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Gut Microbiota and Their Neuroinflammatory Implications in Alzheimer’s Disease

1
Department of Bionano Technology, Gachon Bionano Research Institute, Gachon University, 1342 Sungnam-daero, Seongnam-si, Gyeonggi-do 461-701, Korea
2
Department of Neurology, Seoul National University College of Medicine & Neurocognitive Behavior Center, Seoul National University Bundang Hospital, Seoul 100-011, Korea
*
Authors to whom correspondence should be addressed.
Both authors contributed equally to this work.
Nutrients 2018, 10(11), 1765; https://doi.org/10.3390/nu10111765
Received: 22 October 2018 / Revised: 8 November 2018 / Accepted: 10 November 2018 / Published: 14 November 2018
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PDF [2286 KB, uploaded 21 November 2018]
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Abstract

The bidirectional communication between the central nervous system (CNS) and the gut microbiota plays a pivotal role in human health. Increasing numbers of studies suggest that the gut microbiota can influence the brain and behavior of patients. Various metabolites secreted by the gut microbiota can affect the cognitive ability of patients diagnosed with neurodegenerative diseases. Nearly one in every ten Korean senior citizens suffers from Alzheimer’s disease (AD), the most common form of dementia. This review highlights the impact of metabolites from the gut microbiota on communication pathways between the brain and gut, as well as the neuroinflammatory roles they may have in AD patients. The objectives of this review are as follows: (1) to examine the role of the intestinal microbiota in homeostatic communication between the gut microbiota and the brain, termed the microbiota–gut–brain (MGB) axis; (2) to determine the underlying mechanisms of signal dysfunction; and (3) to assess the impact of signal dysfunction induced by the microbiota on AD. This review will aid in understanding the microbiota of elderly people and the neuroinflammatory roles they may have in AD. View Full-Text
Keywords: gut microbiota; MGB axis; germ-free animal; probiotic; neurodegenerative diseases; Alzheimer’s disease gut microbiota; MGB axis; germ-free animal; probiotic; neurodegenerative diseases; Alzheimer’s disease
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Giau, V.V.; Wu, S.Y.; Jamerlan, A.; An, S.S.A.; Kim, S.; Hulme, J. Gut Microbiota and Their Neuroinflammatory Implications in Alzheimer’s Disease. Nutrients 2018, 10, 1765.

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