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Development Of A Protein Tyrosine Kinase Inhibitor For Modification Of GAG Chains And Prevention Of Atherosclerosis
Funder
National Health and Medical Research Council
Funding Amount
$389,778.00
Summary
The major health issue in Australia is vascular and cardiovascular disease resulting from obesity and diabetes. Whilst prevention strategies based on lifestyle changes are preferable, treating cardiovascular risk factors with the latest drugs has been shown to produce significant benefits. There is however a large group of patients who still acquire cardiovascular disease in spite of drug therapy. New therapies are required and these will most likely target blood vessels directly. We have identi ....The major health issue in Australia is vascular and cardiovascular disease resulting from obesity and diabetes. Whilst prevention strategies based on lifestyle changes are preferable, treating cardiovascular risk factors with the latest drugs has been shown to produce significant benefits. There is however a large group of patients who still acquire cardiovascular disease in spite of drug therapy. New therapies are required and these will most likely target blood vessels directly. We have identified a biochemical mechanism that represents a prime target for vascular wall directed therapy and we aim to exploit the therapeutic potential of this pathway by developing a drug to prevent atherosclerosis. A group of large molecules which have recently received increasing attention are the proteoglycans, combined protein-sugar molecules which are heavily coated with negatively charged groups. The binding and retention of lipids in the wall of the blood vessel is the main cause of atherosclerosis. Specifically, the length of the sugar (GAG) chains on the proteoglycans determines the binding of the lipids. We have discovered a new class of inhibitors which directly target proteoglycan synthesis in the vessel wall and greatly reduce the interaction between proteoglycans and lipids. We wish to demonstrate the efficacy of our compound in an animal model with the aim to produce a marked reduction in the rate and extent of development of atherosclerosis. This would lay the foundation for the compound to be taken into human safety trials and subsequently develop an agent for the prevention of atherosclerosis and a thus a reduction in cardiovascular disease.Read moreRead less
Development And Clinical Evaluation Of A Depth Of Anaesthesia Monitor
Funder
National Health and Medical Research Council
Funding Amount
$424,785.00
Summary
Waking up during surgery (awareness under anaesthesia) is a frightening reality for some patients. Although uncommon (occurring in about 1 in 1000 operations), it remains one of the main concerns of patients before their surgery. Recent studies (including our own) have demonstrated that processed EEG monitoring using bispectral index (BIS) can markedly reduce the risk of awareness. Other EEG monitors are being developed, but each have weaknesses. As approximately two million Australians have a g ....Waking up during surgery (awareness under anaesthesia) is a frightening reality for some patients. Although uncommon (occurring in about 1 in 1000 operations), it remains one of the main concerns of patients before their surgery. Recent studies (including our own) have demonstrated that processed EEG monitoring using bispectral index (BIS) can markedly reduce the risk of awareness. Other EEG monitors are being developed, but each have weaknesses. As approximately two million Australians have a general anaesthetic each year, about 2000 will suffer an episode of awareness. More than 60 million people around the world have an anaesthetic, and so the problem is substantial. This suggests the potential benefits (health outcomes, commercial gains) are very great. In 2000 less than 5% of US hospitals used BIS monitoring; the current figure in the US is about 69% of the best-rated hospitals (US News and World Report) and 78% of teaching hospitals. A similar rapid growth is occurring in Australia and Europe. We are working with a successful Australian Company (Compumedics Ltd) to develop a better awareness monitor. We plan studies in groups of patients have surgery.Read moreRead less
Development Of New Anti-fibrotic Drugs For Prevention Of Diabetic Nephropathy.
Funder
National Health and Medical Research Council
Funding Amount
$133,800.00
Summary
Diabetic kidney disease is the leading cause of kidney failure in the developed world. Currently there is no treatment that reduces the excessive scarring that leads to kidney failure. This project aims to test whether a series of novel compounds that have been specifically designed to reduce scarring can prevent diabetic kidney disease.
A Novel Method For The Early Detection Of Cardiovascular Disease Through The Direct Measurement Of Tissue Wall Elasticit
Funder
National Health and Medical Research Council
Funding Amount
$196,000.00
Summary
Changes in the structure and function of blood vessels are an early stage in the development of arterial disease. A simple means of assessing this damage will allow for early detection of arterial disease and will provide a tool for monitoring outcomes of treatment and preventive medicine. We have developed a novel method for measuring vessel wall displacement throughout the cardiac cycle. This study aims to provide proof of principle data through the validation of these measurements against the ....Changes in the structure and function of blood vessels are an early stage in the development of arterial disease. A simple means of assessing this damage will allow for early detection of arterial disease and will provide a tool for monitoring outcomes of treatment and preventive medicine. We have developed a novel method for measuring vessel wall displacement throughout the cardiac cycle. This study aims to provide proof of principle data through the validation of these measurements against the physical properties of the vessel and application of the technique to a clinical setting.Read moreRead less
Performance And Safety Testing Of The BioQ Cardiac Assist System In A Chronic Ovine Heart Failure Animal Model
Funder
National Health and Medical Research Council
Funding Amount
$142,800.00
Summary
This proposal will test a novel cardiac assist system in safety and performance studies using a chronic sheep heart failure model. This device has been tested in cardiovascular simulators and in an acute animal model showing attractive proof-of-concept data. Specifically, the device increased left coronary artery blood flow and reduced aortic pulse and mean pressures using our novel self-powered fully implantable stand alone device, a potential therapy treatment for heart failure.
Development Of Oral Natriuretic-like Peptides For Chronic Treatment Of Congestive Heart Failure
Funder
National Health and Medical Research Council
Funding Amount
$389,533.00
Summary
Congestive heart failure is fatal disease and a major disease burdon for the community affecting nearly half a million Australians.. Current therapies are inadequate and very limited in prolonging life. We seek to develop a new peptide therepy based on the effectivness of human B type natriuetic peptide which has to be given by injection. Our aim is to produce an orally active and effective treatment based on peptides discovered in snake venom. The program involves testing in animals and cells
Development Of A Computer-based Retinal Imaging Program For Identification Of People At Risk Of Cardiovascular Disease.
Funder
National Health and Medical Research Council
Funding Amount
$254,714.00
Summary
Cardiovascular disease is the leading cause of death and imposes an enormous financial and healthcare burden on the Australian community. This project will develop and deliver a novel clinical prediction tool, incorporating retinal vascular imaging and assessment, to improve identification of asymptomatic people who are at high risk of cardiovascular disease at an early stage, allowing implementation of preventative strategies and medical interventions to effectively prevent CV disease.
Development Of Oral Natruiretic Peptides For Congestive Heart Failure
Funder
National Health and Medical Research Council
Funding Amount
$511,037.00
Summary
Congestive heart failure is fatal disease and a major disease burden for the community affecting nearly half a million Australians. Current therapies are inadequate. We seek to develop a new peptide therapy based on snake venom version of the human B type natriuretic peptide which has to be given by injection. We will produce an orally active, stable and effective treatment using a program of discovery involving testing in animals and cells.
Development Of Guanylate Cyclase Activators For The Treatment Of Pulmonary Arterial Hypertension
Funder
National Health and Medical Research Council
Funding Amount
$137,684.00
Summary
Pulmonary arterial hypertension (PAH) is a life threatening condition with few treatment options. It is marked by shortness of breath and reduced energy as a result of an unexplained constriction of the blood vessels in the lung. This results in reduced life expectancy. We are developing a new treatment that will relax the blood vessels in the lung to improve quality and length of life.
Development Of Non-surgical Approach To Treating Tricuspid Regurgitation
Funder
National Health and Medical Research Council
Funding Amount
$266,427.00
Summary
Heart failure is a common problem in which the heart enlarges and contracts poorly. In association with enlargement of the heart, the heart valves also begin to fail causing further worsening of quality and length of life. Failure of the tricuspid valve occurs in upto 87% of patients with heart failure and presently the only treatment option is high risk heart surgery. We are developing a way of dealing with tricuspid valve failure that does not require cardiac surgery.