Mechanisms Of Impaired Bronchodilator Response Associated With Fatty Acid Intake In Obese Asthma
Funder
National Health and Medical Research Council
Funding Amount
$694,365.00
Summary
Obese asthmatics typically have a high dietary fat intake, which reduces the efficacy of their asthma medications. We will determine which types of dietary fat affect asthma medications. We will also determine which asthma medications are affected by a high fat load. Finally, we will examine the mechanisms by which fatty acids affect the efficacy of asthma medications. This is will inform new treatment options for managing the many obese asthmatics who are not able to achieve weight loss.
Asthma causes wheeze and shortness of breath via airway narrowing, with asthma attacks commonly caused by virus infections. We plan to investigate how airway narrowing during an asthma attack decreases the body’s ability to fight off a viral infection, causing prolonged infection, worse asthma symptoms, more airway inflammation and long-term damage within the airways. We will attempt to use current and novel treatments to reverse these problems, and improve treatment for asthma.
Targeting Small Airways To Overcome Resistance To Therapy In Asthma
Funder
National Health and Medical Research Council
Funding Amount
$531,045.00
Summary
There is a pressing need to overcome resistance to current therapies for severe asthma. Targetting inflammation-induced changes in small airway contraction offers an alternative strategy. We have identified a novel bronchodilator that relaxes maximally contracted mouse small airways when current treatment is ineffective. We will demonstrate its efficacy in animal models mimicking key features of human asthma, and define new ways to improve outcomes in poorly-controlled asthma.