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Mineralocorticoid Receptors - Mechanisms Of Ligand- And Tissue- Specific Activation
Funder
National Health and Medical Research Council
Funding Amount
$126,848.00
Summary
Heart disease is a major cause of death and economic burden in Australia and throughout the world. The steroid hormone aldosterone controls salt and water balance, blood pressure and has a significant role in heart failure. Although drugs that block the aldosterone receptor significantly help patients with heart failure, their use is limited by side effects. This work will identify the profile of proteins that promote aldosterone effects and enable the development of heart-specific blockers.
Mineralocorticoid Receptor Co-regulator Recruitment Determines Ligand Specific Signalling.
Funder
National Health and Medical Research Council
Funding Amount
$491,530.00
Summary
Heart disease is a major cause of death and economic burden in Australia and throughout the world. The steroid hormone aldosterone controls salt and water balance,blood pressure and hasa significant role in heart failure. Although drugs that block the aldosterone receptor significantly help patients with heart failure, their use is limited by side effects. This work will identify the profile of proteins that promote aldosterone effects and enable the development of heart-specific blockers.
Mechanisms Of Hypoglycaemic Damage In Developing Brain- A Protective Role For The Insulin-like Growth Factor System
Funder
National Health and Medical Research Council
Funding Amount
$408,055.00
Summary
The developing brain in the newborn infant or young child is vulnerable to many damaging influences. It is highly dependent on its essential fuel, glucose. Hypoglycemia, or lack of glucose availability, is therefore among the most damaging insults to the young brain, potentially leading to learning difficulties, developmental delay, cerebral palsy or epilepsy. Babies born premature or very small are at risk, as are those exposed to excessive insulin, such as infants of diabetic mothers. Children ....The developing brain in the newborn infant or young child is vulnerable to many damaging influences. It is highly dependent on its essential fuel, glucose. Hypoglycemia, or lack of glucose availability, is therefore among the most damaging insults to the young brain, potentially leading to learning difficulties, developmental delay, cerebral palsy or epilepsy. Babies born premature or very small are at risk, as are those exposed to excessive insulin, such as infants of diabetic mothers. Children with diabetes are also at risk, when their therapy with insulin may at times be excessive, leading to hypoglycaemia and impaired glucose availability for the brain. This proposal is examining at the cellular level the mechanisms involved in loss of brain cells in the face of glucose starvation in these various conditions. We are using several in vitro models where we can grow segments of developing mouse brain or human nerve cells in a dish, compared to studies with mice subjected to low blood glucose (hypoglycemia). After establishing that our laboratory models are representative of the whole animal, we will explore the cellular mechanisms involved in neuronal death following hypoglycaemia, particularly the interaction between the insulin-like growth factor (IGF) and other cell survival genes. We will also examine the possibility that treatment with IGF will reduce the loss of nerves in the brain after an episode of hypoglycemia. This may offer new and effective early treatment for this damaging brain injury in both newborn babies and children with insulin-dependent diabetes.Read moreRead less
Functional Role Of A Novel Coregulator In Metabolism
Funder
National Health and Medical Research Council
Funding Amount
$563,146.00
Summary
Australia is facing a massive epidemic of diabetes and obesity (diabesity). These disorders afflict all age groups, including teenagers, and are a major burden to the health and wealth of Australia. The nuclear receptors and their coregulators are excellent targets for developing new therapeutics to combat these disorders. This grant will evaluate the functional role of SLIRP, a novel nuclear receptor coregulator, in metabolism and could provide new avenues for drug target development.