Studies On The Effects Of Endogenous And Exogenous Opioids In Modulating Exercise-induced Dyspnoea In People With Moderate / Severe Chronic Obstructive Pulmonary Disease (COPD). Two Double-blind Randomised, Placebo Controlled Trials.
Funder
National Health and Medical Research Council
Funding Amount
$197,086.00
Summary
There is evidence that morphine-like chemicals made by the body itself help reduce breathlessness. It is not clear whether this response is because of the effects of these morphine-like chemicals on the brain, in the lung or both. This study will help understand where these chemicals act to reduce breathlessness in people with emphysema during exercise. Subsequently, it will also help to understand whether small, regular doses of morphine safely further reduce breathlessness during exercise.
The Clinical Utility Of Small Airway Function Tests In Paediatric Respiratory Disease
Funder
National Health and Medical Research Council
Funding Amount
$64,631.00
Summary
Respiratory disease is an important child health issue with long term implications into adulthood. The evaluation of small airways involvement in disease processes, using an accurate sensitive measures of function, such as forced oscillation technique and multiple breath washout, potentially facilitates not only early detection of disease, but instigation of earlier treatment, better assessment of response to treatment, and ultimately better outcome.
Metabolically Reprogramming The Stroma To Starve Pancreatic Tumours
Funder
National Health and Medical Research Council
Funding Amount
$598,848.00
Summary
Pancreatic cancer claims five Australian lives every day. Despite aggressive treatment regimes, there has been no improvement in patient survival in the last decade. Evidence suggests that targeting cancer cells alone is not enough. Pancreatic tumours are surrounded by an extensive scar tissue reaction (stroma). This intense stromal reaction inhibits drug delivery and increases tumour growth. Thus, decreasing the stroma is a potential therapeutic strategy and is the focus of this proposal.
An Integrated Health-sector Strategy To Combat COPD And Asthma In Vietnam: A Pragmatic Stepped Intervention Cluster Randomized Trial
Funder
National Health and Medical Research Council
Funding Amount
$1,894,349.00
Summary
Chronic lung diseases are a major challenge for resource limited settings. In Vietnam, where smoking rates in males are around 50%, there is an urgent need for better strategies to prevent and treat chronic obstructive pulmonary disease (COPD) and asthma. We will perform a study of a low-cost integrated intervention including a health-system based smoking cessation program and the targeted use of proven therapy for COPD and asthma - inhaled corticosteroids - to reduce the burden of lung disease.
Translating Respiratory And Environmental Epidemiology Into Improved Lung Health
Funder
National Health and Medical Research Council
Funding Amount
$319,714.00
Summary
Chronic respiratory disease, tuberculosis and the effects of air pollution are important health problems globally. Evaluating current approaches to dealing with these problems and developing new approaches requires good data. Over the next five years I will lead a number of studies addressing these issues, in Australia and internationally, in order to provided the strongest possible evidence to underpin policy.
FUNCTIONAL IMAGING OF THE BRAINSTEM AND CORTICAL SITES OF BLOOD PRESSURE CONTROL IN HUMAN SUBJECTS IN HEALTH AND DISEASE
Funder
National Health and Medical Research Council
Funding Amount
$398,498.00
Summary
Disturbances in cardiovascular control underpin many diseases yet little is known about how the brain controls the heart and blood vessels. This project uses brain imaging (fMRI) and concurrent nerve recording in awake human subjects to increase our understanding of how normal blood pressure is maintained and how different disease states influence this control.
EPITHELIAL ION TRANSPORT DEFECTS IN CYSTIC FIBROSIS: PATHOPHYSIOLOGY AND TREATMENT
Funder
National Health and Medical Research Council
Funding Amount
$290,440.00
Summary
The thin layer of fluid covering the surface of the air passages acts to protect the airway surface from drying. This fluid also allows the hair-like projections, or cilia, on the top of the airway cells to beat more effectively. The volume and composition of this fluid is determined by the movement of salt and water across the mucous membranes of the air passages. The importance of this fluid is shown by the problems that occur in Cystic Fibrosis (CF), the most common lethal inherited disease a ....The thin layer of fluid covering the surface of the air passages acts to protect the airway surface from drying. This fluid also allows the hair-like projections, or cilia, on the top of the airway cells to beat more effectively. The volume and composition of this fluid is determined by the movement of salt and water across the mucous membranes of the air passages. The importance of this fluid is shown by the problems that occur in Cystic Fibrosis (CF), the most common lethal inherited disease affecting Australians. In CF, altered salt transport causes drying of the airway surface which impairs the working of the cilia. This leads to retention of mucous in the airway with repeated bacterial infections damaging the lungs. Simple tests have been designed to directly measure the movement of salt across the surface of the nasal passage using a fine soft rubber tube. Movement of mucous in the nose is measured using other simple techniques that are currently used diagnostically. Together, these tests in the nose provide vital information about how the surface of normal human airway moves salt, water and mucous. Any differences found in CF patients will then give us a good idea of the problems found in the CF lung. We will study the interactions between calcium, sodium and chloride in the fluid lining the airways, measuring changes in salt and mucous movement. A range of testing procedures will be used in human volunteers, anaesthetised mice and isolated tissues from sheep. We have already demonstrated important links between the fluid lining the airways and salt movement, and we expect that this may lead to the development of new treatments for Cystic Fibrosis. This therapy will focus on treating the lung problems of CF patients, the major cause of disability. We anticipate that this preventative therapy may offer real benefits in the fight to cure CF.Read moreRead less
Lung disease is a major cause of death and disability world-wide. Tuberculosis was responsible for 1.4 million deaths in 2011. Asthma and chronic obstructive pulmonary disease (COPD) have been high priority diseases in Australia for many years. It was estimated that there were over 3 million deaths attributable to particulate air pollution in 2010. In this Fellowship I will undertake a series of projects designed to improve our understanding of these diseases and their causes.
Mechanism Of Action Of Sec1p-like Proteins In Membrane Trafficking
Funder
National Health and Medical Research Council
Funding Amount
$234,936.00
Summary
One of the most important evolutionary changes that has occurred is the development of intracellular compartments. All eukaryotic cells possess numerous membrane-encased structures which provide the basis for intracellular specialisation. For example, in order to degrade unwanted components cells have developed degradative enzymes. It is vital for the cell that these enzymes are sequestered away from other cellular components to avoid destruction of valuable molecules. In addition, the cell has ....One of the most important evolutionary changes that has occurred is the development of intracellular compartments. All eukaryotic cells possess numerous membrane-encased structures which provide the basis for intracellular specialisation. For example, in order to degrade unwanted components cells have developed degradative enzymes. It is vital for the cell that these enzymes are sequestered away from other cellular components to avoid destruction of valuable molecules. In addition, the cell has developed a complex assembly line of modifications that are added to proteins in a specific order as they travel to their final destination within the cell. This necessitates the accurate passage of molecules between compartments, a process known as vesicle transport. To orchestrate the complex network of vesicular transport steps between all of the various intracellular compartments it is necessary to employ complex machinery to guide and check that these steps occur with high fidelity. The goal of our research proposal is to define the function of one of the molecules involved in this control process, the so-called Sec1p proteins. The strength of our proposal lies in the diversity of our approach. We intend to explore the molecular advantages of a relatively simple eukaryotic organism, a yeast cell, and apply the findings obtained from this cell to a more complex but highly related vesicular transport process; that of the insulin-regulated movement of a glucose transporter in mammalian fat and muscle cells. While we intend to apply our findings to the treatment of patients with diabetes, it is our ultimate goal to be able to learn more about this fundamental cell biological process so that we can apply our knowledge to understanding many different disease states.Read moreRead less
Alcoholic Chronic Pancreatitis: Induction, Progression And Reversal
Funder
National Health and Medical Research Council
Funding Amount
$632,211.00
Summary
Pancreatitis (inflammation of the pancreas) is a serious complication of alcohol abuse. Patients suffer from severe and often intractable abdominal pain, maldigestion and diabetes, We have recently shown that gut toxins (endotoxins) may act as a trigger factor for pancreatitis in alcoholics. The proposed project aims to characterise the effects of gut toxins on the pancreas during alcohol abuse so as to identify pathways that may be therapeutically targeted to prevent or retard the disease.