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Related Experiment Videos

Bronchoprovocation testing in asthma.

Ronina A Covar1

  • 1Department of Pediatrics, National Jewish Medical and Research Center, 1400 Jackson Street (J316), Denver, CO 80206, USA. covarr@njc.org

Immunology and Allergy Clinics of North America
|November 13, 2007
PubMed
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Bronchial hyperresponsiveness (BHR) in asthma involves inflammation and structural changes. Current treatments improve inflammation but not the persistent BHR linked to airway remodeling, necessitating new therapeutic approaches.

Area of Science:

  • Pulmonology
  • Asthma Pathophysiology
  • Airway Disease

Background:

  • Bronchial hyperresponsiveness (BHR) is a key feature in asthma, aiding diagnosis and prognosis.
  • BHR likely stems from genetic factors, airway inflammation, and airway remodeling.
  • Persistent BHR correlates with structural airway changes like basement membrane thickening and epithelial damage.

Purpose of the Study:

  • To elucidate the components of bronchial hyperresponsiveness in asthma.
  • To differentiate the roles of airway inflammation and structural changes in BHR.
  • To identify therapeutic targets for persistent BHR.

Main Methods:

  • Review of existing literature on BHR in asthma.
  • Analysis of factors contributing to variable and persistent BHR.

Related Experiment Videos

  • Evaluation of current treatment efficacies on BHR components.

    • Main Results:

    • Airway inflammation contributes to the variable component of BHR.
    • Persistent BHR is associated with irreversible airway remodeling.
    • Immunomodulatory therapies improve airway inflammation but not airway reactivity.

    Conclusions:

    • Persistent BHR, linked to airway remodeling, is refractory to current treatments.
    • Novel interventions targeting structural airway changes are required.
    • Understanding BHR components is crucial for effective asthma management.