Characterising The Effects Of Oxidative Stress On The Human L-type Ca2+ Channel Isoforms And Role In Human Pathology
Funder
National Health and Medical Research Council
Funding Amount
$250,805.00
Summary
Oxidative stress, poor energy production and increases in intracellular calcium are features of the failing heart. I have determined that the function of the L-type calcium channel, the primary protein responsible for calcium influx and contraction can be regulated by free radicals produced by the mitochondria (powerhouse of the cell). This proposal will determine the site of modification on the human L-type calcium channel and how communication between the channel and the mitochondria is altere ....Oxidative stress, poor energy production and increases in intracellular calcium are features of the failing heart. I have determined that the function of the L-type calcium channel, the primary protein responsible for calcium influx and contraction can be regulated by free radicals produced by the mitochondria (powerhouse of the cell). This proposal will determine the site of modification on the human L-type calcium channel and how communication between the channel and the mitochondria is altered in animal models of human disease.Read moreRead less
Oxidative Processes In Vascular Health And Disease
Funder
National Health and Medical Research Council
Funding Amount
$851,980.00
Summary
The process that turns cut fruit brown when it is exposed to air is thought to cause disease of our blood vessels and heart as we age. Despite what we first thought, 'blocking' this oxidation process with antioxidant supplements does not lower heart disease. This is because oxidation not only causes harm but also is useful and essential for normal body function. Our research program aims to show which oxidative processes are needed for blood vessel health or cause vessel disease.
Pathophysiology And Treatment Of Malaria In Our Region
Funder
National Health and Medical Research Council
Funding Amount
$951,005.00
Summary
Malaria continues to kill 420,000 people/year. I will lead a team of clinical scientists in identifying how each of the different malaria parasites cause damage to small blood vessels, kidneys and other organs, and will test whether two different drugs can improve these processes and reduce illness. Many of my previous research findings have changed malaria treatment in Australia and across SE Asia, and, where appropriate, I will use new research findings to improve treatments.
Heart failure (HF) describes where the heart cannot pump adequately to meet the bodyÍs needs. Mortality remains high; therefore, there is an urgent need for new treatment approaches. The present grant aims to: (1) evaluate treatments for patients at high-risk for future development of HF (2) examine the ability to safely withdraw unnecessary HF drugs (3) focus on the effect of HF on the kidney via novel treatment strategies (4) examine the emerging role of cancer drugs in development of HF.
Improving Outcomes In Heart Failure Through Basic, Clinical And Translational Research
Funder
National Health and Medical Research Council
Funding Amount
$951,005.00
Summary
Heart failure (HF) is a common, chronic cardiovascular condition characterised by a reduced capacity of the heart to function. Patients with HF have a poor quality of life and significantly reduced survival. My proposed programme of research will improve the understanding of heart failure (HF) and lead to better treatments.
The L-type Calcium Channel In Cardiovascular Health And Disease
Funder
National Health and Medical Research Council
Funding Amount
$631,370.00
Summary
Calcium influx into cardiac muscle cells occurs via the L-type calcium channel. The channel is essential to life but when function is altered it can contribute to the development of sudden death and heart failure. I have made significant discoveries in understanding the role of the channel in disease and I have exploited this knowledge to design therapy including a novel class of calcium channel antagonists to prevent the development of heart failure.
Personalised Exercise As Medicine. Optimising The Prescription To Maximise The Benefit
Funder
National Health and Medical Research Council
Funding Amount
$772,490.00
Summary
Humans have never been less physically active than in contemporary Western society. These studies will provide an evidence-basis to address the inactivity epidemic by laying the foundation for personalised and effective exercise prescriptions, to which people are more likely to adhere.
Sun Exposure, Vitamin D And Photohealth Over The Lifetime
Funder
National Health and Medical Research Council
Funding Amount
$622,655.00
Summary
Australia is a sunny country with a diverse population. Inappropriate sun exposure for skin type leads to skin cancer (mainly in the fair-skinned) and vitamin D deficiency (particularly in the darker-skinned). Potential benefits of sun exposure are broader than vitamin D production, but remain ill-defined. There are few data on appropriate sun exposure for children. This research fellowship builds the evidence to guide sun exposure messages.
The key goal of my research is to understand the role of protein phosphorylation in controlling metabolism, with a special emphasis on the structure and function of members of the AMP-activated protein kinase (AMPK) pathway. This is important because the function and survival of all organisms is dependent on the dynamic control of energy metabolism, with energy demand matched to energy supply.