**Author details**

Lisa Pau Le Low

Address all correspondence to: lisalow@cihe.edu.hk

School of Health Sciences, Caritas Institute of Higher Education, Tseung Kwan O, N.T., Hong Kong

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**Conflict of interest**

No conflicts of interest.

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Lisa Pau Le Low

Hong Kong

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**Chapter 12**

**Provisional chapter**

**Role of Nutraceuticals in Modulation of Gut-Brain Axis**

A rather new and somewhat unusual concept connects brain functions to gut microbiota. It is called "gut-brain axis" (or "microbiota-gut-brain axis") and states that probiotics consumption and a healthy gut microbiota positively influence brain functions related to behavior and cognition. Synergistic with a low chronic grade peripheral inflammation, this faulty barrier exposes the aged brain to negative extra-cerebral signals. Given the quasi-constant failure of pharmacological treatments in neurodegenerative diseases, increased interest is directed toward allopathic medicine, including dietary supplements. Interplay between gut microbiota and central nervous system by immune, neural and metabolic pathways is being explored as a possible modulator of cognitive impairment and behavior disorders. In elderly persons, this axis has been reported to be altered, contributing to systemic inflammation and was also indicated as a possible marker for early frailty in younger population. Currently, there are several clinical trials addressing the relationship between gut microbiota and central nervous system psychiatric disorders and at least one directly investigating whether there is a correlation between composition of gut microbiome, permeability of intestinal barrier and systemic inflammation in patients with dementia. This chapter discusses evidence-based data on positive modulation of gut-brain axis to alleviate behavior and cognition alterations in the elderly.

**Role of Nutraceuticals in Modulation of Gut-Brain Axis** 

DOI: 10.5772/intechopen.73005

© 2016 The Author(s). Licensee InTech. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution,

© 2018 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use,

distribution, and reproduction in any medium, provided the original work is properly cited.

and reproduction in any medium, provided the original work is properly cited.

**Keywords:** nutraceuticals, gut-brain axis, microbiota, inflammaging, aging,

**in Elderly Persons**

**in Elderly Persons**

Cristiana Pistol Tanase

**Abstract**

Cristiana Pistol Tanase

Ana-Maria Enciu, Elena Codrici, Simona Mihai, Emilia Manole, Sevinci Pop, Eleonora Codorean,

Ana-Maria Enciu, Elena Codrici, Simona Mihai, Emilia Manole, Sevinci Pop, Eleonora Codorean,

Cristina Mariana Niculite, Laura Necula, Isabela Tarcomnicu, Elvira Gille and

Cristina Mariana Niculite, Laura Necula, Isabela Tarcomnicu, Elvira Gille and

Additional information is available at the end of the chapter

Additional information is available at the end of the chapter

http://dx.doi.org/10.5772/intechopen.73005

neurodegeneration, anxiolytic

**Provisional chapter**
