The Cellular And Molecular Basis To The Paradox Of Positive Versus Negative T Cell Selection
Funder
National Health and Medical Research Council
Funding Amount
$278,090.00
Summary
The protection against disease requires the generation of white blood cells called T lymphocytes that are produced in the thymus. Each T cell has a specific surface receptor, generated by random gene switching, that can react against foreign pathogens. Since there is a very high conservation of molecules used in all organisms, some of these receptors could by chance also react against normal cells in the host. Eliminating all such self-reactive cells would mean, however, the repertoire remaining ....The protection against disease requires the generation of white blood cells called T lymphocytes that are produced in the thymus. Each T cell has a specific surface receptor, generated by random gene switching, that can react against foreign pathogens. Since there is a very high conservation of molecules used in all organisms, some of these receptors could by chance also react against normal cells in the host. Eliminating all such self-reactive cells would mean, however, the repertoire remaining for eliminating infection would be too low and immunodeficiency develops. This project investigates the mechanisms controlling the balance between defence infection and the need to prevent immune-based self destruction termed autoimmunity.Read moreRead less
Obstructive Sleep Apnoea As A Risk Factor For Atrial Fibrillation
Funder
National Health and Medical Research Council
Funding Amount
$64,631.00
Summary
Atrial fibrillation is the most common sustained cardiac arrhythmia and obstructive sleep apnoea is a common sleep-related breathing disorder. It has recently been suggested that OSA increases the risk of developing AF . The aim, therefore of this study, is to determine the incidence of sleep apnoea in our population of highly symtomatic patients with atrial fibrillation and to assess the outcome on arrhythmia burden of treatment with continuous positive airways pressure (CPAP).
Optimising Non-invasive Ventilation At Birth For Preterm Infants
Funder
National Health and Medical Research Council
Funding Amount
$735,912.00
Summary
Infants born very premature require respiratory support at birth to make the transition to newborn life. As these infants are very immature and prone to injury, modern respiratory care strategies utilise the least invasive approaches mainly applied using a facemask. However, we have discovered that the larynx is closed at birth and thereby prevents air from entering the lung. This application is focussed on optimising the efficiency of facemask ventilation at birth and stimulating breathing.
A Prospective Multicentre Randomized Study To Evaluate The Impact Of OSA Treatment With CPAP On Atrial Electrical And Structural Substrate And On Long Term Maintenance Of Sinus Rhythm Following Catheter Ablation Of Atrial Fibrillation
Funder
National Health and Medical Research Council
Funding Amount
$128,224.00
Summary
Atrial fibrillation(AF) is the commonest heart rhythm disorder causing stroke, heart failure and increased mortality. Similarly, obstructive sleep apnea(OSA) is increasingly recognised as a modern epidemic. Epidemiological data have demonstrated an independent association between the two conditions. We will conduct a prospective multicenter randomized study to evaluate the impact of OSA treatment on: (i)maintenance of sinus rhythm after catheter ablation of AF, (ii)atrial structure and function