Gut Microbiota in Health and Diseases: The Role of Pro-/Pre-/Syn-/Post-Biotics in the Gut–Liver–Brain Axis

A special issue of Microorganisms (ISSN 2076-2607). This special issue belongs to the section "Gut Microbiota".

Deadline for manuscript submissions: 30 April 2025 | Viewed by 953

Special Issue Editors


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Guest Editor
Clinica Medica “A. Murri”, Department of Precision and Regenerative Medicine and Ionian Area (DiMePre-J), University of Bari “Aldo Moro”, 70124 Bari, Italy
Interests: gut microbiota; metabolic disturbances

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Co-Guest Editor
Clinca Medica A. Murri, Department of precision Medicine, Regernative, and Lonic area, University of Bari, Bari, Italy
Interests: internal medicine; lipidology; gastrointestinal motility, digestion; breath tests; liver steatosis; autoinflammatory disorders; gallstone disease; abdominal ultrasonography; metabolic syndrome

Special Issue Information

Dear Colleagues,

Introduction: The gut microbiome is a diverse array of microorganisms residing in the gastrointestinal tract, forming a complex ecosystem vital for human health. It significantly influences numerous physiological processes, including digestion, metabolism, immune function, and mental health. Notably, the gut–liver–brain axis illustrates the interconnectedness of gut microbiota, metabolic processes, and mental health.

The gut–brain axis and gut metabolic axis are intricately interconnected pathways that illustrate the complex relationship between gut health, brain function, and metabolic processes. The gut–brain axis involves bidirectional communication between the gastrointestinal tract and the central nervous system, which influences mental health. Conversely, the gut–metabolic axis focuses on how gut health impacts metabolic functions, including nutrient absorption and the production of metabolites that regulate metabolism and energy balance. These two axes are linked through various mechanisms, including the influence of gut-derived neurotransmitters on metabolic processes, the impact of stress on gut microbiota composition, and the role of chronic inflammation from gut dysbiosis in affecting both brain function and metabolic health. Understanding these connections underscores the importance of gut health in promoting overall well-being, suggesting that interventions targeting the gut may benefit both mental and metabolic health.

This Special Issue seeks to enhance our understanding of gut–microbiota–brain interaction, essential for creating effective, holistic strategies for prevention and treatment. Investigating how changes in gut microbiota can influence mental and metabolic health outcomes may lead to innovative therapeutic approaches, such as personalized probiotics or dietary adjustments aimed at fostering these issues.

We invite manuscripts that present original research, reviews, and perspectives on all aspects of gut microbiota linked with mental and metabolic health, as well as regarding biotics such as pro-/pre-/syn-/post-biotics in gut–liver–brain axis disorders. Topics of interest include, but are not limited to, the following:

  • The impact of gut-derived metabolites on liver function and overall metabolism.
  • Probiotic modulation of the gut microbiome as a strategy for mitigating and preventing mental health disorders, as supported by clinical studies.
  • The gut–liver–brain axis focuses on how changes in microbiota can alter specific pathways related to gut metabolite production and mental illness.

Dr. Mohamad Khalil
Prof. Dr. Piero Portincasa
Guest Editors

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Keywords

  • gut microbiome
  • gut–liver–brain axis
  • gastrointestinal tract
  • digestion
  • metabolism
  • immune function

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Published Papers (1 paper)

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Review

41 pages, 2830 KiB  
Review
Unraveling the Role of the Human Gut Microbiome in Health and Diseases
by Mohamad Khalil, Agostino Di Ciaula, Laura Mahdi, Nour Jaber, Domenica Maria Di Palo, Annarita Graziani, Gyorgy Baffy and Piero Portincasa
Microorganisms 2024, 12(11), 2333; https://doi.org/10.3390/microorganisms12112333 - 15 Nov 2024
Viewed by 865
Abstract
The human gut is a complex ecosystem that supports billions of living species, including bacteria, viruses, archaea, phages, fungi, and unicellular eukaryotes. Bacteria give genes and enzymes for microbial and host-produced compounds, establishing a symbiotic link between the external environment and the host [...] Read more.
The human gut is a complex ecosystem that supports billions of living species, including bacteria, viruses, archaea, phages, fungi, and unicellular eukaryotes. Bacteria give genes and enzymes for microbial and host-produced compounds, establishing a symbiotic link between the external environment and the host at both the gut and systemic levels. The gut microbiome, which is primarily made up of commensal bacteria, is critical for maintaining the healthy host’s immune system, aiding digestion, synthesizing essential nutrients, and protecting against pathogenic bacteria, as well as influencing endocrine, neural, humoral, and immunological functions and metabolic pathways. Qualitative, quantitative, and/or topographic shifts can alter the gut microbiome, resulting in dysbiosis and microbial dysfunction, which can contribute to a variety of noncommunicable illnesses, including hypertension, cardiovascular disease, obesity, diabetes, inflammatory bowel disease, cancer, and irritable bowel syndrome. While most evidence to date is observational and does not establish direct causation, ongoing clinical trials and advanced genomic techniques are steadily enhancing our understanding of these intricate interactions. This review will explore key aspects of the relationship between gut microbiota, eubiosis, and dysbiosis in human health and disease, highlighting emerging strategies for microbiome engineering as potential therapeutic approaches for various conditions. Full article
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