The health benefits of consuming fruits and vegetables can in part be attributed to their high content of polyphenolic compounds such as flavonoids. These substances can improve functioning of blood vessels and have the potential to reduce the risk of heart disease. This project will examine one of the most common flavonoids in the diet to try and understand how it works and better understand the protective effects.
Dysfunctional blood vessel growth is an important mechanism of many congenital vascular diseases and other postnatal diseases such as ischemia and cancer. Cerebral cavernous malformations (CCMs) are common vascular disease in brain that cause strokes and seizures in midlife. Due to their location in the brain, CCMs are virtually untreatable, making the development of novel therapies a priority. This proposal aims to understand how the molecular players underlying this brain vascular disease cont ....Dysfunctional blood vessel growth is an important mechanism of many congenital vascular diseases and other postnatal diseases such as ischemia and cancer. Cerebral cavernous malformations (CCMs) are common vascular disease in brain that cause strokes and seizures in midlife. Due to their location in the brain, CCMs are virtually untreatable, making the development of novel therapies a priority. This proposal aims to understand how the molecular players underlying this brain vascular disease control blood vessel function and growth.Read moreRead less
Role Of Microparticles In Cardiac Ischemia Reperfusion Injury
Funder
National Health and Medical Research Council
Funding Amount
$55,575.00
Summary
Interventional cardiology has reduced the mortality rate associated with heart attack, unfortunately the prevalence of heart failure has subsequently increased, caused in part by reperfusion injury of previously occluded vessels. We aim to identify novel insights into the pathogenesis of IR injury in the heart, as well as the development of new approaches to prevent cardiac damage during cardiac surgery, transplantation, post-angioplasty and coronary artery stenting.
Suppression Of NADPH Oxidase-derived Oxidative Stress By Anti-sense Probes And HDL In Human Vascular Endothelium
Funder
National Health and Medical Research Council
Funding Amount
$455,250.00
Summary
In Australia, coronary heart disease (CHD) causing heart attacks remains the largest cause of death, claiming a staggering 28,000 lives a year. Oxidative stress, resulting from increased production of oxygen free radicals in arteries, is an important cause of CHD, heart attacks and strokes. We seek to understand how such oxyradicals are produced in the key cells that form the lining of all arteries, known as the vascular endothelium. By using novel DNA-type molecules (known as anti-sense) develo ....In Australia, coronary heart disease (CHD) causing heart attacks remains the largest cause of death, claiming a staggering 28,000 lives a year. Oxidative stress, resulting from increased production of oxygen free radicals in arteries, is an important cause of CHD, heart attacks and strokes. We seek to understand how such oxyradicals are produced in the key cells that form the lining of all arteries, known as the vascular endothelium. By using novel DNA-type molecules (known as anti-sense) developed in our laboratory, which block a particular gene causing oxidative stress, we will determine whether this gene is responsible for the formation of oxyradicals in human and mouse cells grown in culture. In addition, we will explore whether this gene is turned on by factors known to be involved in CHD. Finally, we will also investigate whether the good cholesterol known as HDL can act to prevent oxidative stress in human cells, as we discovered it appears to do in living arteries in vivo. If we find it has the same protective effect in endothelium, we will determine how it does this, and which component proteins of the HDL particle are important. This might suggest new treatments to prevent acute events leading to heart attack and stroke, and possibly new applications where damage appears to result from acute oxidative stress, such as in the brain soon after a stroke has occurred. We also have a plan to develop antisense drugs that will target the important gene specifically in the affected endothelium. In addition, we have other specific new drugs that will block this system in arteries. Simultaneously we will be testing the role of this gene in mouse and rabbit models of artery disease, for both our types of drugs might provide valuable new therapeutic agents to target the underlying cause of CHD and not just its symptoms as current drugs do.Read moreRead less
New Insights Into The Mechanisms Of Thrombogenesis In Atrial Fibrillation
Funder
National Health and Medical Research Council
Funding Amount
$443,946.00
Summary
Atrial fibrillation (AF) is the most common heart rhythm disturbance (arrhythmia), which is associated with a high risk of stroke due to clot formation within the left atria. At present we still only have a limited understanding of the mechanism of clot formation in AF. The aim of this study is to determine the critical mechanisms that contribute to clot formation within the left atria in AF. This knowledge is fundamental to the development of more successful interventional approaches.
Mechanisms Of Vascular Dysfunction During Acute And Chronic Hyperglycemia
Funder
National Health and Medical Research Council
Funding Amount
$56,700.00
Summary
Increased consumption of sugary drinks has contributed to an epidemic of obesity and diabetes and consequently cardiovascular disease. For the first time in living memory, this may well lead to declining life-expectancy. My research will examine both the short and long-term impact of sugary drinks on vital blood vessel function. In the process it will develop better methods to monitor blood vessel function and inform public health policy on sugary drinks and preventing cardiovascular disease.
Smartphone Based Secondary Prevention Program For Patients With Acute Coronary Syndromes: A Randomised Control Trial
Funder
National Health and Medical Research Council
Funding Amount
$122,714.00
Summary
Patients at the highest risk of premature death, heart attacks and re-hospitalization are those with known coronary heart disease. Secondary prevention strategies and cardiac rehabilitation are under-utilised in clinical practice. We aim to close this treatment gap by establishing the role of a smartphone based secondary prevention program in patients who have experienced a heart attack. Our innovative model of care may empower patients to optimise their cardiac health.