Related Experiment Video
Updated: May 17, 2026

Development of an Antigen-driven Colitis Model to Study Presentation of Antigens by Antigen Presenting Cells to T Cells
Published on: September 18, 2016
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.
Abstract:
Gut microbiota composition can discriminate between allergic and healthy children, and the distinction may precede clinical manifestations of disease. The mother provides the first inoculum of bacteria, which influences the risk of becoming allergic later in life. Bifidobacterium species are major determinants of disease risk. Specific probiotics may modulate early microbial colonization, which represents the first intervention target in allergic disease, together with their ability to reverse the increased intestinal permeability characteristic of children with atopic eczema and food allergy. Probiotics also enhance gut-specific IgA responses, which are frequently defective in children with food allergy. In addition, probiotics have the potential to alleviate allergic inflammation locally and systemically.
Related Concept Videos
Probiotics
Antiasthma Drugs: Mast Cell Stabilizers and Anti-IgE Drugs
Mast cell stabilizers, such as cromolyn (also known as sodium cromoglycate) and nedocromil (Tilade), are effective drugs in asthma management. These stabilizers hinder histamine release by skillfully obstructing the activation of mast cells and other cellular entities. Notably, they navigate this task without...
Microorganisms in Medicine and Therapeutics
Allergic Reactions
Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the colonic...
Asthma: Pathogenesis and Management
Asthma is classified as allergic and non-allergic. Allergens such as dust mites, pollen, and pet dander trigger allergic asthma, while factors like cold air, intense emotions, or exercise can induce non-allergic asthma.

