Severe Asthma Research Program (SARP)
A National Institutes of Health/ National Heart, Lung & Blood Institutes
sponsored network
Our
main focus is on the role of respiratory infections, particularly rhinovirus,
in severe asthma. It is thought that in some individuals, severe asthma is
caused by an infection with strains of rhinovirus that result in changes in the
airway environment. This change can produce reduced anti-viral activity
allowing for persistent infection, inflammation and obstruction in the airway.
We are also investigating the contribution of airway abnormalities in airflow obstruction
through pulmonary function testing and lung imaging. Though significant
advances have been made to identify distinguishing features of severe asthma,
there are still a number of key questions that remain in order to establish
mechanisms of this asthma phenotype and improve treatment. The project at the

William Busse, MD (Principal Investigator)