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The Mechanism Of Growth Hormone Receptor Activation
Funder
National Health and Medical Research Council
Funding Amount
$679,500.00
Summary
Growth hormone GH excess or deficit results in considerably shortened lifespan. While cardiovascular disease is a major element in this mortality, GH status has also been linked to kidney disease and diabetic retinopathy. Importantly, GH produced locally in breast cells and prostate cells transform s these cells, creating cancers. We aim to define how GH activates its receptor, to facilitate a GH antagonist which results from understanding how GH activates its cell surface receptor.
Association Between Birthweight And The Metabolic Syndrome - A Study In Twins.
Funder
National Health and Medical Research Council
Funding Amount
$95,880.00
Summary
The Metabolic Syndrome is a shorthand term for a collection of disorders in the same individual; including Diabetes, high cholesterol levels, hypertension, atherosclerosis and obesity. These conditions have previously been assumed to occur because of genetic influences, acting in combination with the individual's lifestyle. However, another factor may also be important in causing the metabolic syndrome. A recent theory suggests that adverse events occurring during fetal development may result in ....The Metabolic Syndrome is a shorthand term for a collection of disorders in the same individual; including Diabetes, high cholesterol levels, hypertension, atherosclerosis and obesity. These conditions have previously been assumed to occur because of genetic influences, acting in combination with the individual's lifestyle. However, another factor may also be important in causing the metabolic syndrome. A recent theory suggests that adverse events occurring during fetal development may result in low birth weight and lead to metabolic changes which cause the metabolic syndrome in adulthood. This theory, if true, would have profound implications for the prevention of these common problems; which are the leading cause of death in developed countries. The validity of the Fetal Origins Hypothesis is curently uncertain. Confounding genetic and environmental factors make it difficult to separate the role of genetic, fetal and environmental influences. Studies of twins have the potential to sort out this important question. We will study the association between birthweight and the metabolic syndrome in sets of identical twins who have identical genes and similar environmental backgrounds. We will use a set of metabolic and hormone tests to define the characteristics of each twin. We will also employ a novel non-invasive method of measuring cell metabolism using magnetic resonance spectroscopy. If we find that the twin with lower birthweight usually has more adverse features of the metabolic syndrome, this will point to an important cause of cardiovascular disease. This study will provide very important insights into the influence of early life on subsequent health and may lead to a dramatic changes in our approach to the prevention of common diseases. Improving the health and well-being of pregnant mothers and their babies may turn out to be one of the most important public health issues that we can address.Read moreRead less
Hormonal Predictors Of Cardiovascular Outcomes And Mortality In Ageing Men: The Role Of Androgens And The IGF System.
Funder
National Health and Medical Research Council
Funding Amount
$125,035.00
Summary
As men age levels of testosterone and growth hormone fall while ill health increases. We do not know if low hormone levels directly cause heart disease. We will measure testosterone and IGF1, which reflects growth hormone, in 4,200 older men, and relate hormone levels to the future risk of ill health especially heart disease, stroke and large artery blockages. This will clarify whether low hormone levels increase risk of ill health, and the value of studies to test hormone therapy in older men.
Glycaemia And Cardiovascular Disease Outcomes In Patients With Diabetes And CKD: Methodology, Relationship And
Funder
National Health and Medical Research Council
Funding Amount
$143,661.00
Summary
Diabetes is increasing and now the primary cause of chronic kidney disease (CKD). At present the care of people with diabetes and CKD aims to achieve normal blood glucose levels in the safest possible way in order to prevent acute and chronic complications and improve outcomes and quality of life. In this project we will examine the best means by which to measure, monitor and treat blood glucose levels in such people and explore the effect of intensive blood glucose control.
I am an academic clinician who has a principal interest in all aspects of diabetes, especially treatment and complications, and who is also involved in studies of antimalarial pharmacology.
Gene Variants In Adiponectin And Its Receptors As Risk Factors For Metabolic And Cardiovascular Disease
Funder
National Health and Medical Research Council
Funding Amount
$534,107.00
Summary
Obesity has a major impact on the development of metabolic syndrome (MetS), type 2 diabetes (T2D), and cardiovascular disease (CVD). It is important to identify the molecular links between obesity and these conditions. Adiponectin, an adipocyte-specific hormone, is a likely molecular candidate because of its pleiotropic metabolic actions. We will investigate the role of adiponectin, the variants within its gene ADIPOQ, and that of its two receptors, in the development of MetS, T2D, and CVD.
Mechanisms Of Pro-atherogenic Effects Of Androgens In Human Vascular Cells
Funder
National Health and Medical Research Council
Funding Amount
$211,320.00
Summary
Atherosclerosis is the most important cardiovascular disease and is now the leading cause of death in Western societies. A major clue to the causality of the disease is the striking gender gap in its prevalence and severity. The gender gap in atherosclerotic cardiovascular disease may be due to genetic, lifestyle or hormonal differences between males and females. Of these, hormonal differences are the most amenable to therapeutic intervention. Accordingly, there has been a lot of interest in the ....Atherosclerosis is the most important cardiovascular disease and is now the leading cause of death in Western societies. A major clue to the causality of the disease is the striking gender gap in its prevalence and severity. The gender gap in atherosclerotic cardiovascular disease may be due to genetic, lifestyle or hormonal differences between males and females. Of these, hormonal differences are the most amenable to therapeutic intervention. Accordingly, there has been a lot of interest in the potential protective effects of estrogens but few have studied the role of androgens with sophisticated approaches to androgen physiology and pharmacology. Clues from epidemiological and our recent studies suggest that androgenic influences on atherosclerosis may involve positive and negative effects on atherogenesis but the mechanisms are not understood. We now propose a comprehensive approach to studying androgenic effects on vascular biology both to enhance knowledge as well as potentially opening new therapeutic options in selective androgen receptor modulation.Read moreRead less