Related Experiment Video

Updated: Mar 21, 2026

Quantitative Polymerase Chain Reaction-based Analyses of Murine Intestinal Microbiota After Oral Antibiotic Treatment
08:33

Quantitative Polymerase Chain Reaction-based Analyses of Murine Intestinal Microbiota After Oral Antibiotic Treatment

Published on: November 17, 2018

14.1K

Antibiotics, gut bugs and the young

Hilary Browne1

  • 1Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge CB10 1SA, UK.

Nature Reviews. Microbiology
|May 4, 2016
PubMed

Insights

Antibiotic use significantly alters the gut microbiota in preterm infants and young children. These changes can impact their long-term health and development.

Area of Science:

  • Microbiology
  • Pediatrics
  • Gastroenterology

Background:

  • Antibiotic administration is common in neonatal intensive care units.
  • Early-life antibiotic exposure may disrupt the developing intestinal microbiota.
  • The gut microbiome plays a crucial role in infant health.

Purpose of the Study:

  • To investigate the impact of antibiotic exposure on the intestinal microbiota composition in preterm infants.
  • To examine the effects of antibiotics on the gut microbial communities of young children.

Main Methods:

  • Analysis of fecal samples using 16S rRNA gene sequencing.
  • Comparison of microbial diversity and composition between antibiotic-exposed and unexposed cohorts.
  • Longitudinal data collection to track microbiota changes over time.

Main Results:

  • Significant alterations in microbial diversity and richness were observed in infants receiving antibiotics.
  • Specific bacterial taxa, such as Bacteroidetes and Firmicutes, showed marked changes.
  • Early-life antibiotic exposure was associated with a less diverse and less stable gut microbiota.

Conclusions:

  • Antibiotic use in early life profoundly impacts the intestinal microbiota of vulnerable populations.
  • Understanding these effects is critical for developing strategies to mitigate potential long-term health consequences.
  • Further research is needed to explore the clinical implications of antibiotic-induced dysbiosis.

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