Epigenetics, exposome and development of the intestinal microbiota in the neonate

Paola Sánchez Benitez 1 and Rocío Pérez y Terrón 2, *

1 Faculty of Chemical Sciences Autonomous University of Puebla. Av. San Claudio and 18 Sur, Building 105-H, City University C. P. 72570 Puebla, Mexico.
2 Microbiology and Molecular Biology Laboratory, Biological Sciences Faculty, Autonomous University of Puebla, Building 112-A, City University C. P. 72570 Puebla, Mexico.
 
Research Article
GSC Biological and Pharmaceutical Sciences, 2020, 13(02), 199-210.
Article DOI: 10.30574/gscbps.2020.13.2.0367
Publication history: 
Received on 10 November 2020; revised on 18 November 2020; accepted on 20 November 2020
 
Abstract: 
The intestinal microbiota is currently known as a "metabolic organ" that significantly influences the health of the host from the first years of life, being a crucial factor for optimal development of immunity and regulation of different physiological processes such as digestion, absorption, metabolism and synthesis of nutrients. This work aims to show the relationship between epigenetics, the exposome and the development of the intestinal microbiota in the newborn according to the route of birth. A documentary review of the literature of the last 5 years was carried out and it was found that the majority of non-communicable diseases are due to epigenetic modifications that can occur in the prenatal stages, together with environmental factors that also contribute to these epigenetic changes, term known as an exposome. In this sense, the greatest exposure of microorganisms for the development of intestinal colonization is at the time of birth, being Bifidobacterium one of the most important genera that contribute to immune function, found to a lesser extent in newborns born by abdominal route (cesarean section ), this type has been associated with dysbiosis of the intestinal microbiota, generating consequences in the development of diseases such as obesity, diabetes, asthma, food allergy and autism spectrum disorder. Allowing to conclude that both epigenetics and the exposome and the intestinal microbiota are simultaneously related from the early stages of life and can be the cause of various non-communicable diseases.
 
Keywords: 
Epigenetics; Exposome; Microbiota; Neonate
 
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