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The impact of microbiota on brain and behavior: mechanisms & therapeutic potential.

Authors
  • Borre, Yuliya E
  • Moloney, Rachel D
  • Clarke, Gerard
  • Dinan, Timothy G
  • Cryan, John F
Type
Published Article
Journal
Advances in experimental medicine and biology
Publication Date
Jan 01, 2014
Volume
817
Pages
373–403
Identifiers
DOI: 10.1007/978-1-4939-0897-4_17
PMID: 24997043
Source
Medline
License
Unknown

Abstract

There is increasing evidence that host-microbe interactions play a key role in maintaining homeostasis. Alterations in gut microbial composition is associated with marked changes in behaviors relevant to mood, pain and cognition, establishing the critical importance of the bi-directional pathway of communication between the microbiota and the brain in health and disease. Dysfunction of the microbiome-brain-gut axis has been implicated in stress-related disorders such as depression, anxiety and irritable bowel syndrome and neurodevelopmental disorders such as autism. Bacterial colonization of the gut is central to postnatal development and maturation of key systems that have the capacity to influence central nervous system (CNS) programming and signaling, including the immune and endocrine systems. Moreover, there is now expanding evidence for the view that enteric microbiota plays a role in early programming and later response to acute and chronic stress. This view is supported by studies in germ-free mice and in animals exposed to pathogenic bacterial infections, probiotic agents or antibiotics. Although communication between gut microbiota and the CNS are not fully elucidated, neural, hormonal, immune and metabolic pathways have been suggested. Thus, the concept of a microbiome-brain-gut axis is emerging, suggesting microbiota-modulating strategies may be a tractable therapeutic approach for developing novel treatments for CNS disorders.

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