Improving Outcomes In Obstructive Sleep Apnoea Through Individualised Treatment Of Physiological Abnormalities
Funder
National Health and Medical Research Council
Funding Amount
$340,891.00
Summary
The most common treatment for obstructive sleep apnoea, continuous positive airway pressure, is only accepted by ~50% of patients. Individualised treatment options are urgently needed. In order to predict who will benefit from the common alternative therapies, my research will show how, upper airway surgery improves obstructive sleep apnoea at an individual level and develop tools that will help clinicians select patients for these therapies.
Modification Of The Microbiome And Utilisation Of Microbial Products As Novel Treatments For COPD
Funder
National Health and Medical Research Council
Funding Amount
$1,226,338.00
Summary
Smoking leads to lung inflammation that causes emphysema - a major health problem in Australia. Emphysema progressively declines even if smoking stops and there are no treatments. Recently changes in gut microbes have been linked to inducing or protecting against inflammation in the gut and lung. Thus we may be able to control inflammation by modifying these gut microbiomes. We may be able to ingest specific microbes or use specific antibiotics or other factors as new treatments for emphysema.
Elucidating The Role And Potential For Therapeutic Targeting Of TLR7 In Emphysema And COPD
Funder
National Health and Medical Research Council
Funding Amount
$925,780.00
Summary
Emphysema is a major cause of illness and death and there are no effective treatments. It is caused by smoking that damages the airways and air sacs but how this occurs is not well understood. We have found that a new factor, called Toll-like receptor 7, is involved in emphysema. In this study we will now characterise its roles in this disease, work out how it induces emphysema and test new inhibitors (antibodies) that we have developed as treatments.
Chronotherapy Of Hypertension In Obstructive Sleep Apnoea
Funder
National Health and Medical Research Council
Funding Amount
$232,738.00
Summary
Obstructive Sleep Apnoea (OSA) is linked with excess cardiovascular disease, and this is partly attributed to increased high blood pressure (hypertension). Understanding how both conditions exacerbate hypertension and whether blood pressure control can be improved by altering the time that medication is taken will lead to improvements in health.
Mechanisms And Treatment Of Upper Airway Collapse In Obstructive Sleep Apnoea
Funder
National Health and Medical Research Council
Funding Amount
$328,668.00
Summary
Obstructive sleep apnoea (OSA) is characterized by intermittent closure of the upper airway (throat) resulting in episodes of decreased blood oxygen levels, increased blood pressure and disturbed sleep. Repetitive overnight arousals from sleep cause excessive daytime tiredness and lethargy, which have major consequences for social well-being and productivity in our community. OSA is a common condition, affecting as many as 2 to 4% of middle aged adults, and is associated with an increased cardio ....Obstructive sleep apnoea (OSA) is characterized by intermittent closure of the upper airway (throat) resulting in episodes of decreased blood oxygen levels, increased blood pressure and disturbed sleep. Repetitive overnight arousals from sleep cause excessive daytime tiredness and lethargy, which have major consequences for social well-being and productivity in our community. OSA is a common condition, affecting as many as 2 to 4% of middle aged adults, and is associated with an increased cardiovascular risk, however the mechanisms underlying the increased upper airway collapsibility in individuals with OSA are not well understood. The proposed studies represent a series of investigations into fundamental mechanisms of neural and mechanical control of upper airway patency, how these mechanisms act to stabilize the upper airway, and whether these reflex control mechanisms can be manipulated to provide a novel treatment for OSA.Read moreRead less
Investigatin The Causes Of Failed Efferocytosis In COPD-emphysema With A View To Identifying Novel Theraputic Targets
Funder
National Health and Medical Research Council
Funding Amount
$380,558.00
Summary
COPD is a leading cause of death. Smoking is the major cause of COPD and many sufferers are left with permanent damage and need ongoing treatment even after smoking cessation. Current treatments for COPD generally have limited efficacy. The project will identify the reason for the large number of dying cells and defective clearance of these cells that we have identified in the airways in COPD and study novel treatments that we hope will improve the health and well being of those with COPD.
Asthma Prevention And Treatment Using UVB Radiation-induced Immunomodulation
Funder
National Health and Medical Research Council
Funding Amount
$496,446.00
Summary
The prevalence of asthma is increasing despite the adoption of modern expensive drugs. Our studies suggest that exposure of skin to an erythemal dose of the wavelengths of UVB radiation found in sunlight can suppress responses to allergens encountered in the airways. We are requesting support to study the mechanisms in mice by which exposure to UVB radiation on their shaved backs can reduce inflammation in the airway mucosa upon allergen exposure. Whole body immunomodulatory effects of UVB radia ....The prevalence of asthma is increasing despite the adoption of modern expensive drugs. Our studies suggest that exposure of skin to an erythemal dose of the wavelengths of UVB radiation found in sunlight can suppress responses to allergens encountered in the airways. We are requesting support to study the mechanisms in mice by which exposure to UVB radiation on their shaved backs can reduce inflammation in the airway mucosa upon allergen exposure. Whole body immunomodulatory effects of UVB radiation have been previously described but have not been scientifically linked with asthma development. This is a very new and novel research area which supports century-old anecdotal reports that holidays at beach and mountain resorts associated with increased UVB exposure are beneficial in asthma treatment. This is a proof of principle study. If we can confirm that UVB is immunomodulatory and better understand the mechanisms by which UVB suppresses inflammation in the airways, we will investigate the potential of non-carcinogenic, UVB-induced, skin-derived intermediary molecules to have the same regulatory effects.Read moreRead less
Duty Ratio: A Simple Method For Quantifying Loop Gain During Breathing Instability
Funder
National Health and Medical Research Council
Funding Amount
$343,514.00
Summary
This proposal presents a new method for calculating the severity of sleep disordered breathing in patients. The proposal also tests the effectiveness of our method in experiments in animals and humans. The method, which requires no intervention in the patient, offers promise as a means for testing the efficacy of treatments for the unstable breathing pattern found in patients with heart failure in whom the presence of unstable breathing is associated with poor outcome.
Prediction Of Oral Appliance Treatment Outcome In Obstructive Sleep Apnoea
Funder
National Health and Medical Research Council
Funding Amount
$280,200.00
Summary
Obstructive sleep apnoea (OSA) is a very common disorder, affecting approximately 2% of women and 4% of men in the middle-aged workforce . It is characterised by repetitive, complete or partial closure of the throat passage during sleep, resulting in sleep disturbance and low oxygen levels. OSA is recognised as a serious public health problem. There is growing evidence supporting the use of oral appliances to treat OSA. It is thought that these work by enlarging the throat passage, but this rema ....Obstructive sleep apnoea (OSA) is a very common disorder, affecting approximately 2% of women and 4% of men in the middle-aged workforce . It is characterised by repetitive, complete or partial closure of the throat passage during sleep, resulting in sleep disturbance and low oxygen levels. OSA is recognised as a serious public health problem. There is growing evidence supporting the use of oral appliances to treat OSA. It is thought that these work by enlarging the throat passage, but this remains uncertain. The aim of this project is to gain a better understanding of how such appliances work, so as to be able to predict which patients will particularly benefit from this form of treatment.Read moreRead less