Related Experiment Video
Updated: May 31, 2026

Noninvasive Sampling of Mucosal Lining Fluid for the Quantification of In Vivo Upper Airway Immune-mediator Levels
Published on: August 7, 2017
Bacteria and asthma: more there than we thought.
Daniel E Dulek1, R Stokes Peebles
1Department of Pediatrics, Division of Pediatric Infectious Diseases, Monroe Carell Jr, Children's Hospital at Vanderbilt, Vanderbilt University Medical Center, Nashville, TN, USA.
Adult asthma patients have a greater airway bacterial burden and increased microbiota diversity compared to healthy individuals. This suggests a potential link between airway bacteria and asthma development.
Area of Science:
- Microbiology
- Pulmonology
- Immunology
Background:
- Investigated the airway microbiota in adult asthmatics with suboptimal control versus healthy adults.
- Utilized a case-control study design to compare microbial characteristics.
Discussion:
- Observed significantly greater bacterial burden in asthmatic subjects.
- Found correlations between increased airway microbiota variability/diversity and heightened bronchial hyper-responsiveness.
Key Insights:
- Airway microbiota composition differs between asthmatic and healthy adults.
- Microbiota diversity and variability may play a role in asthma severity and bronchial hyper-responsiveness.
Outlook:
- Further research is needed to elucidate the precise role of the airway microbiota in asthma pathogenesis.
- Potential therapeutic strategies targeting the airway microbiome in asthma management warrant investigation.
Related Concept Videos
Microbiota of the Respiratory Tract
Asthma I: Introduction
Asthma-I: Introduction
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.
Asthma-II: Pathophysiology and Classification
Additionally, environmental and genetic factors play crucial roles in determining an individual's susceptibility to asthma and the severity of their condition.
Critical processes in asthma pathophysiology include:
Asthma-III: Symptoms and Complications
Classification of Asthma
