Controlling Neuroinflammation In Alzheimers Disease
Funder
National Health and Medical Research Council
Funding Amount
$639,577.00
Summary
Alzheimer’s disease (AD) is the most common neurodegenerative disorder worldwide, with 269,000 Australians currently diagnosed with AD and is expected to soar to about 981,000 by 2050. AD accounts for greater than 60% of all cases of dementia. This grant investigates the role that neuroinflammation plays in the progression and exacerbation of AD and will identify new therapeutic strategies to combat this insidious disease.
Understanding Neuroinflammation In Alzheimer's Disease
Funder
National Health and Medical Research Council
Funding Amount
$1,043,216.00
Summary
This project opens a new line of enquiry into the cellular signalling mechanisms involved in the progression of AD and establishes whether targeting the involvement of type-1 IFN signalling influences the evolution of AD. New and novel approaches are clearly required to treat AD. Importantly, we believe that neuroinflammation is common to all causes of dementia and targeting the neuroinflammatory pathways has much wider implications than targeting the primary causative pathway.
Post-stroke Hyperglycaemia – Treatment With Exenatide In Acute Ischaemic Stroke (TEXAIS) Trial
Funder
National Health and Medical Research Council
Funding Amount
$1,266,149.00
Summary
Raised blood glucose levels (hyperglycaemia) after a stroke is common. It reduces the efficacy of stroke treatments and results in worse outcomes. Insulin is not useful as a treatment for this as it causes frequent hypoglycaemia and does not improve clinical outcomes. Exenatide is a common diabetes drug that is simple to use and lowers blood glucose without hypoglycaemia. It will be tested in the Treatment with Exenatide in Acute Ischaemic Stroke (TEXAIS) trial.
Dementia In Type 2 Diabetes – Studying Causal Mechanisms
Funder
National Health and Medical Research Council
Funding Amount
$514,786.00
Summary
Type 2 diabetes mellitus (T2D) is an important risk factor for dementia, and knowledge regarding the biological pathways linking the two disorders can provide great insight into the causes of dementia overall. I plan to study the links between T2D and dementia using analytical modelling to tease out causal pathways. My overall vision is to establish a sound knowledge base upon which effective interventions can be devised to prevent or delay dementia, using T2D-related dementia as a model.
The Role Of Brain Inflammation In Leptin Resistance
Funder
National Health and Medical Research Council
Funding Amount
$730,123.00
Summary
Melanocortin neurons control body weight and are regulated by leptin. In obesity leptin cannot regulate the melanocortin system. We will test if leptin action on melanocortin neurons is limited by increased expression of suppressor of cytokine signalling 3 (SOCS3) in obese mice. As an alternative we will test if there are changes in the blood brain barrier, or an increased density of support and immune cells around melanocortin neurons of obese mice that might restrict inputs to these neurons.
Investigating Underlying Mechanisms Linking Type 2 Diabetes With Alzheimer’s Disease Pathology
Funder
National Health and Medical Research Council
Funding Amount
$701,950.00
Summary
With type-2 diabetes representing a major risk factor for neurodegenerative diseases such as Alzheimer's disease, it is important to understand the underlying mechanisms. This project will provide significant insight into how T2D impacts the brain with a focus on how deficiencies in brain inuslin signaling drives neurodegeneration. We will also evaluate novel inuslin like molecules at improving brain insulin siganling and preventing or slowing down the neurodegenerative process.
Use of an animal model to understand mechanisms underlying reductions in body weight associated with use of the laparoscopic adjustable gastric band. At least one in ten Australians is classified as morbidly obese and as such are eligible for bariatric surgery. Those undergoing the surgery will achieve an average excess weight loss of up to 60 per cent, they will have reduced or eliminated diabetes and will appreciably improve their prospects of survival. These experiments aimed at understandin ....Use of an animal model to understand mechanisms underlying reductions in body weight associated with use of the laparoscopic adjustable gastric band. At least one in ten Australians is classified as morbidly obese and as such are eligible for bariatric surgery. Those undergoing the surgery will achieve an average excess weight loss of up to 60 per cent, they will have reduced or eliminated diabetes and will appreciably improve their prospects of survival. These experiments aimed at understanding the mechanisms underpinning this success have the potential to further improve surgical approaches and outcomes and provide insights that will better enable weight loss therapies for all overweight and obese Australians.Read moreRead less
Enzymes that generate or degrade peptides serve important roles - alterations in their activity can impact on a diverse range of physiological processes in healthy and diseased states. Angiotensin is a peptide that plays a critical role in regulating blood pressure and fluid balance - drugs that block the activity of its processing enzymes forms an important class of medication used to treat hypertension and heart disease. My research interest is in discovering novel roles for these enzymes.
To Understand The Role Of The Plasminogen Activating And Matrix Metalloproteinase Systems In Traumatic Brain Injury
Funder
National Health and Medical Research Council
Funding Amount
$499,321.00
Summary
Tissue-type plasminogen activator (t-PA) is known for its role as a clot dissolving protein. It is present in the brain and following traumatic brain injury (TBI), it can worse brain cell damage. We have established a mouse model of TBI . We will compare brain damage in mice that are deficient in or have high amounts of t-PA. We will also determine whether the recovery rate post-TBI can be improved using specific t-PA blockers. This project may provide new therapies for TBI.
Effects Of Melanocortin Neurons On Systemic Glucose Homeostasis
Funder
National Health and Medical Research Council
Funding Amount
$860,251.00
Summary
There is good evidence that the brain can control blood glucose, but we do not know how this occurs, or why this doesn’t work in diabetes. This grant will use cutting edge mouse genetic technology to determine how the brain controls blood glucose, and what changes in diabetes. This grant will determine how several hormones act through the brain to change glucose levels, and will help develop new strategies to treat high blood glucose.