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Parenteral antibiotics reduce bifidobacteria colonization and diversity in neonates

Séamus Hussey1, Rebecca Wall, Emma Gruffman

  • 1Department of Paediatrics and Child Health, University College Cork, Cork, Ireland.

International Journal of Microbiology
|September 3, 2010
PubMed

Insights

Parenteral antibiotic treatment in newborns disrupts the natural development of beneficial bifidobacteria. This early-life gut microbiome disturbance may impact infant health, necessitating further research into probiotic interventions.

Area of Science:

  • Microbiology
  • Neonatal Health
  • Gut Microbiome Research

Background:

  • The early neonatal period is critical for establishing the infant gut microbiome.
  • Bifidobacteria are essential beneficial bacteria for infant gut health.
  • Parenteral antibiotic use in newborns is common but its impact on the microbiome is not fully understood.

Purpose of the Study:

  • To investigate the effect of early-life parenteral antibiotic treatment on Bifidobacterium colonization in newborns.
  • To compare Bifidobacterium diversity in antibiotic-treated neonates versus controls.

Main Methods:

  • Study included nine neonates treated with intravenous ampicillin/gentamicin and nine controls.
  • Stool samples were collected at four and eight weeks of life.
  • Denaturing gradient gel electrophoresis (DGGE) analyzed Bifidobacterium composition and diversity.

Main Results:

  • Bifidobacteria were detected in all control infants at 4 and 8 weeks.
  • Detectable Bifidobacteria were found in only 6/9 antibiotic-treated infants at 4 weeks and 8/9 at 8 weeks.
  • Control infants exhibited greater Bifidobacterium species diversity compared to antibiotic-treated infants.

Conclusions:

  • Short-term parenteral antibiotic therapy in neonates disrupts Bifidobacterium colonization patterns.
  • This early-life antibiotic exposure impacts the developing gut microbiome.
  • Further research is needed to assess the necessity of probiotic supplementation for affected infants.

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