The Microbiota-Gut-Brain Axis in Neuropsychiatric Disorders: Pathophysiological Mechanisms and Novel Treatments

Sep 20, 2017Current neuropharmacology

How Gut Bacteria and the Brain Interact in Mental Health Disorders: Causes and New Treatments

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Abstract

Recent studies indicate that variations in the microbiome are associated with diverse neuropsychiatric disorders.

Neuropsychiatric disorders such as autism, depression, anxiety, and schizophrenia may be influenced by the gut microbiome.
Microbial substrates, as well as exogenous prebiotics, antibiotics, and probiotics, could modulate these disorders.
The microbiota-gut-brain axis is proposed as a potential target for the prevention and treatment of neuropsychiatric disorders.
Further studies are needed to confirm the clinical efficacy of probiotics, prebiotics, and fecal microbiota transplantation (FMT).

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BACKGROUND: The human gut microbiome comprise a huge number of microorganisms with co-evolutionary associations with humans. It has been repeatedly revealed that bidirectional communication exists between the brain and the gut and involves neural, hormonal, and immunological pathways. Evidences from neuroscience researches over the past few years suggest that microbiota is essential for the development and maturation of brain systems that are associated to stress responses.

METHOD: This review provides that the summarization of the communication among microbiota, gut and brain and the results of preclinical and clinical studies on gut microbiota used in treatments for neuropsychiatric disorders.

RESULT: Recent studies have reported that diverse forms of neuropsychiatric disorders (such as autism, depression, anxiety, and schizophrenia) are associated with or modulated by variations in the microbiome, by microbial substrates, and by exogenous prebiotics, antibiotics, and probiotics.

CONCLUSION: The microbiota-gut-brain axis might provide novel targets for prevention and treatment of neuropsychiatric disorders. However, further studies are required to substantiate the clinical use of probiotics, prebiotics and FMT.

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The Microbiota-Gut-Brain Axis in Neuropsychiatric Disorders: Pathophysiological Mechanisms and Novel Treatments

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