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Author Spotlight: Enhancing Understanding and Treatment Strategies with the NEC-on-a-Chip Model
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Mucosa-associated bacterial diversity in necrotizing enterocolitis
Rachel Brower-Sinning1, Diana Zhong2, Misty Good3
1Division of Pediatric Surgery, Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania, United States of America; Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States of America.
Plos One
|September 10, 2014
Summary
Necrotizing enterocolitis (NEC) in infants is linked to an abundance of strict anaerobes and reduced gut microbial diversity. This study analyzed intestinal tissue to understand bacterial roles in NEC pathogenesis.
Area of Science:
- Microbiology
- Infant Health
- Gastroenterology
Background:
- Previous infant fecal studies did not clarify the gut bacteria's role in necrotizing enterocolitis (NEC) pathogenesis.
- Characterizing bacterial communities in intestinal tissue is crucial for understanding NEC.
Purpose of the Study:
- To characterize bacterial communities within intestinal tissue resected from infants with and without NEC.
- To investigate the association between gut microbiota and NEC development.
Main Methods:
- Analyzed 26 intestinal tissue samples from 19 infants (16 NEC, 10 non-NEC).
- Utilized 16S rRNA gene sequencing for bacterial identification and quantitative PCR for bacterial load.
- Employed K-means clustering for microbial community analysis.
Main Results:
- NEC samples showed an increased bacterial burden.
- High inter-individual variability and opportunistic pathogens were present in both NEC and non-NEC samples.
- NEC samples exhibited an abundance of strict anaerobes and decreased microbial diversity, particularly in one cluster with Enterobacteriaceae.
Conclusions:
- Necrotizing enterocolitis (NEC) lacks a uniform microbial colonization pattern.
- NEC is associated with an increased abundance of strict anaerobes and a reduction in gut microbial community diversity.
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