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Healthcare 2015, 3(4), 898-916; doi:10.3390/healthcare3040898

Gut Microbiota: A Modulator of Brain Plasticity and Cognitive Function in Ageing

Institute of Psychiatry, King’s College London, The James Black Centre, 125 Coldharbour Lane, London SE5 9NU, UK
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Author to whom correspondence should be addressed.
Academic Editor: Sampath Parthasarathy
Received: 27 May 2015 / Revised: 15 September 2015 / Accepted: 24 September 2015 / Published: 29 September 2015
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Abstract

Gut microbiota have recently been a topic of great interest in the field of microbiology, particularly their role in normal physiology and its influence on human health in disease. A large body of research has supported the presence of a pathway of communication between the gut and the brain, modulated by gut microbiota, giving rise to the term “microbiota-gut-brain” axis. It is now thought that, through this pathway, microbiota can affect behaviour and modulate brain plasticity and cognitive function in ageing. This review summarizes the evidence supporting the existence of such a connection and possible mechanisms of action whereby microbiota can influence the function of the central nervous system. Since normalisation of gut flora has been shown to prevent changes in behaviour, we further postulate on possible therapeutic targets to intervene with cognitive decline in ageing. The research poses various limitations, for example uncertainty about how this data translates to broad human populations. Nonetheless, the microbiota-gut-brain axis is an exciting field worthy of further investigation, particularly with regards to its implications on the ageing population. View Full-Text
Keywords: gut microbiota; inflammation; gut-brain axis; cognitive function; ageing; probiotics; adult hippocampal neurogenesis; fatty acids gut microbiota; inflammation; gut-brain axis; cognitive function; ageing; probiotics; adult hippocampal neurogenesis; fatty acids
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Leung, K.; Thuret, S. Gut Microbiota: A Modulator of Brain Plasticity and Cognitive Function in Ageing. Healthcare 2015, 3, 898-916.

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