Cited by 114Gut microbiota and healthCystic Fibrosis Research AdvancesInfant Nutrition and Health

Cross-Sectional and Longitudinal Comparisons of the Predominant Fecal Microbiota Compositions of a Group of Pediatric Patients with Cystic Fibrosis and Their Healthy Siblings

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Duytschaever, Gwen, Huys, Geert, Bekaert, Maarten, Boulanger, Linda, De Boeck, Kris, Vandamme, Peter·2011·Applied and Environmental Microbiology

Abstract

Although only poorly documented, it can be assumed that intensive antibiotic treatments of chronic lung infections in patients with cystic fibrosis (CF) also affect the diversity and metabolic functioning of the gastrointestinal microbiota and potentially lead to a state of dysbiosis. A better knowledge of the differences in gut microbiota composition and stability between patients with CF and healthy subjects could lead to optimization of current antibiotic therapies and/or development of add-on therapies. Using conventional culturing and population fingerprinting by denaturing gradient gel electrophoresis (DGGE) of 16S rRNA amplicons, we compared the predominant fecal microbiota of 21 patients with CF and 24 healthy siblings in a cross-sectional study. General medium counts, as well as counts on media specific for lactic acid bacteria, clostridia, Bifidobacterium spp., Veillonella spp., and Bacteroides-Prevotella spp., were consistently higher in sibling samples than in CF samples, whereas the reverse was found for enterobacterial counts. DGGE fingerprinting uncovered large intersubject variations in both study groups. On the other hand, the cross-sectional data indicated that the predominant fecal microbiota of patients and siblings had comparable species richness. In addition, a longitudinal study was performed on 7 or 8 consecutive samples collected over a 2-year period from two patients and their respective siblings. For these samples, DGGE profiling indicated an overall trend toward lower temporal stability and lower species richness in the predominant fecal CF microbiota. The observed compositional and dynamic perturbations provide the first evidence of a general dysbiosis in children with CF compared to their siblings.

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  • In general, cystic fibrosis patients, regardless of their genetic background, display a permanent dysbiosis, motivated in part by the characteristics of the disease (thick mucus secretion and pancreatic insufficiency) and the effect related to the aggressive antibiotic therapy.

    “In general, these patients, regardless of their genetic background, display a permanent dysbiosis, motivated in part by the characteristics of the disease (thick mucus secretion and pancreatic insufficiency) and the effect related to the aggressive antibiotic therapy [87] .”

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Authors
Duytschaever, G., Huys, G., Bekaert, M., Boulanger, L., De Boeck, K., & Vandamme, P.
Affiliations
  • Ghent University (BE)
  • Universitair Ziekenhuis Leuven (BE)
  • Department of Pediatrics, University Hospital of Leuven, Leuven, Belgium
Corresponding author
Duytschaever, Gwen
Venue
Applied and Environmental Microbiology
Published
2011-11-15
Volume
77
Issue
22
Pages
8015-8024
ISSN
  • 0099-2240 (ISSN-L)
  • 1098-5336
OpenAlex
W2066754577
Cited by
114
References
83
Citations by year
2026: 4 · 2025: 4 · 2024: 5 · 2023: 9 · 2022: 9 · 2021: 7 · 2020: 7 · 2019: 6 · 2018: 7 · 2017: 9 · 2016: 14 · 2015: 11 · 2014: 10 · 2013: 7 · 2012: 4
FWCI
2.72
Type
journal article
Language
en
Open access
Locations
  • Applied and Environmental Microbiology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Ghent University Academic Bibliography (Ghent University) (submittedVersion, other-oa)
Funders
Universiteit Gent
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Cystic Fibrosis Research Advances
  • Health Sciences › Nursing › Nutrition and Dietetics › Infant Nutrition and Health
Keywords
cystic fibrosis, gut microbiota, fecal microbiota composition, dysbiosis, antibiotic therapy, lactic acid bacteria, Clostridia, Bifidobacterium, Veillonella, Bacteroides-Prevotella, Enterobacteriaceae, temporal stability, species richness, children, healthy siblings
MeSH terms
Anti-Bacterial Agents, Bacteria, Cross-Sectional Studies, Cystic Fibrosis, DNA, Bacterial, DNA, Ribosomal, Feces, Humans, Longitudinal Studies, RNA, Ribosomal, 16S, DNA Fingerprinting, Siblings, Gastrointestinal Tract, Biodiversity, Denaturing Gradient Gel Electrophoresis

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