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Intestinal Microbiome and Its Function

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Microbiology".

Deadline for manuscript submissions: 20 September 2025 | Viewed by 619

Special Issue Editor


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Guest Editor
Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy
Interests: gut microbiota; colitis

Special Issue Information

Dear Colleagues,

The human microbiome encompasses a vast community of trillions of microorganisms, including bacteria, viruses, and fungi, that inhabit different regions of the body such as the gut, skin, mouth, and genitals. Of these, the gut microbiome is the most extensively studied due to its profound influence on overall health. An imbalance in these microbial communities, known as dysbiosis, has been linked to numerous health conditions, including obesity, diabetes, inflammatory bowel disease, allergies, and neurological disorders. Key metabolites derived from the gut microbiota, such as short-chain fatty acids (SCFAs), bile acids, tryptophan-derived compounds, and trimethylamine N-oxide (TMAO), play crucial roles in regulating metabolism, immune function, and even mental health. The microbiota–gut–organ axis refers to the complex communication network between the gut microbiota and various organs, illustrating how gut microbes’ impact not only the gastrointestinal system but also critical organs such as the brain, liver, lungs, heart, and immune system.

Based on these premises, the aims of this Special Issue are to underscore the pivotal role of the human microbiota in maintaining physiological balance, explore how disruptions in microbial networks contribute to the development of various diseases, and examine strategies for restoring a healthy microbiome through targeted interventions.

Dr. Simone Baldi
Guest Editor

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Keywords

  • human microbiome
  • gut microbiome
  • microbiota-derived metabolites
  • SCFAs
  • gut–organ axis

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Published Papers (1 paper)

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Research

19 pages, 4304 KiB  
Article
Scutellarin Alleviates CCl4-Induced Liver Fibrosis by Regulating Intestinal Flora and PI3K/AKT Signaling Axis
by Xin Li, Wanqi Yang, Ying Weng, Yingying Zhao, Haidong Chen, Yang Chen, Jishuang Qiu, Bei Jiang, Chunyan Li and Yong Lai
Int. J. Mol. Sci. 2025, 26(7), 2997; https://doi.org/10.3390/ijms26072997 - 25 Mar 2025
Viewed by 360
Abstract
Liver fibrosis is a pathological manifestation of chronic liver disease developing to the terminal stage, and there is a lack of effective therapeutic drugs in clinical practice. Scutellarin (SCU) is a flavonoid extracted from Erigeron breviscapus (Vaniot.) Hand.-Mazz., which has significant anti-liver-fibrosis [...] Read more.
Liver fibrosis is a pathological manifestation of chronic liver disease developing to the terminal stage, and there is a lack of effective therapeutic drugs in clinical practice. Scutellarin (SCU) is a flavonoid extracted from Erigeron breviscapus (Vaniot.) Hand.-Mazz., which has significant anti-liver-fibrosis efficacy, but its mode of action remains incompletely understood. A liver fibrosis model was built with male Sprague Dawley rats induced with the disease by CCl4 to evaluate the therapeutic effect of drugs. 16S rRNA sequencing and metabolomics were used to analyze the regulatory effects of SCU on intestinal flora and host metabolism; antibiotics were administered to eliminate gut microbiota and fecal microbiota transplantation (FMT) experiments were used to verify the mechanism. The mechanistic basis underlying SCU’s hepatic anti-fibrotic effects was screened by network pharmacology combined with transcriptomics, combined with molecular docking, qPCR, and WB verification. The results showed that SCU may play an anti-liver-fibrosis role by correcting the imbalance of gut flora and regulating the linoleic acid and purine metabolic pathways. In addition, SCU can downregulate the levels of proteins and genes related to the PI3K/AKT axis. In summary, SCU alleviates liver fibrosis by reversing intestinal flora imbalance, regulating the metabolic profile, and inhibiting the PI3K/AKT axis. Full article
(This article belongs to the Special Issue Intestinal Microbiome and Its Function)
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