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Updated: May 18, 2026
05:31
Noninvasive Sampling of Mucosal Lining Fluid for the Quantification of In Vivo Upper Airway Immune-mediator Levels
Published on: August 7, 2017
Environmental bacteria and childhood asthma.
M J Ege1, M Mayer, K Schwaiger
1University Children's Hospital Munich, Munich, Germany. markus.ege@med.uni-muenchen.de
Allergy
|September 22, 2012
Summary
Certain bacteria in diverse environments may protect against childhood asthma and allergies. This study identified specific bacterial species associated with reduced risk, offering insights into allergy prevention.
Area of Science:
- Microbiology and Immunology
- Environmental Health
- Pediatric Allergy and Asthma Research
Background:
- Previous research indicated a correlation between lower bacterial diversity and increased childhood asthma risk.
- The specific bacterial species responsible for this protective effect remained unidentified.
Purpose of the Study:
- To identify specific bacterial taxa associated with a reduced risk of asthma, atopy, and hay fever in children.
- To investigate the role of individual bacterial species in the protective association observed with microbial diversity.
Main Methods:
- Analysis of bacterial 16S rRNA gene fragments from mattress dust of 489 German school-age children using single-strand configuration polymorphism (SSCP).
- PCR amplification, DNA digestion, and electrophoresis to assess bacterial community diversity and specificity.
- Statistical analyses to identify bacterial bands associated with asthma, hay fever, and atopy, followed by sequencing for bacterial identification.
Main Results:
- Seven distinct bacterial bands showed a significant inverse association with asthma, atopic sensitization, and hay fever (odds ratios 0.17–0.73).
- Identified bacterial sequences included Acinetobacter sp., Lactobacillus spp., Neisseria spp., Staphylococcus sciuri, Jeotgalicoccus sp., and Corynebacterium spp.
- These findings suggest specific bacterial species may confer protection against allergic diseases.
Conclusions:
- Specific bacterial species within a diverse microbial environment may play a crucial role in preventing the development of childhood asthma and atopy.
- The study highlights potential targets for microbial-based interventions to reduce the burden of allergic diseases.
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