Alterations in the intestinal microbiota of preterm infants with neurodevelopmental impairments: a prospective cohort study

LI Yan; LU Si-Liang; MO Yan; JING Lian-Fang; YAO Li-Ping; TAN Wei; WEI Qiu-Fen

doi:10.7499/j.issn.1008-8830.2302130

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Chinese Journal of Contemporary Pediatrics ›› 2023, Vol. 25 ›› Issue (7) : 689-696. DOI: 10.7499/j.issn.1008-8830.2302130

CLINICAL RESEARCH

Alterations in the intestinal microbiota of preterm infants with neurodevelopmental impairments: a prospective cohort study

LI Yan, LU Si-Liang, MO Yan, JING Lian-Fang, YAO Li-Ping, TAN Wei, WEI Qiu-Fen

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Abstract

Objective To investigate the difference in intestinal microbiota between preterm infants with neurodevelopmental impairment (NDI) and those without NDI. Methods In this prospective cohort study, the preterm infants who were admitted to the neonatal intensive care unit of Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region from September 1, 2019 to September 30, 2021 were enrolled as subjects. According to the assessment results of Gesell Developmental Scale at the corrected gestational age of 1.5-2 years, they were divided into two groups: normal (n=115) and NDI (n=100). Fecal samples were collected one day before discharge, one day before introducing solid food, and at the corrected gestational age of 1 year. High-throughput sequencing was used to compare the composition of intestinal microbiota between groups. Results Compared with the normal group, the NDI group had a significantly higher Shannon diversity index at the corrected gestational age of 1 year (P<0.05). The principal coordinate analysis showed a significant difference in the composition of intestinal microbiota between the two groups one day before introducing solid food and at the corrected gestational age of 1 year (P<0.05). Compared with the normal group, the NDI group had a significantly higher abundance of Bifidobacterium in the intestine at all three time points, a significantly higher abundance of Enterococcus one day before introducing solid food and at the corrected gestational age of 1 year, and a significantly lower abundance of Akkermansia one day before introducing solid food (P<0.05). Conclusions There are significant differences in the composition of intestinal microbiota between preterm infants with NDI and those without NDI. This study enriches the data on the characteristics of intestinal microbiota in preterm infants with NDI and provides reference for the microbiota therapy and intervention for NDI in preterm infants.

Key words

Neurodevelopmental impairment / Intestinal microbiota / High-throughput sequencing / Preterm infant

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LI Yan, LU Si-Liang, MO Yan, JING Lian-Fang, YAO Li-Ping, TAN Wei, WEI Qiu-Fen. Alterations in the intestinal microbiota of preterm infants with neurodevelopmental impairments: a prospective cohort study[J]. Chinese Journal of Contemporary Pediatrics. 2023, 25(7): 689-696 https://doi.org/10.7499/j.issn.1008-8830.2302130

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