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[Qualitative and quantitative composition of intestinal microflora in healthy young children]

E A Postnikova1, A P Pikina, L I Kafarskaia

  • 1State Medical University, Moscow, Russia.

Zhurnal Mikrobiologii, Epidemiologii I Immunobiologii
|March 18, 2004
PubMed

Insights

Infant gut microbiota in Moscow shows high levels of both beneficial and opportunistic bacteria during the first year of life. As children age, opportunistic bacteria are typically cleared, indicating a developing gut ecosystem.

Area of Science:

  • Microbiology
  • Pediatrics
  • Human Microbiome

Background:

  • The intestinal microflora plays a crucial role in infant health and development.
  • Understanding the dynamic changes in gut microbiota composition during early life is essential.

Purpose of the Study:

  • To analyze the qualitative and quantitative composition of the large intestine microflora in healthy infants.
  • To identify the prevalence of both beneficial and opportunistic bacteria during the first year of life.

Main Methods:

  • Qualitative and quantitative analysis of fecal microflora.
  • Study involved 45 healthy infants aged 6-12 months in Moscow.

Main Results:

  • High concentrations of bifidobacteria, enterococci, and nonpathogenic Escherichia were observed.
  • Opportunistic bacteria, including Clostridium, citrate-assimilating enterobacteria, and Staphylococcus, were also frequently detected.
  • Opportunistic bacteria were partially or completely eliminated in older children.

Conclusions:

  • Infant gut microbiota composition is influenced by host factors, nutrition, and environmental exposures.
  • The transient presence of opportunistic bacteria in early infancy may be a normal developmental stage.

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