First-pass extracted concept

microbiota-gut-brain axis

Candidate: concept label4 source documents13 linked claims
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Aliases

gut-brain axis, microbiome-gut-brain axis, microbiota-gut-brain axis

Extracted Explainers

What the tool is doing

The review frames the microbiota–gut–brain axis as the interaction route through which gut microbiota influence the brain and neurodevelopment.

Source 2DOIPubMed

What problem it solves

It provides the organizing concept used to explain how gut microbial states may affect neurodevelopmental physiology and pathology.

Source 2DOIPubMed

What it does not solve

The abstract does not define a discrete engineered tool, assay, or intervention under this label.

Source 2DOIPubMed

Alternatives

The abstract subdivides this axis into immune, neuronal, and endocrine/systemic pathways rather than presenting an alternative umbrella framework.

Source 2DOIPubMed

Evidence Snippets

Microbiota–gut–brain axis and its therapeutic applications in neurodegenerative diseases
Evidence 1Source 1DOIPubMedprovenance
The gut microbiota has been found to interact with the brain through the microbiota-gut-brain axis, regulating various physiological processes.
Evidence 2Source 2DOIPubMedprovenance
The relationship between the gut microbiota and brain function through bidirectional communication, described as "the microbiome-gut-brain axis", is especially underlined.
Evidence 3Source 3DOIPubMedprovenance
The microbiota and the brain communicate with each other via various routes including the immune system, tryptophan metabolism, the vagus nerve and the enteric nervous system, involving microbial metabolites such as short-chain fatty acids, branched chain amino acids, and peptidoglycans.
Evidence 4Source 4DOIPubMedprovenance

Supporting Sources

Linked Claims

Claim 1review scopesupports2024Source 1DOIPubMed

The review focuses on therapeutic applications of the microbiota–gut–brain axis in neurodegenerative diseases.

Quoted textsource-backed
Microbiota–gut–brain axis and its therapeutic applications in neurodegenerative diseases
Claim 2disease association summarysupports2023Source 2DOIPubMed

The review states that studies have identified a role for the microbiota–gut–brain axis in neurodevelopmental disorders including autism spectrum disorder, attention deficit hyperactivity disorder, and Rett syndrome.

Claim 3mechanistic frameworksupports2023Source 2DOIPubMed

The review states that gut microbiota are commonly considered to regulate neurodevelopment through immune, neuronal, and endocrine/systemic pathways that overlap and crosstalk.

Claim 4review scope summarysupports2023Source 2DOIPubMed

The review states that gut microbiota interact with the brain through the microbiota–gut–brain axis and regulate physiological processes.

Claim 5associationsupports2022Source 3DOIPubMed

The gut microbiota is associated not only with gastroenterological diseases but also with psychiatric disorders.

Claim 6mechanism summarysupports2022Source 3DOIPubMed

Communication between intestinal microbiota and the nervous system involves neurotransmitters, endocrine pathways, immunological mechanisms, and bacterial metabolites.

Claim 7scope summarysupports2022Source 3DOIPubMed

The review covers microbiota alterations and their reported results in the development of major depressive disorder, schizophrenia, bipolar disorder, autism spectrum disorder, and attention-deficit hyperactivity disorder.

Claim 8disease relevance summarysupports2019Source 4DOIPubMed

The review states that recent work has implicated the gut microbiota in autism, anxiety, obesity, schizophrenia, Parkinson's disease, and Alzheimer's disease.

Quoted textsource-backed
Much recent work has implicated the gut microbiota in many conditions including autism, anxiety, obesity, schizophrenia, Parkinson's disease, and Alzheimer's disease.
Claim 9future directionsupports2019Source 4DOIPubMed

The review identifies mechanistic understanding of the microbiota-gut-brain axis and microbial-based intervention and therapeutic strategies for neuropsychiatric disorders as future priorities.

Quoted textsource-backed
Future studies will focus on understanding the mechanisms underlying the microbiota-gut-brain axis and attempt to elucidate microbial-based intervention and therapeutic strategies for neuropsychiatric disorders.
Claim 10life stage influencesupports2019Source 4DOIPubMed

The review states that microbiota composition is shaped by early-life factors including infection, birth delivery mode, antibiotic use, nutrition, environmental stressors, and host genetics, and that microbial diversity diminishes with aging.

Quoted textsource-backed
Many factors can influence microbiota composition in early life, including infection, mode of birth delivery, use of antibiotic medications, the nature of nutritional provision, environmental stressors, and host genetics. At the other extreme of life, microbial diversity diminishes with aging.
Claim 11mechanistic summarysupports2019Source 4DOIPubMed

The review describes the microbiota-gut-brain axis as a bidirectional communication system in which microbiota influence gut-brain function through immune, metabolic, vagal, and enteric nervous system routes.

Quoted textsource-backed
The microbiota and the brain communicate with each other via various routes including the immune system, tryptophan metabolism, the vagus nerve and the enteric nervous system, involving microbial metabolites such as short-chain fatty acids, branched chain amino acids, and peptidoglycans.
Claim 12preclinical to translational summarysupports2019Source 4DOIPubMed

The review states that animal models have been important for linking microbiome activation of microglia to neural processes such as neurogenesis and myelination, while translational human studies are ongoing.

Quoted textsource-backed
Animal models have been paramount in linking the regulation of fundamental neural processes, such as neurogenesis and myelination, to microbiome activation of microglia. Moreover, translational human studies are ongoing and will greatly enhance the field.
Claim 13stress interactionsupports2019Source 4DOIPubMed

The review states that stress can significantly impact the microbiota-gut-brain axis across the lifespan.

Quoted textsource-backed
Stress, in particular, can significantly impact the microbiota-gut-brain axis at all stages of life.