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KMID : 1225720160080050471
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Allergy, Asthma & Immunology Research : AAIR
2016 Volume.8 No. 5 p.471 ~ p.477
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Dynamics of Gut Microbiota According to the Delivery Mode in Healthy Korean Infants
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Lee Eun
Kim Byoung-Ju
Kang Mi-Jin
Choi Kil-Yong
Cho Hyun-Ju
Kim Yeong-ho
Yang Song-I
Jung Young-Ho
Kim Hyung-Young
Seo Ju-Hee
Kwon Ji-Won
Kim Hyo-Bin
Lee So-Yeon
Hong Soo-Jong
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Abstract
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Microbial colonization of the infant gut is unstable and shows a wide range of diversity between individuals. Gut microbiota play an important role in the development of the immune system, and an imbalance in these organisms can affect health, including an increased risk of allergic diseases. Microbial colonization of young infants is affected by the delivery mode at birth and the consequent alterations of gut microbiota in early life affect the development of allergic diseases. We investigated the effects of the delivery mode on the temporal dynamics of gut microbiota in healthy Korean infants. Fecal samples were collected at 1-3 days, 1 month, and 6 months after birth in six healthy infants. Microbiota were characterized by 16S rRNA shotgun sequencing. At the first and third days of life, infants born by vaginal delivery showed a higher richness and diversity of gut microbiota compared with those born by cesarean section. However, these differences disappeared with age. The Bacteroides genus and Bacteroidetes phylum were abundant in infants born by vaginal delivery, whereas Bacilli and Clostridium g4 were increased in infants born by cesarean section. The Firmicutes phylum and Bacteroides genus showed convergent dynamics with age. This study demonstrated the effect of delivery mode on the dynamics of gut microbiota profiles in healthy Korean infants.
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KEYWORD
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Delivery mode, gut, microbiota
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