Development Of An Effective Therapy For Cheyne-Stokes Breathing In Heart Failure.
Funder
National Health and Medical Research Council
Funding Amount
$604,030.00
Summary
During sleep, patients with heart failure often exhibit a cyclic pattern of breathing in which a period of regular breathing alternates with a period when breathing ceases. This breathing pattern is associated with increased mortality and reduced quality of life but to date no effective treatment for it exists. We have developed a method to calculate an exact level of carbon dioxide to stabilise breathing in each individual, offering the prospect of a better night’s sleep and a longer life.
THE EFFECT OF LONG ACTING BRONCHODILATORS ON VENTILATION IN COPD
Funder
National Health and Medical Research Council
Funding Amount
$143,676.00
Summary
COPD is a common and important smoking-related lung disease. Well-established treatments with inhaled medications including long-acting bronchodilators have a proven clinical track record. However the physiological basis for their effects is still under investigation. This research examines some of the physiological changes in lung function and the response to long-acting bronchodilators in patients with COPD, and may help explain why some patients respond to therapy while others do not, leading ....COPD is a common and important smoking-related lung disease. Well-established treatments with inhaled medications including long-acting bronchodilators have a proven clinical track record. However the physiological basis for their effects is still under investigation. This research examines some of the physiological changes in lung function and the response to long-acting bronchodilators in patients with COPD, and may help explain why some patients respond to therapy while others do not, leading to more targeted therapeuticsRead moreRead less
Mucous In Heterogeneous And Progressive Early Cystic Fibrosis Lung Disease
Funder
National Health and Medical Research Council
Funding Amount
$347,948.00
Summary
Cystic fibrosis (CF) is the most common genetically acquired, life-shortening chronic illness affecting young Australians today. Individuals with CF have a reduced ability to clear mucous from the airways resulting in respiratory infections and inflammation. This project will quantify the biochemical and biophysical properties of mucous in young children with CF to generate novel insights into the pathogenesis of early disease, biomarkers of disease progression and therapeutic targets.
Assessing a model of the physiological changes at arousal from sleep. Arousals from sleep are common in the elderly and have adverse consequences. This project will investigate a model of the changes in bodily processes (muscle, brain and cardiovascular activation) that occur when humans awaken from sleep.
Dysfunction of the nervous system plays an important role in the symptoms of many respiratory diseases. For example, excessive non-productive coughing, elevated mucous secretion, reduced airway patency and hyperreactivity are all characteristic symptoms of diseases such as asthma and all involve over-activity of the nervous system. This research aims to understand the neural circuitry that is involved in controlling the airways and the mechanisms that underlie how this circuitry can become dysfu ....Dysfunction of the nervous system plays an important role in the symptoms of many respiratory diseases. For example, excessive non-productive coughing, elevated mucous secretion, reduced airway patency and hyperreactivity are all characteristic symptoms of diseases such as asthma and all involve over-activity of the nervous system. This research aims to understand the neural circuitry that is involved in controlling the airways and the mechanisms that underlie how this circuitry can become dysfunctional.Read moreRead less
Patients With Obstructive Sleep Apnoea And Motor Control
Funder
National Health and Medical Research Council
Funding Amount
$302,798.00
Summary
Obstructive Sleep Apnoea is a major health concern, affecting at least 4% of the population, associated with obesity, and aging. The symptoms of sleep apnoea are definitively associated with cardiovascular complications. I am focused on understanding how sleep apnoea patients are remodelled with the rewiring of connections between the brain and muscles. Using neurophysiological techniques, this project will study how the anatomy and functional connections of circuits change with sleep apnoea.
Optimising Lung Surfactant Protein Production In The IUGR Fetus At Risk Of Preterm Delivery
Funder
National Health and Medical Research Council
Funding Amount
$463,853.00
Summary
Pregnant women at risk of preterm labour after 24 weeks gestation are increasingly administered glucocorticoids in Australian hospitals in order to promote fetal lung maturation and a successful transition to extrauterine life. Antenatal glucocorticoid treatment reduces overall neonatal mortality, the risk of respiratory distress syndrome and the need for respiratory support. Babies that are born small may not benefit from this treatment in the same way that average size babies benefit.
Influence Of In Utero Environment On Diaphragm Structure And Function
Funder
National Health and Medical Research Council
Funding Amount
$494,966.00
Summary
The diaphragm is the major muscle involved in breathing. Normal function of the diaphragm is essential to survival. Preterm babies may be exposed to infection and other agents that interfere with diaphragm development and make breathing efforts weaker after birth, potentially leading to respiratory failure. This study will study diaphragms of preterm lambs to determine how fetal exposure to infection and steroids affect fetal diaphragm development, and if adverse effects are prevented by fetal t ....The diaphragm is the major muscle involved in breathing. Normal function of the diaphragm is essential to survival. Preterm babies may be exposed to infection and other agents that interfere with diaphragm development and make breathing efforts weaker after birth, potentially leading to respiratory failure. This study will study diaphragms of preterm lambs to determine how fetal exposure to infection and steroids affect fetal diaphragm development, and if adverse effects are prevented by fetal treatment with blocking agents.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE130100035
Funder
Australian Research Council
Funding Amount
$300,000.00
Summary
Hyperpolarised gas functional lung and molecular imaging. This project will produce a polariser to generate magnetised gas for research with magnetic resonance imaging (MRI). This allows imaging of normal and abnormal lung ventilation and circulation in animal and humans. The use of these hyperpolarised gases can also be used to tag specific molecules and increase understanding of lung metabolism.
Intrinsic Response Of Airways To Cyclical Dilation And Elongation In Breathing
Funder
National Health and Medical Research Council
Funding Amount
$355,014.00
Summary
Variations in lung pressures during breathing produce cyclical expansion of the airway tubes. These respiratory movements provide one of the most powerful protective mechanisms for the lung. The protective mechanism fails in asthma so that cyclical expansion of the airway tubes can make breathing more difficult. Current belief is that protective and harmful effects of lung expansion occur by either relaxation or contraction of the muscles lining the airway tubes. Findings from this laboratory su ....Variations in lung pressures during breathing produce cyclical expansion of the airway tubes. These respiratory movements provide one of the most powerful protective mechanisms for the lung. The protective mechanism fails in asthma so that cyclical expansion of the airway tubes can make breathing more difficult. Current belief is that protective and harmful effects of lung expansion occur by either relaxation or contraction of the muscles lining the airway tubes. Findings from this laboratory suggest that the above dogma needs reconsideration. The project will utilize a novel model of the lung to enable us to determine the mechanisms producing both the protective effect, and in asthmatics the harmful effects of cyclical lung expansion. Once the part of the lung that 'fails' in this aspect of asthma has been detected then therapeutic strategies can be put in place to reverse the defect.Read moreRead less