The role of probiotics in allergic diseases

Sonia Michail1

  • 1Department of Gastroenterology and Nutrition, Wright State University Boonshoft School of Medicine Dayton Children's Medical Center, Dayton, Ohio 45404, USA. sonia.michail@wright.edu

Insights

Probiotics show limited benefits for pediatric atopic dermatitis and allergic rhinitis, with no current role in treating pediatric asthma. Further research is needed to clarify their role in allergic disorders.

Area of Science:

  • Pediatric Allergy and Immunology
  • Microbiome Research
  • Immunomodulation

Background:

  • Allergic disorders are prevalent in children, with environmental factors and gut microbiota implicated.
  • An aberrant gut microbiota may shift the T-helper 1 (Th1)/Th2 balance towards a Th2 response, exacerbating allergies.
  • Probiotics are investigated for their potential to modulate the immune system towards a Th1 response.

Purpose of the Study:

  • To review the current evidence on the role of probiotics in pediatric allergic disorders.
  • To evaluate the efficacy of probiotics in atopic dermatitis, allergic rhinitis, and bronchial asthma.
  • To identify areas for future research in probiotic therapy for pediatric allergies.

Main Methods:

  • Systematic review of in vitro studies and human clinical trials.
  • Analysis of data on probiotic use in prevention and treatment of pediatric allergic conditions.
  • Assessment of immune system modulation by probiotics.

Main Results:

  • In vitro studies suggest a potential role for probiotics in managing allergic conditions.
  • Human trials show limited preventive and therapeutic benefits of probiotics for pediatric atopic dermatitis.
  • Evidence for probiotic efficacy in allergic rhinitis is less robust; no current role in pediatric asthma treatment.

Conclusions:

  • Probiotic therapy demonstrates limited efficacy in pediatric allergic disorders.
  • Further high-quality studies are essential to define the precise role of probiotics.
  • The gut microbiota's influence on pediatric allergies warrants continued investigation.

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