomal, 16S

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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 Socratic graph.