Probiotics in the development and treatment of allergic disease

Erika Isolauri1, Samuli Rautava, Seppo Salminen

  • 1Department of Paediatrics, University of Turku and Turku University Hospital, Kiinamyllynkatu 4-8, 20520 Turku, Finland. erika.isolauri@utu.fi

Insights

Early gut bacteria, especially Bifidobacterium, influence allergy risk. Probiotics may help by modulating gut microbiota and reducing inflammation in infants.

Area of Science:

  • Microbiology
  • Immunology
  • Allergology

Background:

  • Gut microbiota composition differentiates allergic from healthy children, potentially before symptoms appear.
  • Maternal bacterial inoculation is a key factor influencing a child's future allergy risk.
  • Bifidobacterium species are identified as significant determinants of allergic disease risk.

Purpose of the Study:

  • To explore the role of gut microbiota in early life allergy development.
  • To investigate the potential of probiotics as an early intervention for allergic diseases.
  • To assess the impact of probiotics on intestinal permeability and immune responses.

Main Methods:

  • Analysis of gut microbiota composition in allergic versus healthy children.
  • Evaluation of probiotic interventions for modulating microbial colonization.
  • Assessment of changes in intestinal permeability and IgA responses.

Main Results:

  • Gut microbiota profiles can distinguish between allergic and healthy children.
  • Probiotics show potential in modulating early microbial colonization.
  • Probiotics may reverse increased intestinal permeability and enhance IgA responses in allergic children.

Conclusions:

  • Early gut microbial colonization, influenced by the mother, is critical for allergy development.
  • Probiotics represent a promising early intervention strategy for allergic diseases.
  • Probiotics can positively impact gut barrier function and immune responses, potentially alleviating allergic inflammation.

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