Comparison of the Gut Microbiota of Preterm Infants Born before 32-Week Gestation with Feeding Intolerance
Purpose Feeding intolerance (FI) is a prevalent clinically sequential condition in preterm infants. To clarify its relationship with the gut microbiota, we compared microbial diversity and taxonomic composition at 2 and 4 weeks of age in infants born before 32 weeks of gestation. Methods Between Aug...
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Korean Society of Neonatology
2025-05-01
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| Series: | Neonatal Medicine |
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| Online Access: | http://neo-med.org/upload/pdf/nm-2025-32-1-21.pdf |
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| author | Bo Kyeong Jin Hyunsu Kim Cho Ae Lee Hye-Rim Kim |
| author_facet | Bo Kyeong Jin Hyunsu Kim Cho Ae Lee Hye-Rim Kim |
| author_sort | Bo Kyeong Jin |
| collection | DOAJ |
| description | Purpose Feeding intolerance (FI) is a prevalent clinically sequential condition in preterm infants. To clarify its relationship with the gut microbiota, we compared microbial diversity and taxonomic composition at 2 and 4 weeks of age in infants born before 32 weeks of gestation. Methods Between August 2021 and December 2022, we prospectively enrolled infants who delivered before 32 weeks of gestation and were admitted to the neonatal intensive care unit at CHA Bundang Medical Center. Forty-four preterm infants were grouped based on the presence (n=16) or absence (n=28) of FI. Fecal samples were obtained at 2 and 4 weeks after birth and analyzed using 16S rRNA gene sequencing to determine microbial profiles. Results Microbial α-diversity and β-diversity did not differ significantly between groups at either time point. At the genus level, Staphylococcus was significantly more abundant in the FI group than in the feeding tolerance group at 2 weeks postnatal age (P=0.016). Linear discriminant analysis effect size revealed that Staphylococcus, Pseudomonas, and Escherichia were markedly enriched in the FI group at all time points. Conclusion Early colonization by potentially pathogenic genera, particularly Staphylococcus, may precede the development of FI in preterm infants. These findings highlight the potential microbial composition associated with FI and may provide preliminary insights for future microbiome-targeted research in neonatal care. |
| format | Article |
| id | doaj-art-ffe40866a80a4a07868ebd9b19680c1a |
| institution | DOAJ |
| issn | 2287-9412 2287-9803 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Korean Society of Neonatology |
| record_format | Article |
| series | Neonatal Medicine |
| spelling | doaj-art-ffe40866a80a4a07868ebd9b19680c1a2025-08-20T02:39:28ZengKorean Society of NeonatologyNeonatal Medicine2287-94122287-98032025-05-01321212910.5385/nm.2025.32.1.211105Comparison of the Gut Microbiota of Preterm Infants Born before 32-Week Gestation with Feeding IntoleranceBo Kyeong Jin0Hyunsu Kim1Cho Ae Lee2Hye-Rim Kim Department of Pediatrics, CHA Bundang Medical Center, CHA University, Seongnam, Korea Department of Pediatrics, CHA Bundang Medical Center, CHA University, Seongnam, Korea Department of Pediatrics, CHA Bundang Medical Center, CHA University, Seongnam, KoreaPurpose Feeding intolerance (FI) is a prevalent clinically sequential condition in preterm infants. To clarify its relationship with the gut microbiota, we compared microbial diversity and taxonomic composition at 2 and 4 weeks of age in infants born before 32 weeks of gestation. Methods Between August 2021 and December 2022, we prospectively enrolled infants who delivered before 32 weeks of gestation and were admitted to the neonatal intensive care unit at CHA Bundang Medical Center. Forty-four preterm infants were grouped based on the presence (n=16) or absence (n=28) of FI. Fecal samples were obtained at 2 and 4 weeks after birth and analyzed using 16S rRNA gene sequencing to determine microbial profiles. Results Microbial α-diversity and β-diversity did not differ significantly between groups at either time point. At the genus level, Staphylococcus was significantly more abundant in the FI group than in the feeding tolerance group at 2 weeks postnatal age (P=0.016). Linear discriminant analysis effect size revealed that Staphylococcus, Pseudomonas, and Escherichia were markedly enriched in the FI group at all time points. Conclusion Early colonization by potentially pathogenic genera, particularly Staphylococcus, may precede the development of FI in preterm infants. These findings highlight the potential microbial composition associated with FI and may provide preliminary insights for future microbiome-targeted research in neonatal care.http://neo-med.org/upload/pdf/nm-2025-32-1-21.pdfpreterm infantmicrobiomefeeding intolerance |
| spellingShingle | Bo Kyeong Jin Hyunsu Kim Cho Ae Lee Hye-Rim Kim Comparison of the Gut Microbiota of Preterm Infants Born before 32-Week Gestation with Feeding Intolerance Neonatal Medicine preterm infant microbiome feeding intolerance |
| title | Comparison of the Gut Microbiota of Preterm Infants Born before 32-Week Gestation with Feeding Intolerance |
| title_full | Comparison of the Gut Microbiota of Preterm Infants Born before 32-Week Gestation with Feeding Intolerance |
| title_fullStr | Comparison of the Gut Microbiota of Preterm Infants Born before 32-Week Gestation with Feeding Intolerance |
| title_full_unstemmed | Comparison of the Gut Microbiota of Preterm Infants Born before 32-Week Gestation with Feeding Intolerance |
| title_short | Comparison of the Gut Microbiota of Preterm Infants Born before 32-Week Gestation with Feeding Intolerance |
| title_sort | comparison of the gut microbiota of preterm infants born before 32 week gestation with feeding intolerance |
| topic | preterm infant microbiome feeding intolerance |
| url | http://neo-med.org/upload/pdf/nm-2025-32-1-21.pdf |
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