Low-dose antibiotic prophylaxis induces rapid modifications of the gut microbiota in infants with vesicoureteral reflux
Background and Objectives: Maturation of the gut microbiota (GM) in infants is critically affected by environmental factors, with potential long-lasting clinical consequences. Continuous low-dose antibiotic prophylaxis (CAP) is the standard of care for children with vesicoureteral reflux (VUR), in o...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
17 June 2021
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| In: |
Frontiers in Pediatrics
Year: 2021, Jahrgang: 9, Pages: 1-9 |
| ISSN: | 2296-2360 |
| DOI: | 10.3389/fped.2021.674716 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.3389/fped.2021.674716 Verlag, kostenfrei, Volltext: https://www.frontiersin.org/articles/10.3389/fped.2021.674716 
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| Verfasserangaben: | William Morello, Federica D'Amico, Jessica Serafinelli, Silvia Turroni, Isabella Abati, Jessica Fiori, Esra Baskin, Fatos Yalcinkaya, Augustina Jankauskiene, Marco Pennesi, Aleksandra Zurowska, Francesca Becherucci, Dorota Drozdz, Djalila Mekahli, Grazyna Krzemien, Claudio La Scola, Katarzyna Taranta-Janusz, Otto Mehls, Franz Schaefer, Marco Candela and Giovanni Montini |
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| 245 | 1 | 0 | |a Low-dose antibiotic prophylaxis induces rapid modifications of the gut microbiota in infants with vesicoureteral reflux |c William Morello, Federica D'Amico, Jessica Serafinelli, Silvia Turroni, Isabella Abati, Jessica Fiori, Esra Baskin, Fatos Yalcinkaya, Augustina Jankauskiene, Marco Pennesi, Aleksandra Zurowska, Francesca Becherucci, Dorota Drozdz, Djalila Mekahli, Grazyna Krzemien, Claudio La Scola, Katarzyna Taranta-Janusz, Otto Mehls, Franz Schaefer, Marco Candela and Giovanni Montini |
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| 520 | |a Background and Objectives: Maturation of the gut microbiota (GM) in infants is critically affected by environmental factors, with potential long-lasting clinical consequences. Continuous low-dose antibiotic prophylaxis (CAP) is the standard of care for children with vesicoureteral reflux (VUR), in order to prevent recurrent urinary tract infections. We aimed to assess short-term GM modifications induced by CAP in infants.Methods: We analyzed the GM structure in 87 infants (aged 1-5 months) with high-grade VUR, previously exposed or naïve to CAP. Microbial DNA was extracted from stool samples. GM profiling was achieved by 16S rRNA gene-based next-generation sequencing. Fecal levels of short- and branched-chain fatty acids were also assessed.Results: 36/87 patients had been taking daily CAP for a median time of 47 days, while 51/87 had not. In all patients, the GM was predominantly composed by Bifidobacteriaceae and Enterobacteriaceae. Subgroup comparative analysis revealed alterations in the GM composition of CAP-exposed infants at phylum, family and genus level. CAP-exposed GM was enriched in members of Enterobacteriaceae and Bacteroidetes, especially in the genera Bacteroides and Parabacteroides, and showed a trend toward increased Klebsiella, often associated with antibiotic resistance. In contrast, the GM of non-CAP children was mostly enriched in Bifidobacterium. No differences were found in fatty acid levels.Conclusions: In infants with VUR, even a short exposure to CAP definitely alters the GM composition, with increased relative abundance of opportunistic pathogens and decreased proportions of health-promoting taxa. Early low-dose antibiotic exposure might bear potential long-term clinical risks. | ||
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